diff options
Diffstat (limited to 'platform/windows/gsview/MainWindow.xaml.cs')
| -rw-r--r-- | platform/windows/gsview/MainWindow.xaml.cs | 5058 |
1 files changed, 0 insertions, 5058 deletions
diff --git a/platform/windows/gsview/MainWindow.xaml.cs b/platform/windows/gsview/MainWindow.xaml.cs deleted file mode 100644 index 0ca822e9..00000000 --- a/platform/windows/gsview/MainWindow.xaml.cs +++ /dev/null @@ -1,5058 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading; -using System.Threading.Tasks; -using System.Windows; -using System.Windows.Controls; -using System.Windows.Data; -using System.Windows.Documents; -using System.Windows.Input; -using System.Windows.Media; -using System.Windows.Media.Imaging; -using System.Windows.Navigation; -using System.Windows.Shapes; -using System.Windows.Forms; -using System.ComponentModel; -using System.IO; -using System.Windows.Xps.Packaging; -using System.Printing; -using System.Windows.Markup; -using System.Runtime.InteropServices; -using Microsoft.Win32; /* For registry */ -using System.Reflection; -using System.Diagnostics; - - -public enum AA_t -{ - HIGH = 8, - MEDHIGH = 6, - MED = 4, - LOW = 2, - NONE = 0 -} - -enum PDFType_t -{ - PDFX, - PDFA -} - -enum AppBar_t -{ - TEXT_SEARCH, - STANDARD -} - -enum NotifyType_t -{ - MESS_STATUS, - MESS_ERROR -}; - -enum RenderingStatus_t -{ - REN_AVAILABLE, - REN_THUMBS, - REN_UPDATE_THUMB_CANVAS, - REN_PAGE /* Used to ignore value when source based setting */ -}; - -public enum status_t -{ - S_ISOK, - E_FAILURE, - E_OUTOFMEM, - E_NEEDPASSWORD -}; - -public enum textout_t -{ - HTML = 0, - XML, - TEXT -} - -enum zoom_t -{ - NO_ZOOM, - ZOOM_IN, - ZOOM_OUT -} - -enum view_t -{ - VIEW_WEB, - VIEW_CONTENT, - VIEW_PAGE, - VIEW_PASSWORD, - VIEW_TEXTSEARCH -}; - -public enum Page_Content_t -{ - FULL_RESOLUTION = 0, - THUMBNAIL, - OLD_RESOLUTION, - NOTSET -}; - -/* Put all the PDF types first to make the switch statment shorter - Save_Type_t.PDF is the test */ -public enum Save_Type_t -{ - PDF13, - LINEAR_PDF, - PDFA1_RGB, - PDFA1_CMYK, - PDFA2_RGB, - PDFA2_CMYK, - PDFX3_GRAY, - PDFX3_CMYK, - PDF, - PCLXL, - XPS, - SVG, - TEXT, - HTML, - XML -} - -public enum Extract_Type_t -{ - PDF, - EPS, - PS, - SVG -} - -/* C# has no defines.... */ -static class Constants -{ - public const int SCROLL_STEPSIZE = 48; - public const int INIT_LOOK_AHEAD = 2; /* A + count on the pages to pre-render */ - public const int THUMB_PREADD = 10; - public const double MIN_SCALE = 0.5; - public const double SCALE_THUMB = 0.05; - public const int BLANK_WIDTH = 17; - public const int BLANK_HEIGHT = 22; - public const double ZOOM_STEP = 0.25; - public const int ZOOM_MAX = 4; - public const double ZOOM_MIN = 0.25; - public const int KEY_PLUS = 0xbb; - public const int KEY_MINUS = 0xbd; - public const int ZOOM_IN = 0; - public const int ZOOM_OUT = 1; - public const double SCREEN_SCALE = 1; - public const int HEADER_SIZE = 54; - public const int SEARCH_FORWARD = 1; - public const int SEARCH_BACKWARD = -1; - public const int TEXT_NOT_FOUND = -1; - public const int DEFAULT_GS_RES = 300; - public const int DISPATCH_TIME = 50; - public const int SCROLL_STEP = 10; - public const int SCROLL_EDGE_BUFFER = 90; - public const int VERT_SCROLL_STEP = 48; - public const int PAGE_MARGIN = 1; - public const int MAX_PRINT_PREVIEW_LENGTH = 250; -} - -public static class DocumentTypes -{ - public const string PDF = "Portable Document Format"; - public const string PS = "PostScript"; - public const string XPS = "XPS"; - public const string EPS = "Encapsulated PostScript"; - public const string CBZ = "Comic Book Archive"; - public const string PNG = "Portable Network Graphics Image"; - public const string JPG = "Joint Photographic Experts Group Image"; - public const string UNKNOWN = "Unknown"; -} - -namespace gsview -{ - /// <summary> - /// Interaction logic for MainWindow.xaml - /// </summary> - /// - - public struct pageprogress_t - { - public Byte[] bitmap; - public BlocksText charlist; - public int pagenum; - public Point size; - public Annotate_t annot; - } - - public struct ContextMenu_t - { - public int page_num; - public Point mouse_position; - } - - public struct thumb_t - { - public int page_num; - public Byte[] bitmap; - public Point size; - } - - public struct searchResults_t - { - public String needle; - public bool done; - public int page_found; - public List<Rect> rectangles; - public int num_rects; - } - - public struct printPreviewPage_t - { - public Byte[] bitmap; - public int width; - public int height; - public double width_inches; - public double height_inches; - } - - public struct textSelectInfo_t - { - public int pagenum; - public bool first_line_full; - public bool last_line_full; - } - - public static class ScrollBarExtensions - { - public static double GetThumbCenter(this System.Windows.Controls.Primitives.ScrollBar s) - { - double thumbLength = GetThumbLength(s); - double trackLength = s.Maximum - s.Minimum; - - return thumbLength / 2 + s.Minimum + (s.Value - s.Minimum) * - (trackLength - thumbLength) / trackLength; - } - - public static void SetThumbCenter(this System.Windows.Controls.Primitives.ScrollBar s, double thumbCenter) - { - double thumbLength = GetThumbLength(s); - double trackLength = s.Maximum - s.Minimum; - - if (thumbCenter >= s.Maximum - thumbLength / 2) - { - s.Value = s.Maximum; - } - else if (thumbCenter <= s.Minimum + thumbLength / 2) - { - s.Value = s.Minimum; - } - else if (thumbLength >= trackLength) - { - s.Value = s.Minimum; - } - else - { - s.Value = (int)(s.Minimum + trackLength * - ((thumbCenter - s.Minimum - thumbLength / 2) - / (trackLength - thumbLength))); - } - } - - public static double GetThumbLength(this System.Windows.Controls.Primitives.ScrollBar s) - { - double trackLength = s.Maximum - s.Minimum; - return trackLength * s.ViewportSize / - (trackLength + s.ViewportSize); - } - - public static void SetThumbLength(this System.Windows.Controls.Primitives.ScrollBar s, double thumbLength) - { - double trackLength = s.Maximum - s.Minimum; - - if (thumbLength < 0) - { - s.ViewportSize = 0; - } - else if (thumbLength < trackLength) - { - s.ViewportSize = trackLength * thumbLength / (trackLength - thumbLength); - } - else - { - s.ViewportSize = double.MaxValue; - } - } - } - - public partial class MainWindow : Window - { - mudocument mu_doc = null; - public Pages m_docPages; - List<textSelectInfo_t> m_textSelect; - List<DocPage> m_thumbnails; - List<List<RectList>> m_page_link_list = null; - IList<RectList> m_text_list; - DocPage m_PrintPreviewPage; - public List<LinesText> m_lineptrs = null; - public List<BlocksText> m_textptrs = null; - List<Boolean> m_textset = null; - private bool m_file_open; - private int m_currpage; - private int m_searchpage; - private int m_num_pages; - private bool m_init_done; - private bool m_links_on; - String m_textsearchcolor = "#4072AC25"; - String m_textselectcolor = "#402572AC"; - String m_regionselect = "#00FFFFFF"; - String m_blockcolor = "#00FFFFFF"; - //String m_regionselect = "#FFFF0000"; /* Debug */ - String m_linkcolor = "#40AC7225"; - private bool m_have_thumbs; - double m_doczoom; - ghostsharp m_ghostscript; - String m_currfile; - String m_origfile; - private gsprint m_ghostprint = null; - bool m_isXPS; - bool m_isImage; - gsOutput m_gsoutput; - Convert m_convertwin; - PageExtractSave m_extractwin; - Password m_password = null; - PrintControl m_printcontrol = null; - String m_currpassword = null; - BackgroundWorker m_thumbworker = null; - BackgroundWorker m_textsearch = null; - BackgroundWorker m_linksearch = null; - BackgroundWorker m_openfile = null; - BackgroundWorker m_initrender = null; - BackgroundWorker m_printerpreview = null; - BackgroundWorker m_copytext = null; - String m_document_type; - Info m_infowindow; - OutputIntent m_outputintents; - Selection m_selection; - String m_prevsearch = null; - bool m_clipboardset; - bool m_doscroll; - bool m_intxtselect; - bool m_textselected; - System.Windows.Threading.DispatcherTimer m_dispatcherTimer = null; - double m_lastY; - double m_maxY; - bool m_ignorescrollchange; - double m_totalpageheight; - AA_t m_AA; - bool m_regstartup; - int m_initpage; - bool m_selectall; - bool m_showannot; - bool m_ScrolledChanged; - - public MainWindow() - { - InitializeComponent(); - this.Closing += new System.ComponentModel.CancelEventHandler(Window_Closing); - m_file_open = false; - m_regstartup = true; - m_showannot = true; - - /* Allocations and set up */ - try - { - m_docPages = new Pages(); - m_thumbnails = new List<DocPage>(); - m_PrintPreviewPage = new DocPage(); - m_lineptrs = new List<LinesText>(); - m_textptrs = new List<BlocksText>(); - m_textset = new List<Boolean>(); - m_ghostscript = new ghostsharp(); - m_ghostscript.gsUpdateMain += new ghostsharp.gsCallBackMain(gsProgress); - m_gsoutput = new gsOutput(); - m_gsoutput.Activate(); - m_outputintents = new OutputIntent(); - m_outputintents.Activate(); - m_ghostscript.gsIOUpdateMain += new ghostsharp.gsIOCallBackMain(gsIO); - m_ghostscript.gsDLLProblemMain += new ghostsharp.gsDLLProblem(gsDLL); - m_convertwin = null; - m_extractwin = null; - m_selection = null; - xaml_ZoomSlider.AddHandler(MouseLeftButtonUpEvent, new MouseButtonEventHandler(ZoomReleased), true); - xaml_PageList.AddHandler(Grid.DragOverEvent, new System.Windows.DragEventHandler(Grid_DragOver), true); - xaml_PageList.AddHandler(Grid.DropEvent, new System.Windows.DragEventHandler(Grid_Drop), true); - DimSelections(); - status_t result = CleanUp(); - - string[] arguments = Environment.GetCommandLineArgs(); - if (arguments.Length > 1) - { - string filePath = arguments[1]; - ProcessFile(filePath); - } - else - { - if (m_regstartup) - InitFromRegistry(); - } - } - catch (OutOfMemoryException e) - { - Console.WriteLine("Memory allocation failed at initialization\n"); - ShowMessage(NotifyType_t.MESS_ERROR, "Out of memory: " + e.Message); - } - } - - private void Grid_DragOver(object sender, System.Windows.DragEventArgs e) - { - if (e.Data.GetDataPresent(System.Windows.DataFormats.FileDrop)) - { - e.Effects = System.Windows.DragDropEffects.All; - } - else - { - e.Effects = System.Windows.DragDropEffects.None; - } - e.Handled = false; - } - - private void Grid_Drop(object sender, System.Windows.DragEventArgs e) - { - if (e.Data.GetDataPresent(System.Windows.DataFormats.FileDrop)) - { - string[] docPath = (string[]) e.Data.GetData(System.Windows.DataFormats.FileDrop); - ProcessFile(String.Join("",docPath)); - } - } - - void CloseExtraWindows(bool shutdown) - { - if (m_selection != null) - m_selection.Close(); - if (m_convertwin != null) - m_convertwin.Close(); - if (m_extractwin != null) - m_extractwin.Close(); - if (m_infowindow != null) - m_infowindow.Close(); - if (shutdown) - { - if (m_gsoutput != null) - m_gsoutput.RealWindowClosing(); - if (m_outputintents != null) - m_outputintents.RealWindowClosing(); - if (m_printcontrol != null) - m_printcontrol.RealWindowClosing(); - } - else - { - if (m_gsoutput != null) - m_gsoutput.Hide(); - if (m_outputintents != null) - m_outputintents.Hide(); - if (m_printcontrol != null) - m_printcontrol.Hide(); - } - } - - void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e) - { - CloseExtraWindows(true); - } - - /* Stuff not enabled when source is XPS */ - void EnabletoPDF() - { - xaml_savepdf.IsEnabled = true; - xaml_linearize_pdf.IsEnabled = true; - xaml_saveas.IsEnabled = true; - xaml_Extract.IsEnabled = true; - xaml_conversions.IsEnabled = true; - xaml_extractselection.IsEnabled = true; - } - - void DisabletoPDF() - { - xaml_savepdf.IsEnabled = false; - xaml_linearize_pdf.IsEnabled = false; - xaml_saveas.IsEnabled = false; - xaml_Extract.IsEnabled = false; - xaml_conversions.IsEnabled = false; - xaml_extractselection.IsEnabled = false; - } - - private void DimSelections() - { - xaml_currPage.Text = ""; - xaml_TotalPages.Text = "/ 0"; - xaml_Zoomsize.Text = "100"; - xaml_BackPage.Opacity = 0.5; - xaml_Contents.Opacity = 0.5; - xaml_currPage.Opacity = 0.5; - xaml_currPage.IsEnabled = false; - xaml_ForwardPage.Opacity = 0.5; - xaml_Links.Opacity = 0.5; - xaml_Print.Opacity = 0.5; - xaml_SavePDF.Opacity = 0.5; - xaml_Search.Opacity = 0.5; - xaml_Thumbs.Opacity = 0.5; - xaml_TotalPages.Opacity = 0.5; - xaml_zoomIn.Opacity = 0.5; - xaml_zoomOut.Opacity = 0.5; - xaml_Zoomsize.Opacity = 0.5; - xaml_ExpandFill.Opacity = 0.5; - xaml_ContScrollFill.Opacity = 0.5; - xaml_ActualSize.Opacity = 0.5; - xaml_Zoomsize.IsEnabled = false; - xaml_ZoomSlider.Opacity = 0.5; - xaml_ZoomSlider.IsEnabled = false; - xaml_saveas.IsEnabled = false; - xaml_closefile.IsEnabled = false; - xaml_showinfo.IsEnabled = false; - xaml_extractselection.IsEnabled = false; - xaml_conversions.IsEnabled = false; - xaml_gsmessage.IsEnabled = false; - xaml_print_menu.IsEnabled = false; - xaml_view.IsEnabled = false; - xaml_edit.IsEnabled = false; - } - - private status_t CleanUp() - { - m_init_done = false; - this.Cursor = System.Windows.Input.Cursors.Arrow; - /* Collapse this stuff since it is going to be released */ - xaml_ThumbGrid.Visibility = System.Windows.Visibility.Collapsed; - xaml_ContentGrid.Visibility = System.Windows.Visibility.Collapsed; - xaml_VerticalScroll.Visibility = System.Windows.Visibility.Collapsed; - - /* Clear out everything */ - if (m_docPages != null && m_docPages.Count > 0) - m_docPages.Clear(); - if (m_textSelect != null) - m_textSelect.Clear(); - if (m_textset != null) - m_textset.Clear(); - if (m_lineptrs != null && m_lineptrs.Count > 0) - m_lineptrs.Clear(); - if (m_thumbnails != null && m_thumbnails.Count > 0) - m_thumbnails.Clear(); - if (m_textptrs != null && m_textptrs.Count > 0) - m_textptrs.Clear(); - if (m_page_link_list != null && m_page_link_list.Count > 0) - { - m_page_link_list.Clear(); - m_page_link_list = null; - } - if (m_text_list != null && m_text_list.Count > 0) - { - m_text_list.Clear(); - m_text_list = null; - } - if (mu_doc != null) - mu_doc.CleanUp(); - try - { - mu_doc = new mudocument(); - } - catch (OutOfMemoryException e) - { - Console.WriteLine("Memory allocation failed during clean up\n"); - ShowMessage(NotifyType_t.MESS_ERROR, "Out of memory: " + e.Message); - } - mu_doc.mupdfDLLProblemMain += new mudocument.mupdfDLLProblem(muDLL); - status_t result = mu_doc.Initialize(); - mu_doc.mupdfUpdateMain += new mudocument.mupdfCallBackMain(mupdfUpdate); - - if (result != status_t.S_ISOK) - { - Console.WriteLine("Library allocation failed during clean up\n"); - ShowMessage(NotifyType_t.MESS_ERROR, "Library allocation failed!"); - return result; - } - - m_have_thumbs = false; - m_file_open = false; - m_num_pages = -1; - m_links_on = false; - m_doczoom = 1.0; - m_isXPS = false; - m_isImage = false; - //xaml_CancelThumb.IsEnabled = true; - m_currpage = 0; - m_ignorescrollchange = false; - m_document_type = DocumentTypes.UNKNOWN; - EnabletoPDF(); - m_clipboardset = false; - m_doscroll = false; - m_intxtselect = false; - m_textselected = false; - m_currpassword = null; - CloseExtraWindows(false); - ResetScroll(); - m_totalpageheight = 0; - m_AA = GetAA(); - m_origfile = null; - m_initpage = 0; - xaml_Zoomsize.Text = "100"; - m_selectall = false; - return result; - } - - private String GetVersion() - { - Assembly assembly = Assembly.GetExecutingAssembly(); - FileVersionInfo fileVersionInfo = FileVersionInfo.GetVersionInfo(assembly.Location); - String vers = fileVersionInfo.ProductVersion; - String[] parts = vers.Split('.'); - String simple_vers = parts[0] + '.' + parts[1]; - return simple_vers; - } - - /* Initialize from registry */ - private void InitFromRegistry() - { - RegistryKey key = Registry.CurrentUser.CreateSubKey("Software"); - RegistryKey keyA = key.CreateSubKey("Artifex Software"); - String vers = GetVersion(); - RegistryKey keygs = keyA.CreateSubKey("gsview " + vers); - String filepath = null; - Int32 page; - AA_t aa = AA_t.HIGH; - - try - { - filepath = (String)keygs.GetValue("File", null); - aa = (AA_t)keygs.GetValue("AA"); - page = (Int32)keygs.GetValue("Page"); - } - catch - { - return; - } - keygs.Close(); - keyA.Close(); - key.Close(); - - SetAA(aa); - m_AA = aa; - - if (filepath != null && File.Exists(filepath)) - { - m_initpage = page; - ProcessFile(filepath); - } - else - m_initpage = 0; - } - - private void SetRegistry() - { - if (m_currfile == null) - return; - - RegistryKey key = Registry.CurrentUser.CreateSubKey("Software"); - RegistryKey keyA = key.CreateSubKey("Artifex Software"); - String vers = GetVersion(); - RegistryKey keygs = keyA.CreateSubKey("gsview " + vers); - - if (m_origfile != null && (m_document_type == DocumentTypes.PS || - m_document_type == DocumentTypes.EPS)) - { - keygs.SetValue("File", m_origfile, RegistryValueKind.String); - } - else - { - keygs.SetValue("File", m_currfile, RegistryValueKind.String); - } - keygs.SetValue("Page", m_currpage, RegistryValueKind.DWord); - Int32 aa_int = (Int32)m_AA; - keygs.SetValue("AA", aa_int, RegistryValueKind.DWord); - keygs.Close(); - keyA.Close(); - key.Close(); - } - - private void AppClosing(object sender, CancelEventArgs e) - { - if (m_init_done) - SetRegistry(); - } - - private void ShowMessage(NotifyType_t type, String Message) - { - if (type == NotifyType_t.MESS_ERROR) - { - System.Windows.Forms.MessageBox.Show(Message, "Error", - MessageBoxButtons.OK, MessageBoxIcon.Exclamation); - } - else - { - System.Windows.Forms.MessageBox.Show(Message, "Notice", - MessageBoxButtons.OK); - } - } - - private void CloseCommand(object sender, ExecutedRoutedEventArgs e) - { - if (m_init_done) - CloseDoc(); - } - - private void CloseDoc() - { - CleanUp(); - } - - /* Set the page with the new raster information */ - private void UpdatePage(int page_num, Byte[] bitmap, Point ras_size, - Page_Content_t content, double zoom_in, AA_t AA) - { - DocPage doc_page = this.m_docPages[page_num]; - - doc_page.Width = (int)ras_size.X; - doc_page.Height = (int)ras_size.Y; - - doc_page.Content = content; - doc_page.Zoom = zoom_in; - - int stride = doc_page.Width * 4; - doc_page.BitMap = BitmapSource.Create(doc_page.Width, doc_page.Height, - 72, 72, PixelFormats.Pbgra32, BitmapPalettes.Halftone256, bitmap, stride); - doc_page.PageNum = page_num; - doc_page.AA = AA; - - if (content == Page_Content_t.THUMBNAIL) - { - doc_page.Width = (int)(ras_size.X / Constants.SCALE_THUMB); - doc_page.Height = (int)(ras_size.Y / Constants.SCALE_THUMB); - } - } - - private void OpenFileCommand(object sender, ExecutedRoutedEventArgs e) - { - OpenFile(sender, e); - } - - private void OpenFile(object sender, RoutedEventArgs e) - { - if (m_password != null && m_password.IsActive) - m_password.Close(); - - if (m_printcontrol != null && m_printcontrol.IsActive) - m_printcontrol.Close(); - - /* Release the print control regardless of it being opened. - We don't want previous documents pages in the preview */ - m_printcontrol = null; - - if (m_infowindow != null && m_infowindow.IsActive) - m_infowindow.Close(); - - /* Check if gs is currently busy. If it is then don't allow a new - * file to be opened. They can cancel gs with the cancel button if - * they want */ - if (m_ghostscript.GetStatus() != gsStatus.GS_READY) - { - ShowMessage(NotifyType_t.MESS_STATUS, "GS busy. Cancel to open new file."); - return; - } - - if (m_ghostprint != null && m_ghostprint.IsBusy()) - { - ShowMessage(NotifyType_t.MESS_STATUS, "Let printing complete"); - return; - } - - System.Windows.Forms.OpenFileDialog dlg = new System.Windows.Forms.OpenFileDialog(); - dlg.Filter = "Document Files(*.ps;*.eps;*.pdf;*.xps;*.oxps;*.cbz;*.png;*.jpg;*.jpeg)|*.ps;*.eps;*.pdf;*.xps;*.oxps;*.cbz;*.png;*.jpg;*.jpeg|All files (*.*)|*.*"; - dlg.FilterIndex = 1; - if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK) - ProcessFile(dlg.FileName); - } - - private void ProcessFile(String FileName) - { - if (m_file_open) - { - CloseDoc(); - } - /* If we have a ps or eps file then launch the distiller first - * and then we will get a temp pdf file which will be opened by - * mupdf */ - string extension = System.IO.Path.GetExtension(FileName); - /* We are doing this based on the extension but like should do - * it based upon the content */ - switch (extension.ToUpper()) - { - case ".PS": - m_document_type = DocumentTypes.PS; - break; - case ".EPS": - m_document_type = DocumentTypes.EPS; - break; - case ".XPS": - case ".OXPS": - m_document_type = DocumentTypes.XPS; - break; - case ".PDF": - m_document_type = DocumentTypes.PDF; - break; - case ".CBZ": - m_document_type = DocumentTypes.CBZ; - break; - case ".PNG": - m_document_type = DocumentTypes.PNG; - break; - case ".JPG": - m_document_type = DocumentTypes.JPG; - break; - case ".JPEG": - m_document_type = DocumentTypes.JPG; - break; - default: - { - ShowMessage(NotifyType_t.MESS_STATUS, "Unknown File Type"); - return; - } - } - if (extension.ToUpper() == ".PS" || extension.ToUpper() == ".EPS") - { - xaml_DistillProgress.Value = 0; - if (m_ghostscript.DistillPS(FileName, Constants.DEFAULT_GS_RES) == gsStatus.GS_BUSY) - { - ShowMessage(NotifyType_t.MESS_STATUS, "GS currently busy"); - return; - } - xaml_DistillName.Text = "Distilling"; - xaml_CancelDistill.Visibility = System.Windows.Visibility.Visible; - xaml_DistillName.FontWeight = FontWeights.Bold; - xaml_DistillGrid.Visibility = System.Windows.Visibility.Visible; - return; - } - /* Set if this is already xps for printing */ - if (extension.ToUpper() == ".XPS" || extension.ToUpper() == ".OXPS") - m_isXPS = true; - if (extension.ToUpper() == ".CBZ" || extension.ToUpper() == ".PNG" || - extension.ToUpper() == ".JPG") - m_isImage = true; - OpenFile2(FileName); - } - - private void OpenFile2(String File) - { - m_currfile = File; - xaml_OpenProgressGrid.Visibility = System.Windows.Visibility.Visible; - xaml_openfilestatus.Text = "Opening File"; - /* The file open can take a fair amount of time. So that we can show - * an indeterminate progress bar while opening, go ahead an do this - * on a separate thread */ - OpenFileBG(); - } - - private void OpenWork(object sender, DoWorkEventArgs e) - { - BackgroundWorker worker = sender as BackgroundWorker; - - status_t code = mu_doc.OpenFile(m_currfile); - worker.ReportProgress(100, code); - } - - private void OpenProgress(object sender, ProgressChangedEventArgs e) - { - status_t result = (status_t)(e.UserState); - - if (result == status_t.S_ISOK) - { - /* Check if we need a password */ - if (mu_doc.RequiresPassword()) - { - xaml_OpenProgressGrid.Visibility = System.Windows.Visibility.Collapsed; - GetPassword(); - } - else - StartViewer(); - } - else - { - m_currfile = null; - } - } - - private void OpenFileBG() - { - try - { - m_openfile = new BackgroundWorker(); - m_openfile.WorkerReportsProgress = true; - m_openfile.WorkerSupportsCancellation = false; - m_openfile.DoWork += new DoWorkEventHandler(OpenWork); - m_openfile.ProgressChanged += new ProgressChangedEventHandler(OpenProgress); - m_openfile.RunWorkerAsync(); - } - catch (OutOfMemoryException e) - { - Console.WriteLine("Memory allocation failed during opening\n"); - ShowMessage(NotifyType_t.MESS_ERROR, "Out of memory: " + e.Message); - } - } - - private void SetPageAnnot(int page_num, Annotate_t render_result) - { - if (m_docPages[page_num].Annotate == Annotate_t.UNKNOWN || - m_docPages[page_num].Annotate == Annotate_t.COMPUTING) - { - if (render_result == Annotate_t.NO_ANNOTATE) - m_docPages[page_num].Annotate = Annotate_t.NO_ANNOTATE; - else - { - if (m_showannot) - m_docPages[page_num].Annotate = Annotate_t.ANNOTATE_VISIBLE; - else - m_docPages[page_num].Annotate = Annotate_t.ANNOTATE_HIDDEN; - } - } - else - { - if (m_docPages[page_num].Annotate != Annotate_t.NO_ANNOTATE) - { - if (m_showannot) - m_docPages[page_num].Annotate = Annotate_t.ANNOTATE_VISIBLE; - else - m_docPages[page_num].Annotate = Annotate_t.ANNOTATE_HIDDEN; - } - } - } - - private void InitialRenderWork(object sender, DoWorkEventArgs e) - { - BackgroundWorker worker = sender as BackgroundWorker; - int look_ahead = Math.Min(m_num_pages, Constants.INIT_LOOK_AHEAD); - - /* Do the first few full res pages */ - for (int k = 0; k < look_ahead; k++) - { - if (m_num_pages > k) - { - Point ras_size; - double scale_factor = 1.0; - Byte[] bitmap; - BlocksText charlist; - status_t code; - Annotate_t annot; - - if (ComputePageSize(k, scale_factor, out ras_size) == status_t.S_ISOK) - { - try - { - bitmap = new byte[(int)ras_size.X * (int)ras_size.Y * 4]; - - /* Synchronous call on our background thread */ - code = (status_t)mu_doc.RenderPage(k, bitmap, (int)ras_size.X, - (int)ras_size.Y, scale_factor, false, true, - !(m_textset[k]), out charlist, m_showannot, out annot); - } - catch (OutOfMemoryException em) - { - Console.WriteLine("Memory allocation failed init page " + k + em.Message + "\n"); - break; - } - /* create new page if we rendered ok. set ui value with - * progress call back, pass page number, charlist and bitmap */ - if (code == status_t.S_ISOK) - { - pageprogress_t page_prog = new pageprogress_t(); - page_prog.bitmap = bitmap; - page_prog.charlist = charlist; - page_prog.pagenum = k; - page_prog.size = ras_size; - page_prog.annot = annot; - worker.ReportProgress(100, page_prog); - } - } - } - } - } - - private void InitialRenderProgressChanged(object sender, ProgressChangedEventArgs e) - { - pageprogress_t result = (pageprogress_t)(e.UserState); - int k = result.pagenum; - - m_textset[k] = true; - m_textptrs[k] = result.charlist; - m_docPages[k].TextBlocks = result.charlist; - UpdatePage(k, result.bitmap, result.size, Page_Content_t.FULL_RESOLUTION, 1.0, m_AA); - m_docPages[k].NativeHeight = (int) result.size.Y; - m_docPages[k].NativeWidth = (int)result.size.X; - SetPageAnnot(k, result.annot); - } - - private void InitialRenderCompleted(object sender, RunWorkerCompletedEventArgs e) - { - m_init_done = true; - m_currpage = 0; - RenderThumbs(); - m_file_open = true; - xaml_BackPage.Opacity = 1; - xaml_Contents.Opacity = 1; - xaml_currPage.Opacity = 1; - xaml_ForwardPage.Opacity = 1; - xaml_Links.Opacity = 1; - xaml_Print.Opacity = 1; - xaml_SavePDF.Opacity = 1; - xaml_Search.Opacity = 1; - xaml_Thumbs.Opacity = 1; - xaml_TotalPages.Opacity = 1; - xaml_zoomIn.Opacity = 1; - xaml_zoomOut.Opacity = 1; - xaml_Zoomsize.Opacity = 1; - xaml_ExpandFill.Opacity = 1; - xaml_ContScrollFill.Opacity = 1; - xaml_ActualSize.Opacity = 1; - xaml_Zoomsize.IsEnabled = true; - xaml_currPage.IsEnabled = true; - xaml_TotalPages.Text = "/ " + m_num_pages.ToString(); - xaml_currPage.Text = "1"; - xaml_ZoomSlider.Opacity = 1.0; - xaml_ZoomSlider.IsEnabled = true; - xaml_closefile.IsEnabled = true; - xaml_saveas.IsEnabled = true; - xaml_showinfo.IsEnabled = true; - xaml_extractselection.IsEnabled = true; - xaml_conversions.IsEnabled = true; - xaml_gsmessage.IsEnabled = true; - xaml_print_menu.IsEnabled = true; - xaml_view.IsEnabled = true; - xaml_edit.IsEnabled = true; - if (m_isXPS || m_isImage) - DisabletoPDF(); - if (m_isImage) - { - xaml_Print.IsEnabled = false; - xaml_print_menu.IsEnabled = false; - xaml_Print.Opacity = 0.5; - xaml_print_menu.Opacity = 0.5; - } - else - { - xaml_Print.IsEnabled = true; - xaml_print_menu.IsEnabled = true; - xaml_Print.Opacity = 1.0; - xaml_print_menu.Opacity = 1.0; - } - xaml_OpenProgressGrid.Visibility = System.Windows.Visibility.Collapsed; - xaml_VerticalScroll.Visibility = System.Windows.Visibility.Visible; - xaml_VerticalScroll.Value = 0; - } - - private void InitialRenderBG() - { - int look_ahead = Math.Min(Constants.INIT_LOOK_AHEAD, m_num_pages); - m_currpage = 0; - m_thumbnails.Capacity = m_num_pages; - - for (int k = 0; k < Constants.INIT_LOOK_AHEAD; k++) - { - m_docPages.Add(InitDocPage()); - m_docPages[k].PageNum = k; - m_textptrs.Add(new BlocksText()); - m_lineptrs.Add(new LinesText()); - m_textset.Add(false); - } - var dummy = InitDocPage(); - for (int k = Constants.INIT_LOOK_AHEAD; k < m_num_pages; k++) - { - m_docPages.Add(dummy); - m_textptrs.Add(new BlocksText()); - m_lineptrs.Add(new LinesText()); - m_textset.Add(false); - } - - xaml_PageList.ItemsSource = m_docPages; - - try - { - m_initrender = new BackgroundWorker(); - m_initrender.WorkerReportsProgress = true; - m_initrender.WorkerSupportsCancellation = false; - m_initrender.DoWork += new DoWorkEventHandler(InitialRenderWork); - m_initrender.RunWorkerCompleted += new RunWorkerCompletedEventHandler(InitialRenderCompleted); - m_initrender.ProgressChanged += new ProgressChangedEventHandler(InitialRenderProgressChanged); - m_initrender.RunWorkerAsync(); - } - catch (OutOfMemoryException e) - { - Console.WriteLine("Memory allocation failed during initial render\n"); - ShowMessage(NotifyType_t.MESS_ERROR, "Out of memory: " + e.Message); - } - } - private void StartViewer() - { - m_num_pages = mu_doc.GetPageCount(); - - if (m_num_pages == 0) - { - xaml_OpenProgressGrid.Visibility = System.Windows.Visibility.Collapsed; - CleanUp(); - ShowMessage(NotifyType_t.MESS_ERROR, m_currfile + " is corrupted"); - } - else - { - xaml_openfilestatus.Text = "Initial Page Rendering"; - xaml_openfilestatus.UpdateLayout(); - InitialRenderBG(); - } - } - - private status_t ComputePageSize(int page_num, double scale_factor, - out Point render_size) - { - Point renpageSize = new Point(); - - status_t code = (status_t)mu_doc.GetPageSize(page_num, out render_size); - if (code != status_t.S_ISOK) - return code; - - renpageSize.X = (render_size.X * scale_factor); - renpageSize.Y = (render_size.Y * scale_factor); - - render_size = renpageSize; - - return status_t.S_ISOK; - } - - private DocPage InitDocPage() - { - DocPage doc_page = new DocPage(); - - doc_page.BitMap = null; - doc_page.Height = Constants.BLANK_HEIGHT; - doc_page.Width = Constants.BLANK_WIDTH; - doc_page.NativeHeight = Constants.BLANK_HEIGHT; - doc_page.NativeWidth = Constants.BLANK_WIDTH; - doc_page.Content = Page_Content_t.NOTSET; - doc_page.TextBox = null; - doc_page.LinkBox = null; - doc_page.SelHeight = 0; - doc_page.SelWidth = 0; - doc_page.SelX = 0; - doc_page.SelY = 0; - return doc_page; - } - - #region Navigation - private void OnBackPageClick(object sender, RoutedEventArgs e) - { - if (m_currpage == 0 || !m_init_done) return; - m_ignorescrollchange = true; - RenderRange(m_currpage - 1, true, zoom_t.NO_ZOOM, 0); - } - - private void OnForwardPageClick(object sender, RoutedEventArgs e) - { - if (m_currpage == m_num_pages - 1 || !m_init_done) return; - m_ignorescrollchange = true; - RenderRange(m_currpage + 1, true, zoom_t.NO_ZOOM, 0); - } - - private void PageEnterClicked(object sender, System.Windows.Input.KeyEventArgs e) - { - if (e.Key == Key.Return) - { - e.Handled = true; - var desired_page = xaml_currPage.Text; - try - { - int page = System.Convert.ToInt32(desired_page); - if (page > 0 && page < (m_num_pages + 1)) - { - m_ignorescrollchange = true; - RenderRange(page - 1, true, zoom_t.NO_ZOOM, 0); - } - } - catch (FormatException e1) - { - Console.WriteLine("String is not a sequence of digits."); - } - catch (OverflowException e2) - { - Console.WriteLine("The number cannot fit in an Int32."); - } - } - } - - private void OnKeyDownHandler(object sender, System.Windows.Input.KeyEventArgs e) - { - switch (e.Key) - { - case Key.Left: - case Key.PageUp: - if (m_currpage == 0 || !m_init_done) - return; - m_ignorescrollchange = true; - RenderRange(m_currpage - 1, true, zoom_t.NO_ZOOM, 0); - e.Handled = true; - break; - - case Key.Right: - case Key.PageDown: - if (m_currpage == m_num_pages - 1 || !m_init_done) - return; - m_ignorescrollchange = true; - RenderRange(m_currpage + 1, true, zoom_t.NO_ZOOM, 0); - e.Handled = true; - break; - - case Key.Up: - if (!m_init_done) - return; - e.Handled = true; - OffsetScroll(-Constants.VERT_SCROLL_STEP * m_doczoom); - break; - - case Key.Down: - if (!m_init_done) - return; - e.Handled = true; - OffsetScroll(Constants.VERT_SCROLL_STEP * m_doczoom); - break; - } - } - #endregion Navigation - - private void CancelLoadClick(object sender, RoutedEventArgs e) - { - /* Cancel during thumbnail loading. Deactivate the button - * and cancel the thumbnail rendering */ - if (m_thumbworker != null) - m_thumbworker.CancelAsync(); - //xaml_CancelThumb.IsEnabled = false; - } - - private void ToggleThumbs(object sender, RoutedEventArgs e) - { - if (m_have_thumbs) - { - if (xaml_ThumbGrid.Visibility == System.Windows.Visibility.Collapsed) - { - xaml_ThumbGrid.Visibility = System.Windows.Visibility.Visible; - } - else - { - xaml_ThumbGrid.Visibility = System.Windows.Visibility.Collapsed; - } - } - } - - private void ToggleContents(object sender, RoutedEventArgs e) - { - if (xaml_ContentGrid.Visibility == System.Windows.Visibility.Visible) - { - xaml_ContentGrid.Visibility = System.Windows.Visibility.Collapsed; - return; - } - - if (m_num_pages < 0) - return; - - if (xaml_ContentList.Items.IsEmpty) - { - int size_content = mu_doc.ComputeContents(); - if (size_content == 0) - return; - xaml_ContentList.ItemsSource = mu_doc.contents; - } - xaml_ContentGrid.Visibility = System.Windows.Visibility.Visible; - } - - private void ThumbSelected(object sender, MouseButtonEventArgs e) - { - var item = ((FrameworkElement)e.OriginalSource).DataContext as DocPage; - - if (item != null) - { - if (item.PageNum < 0) - return; - RenderRange(item.PageNum, true, zoom_t.NO_ZOOM, 0); - } - } - - private void ContentSelected(object sender, MouseButtonEventArgs e) - { - var item = ((FrameworkElement)e.OriginalSource).DataContext as ContentItem; - if (item != null && item.Page < m_num_pages) - { - int page = m_docPages[item.Page].PageNum; - if (page >= 0 && page < m_num_pages) - RenderRange(page, true, zoom_t.NO_ZOOM, 0); - } - } - - /* We need to avoid rendering due to size changes */ - private void ListViewScrollChanged(object sender, ScrollChangedEventArgs e) - { - /* This makes sure we dont call render range a second time due to - * page advances */ - int first_item = -1; - int second_item = -1; - //Console.WriteLine("***************************************/n"); - //Console.WriteLine("VerticalChange = " + e.VerticalChange + "/n"); - //Console.WriteLine("ExtentHeightChange = " + e.ExtentHeightChange + "/n"); - //Console.WriteLine("ExtentWidthChange = " + e.ExtentWidthChange + "/n"); - //Console.WriteLine("HorizontalChange = " + e.HorizontalChange + "/n"); - //Console.WriteLine("ViewportHeightChange = " + e.ViewportHeightChange + "/n"); - //Console.WriteLine("ViewportWidthChange = " + e.ViewportWidthChange + "/n"); - //Console.WriteLine("ExtentHeight = " + e.ExtentHeight + "/n"); - //Console.WriteLine("ViewportHeight = " + e.ViewportHeight + "/n"); - //Console.WriteLine("VerticalOffset = " + e.VerticalOffset + "/n"); - //Console.WriteLine("***************************************/n"); - if (m_ignorescrollchange == true) - { - m_ignorescrollchange = false; - return; - } - if (!m_init_done) - return; - if (e.VerticalChange == 0) - return; - if (m_num_pages == 1) - return; - - /* From current page go forward and backward checking if pages are - * visible */ - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - if (viewer != null) - { - double bottom = this.ActualHeight; - /* first going forward */ - for (int kk = m_currpage + 1; kk < m_num_pages; kk++) - { - UIElement uiElement = (UIElement)xaml_PageList.ItemContainerGenerator.ContainerFromIndex(kk); - double y_top = uiElement.TranslatePoint(new System.Windows.Point(0, 0), xaml_PageList).Y; - double y_bottom = uiElement.TranslatePoint(new System.Windows.Point(0, m_docPages[kk].Height), xaml_PageList).Y; - /* Test if this and all further pages are outside window */ - if (y_top > bottom) - break; - /* Test if page is not even yet in window */ - if (y_bottom > 0) - { - if (!(m_dispatcherTimer != null && m_dispatcherTimer.IsEnabled == true)) - { - /* In this case grab the first one that we find */ - if (second_item == -1) - second_item = kk; - } - } - } - - /* and now going backward */ - for (int kk = m_currpage; kk > -1; kk--) - { - UIElement uiElement = (UIElement)xaml_PageList.ItemContainerGenerator.ContainerFromIndex(kk); - double y_top = uiElement.TranslatePoint(new System.Windows.Point(0, 0), xaml_PageList).Y; - double y_bottom = uiElement.TranslatePoint(new System.Windows.Point(0, m_docPages[kk].Height), xaml_PageList).Y; - /* Test if this and all further pages are outside window */ - if (y_bottom < 0) - break; - if (y_top < bottom) - if (!(m_dispatcherTimer != null && m_dispatcherTimer.IsEnabled == true)) - first_item = kk; - } - e.Handled = true; - if (first_item != -1) - second_item = first_item; - /* Finish */ - if (m_ScrolledChanged) - { - m_ScrolledChanged = false; - } - else - { - /* We have to update the vertical scroll position */ - double perc = (e.VerticalOffset) / (e.ExtentHeight - e.ViewportHeight); - xaml_VerticalScroll.Value = perc * xaml_VerticalScroll.Maximum; - } - if (second_item < 0) - second_item = 0; - RenderRange(second_item, false, zoom_t.NO_ZOOM, 0); - } - } - - /* ScrollIntoView will not scroll to top on its own. If item is already - * in view it just sits there */ - private void ScrollPageToTop(int k, double offset, bool from_scroller) - { - if (m_num_pages == 1) - return; - /* Get access to the scrollviewer */ - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - if (viewer != null) - { - UIElement uiElement = (UIElement) xaml_PageList.ItemContainerGenerator.ContainerFromIndex(k); - double y = uiElement.TranslatePoint(new System.Windows.Point(0, offset), xaml_PageList).Y; - double curr_value = viewer.VerticalOffset; - viewer.ScrollToVerticalOffset(curr_value + y); - - if (!from_scroller) - { - double perc = (double) k / (double) ( m_num_pages - 1); - xaml_VerticalScroll.Value = perc * xaml_VerticalScroll.Maximum; - } - } - } - - /* Scroll to offset */ - private void OffsetScroll(double offset) - { - if (m_num_pages == 1) - return; - /* Get access to the scrollviewer */ - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - if (viewer != null) - { - double curr_value = viewer.VerticalOffset; - AdjustScrollPercent(offset / viewer.ScrollableHeight); - viewer.ScrollToVerticalOffset(curr_value + offset); - } - } - - /* Scroll to offset */ - private void OffsetScrollPercent(double percent) - { - /* Get access to the scrollviewer */ - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - if (viewer != null) - { - double curr_value = viewer.VerticalOffset; - if (curr_value < 0 || curr_value > viewer.MaxHeight) - return; - var extentheight = viewer.ExtentHeight - viewer.ViewportHeight; - - var pos = extentheight * percent; - viewer.ScrollToVerticalOffset(pos); - } - } - - /* Render +/- the look ahead from where we are if blank page is present */ - async private void RenderRange(int new_page, bool scrollto, zoom_t newzoom, double zoom_offset) - { - /* Need to figure out what pages are going to be visible */ - double bottom = this.ActualHeight; - bool done = false; - int final_page = new_page; - double count = -zoom_offset; - int offset = -1; - bool scrollbottom = false; - - if (newzoom != zoom_t.NO_ZOOM) - offset = 0; - - if (m_thumbnails.Count < m_num_pages) - final_page = final_page + 1; - else - { - while (!done && final_page >= 0 && final_page < m_num_pages) - { - count = count + m_thumbnails[final_page].NativeHeight * m_doczoom; - final_page = final_page + 1; - if (final_page == m_num_pages || count > bottom) - done = true; - } - /* We have zoomed out to a point where the offset will not stay - * in its current spot. Figure out where we need to be */ - final_page = final_page - 1; - if (newzoom == zoom_t.ZOOM_OUT && count < bottom) - { - int curr_page = new_page - 1; - while (true) - { - if (curr_page < 0) - break; - count = count + m_thumbnails[curr_page].NativeHeight * m_doczoom; - if (count > bottom) - break; - curr_page = curr_page - 1; - } - new_page = curr_page; - if (new_page < 0) - new_page = 0; - scrollbottom = true; - } - } - - for (int k = new_page + offset; k <= final_page + 1; k++) - { - if (k >= 0 && k < m_num_pages) - { - /* Check if page is already rendered */ - var doc = m_docPages[k]; - if (doc.Content != Page_Content_t.FULL_RESOLUTION || - doc.Zoom != m_doczoom || m_AA != doc.AA || - (doc.Annotate == Annotate_t.UNKNOWN && m_showannot) || - (doc.Annotate == Annotate_t.ANNOTATE_VISIBLE && !m_showannot) || - (doc.Annotate == Annotate_t.ANNOTATE_HIDDEN && m_showannot)) - { - Point ras_size; - double scale_factor = m_doczoom; - /* To avoid multiple page renderings on top of one - * another with scroll changes mark this as being - * full resolution */ - m_docPages[k].Content = Page_Content_t.FULL_RESOLUTION; - /* Avoid launching another thread just because we don't - * know the annotation condition for this page */ - m_docPages[k].Annotate = Annotate_t.COMPUTING; - if (ComputePageSize(k, scale_factor, out ras_size) == status_t.S_ISOK) - { - try - { - Byte[] bitmap = new byte[(int)ras_size.X * (int)ras_size.Y * 4]; - BlocksText charlist = null; - Annotate_t annot = Annotate_t.UNKNOWN; - m_docPages[k].NativeWidth = (int)(ras_size.X / scale_factor); - m_docPages[k].NativeHeight = (int)(ras_size.Y / scale_factor); - - Task<int> ren_task = - new Task<int>(() => mu_doc.RenderPage(k, bitmap, - (int)ras_size.X, (int)ras_size.Y, scale_factor, - false, true, !(m_textset[k]), out charlist, m_showannot, - out annot)); - ren_task.Start(); - await ren_task.ContinueWith((antecedent) => - { - status_t code = (status_t)ren_task.Result; - if (code == status_t.S_ISOK) - { - SetPageAnnot(k, annot); - if (m_docPages[k].TextBox != null) - ScaleTextBox(k); - if (m_links_on && m_page_link_list != null) - { - m_docPages[k].LinkBox = m_page_link_list[k]; - if (m_docPages[k].LinkBox != null) - ScaleLinkBox(k); - } - else - { - m_docPages[k].LinkBox = null; - } - if (!(m_textset[k]) && charlist != null) - { - m_textptrs[k] = charlist; - if (scale_factor != 1.0) - ScaleTextBlocks(k, scale_factor); - m_docPages[k].TextBlocks = m_textptrs[k]; - m_textset[k] = true; - if (m_selectall) - { - int num_blocks = m_docPages[k].TextBlocks.Count; - for (int jj = 0; jj < num_blocks; jj++) - { - m_docPages[k].TextBlocks[jj].Color = m_textselectcolor; - } - } - } - else - { - /* We had to rerender due to scale */ - if (m_textptrs[k] != null) - { - ScaleTextBlocks(k, scale_factor); - m_docPages[k].TextBlocks = m_textptrs[k]; - } - if (m_lineptrs[k] != null) - { - ScaleTextLines(k, scale_factor); - m_docPages[k].SelectedLines = m_lineptrs[k]; - } - } - /* This needs to be handled here to reduce - * flashing effects */ - if (newzoom != zoom_t.NO_ZOOM && k == new_page) - { - m_ignorescrollchange = true; - UpdatePageSizes(); - xaml_VerticalScroll.Maximum = m_totalpageheight * m_doczoom + 4 * m_num_pages; - if (!scrollbottom) - ScrollPageToTop(new_page, zoom_offset, false); - } - UpdatePage(k, bitmap, ras_size, - Page_Content_t.FULL_RESOLUTION, m_doczoom, m_AA); - if (k == new_page && scrollto && new_page != m_currpage) - { - m_doscroll = true; - ScrollPageToTop(k, 0, false); - } - } - }, TaskScheduler.FromCurrentSynchronizationContext()); - } - catch (OutOfMemoryException e) - { - Console.WriteLine("Memory allocation failed page " + k + "\n"); - ShowMessage(NotifyType_t.MESS_ERROR, "Out of memory: " + e.Message); - } - } - } - else - { - /* We did not have to render the page but we may need to - * scroll to it */ - if (k == new_page && scrollto && new_page != m_currpage) - { - m_ignorescrollchange = true; - ScrollPageToTop(k, 0, false); - } - } - } - } - /* Release old range and set new page */ - //ReleasePages(m_currpage, new_page - 1, final_page + 1); - m_currpage = new_page; - xaml_currPage.Text = (m_currpage + 1).ToString(); - } - - /* Avoids the next page jumping into view when touched by mouse. See xaml code */ - private void AvoidScrollIntoView(object sender, RequestBringIntoViewEventArgs e) - { - if (!m_doscroll) - e.Handled = true; - else - m_doscroll = false; - } - - private void ReleasePages(int old_page, int new_page, int final_page) - { - if (old_page == new_page) return; - /* To keep from having memory issue reset the page back to - the thumb if we are done rendering the thumbnails */ - for (int k = 0; k < m_num_pages; k++) - { - if (k < new_page || k > final_page) - { - if (k >= 0 && k < m_num_pages) - { - SetThumb(k); - } - } - } - } - - /* Return this page from a full res image to the thumb image */ - private void SetThumb(int page_num) - { - /* See what is there now */ - var doc_page = m_docPages[page_num]; - if (doc_page.Content == Page_Content_t.THUMBNAIL && - doc_page.Zoom == m_doczoom) return; - - if (m_thumbnails.Count > page_num) - { - doc_page.Content = Page_Content_t.THUMBNAIL; - doc_page.Zoom = m_doczoom; - - doc_page.BitMap = m_thumbnails[page_num].BitMap; - doc_page.Width = (int)(m_doczoom * doc_page.BitMap.PixelWidth / Constants.SCALE_THUMB); - doc_page.Height = (int)(m_doczoom * doc_page.BitMap.PixelHeight / Constants.SCALE_THUMB); - doc_page.PageNum = page_num; - doc_page.LinkBox = null; - doc_page.TextBox = null; - /* No need to refresh unless it just occurs during other stuff - * we just want to make sure we can release the bitmaps */ - //doc_page.PageRefresh(); - } - } - - private void gsDLL(object gsObject, String mess) - { - ShowMessage(NotifyType_t.MESS_STATUS, mess); - } - - /* Catastrophic */ - private void muDLL(object gsObject, String mess) - { - ShowMessage(NotifyType_t.MESS_ERROR, mess); - /* Disable even the ability to open a file */ - xaml_open.Opacity = 0.5; - xaml_open.IsEnabled = false; - xaml_file.Opacity = 0.5; - xaml_file.IsEnabled = false; - /* And to drag - drop or registry start up */ - xaml_PageList.RemoveHandler(Grid.DragOverEvent, new System.Windows.DragEventHandler(Grid_DragOver)); - xaml_PageList.RemoveHandler(Grid.DropEvent, new System.Windows.DragEventHandler(Grid_Drop)); - m_regstartup = false; - } - - private void gsIO(object gsObject, String mess, int len) - { - m_gsoutput.Update(mess, len); - } - - private void mupdfUpdate(object muObject, muPDFEventArgs asyncInformation) - { - if (asyncInformation.Completed) - { - xaml_MuPDFProgress.Value = 100; - xaml_MuPDFGrid.Visibility = System.Windows.Visibility.Collapsed; - if (asyncInformation.Params.result == GS_Result_t.gsFAILED) - { - ShowMessage(NotifyType_t.MESS_STATUS, "MuPDF failed to convert document"); - } - MuPDFResult(asyncInformation.Params); - } - else - { - this.xaml_MuPDFProgress.Value = asyncInformation.Progress; - } - } - - /* MuPDF Result*/ - public void MuPDFResult(ConvertParams_t gs_result) - { - if (gs_result.result == GS_Result_t.gsCANCELLED) - { - xaml_MuPDFGrid.Visibility = System.Windows.Visibility.Collapsed; - return; - } - if (gs_result.result == GS_Result_t.gsFAILED) - { - xaml_MuPDFGrid.Visibility = System.Windows.Visibility.Collapsed; - ShowMessage(NotifyType_t.MESS_STATUS, "MuPDF Failed Conversion"); - return; - } - ShowMessage(NotifyType_t.MESS_STATUS, "MuPDF Completed Conversion"); - } - - private void gsProgress(object gsObject, gsEventArgs asyncInformation) - { - if (asyncInformation.Completed) - { - xaml_DistillProgress.Value = 100; - xaml_DistillGrid.Visibility = System.Windows.Visibility.Collapsed; - if (asyncInformation.Params.result == GS_Result_t.gsFAILED) - { - switch (asyncInformation.Params.task) - { - case GS_Task_t.CREATE_XPS: - ShowMessage(NotifyType_t.MESS_STATUS, "Ghostscript failed to create XPS"); - break; - - case GS_Task_t.PS_DISTILL: - ShowMessage(NotifyType_t.MESS_STATUS, "Ghostscript failed to distill PS"); - break; - - case GS_Task_t.SAVE_RESULT: - ShowMessage(NotifyType_t.MESS_STATUS, "Ghostscript failed to convert document"); - break; - } - return; - } - GSResult(asyncInformation.Params); - } - else - { - this.xaml_DistillProgress.Value = asyncInformation.Progress; - } - } - - /* GS Result*/ - public void GSResult(gsParams_t gs_result) - { - if (gs_result.result == GS_Result_t.gsCANCELLED) - { - xaml_DistillGrid.Visibility = System.Windows.Visibility.Collapsed; - return; - } - if (gs_result.result == GS_Result_t.gsFAILED) - { - xaml_DistillGrid.Visibility = System.Windows.Visibility.Collapsed; - ShowMessage(NotifyType_t.MESS_STATUS, "GS Failed Conversion"); - return; - } - switch (gs_result.task) - { - case GS_Task_t.CREATE_XPS: - xaml_DistillGrid.Visibility = System.Windows.Visibility.Collapsed; - PrintXPS(gs_result.outputfile); - break; - - case GS_Task_t.PS_DISTILL: - xaml_DistillGrid.Visibility = System.Windows.Visibility.Collapsed; - m_origfile = gs_result.inputfile; - OpenFile2(gs_result.outputfile); - break; - - case GS_Task_t.SAVE_RESULT: - ShowMessage(NotifyType_t.MESS_STATUS, "GS Completed Conversion"); - break; - } - } - - private void PrintCommand(object sender, ExecutedRoutedEventArgs e) - { - Print(sender, e); - } - - /* Printing is achieved using xpswrite device in ghostscript and - * pushing that file through the XPS print queue */ - private void Print(object sender, RoutedEventArgs e) - { - if (!m_file_open) - return; - - if (m_printcontrol == null) - { - m_printcontrol = new PrintControl(m_num_pages, m_currpage); - m_printcontrol.PrintDiagUpdatePreview += new PrintControl.PrintDiagCallBackPreview(PrintDiagUpdatePreview); - m_printcontrol.PrintDiagPrint += new PrintControl.PrintDiagCallBackPrint(PrintDiagPrint); - m_printcontrol.PrintDLLProblemMain += new PrintControl.PrintDLLProblem(gsDLL); - m_printcontrol.Activate(); - m_printcontrol.Show(); /* Makes it modal */ - PrintDiagEventArgs args = new PrintDiagEventArgs(0); - PrintDiagUpdatePreview(null, args); - } - else - m_printcontrol.Show(); - return; - } - - private void PrintXPS(String file) - { - gsprint ghostprint = new gsprint(); - - /* We have to create the XPS document on a different thread */ - XpsDocument xpsDocument = new XpsDocument(file, FileAccess.Read); - FixedDocumentSequence fixedDocSeq = xpsDocument.GetFixedDocumentSequence(); - System.Windows.Size temp = new Size(200, 200); - fixedDocSeq.DocumentPaginator.PageSize = temp; - - PrintQueue printq = m_printcontrol.m_selectedPrinter; - - m_ghostprint = ghostprint; - xaml_PrintGrid.Visibility = System.Windows.Visibility.Visible; - - xaml_PrintProgress.Value = 0; - - ghostprint.Print(printq, fixedDocSeq, m_printcontrol); - } - - private void PrintProgress(object printHelper, gsPrintEventArgs Information) - { - if (Information.Status != PrintStatus_t.PRINT_BUSY) - { - xaml_PrintProgress.Value = 100; - xaml_PrintGrid.Visibility = System.Windows.Visibility.Collapsed; - } - else - { - xaml_PrintProgress.Value = - 100.0 * (double)Information.Page / (double)m_num_pages; - } - } - - private void CancelMuPDFClick(object sender, RoutedEventArgs e) - { - xaml_CancelMuPDF.IsEnabled = false; - mu_doc.Cancel(); - } - - private void CancelDistillClick(object sender, RoutedEventArgs e) - { - xaml_CancelDistill.IsEnabled = false; - if (m_ghostscript != null) - m_ghostscript.Cancel(); - } - - private void CancelPrintClick(object sender, RoutedEventArgs e) - { - m_ghostprint.CancelAsync(); - } - - private void ShowGSMessage(object sender, RoutedEventArgs e) - { - m_gsoutput.Show(); - } - - private void ConvertClick(object sender, RoutedEventArgs e) - { - if (m_ghostscript.GetStatus() != gsStatus.GS_READY) - { - ShowMessage(NotifyType_t.MESS_STATUS, "GS busy"); - return; - } - - if (m_convertwin == null || !m_convertwin.IsActive) - { - m_convertwin = new Convert(m_num_pages); - m_convertwin.ConvertUpdateMain += new Convert.ConvertCallBackMain(ConvertReturn); - m_convertwin.Activate(); - m_convertwin.Show(); - } - } - - private void ConvertReturn(object sender) - { - Device device = (Device)m_convertwin.xaml_DeviceList.SelectedItem; - if (device == null) - { - ShowMessage(NotifyType_t.MESS_STATUS, "No Device Selected"); - return; - } - - if (m_ghostscript.GetStatus() != gsStatus.GS_READY && - !device.MuPDFDevice) - { - ShowMessage(NotifyType_t.MESS_STATUS, "GS busy"); - return; - } - - System.Collections.IList pages = m_convertwin.xaml_PageList.SelectedItems; - System.Collections.IList pages_selected = null; - String options = m_convertwin.xaml_options.Text; - int resolution = 72; - bool multi_page_needed = false; - int first_page = -1; - int last_page = -1; - - if (pages.Count == 0) - { - ShowMessage(NotifyType_t.MESS_STATUS, "No Pages Selected"); - return; - } - - /* Get a filename */ - System.Windows.Forms.SaveFileDialog dlg = new System.Windows.Forms.SaveFileDialog(); - dlg.Filter = "All files (*.*)|*.*"; - dlg.FilterIndex = 1; - if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK) - { - if (device.MuPDFDevice) - { - /* Allow only one of these as a time */ - pages_selected = pages; - var val = m_convertwin.xaml_resolution.Text; - if (val.Length > 0) - { - bool isok = true; - int num = resolution; - try - { - num = System.Convert.ToInt32(val); - } - catch (FormatException e) - { - isok = false; - Console.WriteLine("Input string is not a sequence of digits."); - } - catch (OverflowException e) - { - isok = false; - Console.WriteLine("The number cannot fit in an Int32."); - } - if (isok && num > 0) - resolution = num; - } - - if (mu_doc.ConvertSave(device.DeviceType, dlg.FileName, - pages.Count, pages_selected, resolution) == gsStatus.GS_BUSY) - { - ShowMessage(NotifyType_t.MESS_STATUS, "MuPDF conversion busy"); - return; - } - xaml_CancelMuPDF.Visibility = System.Windows.Visibility.Visible; - xaml_MuPDFGrid.Visibility = System.Windows.Visibility.Visible; - } - else - { - if (!device.SupportsMultiPage && m_num_pages > 1) - multi_page_needed = true; - - if (pages.Count != m_num_pages) - { - /* We may need to go through page by page. Determine if - * selection of pages is continuous. This is done by - * looking at the first one in the list and the last one - * in the list and checking the length */ - SelectPage lastpage = (SelectPage)pages[pages.Count - 1]; - SelectPage firstpage = (SelectPage)pages[0]; - int temp = lastpage.Page - firstpage.Page + 1; - if (temp == pages.Count) - { - /* Pages are contiguous. Add first and last page - * as command line option */ - options = options + " -dFirstPage=" + firstpage.Page + " -dLastPage=" + lastpage.Page; - first_page = firstpage.Page; - last_page = lastpage.Page; - } - else - { - /* Pages are not continguous. We will do this page - * by page.*/ - pages_selected = pages; - multi_page_needed = true; /* need to put in separate outputs */ - } - } - xaml_DistillProgress.Value = 0; - if (m_ghostscript.Convert(m_currfile, options, - device.DeviceName, dlg.FileName, pages.Count, resolution, - multi_page_needed, pages_selected, first_page, last_page, - null, null) == gsStatus.GS_BUSY) - { - ShowMessage(NotifyType_t.MESS_STATUS, "GS busy"); - return; - } - xaml_DistillName.Text = "GS Converting Document"; - xaml_CancelDistill.Visibility = System.Windows.Visibility.Collapsed; - xaml_DistillName.FontWeight = FontWeights.Bold; - xaml_DistillGrid.Visibility = System.Windows.Visibility.Visible; - } - m_convertwin.Close(); - } - return; - } - - private void ExtractPages(object sender, RoutedEventArgs e) - { - if (!m_init_done || m_isXPS || m_isImage) - return; - - if (m_extractwin == null || !m_extractwin.IsActive) - { - m_extractwin = new PageExtractSave(m_num_pages); - m_extractwin.ExtractMain += new PageExtractSave.ExtractCallBackMain(ExtractReturn); - m_extractwin.Activate(); - m_extractwin.Show(); - } - } - - private void ExtractReturn(object sender) - { - if (m_extractwin.xaml_PageList.SelectedItems.Count == 0) - { - ShowMessage(NotifyType_t.MESS_STATUS, "No Pages Selected"); - return; - } - - /* Go through the actual list not the selected items list. The - * selected items list contains them in the order that the were - * selected not the order graphically shown */ - List<SelectPage> pages = new List<SelectPage>(m_extractwin.xaml_PageList.SelectedItems.Count); - - for (int kk = 0; kk < m_extractwin.xaml_PageList.Items.Count; kk++) - { - var item = (m_extractwin.xaml_PageList.ItemContainerGenerator.ContainerFromIndex(kk)) as System.Windows.Controls.ListViewItem; - if (item.IsSelected == true) - { - pages.Add((SelectPage) m_extractwin.Pages[kk]); - } - } - - /* Get a filename */ - System.Windows.Forms.SaveFileDialog dlg = new System.Windows.Forms.SaveFileDialog(); - dlg.Filter = "All files (*.pdf)|*.pdf"; - dlg.FilterIndex = 1; - if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK) - { - mu_doc.PDFExtract(m_currfile, dlg.FileName, m_currpassword, m_currpassword != null, - false, pages.Count, pages); - m_extractwin.Close(); - } - return; - } - - private void GetPassword() - { - if (m_password == null) - { - m_password = new Password(); - m_password.PassUpdateMain += new Password.PassCallBackMain(PasswordReturn); - m_password.Activate(); - m_password.Show(); - } - } - - private void PasswordReturn(object sender) - { - if (mu_doc.ApplyPassword(m_password.xaml_Password.Password)) - { - m_currpassword = m_password.xaml_Password.Password; - m_password.Close(); - m_password = null; - xaml_OpenProgressGrid.Visibility = System.Windows.Visibility.Visible; - xaml_openfilestatus.Text = "Opening File"; - StartViewer(); - } - else - { - xaml_OpenProgressGrid.Visibility = System.Windows.Visibility.Collapsed; - ShowMessage(NotifyType_t.MESS_STATUS, "Password Incorrect"); - } - } - - private void ShowInfo(object sender, RoutedEventArgs e) - { - String Message; - - if (m_file_open) - { - String filename; - - if (m_origfile != null && (m_document_type == DocumentTypes.PS || - m_document_type == DocumentTypes.EPS)) - filename = m_origfile; - else - filename = m_currfile; - - Message = - " File: " + filename + "\n" + - "Document Type: " + m_document_type + "\n" + - " Pages: " + m_num_pages + "\n" + - " Current Page: " + (m_currpage + 1) + "\n"; - if (m_infowindow == null || !(m_infowindow.IsActive)) - m_infowindow = new Info(); - m_infowindow.xaml_TextInfo.Text = Message; - m_infowindow.FontFamily = new FontFamily("Courier New"); - m_infowindow.Show(); - } - } - - #region Zoom Control - - /* Find out where the current page is */ - private double ComputeOffsetZoomOut(double old_zoom) - { - double y = 0; - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - if (viewer != null) - { - /* Look at the offset and where it falls relative to the top of our current page */ - UIElement uiElement = (UIElement)xaml_PageList.ItemContainerGenerator.ContainerFromIndex(m_currpage); - y = viewer.TranslatePoint(new System.Windows.Point(0, 0), uiElement).Y; - } - return y * m_doczoom / old_zoom; - } - - private double ComputeOffsetZoomIn(double old_zoom, out int new_page) - { - double y = 0; - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - new_page = m_currpage; - if (viewer != null) - { - /* Look at the offset and where it falls relative to the top of our current page */ - UIElement uiElement = (UIElement)xaml_PageList.ItemContainerGenerator.ContainerFromIndex(m_currpage); - y = viewer.TranslatePoint(new System.Windows.Point(0, 0), uiElement).Y; - - /* If we are zoomed out, we can be on a page that is not on the top boundry. See if we can find one - * that is */ - if (y < 0) - { - new_page = m_currpage - 1; - while (true) - { - if (new_page < 0) - { - new_page = 0; - return 0; - } - uiElement = (UIElement)xaml_PageList.ItemContainerGenerator.ContainerFromIndex(new_page); - y = viewer.TranslatePoint(new System.Windows.Point(0, 0), uiElement).Y; - if (y >= 0) - { - return y * m_doczoom / old_zoom; - } - new_page = new_page - 1; - } - } - } - return y * m_doczoom / old_zoom; - } - - private void ZoomOut(object sender, RoutedEventArgs e) - { - if (!m_init_done || m_doczoom <= Constants.ZOOM_MIN) - return; - double old_zoom = m_doczoom; - m_doczoom = m_doczoom - Constants.ZOOM_STEP; - if (m_doczoom < Constants.ZOOM_MIN) - m_doczoom = Constants.ZOOM_MIN; - xaml_ZoomSlider.Value = m_doczoom * 100.0; - double offset = ComputeOffsetZoomOut(old_zoom); - RenderRange(m_currpage, false, zoom_t.ZOOM_OUT, offset); - } - - private void ZoomIn(object sender, RoutedEventArgs e) - { - if (!m_init_done || m_doczoom >= Constants.ZOOM_MAX) - return; - double old_zoom = m_doczoom; - m_doczoom = m_doczoom + Constants.ZOOM_STEP; - if (m_doczoom > Constants.ZOOM_MAX) - m_doczoom = Constants.ZOOM_MAX; - xaml_ZoomSlider.Value = m_doczoom * 100.0; - int newpage; - double offset = ComputeOffsetZoomIn(old_zoom, out newpage); - RenderRange(newpage, false, zoom_t.ZOOM_IN, offset); - } - - private void ActualSize(object sender, RoutedEventArgs e) - { - if (!m_init_done) - return; - double old_zoom = m_doczoom; - m_doczoom = 1.0; - xaml_ZoomSlider.Value = m_doczoom * 100.0; - if (old_zoom < 1.0) - { - int new_page; - double offset = ComputeOffsetZoomIn(old_zoom, out new_page); - RenderRange(new_page, false, zoom_t.ZOOM_IN, offset); - } - else if (old_zoom > 1.0) - { - double offset = ComputeOffsetZoomOut(old_zoom); - RenderRange(m_currpage, false, zoom_t.ZOOM_OUT, offset); - } - } - - private void ContScrollFill(object sender, RoutedEventArgs e) - { - if (!m_init_done) - return; - /* Scale our pages based upon the size of scrollviewer */ - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - if (viewer == null) - return; - double width = viewer.ViewportWidth; - double page_width = m_thumbnails[m_currpage].NativeWidth; - double scale = width / page_width; - if (scale < Constants.ZOOM_MIN) - scale = Constants.ZOOM_MIN; - if (scale > Constants.ZOOM_MAX) - scale = Constants.ZOOM_MAX; - if (m_doczoom == scale) - return; - double old_zoom = m_doczoom; - m_doczoom = scale; - xaml_ZoomSlider.Value = m_doczoom * 100.0; - if (old_zoom > m_doczoom) - RenderRange(m_currpage, true, zoom_t.ZOOM_OUT, 0); - else - RenderRange(m_currpage, true, zoom_t.ZOOM_IN, 0); - } - - private void ExpandFill(object sender, RoutedEventArgs e) - { - if (!m_init_done) - return; - /* Scale our pages based upon the size of scrollviewer */ - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - if (viewer == null) - return; - double height = viewer.ViewportHeight; - double width = viewer.ViewportWidth; - double page_height = m_thumbnails[m_currpage].NativeHeight; - double page_width = m_thumbnails[m_currpage].NativeWidth; - double height_scale = height / page_height; - double width_scale = width / page_width; - double scale = Math.Min(height_scale, width_scale); - if (scale < Constants.ZOOM_MIN) - scale = Constants.ZOOM_MIN; - if (scale > Constants.ZOOM_MAX) - scale = Constants.ZOOM_MAX; - if (m_doczoom == scale) - return; - double old_zoom = m_doczoom; - m_doczoom = scale; - xaml_ZoomSlider.Value = m_doczoom * 100.0; - if (old_zoom > m_doczoom) - RenderRange(m_currpage, true, zoom_t.ZOOM_OUT, 0); - else - RenderRange(m_currpage, true, zoom_t.ZOOM_IN, 0); - } - - private void ShowFooter(object sender, RoutedEventArgs e) - { - xaml_FooterControl.Visibility = System.Windows.Visibility.Visible; - } - - private void HideFooter(object sender, RoutedEventArgs e) - { - xaml_FooterControl.Visibility = System.Windows.Visibility.Collapsed; - } - - private void ZoomReleased(object sender, MouseButtonEventArgs e) - { - if (m_init_done) - { - double zoom = xaml_ZoomSlider.Value / 100.0; - if (zoom > Constants.ZOOM_MAX) - zoom = Constants.ZOOM_MAX; - if (zoom < Constants.ZOOM_MIN) - zoom = Constants.ZOOM_MIN; - double old_zoom = zoom; - m_doczoom = zoom; - if (old_zoom > m_doczoom) - { - double offset = ComputeOffsetZoomOut(old_zoom); - RenderRange(m_currpage, false, zoom_t.ZOOM_OUT, offset); - } - else - { - int new_page; - double offset = ComputeOffsetZoomIn(old_zoom, out new_page); - RenderRange(new_page, false, zoom_t.ZOOM_IN, offset); - } - } - } - - /* If the zoom is not equalto 1 then set the zoom to 1 and scoll to this page */ - private void PageDoubleClick(object sender, MouseButtonEventArgs e) - { - return; /* Disable this for now */ - if (m_doczoom != 1.0) - { - double old_zoom = m_doczoom; - m_doczoom = 1.0; - xaml_Zoomsize.Text = "100"; - var item = ((FrameworkElement)e.OriginalSource).DataContext as DocPage; - if (item != null) - { - if (old_zoom > m_doczoom) - { - double offset = ComputeOffsetZoomOut(old_zoom); - RenderRange(m_currpage, false, zoom_t.ZOOM_OUT, offset); - } - else - { - int new_page; - double offset = ComputeOffsetZoomIn(old_zoom, out new_page); - RenderRange(new_page, false, zoom_t.ZOOM_IN, offset); - } - } - } - } - - private void ZoomEnterClicked(object sender, System.Windows.Input.KeyEventArgs e) - { - if (e.Key == Key.Return) - { - e.Handled = true; - var desired_zoom = xaml_Zoomsize.Text; - try - { - double zoom = (double)System.Convert.ToInt32(desired_zoom) / 100.0; - if (zoom > Constants.ZOOM_MAX) - zoom = Constants.ZOOM_MAX; - if (zoom < Constants.ZOOM_MIN) - zoom = Constants.ZOOM_MIN; - double old_zoom = m_doczoom; - m_doczoom = zoom; - if (old_zoom > m_doczoom) - { - double offset = ComputeOffsetZoomOut(old_zoom); - RenderRange(m_currpage, false, zoom_t.ZOOM_OUT, offset); - } - else - { - int new_page; - double offset = ComputeOffsetZoomIn(old_zoom, out new_page); - RenderRange(new_page, false, zoom_t.ZOOM_IN, offset); - } - } - catch (FormatException e1) - { - Console.WriteLine("String is not a sequence of digits."); - } - catch (OverflowException e2) - { - Console.WriteLine("The number cannot fit in an Int32."); - } - } - } - - /* Rescale the pages based upon the zoom value and the native size */ - private void UpdatePageSizes() - { - SetThumbwidth(); - for (int k = 0; k > m_num_pages; k++) - { - var thumbpage = m_thumbnails[k]; - var page = m_docPages[k]; - - if (page.Zoom == m_doczoom) - continue; - int scale_zoom = (int)Math.Round((double)page.Height / (double)thumbpage.NativeHeight); - if (scale_zoom != m_doczoom) - { - page.Height = (int)Math.Round(thumbpage.NativeHeight * m_doczoom); - page.Width = (int)Math.Round(thumbpage.NativeWidth * m_doczoom); - } - } - } - #endregion Zoom Control - - #region Thumb Rendering - void SetThumbInit(int page_num, Byte[] bitmap, Point ras_size, double zoom_in) - { - /* Three jobs. Store the thumb and possibly update the full page. Also - add to collection of pages. Set up page geometry info (scale of - 100 percent ) */ - - DocPage doc_page = new DocPage(); - m_thumbnails.Add(doc_page); - - doc_page.Width = (int)ras_size.X; - - doc_page.Height = (int)ras_size.Y; - doc_page.NativeWidth = (int)(ras_size.X / Constants.SCALE_THUMB); - doc_page.NativeHeight = (int)(ras_size.Y / Constants.SCALE_THUMB); - m_totalpageheight = m_totalpageheight + doc_page.NativeHeight; - - doc_page.Content = Page_Content_t.THUMBNAIL; - doc_page.Zoom = zoom_in; - int stride = doc_page.Width * 4; - doc_page.BitMap = BitmapSource.Create(doc_page.Width, doc_page.Height, - 72, 72, PixelFormats.Pbgra32, BitmapPalettes.Halftone256, bitmap, stride); - doc_page.PageNum = page_num; - - /* Lets see if we need to set the main page */ - var doc = m_docPages[page_num]; - switch (doc.Content) - { - case Page_Content_t.FULL_RESOLUTION: - case Page_Content_t.THUMBNAIL: - return; - - case Page_Content_t.NOTSET: - doc_page = InitDocPage(); - doc_page.Content = Page_Content_t.THUMBNAIL; - doc_page.Zoom = zoom_in; - doc_page.BitMap = m_thumbnails[page_num].BitMap; - doc_page.Width = (int)(ras_size.X / Constants.SCALE_THUMB); - doc_page.Height = (int)(ras_size.Y / Constants.SCALE_THUMB); - doc_page.PageNum = page_num; - this.m_docPages[page_num] = doc_page; - break; - - case Page_Content_t.OLD_RESOLUTION: - return; - } - } - - private void ThumbsWork(object sender, DoWorkEventArgs e) - { - Point ras_size; - status_t code; - double scale_factor = Constants.SCALE_THUMB; - BackgroundWorker worker = sender as BackgroundWorker; - - Byte[] bitmap; - - for (int k = 0; k < m_num_pages; k++) - { - if (ComputePageSize(k, scale_factor, out ras_size) == status_t.S_ISOK) - { - try - { - bitmap = new byte[(int)ras_size.X * (int)ras_size.Y * 4]; - BlocksText charlist; - Annotate_t annot; - /* Synchronous call on our background thread */ - code = (status_t)mu_doc.RenderPage(k, bitmap, (int)ras_size.X, - (int)ras_size.Y, scale_factor, false, false, false, - out charlist, false, out annot); - } - catch (OutOfMemoryException em) - { - Console.WriteLine("Memory allocation failed thumb page " + k + em.Message + "\n"); - break; - } - /* Use thumb if we rendered ok */ - if (code == status_t.S_ISOK) - { - double percent = 100 * (double)(k + 1) / (double)m_num_pages; - thumb_t curr_thumb = new thumb_t(); - curr_thumb.page_num = k; - curr_thumb.bitmap = bitmap; - curr_thumb.size = ras_size; - worker.ReportProgress((int)percent, curr_thumb); - } - } - if (worker.CancellationPending == true) - { - e.Cancel = true; - break; - } - } - } - - private void ThumbsCompleted(object sender, RunWorkerCompletedEventArgs e) - { - xaml_ProgressGrid.Visibility = System.Windows.Visibility.Collapsed; - xaml_ThumbProgress.Value = 0; - xaml_ThumbList.ItemsSource = m_thumbnails; - m_have_thumbs = true; - m_thumbworker = null; - //xaml_CancelThumb.IsEnabled = true; - xaml_ThumbList.Items.Refresh(); - xaml_VerticalScroll.Minimum = 0; - xaml_VerticalScroll.Maximum = m_totalpageheight + 4 * m_num_pages; - //thumbSize = (viewportSize/(maximum–minimum+viewportSize))×trackLength - SetThumbwidth(); - //ScrollBarExtensions.SetThumbLength(xaml_VerticalScroll, 1); - } - - private void ThumbsProgressChanged(object sender, ProgressChangedEventArgs e) - { - thumb_t thumb = (thumb_t)(e.UserState); - - xaml_ThumbProgress.Value = e.ProgressPercentage; - SetThumbInit(thumb.page_num, thumb.bitmap, thumb.size, 1.0); - } - - private void RenderThumbs() - { - /* Create background task for rendering the thumbnails. Allow - this to be cancelled if we open a new doc while we are in loop - rendering. Put the UI updates in the progress changed which will - run on the main thread */ - try - { - m_thumbworker = new BackgroundWorker(); - m_thumbworker.WorkerReportsProgress = true; - m_thumbworker.WorkerSupportsCancellation = true; - m_thumbworker.DoWork += new DoWorkEventHandler(ThumbsWork); - m_thumbworker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(ThumbsCompleted); - m_thumbworker.ProgressChanged += new ProgressChangedEventHandler(ThumbsProgressChanged); - xaml_ProgressGrid.Visibility = System.Windows.Visibility.Visible; - m_thumbworker.RunWorkerAsync(); - } - catch (OutOfMemoryException e) - { - Console.WriteLine("Memory allocation failed during thumb rendering\n"); - ShowMessage(NotifyType_t.MESS_ERROR, "Out of memory: " + e.Message); - } - } - #endregion Thumb Rendering - - #region Copy Paste - /* Copy the current page as a bmp to the clipboard this is done at the - * current resolution */ - private void CopyPage(object sender, RoutedEventArgs e) - { - if (!m_init_done) - return; - var curr_page = m_docPages[m_currpage]; - System.Windows.Clipboard.SetImage(curr_page.BitMap); - m_clipboardset = true; - } - - /* Paste the page to various types supported by the windows encoder class */ - private void PastePage(object sender, RoutedEventArgs e) - { - var menu = (System.Windows.Controls.MenuItem)sender; - - String tag = (String)menu.Tag; - - if (!m_clipboardset || !System.Windows.Clipboard.ContainsImage() || - !m_init_done) - return; - var bitmap = System.Windows.Clipboard.GetImage(); - - BitmapEncoder encoder; - System.Windows.Forms.SaveFileDialog dlg = new System.Windows.Forms.SaveFileDialog(); - dlg.FilterIndex = 1; - - switch (tag) - { - case "PNG": - dlg.Filter = "PNG Files(*.png)|*.png"; - encoder = new PngBitmapEncoder(); - - break; - case "JPG": - dlg.Filter = "JPEG Files(*.jpg)|*.jpg"; - encoder = new JpegBitmapEncoder(); - break; - - case "WDP": - dlg.Filter = "HDP Files(*.wdp)|*.wdp"; - encoder = new WmpBitmapEncoder(); - break; - - case "TIF": - dlg.Filter = "TIFF Files(*.tif)|*.tif"; - encoder = new TiffBitmapEncoder(); - break; - - case "BMP": - dlg.Filter = "BMP Files(*.bmp)|*.bmp"; - encoder = new BmpBitmapEncoder(); - break; - - case "GIF": - dlg.Filter = "GIF Files(*.gif)|*.gif"; - encoder = new GifBitmapEncoder(); - break; - - default: - return; - } - - encoder.Frames.Add(BitmapFrame.Create(bitmap)); - if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK) - { - using (var stream = dlg.OpenFile()) - encoder.Save(stream); - } - } - #endregion Copy Paste - - #region SaveAs - String CreatePDFXA(Save_Type_t type) - { - Byte[] Resource; - String Profile; - - switch (type) - { - case Save_Type_t.PDFA1_CMYK: - case Save_Type_t.PDFA2_CMYK: - Resource = Properties.Resources.PDFA_def; - Profile = m_outputintents.cmyk_icc; - break; - - case Save_Type_t.PDFA1_RGB: - case Save_Type_t.PDFA2_RGB: - Resource = Properties.Resources.PDFA_def; - Profile = m_outputintents.rgb_icc; - break; - - case Save_Type_t.PDFX3_CMYK: - Resource = Properties.Resources.PDFX_def; - Profile = m_outputintents.cmyk_icc; - break; - - case Save_Type_t.PDFX3_GRAY: - Resource = Properties.Resources.PDFX_def; - Profile = m_outputintents.gray_icc; - break; - - default: - return null; - } - - String Profile_new = Profile.Replace("\\", "/"); - String result = System.Text.Encoding.UTF8.GetString(Resource); - String pdfx_cust = result.Replace("ICCPROFILE", Profile_new); - var out_file = System.IO.Path.GetTempFileName(); - System.IO.File.WriteAllText(out_file, pdfx_cust); - return out_file; - } - - private void SaveFile(Save_Type_t type) - { - if (!m_file_open) - return; - - System.Windows.Forms.SaveFileDialog dlg = new System.Windows.Forms.SaveFileDialog(); - dlg.FilterIndex = 1; - - /* PDF output types */ - if (type <= Save_Type_t.PDF) - { - dlg.Filter = "PDF Files(*.pdf)|*.pdf"; - if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK) - { - String options = null; - bool use_gs = true; - String init_file = CreatePDFXA(type); - - switch (type) - { - case Save_Type_t.PDF: - /* All done. No need to use gs or mupdf */ - System.IO.File.Copy(m_currfile, dlg.FileName, true); - use_gs = false; - break; - case Save_Type_t.LINEAR_PDF: - mu_doc.PDFExtract(m_currfile, dlg.FileName, m_currpassword, - m_currpassword != null, true, -1, null); - use_gs = false; - break; - case Save_Type_t.PDF13: - options = "-dCompatibilityLevel=1.3"; - break; - case Save_Type_t.PDFA1_CMYK: - options = "-dPDFA=1 -dNOOUTERSAVE -dPDFACompatibilityPolicy=1 -sProcessColorModel=DeviceCMYK -dColorConversionStrategy=/CMYK -sOutputICCProfile=" + m_outputintents.cmyk_icc; - break; - case Save_Type_t.PDFA1_RGB: - options = "-dPDFA=1 -dNOOUTERSAVE -dPDFACompatibilityPolicy=1 -sProcessColorModel=DeviceRGB -dColorConversionStrategy=/RGB -sOutputICCProfile=" + m_outputintents.rgb_icc; - break; - case Save_Type_t.PDFA2_CMYK: - options = "-dPDFA=2 -dNOOUTERSAVE -dPDFACompatibilityPolicy=1 -sProcessColorModel=DeviceCMYK -dColorConversionStrategy=/CMYK -sOutputICCProfile=" + m_outputintents.cmyk_icc; - break; - case Save_Type_t.PDFA2_RGB: - options = "-dPDFA=2 -dNOOUTERSAVE -dPDFACompatibilityPolicy=1 -sProcessColorModel=DeviceRGB -dColorConversionStrategy=/RGB -sOutputICCProfile=" + m_outputintents.rgb_icc; - break; - case Save_Type_t.PDFX3_CMYK: - options = "-dPDFX -dNOOUTERSAVE -dPDFACompatibilityPolicy=1 -sProcessColorModel=DeviceCMYK -dColorConversionStrategy=/CMYK -sOutputICCProfile=" + m_outputintents.cmyk_icc; - break; - case Save_Type_t.PDFX3_GRAY: - options = "-dPDFX -dNOOUTERSAVE -dPDFACompatibilityPolicy=1 -sProcessColorModel=DeviceGray -dColorConversionStrategy=/Gray -sOutputICCProfile=" + m_outputintents.cmyk_icc; - break; - - } - if (use_gs) - { - xaml_DistillProgress.Value = 0; - if (m_ghostscript.Convert(m_currfile, options, - Enum.GetName(typeof(gsDevice_t), gsDevice_t.pdfwrite), - dlg.FileName, m_num_pages, 300, false, null, -1, -1, - init_file, null) == gsStatus.GS_BUSY) - { - ShowMessage(NotifyType_t.MESS_STATUS, "GS busy"); - return; - } - xaml_DistillName.Text = "Creating PDF"; - xaml_CancelDistill.Visibility = System.Windows.Visibility.Collapsed; - xaml_DistillName.FontWeight = FontWeights.Bold; - xaml_DistillGrid.Visibility = System.Windows.Visibility.Visible; - } - } - } - else - { - /* Non PDF output */ - gsDevice_t Device = gsDevice_t.xpswrite; - bool use_mupdf = true; - String Message = ""; - textout_t textout = textout_t.HTML; - switch (type) - { - case Save_Type_t.HTML: - dlg.Filter = "HTML (*.html)|*.html"; - Message = "HTML content written"; - break; - case Save_Type_t.XML: - dlg.Filter = "XML (*.xml)|*.xml"; - Message = "XML content written"; - textout = textout_t.XML; - break; - case Save_Type_t.TEXT: - dlg.Filter = "Text (*.txt)|*.txt"; - Message = "Text content written"; - textout = textout_t.TEXT; - break; - case Save_Type_t.PCLXL: - use_mupdf = false; - dlg.Filter = "PCL-XL (*.bin)|*.bin"; - Device = gsDevice_t.pxlcolor; - break; - case Save_Type_t.XPS: - use_mupdf = false; - dlg.Filter = "XPS Files(*.xps)|*.xps"; - break; - } - if (!use_mupdf) - { - if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK) - { - if (m_ghostscript.Convert(m_currfile, "", - Enum.GetName(typeof(gsDevice_t), Device), - dlg.FileName, 1, 300, false, null, -1, -1, - null, null) == gsStatus.GS_BUSY) - { - ShowMessage(NotifyType_t.MESS_STATUS, "GS busy"); - return; - } - } - } - else - { - if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK) - { - /* Write out first non null page then append the rest */ - int curr_page = 0; - bool done = false; - - while (!done) - { - String output = null; - output = mu_doc.GetText(curr_page, textout); - if (output == null) - { - curr_page = curr_page + 1; - if (curr_page == m_num_pages) - { - ShowMessage(NotifyType_t.MESS_STATUS, "No text found in file"); - return; - } - } - else - { - System.IO.File.WriteAllText(dlg.FileName, output); - done = true; - } - } - curr_page = curr_page + 1; - - if (curr_page == m_num_pages) - { - ShowMessage(NotifyType_t.MESS_STATUS, Message); - return; - } - done = false; - while (!done) - { - String output = null; - output = mu_doc.GetText(curr_page, textout); - if (output != null) - { - System.IO.File.AppendAllText(dlg.FileName, output); - } - curr_page = curr_page + 1; - if (curr_page == m_num_pages) - { - ShowMessage(NotifyType_t.MESS_STATUS, Message); - return; - } - } - } - } - } - } - - private void SaveSVG(object sender, RoutedEventArgs e) - { - SaveFile(Save_Type_t.SVG); - } - - private void SavePDF(object sender, RoutedEventArgs e) - { - SaveFile(Save_Type_t.PDF); - } - - private void SaveText(object sender, RoutedEventArgs e) - { - SaveFile(Save_Type_t.TEXT); - } - - private void SaveXML(object sender, RoutedEventArgs e) - { - SaveFile(Save_Type_t.XML); - } - - private void SaveHTML(object sender, RoutedEventArgs e) - { - SaveFile(Save_Type_t.HTML); - } - - private void Linearize(object sender, RoutedEventArgs e) - { - SaveFile(Save_Type_t.LINEAR_PDF); - } - - private void SavePDF13(object sender, RoutedEventArgs e) - { - SaveFile(Save_Type_t.PDF13); - } - - private void SavePDFX3_Gray(object sender, RoutedEventArgs e) - { - if (m_outputintents.gray_icc == null) - { - ShowMessage(NotifyType_t.MESS_STATUS, "Set Gray Output Intent ICC Profile"); - return; - } - SaveFile(Save_Type_t.PDFX3_GRAY); - } - - private void SavePDFX3_CMYK(object sender, RoutedEventArgs e) - { - if (m_outputintents.cmyk_icc == null) - { - ShowMessage(NotifyType_t.MESS_STATUS, "Set CMYK Output Intent ICC Profile"); - return; - } - SaveFile(Save_Type_t.PDFX3_CMYK); - } - - private void SavePDFA1_RGB(object sender, RoutedEventArgs e) - { - if (m_outputintents.rgb_icc == null) - { - ShowMessage(NotifyType_t.MESS_STATUS, "Set RGB Output Intent ICC Profile"); - return; - } - SaveFile(Save_Type_t.PDFA1_RGB); - } - - private void SavePDFA1_CMYK(object sender, RoutedEventArgs e) - { - if (m_outputintents.cmyk_icc == null) - { - ShowMessage(NotifyType_t.MESS_STATUS, "Set CMYK Output Intent ICC Profile"); - return; - } - SaveFile(Save_Type_t.PDFA1_CMYK); - } - - private void SavePDFA2_RGB(object sender, RoutedEventArgs e) - { - if (m_outputintents.rgb_icc == null) - { - ShowMessage(NotifyType_t.MESS_STATUS, "Set RGB Output Intent ICC Profile"); - return; - } - SaveFile(Save_Type_t.PDFA2_RGB); - } - - private void SavePDFA2_CMYK(object sender, RoutedEventArgs e) - { - if (m_outputintents.cmyk_icc == null) - { - ShowMessage(NotifyType_t.MESS_STATUS, "Set CMYK Output Intent ICC Profile"); - return; - } - SaveFile(Save_Type_t.PDFA2_CMYK); - } - - private void SavePCLXL(object sender, RoutedEventArgs e) - { - SaveFile(Save_Type_t.PCLXL); - } - private void SaveXPS(object sender, RoutedEventArgs e) - { - SaveFile(Save_Type_t.XPS); - } - #endregion SaveAs - - #region Extract - private void Extract(Extract_Type_t type) - { - if (m_selection != null || !m_init_done) - return; - - m_selection = new Selection(m_currpage + 1, m_doczoom, type); - m_selection.UpdateMain += new Selection.CallBackMain(SelectionMade); - m_selection.Show(); - m_selection.xaml_Image.Source = m_docPages[m_currpage].BitMap; - m_selection.xaml_Image.Height = m_docPages[m_currpage].Height; - m_selection.xaml_Image.Width = m_docPages[m_currpage].Width; - } - - async private void SelectionZoom(int page_num, double zoom) - { - Point ras_size; - if (ComputePageSize(page_num, zoom, out ras_size) == status_t.S_ISOK) - { - try - { - Byte[] bitmap = new byte[(int)ras_size.X * (int)ras_size.Y * 4]; - BlocksText charlist; - Annotate_t annot; - - Task<int> ren_task = - new Task<int>(() => mu_doc.RenderPage(page_num, bitmap, - (int)ras_size.X, (int)ras_size.Y, zoom, false, true, - false, out charlist, true, out annot)); - ren_task.Start(); - await ren_task.ContinueWith((antecedent) => - { - status_t code = (status_t)ren_task.Result; - if (code == status_t.S_ISOK) - { - if (m_selection != null) - { - int stride = (int)ras_size.X * 4; - m_selection.xaml_Image.Source = BitmapSource.Create((int)ras_size.X, (int)ras_size.Y, 72, 72, PixelFormats.Pbgra32, BitmapPalettes.Halftone256, bitmap, stride); - m_selection.xaml_Image.Height = (int)ras_size.Y; - m_selection.xaml_Image.Width = (int)ras_size.X; - m_selection.UpdateRect(); - m_selection.m_curr_state = SelectStatus_t.OK; - } - } - }, TaskScheduler.FromCurrentSynchronizationContext()); - } - catch (OutOfMemoryException e) - { - Console.WriteLine("Memory allocation failed page " + page_num + "\n"); - ShowMessage(NotifyType_t.MESS_ERROR, "Out of memory: " + e.Message); - } - } - } - - private void SelectionMade(object gsObject, SelectEventArgs results) - { - switch (results.State) - { - case SelectStatus_t.CANCEL: - case SelectStatus_t.CLOSE: - m_selection = null; - return; - case SelectStatus_t.SELECT: - /* Get the information we need */ - double zoom = results.ZoomFactor; - Point start = results.TopLeft; - Point size = results.Size; - int page = results.PageNum; - gsDevice_t Device = gsDevice_t.pdfwrite; - - start.X = start.X / zoom; - start.Y = start.Y / zoom; - size.X = size.X / zoom; - size.Y = size.Y / zoom; - - /* Do the actual extraction */ - String options; - System.Windows.Forms.SaveFileDialog dlg = new System.Windows.Forms.SaveFileDialog(); - dlg.FilterIndex = 1; - - /* Get us set up to do a fixed size */ - options = "-dFirstPage=" + page + " -dLastPage=" + page + - " -dDEVICEWIDTHPOINTS=" + size.X + " -dDEVICEHEIGHTPOINTS=" + - size.Y + " -dFIXEDMEDIA"; - - /* Set up the translation */ - String init_string = "<</Install {-" + start.X + " -" + - start.Y + " translate (testing) == flush}>> setpagedevice"; - - switch (results.Type) - { - case Extract_Type_t.PDF: - dlg.Filter = "PDF Files(*.pdf)|*.pdf"; - break; - case Extract_Type_t.EPS: - dlg.Filter = "EPS Files(*.eps)|*.eps"; - Device = gsDevice_t.eps2write; - break; - case Extract_Type_t.PS: - dlg.Filter = "PostScript Files(*.ps)|*.ps"; - Device = gsDevice_t.ps2write; - break; - case Extract_Type_t.SVG: - dlg.Filter = "SVG Files(*.svg)|*.svg"; - break; - } - if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK) - { - if (m_ghostscript.Convert(m_currfile, options, - Enum.GetName(typeof(gsDevice_t), Device), - dlg.FileName, 1, 300, false, null, page, page, - null, init_string) == gsStatus.GS_BUSY) - { - ShowMessage(NotifyType_t.MESS_STATUS, "GS busy"); - return; - } - } - m_selection.Close(); - break; - case SelectStatus_t.ZOOMIN: - /* Render new page at this resolution and hand it off */ - SelectionZoom(results.PageNum - 1, results.ZoomFactor); - break; - case SelectStatus_t.ZOOMOUT: - /* Render new page at this resolution and hand it off */ - SelectionZoom(results.PageNum - 1, results.ZoomFactor); - break; - } - } - - private void ExtractPDF(object sender, RoutedEventArgs e) - { - Extract(Extract_Type_t.PDF); - } - private void ExtractEPS(object sender, RoutedEventArgs e) - { - Extract(Extract_Type_t.EPS); - } - private void ExtractPS(object sender, RoutedEventArgs e) - { - Extract(Extract_Type_t.PS); - } - private void OutputIntents(object sender, RoutedEventArgs e) - { - m_outputintents.Show(); - } - #endregion Extract - - #region Search - /* Search related code */ - private void Search(object sender, RoutedEventArgs e) - { - if (!m_init_done || (m_textsearch != null && m_textsearch.IsBusy)) - return; - - m_textsearch = null; /* Start out fresh */ - if (xaml_SearchControl.Visibility == System.Windows.Visibility.Collapsed) - xaml_SearchControl.Visibility = System.Windows.Visibility.Visible; - else - { - xaml_SearchControl.Visibility = System.Windows.Visibility.Collapsed; - xaml_SearchGrid.Visibility = System.Windows.Visibility.Collapsed; - ClearTextSearch(); - } - } - - private void OnSearchBackClick(object sender, RoutedEventArgs e) - { - String textToFind = xaml_SearchText.Text; - TextSearchSetUp(-1, textToFind); - } - - private void OnSearchForwardClick(object sender, RoutedEventArgs e) - { - String textToFind = xaml_SearchText.Text; - TextSearchSetUp(1, textToFind); - } - - /* The thread that is actually doing the search work */ - void SearchWork(object sender, DoWorkEventArgs e) - { - BackgroundWorker worker = sender as BackgroundWorker; - List<object> genericlist = e.Argument as List<object>; - int direction = (int)genericlist[0]; - String needle = (String)genericlist[1]; - /* To make sure we get the next page or current page during search */ - int in_search = (int)genericlist[2]; - m_searchpage = m_currpage + direction * in_search; - searchResults_t results = new searchResults_t(); - - /* Break if we find something, get to the end (or start of doc) - * or if we have a cancel occur */ - while (true) - { - int box_count = mu_doc.TextSearchPage(m_searchpage, needle); - int percent; - - if (direction == 1) - percent = (int)(100.0 * ((double)m_searchpage + 1) / (double)m_num_pages); - else - percent = 100 - (int)(100.0 * ((double)m_searchpage) / (double)m_num_pages); - - if (box_count > 0) - { - /* This page has something lets go ahead and extract and - * signal to the UI thread and end this thread */ - results.done = false; - results.num_rects = box_count; - results.page_found = m_searchpage; - results.rectangles = new List<Rect>(); - - for (int kk = 0; kk < box_count; kk++) - { - Point top_left; - Size size; - mu_doc.GetTextSearchItem(kk, out top_left, out size); - var rect = new Rect(top_left, size); - results.rectangles.Add(rect); - } - /* Reset global smart pointer once we have everything */ - mu_doc.ReleaseTextSearch(); - worker.ReportProgress(percent, results); - break; - } - else - { - /* This page has nothing. Lets go ahead and just update - * the progress bar */ - worker.ReportProgress(percent, null); - if (percent >= 100) - { - results.done = true; - results.needle = needle; - break; - } - m_searchpage = m_searchpage + direction; - } - if (worker.CancellationPending == true) - { - e.Cancel = true; - break; - } - } - e.Result = results; - } - - private void SearchProgressChanged(object sender, ProgressChangedEventArgs e) - { - if (e.UserState == null) - { - /* Nothing found */ - xaml_SearchProgress.Value = e.ProgressPercentage; - } - else - { - m_text_list = new List<RectList>(); - /* found something go to page and show results */ - searchResults_t results = (searchResults_t)e.UserState; - xaml_SearchProgress.Value = e.ProgressPercentage; - m_currpage = results.page_found; - /* Add in the rectangles */ - for (int kk = 0; kk < results.num_rects; kk++) - { - var rect_item = new RectList(); - rect_item.Scale = m_doczoom; - rect_item.Color = m_textsearchcolor; - rect_item.Height = results.rectangles[kk].Height * m_doczoom; - rect_item.Width = results.rectangles[kk].Width * m_doczoom; - rect_item.X = results.rectangles[kk].X * m_doczoom; - rect_item.Y = results.rectangles[kk].Y * m_doczoom; - rect_item.Index = kk.ToString(); - m_text_list.Add(rect_item); - } - m_docPages[results.page_found].TextBox = m_text_list; - m_doscroll = true; - xaml_PageList.ScrollIntoView(m_docPages[results.page_found]); - } - } - - private void SearchCompleted(object sender, RunWorkerCompletedEventArgs e) - { - if (e.Cancelled == true) - { - xaml_SearchGrid.Visibility = System.Windows.Visibility.Collapsed; - m_textsearch = null; - } - else - { - searchResults_t results = (searchResults_t)e.Result; - if (results.done == true) - { - xaml_SearchGrid.Visibility = System.Windows.Visibility.Collapsed; - m_textsearch = null; - ShowMessage(NotifyType_t.MESS_STATUS, "End of document search for \"" + results.needle + "\""); - } - } - } - - private void CancelSearchClick(object sender, RoutedEventArgs e) - { - if (m_textsearch != null && m_textsearch.IsBusy) - m_textsearch.CancelAsync(); - xaml_SearchGrid.Visibility = System.Windows.Visibility.Collapsed; - m_textsearch = null; - ClearTextSearch(); - } - - private void ClearTextSearch() - { - for (int kk = 0; kk < m_num_pages; kk++) - { - var temp = m_docPages[kk].TextBox; - if (temp != null) - { - m_docPages[kk].TextBox = null; - } - } - } - - private void ScaleTextBox(int pagenum) - { - var temp = m_docPages[pagenum].TextBox; - for (int kk = 0; kk < temp.Count; kk++) - { - var rect_item = temp[kk]; - double factor = m_doczoom / temp[kk].Scale; - - temp[kk].Height = temp[kk].Height * factor; - temp[kk].Width = temp[kk].Width * factor; - temp[kk].X = temp[kk].X * factor; - temp[kk].Y = temp[kk].Y * factor; - - temp[kk].Scale = m_doczoom; - temp[kk].PageRefresh(); - } - m_docPages[pagenum].TextBox = temp; - } - - private void TextSearchSetUp(int direction, String needle) - { - /* Create background task for performing text search. */ - try - { - int in_text_search = 0; - - if (m_textsearch != null && m_textsearch.IsBusy) - return; - - if (m_textsearch != null) - { - in_text_search = 1; - m_textsearch = null; - } - if (m_prevsearch != null && needle != m_prevsearch) - { - in_text_search = 0; - ClearTextSearch(); - } - - if (m_textsearch == null) - { - m_prevsearch = needle; - m_textsearch = new BackgroundWorker(); - m_textsearch.WorkerReportsProgress = true; - m_textsearch.WorkerSupportsCancellation = true; - var arguments = new List<object>(); - arguments.Add(direction); - arguments.Add(needle); - arguments.Add(in_text_search); - m_textsearch.DoWork += new DoWorkEventHandler(SearchWork); - m_textsearch.RunWorkerCompleted += new RunWorkerCompletedEventHandler(SearchCompleted); - m_textsearch.ProgressChanged += new ProgressChangedEventHandler(SearchProgressChanged); - xaml_SearchGrid.Visibility = System.Windows.Visibility.Visible; - m_textsearch.RunWorkerAsync(arguments); - } - } - catch (OutOfMemoryException e) - { - Console.WriteLine("Memory allocation failed during text search\n"); - ShowMessage(NotifyType_t.MESS_ERROR, "Out of memory: " + e.Message); - } - } - #endregion Search - - #region Link - private void LinksToggle(object sender, RoutedEventArgs e) - { - if (!m_init_done) - return; - - m_links_on = !m_links_on; - - if (m_page_link_list == null) - { - if (m_linksearch != null && m_linksearch.IsBusy) - return; - - m_page_link_list = new List<List<RectList>>(); - m_linksearch = new BackgroundWorker(); - m_linksearch.WorkerReportsProgress = false; - m_linksearch.WorkerSupportsCancellation = true; - m_linksearch.DoWork += new DoWorkEventHandler(LinkWork); - m_linksearch.RunWorkerCompleted += new RunWorkerCompletedEventHandler(LinkCompleted); - m_linksearch.RunWorkerAsync(); - } - else - { - if (m_links_on) - LinksOn(); - else - LinksOff(); - } - } - - private void LinkWork(object sender, DoWorkEventArgs e) - { - BackgroundWorker worker = sender as BackgroundWorker; - - for (int k = 0; k < m_num_pages; k++) - { - int box_count = mu_doc.GetLinksPage(k); - List<RectList> links = new List<RectList>(); - if (box_count > 0) - { - for (int j = 0; j < box_count; j++) - { - Point top_left; - Size size; - String uri; - int type; - int topage; - - mu_doc.GetLinkItem(j, out top_left, out size, out uri, - out topage, out type); - var rectlist = new RectList(); - rectlist.Height = size.Height * m_doczoom; - rectlist.Width = size.Width * m_doczoom; - rectlist.X = top_left.X * m_doczoom; - rectlist.Y = top_left.Y * m_doczoom; - rectlist.Color = m_linkcolor; - rectlist.Index = k.ToString() + "." + j.ToString(); - rectlist.PageNum = topage; - rectlist.Scale = m_doczoom; - if (uri != null) - rectlist.Urilink = new Uri(uri); - rectlist.Type = (Link_t)type; - links.Add(rectlist); - } - } - mu_doc.ReleaseLink(); - m_page_link_list.Add(links); - - if (worker.CancellationPending == true) - { - e.Cancel = true; - break; - } - } - } - - private void LinkCompleted(object sender, RunWorkerCompletedEventArgs e) - { - LinksOn(); - } - - private void ScaleLinkBox(int pagenum) - { - var temp = m_docPages[pagenum].LinkBox; - for (int kk = 0; kk < temp.Count; kk++) - { - var rect_item = temp[kk]; - double factor = m_doczoom / temp[kk].Scale; - - temp[kk].Height = temp[kk].Height * factor; - temp[kk].Width = temp[kk].Width * factor; - temp[kk].X = temp[kk].X * factor; - temp[kk].Y = temp[kk].Y * factor; - - temp[kk].Scale = m_doczoom; - temp[kk].PageRefresh(); - } - m_docPages[pagenum].LinkBox = temp; - } - /* Merge these */ - private void ScaleTextLines(int pagenum, double scale_factor) - { - var temp = m_lineptrs[pagenum]; - for (int kk = 0; kk < temp.Count; kk++) - { - var rect_item = temp[kk]; - double factor = scale_factor / temp[kk].Scale; - - temp[kk].Height = temp[kk].Height * factor; - temp[kk].Width = temp[kk].Width * factor; - temp[kk].X = temp[kk].X * factor; - temp[kk].Y = temp[kk].Y * factor; - - temp[kk].Scale = scale_factor; - } - m_lineptrs[pagenum] = temp; - } - - private void ScaleTextBlocks(int pagenum, double scale_factor) - { - var temp = m_textptrs[pagenum]; - for (int kk = 0; kk < temp.Count; kk++) - { - var rect_item = temp[kk]; - double factor = scale_factor / temp[kk].Scale; - - temp[kk].Height = temp[kk].Height * factor; - temp[kk].Width = temp[kk].Width * factor; - temp[kk].X = temp[kk].X * factor; - temp[kk].Y = temp[kk].Y * factor; - - temp[kk].Scale = scale_factor; - } - m_textptrs[pagenum] = temp; - } - - private int GetVisibleRange() - { - /* Need to figure out what pages are going to be visible */ - double bottom = this.ActualHeight; - bool done = false; - int final_page = m_currpage; - double count = 0; - - while (!done) - { - count = count + m_thumbnails[final_page].NativeHeight * m_doczoom; - final_page = final_page + 1; - if (final_page == m_num_pages || count > bottom) - done = true; - } - return final_page; - } - - /* Only visible pages */ - private void LinksOff() - { - int final_page = GetVisibleRange(); - for (int kk = m_currpage - 1; kk <= final_page + 1; kk++) - { - var temp = m_docPages[kk].LinkBox; - if (temp != null) - { - m_docPages[kk].LinkBox = null; - } - } - } - - /* Only visible pages */ - private void LinksOn() - { - int final_page = GetVisibleRange(); - for (int kk = m_currpage - 1; kk <= final_page + 1; kk++) - { - if (!(kk < 0 || kk > m_num_pages - 1)) - { - var temp = m_docPages[kk].LinkBox; - if (temp == null) - { - m_docPages[kk].LinkBox = m_page_link_list[kk]; - } - } - } - } - - private void LinkClick(object sender, MouseButtonEventArgs e) - { - var item = (Rectangle)sender; - - if (item == null) - return; - - String tag = (String)item.Tag; - int page = 0; - int index = 0; - - if (tag == null || tag.Length < 3 || !(tag.Contains('.'))) - return; - - String[] parts = tag.Split('.'); - try - { - page = System.Convert.ToInt32(parts[0]); - index = System.Convert.ToInt32(parts[1]); - - } - catch (FormatException e1) - { - Console.WriteLine("String is not a sequence of digits."); - } - catch (OverflowException e2) - { - Console.WriteLine("The number cannot fit in an Int32."); - } - - if (index >= 0 && index < m_num_pages && page >= 0 && page < m_num_pages) - { - var link_list = m_page_link_list[page]; - var link = link_list[index]; - - if (link.Type == Link_t.LINK_GOTO) - { - if (m_currpage != link.PageNum && link.PageNum >= 0 && - link.PageNum < m_num_pages) - RenderRange(link.PageNum, true, zoom_t.NO_ZOOM, 0); - } - else if (link.Type == Link_t.LINK_URI) - System.Diagnostics.Process.Start(link.Urilink.AbsoluteUri); - } - } - #endregion Link - - #region TextSelection - - /* Change cursor if we are over text block */ - private void ExitTextBlock(object sender, System.Windows.Input.MouseEventArgs e) - { - this.Cursor = System.Windows.Input.Cursors.Arrow; - } - - private void EnterTextBlock(object sender, System.Windows.Input.MouseEventArgs e) - { - this.Cursor = System.Windows.Input.Cursors.IBeam; - } - - private void ClearSelections() - { - for (int kk = 0; kk < m_textSelect.Count; kk++) - { - m_lineptrs[m_textSelect[kk].pagenum].Clear(); - if (m_docPages[m_textSelect[kk].pagenum].SelectedLines != null) - m_docPages[m_textSelect[kk].pagenum].SelectedLines.Clear(); - } - m_textSelect.Clear(); - m_textselected = false; - m_selectall = false; - SetSelectAll(m_blockcolor); - } - - private void InitTextSelection(DocPage page) - { - if (m_textSelect != null) - ClearSelections(); - else - m_textSelect = new List<textSelectInfo_t>(); - - m_intxtselect = true; - - textSelectInfo_t selinfo = new textSelectInfo_t(); - selinfo.pagenum = page.PageNum; - selinfo.first_line_full = false; - selinfo.last_line_full = false; - m_textSelect.Add(selinfo); - } - - private void PageMouseDown(object sender, MouseButtonEventArgs e) - { - if (this.Cursor != System.Windows.Input.Cursors.IBeam) - return; - - var page = ((FrameworkElement)e.Source).DataContext as DocPage; - Canvas can = ((FrameworkElement)e.Source).Parent as Canvas; - if (page == null || can == null) - return; - - InitTextSelection(page); - var posit = e.GetPosition(can); - - page.SelX = posit.X; - page.SelY = posit.Y; - page.SelAnchorX = posit.X; - page.SelAnchorY = posit.Y; - page.SelColor = m_regionselect; - - /* Create new holder for lines highlighted */ - m_lineptrs[page.PageNum] = new LinesText(); - } - - private void PageMouseMove(object sender, System.Windows.Input.MouseEventArgs e) - { - if (e.LeftButton == MouseButtonState.Released || m_intxtselect == false) - return; - - var page = ((FrameworkElement)e.Source).DataContext as DocPage; - Canvas can = ((FrameworkElement)e.Source).Parent as Canvas; - if (page == null || can == null) - return; - if (page.PageNum < 0) - return; - /* Store the location of our most recent page in case we exit window */ - var pos = e.GetPosition(can); - m_lastY = pos.Y; - m_maxY = can.Height; - /* Don't allow the listview to maintain control of the mouse, we need - * to detect if we leave the window */ - /* Make sure page is rendered */ - if (page.Content != Page_Content_t.FULL_RESOLUTION || - page.Zoom != m_doczoom) - { - RenderRange(page.PageNum, false, zoom_t.NO_ZOOM, 0); - } - - UpdateSelection(pos, page); - } - - /* Resize selection rect */ - private void UpdateSelection(System.Windows.Point pos, DocPage page) - { - bool new_page = true; - TextLine start_line, end_line; - double x = 0, y, w = 0, h; - bool found_first = false; - bool above_anchor = true; - bool first_line_full = false; - bool last_line_full = false; - - for (int kk = 0; kk < m_textSelect.Count; kk++) - if (m_textSelect[kk].pagenum == page.PageNum) - new_page = false; - - /* See if we have gone back to a previous page */ - if (!new_page && page.PageNum != m_textSelect[m_textSelect.Count - 1].pagenum) - { - DocPage curr_page = m_docPages[m_textSelect[m_textSelect.Count - 1].pagenum]; - curr_page.SelHeight = 0; - curr_page.SelWidth = 0; - m_textSelect.RemoveAt(m_textSelect.Count - 1); - m_lineptrs[curr_page.PageNum].Clear(); - curr_page.SelectedLines.Clear(); - } - if (new_page) - { - /* New page */ - page.SelX = pos.X; - page.SelY = pos.Y; - page.SelAnchorX = m_docPages[m_textSelect[m_textSelect.Count - 1].pagenum].SelAnchorX; - if (m_textSelect[m_textSelect.Count - 1].pagenum > page.PageNum) - { - page.SelAnchorY = page.Height; - } - else - { - page.SelAnchorY = 0; - } - page.SelColor = m_regionselect; - textSelectInfo_t info = new textSelectInfo_t(); - info.pagenum = page.PageNum; - info.first_line_full = false; - info.last_line_full = false; - m_textSelect.Add(info); - /* Create new holder for lines highlighted */ - m_lineptrs[page.PageNum] = new LinesText(); - } - - if (page.TextBlocks == null || page.TextBlocks.Count == 0) - return; - - /* Width changes translate across the pages */ - for (int jj = 0; jj < m_textSelect.Count; jj++) - { - DocPage curr_page = m_docPages[m_textSelect[jj].pagenum]; - x = Math.Min(pos.X, curr_page.SelAnchorX); - w = Math.Max(pos.X, curr_page.SelAnchorX) - x; - curr_page.SelX = x; - curr_page.SelWidth = w; - } - /* Height is just the current page */ - y = Math.Min(pos.Y, page.SelAnchorY); - h = Math.Max(pos.Y, page.SelAnchorY) - y; - - /* Determine if we are going up or down */ - if (pos.Y > page.SelAnchorY) - above_anchor = false; - page.SelY = y; - page.SelHeight = h; - - /* Clear out what we currently have */ - m_lineptrs[page.PageNum].Clear(); - - /* Stuff already selected above us */ - if (m_textSelect.Count > 1) - found_first = true; - /* Moving backwards through pages */ - if (m_textSelect.Count > 1 && m_textSelect[m_textSelect.Count - 2].pagenum > page.PageNum) - found_first = false; - - for (int jj = 0; jj < page.TextBlocks.Count; jj++) - { - /* Text blocks are already scaled. Lines are not */ - var intersect_blk = page.TextBlocks[jj].CheckIntersection(x, y, w, h); - var lines = page.TextBlocks[jj].TextLines; - - if (intersect_blk == Intersection_t.FULL) - { - /* Just add all the lines for this block */ - for (int kk = 0; kk < lines.Count; kk++) - m_lineptrs[page.PageNum].Add(lines[kk]); - if (jj == 0) - { - first_line_full = true; - found_first = true; - } - if (jj == page.TextBlocks.Count - 1) - last_line_full = true; - } - else if (intersect_blk != Intersection_t.NONE) - { - /* Now go through the lines */ - for (int kk = 0; kk < lines.Count; kk++) - { - double scale = m_doczoom / lines[kk].Scale; - //var intersect_line = lines[kk].CheckIntersection(x * scale, y * scale, w * scale, h * scale); - var intersect_line = lines[kk].CheckIntersection(x / scale , y / scale , w / scale , h / scale); - if (intersect_line == Intersection_t.FULL) - { - m_lineptrs[page.PageNum].Add(lines[kk]); - found_first = true; - if (jj == 0 && kk == 0) - first_line_full = true; - if (jj == page.TextBlocks.Count - 1 && - kk == lines.Count - 1) - last_line_full = true; - - } - else if (intersect_line == Intersection_t.PARTIAL) - { - double val; - var lett = lines[kk].TextCharacters; - - /* Now go through the width. */ - if (found_first) - { - if (above_anchor) - val = page.SelAnchorX; - else - val = pos.X; - - /* our second partial line */ - if (val > lines[kk].X * scale + lines[kk].Width * scale) - m_lineptrs[page.PageNum].Add(lines[kk]); - else - { - /* Use either anchor point or mouse pos */ - end_line = new TextLine(); - end_line.TextCharacters = new List<TextCharacter>(); - end_line.Height = 0; - end_line.Scale = m_doczoom; - for (int mm = 0; mm < lett.Count; mm++) - { - double letscale = m_doczoom / lett[mm].Scale; - if (lett[mm].X * letscale < val) - { - /* Can set to special color for debug */ - end_line.Color = m_textselectcolor; - /* special color for debug */ - //end_line.Color = "#4000FF00"; - end_line.Height = lines[kk].Height * scale; - end_line.Width = lett[mm].X * letscale + lett[mm].Width * letscale - lines[kk].X * scale; - end_line.Y = lines[kk].Y * scale; - end_line.X = lines[kk].X * scale; - end_line.TextCharacters.Add(lett[mm]); - } - else - break; - } - if (end_line.Height != 0) - m_lineptrs[page.PageNum].Add(end_line); - } - } - else - { - if (!above_anchor) - val = page.SelAnchorX; - else - val = pos.X; - - /* our first partial line */ - found_first = true; - if (val < lines[kk].X * scale) - m_lineptrs[page.PageNum].Add(lines[kk]); - else - { - start_line = new TextLine(); - start_line.TextCharacters = new List<TextCharacter>(); - start_line.Height = 0; - start_line.Scale = m_doczoom; - /* Use either anchor point or mouse pos */ - bool highlight_done = false; - for (int mm = 0; mm < lett.Count; mm++) - { - double letscale = m_doczoom / lett[mm].Scale; - if (lett[mm].X * letscale + lett[mm].Width * letscale >= val) - { - /* In this case, we are done with the - * highlight section as it only - * depends upon the first character - * we encounter and the line end. - * But we must continue to add in - * the selected characters */ - if (!highlight_done) - { - start_line.Color = m_textselectcolor; - /* special color for debug */ - /* start_line.Color = "#40FF0000"; */ - start_line.Height = lines[kk].Height * scale; - start_line.Width = lines[kk].X * scale + lines[kk].Width * scale - lett[mm].X * letscale; - start_line.X = lett[mm].X * letscale; - start_line.Y = lines[kk].Y * scale; - highlight_done = true; - } - start_line.TextCharacters.Add(lett[mm]); - } - } - if (start_line.Height > 0) - m_lineptrs[page.PageNum].Add(start_line); - } - } - } - } - } - } - var txtsel = m_textSelect[m_textSelect.Count - 1]; - txtsel.first_line_full = first_line_full; - txtsel.last_line_full = last_line_full; - m_textSelect[m_textSelect.Count - 1] = txtsel; - - /* Adjust for scale before assigning */ - var temp = m_lineptrs[page.PageNum]; - for (int kk = 0; kk < temp.Count; kk++) - { - var rect_item = temp[kk]; - double factor = m_doczoom / rect_item.Scale; - - temp[kk].Height = temp[kk].Height * factor; - temp[kk].Width = temp[kk].Width * factor; - temp[kk].X = temp[kk].X * factor; - temp[kk].Y = temp[kk].Y * factor; - - temp[kk].Scale = m_doczoom; - } - page.SelectedLines = m_lineptrs[page.PageNum]; - } - - /* A fix for handling column cases TODO FIXME */ - private void UpdateSelectionCol(System.Windows.Point pos, DocPage page) - { - bool new_page = true; - TextLine start_line, end_line; - double x = 0, y, w = 0, h; - bool found_first = false; - bool above_anchor = true; - bool first_line_full = false; - bool last_line_full = false; - - for (int kk = 0; kk < m_textSelect.Count; kk++) - if (m_textSelect[kk].pagenum == page.PageNum) - new_page = false; - - /* See if we have gone back to a previous page */ - if (!new_page && page.PageNum != m_textSelect[m_textSelect.Count - 1].pagenum) - { - DocPage curr_page = m_docPages[m_textSelect[m_textSelect.Count - 1].pagenum]; - curr_page.SelHeight = 0; - curr_page.SelWidth = 0; - m_textSelect.RemoveAt(m_textSelect.Count - 1); - m_lineptrs[curr_page.PageNum].Clear(); - curr_page.SelectedLines.Clear(); - } - if (new_page) - { - /* New page */ - page.SelX = pos.X; - page.SelY = pos.Y; - page.SelAnchorX = m_docPages[m_textSelect[m_textSelect.Count - 1].pagenum].SelAnchorX; - if (m_textSelect[m_textSelect.Count - 1].pagenum > page.PageNum) - { - page.SelAnchorY = page.Height; - } - else - { - page.SelAnchorY = 0; - } - page.SelColor = m_regionselect; - textSelectInfo_t info = new textSelectInfo_t(); - info.pagenum = page.PageNum; - info.first_line_full = false; - info.last_line_full = false; - m_textSelect.Add(info); - /* Create new holder for lines highlighted */ - m_lineptrs[page.PageNum] = new LinesText(); - } - - if (page.TextBlocks == null || page.TextBlocks.Count == 0) - return; - - /* Width changes translate across the pages */ - for (int jj = 0; jj < m_textSelect.Count; jj++) - { - DocPage curr_page = m_docPages[m_textSelect[jj].pagenum]; - x = Math.Min(pos.X, curr_page.SelAnchorX); - w = Math.Max(pos.X, curr_page.SelAnchorX) - x; - curr_page.SelX = x; - curr_page.SelWidth = w; - } - /* Height is just the current page */ - y = Math.Min(pos.Y, page.SelAnchorY); - h = Math.Max(pos.Y, page.SelAnchorY) - y; - - /* Determine if we are going up or down */ - if (pos.Y > page.SelAnchorY) - above_anchor = false; - page.SelY = y; - page.SelHeight = h; - - /* Clear out what we currently have */ - m_lineptrs[page.PageNum].Clear(); - - /* Stuff already selected above us */ - if (m_textSelect.Count > 1) - found_first = true; - /* Moving backwards through pages */ - if (m_textSelect.Count > 1 && m_textSelect[m_textSelect.Count - 2].pagenum > page.PageNum) - found_first = false; - - /* To properly handle the multiple columns we have to find the last - * line and make sure that all blocks between our first and last - * line are included. To do this we do an initial step through the - * blocks looking at our intersections */ - int first_block = -1; - int last_block = -1; - for (int jj = 0; jj < page.TextBlocks.Count; jj++ ) - { - var intersect_blk = page.TextBlocks[jj].CheckIntersection(x, y, w, h); - if (intersect_blk == Intersection_t.NONE && first_block != -1) - { - last_block = jj; /* NB: this is just past last block */ - break; - } - else if (intersect_blk != Intersection_t.NONE && first_block == -1) - first_block = jj; /* NB: this is the first block */ - } - if (first_block == -1) - return; - if (last_block == -1) - { - /* Only 1 block */ - last_block = first_block + 1; - } - - for (int jj = first_block; jj < last_block; jj++) - { - /* Text blocks are already scaled. Lines are not */ - var intersect_blk = page.TextBlocks[jj].CheckIntersection(x, y, w, h); - var lines = page.TextBlocks[jj].TextLines; - - if (jj == first_block || jj == last_block - 1) - { - /* Partial cases */ - if (intersect_blk == Intersection_t.FULL) - { - for (int kk = 0; kk < lines.Count; kk++) - m_lineptrs[page.PageNum].Add(lines[kk]); - if (jj == first_block) - { - first_line_full = true; - found_first = true; - } - if (jj == last_block - 1) - { - last_line_full = true; - } - } - else if (intersect_blk == Intersection_t.PARTIAL) - { - for (int kk = 0; kk < lines.Count; kk++) - { - double scale = m_doczoom / lines[kk].Scale; - var intersect_line = lines[kk].CheckIntersection(x * scale, y * scale, w * scale, h * scale); - if (intersect_line == Intersection_t.FULL) - { - m_lineptrs[page.PageNum].Add(lines[kk]); - found_first = true; - if (jj == 0 && kk == 0) - first_line_full = true; - if (jj == page.TextBlocks.Count - 1 && - kk == lines.Count - 1) - last_line_full = true; - - } - else if (intersect_line == Intersection_t.PARTIAL) - { - double val; - var lett = lines[kk].TextCharacters; - - /* Now go through the width. */ - if (found_first) - { - if (above_anchor) - val = page.SelAnchorX; - else - val = pos.X; - - /* our second partial line */ - if (val > lines[kk].X * scale + lines[kk].Width * scale) - m_lineptrs[page.PageNum].Add(lines[kk]); - else - { - /* Use either anchor point or mouse pos */ - end_line = new TextLine(); - end_line.TextCharacters = new List<TextCharacter>(); - end_line.Height = 0; - end_line.Scale = m_doczoom; - for (int mm = 0; mm < lett.Count; mm++) - { - double letscale = m_doczoom / lett[mm].Scale; - if (lett[mm].X * letscale < val) - { - /* Can set to special color for debug */ - end_line.Color = m_textselectcolor; - /* special color for debug */ - //end_line.Color = "#4000FF00"; - end_line.Height = lines[kk].Height * scale; - end_line.Width = lett[mm].X * letscale + lett[mm].Width * letscale - lines[kk].X * scale; - end_line.Y = lines[kk].Y * scale; - end_line.X = lines[kk].X * scale; - end_line.TextCharacters.Add(lett[mm]); - } - else - break; - } - if (end_line.Height != 0) - m_lineptrs[page.PageNum].Add(end_line); - } - } - else - { - if (!above_anchor) - val = page.SelAnchorX; - else - val = pos.X; - - /* our first partial line */ - found_first = true; - if (val < lines[kk].X * scale) - m_lineptrs[page.PageNum].Add(lines[kk]); - else - { - start_line = new TextLine(); - start_line.TextCharacters = new List<TextCharacter>(); - start_line.Height = 0; - start_line.Scale = m_doczoom; - /* Use either anchor point or mouse pos */ - for (int mm = 0; mm < lett.Count; mm++) - { - double letscale = m_doczoom / lett[mm].Scale; - if (lett[mm].X * letscale + lett[mm].Width * letscale >= val) - { - start_line.Color = m_textselectcolor; - /* special color for debug */ - //start_line.Color = "#40FF0000"; - start_line.Height = lines[kk].Height * scale; - start_line.Width = lines[kk].X * scale + lines[kk].Width * scale - lett[mm].X * letscale; - start_line.X = lett[mm].X * letscale; - start_line.Y = lines[kk].Y * scale; - start_line.TextCharacters.Add(lett[mm]); - break; - } - } - if (start_line.Height > 0) - m_lineptrs[page.PageNum].Add(start_line); - } - } - } - } - } - } - else - { - /* Add all the lines for the blocks between the first and last */ - for (int kk = 0; kk < lines.Count; kk++) - m_lineptrs[page.PageNum].Add(lines[kk]); - } - } - - var txtsel = m_textSelect[m_textSelect.Count - 1]; - txtsel.first_line_full = first_line_full; - txtsel.last_line_full = last_line_full; - m_textSelect[m_textSelect.Count - 1] = txtsel; - - /* Adjust for scale before assigning */ - var temp = m_lineptrs[page.PageNum]; - for (int kk = 0; kk < temp.Count; kk++) - { - var rect_item = temp[kk]; - double factor = m_doczoom / rect_item.Scale; - - temp[kk].Height = temp[kk].Height * factor; - temp[kk].Width = temp[kk].Width * factor; - temp[kk].X = temp[kk].X * factor; - temp[kk].Y = temp[kk].Y * factor; - - temp[kk].Scale = m_doczoom; - } - page.SelectedLines = m_lineptrs[page.PageNum]; - } - - private void CheckIfSelected() - { - m_textselected = false; - - if (m_selectall) - { - SetSelectAll(m_blockcolor); - m_selectall = false; - } - /* Check if anything was selected */ - for (int kk = 0; kk < m_lineptrs.Count; kk++) - { - if (m_lineptrs[kk].Count > 0) - { - m_textselected = true; - break; - } - } - } - - /* Rect should be removed */ - private void PageLeftClickUp(object sender, MouseButtonEventArgs e) - { - m_intxtselect = false; - CheckIfSelected(); - } - - private void StepScroll(int stepsize) - { - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - if (viewer != null) - { - var scrollpos = viewer.VerticalOffset; - viewer.ScrollToVerticalOffset(scrollpos + stepsize); - } - } - - private void ResetScroll() - { - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - if (viewer != null) - viewer.ScrollToVerticalOffset(0); - } - - /* Recursive call to find the scroll viewer */ - private ScrollViewer FindScrollViewer(DependencyObject d) - { - if (d is ScrollViewer) - return d as ScrollViewer; - - for (int i = 0; i < VisualTreeHelper.GetChildrenCount(d); i++) - { - var sw = FindScrollViewer(VisualTreeHelper.GetChild(d, i)); - if (sw != null) return sw; - } - return null; - } - - /* Only worry about cases where we are moving and left button is down */ - private void ListPreviewMouseMove(object sender, System.Windows.Input.MouseEventArgs e) - { - var relPoint = e.GetPosition(xaml_PageList); - var absPoint = this.PointToScreen(relPoint); - /* Console.Write("abs Y position = " + absPoint.Y + "\n"); - Console.Write("rel Y position = " + relPoint.Y + "\n"); - Console.Write("Height is = " + (this.Top + this.Height) + "\n"); */ - - if (xaml_PageList.IsMouseCaptured == true) - { - if (!m_intxtselect) - { - xaml_PageList.ReleaseMouseCapture(); - e.Handled = true; - return; - } - - if (relPoint.Y < Constants.SCROLL_EDGE_BUFFER || - absPoint.Y > (this.Top + this.Height - Constants.SCROLL_EDGE_BUFFER)) - { - if (m_dispatcherTimer == null) - { - m_dispatcherTimer = new System.Windows.Threading.DispatcherTimer(); - m_dispatcherTimer.Tick += new EventHandler(dispatcherTimerTick); - m_dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0, Constants.DISPATCH_TIME); - } - if (m_dispatcherTimer.IsEnabled == false) - m_dispatcherTimer.Start(); - e.Handled = true; - } - - /* This is not desirable, but the scrollviewer behaves badly - * when it has captured the mouse and we move beyond the - * range. So we wont allow it */ - if (relPoint.Y < 0 || - absPoint.Y > (this.Top + this.Height) - Constants.SCROLL_EDGE_BUFFER / 2.0) - { - xaml_PageList.ReleaseMouseCapture(); - e.Handled = true; - if (m_dispatcherTimer != null && m_dispatcherTimer.IsEnabled == true) - m_dispatcherTimer.Stop(); - return; - } - } - } - - private void ListPreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e) - { - if (m_dispatcherTimer != null && m_dispatcherTimer.IsEnabled) - { - m_dispatcherTimer.Stop(); - } - } - - private void ListMouseLeave(object sender, System.Windows.Input.MouseEventArgs e) - { - if (m_dispatcherTimer != null && m_dispatcherTimer.IsEnabled) - { - m_dispatcherTimer.Stop(); - } - if (xaml_PageList.IsMouseCaptured == true) - xaml_PageList.ReleaseMouseCapture(); - } - - /* Get mouse position, update selection accordingly */ - private void dispatcherTimerTick(object sender, EventArgs e) - { - var position = this.PointToScreen(Mouse.GetPosition(xaml_PageList)); - /* Console.Write("Y position = " + position.Y + "\n"); - Console.Write("Top position = " + this.Top + "\n"); - Console.Write("Bottom position = " + (this.Top + this.Height) + "\n"); */ - DocPage page; - int page_num; - - if (!xaml_PageList.IsMouseCaptured) - { - //Console.Write("Lost capture\n"); - return; - } - /*else - { - Console.Write("Have capture\n"); - } */ - /* Get our most recent page */ - var pageinfo = m_textSelect[m_textSelect.Count - 1]; - page_num = pageinfo.pagenum; - - /* Scrolling up */ - if (position.Y > this.Top + this.Height - Constants.SCROLL_EDGE_BUFFER) - { - /* See if we have the last line for this page */ - if (pageinfo.last_line_full) - { - page_num = page_num + 1; - m_lastY = 0; - if (page_num >= m_num_pages) - return; - } - page = m_docPages[page_num]; - StepScroll(Constants.SCROLL_STEP); - /* Set position for proper selection update */ - m_lastY = m_lastY + Constants.SCROLL_STEP; - if (m_lastY > m_maxY) - m_lastY = m_maxY; - position.Y = m_lastY; - UpdateSelection(position, page); - } - else if (position.Y < this.Top + Constants.SCROLL_EDGE_BUFFER) - { - /* See if we have the first line for this page */ - if (pageinfo.first_line_full) - { - if (page_num <= 0) - return; - page_num = page_num - 1; - m_lastY = m_docPages[page_num].Height; - } - page = m_docPages[page_num]; - StepScroll(-Constants.SCROLL_STEP); - /* Set position for proper selection update */ - m_lastY = m_lastY - Constants.SCROLL_STEP; - if (m_lastY < 0) - m_lastY = 0; - position.Y = m_lastY; - UpdateSelection(position, page); - } - } - - private void ListPreviewLeftButtonUp(object sender, MouseButtonEventArgs e) - { - if (m_dispatcherTimer != null && m_dispatcherTimer.IsEnabled) - { - m_dispatcherTimer.Stop(); - } - } - - private void ShowContextMenu(object sender, MouseButtonEventArgs e) - { - if (this.Cursor != System.Windows.Input.Cursors.IBeam) - return; - - var contextmenu = new System.Windows.Controls.ContextMenu(); - Canvas can = ((FrameworkElement)e.Source).Parent as Canvas; - var page = ((FrameworkElement)e.Source).DataContext as DocPage; - if (can == null || page == null) - return; - - var posit = e.GetPosition(can); - ContextMenu_t info = new ContextMenu_t(); - info.mouse_position = posit; - info.page_num = page.PageNum; - can.ContextMenu = contextmenu; - - if (m_textselected || m_selectall) - { - var m1 = new System.Windows.Controls.MenuItem(); - m1.Header = "Copy"; - - /* amazing what I have to do here to get the icon out of the - * resources into something that wpf can use */ - var iconres = Properties.Resources.copy; - var bitmap = iconres.ToBitmap(); - using (MemoryStream memory = new MemoryStream()) - { - bitmap.Save(memory, System.Drawing.Imaging.ImageFormat.Png); - memory.Position = 0; - BitmapImage bitmapImage = new BitmapImage(); - bitmapImage.BeginInit(); - bitmapImage.StreamSource = memory; - bitmapImage.CacheOption = BitmapCacheOption.OnLoad; - bitmapImage.EndInit(); - Image iconImage = new Image(); - iconImage.Source = bitmapImage; - m1.Icon = iconImage; - m1.Click += cntxMenuCopy; - contextmenu.Items.Add(m1); - } - - var m6 = new System.Windows.Controls.MenuItem(); - m6.Header = "Deselect All"; - m6.Click += cntxMenuDeselectAll; - contextmenu.Items.Add(m6); - - /* Below to be enabled when we add annotations */ - /* - var ma1 = new System.Windows.Controls.MenuItem(); - ma1.Header = "Highlight"; - ma1.Click += cntxMenuHighlight; - contextmenu.Items.Add(ma1); - - var ma2 = new System.Windows.Controls.MenuItem(); - ma2.Header = "Underline"; - ma2.Click += cntxMenuUnderline; - contextmenu.Items.Add(ma2); - - var ma3 = new System.Windows.Controls.MenuItem(); - ma3.Header = "Strikeout"; - ma3.Click += cntxMenuStrike; - contextmenu.Items.Add(ma3);*/ - - } - var m2 = new System.Windows.Controls.MenuItem(); - m2.Header = "Select Line"; - m2.Click += cntxMenuSelectLine; - m2.Tag = info; - contextmenu.Items.Add(m2); - - var m3 = new System.Windows.Controls.MenuItem(); - m3.Header = "Select Block"; - m3.Click += cntxMenuSelectBlock; - m3.Tag = info; - contextmenu.Items.Add(m3); - - var m4 = new System.Windows.Controls.MenuItem(); - m4.Header = "Select Page"; - m4.Click += cntxMenuSelectPage; - m4.Tag = info; - contextmenu.Items.Add(m4); - - var m5 = new System.Windows.Controls.MenuItem(); - m5.Header = "Select All"; - m5.Click += cntxMenuSelectAll; - contextmenu.Items.Add(m5); - } - - private void CopyTextDone(object sender, RunWorkerCompletedEventArgs e) - { - String result = (String) e.Result; - xaml_CopyTextProgress.Visibility = System.Windows.Visibility.Collapsed; - xaml_CopyTextProgress.Value = 0; - - try - { - System.Windows.Clipboard.SetText(result); - } - catch - { - return; - } - } - - private void CopyTextWork(object sender, DoWorkEventArgs e) - { - String output = null; - String fullstring = null; - BackgroundWorker worker = sender as BackgroundWorker; - - for (int k = 0; k < m_num_pages; k++) - { - output = mu_doc.GetText(k, textout_t.TEXT); - if (output != null) - fullstring = fullstring + output; - - double percent = 100 * (double)(k + 1) / (double)m_num_pages; - worker.ReportProgress((int)percent, output); - - if (worker.CancellationPending == true) - { - e.Cancel = true; - break; - } - } - e.Result = fullstring; - } - - private void CopyTextProgress(object sender, ProgressChangedEventArgs e) - { - String output = (String)(e.UserState); - xaml_CopyTextProgress.Value = e.ProgressPercentage; - } - - private void cntxMenuCopy(object sender, RoutedEventArgs e) - { - if (m_selectall) - { - /* Start a thread to go through and copy the pages to the - * clipboard */ - m_copytext = new BackgroundWorker(); - m_copytext.WorkerReportsProgress = true; - m_copytext.WorkerSupportsCancellation = true; - m_copytext.DoWork += new DoWorkEventHandler(CopyTextWork); - m_copytext.RunWorkerCompleted += new RunWorkerCompletedEventHandler(CopyTextDone); - m_copytext.ProgressChanged += new ProgressChangedEventHandler(CopyTextProgress); - xaml_CopyTextProgress.Visibility = System.Windows.Visibility.Visible; - m_copytext.RunWorkerAsync(); - return; - } - - /* Go through and get each line of text */ - String result = null; - - for (int kk = 0; kk < m_textSelect.Count; kk++) - { - var lines = m_lineptrs[m_textSelect[kk].pagenum]; - for (int jj = 0; jj < lines.Count; jj++) - { - var text = lines[jj].TextCharacters; - for (int mm = 0; mm < text.Count; mm++) - { - result += text[mm].character; - } - result += "\r\n"; - } - } - System.Windows.Clipboard.SetText(result); - } - - private void cntxMenuSelectLine(object sender, RoutedEventArgs e) - { - var mi = sender as System.Windows.Controls.MenuItem; - ContextMenu_t info = (ContextMenu_t)mi.Tag; - var page = m_docPages[info.page_num]; - - InitTextSelection(page); - - page.SelX = 0; - page.SelY = info.mouse_position.Y - 1; - page.SelAnchorX = 0; - page.SelAnchorY = info.mouse_position.Y - 1; - page.SelColor = m_regionselect; - - /* Create new holder for lines highlighted */ - m_lineptrs[page.PageNum] = new LinesText(); - - Point pos = new Point(); - pos.X = page.Width; - pos.Y += info.mouse_position.Y + 1; - - UpdateSelection(pos, page); - CheckIfSelected(); - } - - /* This one requires its own special handling TODO FIXME */ - private void cntxMenuSelectBlock(object sender, RoutedEventArgs e) - { - var mi = sender as System.Windows.Controls.MenuItem; - ContextMenu_t info = (ContextMenu_t)mi.Tag; - var page = m_docPages[info.page_num]; - bool found = false; - int jj; - - InitTextSelection(page); - - /* Find the block that we are in */ - for (jj = 0; jj < page.TextBlocks.Count; jj++) - { - var intersect_blk = page.TextBlocks[jj].CheckIntersection(info.mouse_position.X, info.mouse_position.Y, 1, 1); - if (intersect_blk != Intersection_t.NONE) - { - found = true; - break; - } - } - if (found) - { - page.SelX = page.TextBlocks[jj].X; - page.SelY = page.TextBlocks[jj].Y; - page.SelAnchorX = page.TextBlocks[jj].X; - page.SelAnchorY = page.TextBlocks[jj].Y; - page.SelColor = m_regionselect; - - /* Create new holder for lines highlighted */ - m_lineptrs[page.PageNum] = new LinesText(); - - Point pos = new Point(); - pos.X = page.TextBlocks[jj].X + page.TextBlocks[jj].Width; - pos.Y = page.TextBlocks[jj].Y + page.TextBlocks[jj].Height; - - UpdateSelection(pos, page); - CheckIfSelected(); - } - else - m_textselected = false; - } - - private void SelectFullPage(int page_num) - { - var page = m_docPages[page_num]; - - InitTextSelection(page); - - page.SelX = 0; - page.SelY = 0; - page.SelAnchorX = 0; - page.SelAnchorY = 0; - page.SelColor = m_regionselect; - - /* Create new holder for lines highlighted */ - m_lineptrs[page.PageNum] = new LinesText(); - - Point pos = new Point(); - pos.X = page.Width; - pos.Y = page.Height; - - UpdateSelection(pos, page); - } - - private void cntxMenuSelectPage(object sender, RoutedEventArgs e) - { - var mi = sender as System.Windows.Controls.MenuItem; - ContextMenu_t info = (ContextMenu_t)mi.Tag; - - SelectFullPage(info.page_num); - CheckIfSelected(); - } - - private void cntxMenuSelectAll(object sender, RoutedEventArgs e) - { - var mi = sender as System.Windows.Controls.MenuItem; - if (m_textSelect != null) - ClearSelections(); - else - m_textSelect = new List<textSelectInfo_t>(); - - m_selectall = true; - SetSelectAll(m_textselectcolor); - } - - private void SetSelectAll(String color) - { - if (!m_init_done) - return; - - for (int kk = 0; kk < m_num_pages; kk++) - { - if (m_docPages[kk] != null && m_docPages[kk].TextBlocks != null) - { - int num_blocks = m_docPages[kk].TextBlocks.Count; - for (int jj = 0; jj < num_blocks; jj++) - m_docPages[kk].TextBlocks[jj].Color = color; - } - } - } - - private void cntxMenuDeselectAll(object sender, RoutedEventArgs e) - { - ClearSelections(); - } - - private void SelectAllCommand(object sender, ExecutedRoutedEventArgs e) - { - if (m_init_done) - cntxMenuSelectAll(sender, e); - } - - private void CopyCommand(object sender, ExecutedRoutedEventArgs e) - { - if (m_init_done) - cntxMenuCopy(sender, e); - } - - private void CancelCopyText(object sender, RoutedEventArgs e) - { - if (m_copytext != null && m_copytext.IsBusy) - m_copytext.CancelAsync(); - } - - /* To add with annotation support */ - /* - private void cntxMenuHighlight(object sender, RoutedEventArgs e) - { - - } - - private void cntxMenuUnderline(object sender, RoutedEventArgs e) - { - - } - - private void cntxMenuStrike(object sender, RoutedEventArgs e) - { - - } - */ - #endregion TextSelection - - private void OnAboutClick(object sender, RoutedEventArgs e) - { - String muversion; - About about = new About(this); - var desc_static = about.Description; - String desc; - - /* Get our gs and mupdf version numbers to add to the description */ - mu_doc.GetVersion(out muversion); - if (muversion == null) - desc = desc_static + "\nMuPDF DLL: Not Found"; - else - { - if (mu_doc.is64bit) - { - desc = desc_static + "\nUsing MuPDF Version " + muversion + " 64 bit\n"; - } - else - { - desc = desc_static + "\nUsing MuPDF Version " + muversion + " 32 bit\n"; - } - } - String gs_vers = m_ghostscript.GetVersion(); - if (gs_vers == null) - desc = desc + "\nGhostscript DLL: Not Found"; - else - if (mu_doc.is64bit) - { - desc = desc + "\nGhostscript DLL: " + gs_vers + " 64 bit\n"; - } - else - { - desc = desc + "\nGhostscript DLL: " + gs_vers + " 64 bit\n"; - } - about.description.Text = desc; - about.ShowDialog(); - } - - private void HelpCommand(object sender, ExecutedRoutedEventArgs e) - { - OnHelpClick(sender, e); - } - - private void OnHelpClick(object sender, RoutedEventArgs e) - { - - } - - private void CloseFile(object sender, RoutedEventArgs e) - { - CleanUp(); - DimSelections(); - } - - private double GetTotalHeightZoom() - { - return m_totalpageheight * m_doczoom + (m_num_pages - 1) * Constants.PAGE_MARGIN; - } - - private double GetTotalHeightNoZoom() - { - return m_totalpageheight + (m_num_pages - 1) * Constants.PAGE_MARGIN; - } - - private double GetViewPortSize() - { - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - return viewer.ViewportHeight; - } - - private void SetThumbwidth() - { - double percent = GetViewPortSize() / GetTotalHeightZoom(); - double range = xaml_VerticalScroll.Maximum - xaml_VerticalScroll.Minimum; - xaml_VerticalScroll.SetThumbLength(percent * range); - } - - private void AdjustScrollPercent(double percent) - { - double curr_value = xaml_VerticalScroll.Value; - double range = xaml_VerticalScroll.Maximum; - double step = range * percent; - - xaml_VerticalScroll.Value = curr_value + step; - } - - /* Due to the scroll bar on the scroll viewer being wonky on its updating during zooming - * we have to do this ourselves */ - private void VerticalScroll(object sender, System.Windows.Controls.Primitives.ScrollEventArgs e) - { - var mi = sender as System.Windows.Controls.Primitives.ScrollBar; - ScrollViewer viewer = FindScrollViewer(xaml_PageList); - if (viewer == null || mi == null) - return; - - m_ScrolledChanged = true; - - if (e.ScrollEventType == System.Windows.Controls.Primitives.ScrollEventType.ThumbTrack) - { - OffsetScrollPercent(mi.Value / mi.Maximum); - e.Handled = true; - } - else if (e.ScrollEventType == System.Windows.Controls.Primitives.ScrollEventType.First) - { - mi.Value = 0; - viewer.ScrollToTop(); - } - else if (e.ScrollEventType == System.Windows.Controls.Primitives.ScrollEventType.Last) - { - mi.Value = mi.Maximum; - viewer.ScrollToBottom(); - } - else if (e.ScrollEventType == System.Windows.Controls.Primitives.ScrollEventType.SmallDecrement) - { - OffsetScroll(-Constants.VERT_SCROLL_STEP * m_doczoom); - } - else if (e.ScrollEventType == System.Windows.Controls.Primitives.ScrollEventType.SmallIncrement) - { - OffsetScroll(Constants.VERT_SCROLL_STEP * m_doczoom); - } - else if (e.ScrollEventType == System.Windows.Controls.Primitives.ScrollEventType.LargeDecrement) - { - if (m_currpage == 0) - { - mi.Value = 0; - viewer.ScrollToTop(); - } - else - OnBackPageClick(null, null); - } - else if (e.ScrollEventType == System.Windows.Controls.Primitives.ScrollEventType.LargeIncrement) - { - if (m_currpage == m_num_pages - 1) - { - mi.Value = mi.Maximum; - viewer.ScrollToBottom(); - } - else - OnForwardPageClick(null, null); - } - else if (e.ScrollEventType == System.Windows.Controls.Primitives.ScrollEventType.ThumbPosition) - { - OffsetScrollPercent(e.NewValue / mi.Maximum); - } - } - - private void OnAAChecked(object sender, RoutedEventArgs e) - { - var control = sender as System.Windows.Controls.Control; - string Name = control.Name; - - /* It would be nice to uncheck all and then recheck the one - * that we want to avoid the repeated code below, but that puts - * us in a infinite recursion with the call from the xaml Checked - * call */ - - switch (Name) - { - case "xaml_AA_High": - m_AA = AA_t.HIGH; - if (xaml_AA_MedHigh != null) - xaml_AA_MedHigh.IsChecked = false; - if (xaml_AA_Med != null) - xaml_AA_Med.IsChecked = false; - if (xaml_AA_Low != null) - xaml_AA_Low.IsChecked = false; - if (xaml_AA_None != null) - xaml_AA_None.IsChecked = false; - break; - case "xaml_AA_MedHigh": - m_AA = AA_t.MEDHIGH; - if (xaml_AA_High != null) - xaml_AA_High.IsChecked = false; - if (xaml_AA_Med != null) - xaml_AA_Med.IsChecked = false; - if (xaml_AA_Low != null) - xaml_AA_Low.IsChecked = false; - if (xaml_AA_None != null) - xaml_AA_None.IsChecked = false; - break; - case "xaml_AA_Med": - m_AA = AA_t.MED; - if (xaml_AA_High != null) - xaml_AA_High.IsChecked = false; - if (xaml_AA_MedHigh != null) - xaml_AA_MedHigh.IsChecked = false; - if (xaml_AA_Low != null) - xaml_AA_Low.IsChecked = false; - if (xaml_AA_None != null) - xaml_AA_None.IsChecked = false; - break; - case "xaml_AA_Low": - m_AA = AA_t.LOW; - if (xaml_AA_High != null) - xaml_AA_High.IsChecked = false; - if (xaml_AA_MedHigh != null) - xaml_AA_MedHigh.IsChecked = false; - if (xaml_AA_Med != null) - xaml_AA_Med.IsChecked = false; - if (xaml_AA_None != null) - xaml_AA_None.IsChecked = false; - break; - case "xaml_AA_None": - m_AA = AA_t.NONE; - if (xaml_AA_High != null) - xaml_AA_High.IsChecked = false; - if (xaml_AA_MedHigh != null) - xaml_AA_MedHigh.IsChecked = false; - if (xaml_AA_Med != null) - xaml_AA_Med.IsChecked = false; - if (xaml_AA_Low != null) - xaml_AA_Low.IsChecked = false; - break; - } - if (mu_doc != null) - mu_doc.SetAA(m_AA); - if (m_init_done) - RenderRange(m_currpage, false, zoom_t.NO_ZOOM, 0); - } - - private AA_t GetAA() - { - if (xaml_AA_High.IsChecked) - return AA_t.HIGH; - else if (xaml_AA_MedHigh.IsChecked) - return AA_t.MEDHIGH; - else if (xaml_AA_Med.IsChecked) - return AA_t.MED; - else if (xaml_AA_Low.IsChecked) - return AA_t.LOW; - else - return AA_t.NONE; - } - - private void SetAA(AA_t aa) - { - xaml_AA_High.IsChecked = false; - xaml_AA_MedHigh.IsChecked = false; - xaml_AA_Med.IsChecked = false; - xaml_AA_Low.IsChecked = false; - xaml_AA_None.IsChecked = false; - - switch (aa) - { - case AA_t.HIGH: - xaml_AA_High.IsChecked = true; - break; - case AA_t.MEDHIGH: - xaml_AA_MedHigh.IsChecked = true; - break; - case AA_t.MED: - xaml_AA_High.IsChecked = true; - break; - case AA_t.LOW: - xaml_AA_High.IsChecked = true; - break; - case AA_t.NONE: - xaml_AA_High.IsChecked = true; - break; - } - } - - private void AnnotationOn(object sender, RoutedEventArgs e) - { - if (!m_init_done) - return; - m_showannot = true; - RenderRange(m_currpage, false, zoom_t.NO_ZOOM, 0); - } - - private void AnnotationOff(object sender, RoutedEventArgs e) - { - if (!m_init_done) - return; - m_showannot = false; - RenderRange(m_currpage, false, zoom_t.NO_ZOOM, 0); - } - - /* Print preview rendering and control */ - private void RenderPrintPreview(object sender, DoWorkEventArgs e) - { - BackgroundWorker worker = sender as BackgroundWorker; - List<object> genericlist = e.Argument as List<object>; - int k = (int)genericlist[0]; - int desiredMax = Constants.MAX_PRINT_PREVIEW_LENGTH; - - Point ras_size; - double scale_factor = 1.0; - Byte[] bitmap; - BlocksText charlist; - status_t code; - Annotate_t annot; - - if (ComputePageSize(k, scale_factor, out ras_size) == status_t.S_ISOK) - { - /* Adjust the scale factor to ensure max length is set as desired */ - int maxSize = Math.Max((int)ras_size.X, (int)ras_size.Y); - scale_factor = (double)desiredMax / (double)maxSize; - ComputePageSize(k, scale_factor, out ras_size); - printPreviewPage_t result; - - try - { - bitmap = new byte[(int)ras_size.X * (int)ras_size.Y * 4]; - code = (status_t)mu_doc.RenderPage(k, bitmap, (int)ras_size.X, - (int)ras_size.Y, scale_factor, false, true, - false, out charlist, m_showannot, out annot); - result.width = (int)ras_size.X; - result.height = (int)ras_size.Y; - result.bitmap = bitmap; - ComputePageSize(k, 1.0, out ras_size); - result.height_inches = ras_size.Y / 72.0; - result.width_inches = ras_size.X / 72.0; - e.Result = result; - } - catch (OutOfMemoryException em) - { - Console.WriteLine("Memory allocation failed print preview page " + k + em.Message + "\n"); - } - } - } - - private void RenderPrintPreviewCompleted(object sender, RunWorkerCompletedEventArgs e) - { - BitmapSource BitMapSrc; - printPreviewPage_t Result = (printPreviewPage_t)e.Result; - - int stride = Result.width * 4; - BitMapSrc = BitmapSource.Create(Result.width, Result.height, - 72, 72, PixelFormats.Pbgra32, BitmapPalettes.Halftone256, Result.bitmap, stride); - - m_printcontrol.SetImage(BitMapSrc, Result.height_inches, Result.width_inches); - } - - private bool PrintDiagUpdatePreview(object PrintDiag, PrintDiagEventArgs args) - { - try - { - m_printerpreview = new BackgroundWorker(); - m_printerpreview.WorkerReportsProgress = false; - m_printerpreview.WorkerSupportsCancellation = false; - m_printerpreview.DoWork += new DoWorkEventHandler(RenderPrintPreview); - m_printerpreview.RunWorkerCompleted += new RunWorkerCompletedEventHandler(RenderPrintPreviewCompleted); - var arguments = new List<object>(); - arguments.Add(args.m_page); - m_printerpreview.RunWorkerAsync(arguments); - } - catch (OutOfMemoryException e) - { - Console.WriteLine("Memory allocation failed during printpreview render\n"); - ShowMessage(NotifyType_t.MESS_ERROR, "Out of memory: " + e.Message); - } - return true; - } - - private void PrintDiagPrint(object PrintDiag) - { - /* If file is already xps then gs need not do this */ - if (!m_isXPS) - { - xaml_DistillProgress.Value = 0; - if (m_ghostscript.CreateXPS(m_currfile, Constants.DEFAULT_GS_RES, m_num_pages, m_printcontrol) == gsStatus.GS_BUSY) - { - ShowMessage(NotifyType_t.MESS_STATUS, "GS currently busy"); - return; - } - else - { - xaml_CancelDistill.Visibility = System.Windows.Visibility.Collapsed; - xaml_DistillName.Text = "Convert to XPS"; - xaml_DistillName.FontWeight = FontWeights.Bold; - xaml_DistillGrid.Visibility = System.Windows.Visibility.Visible; - } - } - else - PrintXPS(m_currfile); - } - } -}
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