private void DisplayThumbnail()
{
ImageThumbnail.Source = null;
TxtAbstract.Text = "";
if (null == pdf_document)
{
return;
}
try
{
if (pdf_document.DocumentExists)
{
const double IMAGE_PERCENTAGE = 0.5;
using (MemoryStream ms = new MemoryStream(pdf_document.PDFRenderer.GetPageByHeightAsImage(page, ImageThumbnail.Height / 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);
ImageThumbnail.Source = image_page;
}
}
else
{
string abstract_text = pdf_document.Abstract;
if (PDFAbstractExtraction.CANT_LOCATE != abstract_text)
{
TxtAbstract.Text = abstract_text;
}
}
}
catch (Exception ex)
{
Logging.Error(ex, "There was a problem showing the PDF thumbnail");
}
if (null != ImageThumbnail.Source)
{
ImageThumbnail.Visibility = Visibility.Visible;
}
else
{
ImageThumbnail.Visibility = Visibility.Collapsed;
}
}
public override DocumentPage GetPage(int page_zero_based)
{
// Hackity hack
WPFDoEvents.DoEvents();
if (null != last_document_page)
{
last_document_page.Dispose();
last_document_page = null;
}
int page = page_from + page_zero_based;
StatusManager.Instance.UpdateStatus("PDFPrinter", String.Format("Printing page {0} of {1}", page_zero_based + 1, this.PageCount), page_zero_based + 1, this.PageCount, true);
// Render a page at 300 DPI...
using (Image image = Image.FromStream(new MemoryStream(pdf_renderer.GetPageByDPIAsImage(page, 300))))
{
PDFOverlayRenderer.RenderAnnotations(image, pdf_document, page, null);
PDFOverlayRenderer.RenderHighlights(image, pdf_document, page);
PDFOverlayRenderer.RenderInks(image, pdf_document, page);
BitmapSource image_page = BitmapImageTools.CreateBitmapSourceFromImage(image);
image_page.Freeze();
DrawingVisual dv = new DrawingVisual();
using (DrawingContext dc = dv.RenderOpen())
{
// Rotate the image if its orientation does not match the printer
if (
page_size.Width < page_size.Height && image_page.Width > image_page.Height ||
page_size.Width > page_size.Height && image_page.Width < image_page.Height
)
{
image_page = new TransformedBitmap(image_page, new RotateTransform(90));
image_page.Freeze();
}
dc.DrawImage(image_page, new Rect(0, 0, page_size.Width, page_size.Height));
}
++total_pages_printed;
last_document_page = new DocumentPage(dv);
return(last_document_page);
}
}
private void UpdateLibraryStatistics_Stats_Background_CoverFlow()
{
// 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
List <PDFDocument> pdf_documents_all = web_library_detail.library.PDFDocuments;
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
{
List <PDFDocument> pdf_documents = web_library_detail.library.PDFDocuments;
pdf_documents.Sort(PDFDocumentListSorters.DateAddedToDatabase);
int num_added = 0;
foreach (PDFDocument pdf_document in pdf_documents)
{
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
{
List <PDFDocument> pdf_documents = web_library_detail.library.PDFDocuments;
pdf_documents.Sort(PDFDocumentListSorters.DateLastRead);
int num_added = 0;
foreach (PDFDocument pdf_document in pdf_documents)
{
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;
}
}
}
}
}
// And fill the placeholders
WPFDoEvents.InvokeInUIThread(() => UpdateLibraryStatistics_Stats_Background_GUI_AddAllPlaceHolders(ddwm.ddws));
// 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(ddw.pdf_document.PDFRenderer.GetPageByHeightAsImage(1, PREVIEW_IMAGE_HEIGHT / 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;
}
WPFDoEvents.InvokeInUIThread(() => UpdateLibraryStatistics_Stats_Background_GUI_FillPlaceHolder(ddw));
}
catch (Exception ex)
{
Logging.Warn(ex, "There was a problem loading a preview image for document {0}", ddw.pdf_document.Fingerprint);
}
}
}
}
}
if (0 == ddwm.ddws.Count)
{
WPFDoEvents.InvokeAsyncInUIThread(() =>
{
ButtonCoverFlow.IsChecked = false;
UpdateLibraryStatistics();
}
);
}
}
}