From 4c9611cb3d9f18322f8e77f8ba493799d77c0a0a Mon Sep 17 00:00:00 2001
From: Robin Watts <robin.watts@artifex.com>
Date: Fri, 3 Apr 2015 12:01:49 +0100
Subject: Remove gsview from mupdf repo.
It has its own repo now. See http://git.ghostscript.com/?p=gsview.git
---
platform/windows/mupdf_cpp/MainPage.xaml.cpp | 2394 --------------------------
1 file changed, 2394 deletions(-)
delete mode 100644 platform/windows/mupdf_cpp/MainPage.xaml.cpp
(limited to 'platform/windows/mupdf_cpp/MainPage.xaml.cpp')
diff --git a/platform/windows/mupdf_cpp/MainPage.xaml.cpp b/platform/windows/mupdf_cpp/MainPage.xaml.cpp
deleted file mode 100644
index a57a7a23..00000000
--- a/platform/windows/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;
-}
--
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