diff options
Diffstat (limited to 'platform/winrt/mupdf_cpp/MainPage.xaml.cpp')
| -rw-r--r-- | platform/winrt/mupdf_cpp/MainPage.xaml.cpp | 2394 |
1 files changed, 0 insertions, 2394 deletions
diff --git a/platform/winrt/mupdf_cpp/MainPage.xaml.cpp b/platform/winrt/mupdf_cpp/MainPage.xaml.cpp deleted file mode 100644 index a57a7a23..00000000 --- a/platform/winrt/mupdf_cpp/MainPage.xaml.cpp +++ /dev/null @@ -1,2394 +0,0 @@ -// -// MainPage.xaml.cpp -// Implementation of the MainPage class. -// - -#include "pch.h" -#include "MainPage.xaml.h" -#include <regex> -#include <sstream> -#include "DXGI1_3.h" - -#define LOOK_AHEAD 1 /* A +/- count on the pages to pre-render */ -#define THUMB_PREADD 10 -#define MIN_SCALE 0.5 - -#define SCALE_THUMB 0.1 -#define PRINT_PREVIEW_SCALE 0.5 - -#define BLANK_WIDTH 17 -#define BLANK_HEIGHT 22 - -#define KEYBOARD_ZOOM_STEP 0.25 -#define ZOOM_MAX 4 -#define ZOOM_MIN 0.25 - -#define KEY_PLUS 0xbb -#define KEY_MINUS 0xbd -#define ZOOM_IN 0 -#define ZOOM_OUT 1 - -#define SEARCH_FIT 672 -#define VS_LARGE 1366 -#define VS_SMALL 500 - -static float screenScale = 1; - -using namespace mupdf_cpp; -using namespace Windows::Foundation; -using namespace Windows::UI::Xaml; -using namespace Windows::UI::Xaml::Controls; -using namespace Windows::UI::Xaml::Controls::Primitives; -using namespace Windows::UI::Xaml::Data; -using namespace Windows::UI::Xaml::Media; -using namespace Windows::UI::Xaml::Navigation; -using namespace Windows::Graphics::Display; -using namespace Windows::Graphics::Printing; -using namespace Windows::UI::Core; - -//****************** Added ***************** -using namespace Windows::Storage::Pickers; -using namespace Windows::Devices::Enumeration; -using namespace concurrency; -using namespace Windows::Graphics::Imaging; -//****************** End Add **************** - -#ifndef NDEBUG -unsigned int _mainThreadId = 0U; - -#ifdef __cplusplus -extern "C" { -#endif - - // The IsMainThread function returns true if the current thread is the app's main thread and false otherwise. - bool IsMainThread() - { - return (_mainThreadId == GetCurrentThreadId()); - } - - // The IsBackgroundThread function returns false if the current thread is the app's main thread and true otherwise. - bool IsBackgroundThread() - { - return (_mainThreadId != GetCurrentThreadId()); - } - - // The RecordMainThread function registers the main thread ID for use by the IsMainThread and IsBackgroundThread functions. - void RecordMainThread() - { - _mainThreadId = GetCurrentThreadId(); - } - -#ifdef __cplusplus -} -#endif - -#endif /* not NDEBUG */ - -MainPage::MainPage() -{ - InitializeComponent(); - Application::Current->Suspending += - ref new SuspendingEventHandler(this, &MainPage::App_Suspending); - Application::Current->UnhandledException += - ref new UnhandledExceptionEventHandler(this, &MainPage::ExceptionHandler); - m_textcolor="#402572AC"; - m_linkcolor="#40AC7225"; - mu_doc = nullptr; - m_docPages = ref new Platform::Collections::Vector<DocumentPage^>(); - m_thumbnails = ref new Platform::Collections::Vector<DocumentPage^>(); - m_page_link_list = ref new Platform::Collections::Vector<IVector<RectList^>^>(); - m_text_list = ref new Platform::Collections::Vector<RectList^>(); - m_linkset = ref new Platform::Collections::Vector<int>(); - if (m_docPages == nullptr || m_thumbnails == nullptr || - m_page_link_list == nullptr || m_text_list == nullptr || - m_linkset == nullptr) - throw ref new FailureException("Document allocation failed!"); - - SetUpDirectX(); - RegisterForPrinting(); - CleanUp(); -#ifndef NDEBUG - RecordMainThread(); -#endif - /* So that we can catch special loading events (e.g. open with) */ - _pageLoadedHandlerToken = Loaded += ref new RoutedEventHandler(this, &MainPage::Page_Loaded); -} - -/* You need a Direct3D device to create a Direct2D device. This gets stuff - set up for Direct2D printing support */ -void MainPage::SetUpDirectX() -{ - UINT creation_flags = D3D11_CREATE_DEVICE_BGRA_SUPPORT; - ComPtr<IDXGIDevice> dxgi_device; - D2D1_FACTORY_OPTIONS options; - ZeroMemory(&options, sizeof(D2D1_FACTORY_OPTIONS)); - D3D_FEATURE_LEVEL feature_levels[] = - { - D3D_FEATURE_LEVEL_11_1, - D3D_FEATURE_LEVEL_11_0, - D3D_FEATURE_LEVEL_10_1, - D3D_FEATURE_LEVEL_10_0, - D3D_FEATURE_LEVEL_9_3, - D3D_FEATURE_LEVEL_9_2, - D3D_FEATURE_LEVEL_9_1 - }; - ComPtr<ID3D11Device> device; - ComPtr<ID3D11DeviceContext> context; - -#if defined(_DEBUG) - options.debugLevel = D2D1_DEBUG_LEVEL_INFORMATION; -#endif - - ThrowIfFailed(D3D11CreateDevice(nullptr, D3D_DRIVER_TYPE_HARDWARE, 0, - creation_flags, feature_levels, ARRAYSIZE(feature_levels), - D3D11_SDK_VERSION, &device, &m_featureLevel, &context)); - ThrowIfFailed(device.As(&m_d3d_device)); - ThrowIfFailed(context.As(&m_d3d_context)); - ThrowIfFailed(m_d3d_device.As(&dxgi_device)); - ThrowIfFailed(D2D1CreateFactory(D2D1_FACTORY_TYPE_MULTI_THREADED, - __uuidof(ID2D1Factory1), &options, &m_d2d_factory)); - ThrowIfFailed(CoCreateInstance(CLSID_WICImagingFactory, nullptr, - CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&m_wic_factory))); - m_d2d_factory->CreateDevice(dxgi_device.Get(), &m_d2d_device); -} - -/* Used during launch of application from file when application was not - already running */ -void MainPage::Page_Loaded(Object^ sender, RoutedEventArgs^ e) -{ - MainPage^ rootPage = dynamic_cast<MainPage^>(sender); - if (rootPage->FileEvent != nullptr) - { - /* Launched with an "open with", or as default app */ - if (rootPage->FileEvent->Files->Size > 0) - { - IStorageItem ^file = rootPage->FileEvent->Files->GetAt(0); - StorageFile ^sfile = safe_cast<StorageFile^>(file); - - OpenDocumentPrep(sfile); - } - } -} - -/* Used during launch of application from file when application was already - running */ -void MainPage::FromFile() -{ - if (this->FileEvent != nullptr) - { - /* Launched with an "open with", or as default app */ - if (this->FileEvent->Files->Size > 0) - { - IStorageItem ^file = this->FileEvent->Files->GetAt(0); - StorageFile ^sfile = safe_cast<StorageFile^>(file); - - OpenDocumentPrep(sfile); - } - } -} - -/// <summary> -/// Invoked when this page is about to be displayed in a Frame. -/// </summary> -/// <param name="e">Event data that describes how this page was reached. The Parameter -/// property is typically used to configure the page.</param> -void MainPage::OnNavigatedTo(NavigationEventArgs^ e) -{ - -} - -void MainPage::ExceptionHandler(Object^ sender, UnhandledExceptionEventArgs^ e) -{ - if (!this->m_init_done) - { - /* Windows 8.1 has some weird issues that occur before we have even tried - to open a document. For example rolling the mouse wheel throws an - exception in 8.1 but not 8.0. This is clearly a windows issue. For - now mark as handled and move on which seems to be fine */ - e->Handled = true; - } - else - { - e->Handled = true; - NotifyUser("An error was encountered", ErrorMessage); - } -} - -/* We need to clean up (Trim) the directX memory on suspension */ -void MainPage::App_Suspending(Object^ sender, SuspendingEventArgs^ e) -{ - ComPtr<IDXGIDevice3> pDXGIDevice; - ThrowIfFailed(m_d3d_device.As(&pDXGIDevice)); - pDXGIDevice->Trim(); -} - -void MainPage::ExitInvokedHandler(Windows::UI::Popups::IUICommand^ command) -{ - -} - -void MainPage::OKInvokedHandler(Windows::UI::Popups::IUICommand^ command) -{ - -} - -void MainPage::NotifyUser(String^ strMessage, int type) -{ - MessageDialog^ msg = ref new MessageDialog(strMessage); - UICommand^ ExitCommand = nullptr; - UICommand^ OKCommand = nullptr; - - switch (type) - { - case StatusMessage: - OKCommand = ref new UICommand("OK", - ref new UICommandInvokedHandler(this, &MainPage::OKInvokedHandler)); - msg->Commands->Append(OKCommand); - /// Set the command that will be invoked by default - msg->DefaultCommandIndex = 0; - // Set the command to be invoked when escape is pressed - msg->CancelCommandIndex = 1; - break; - case ErrorMessage: - ExitCommand = ref new UICommand("Exit", - ref new UICommandInvokedHandler(this, &MainPage::ExitInvokedHandler)); - msg->Commands->Append(ExitCommand); - /// Set the command that will be invoked by default - msg->DefaultCommandIndex = 0; - // Set the command to be invoked when escape is pressed - msg->CancelCommandIndex = 1; - break; - default: - break; - } - // Show the message dialog - msg->ShowAsync(); -} - -void MainPage::Picker(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - /* If we are actively rendering a document to the print thread then notify the - user that they will need to wait */ - if (m_print_active == PRINT_ACTIVE) - { - int total_pages = GetPrintPageCount(); - auto str1 = "Cannot open new file. Currently rendering page " + - m_curr_print_count + " of " + total_pages + " for print queue"; - NotifyUser(str1, StatusMessage); - return; - } - - FileOpenPicker^ openPicker = ref new FileOpenPicker(); - openPicker->ViewMode = PickerViewMode::List; - openPicker->SuggestedStartLocation = PickerLocationId::DocumentsLibrary; - openPicker->FileTypeFilter->Append(".pdf"); - openPicker->FileTypeFilter->Append(".xps"); - openPicker->FileTypeFilter->Append(".cbz"); - openPicker->FileTypeFilter->Append(".oxps"); - - create_task(openPicker->PickSingleFileAsync()).then([this](StorageFile^ file) - { - if (file) - { - this->OpenDocumentPrep(file); - } - else - { - /* Nothing selected */ - } - }); -} - -/* Set the page with the new raster information */ -void MainPage::UpdatePage(int page_num, InMemoryRandomAccessStream^ ras, - Point ras_size, Page_Content_t content_type, double zoom_in) -{ - assert(IsMainThread()); - - WriteableBitmap ^bmp = ref new WriteableBitmap((int)ras_size.X, (int) ras_size.Y); - if (bmp == nullptr) - { -#ifdef _DEBUG - NotifyUser("BMP UpdatePage Failed Page " + page_num, ErrorMessage); -#endif - return; - } - bmp->SetSource(ras); - - DocumentPage^ doc_page = ref new DocumentPage(); - if (doc_page == nullptr) - { -#ifdef _DEBUG - NotifyUser("doc_page UpdatePage Failed Page " + page_num, ErrorMessage); -#endif - return; - } - doc_page->Image = bmp; - - if (content_type == THUMBNAIL) - { - doc_page->Height = (int) (ras_size.Y / SCALE_THUMB); - doc_page->Width = (int) (ras_size.X / SCALE_THUMB); - } - else - { - doc_page->Height = (int) ras_size.Y; - doc_page->Width = (int) ras_size.X; - } - doc_page->Content = content_type; - doc_page->PageZoom = zoom_in; - - /* We do not want flipview change notification to occur for ourselves */ - m_page_update = true; - this->m_docPages->SetAt(page_num, doc_page); - m_page_update = false; -} - -/* Set the page with the new raster information but only the image data */ -void MainPage::ReplaceImage(int page_num, InMemoryRandomAccessStream^ ras, - Point ras_size, double page_zoom) -{ - assert(IsMainThread()); - - WriteableBitmap ^bmp = ref new WriteableBitmap((int) ras_size.X, (int) ras_size.Y); - if (bmp == nullptr) - { -#ifdef _DEBUG - NotifyUser("BMP ReplaceImage Failed Page " + page_num, ErrorMessage); -#endif - return; - } - - bmp->SetSource(ras); - DocumentPage^ doc_page = this->m_docPages->GetAt(page_num); - if (doc_page == nullptr) - { -#ifdef _DEBUG - NotifyUser("doc_page ReplaceImage Failed Page " + page_num, ErrorMessage); -#endif - return; - } - doc_page->Image = bmp; - doc_page->Height = (int) ras_size.Y; - doc_page->Width = (int) ras_size.X; - doc_page->PageZoom = page_zoom; -} - -int MainPage::ComputePageSize(spatial_info_t spatial_info, int page_num, - Point *render_size, float *scale_factor) -{ - Point screenSize; - Point renpageSize; - Point size; - - try - { - size = mu_doc->GetPageSize(page_num); - } - catch (Exception ^except) - { -#ifdef _DEBUG - NotifyUser(except->Message, ErrorMessage); -#endif - return E_FAILURE; - } - - screenSize = spatial_info.size; - screenSize.Y *= screenScale; - screenSize.X *= screenScale; - - float hscale = screenSize.X / size.X; - float vscale = screenSize.Y / size.Y; - float scale = min(hscale, vscale); - renpageSize.X = (float)(size.X * scale * spatial_info.scale_factor); - renpageSize.Y = (float)(size.Y * scale * spatial_info.scale_factor); - - *scale_factor = (float) (scale * spatial_info.scale_factor); - *render_size = renpageSize; - - return S_ISOK; -} - -static Point fitPageToScreen(Point page, Point screen) -{ - Point pageSize; - - float hscale = screen.X / page.X; - float vscale = screen.Y / page.Y; - float scale = min(hscale, vscale); - pageSize.X = floorf(page.X * scale) / page.X; - pageSize.Y = floorf(page.Y * scale) / page.Y; - - return pageSize; -} - -spatial_info_t MainPage::InitSpatial(double scale) -{ - spatial_info_t value; - - value.size.Y = (float) (this->ActualHeight); - value.size.X = (float) (this->ActualWidth); - value.scale_factor = scale; - - return value; -} - -void Prepare_bmp(int width, int height, DataWriter ^dw) -{ - int row_size = width * 4; - int bmp_size = row_size * height + 54; - - dw->WriteString("BM"); - dw->ByteOrder = ByteOrder::LittleEndian; - dw->WriteInt32(bmp_size); - dw->WriteInt16(0); - dw->WriteInt16(0); - dw->WriteInt32(54); - dw->WriteInt32(40); - dw->WriteInt32(width); - dw->WriteInt32(height); - dw->WriteInt16(1); - dw->WriteInt16(32); - dw->WriteInt32(0); - dw->WriteInt32(row_size * height); - dw->WriteInt32(2835); - dw->WriteInt32(2835); - dw->WriteInt32(0); - dw->WriteInt32(0); -} - -void MainPage::ReleasePages(int old_page, int new_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 = old_page - LOOK_AHEAD; k <= old_page + LOOK_AHEAD; k++) - { - if (k < new_page - LOOK_AHEAD || k > new_page + LOOK_AHEAD) - { - if (k >= 0 && k < this->m_num_pages) - { - SetThumb(k); - } - } - } -} - -/* Return this page from a full res image to the thumb image or only set - to thumb if it has not already been set */ -void MainPage::SetThumb(unsigned int page_num) -{ - /* See what is there now */ - auto doc = this->m_docPages->GetAt(page_num); - if (doc->Content == THUMBNAIL && doc->PageZoom == m_doczoom) return; - - if (this->m_thumbnails->Size > page_num) - { - m_page_update = true; - auto thumb_page = this->m_thumbnails->GetAt(page_num); - thumb_page->Height = (int)(thumb_page->NativeHeight * m_doczoom); - thumb_page->Width = (int)(thumb_page->NativeWidth * m_doczoom); - thumb_page->PageZoom = 1.0; - this->m_docPages->SetAt(page_num, thumb_page); - m_page_update = false; - } -} - -/* Initializes the flipview items with the thumb pages as they become - available */ -void MainPage::SetThumbInit(unsigned int page_num) -{ - /* See what is there now */ - auto doc = this->m_docPages->GetAt(page_num); - if (doc->Content == THUMBNAIL || doc->Content == FULL_RESOLUTION) return; - - if (this->m_thumbnails->Size > page_num) - { - doc->Content = THUMBNAIL; - auto thumb_page = this->m_thumbnails->GetAt(page_num); - thumb_page->Height = (int)(thumb_page->NativeHeight); - thumb_page->Width = (int)(thumb_page->NativeWidth); - doc->Image = thumb_page->Image; - doc->Height = thumb_page->Height; - doc->Width = thumb_page->Width; - doc->PageZoom = 1.0; - } -} - -/* Create white image for us to use as place holder in large document for flip - view filling instead of the thumbnail image */ -void MainPage::CreateBlank(int width, int height) -{ - Array<unsigned char>^ bmp_data = ref new Array<unsigned char>(height * 4 * width); - if (bmp_data == nullptr) - { -#ifdef _DEBUG - NotifyUser("CreateBlank failed", ErrorMessage); -#endif - return; - } - /* Set up the memory stream */ - WriteableBitmap ^bmp = ref new WriteableBitmap(width, height); - InMemoryRandomAccessStream ^ras = ref new InMemoryRandomAccessStream(); - if (bmp == nullptr || ras == nullptr) - { -#ifdef _DEBUG - NotifyUser("CreateBlank failed", ErrorMessage); -#endif - return; - } - DataWriter ^dw = ref new DataWriter(ras->GetOutputStreamAt(0)); - if (dw == nullptr) - { -#ifdef _DEBUG - NotifyUser("CreateBlank failed", ErrorMessage); -#endif - return; - } /* Go ahead and write our header data into the memory stream */ - Prepare_bmp(width, height, dw); - - /* Set the data to all white */ - memset(bmp_data->Data, 255, height * 4 * width); - - /* Write the data */ - dw->WriteBytes(bmp_data); - - DataWriterStoreOperation^ result = dw->StoreAsync(); - /* Block on the Async call */ - while(result->Status != Windows::Foundation::AsyncStatus::Completed) { - } - /* And store in a the image brush */ - bmp->SetSource(ras); - m_BlankBmp = bmp; -} - -void MainPage::SetFlipView() -{ - int height = (int) (this->ActualHeight); - int width = (int) (this->ActualWidth); - - CreateBlank(BLANK_WIDTH, BLANK_HEIGHT); - /* Set the current flip view mode */ - if (height > width) - this->m_curr_flipView = xaml_vert_flipView; - else - this->m_curr_flipView = xaml_horiz_flipView; -} - -/* Clean up everything as we are opening a new document after having another - one open */ -void MainPage::CleanUp() -{ - m_init_done = false; - /* Remove current pages in the flipviews */ - if (m_docPages != nullptr && m_docPages->Size > 0) - m_docPages->Clear(); - if (m_thumbnails != nullptr && m_thumbnails->Size > 0) - m_thumbnails->Clear(); - /* With the ref counting this should not leak */ - if (m_page_link_list != nullptr && m_page_link_list->Size > 0) - m_page_link_list->Clear(); - if (m_text_list->Size > 0) - m_text_list->Clear(); - m_ppage_num_list.clear(); - - if (m_linkset != nullptr && m_linkset->Size > 0) - m_linkset->Clear(); - - if (this->mu_doc != nullptr) - mu_doc->CleanUp(); - - mu_doc = ref new mudocument(); - if (mu_doc == nullptr) - throw ref new FailureException("Document allocation failed!"); - - this->m_curr_flipView = nullptr; - m_currpage = -1; - m_file_open = false; - m_slider_min = 0; - m_slider_max = 0; - m_memory_use = 0; - m_insearch = false; - m_search_active = false; - m_sliderchange = false; - m_flip_from_searchlink = false; - m_num_pages = -1; - m_search_rect_count = 0; - m_ren_status = REN_AVAILABLE; - m_links_on = false; - m_rectlist_page = -1; - m_Progress = 0.0; - m_doczoom = 1.0; - m_print_active = PRINT_INACTIVE; - m_curr_print_count = 1; - - this->xaml_PageSlider->Minimum = m_slider_min; - this->xaml_PageSlider->Maximum = m_slider_max; - this->xaml_PageSlider->IsEnabled = false; -} - -/* Create the thumbnail images */ -void MainPage::RenderThumbs() -{ - spatial_info_t spatial_info = this->InitSpatial(1); - int num_pages = this->m_num_pages; - cancellation_token_source cts; - auto token = cts.get_token(); - m_ThumbCancel = cts; - auto ui = task_continuation_context::use_current(); - - this->m_ren_status = REN_THUMBS; - auto task_thumb = create_task([spatial_info, num_pages, this, ui, token]()-> int - { - spatial_info_t spatial_info_local = spatial_info; - Point ras_size; - Array<unsigned char>^ bmp_data; - int code; - float scale_factor; - - /* The renderings run on a background thread */ - assert(IsBackgroundThread()); - spatial_info_local.scale_factor = SCALE_THUMB; - - for (int k = 0; k < num_pages; k++) - { - if (ComputePageSize(spatial_info_local, k, &ras_size, &scale_factor) == S_ISOK) - { - code = mu_doc->RenderPageBitmapSync(k, (int)ras_size.X, - (int)ras_size.Y, scale_factor, false, true, false, { 0, 0 }, - { ras_size.X, ras_size.Y }, &bmp_data); - - DocumentPage^ doc_page = ref new DocumentPage(); - doc_page->Height = (int)(ras_size.Y / SCALE_THUMB); - doc_page->Width = (int)(ras_size.X / SCALE_THUMB); - doc_page->NativeHeight = (int)(ras_size.Y / SCALE_THUMB); - doc_page->NativeWidth = (int)(ras_size.X / SCALE_THUMB); - doc_page->TextBox = nullptr; - doc_page->LinkBox = nullptr; - doc_page->Content = THUMBNAIL; - - InMemoryRandomAccessStream ^ras = ref new InMemoryRandomAccessStream(); - DataWriter ^dw = ref new DataWriter(ras->GetOutputStreamAt(0)); - Prepare_bmp((int)ras_size.X, (int)ras_size.Y, dw); - dw->WriteBytes(bmp_data); - auto t = create_task(dw->StoreAsync()); - t.wait(); - - /* The update with the WriteableBitmap has to take place in the - UI thread. The fact that you cannot create a WriteableBitmap - object execept in the UI thread is a poor design in WinRT. - We will do the callback but with a low priority */ - this->Dispatcher->RunAsync(CoreDispatcherPriority::Low, - ref new DispatchedHandler([this, ras_size, k, ras, doc_page]() - { - assert(IsMainThread()); - WriteableBitmap ^bmp = ref new WriteableBitmap((int)ras_size.X, (int)ras_size.Y); - bmp->SetSource(ras); - doc_page->Image = bmp; - m_thumbnails->SetAt(k, doc_page); - SetThumbInit((unsigned int) k); - })); - } - } - return num_pages; /* all done with thumbnails! */ - }, token).then([this](task<int> the_task) - { - /* Finish adding them, but not if we were cancelled. */ - this->m_ren_status = REN_AVAILABLE; - bool is_cancelled = false; - try - { - the_task.get(); - } - catch (const task_canceled& e) - { - (void)e; // Unused parameter - is_cancelled = true; - } - }, task_continuation_context::use_current()); -} - -void MainPage::OpenDocumentPrep(StorageFile^ file) -{ - if (this->m_num_pages != -1) - { - m_init_done = false; - - /* Set the index to the start of the document */ - this->xaml_vert_flipView->SelectedIndex = 0; - this->xaml_horiz_flipView->SelectedIndex = 0; - - /* If the thumbnail thread is running then we need to end that first */ - RenderingStatus_t *ren_status = &m_ren_status; - cancellation_token_source *ThumbCancel = &m_ThumbCancel; - - /* Create a task to wait until the renderer is available, then clean up then open */ - auto t = create_task([ren_status, ThumbCancel]()->int - { - if (*ren_status == REN_THUMBS) - ThumbCancel->cancel(); - while (*ren_status != REN_AVAILABLE) { - } - return 0; - }).then([this](task<int> the_task) - { - CleanUp(); - return 0; - }, task_continuation_context::use_current()).then([this, file](task<int> the_task) - { - OpenDocument(file); - }, task_continuation_context::use_current()); - } - else - { - OpenDocument(file); - } -} - -void MainPage::OpenDocument(StorageFile^ file) -{ - this->SetFlipView(); - - /* Open document and when open, push on */ - auto open_task = create_task(mu_doc->OpenFileAsync(file)); - open_task.then([this](int code) -> int - { - assert(IsMainThread()); - if (code != S_ISOK) - { - return code; - } - /* We need to check if password is required */ - if (mu_doc->RequiresPassword()) - { - xaml_PasswordStack->Visibility = Windows::UI::Xaml::Visibility::Visible; - return E_NEEDPASSWORD; - } - else - { - xaml_PasswordStack->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - return S_ISOK; - } - }).then([this](int code)->int - { - assert(IsMainThread()); - if (code == S_ISOK) - InitialRender(); - return code; - }, task_continuation_context::use_current()).then([this](int code) - { - if (code == S_ISOK) - RenderThumbs(); - else - { - if (code != E_NEEDPASSWORD) - { - NotifyUser("Sorry, an issue was encountered in opening file", - StatusMessage); - } - } - }, task_continuation_context::use_current()); -} - -void MainPage::InitialRender() -{ - assert(IsMainThread()); - m_num_pages = mu_doc->GetNumPages(); - - if ((m_currpage) >= m_num_pages) - { - m_currpage = m_num_pages - 1; - } - else if (m_currpage < 0) - { - m_currpage = 0; - } - /* Initialize all the flipvew items with blanks and the thumbnails. */ - for (int k = 0; k < m_num_pages; k++) - { - /* Blank pages */ - DocumentPage^ doc_page = ref new DocumentPage(); - Vector<RectList^>^ temp_link = ref new Vector<RectList^>(); - if (doc_page == nullptr || temp_link == nullptr) - throw ref new FailureException("Document allocation failed!"); - doc_page->Image = m_BlankBmp; - doc_page->Height = BLANK_HEIGHT; - doc_page->Width = BLANK_WIDTH; - doc_page->NativeHeight = BLANK_HEIGHT; - doc_page->NativeWidth = BLANK_WIDTH; - doc_page->Content = DUMMY; - doc_page->TextBox = nullptr; - doc_page->LinkBox = nullptr; - m_docPages->Append(doc_page); - m_thumbnails->Append(doc_page); - /* Create empty lists for our links and specify that they have - not been computed for these pages */ - m_page_link_list->Append(temp_link); - m_linkset->Append(false); - } - - this->xaml_horiz_flipView->ItemsSource = m_docPages; - this->xaml_vert_flipView->ItemsSource = m_docPages; - - /* Do the first few pages, then start the thumbs */ - spatial_info_t spatial_info = InitSpatial(1); - for (int k = 0; k < LOOK_AHEAD + 2; k++) - { - if (m_num_pages > k ) - { - Point ras_size; - float scale_factor; - - if (ComputePageSize(spatial_info, k, &ras_size, &scale_factor) == S_ISOK) - { - auto render_task = create_task(mu_doc->RenderPageAsync(k, (int)ras_size.X, (int)ras_size.Y, true, scale_factor)); - render_task.then([this, k, ras_size](InMemoryRandomAccessStream^ ras) - { - if (ras != nullptr) - UpdatePage(k, ras, ras_size, FULL_RESOLUTION, 1.0); - }, task_continuation_context::use_current()); - } - } - } - /* Update the slider settings, if more than one page */ - if (m_num_pages > 1) - { - this->xaml_PageSlider->Maximum = m_num_pages; - this->xaml_PageSlider->Minimum = 1; - this->xaml_PageSlider->IsEnabled = true; - } - else - { - this->xaml_PageSlider->Maximum = 0; - this->xaml_PageSlider->Minimum = 0; - this->xaml_PageSlider->IsEnabled = false; - } - /* All done with initial pages */ - this->m_init_done = true; -} - -void MainPage::RenderRange(int curr_page) -{ - /* Render +/- the look ahead from where we are if blank page is present */ - spatial_info_t spatial_info = InitSpatial(m_doczoom); - bool curr_page_rendered = true; - int range = LOOK_AHEAD; - - assert(IsMainThread()); - if (m_flip_from_searchlink) - range = 0; - for (int k = curr_page - LOOK_AHEAD; k <= curr_page + LOOK_AHEAD; k++) - { - if (k >= 0 && k < m_num_pages) - { - /* Check if page is already rendered */ - auto doc = this->m_docPages->GetAt(k); - if (doc->Content != FULL_RESOLUTION || - doc->PageZoom != m_doczoom) - { - Point ras_size; - float scale_factor; - if (ComputePageSize(spatial_info, k, &ras_size, &scale_factor) == S_ISOK) - { - double zoom = m_doczoom; - auto render_task = create_task(mu_doc->RenderPageAsync(k, (int)ras_size.X, (int)ras_size.Y, true, scale_factor)); - render_task.then([this, k, ras_size, zoom, curr_page](InMemoryRandomAccessStream^ ras) - { - if (ras != nullptr) - { - Point new_ras_size = ras_size; - - /* This is so that the scroll update will apply the zoom - keeping us in-sync. And making sure that we can't - exceed our limits with keyboard vs touch. I.e. any - resolution changes must go through the scrollviewer. - It makes the upcoming page appear to come in at its - zoom level of 1.0 but it is smoothly scaled to the - current scale resolution. */ - new_ras_size.X = (float) (new_ras_size.X / zoom); - new_ras_size.Y = (float)(new_ras_size.Y / zoom); - UpdatePage(k, ras, new_ras_size, FULL_RESOLUTION, zoom); - } - }, task_continuation_context::use_current()).then([this, k, curr_page]() - { - if (k == curr_page && this->m_links_on) - AddLinkCanvas(); - if (k == curr_page && this->m_text_list->Size > 0 && - m_flip_from_searchlink) - { - AddTextCanvas(); - m_flip_from_searchlink = false; - } - if (k == curr_page) - { - m_curr_flipView->UpdateLayout(); - UpdateZoom(); - } - }, task_continuation_context::use_current()); - - } - } - else - { - /* We did not need to render the curr_page, so add links below if - needed. Otherwise, we need to wait for the task above to - complete before we add the links. */ - if (k == curr_page) - { - curr_page_rendered = false; - UpdateZoom(); - } - } - } - } - m_currpage = curr_page; - if (this->m_links_on && !curr_page_rendered) - AddLinkCanvas(); - if (this->m_text_list->Size > 0 && !curr_page_rendered && m_flip_from_searchlink) - { - AddTextCanvas(); - m_flip_from_searchlink = false; - } -} - -void MainPage::FlipView_SelectionChanged(Object^ sender, SelectionChangedEventArgs^ e) -{ - if (m_init_done && !m_page_update) - { - int pos = this->m_curr_flipView->SelectedIndex; - - if (pos >= 0) - { - if (xaml_PageSlider->IsEnabled) - { - xaml_PageSlider->Value = pos + 1; - } - if (m_sliderchange) - { - m_sliderchange = false; - return; - } - else - { - /* Make sure to clear any text search */ - auto doc_old = this->m_docPages->GetAt(m_currpage); - doc_old->TextBox = nullptr; - } - /* Get the current page */ - int curr_page = this->m_currpage; - this->m_currpage = pos; - this->RenderRange(pos); - this->ReleasePages(curr_page, pos); - } - } -} - -/* Slider via drag */ -void MainPage::Slider_ValueChanged(Platform::Object^ sender, Windows::UI::Xaml::Input::PointerRoutedEventArgs^ e) -{ - Slider_Common(); -} - -/* Slider via keyboard */ -void MainPage::Slider_Key(Platform::Object^ sender, Windows::UI::Xaml::Input::KeyRoutedEventArgs^ e) -{ - Slider_Common(); -} - -void MainPage::Slider_Common() -{ - if (IsNotStandardView() || m_currpage == this->xaml_PageSlider->Value - 1) - return; - - int newValue = (int) this->xaml_PageSlider->Value - 1; /* zero based */ - - if (m_init_done && this->xaml_PageSlider->IsEnabled) - { - this->m_curr_flipView->SelectedIndex = (int) (this->xaml_PageSlider->Value - 1); - } - return; -} - -/* Search Related Code */ -void MainPage::Searcher(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - ShowSearchBox(); - UpdateAppBarButtonViewState(); -} - -void MainPage::ShowSearchBox() -{ - /* Update the app bar so that we can do the search */ - StackPanel^ leftPanel = (StackPanel^) this->TopAppBar->FindName("LeftPanel"); - - if (leftPanel != nullptr && m_insearch) - { - m_insearch = false; - FindBox->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - PrevSearch->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - NextSearch->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - } - else if (leftPanel != nullptr && !m_insearch) - { - /* Search is not going to work in the squashed view */ - if (this->ActualWidth < SEARCH_FIT) - { - NotifyUser("Please enlarge application to use search", StatusMessage); - return; - } - m_insearch = true; - FindBox->Visibility = Windows::UI::Xaml::Visibility::Visible; - PrevSearch->Visibility = Windows::UI::Xaml::Visibility::Visible; - NextSearch->Visibility = Windows::UI::Xaml::Visibility::Visible; - } -} - -void MainPage::ClearTextSearch() -{ - /* Clear out any old search result */ - if (m_text_list->Size > 0) - m_text_list->Clear(); -} - -void MainPage::ShowSearchResults(int page_num, unsigned int box_count) -{ - int old_page = this->m_currpage; - int new_page = page_num; - - ClearTextSearch(); - - /* Compute any scalings */ - Point screenSize; - Point pageSize; - Point scale; - - screenSize.Y = (float) (this->ActualHeight); - screenSize.X = (float) (this->ActualWidth); - screenSize.X *= screenScale; - screenSize.Y *= screenScale; - - try - { - pageSize = mu_doc->GetPageSize(m_currpage); - } - catch (Exception ^except) - { -#ifdef _DEBUG - NotifyUser(except->Message, ErrorMessage); -#endif - return; - } - scale = fitPageToScreen(pageSize, screenSize); - auto doc_page = this->m_docPages->GetAt(old_page); - - /* Construct our list of rectangles */ - for (unsigned int k = 0; k < box_count; k++) - { - RectList^ rect_item = ref new RectList(); - if (rect_item == nullptr) - { - break; - } - auto curr_box = mu_doc->GetTextSearch(k); - - rect_item->Color = m_textcolor; - rect_item->Height = (int) (curr_box->LowerRight.Y - curr_box->UpperLeft.Y); - rect_item->Width = (int) (curr_box->LowerRight.X - curr_box->UpperLeft.X); - rect_item->X = (int) (curr_box->UpperLeft.X * scale.X); - rect_item->Y = (int) (curr_box->UpperLeft.Y * scale.Y); - rect_item->Width = (int)((double)rect_item->Width * scale.X); - rect_item->Height = (int)((double)rect_item->Height * scale.Y); - rect_item->Index = k.ToString(); - m_text_list->Append(rect_item); - } - /* Make sure the current page has its text results cleared */ - doc_page->TextBox = nullptr; - - /* Go ahead and set our doc item to this in the vertical and horizontal view */ - m_searchpage = new_page; - m_flip_from_searchlink = true; - - if (old_page == new_page) - { - FlipView_SelectionChanged(nullptr, nullptr); - } - else - { - this->m_curr_flipView->SelectedIndex = new_page; - } - return; -} - -void MainPage::SearchNext(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - if (IsNotStandardView()) - return; - - StackPanel^ leftPanel = (StackPanel^) this->TopAppBar->FindName("LeftPanel"); - TextBox^ findBox = (TextBox^) leftPanel->FindName("FindBox"); - String^ textToFind = findBox->Text; - - if (this->m_search_active == false && textToFind != nullptr) - SearchInDirection(1, textToFind); -} - -void MainPage::SearchPrev(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - if (IsNotStandardView()) - return; - - StackPanel^ leftPanel = (StackPanel^) this->TopAppBar->FindName("LeftPanel"); - TextBox^ findBox = (TextBox^) leftPanel->FindName("FindBox"); - String^ textToFind = findBox->Text; - - if (this->m_search_active == false && textToFind != nullptr) - SearchInDirection(-1, textToFind); -} - -void MainPage::CancelSearch(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - m_searchcts.cancel(); - xaml_ProgressStack->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - this->m_search_active = false; -} - -void MainPage::AddTextCanvas() -{ - /* Go ahead and set our doc item to this in the vertical and horizontal view */ - auto doc_page = this->m_docPages->GetAt(m_currpage); - assert(doc_page->Content == FULL_RESOLUTION); - if (doc_page->Content == FULL_RESOLUTION) // We should not be doing links for thumbnails - { - doc_page->TextBox = m_text_list; - } - this->m_search_active = false; -} - -void MainPage::SearchProgress(IAsyncOperationWithProgress<int, double>^ operation, double status) -{ - xaml_Progress->Value = status; -} - -void MainPage::SearchInDirection(int dir, String^ textToFind) -{ - cancellation_token_source cts; - auto token = cts.get_token(); - m_searchcts = cts; - int pos = m_currpage; - int start; - - if (m_searchpage == pos) - start = pos + dir; - else - start = pos; - - if (start < 0) - return; - if (start > this->m_num_pages - 1) - return; - this->m_search_active = true; - - ProgressBar^ my_xaml_Progress = (ProgressBar^) (this->FindName("xaml_Progress")); - xaml_ProgressStack->Visibility = Windows::UI::Xaml::Visibility::Visible; - auto temp = mu_doc->SearchDocumentWithProgressAsync(textToFind, dir, start, - m_num_pages); - temp->Progress = ref new AsyncOperationProgressHandler<int, double>(this, &MainPage::SearchProgress); - - auto search_task = create_task(temp, token); - - /* Do the continuation on the ui thread */ - auto con_task = search_task.then([this, textToFind](int page_num) - { - xaml_ProgressStack->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - if (page_num == TEXT_NOT_FOUND) - { - auto str1 = "\"" + textToFind + "\" Was Not Found In The Search"; - NotifyUser(str1, StatusMessage); - this->m_search_active = false; - } - else - { - int box_count = mu_doc->TextSearchCount(); - - if (box_count > 0) - { - this->ShowSearchResults(page_num, (unsigned int) box_count); - } - } - }, task_continuation_context::use_current()); -} - -/* This is here to handle when we rotate or go into the snapview mode */ -void MainPage::GridSizeChanged() -{ - int height = (int) (this->ActualHeight); - int width = (int) (this->ActualWidth); - FlipView^ old_flip = m_curr_flipView; - - if (TopAppBar1->IsOpen) - { - UpdateAppBarButtonViewState(); - } - - if (height > width) - { - m_curr_flipView = this->xaml_vert_flipView; - this->xaml_zoomCanvas->Height = height; - this->xaml_zoomCanvas->Width = width; - this->m_curr_flipView->Height = height; - this->m_curr_flipView->Width = width; - - xaml_vert_flipView->IsEnabled = true; - xaml_vert_flipView->Opacity = 1; - xaml_horiz_flipView->IsEnabled = false; - xaml_horiz_flipView->Opacity = 0; - } - else - { - m_curr_flipView = this->xaml_horiz_flipView; - this->xaml_zoomCanvas->Height = height; - this->xaml_zoomCanvas->Width = width; - this->m_curr_flipView->Height = height; - this->m_curr_flipView->Width = width; - - xaml_horiz_flipView->IsEnabled = true; - xaml_horiz_flipView->Opacity = 1; - xaml_vert_flipView->IsEnabled = false; - xaml_vert_flipView->Opacity = 0; - } - - if (xaml_WebView->Visibility == Windows::UI::Xaml::Visibility::Visible) - xaml_WebView->Height = xaml_OutsideGrid->ActualHeight; - - UpdateThumbSizes(); - - if (m_num_pages > 0 && old_flip != m_curr_flipView && old_flip != nullptr) - { - /* If links are on or off, we need to invalidate */ - ClearLinks(); - InvalidateLinks(); - - /* And force a rerender */ - for (int k = m_currpage - LOOK_AHEAD; k <= m_currpage + LOOK_AHEAD; k++) - { - if (k >= 0 && k < m_num_pages) - { - DocumentPage ^doc = this->m_docPages->GetAt(k); - doc->Content = OLD_RESOLUTION; - } - } - this->m_curr_flipView->SelectedIndex = this->m_currpage; - FlipView_SelectionChanged(nullptr, nullptr); - } -} - -void MainPage::UpdatePreRenderedPageSizes() -{ - if (m_num_pages > 0) - { - for (int k = m_currpage - LOOK_AHEAD; k <= m_currpage + LOOK_AHEAD; k++) - { - if (k >= 0 && k < m_num_pages && k != m_currpage) - { - DocumentPage ^doc = this->m_docPages->GetAt(k); - doc->Content = OLD_RESOLUTION; - int curr_height = doc->Height; - int curr_width = doc->Width; - - double scale_x = (double)curr_height / (double)(this->xaml_zoomCanvas->Height); - double scale_y = (double)curr_width / (double)(this->xaml_zoomCanvas->Width); - - double min_scale = max(scale_x, scale_y); - doc->Height = (int) (curr_height * m_doczoom / min_scale); - doc->Width = (int) (curr_width * m_doczoom / min_scale); - } - } - } -} - -void MainPage::UpdateThumbSizes() -{ - /* Reset the thumbview scaling values */ - if (m_num_pages > 0) - { - int num_items = m_docPages->Size; - for (int i = 0; i < num_items; i++) - { - DocumentPage ^thumb_page = m_docPages->GetAt(i); - if (thumb_page != nullptr && thumb_page->Image != nullptr - && thumb_page->Content == THUMBNAIL) - { - int curr_height = thumb_page->NativeHeight; - int curr_width = thumb_page->NativeWidth; - - double scale_x = (double)curr_height / (double)(this->xaml_zoomCanvas->Height); - double scale_y = (double)curr_width / (double)(this->xaml_zoomCanvas->Width); - - double min_scale = max(scale_x, scale_y); - thumb_page->Height = (int)(curr_height / min_scale); - thumb_page->Width = (int)(curr_width / min_scale); - } - } - } -}; - -/* Link related code */ -void MainPage::Linker(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - m_links_on = !m_links_on; - - if (!m_init_done || IsNotStandardView()) - return; - if (m_links_on) - AddLinkCanvas(); - else - ClearLinks(); -} - -void MainPage::ClearLinks() -{ - /* Make sure surrounding render pages lose their links */ - for (int k = m_currpage - LOOK_AHEAD; k <= m_currpage + LOOK_AHEAD; k++) - { - if (k >= 0 && k < m_num_pages) - { - auto doc_page = this->m_docPages->GetAt(k); - if (doc_page->Content == FULL_RESOLUTION) - { - doc_page->LinkBox = nullptr; - } - } - } -} - -void MainPage::InvalidateLinks() -{ - for (int k = 0; k < m_num_pages; k++) - m_linkset->SetAt(k, false); -} - -/* Add in the link rects. If we have not already computed them then do that now */ -void MainPage::AddLinkCanvas() -{ - /* See if the link object for this page has already been computed */ - int link_page = m_linkset->GetAt(m_currpage); - auto doc_page = this->m_docPages->GetAt(m_currpage); - - if (!link_page) - { - m_linkset->SetAt(m_currpage, true); - unsigned int num_links = mu_doc->ComputeLinks(m_currpage); - if (num_links == 0) return; - - Point screenSize; - Point pageSize; - Point scale; - - screenSize.Y = (float) (this->ActualHeight); - screenSize.X = (float)(this->ActualWidth); - screenSize.X *= screenScale; - screenSize.Y *= screenScale; - - try - { - pageSize = mu_doc->GetPageSize(m_currpage); - } - catch (Exception ^except) - { -#ifdef _DEBUG - NotifyUser(except->Message, ErrorMessage); -#endif - return; - } - scale = fitPageToScreen(pageSize, screenSize); - - /* Create a new RectList collection */ - auto link_list = ref new Platform::Collections::Vector<RectList^>(); - if (link_list == nullptr) - return; - - /* Now add the rects */ - for (unsigned int k = 0; k < num_links; k++) - { - auto curr_link = mu_doc->GetLink(k); - if (curr_link->Type != NOT_SET) - { - RectList^ rect_item = ref new RectList(); - if (rect_item == nullptr) - break; - rect_item->Color = m_linkcolor; - rect_item->Height = (int) (curr_link->LowerRight.Y - curr_link->UpperLeft.Y); - rect_item->Width = (int) (curr_link->LowerRight.X - curr_link->UpperLeft.X); - rect_item->X = (int) (curr_link->UpperLeft.X * scale.X); - rect_item->Y = (int) (curr_link->UpperLeft.Y * scale.Y); - rect_item->Width = (int)((double)rect_item->Width * scale.X); - rect_item->Height = (int)((double)rect_item->Height * scale.Y); - rect_item->Type = curr_link->Type; - rect_item->Urilink = curr_link->Uri; - rect_item->PageNum = curr_link->PageNum; - rect_item->Index = k.ToString(); - link_list->Append(rect_item); - } - } - /* Now set it in our list of links */ - m_page_link_list->SetAt(m_currpage, link_list); - } - /* Go ahead and set our doc item to this in the vertical and horizontal view */ - if (doc_page->LinkBox == nullptr) - { - if (doc_page->Content == FULL_RESOLUTION) // We should not be doing links for thumbnails - { - doc_page->LinkBox = m_page_link_list->GetAt(m_currpage); - } - } -} - -/* A link was tapped */ -void MainPage::LinkTapped(Platform::Object^ sender, Windows::UI::Xaml::Input::TappedRoutedEventArgs^ e) -{ - Rectangle^ rect = safe_cast<Rectangle^>(e->OriginalSource); - String^ str_index = safe_cast<String^>(rect->Tag); - int index = (int) (_wtof(str_index->Data())); - - if (index >= 0 && index < m_num_pages) - { - auto link_list = m_page_link_list->GetAt(m_currpage); - auto link = link_list->GetAt(index); - - if (link->Type == LINK_GOTO) - { - this->m_curr_flipView->SelectedIndex = link->PageNum; - } - else if (link->Type == LINK_URI) - { - // Set the option to show a warning - auto launchOptions = ref new Windows::System::LauncherOptions(); - launchOptions->TreatAsUntrusted = true; - - // Launch the URI with a warning prompt - concurrency::task<bool> launchUriOperation(Windows::System::Launcher::LaunchUriAsync(link->Urilink, launchOptions)); - launchUriOperation.then([](bool success) - { - if (success) - { - // URI launched - } - else - { - // URI launch failed - } - }); - } - } -} - -/* Bring up the contents */ -void MainPage::ContentDisplay(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - if (this->m_num_pages < 0) - return; - - if (IsNotStandardView() && !this->xaml_ListView->IsEnabled) - return; - - if (this->xaml_ListView->IsEnabled) - { - this->xaml_ListView->Opacity = 0.0; - this->xaml_ListView->IsEnabled = false; - this->m_curr_flipView->Opacity = 1.0; - this->m_curr_flipView->IsEnabled = true; - this->xaml_PageSlider->IsEnabled = true; - } - else - { - if (xaml_ListView->Items->Size == 0) - { - unsigned int size_content = mu_doc->ComputeContents(); - /* Bring up the content now */ - for (unsigned int k = 0; k < size_content; k++) - { - ContentItem^ item = mu_doc->GetContent(k); - this->xaml_ListView->Items->Append(item); - } - if (size_content > 0) - { - this->xaml_ListView->Opacity = 1.0; - this->xaml_ListView->IsEnabled = true; - this->m_curr_flipView->Opacity = 0.0; - this->m_curr_flipView->IsEnabled = false; - this->xaml_PageSlider->IsEnabled = false; - } - } - else - { - this->xaml_ListView->Opacity = 1.0; - this->xaml_ListView->IsEnabled = true; - this->m_curr_flipView->Opacity = 0.0; - this->m_curr_flipView->IsEnabled = false; - this->xaml_PageSlider->IsEnabled = false; - } - } -} - -void MainPage::ContentSelected(Platform::Object^ sender, Windows::UI::Xaml::Controls::ItemClickEventArgs^ e) -{ - ContentItem^ b = safe_cast<ContentItem^>(e->ClickedItem); - int newpage = b->Page; - - if (newpage > -1 && newpage < this->m_num_pages) - { - this->xaml_ListView->Opacity = 0.0; - this->xaml_ListView->IsEnabled = false; - this->m_curr_flipView->Opacity = 1.0; - this->m_curr_flipView->IsEnabled = true; - this->xaml_PageSlider->IsEnabled = true; - - int old_page = this->m_currpage; - this->m_curr_flipView->SelectedIndex = newpage; - this->m_currpage = newpage; - } -} - -void MainPage::Reflower(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - if (this->m_num_pages < 0) return; - - if (xaml_WebView->Visibility == Windows::UI::Xaml::Visibility::Visible) - { - /* Go back to flip view */ - xaml_WebView->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - this->xaml_MainGrid->Opacity = 1.0; - this->m_curr_flipView->IsEnabled = true; - this->xaml_PageSlider->IsEnabled = true; - } - else if (this->m_curr_flipView->IsEnabled) - { - String^ html_string = mu_doc->ComputeHTML(this->m_currpage); - xaml_WebView->Visibility = Windows::UI::Xaml::Visibility::Visible; - this->xaml_MainGrid->Opacity = 0.0; - this->m_curr_flipView->IsEnabled = false; - this->xaml_PageSlider->IsEnabled = false; - this->xaml_WebView->NavigateToString(html_string); - this->xaml_WebView->Height = this->ActualHeight; - } -} - -/* Need to handle resizing of app bar to make sure everything fits */ -void MainPage::topAppBar_Loaded(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - /* Remove search box in snapped view as we don't have the room for it */ - int temp = (int) (this->ActualWidth); - if (this->ActualWidth < SEARCH_FIT && m_insearch) - ShowSearchBox(); - UpdateAppBarButtonViewState(); - /* This is needed to make sure we get the proper state during start-up. The - object has to be visible to set the state. So that is the way we start */ - if (!m_insearch && FindBox->Visibility == Windows::UI::Xaml::Visibility::Visible) - { - FindBox->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - PrevSearch->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - NextSearch->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - } -} - -String^ MainPage::GetVisualState() -{ - String^ visualstate = "FullScreenLandscape"; - - int width = (int) (this->ActualWidth); - int height = (int) (this->ActualHeight); - - if (width < VS_SMALL) - { - visualstate = "Snapped"; - } - else if (width < VS_LARGE) - { - if (width < height) - { - visualstate = "FullScreenPortrait"; - } - else - { - visualstate = "Snapped"; - } - } - return visualstate; -} - -void MainPage::UpdateAppBarButtonViewState() -{ - String ^viewState = GetVisualState(); - VisualStateManager::GoToState(Search, viewState, true); - VisualStateManager::GoToState(Contents, viewState, true); - VisualStateManager::GoToState(Links, viewState, true); - VisualStateManager::GoToState(Reflow, viewState, true); - VisualStateManager::GoToState(ZoomIn, viewState, true); - VisualStateManager::GoToState(ZoomOut, viewState, true); - VisualStateManager::GoToState(PrevSearch, viewState, true); - VisualStateManager::GoToState(NextSearch, viewState, true); -} - -/* Scroll viewer scale changes. If first time to this page, then we essentially - have our scroll setting set at 1.0. */ -void MainPage::ScrollChanged(Platform::Object^ sender, - Windows::UI::Xaml::Controls::ScrollViewerViewChangedEventArgs^ e) -{ - ScrollViewer^ scrollviewer = safe_cast<ScrollViewer^> (sender); - auto doc_page = this->m_docPages->GetAt(m_currpage); - double new_scroll_zoom = scrollviewer->ZoomFactor; - - /* Check if we are already at this resolution with this page */ - if (new_scroll_zoom == doc_page->PageZoom) - return; - - if (!e->IsIntermediate) - { - int page = m_currpage; - - m_doczoom = new_scroll_zoom; - if (m_doczoom > ZOOM_MAX) - { - m_doczoom = ZOOM_MAX; - } - if (m_doczoom < ZOOM_MIN) - { - m_doczoom = ZOOM_MIN; - } - /* Render at new resolution. */ - spatial_info_t spatial_info = InitSpatial(m_doczoom); - Point ras_size; - float scale_factor; - if (ComputePageSize(spatial_info, page, &ras_size, &scale_factor) == S_ISOK) - { - doc_page->PageZoom = m_doczoom; - auto render_task = create_task(mu_doc->RenderPageAsync(page, (int)ras_size.X, (int)ras_size.Y, true, scale_factor)); - render_task.then([this, page, ras_size, scrollviewer](InMemoryRandomAccessStream^ ras) - { - if (ras != nullptr) - ReplaceImage(page, ras, ras_size, m_doczoom); - }, task_continuation_context::use_current()); - } - } -} - -/* Needed to find scrollviewer child from template of flipview item */ -Windows::UI::Xaml::FrameworkElement^ FindVisualChildByName(DependencyObject^ obj, String^ name) -{ - FrameworkElement^ ret; - if (obj == nullptr) return nullptr; - - int numChildren = VisualTreeHelper::GetChildrenCount(obj); - - for (int i = 0; i < numChildren; i++) - { - auto objChild = VisualTreeHelper::GetChild(obj, i); - auto child = safe_cast<FrameworkElement^>(objChild); - if (child != nullptr && child->Name == name) - { - return child; - } - ret = FindVisualChildByName(objChild, name); - if (ret != nullptr) - break; - } - return ret; -} - -void MainPage::ZoomInPress(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - if (!m_init_done || IsNotStandardView()) return; - NonTouchZoom(ZOOM_IN); -} - -void MainPage::ZoomOutPress(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - if (!m_init_done || IsNotStandardView()) return; - NonTouchZoom(ZOOM_OUT); -} - -void MainPage::NonTouchZoom(int zoom) -{ - auto doc_page = this->m_docPages->GetAt(m_currpage); - double curr_zoom = doc_page->PageZoom; - - ScrollViewer^ scrollviewer; - FlipViewItem^ item = safe_cast<FlipViewItem^> - (m_curr_flipView->ContainerFromIndex(m_currpage)); - auto item2 = m_curr_flipView->ContainerFromIndex(m_currpage); - - /* We don't know which one so check for both */ - ScrollViewer^ t1 = - safe_cast<ScrollViewer^> (FindVisualChildByName(item2, "xaml_ScrollView_v")); - ScrollViewer^ t2 = - safe_cast<ScrollViewer^> (FindVisualChildByName(item2, "xaml_ScrollView_h")); - - if (t1 != nullptr) - scrollviewer = t1; - else - scrollviewer = t2; - - if (scrollviewer == nullptr) - return; - - if (zoom == ZOOM_IN) - { - curr_zoom = curr_zoom + KEYBOARD_ZOOM_STEP; - if (curr_zoom > ZOOM_MAX) curr_zoom = ZOOM_MAX; - } - else if (zoom == ZOOM_OUT) - { - curr_zoom = curr_zoom - KEYBOARD_ZOOM_STEP; - if (curr_zoom < ZOOM_MIN) curr_zoom = ZOOM_MIN; - } else - return; - - /* It all needs to be driven by the scroll viewer otherwise we - end up out of sync */ - Platform::Object^ obj_zoom = (float)curr_zoom; - Platform::IBox<float>^ box_zoom; - box_zoom = safe_cast<Platform::IBox<float>^>(obj_zoom); - - scrollviewer->ChangeView(nullptr, nullptr, box_zoom, false); -} - -/* Adjust the page scrollviewer to the current zoom level */ -void MainPage::UpdateZoom() -{ - ScrollViewer^ scrollviewer; - FlipViewItem^ item = safe_cast<FlipViewItem^> - (m_curr_flipView->ContainerFromIndex(m_currpage)); - auto item2 = m_curr_flipView->ContainerFromIndex(m_currpage); - - /* We don't know which one so check for both */ - ScrollViewer^ t1 = - safe_cast<ScrollViewer^> (FindVisualChildByName(item2, "xaml_ScrollView_v")); - ScrollViewer^ t2 = - safe_cast<ScrollViewer^> (FindVisualChildByName(item2, "xaml_ScrollView_h")); - - if (t1 != nullptr) - scrollviewer = t1; - else - scrollviewer = t2; - - if (scrollviewer == nullptr) - return; - - float curr_zoom = scrollviewer->ZoomFactor; - Platform::Object^ obj_zoom = (float)m_doczoom; - Platform::IBox<float>^ box_zoom; - box_zoom = safe_cast<Platform::IBox<float>^>(obj_zoom); - scrollviewer->ChangeView(nullptr, nullptr, box_zoom, false); -} - -/* Zoom in and out for keyboard only case. */ -void MainPage::OnKeyDown(KeyRoutedEventArgs^ e) -{ - if (!m_init_done || IsNotStandardView()) return; - - long val = (long) (e->Key); - - if (val == KEY_PLUS) - NonTouchZoom(ZOOM_IN); - else if (val == KEY_MINUS) - NonTouchZoom(ZOOM_OUT); - else - return; -} - -void MainPage::PasswordOK(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - /* If password checks out then go ahead and start rendering */ - if (mu_doc->ApplyPassword(xaml_password->Password)) - { - xaml_password->Password = nullptr; - xaml_PasswordStack->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - InitialRender(); - RenderThumbs(); - } - else - NotifyUser("Incorrect Password", StatusMessage); -} - -/* So that we know if we are in a standard view case and not in reflow, or - * content type */ -bool MainPage::IsNotStandardView() -{ - return (this->xaml_ListView->Opacity == 1.0 || - xaml_WebView->Visibility == Windows::UI::Xaml::Visibility::Visible); -} - -/* The following code is for print support. */ -void MainPage::RegisterForPrinting() -{ - m_print_manager = Windows::Graphics::Printing::PrintManager::GetForCurrentView(); - m_print_manager->PrintTaskRequested += - ref new TypedEventHandler<PrintManager^, PrintTaskRequestedEventArgs^>(this, &MainPage::SetPrintTask); -} - -void MainPage::SetPrintTask(PrintManager^ sender, PrintTaskRequestedEventArgs^ args) -{ - PrintTaskSourceRequestedHandler^ source_handler = - ref new PrintTaskSourceRequestedHandler([this](PrintTaskSourceRequestedArgs^ args)-> void{ - Microsoft::WRL::ComPtr<PrintPages> document_source; - ThrowIfFailed(Microsoft::WRL::MakeAndInitialize<PrintPages>(&document_source, reinterpret_cast<IUnknown*>(this))); - IPrintDocumentSource^ objSource(reinterpret_cast<IPrintDocumentSource^>(document_source.Get())); - args->SetSource(objSource); - }); - - PrintTask^ print_task = - args->Request->CreatePrintTask(L"MuPDF WinRT Print", source_handler); - - /* Call backs so that we know when we are all done with the printing */ - print_task->Progressing += - ref new TypedEventHandler<PrintTask^, PrintTaskProgressingEventArgs^>(this, &MainPage::PrintProgress); - print_task->Completed += - ref new TypedEventHandler<PrintTask^, PrintTaskCompletedEventArgs^>(this, &MainPage::PrintCompleted); - m_print_active = PRINT_ACTIVE; - m_curr_print_count = 0; - - PrintTaskOptionDetails^ printDetailedOptions = - PrintTaskOptionDetails::GetFromPrintTaskOptions(print_task->Options); - - // Some standard printer options - printDetailedOptions->DisplayedOptions->Clear(); - printDetailedOptions->DisplayedOptions->Append(Windows::Graphics::Printing::StandardPrintTaskOptions::MediaSize); - printDetailedOptions->DisplayedOptions->Append(Windows::Graphics::Printing::StandardPrintTaskOptions::Copies); - - // Our custom options - PrintCustomItemListOptionDetails^ resolution = - printDetailedOptions->CreateItemListOption("resolution", "Render Resolution"); - resolution->AddItem("sres96", "96dpi"); - resolution->AddItem("sres150", "150 dpi"); - resolution->AddItem("sres300", "300 dpi"); - resolution->AddItem("sres600", "600 dpi"); - resolution->TrySetValue("sres600"); - m_printresolution = 600; - printDetailedOptions->DisplayedOptions->Append("resolution"); - - PrintCustomItemListOptionDetails^ location = printDetailedOptions->CreateItemListOption("location", "Location"); - location->AddItem("sCenter", "Center"); - location->AddItem("sTopleft", "Top Left"); - // Add the custom option to the option list. - printDetailedOptions->DisplayedOptions->Append("location"); - location->TrySetValue("sCenter"); - m_centerprint = true; - print_task->Options->MediaSize = PrintMediaSize::NorthAmericaLetter; - - PrintCustomItemListOptionDetails^ pageFormat = printDetailedOptions->CreateItemListOption(L"PageRange", L"Page Range"); - pageFormat->AddItem(L"PrintAll", L"Print all"); - pageFormat->AddItem(L"PrintRange", L"Print Range"); - printDetailedOptions->DisplayedOptions->Append(L"PageRange"); - PrintCustomTextOptionDetails^ pageRangeEdit = printDetailedOptions->CreateTextOption(L"PageRangeEdit", L"Range"); - - printDetailedOptions->OptionChanged += - ref new TypedEventHandler<PrintTaskOptionDetails^, PrintTaskOptionChangedEventArgs^>(this, &MainPage::PrintOptionsChanged); -} - -int MainPage::GetPrintPageCount() -{ - if (m_ppage_num_list.size() > 0) - return (int) m_ppage_num_list.size(); - else - return m_num_pages; -} - -void MainPage::PrintOptionsChanged(PrintTaskOptionDetails^ sender, PrintTaskOptionChangedEventArgs^ args) -{ - bool force_reset = false; - - if (args->OptionId == nullptr) - return; - - String^ optionId = safe_cast<String^>(args->OptionId); - - if (optionId == "resolution") - { - IPrintOptionDetails^ resolution = sender->Options->Lookup(optionId); - String^ resolutionValue = safe_cast<String^>(resolution->Value); - - if (resolutionValue == "sres96") - { - m_printresolution = 96; - } - else if (resolutionValue == "sres150") - { - m_printresolution = 150; - } - else if (resolutionValue == "sres300") - { - m_printresolution = 300; - } - else if(resolutionValue == "sres600") - { - m_printresolution = 600; - } - } - - /* Need to update preview with a change of this one */ - if (optionId == "location") - { - IPrintOptionDetails^ scaling = sender->Options->Lookup(optionId); - String^ scaleValue = safe_cast<String^>(scaling->Value); - - if (scaleValue == "sCenter") - { - m_centerprint = true; - } - if (scaleValue == "sTopleft") - { - m_centerprint = false; - } - force_reset = true; - } - - if (optionId == L"PageRange") - { - IPrintOptionDetails^ pagerange = sender->Options->Lookup(optionId); - String^ pageRangeValue = pagerange->Value->ToString(); - - if(pageRangeValue == L"PrintRange") - { - sender->DisplayedOptions->Append(L"PageRangeEdit"); - m_pageRangeEditVisible = true; - } - else - { - RemovePageRangeEdit(sender); - } - RefreshPreview(); - } - - if (optionId == L"PageRangeEdit") - { - IPrintOptionDetails^ pagerange = sender->Options->Lookup(optionId); - - std::wregex rangePattern(L"^\\s*\\d+\\s*(\\-\\s*\\d+\\s*)?(\\,\\s*\\d+\\s*(\\-\\s*\\d+\\s*)?)*$"); - std::wstring pageRangeValue(pagerange->Value->ToString()->Data()); - - if(!std::regex_match(pageRangeValue.begin(), pageRangeValue.end(), rangePattern)) - { - pagerange->ErrorText = L"Invalid Page Range (eg: 1-3, 5)"; - } - else - { - pagerange->ErrorText = L""; - try - { - GetPagesInRange(pagerange->Value->ToString()); - } - catch(PageRangeException* rangeException) - { - pagerange->ErrorText = ref new String(rangeException->get_DisplayMessage().data()); - delete rangeException; - } - force_reset = true; - } - } - if (force_reset) - { - RefreshPreview(); - } -} - -void MainPage::SplitString(String^ string, wchar_t delimiter, std::vector<std::wstring>& words) - { - std::wistringstream iss(string->Data()); - - std::wstring part; - while(std::getline(iss, part, delimiter)) - { - words.push_back(part); - }; -} - -void MainPage::GetPagesInRange(String^ pagerange) -{ - std::vector<std::wstring> vector_range; - SplitString(pagerange, ',', vector_range); - - m_ppage_num_list.clear(); - for(std::vector<std::wstring>::iterator it = vector_range.begin(); it != vector_range.end(); ++ it) - { - int intervalPos = static_cast<int>((*it).find('-')); - if( intervalPos != -1) - { - int start = _wtoi((*it).substr(0, intervalPos).data()); - int end = _wtoi((*it).substr(intervalPos + 1, (*it).length() - intervalPos - 1).data()); - - if ((start < 1) || (end > static_cast<int>(m_num_pages)) || (start >= end)) - { - std::wstring message(L"Invalid page(s) in range "); - - message.append(std::to_wstring(start)); - message.append(L" - "); - message.append(std::to_wstring(end)); - - throw new PageRangeException(message); - } - - for(int intervalPage=start; intervalPage <= end; ++intervalPage) - { - m_ppage_num_list.push_back(intervalPage); - } - } - else - { - int pageNr = _wtoi((*it).data()); - std::wstring message(L"Invalid page "); - - if (pageNr < 1) - { - message.append(std::to_wstring(pageNr)); - throw new PageRangeException(message); - } - if (pageNr > static_cast<int>(m_num_pages)) - { - message.append(std::to_wstring(pageNr)); - throw new PageRangeException(message); - } - m_ppage_num_list.push_back(pageNr); - } - } - std::sort(m_ppage_num_list.begin(), m_ppage_num_list.end(), std::less<int>()); - std::unique(m_ppage_num_list.begin(), m_ppage_num_list.end()); -} - -void MainPage::RemovePageRangeEdit(PrintTaskOptionDetails^ printTaskOptionDetails) -{ - if (m_pageRangeEditVisible) - { - unsigned int index; - if(printTaskOptionDetails->DisplayedOptions->IndexOf(ref new String(L"PageRangeEdit"), &index)) - { - printTaskOptionDetails->DisplayedOptions->RemoveAt(index); - } - m_pageRangeEditVisible = false; - } -} - -void MainPage::CreatePrintControl(_In_ IPrintDocumentPackageTarget* docPackageTarget, - _In_ D2D1_PRINT_CONTROL_PROPERTIES* printControlProperties) -{ - m_d2d_printcontrol = nullptr; - ThrowIfFailed(m_d2d_device->CreatePrintControl(m_wic_factory.Get(), docPackageTarget, - printControlProperties, &m_d2d_printcontrol)); -} - -void MainPage::DrawPreviewSurface(float width, float height, float scale_in, - D2D1_RECT_F contentBox, uint32 page_num, - IPrintPreviewDxgiPackageTarget* previewTarget) -{ - int dpi = 96; - int index_page_num = page_num - 1; - int ren_page_num = index_page_num; - - if (m_ppage_num_list.size() > 0) - ren_page_num = m_ppage_num_list[page_num - 1] - 1; - - /* This goes on in a background thread. Hence is non-blocking for UI */ - assert(IsBackgroundThread()); - - /* Set up all the DirectX stuff */ - CD3D11_TEXTURE2D_DESC textureDesc(DXGI_FORMAT_B8G8R8A8_UNORM, - static_cast<uint32>(ceil(width * dpi / 96)), - static_cast<uint32>(ceil(height * dpi / 96)), - 1, 1, D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE); - ComPtr<ID3D11Texture2D> texture; - ThrowIfFailed(m_d3d_device->CreateTexture2D(&textureDesc, nullptr, &texture)); - ComPtr<IDXGISurface> dxgi_surface; - ThrowIfFailed(texture.As<IDXGISurface>(&dxgi_surface)); - - // Create a new D2D device context for rendering the preview surface. D2D - // device contexts are stateful, and hence a unique device context must be - // used on each thread. - ComPtr<ID2D1DeviceContext> d2d_context; - ThrowIfFailed(m_d2d_device->CreateDeviceContext(D2D1_DEVICE_CONTEXT_OPTIONS_NONE, - &d2d_context)); - // Update DPI for preview surface as well. - d2d_context->SetDpi(96, 96); - - D2D1_BITMAP_PROPERTIES1 bitmap_properties = - D2D1::BitmapProperties1(D2D1_BITMAP_OPTIONS_TARGET | D2D1_BITMAP_OPTIONS_CANNOT_DRAW, - D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_IGNORE)); - - // Create surface bitmap on which page content is drawn. - ComPtr<ID2D1Bitmap1> d2d_surfacebitmap; - ThrowIfFailed(d2d_context->CreateBitmapFromDxgiSurface(dxgi_surface.Get(), - &bitmap_properties, &d2d_surfacebitmap)); - d2d_context->SetTarget(d2d_surfacebitmap.Get()); - - /* Figure out all the sizing */ - spatial_info_t spatial_info; - spatial_info.scale_factor = 1.0; - spatial_info.size.X = width; - spatial_info.size.Y = height; - Point ras_size; - float scale_factor; - - if (ComputePageSize(spatial_info, ren_page_num, &ras_size, &scale_factor) != S_ISOK) - return; - - ras_size.X = ceil(ras_size.X); - ras_size.Y = ceil(ras_size.Y); - - Array<unsigned char>^ bmp_data; - int code = mu_doc->RenderPageBitmapSync(ren_page_num, (int) ras_size.X, - (int)ras_size.Y, scale_factor, true, false, false, { 0, 0 }, - { ras_size.X, ras_size.Y }, &bmp_data); - if (bmp_data == nullptr) - return; - D2D1_SIZE_U bit_map_rect; - bit_map_rect.width = (UINT32) (ras_size.X); - bit_map_rect.height = (UINT32) (ras_size.Y); - - D2D1_BITMAP_PROPERTIES1 bitmap_prop = - D2D1::BitmapProperties1(D2D1_BITMAP_OPTIONS_NONE, - D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_IGNORE)); - - ID2D1Bitmap1 *bit_map; - ThrowIfFailed(d2d_context->CreateBitmap(bit_map_rect, &(bmp_data[0]), - (UINT32) (ras_size.X * 4), - &bitmap_prop, &bit_map)); - D2D1_SIZE_F size = bit_map->GetSize(); - - /* Handle centering */ - float y_offset = 0; - float x_offset = 0; - if (m_centerprint) - { - y_offset = (float) ((height - size.height) / 2.0); - x_offset = (float) ((width - size.width) / 2.0); - } - - d2d_context->BeginDraw(); - d2d_context->DrawBitmap(bit_map, D2D1::RectF(x_offset, y_offset, - size.width + x_offset, size.height + y_offset)); - ThrowIfFailed(d2d_context->EndDraw()); - ThrowIfFailed(previewTarget->DrawPage(page_num, dxgi_surface.Get(), - (float) dpi, (float) dpi)); -} - -HRESULT MainPage::ClosePrintControl() -{ - return (m_d2d_printcontrol == nullptr) ? S_OK : m_d2d_printcontrol->Close(); -} - -/* To support high resolution printing, we tile renderings at the maxbitmap size - allowed with DirectX for this particular device. e.g the low end surface - will have a smaller maxbitmap size compared to a laptop or desktop. */ -void MainPage::PrintPage(uint32 page_num, D2D1_RECT_F image_area, D2D1_SIZE_F page_area, - float device_dpi, IStream* print_ticket) -{ - int dpi = m_printresolution; - int index_page_num = page_num - 1; - int ren_page_num = index_page_num; - bool tile = false; - Point tile_count; - D2D1_SIZE_U bit_map_rect; - Array<unsigned char>^ bmp_data; - - if (index_page_num == 0) - { - this->Dispatcher->RunAsync(CoreDispatcherPriority::Low, - ref new DispatchedHandler([this]() - { - xaml_PrintStack->Visibility = Windows::UI::Xaml::Visibility::Visible; - })); - } - - /* Windoze seems to hand me a bogus dpi. Need to follow up on this */ - device_dpi = 96; - - if (m_ppage_num_list.size() > 0) - ren_page_num = m_ppage_num_list[page_num - 1] - 1; - - /* This goes on in a background thread. Hence is non-blocking for UI */ - assert(IsBackgroundThread()); - - /* Print command list set up */ - ComPtr<ID2D1DeviceContext> d2d_context; - ThrowIfFailed(m_d2d_device->CreateDeviceContext(D2D1_DEVICE_CONTEXT_OPTIONS_NONE, - &d2d_context)); - - /* This should let us work in pixel dimensions but after much testing - it clearly has some issues. May investigate this further later. */ - //d2d_context->SetUnitMode(D2D1_UNIT_MODE_PIXELS); - ComPtr<ID2D1CommandList> clist; - ThrowIfFailed(d2d_context->CreateCommandList(&clist)); - d2d_context->SetTarget(clist.Get()); - - /* Width and height here are at 96 dpi */ - float width = image_area.right - image_area.left; - float height = image_area.bottom - image_area.top; - - /* MuPDF native resolution is 72dpi */ - spatial_info_t spatial_info; - spatial_info.scale_factor = 1.0; - spatial_info.size.X = (width / device_dpi) * (m_printresolution); - spatial_info.size.Y = (height /device_dpi) * (m_printresolution); - Point ras_size; - float scale_factor; - - if (ComputePageSize(spatial_info, ren_page_num, &ras_size, &scale_factor) != S_ISOK) - return; - ras_size.X = ceil(ras_size.X); - ras_size.Y = ceil(ras_size.Y); - - /* Determine if we need to do any tiling */ - int tile_size = d2d_context->GetMaximumBitmapSize(); - tile_count.Y = 1; - if (ras_size.X > tile_size) - { - tile = true; - tile_count.X = (float) ceil((float) ras_size.X / (float) tile_size); - bit_map_rect.width = (UINT32) (tile_size); - } - else - { - tile_count.X = 1; - bit_map_rect.width = (UINT32) (ras_size.X); - } - if (ras_size.Y > tile_size) - { - tile = true; - tile_count.Y = (float) ceil((float) ras_size.Y / (float) tile_size); - bit_map_rect.height = (UINT32) (tile_size); - } - else - { - tile_count.Y = 1; - bit_map_rect.height = (UINT32) (ras_size.Y); - } - - /* Adjust for centering in media page */ - float y_offset = 0; - float x_offset = 0; - if (m_centerprint) - { - y_offset = (float)round(((page_area.height - (ras_size.Y) * device_dpi / m_printresolution) / 2.0)); - x_offset = (float)round(((page_area.width - (ras_size.X) * device_dpi / m_printresolution) / 2.0)); - } - - D2D1_BITMAP_PROPERTIES1 bitmap_prop = - D2D1::BitmapProperties1(D2D1_BITMAP_OPTIONS_NONE, - D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_IGNORE), - (float) m_printresolution, (float) m_printresolution); - - ID2D1Bitmap1 *bit_map = NULL; - Point top_left, top_left_dip; - Point bottom_right, bottom_right_dip; - - /* Initialize X location */ - top_left.X = 0; - bottom_right.X = (float) bit_map_rect.width; - - d2d_context->BeginDraw(); - /* Useful for debugging */ - //d2d_context->Clear(D2D1::ColorF(D2D1::ColorF::Coral)); - int total_tile = (int) (tile_count.X * tile_count.Y); - - for (int x = 0; x < tile_count.X; x++) - { - /* Reset Y location */ - top_left.Y = 0; - bottom_right.Y = (float) bit_map_rect.height; - - for (int y = 0; y < tile_count.Y; y++) - { - int code = mu_doc->RenderPageBitmapSync(ren_page_num, (int)bit_map_rect.width, - (int)bit_map_rect.height, scale_factor, true, false, tile, top_left, - bottom_right, &bmp_data); - if (bmp_data == nullptr || code != 0) - break; - - ThrowIfFailed(d2d_context->CreateBitmap(bit_map_rect, &(bmp_data[0]), - (UINT32)(bit_map_rect.width * 4), &bitmap_prop, &bit_map)); - - // This is where D2D1_UNIT_MODE_PIXELS fails to work. Essentially, - // DirectX ends up clipping based upon the origin still in DIPS - // instead of actual pixel positions. - top_left_dip.X = (float)((double) top_left.X * (double)device_dpi / (double)m_printresolution + x_offset - 0.5); - top_left_dip.Y = (float)((double)top_left.Y * (double)device_dpi / (double)m_printresolution + y_offset - 0.5); - bottom_right_dip.X = (float)((double)bottom_right.X * (double)device_dpi / (double)m_printresolution + x_offset + 0.5); - bottom_right_dip.Y = (float)((double)bottom_right.Y * (double)device_dpi / (double)m_printresolution + y_offset + 0.5); - d2d_context->DrawBitmap(bit_map, D2D1::RectF(top_left_dip.X, top_left_dip.Y, - bottom_right_dip.X, bottom_right_dip.Y)); - bit_map->Release(); - - /* Increment Y location */ - top_left.Y += (float) bit_map_rect.height; - bottom_right.Y += (float) bit_map_rect.height; - PrintProgressTile(total_tile); - } - /* Increment X location */ - top_left.X += (float) bit_map_rect.width; - bottom_right.X += (float) bit_map_rect.width; - } - ThrowIfFailed(d2d_context->EndDraw()); - ThrowIfFailed(clist->Close()); - ThrowIfFailed(m_d2d_printcontrol->AddPage(clist.Get(), page_area, print_ticket)); -} - -void MainPage::RefreshPreview() -{ - PrintPages *p_struct = (PrintPages*) m_print_struct; - p_struct->ResetPreview(); -} - -/* This reference is needed so that we can reset preview when changes occur on options */ -void MainPage::SetPrintTarget(void *print_struct) -{ - m_print_struct = print_struct; -} - -void MainPage::PrintProgress(PrintTask^ sender, PrintTaskProgressingEventArgs^ args) -{ - assert(IsBackgroundThread()); - this->m_curr_print_count = args->DocumentPageCount; - - /* Update the progress bar if it is still active */ - this->Dispatcher->RunAsync(CoreDispatcherPriority::Low, - ref new DispatchedHandler([this]() - { - if (this->xaml_PrintStack->Visibility != Windows::UI::Xaml::Visibility::Collapsed) - { - xaml_PrintProgress->Value = - 100.0 * (double)m_curr_print_count / (double)GetPrintPageCount(); - } - })); -} - -void MainPage::PrintProgressTile(int total_tiles) -{ - assert(IsBackgroundThread()); - double step_size = 100.0 / ((double)GetPrintPageCount() * (double)total_tiles); - /* Update the progress bar if it is still active. The tiling of each - page can be slow on the surface if the resolution is high, hence - the need for this feedback */ - this->Dispatcher->RunAsync(CoreDispatcherPriority::Low, - ref new DispatchedHandler([this, step_size]() - { - if (this->xaml_PrintStack->Visibility != Windows::UI::Xaml::Visibility::Collapsed) - { - xaml_PrintProgress->Value += step_size; - } - })); -} - -void MainPage::PrintCompleted(PrintTask^ sender, PrintTaskCompletedEventArgs^ args) -{ - assert(IsBackgroundThread()); - m_print_active = PRINT_INACTIVE; - this->Dispatcher->RunAsync(CoreDispatcherPriority::Low, - ref new DispatchedHandler([this]() - { - xaml_PrintStack->Visibility = Windows::UI::Xaml::Visibility::Collapsed; - xaml_PrintProgress->Value = 0; - })); -} - -void mupdf_cpp::MainPage::HideProgress(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) -{ - xaml_PrintStack->Visibility = Windows::UI::Xaml::Visibility::Collapsed; -} |