/// <summary>
/// Page is 1 based
/// </summary>
/// <param name="page"></param>
/// <param name="height"></param>
/// <returns></returns>
internal byte[] GetPageByHeightAsImage(int page, double height)
{
return(sorax_pdf_renderer.GetPageByHeightAsImage(page, height));
}
private void ResizedPageImageItemThreadEntry()
{
WPFDoEvents.AssertThisCodeIsRunningInTheUIThread();
while (true)
{
ResizedPageImageItemRequest resized_page_image_item_request = null;
// Utilities.LockPerfTimer l1_clk = Utilities.LockPerfChecker.Start();
lock (resized_page_image_item_requests)
{
// l1_clk.LockPerfTimerStop();
// If there is nothing more to do...
if (0 == resized_page_image_item_request_orders.Count)
{
Interlocked.Decrement(ref num_resized_page_image_item_thread_running);
break;
}
// Get a piece of work
int page = resized_page_image_item_request_orders[resized_page_image_item_request_orders.Count - 1];
resized_page_image_item_request_orders.RemoveAt(resized_page_image_item_request_orders.Count - 1);
if (resized_page_image_item_requests.TryGetValue(page, out resized_page_image_item_request))
{
resized_page_image_item_requests.Remove(page);
}
else
{
continue;
}
}
Logging.Debug("Performing page redraw for {0}", resized_page_image_item_request.page);
// Check that the page is still visible
ASSERT.Test(resized_page_image_item_request.page_control != null);
if (!resized_page_image_item_request.page_control.PageIsInView)
{
continue;
}
SafeThreadPool.QueueUserWorkItem(o =>
{
WPFDoEvents.AssertThisCodeIs_NOT_RunningInTheUIThread();
try
{
//PngBitmapDecoder decoder = new PngBitmapDecoder(new MemoryStream(pdf_document.PDFRenderer.GetPageByHeightAsImage(resized_page_image_item_request.page, resized_page_image_item_request.height)), BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.OnLoad);
//BitmapSource bitmap = decoder.Frames[0];
//bitmap.Freeze();
BitmapImage bitmap = new BitmapImage();
using (MemoryStream ms = new MemoryStream(SoraxPDFRenderer.GetPageByHeightAsImage(pdf_document.DocumentPath, pdf_document.PDFPassword, resized_page_image_item_request.page, resized_page_image_item_request.height, resized_page_image_item_request.width)))
{
bitmap.BeginInit();
bitmap.StreamSource = ms;
bitmap.CacheOption = BitmapCacheOption.OnLoad;
bitmap.EndInit();
bitmap.Freeze();
}
if (null != bitmap)
{
resized_page_image_item_request.callback(bitmap, resized_page_image_item_request.height, resized_page_image_item_request.width);
}
}
catch (Exception ex)
{
Logging.Error(ex, "There was an error while resizing a PDF page image");
}
});
}
}
private void DisplayThumbnail()
{
ImageThumbnail.Source = null;
TxtAbstract.Text = "";
if (null == pdf_document)
{
return;
}
SafeThreadPool.QueueUserWorkItem(o =>
{
try
{
if (pdf_document.DocumentExists)
{
const double IMAGE_PERCENTAGE = 0.5;
using (MemoryStream ms = new MemoryStream(SoraxPDFRenderer.GetPageByHeightAsImage(pdf_document.DocumentPath, pdf_document.PDFPassword, page, (int)Math.Round(ImageThumbnail.Height / IMAGE_PERCENTAGE), (int)Math.Round(ImageThumbnail.Width / IMAGE_PERCENTAGE))))
{
Bitmap image = (Bitmap)Image.FromStream(ms);
PDFOverlayRenderer.RenderAnnotations(image, pdf_document, page, specific_pdf_annotation);
PDFOverlayRenderer.RenderHighlights(image, pdf_document, page);
PDFOverlayRenderer.RenderInks(image, pdf_document, page);
image = image.Clone(new RectangleF {
Width = image.Width, Height = (int)Math.Round(image.Height * IMAGE_PERCENTAGE)
}, image.PixelFormat);
BitmapSource image_page = BitmapImageTools.CreateBitmapSourceFromImage(image);
WPFDoEvents.InvokeAsyncInUIThread(() =>
{
ImageThumbnail.Source = image_page;
if (null != ImageThumbnail.Source)
{
ImageThumbnail.Visibility = Visibility.Visible;
}
else
{
ImageThumbnail.Visibility = Visibility.Collapsed;
}
});
}
}
else
{
string abstract_text = pdf_document.Abstract;
if (PDFAbstractExtraction.CANT_LOCATE != abstract_text)
{
WPFDoEvents.InvokeAsyncInUIThread(() =>
{
TxtAbstract.Text = abstract_text;
});
}
}
}
catch (Exception ex)
{
Logging.Error(ex, "There was a problem showing the PDF thumbnail");
}
});
}
private void UpdateLibraryStatistics_Stats_Background_CoverFlow(WebLibraryDetail web_library_detail)
{
WPFDoEvents.AssertThisCodeIs_NOT_RunningInTheUIThread();
if (web_library_detail.Xlibrary == null)
{
return;
}
List <PDFDocument> pdf_documents_all = web_library_detail.Xlibrary.PDFDocuments;
// The list of recommended items
DocumentDisplayWorkManager ddwm = new DocumentDisplayWorkManager();
{
int ITEMS_IN_LIST = 5;
// Upcoming reading is:
// interrupted
// top priority
// read again
// recently added and no status
pdf_documents_all.Sort(PDFDocumentListSorters.DateAddedToDatabase);
foreach (string reading_stage in new string[] { Choices.ReadingStages_INTERRUPTED, Choices.ReadingStages_TOP_PRIORITY, Choices.ReadingStages_READ_AGAIN })
{
foreach (PDFDocument pdf_document in pdf_documents_all)
{
if (!pdf_document.DocumentExists)
{
continue;
}
if (pdf_document.ReadingStage == reading_stage)
{
if (!ddwm.ContainsPDFDocument(pdf_document))
{
ddwm.AddDocumentDisplayWork(DocumentDisplayWork.StarburstColor.Pink, reading_stage, pdf_document);
if (ddwm.Count >= ITEMS_IN_LIST)
{
break;
}
}
}
}
}
}
{
int ITEMS_IN_LIST = 3;
// Recently added
{
pdf_documents_all.Sort(PDFDocumentListSorters.DateAddedToDatabase);
int num_added = 0;
foreach (PDFDocument pdf_document in pdf_documents_all)
{
if (!pdf_document.DocumentExists)
{
continue;
}
if (!ddwm.ContainsPDFDocument(pdf_document))
{
ddwm.AddDocumentDisplayWork(DocumentDisplayWork.StarburstColor.Green, "Added Recently", pdf_document);
if (++num_added >= ITEMS_IN_LIST)
{
break;
}
}
}
}
// Recently read
{
pdf_documents_all.Sort(PDFDocumentListSorters.DateLastRead);
int num_added = 0;
foreach (PDFDocument pdf_document in pdf_documents_all)
{
if (!pdf_document.DocumentExists)
{
continue;
}
if (!ddwm.ContainsPDFDocument(pdf_document))
{
ddwm.AddDocumentDisplayWork(DocumentDisplayWork.StarburstColor.Blue, "Read Recently", pdf_document);
if (++num_added >= ITEMS_IN_LIST)
{
break;
}
}
}
}
}
WPFDoEvents.InvokeAsyncInUIThread(() =>
{
WPFDoEvents.AssertThisCodeIsRunningInTheUIThread();
// And fill the placeholders
try
{
UpdateLibraryStatistics_Stats_Background_GUI_AddAllPlaceHolders(ddwm.ddws);
SafeThreadPool.QueueUserWorkItem(o =>
{
try
{
// Now render each document
using (Font font = new Font("Times New Roman", 11.0f))
{
using (StringFormat string_format = new StringFormat
{
Alignment = StringAlignment.Center,
LineAlignment = StringAlignment.Center
})
{
var color_matrix = new ColorMatrix();
color_matrix.Matrix33 = 0.9f;
using (var image_attributes = new ImageAttributes())
{
image_attributes.SetColorMatrix(color_matrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
foreach (DocumentDisplayWork ddw in ddwm.ddws)
{
try
{
using (MemoryStream ms = new MemoryStream(SoraxPDFRenderer.GetPageByHeightAsImage(ddw.pdf_document.DocumentPath, ddw.pdf_document.PDFPassword, 1, (int)Math.Round(PREVIEW_IMAGE_HEIGHT / PREVIEW_IMAGE_PERCENTAGE), (int)Math.Round(PREVIEW_IMAGE_WIDTH / PREVIEW_IMAGE_PERCENTAGE))))
{
Bitmap page_bitmap = (Bitmap)System.Drawing.Image.FromStream(ms);
page_bitmap = page_bitmap.Clone(new RectangleF {
Width = page_bitmap.Width, Height = (int)Math.Round(page_bitmap.Height * PREVIEW_IMAGE_PERCENTAGE)
}, page_bitmap.PixelFormat);
using (Graphics g = Graphics.FromImage(page_bitmap))
{
int CENTER = 60;
int RADIUS = 60;
{
BitmapImage starburst_bi = null;
switch (ddw.starburst_color)
{
case DocumentDisplayWork.StarburstColor.Blue:
starburst_bi = Icons.GetAppIcon(Icons.PageCornerBlue);
break;
case DocumentDisplayWork.StarburstColor.Green:
starburst_bi = Icons.GetAppIcon(Icons.PageCornerGreen);
break;
case DocumentDisplayWork.StarburstColor.Pink:
starburst_bi = Icons.GetAppIcon(Icons.PageCornerPink);
break;
default:
starburst_bi = Icons.GetAppIcon(Icons.PageCornerOrange);
break;
}
Bitmap starburst_image = BitmapImageTools.ConvertBitmapSourceToBitmap(starburst_bi);
g.SmoothingMode = SmoothingMode.AntiAlias;
g.DrawImage(
starburst_image,
new Rectangle(CENTER - RADIUS, CENTER - RADIUS, 2 * RADIUS, 2 * RADIUS),
0,
0,
starburst_image.Width,
starburst_image.Height,
GraphicsUnit.Pixel,
image_attributes
);
}
using (Matrix mat = new Matrix())
{
mat.RotateAt(-50, new PointF(CENTER / 2, CENTER / 2));
g.Transform = mat;
string wrapped_caption = ddw.starburst_caption;
wrapped_caption = wrapped_caption.ToLower();
wrapped_caption = Thread.CurrentThread.CurrentCulture.TextInfo.ToTitleCase(wrapped_caption);
wrapped_caption = wrapped_caption.Replace(" ", "\n");
g.DrawString(wrapped_caption, font, Brushes.Black, new PointF(CENTER / 2, CENTER / 2), string_format);
}
}
BitmapSource page_bitmap_source = BitmapImageTools.CreateBitmapSourceFromImage(page_bitmap);
ddw.page_bitmap_source = page_bitmap_source;
}
#if false // do this bit further below, all at once for all entries, in the UI thread!
try
{
UpdateLibraryStatistics_Stats_Background_GUI_FillPlaceHolder(ddw);
}
catch (Exception ex)
{
Logging.Error(ex, "UpdateLibraryStatistics_Stats_Background_CoverFlow: Error occurred.");
throw;
}
#endif
}
catch (Exception ex)
{
Logging.Warn(ex, "There was a problem loading a preview image for document {0}", ddw.pdf_document.Fingerprint);
Logging.Error(ex, "UpdateLibraryStatistics_Stats_Background_CoverFlow: Error occurred.");
// do not rethrow the error: allow the other pages in the pages to be rendered...
ddw.page_bitmap_source = Backgrounds.GetBackground(Backgrounds.PageRenderingFailed_ClassicNews);
}
}
}
}
}
}
catch (Exception ex)
{
Logging.Error(ex, "UpdateLibraryStatistics_Stats_Background_CoverFlow: Error occurred.");
}
// Don't care if there were errors in the process so far: the pages which got rendered, SHOULD make it into the UI anyway!
WPFDoEvents.InvokeAsyncInUIThread(() =>
{
foreach (DocumentDisplayWork ddw in ddwm.ddws)
{
try
{
UpdateLibraryStatistics_Stats_Background_GUI_FillPlaceHolder(ddw);
}
catch (Exception ex)
{
Logging.Error(ex, "UpdateLibraryStatistics_Stats_Background_CoverFlow: Error occurred.");
Logging.Warn(ex, "There was a problem loading a preview image for document {0}", ddw.pdf_document.Fingerprint);
}
}
if (0 == ddwm.ddws.Count)
{
ButtonCoverFlow.IsChecked = false;
UpdateLibraryStatistics();
}
});
});
}
catch (Exception ex)
{
Logging.Error(ex, "UpdateLibraryStatistics_Stats_Background_CoverFlow: Error occurred.");
}
if (0 == ddwm.ddws.Count)
{
ButtonCoverFlow.IsChecked = false;
UpdateLibraryStatistics();
}
});
}
