protected override void OnCreate(Bundle bundle)
{
base.OnCreate (bundle);
// Set our view from the "main" layout resource
SetContentView (Resource.Layout.Main);
Assembly asm = Assembly.GetExecutingAssembly();
Stream pdfStream = asm.GetManifestResourceStream("PDFToImage.xfinium.pdf");
document = new PdfFixedDocument (pdfStream);
pdfStream.Close();
Spinner pageNumbers = FindViewById<Spinner>(Resource.Id.pageNumberSpinner);
ArrayAdapter<string> adapter = new ArrayAdapter<string>(this, Android.Resource.Layout.SimpleSpinnerDropDownItem);
pageNumbers.Adapter = adapter;
adapter.Add("Please select a page number");
for (int i = 1; i <= document.Pages.Count; i++)
{
adapter.Add(i.ToString());
}
Button button = FindViewById<Button> (Resource.Id.btnConvertToImage);
button.Click += delegate {
if ((pageNumbers.SelectedItemPosition >= 1) && (pageNumbers.SelectedItemPosition <= document.Pages.Count))
{
PdfPageRenderer renderer = new PdfPageRenderer (document.Pages [pageNumbers.SelectedItemPosition - 1]);
Bitmap pageImage = renderer.ConvertPageToImage (96);
ImageView pageImageView = FindViewById<ImageView> (Resource.Id.pageImageView);
pageImageView.SetImageBitmap(pageImage);
}
};
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
string pageNumber = "";
if (NavigationContext.QueryString.TryGetValue("pagenumber", out pageNumber))
{
PdfFixedDocument document = (Application.Current as App).Document;
var t = Task <PdfArgbIntRenderingSurface> .Factory.StartNew(() =>
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[int.Parse(pageNumber)]);
PdfArgbIntRenderingSurface rs = renderer.CreateRenderingSurface <PdfArgbIntRenderingSurface>(96, 96);
PdfRendererSettings settings = new PdfRendererSettings(96, 96, rs);
renderer.ConvertPageToImage(settings);
return(rs);
})
.ContinueWith(value =>
{
PdfArgbIntRenderingSurface rs = value.Result;
WriteableBitmap wb = new WriteableBitmap(rs.Width, rs.Height);
Array.Copy(rs.Bitmap, wb.Pixels, rs.Bitmap.Length);
pageImage.Width = wb.PixelWidth;
pageImage.Height = wb.PixelHeight;
pageImage.Source = wb;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
string pageNumber = "";
if (NavigationContext.QueryString.TryGetValue("pagenumber", out pageNumber))
{
PdfFixedDocument document = (Application.Current as App).Document;
var t = Task<PdfArgbIntRenderingSurface>.Factory.StartNew(() =>
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[int.Parse(pageNumber)]);
PdfArgbIntRenderingSurface rs = renderer.CreateRenderingSurface<PdfArgbIntRenderingSurface>(96, 96);
PdfRendererSettings settings = new PdfRendererSettings(96, 96, rs);
renderer.ConvertPageToImage(settings);
return rs;
})
.ContinueWith(value =>
{
PdfArgbIntRenderingSurface rs = value.Result;
WriteableBitmap wb = new WriteableBitmap(rs.Width, rs.Height);
Array.Copy(rs.Bitmap, wb.Pixels, rs.Bitmap.Length);
pageImage.Width = wb.PixelWidth;
pageImage.Height = wb.PixelHeight;
pageImage.Source = wb;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
Assembly asm = Assembly.GetExecutingAssembly();
Stream pdfStream = asm.GetManifestResourceStream("PDFToImage.xfinium.pdf");
document = new PdfFixedDocument(pdfStream);
pdfStream.Close();
Spinner pageNumbers = FindViewById <Spinner>(Resource.Id.pageNumberSpinner);
ArrayAdapter <string> adapter = new ArrayAdapter <string>(this, Android.Resource.Layout.SimpleSpinnerDropDownItem);
pageNumbers.Adapter = adapter;
adapter.Add("Please select a page number");
for (int i = 1; i <= document.Pages.Count; i++)
{
adapter.Add(i.ToString());
}
Button button = FindViewById <Button> (Resource.Id.btnConvertToImage);
button.Click += delegate {
if ((pageNumbers.SelectedItemPosition >= 1) && (pageNumbers.SelectedItemPosition <= document.Pages.Count))
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages [pageNumbers.SelectedItemPosition - 1]);
Bitmap pageImage = renderer.ConvertPageToImage(96);
ImageView pageImageView = FindViewById <ImageView> (Resource.Id.pageImageView);
pageImageView.SetImageBitmap(pageImage);
}
};
}
/// <summary>
/// The methods provided in this section are simply used to allow
/// NavigationHelper to respond to the page's navigation methods.
/// <para>
/// Page specific logic should be placed in event handlers for the
/// <see cref="NavigationHelper.LoadState"/>
/// and <see cref="NavigationHelper.SaveState"/>.
/// The navigation parameter is available in the LoadState method
/// in addition to page state preserved during an earlier session.
/// </para>
/// </summary>
/// <param name="e">Provides data for navigation methods and event
/// handlers that cannot cancel the navigation request.</param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
this.navigationHelper.OnNavigatedTo(e);
int pageNumber = (int)e.Parameter;
PdfFixedDocument document = (Application.Current as App).Document;
var t = Task <PdfBgraByteRenderingSurface> .Factory.StartNew(() =>
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[pageNumber]);
PdfBgraByteRenderingSurface rs = renderer.CreateRenderingSurface <PdfBgraByteRenderingSurface>(96, 96);
PdfRendererSettings settings = new PdfRendererSettings(96, 96, rs);
renderer.ConvertPageToImage(settings);
return(rs);
})
.ContinueWith(value =>
{
PdfBgraByteRenderingSurface rs = value.Result;
WriteableBitmap pageBitmap = new WriteableBitmap(rs.Width, rs.Height);
Stream imageStream = pageBitmap.PixelBuffer.AsStream();
imageStream.Write(rs.Bitmap, 0, rs.Bitmap.Length);
pageImage.Width = pageBitmap.PixelWidth;
pageImage.Height = pageBitmap.PixelHeight;
pageImage.Source = pageBitmap;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
public static response GenerateImgThumbNail(string sType, string path, string fileName, int width, int height)
{
FileInfo fi = new FileInfo(Path.Combine(path, fileName));
//string outputFile = fileName.Replace(fi.Extension, sType == "s" ? "_s.gif" : "_m.gif");
string outputFile = fileName.Replace(fi.Extension, "_" + sType + ".jpg");
switch (fi.Extension.ToLower())
{
case ".pdf":
try
{
FileStream fs = new FileStream(Path.Combine(path, fileName), FileMode.Open, FileAccess.Read);
PdfFixedDocument pDoc = new PdfFixedDocument(fs);
fs.Dispose();
PdfPageRenderer renderer = new PdfPageRenderer(pDoc.Pages[0]);
PdfRendererSettings s = new PdfRendererSettings();
s.DpiX = s.DpiY = 96;
FileStream pngStream = File.OpenWrite(Path.Combine(path, fileName.Replace(".pdf", ".png")));
renderer.ConvertPageToImage(pngStream, PdfPageImageFormat.Png, s);
pngStream.Flush();
pngStream.Dispose();
response r = SaveThumbNail(sType, path, fileName.Replace(".pdf", ".png"), null, width, height);
try
{
File.Delete(Path.Combine(path, fileName.Replace(".pdf", ".png")));
}
catch { }
return(r);
//return new response(false, "eroare", null, null, null);
}
catch (Exception exp) { LogWriter.Log(exp); return(new response(false, exp.ToString(), null, null, new System.Collections.Generic.List <Error>()
{
new Error(exp)
})); }
case ".jpg":
case ".jpeg":
case ".png":
case ".bmp":
try
{
return(SaveThumbNail(sType, path, fileName, null, width, height));
}
catch (Exception exp) { LogWriter.Log(exp); return(new response(false, exp.ToString(), null, null, new System.Collections.Generic.List <Error>()
{
new Error(exp)
})); }
default:
Error err = ErrorParser.ErrorMessage("unsupportedFormat");
return(new response(false, err.ERROR_MESSAGE, null, null, new System.Collections.Generic.List <Error>()
{
err
}));
}
}
private void btnConvert_Click(object sender, RoutedEventArgs e)
{
if (selectedPageNumber != -1)
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[selectedPageNumber]);
WriteableBitmap pageBitmap = renderer.ConvertPageToImage(96);
pageImage.Source = pageBitmap;
}
}
private void btnConvert_Click(object sender, RoutedEventArgs e)
{
if (selectedPageNumber != -1)
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[selectedPageNumber]);
WriteableBitmap pageBitmap = renderer.ConvertPageToImage(96);
pageImage.Source = pageBitmap;
}
}
/// <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.
/// This parameter is typically used to configure the page.</param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
Assembly assembly = typeof(MainPage).GetTypeInfo().Assembly;
Stream pdfStream =
assembly.GetManifestResourceStream("Xfinium.Pdf.Samples.Pro.WP81.PageThumbnails.xfinium.pdf");
PdfFixedDocument document = new PdfFixedDocument(pdfStream);
pdfStream.Dispose();
int i = 0;
pageThumbnailImages = new Image[document.Pages.Count];
for (i = 0; i < document.Pages.Count; i++)
{
Border border = new Border();
border.BorderThickness = new Thickness(1);
border.BorderBrush = new SolidColorBrush(Colors.Black);
border.Margin = new Thickness(10, 10, 0, 0);
Image pageImage = new Image();
border.Child = pageImage;
pageThumbnailImages[i] = pageImage;
pageThumbnails.Children.Add(border);
}
for (i = 0; i < document.Pages.Count; i++)
{
int index = i;
var t = Task <PdfBgraByteRenderingSurface> .Factory.StartNew(() =>
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[index]);
PdfBgraByteRenderingSurface rs = renderer.CreateRenderingSurface <PdfBgraByteRenderingSurface>(thumbnailDpi, thumbnailDpi);
PdfRendererSettings settings = new PdfRendererSettings(thumbnailDpi, thumbnailDpi, rs);
renderer.ConvertPageToImage(settings);
return(rs);
})
.ContinueWith(value =>
{
PdfBgraByteRenderingSurface rs = value.Result;
WriteableBitmap pageBitmap = new WriteableBitmap(rs.Width, rs.Height);
Stream imageStream = pageBitmap.PixelBuffer.AsStream();
imageStream.Write(rs.Bitmap, 0, rs.Bitmap.Length);
pageThumbnailImages[index].Width = pageBitmap.PixelWidth;
pageThumbnailImages[index].Height = pageBitmap.PixelHeight;
pageThumbnailImages[index].Source = pageBitmap;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
}
private void PhoneApplicationPage_Loaded(object sender, RoutedEventArgs e)
{
StreamResourceInfo xfiniumPdf = Application.GetResourceStream(new Uri("xfinium.pdf", UriKind.Relative));
PdfFixedDocument document = new PdfFixedDocument(xfiniumPdf.Stream);
xfiniumPdf.Stream.Close();
(Application.Current as App).Document = document;
int i = 0;
pageThumbnailImages = new Image[document.Pages.Count];
for (i = 0; i < document.Pages.Count; i++)
{
Border border = new Border();
border.BorderThickness = new Thickness(1);
border.BorderBrush = new SolidColorBrush(Colors.Black);
border.Margin = new Thickness(10, 10, 0, 0);
Image pageImage = new Image();
pageImage.Tag = i;
pageImage.Tap += pageImage_Tap;
border.Child = pageImage;
pageThumbnailImages[i] = pageImage;
pageThumbnails.Children.Add(border);
}
for (i = 0; i < document.Pages.Count; i++)
{
int index = i;
var t = Task<PdfArgbIntRenderingSurface>.Factory.StartNew(() =>
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[index]);
PdfArgbIntRenderingSurface rs = renderer.CreateRenderingSurface<PdfArgbIntRenderingSurface>(thumbnailDpi, thumbnailDpi);
PdfRendererSettings settings = new PdfRendererSettings(thumbnailDpi, thumbnailDpi, rs);
renderer.ConvertPageToImage(settings);
return rs;
})
.ContinueWith(value =>
{
PdfArgbIntRenderingSurface rs = value.Result;
WriteableBitmap wb = new WriteableBitmap(rs.Width, rs.Height);
Array.Copy(rs.Bitmap, wb.Pixels, rs.Bitmap.Length);
pageThumbnailImages[index].Width = wb.PixelWidth;
pageThumbnailImages[index].Height = wb.PixelHeight;
pageThumbnailImages[index].Source = wb;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
}
private void PhoneApplicationPage_Loaded(object sender, RoutedEventArgs e)
{
StreamResourceInfo xfiniumPdf = Application.GetResourceStream(new Uri("xfinium.pdf", UriKind.Relative));
PdfFixedDocument document = new PdfFixedDocument(xfiniumPdf.Stream);
xfiniumPdf.Stream.Close();
(Application.Current as App).Document = document;
int i = 0;
pageThumbnailImages = new Image[document.Pages.Count];
for (i = 0; i < document.Pages.Count; i++)
{
Border border = new Border();
border.BorderThickness = new Thickness(1);
border.BorderBrush = new SolidColorBrush(Colors.Black);
border.Margin = new Thickness(10, 10, 0, 0);
Image pageImage = new Image();
pageImage.Tag = i;
pageImage.Tap += pageImage_Tap;
border.Child = pageImage;
pageThumbnailImages[i] = pageImage;
pageThumbnails.Children.Add(border);
}
for (i = 0; i < document.Pages.Count; i++)
{
int index = i;
var t = Task <PdfArgbIntRenderingSurface> .Factory.StartNew(() =>
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[index]);
PdfArgbIntRenderingSurface rs = renderer.CreateRenderingSurface <PdfArgbIntRenderingSurface>(thumbnailDpi, thumbnailDpi);
PdfRendererSettings settings = new PdfRendererSettings(thumbnailDpi, thumbnailDpi, rs);
renderer.ConvertPageToImage(settings);
return(rs);
})
.ContinueWith(value =>
{
PdfArgbIntRenderingSurface rs = value.Result;
WriteableBitmap wb = new WriteableBitmap(rs.Width, rs.Height);
Array.Copy(rs.Bitmap, wb.Pixels, rs.Bitmap.Length);
pageThumbnailImages[index].Width = wb.PixelWidth;
pageThumbnailImages[index].Height = wb.PixelHeight;
pageThumbnailImages[index].Source = wb;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
}
private void Action_GetColumn(string pdfPath, string column)
{
if (System.IO.File.Exists(pdfPath) == false)
{
MessageBox.Show("File does not exist");
return;
}
PdfDocument doc = PdfDocument.Load(pdfPath);
string baseDocumentPath = Path.GetDirectoryName(txtPdfPath.Text);
string baseDocumentFilename = Path.GetFileNameWithoutExtension(txtPdfPath.Text);
IEnumerable <int> selectedPages = GetSelectedPages(doc.Pages.Count);
var columns = new List <string>();
int pageNum = 0;
foreach (PdfDocumentPage page in doc.Pages)
{
pageNum++;
if (selectedPages.Contains(pageNum) == false)
{
continue;
}
PdfTextExtractor extractor = new PdfTextExtractor(page);
PdfTextElementColumn columnData;
if (column.StartsWith("#"))
{
string[] columnParts = column.Substring(1).Split(';');
double y = Convert.ToDouble(columnParts[0]);
double x1 = Convert.ToDouble(columnParts[1]);
double x2 = Convert.ToDouble(columnParts[2]);
columnData = extractor.GetColumn(null, y, x1, x2, x1, x2);
}
else
{
columnData = extractor.GetColumn(column);
}
if (chkRender.Checked)
{
var pdfPageRenderer = new PdfPageRenderer(extractor);
Bitmap bmp = pdfPageRenderer.Render();
pdfPageRenderer.RenderColumn(columnData, bmp);
string fileName = Path.Combine(baseDocumentPath, string.Format("{0}_{1:0000}.png", baseDocumentFilename, pageNum));
bmp.Save(fileName, ImageFormat.Png);
bmp.Dispose();
GC.Collect();
}
columns.AddRange(columnData.Elements.Select(t => t.VisibleText));
}
txtOutput.Lines = columns.ToArray();
}
partial void ConvertPageButtonTouchUp(UIButton sender)
{
PageRenderingIndicator.StartAnimating();
var t = Task <CGImage> .Factory.StartNew(() =>
{
CGImage pageImage = null;
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[currentPageNumber]);
pageImage = renderer.ConvertPageToImage(96);
return(pageImage);
})
.ContinueWith(value =>
{
PageImageView.Image = new UIImage(value.Result);
PageRenderingIndicator.StopAnimating();
}, TaskScheduler.FromCurrentSynchronizationContext());
}
partial void ConvertPageButtonTouchUp(UIButton sender)
{
PageRenderingIndicator.StartAnimating();
var t = Task<CGImage>.Factory.StartNew(() =>
{
CGImage pageImage = null;
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[currentPageNumber]);
pageImage = renderer.ConvertPageToImage(96);
return pageImage;
})
.ContinueWith(value =>
{
PageImageView.Image = new UIImage(value.Result);
PageRenderingIndicator.StopAnimating();
}, TaskScheduler.FromCurrentSynchronizationContext());
}
private void btnConvert_Click(object sender, RoutedEventArgs e)
{
if (cbxPageNumber.SelectedIndex != -1)
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[cbxPageNumber.SelectedIndex]);
PdfBgraByteRenderingSurface rs = renderer.CreateRenderingSurface<PdfBgraByteRenderingSurface>(96, 96);
PdfRendererSettings settings = new PdfRendererSettings(96, 96, rs);
renderer.ConvertPageToImage(settings);
WriteableBitmap pageBitmap = new WriteableBitmap(rs.Width, rs.Height);
Stream imageStream = pageBitmap.PixelBuffer.AsStream();
imageStream.Write(rs.Bitmap, 0, rs.Bitmap.Length);
//pageImage.Width = pageBitmap.PixelWidth;
//pageImage.Height = pageBitmap.PixelHeight;
pageImage.Source = pageBitmap;
}
}
private void btnConvert_Click(object sender, RoutedEventArgs e)
{
if (cbxPageNumber.SelectedIndex != -1)
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[cbxPageNumber.SelectedIndex]);
PdfBgraByteRenderingSurface rs = renderer.CreateRenderingSurface <PdfBgraByteRenderingSurface>(96, 96);
PdfRendererSettings settings = new PdfRendererSettings(96, 96, rs);
renderer.ConvertPageToImage(settings);
WriteableBitmap pageBitmap = new WriteableBitmap(rs.Width, rs.Height);
Stream imageStream = pageBitmap.PixelBuffer.AsStream();
imageStream.Write(rs.Bitmap, 0, rs.Bitmap.Length);
//pageImage.Width = pageBitmap.PixelWidth;
//pageImage.Height = pageBitmap.PixelHeight;
pageImage.Source = pageBitmap;
}
}
private void btnRender_Click(object sender, EventArgs e)
{
if (File.Exists(txtPdfPath.Text) == false)
{
MessageBox.Show("File does not exist");
return;
}
PdfDocument doc = PdfDocument.Load(txtPdfPath.Text);
string baseDocumentPath = Path.GetDirectoryName(txtPdfPath.Text);
string baseDocumentFilename = Path.GetFileNameWithoutExtension(txtPdfPath.Text);
List <string> lines = new List <string>();
lines.Add(string.Format("Filename : {0}", baseDocumentFilename));
lines.Add(string.Format("Number of Pages : {0}", doc.Pages.Count));
IEnumerable <int> selectedPages = GetSelectedPages(doc.Pages.Count);
int pageNum = 0;
foreach (PdfDocumentPage page in doc.Pages)
{
pageNum++;
if (selectedPages.Contains(pageNum) == false)
{
continue;
}
PdfPageRenderer pdfPageRenderer = new PdfPageRenderer(page);
Bitmap bmp = pdfPageRenderer.Render();
lines.Add(string.Format("Page {0:0000} TextElements : {1}", pageNum, pdfPageRenderer.Extractor.Elements.Count));
// Save image to disk
string fileName = Path.Combine(baseDocumentPath, string.Format("{0}_{1:0000}.png", baseDocumentFilename, pageNum));
bmp.Save(fileName, ImageFormat.Png);
bmp.Dispose();
GC.Collect();
}
txtOutput.Lines = lines.ToArray();
}
private void btnObjectAnalysis_Click(object sender, EventArgs e)
{
//use the PDF library to break out all of the PDF Objects
Readers.PDFReader Rdr = new Readers.PDFReader();
Rdr.getObjectsFromPDF(PDFFileName, out PDFPageWidth, out PDFPageHeight);
//break up text objects with multiple words into a single word per object
DataBase.DB DocObjects = new DataBase.DB();
DocObjects.LocateKeywords();
PdfFixedDocument doc = new PdfFixedDocument(PDFFileName);
PdfPageRenderer renderer = new PdfPageRenderer(doc.Pages[0]);
FileStream PNGStream = File.OpenWrite(PDFFileName + ".png");
renderer.ConvertPageToImage(dpi, PNGStream, PdfPageImageFormat.Png);
PNGStream.Flush();
PNGStream.Close();
LoadImageBox();
PopulateGridView("Text");
}
/// <summary>
/// The methods provided in this section are simply used to allow
/// NavigationHelper to respond to the page's navigation methods.
/// <para>
/// Page specific logic should be placed in event handlers for the
/// <see cref="NavigationHelper.LoadState"/>
/// and <see cref="NavigationHelper.SaveState"/>.
/// The navigation parameter is available in the LoadState method
/// in addition to page state preserved during an earlier session.
/// </para>
/// </summary>
/// <param name="e">Provides data for navigation methods and event
/// handlers that cannot cancel the navigation request.</param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
this.navigationHelper.OnNavigatedTo(e);
int pageNumber = (int)e.Parameter;
PdfFixedDocument document = (Application.Current as App).Document;
var t = Task<PdfBgraByteRenderingSurface>.Factory.StartNew(() =>
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[pageNumber]);
PdfBgraByteRenderingSurface rs = renderer.CreateRenderingSurface<PdfBgraByteRenderingSurface>(96, 96);
PdfRendererSettings settings = new PdfRendererSettings(96, 96, rs);
renderer.ConvertPageToImage(settings);
return rs;
})
.ContinueWith(value =>
{
PdfBgraByteRenderingSurface rs = value.Result;
WriteableBitmap pageBitmap = new WriteableBitmap(rs.Width, rs.Height);
Stream imageStream = pageBitmap.PixelBuffer.AsStream();
imageStream.Write(rs.Bitmap, 0, rs.Bitmap.Length);
pageImage.Width = pageBitmap.PixelWidth;
pageImage.Height = pageBitmap.PixelHeight;
pageImage.Source = pageBitmap;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
private void SchedulePageRendering(int pos)
{
// schedule rendering or load from cache procedure
ThreadPool.QueueUserWorkItem ((p) => {
if (pos >= 0) {
PdfPageRenderer renderer = new PdfPageRenderer (doc.Pages [pos]);
Bitmap pageImage = renderer.ConvertPageToImage (95);
Bitmap mutableBitmap = pageImage.Copy (Bitmap.Config.Argb8888, true);
Color C = new Color (mutableBitmap.GetPixel (1, 1));
for (int f = 0; f < 0 /*mutableBitmap.Width*/; f++) {//623
for (int j = 0; j < 0/*Convert.ToInt32(mutableBitmap.Height*0.05)*/; j++) {
//Color C = new Color (BitMaps[count].GetPixel (i+20, j + 30));//pageimage
mutableBitmap.SetPixel (f, j, C);
}
for (int j = mutableBitmap.Height - Convert.ToInt32(mutableBitmap.Height*0.05); j < mutableBitmap.Height; j++) {//900 936
mutableBitmap.SetPixel (f, j, C);
}
}
//
// string documentsPath = System.Environment.GetFolderPath (System.Environment.SpecialFolder.Personal);
// var cachepath = System.IO.Path.Combine (documentsPath, "Cache" + pos + ".jpg");
// Bitmap BM = BitmapFactory.DecodeFile (cachepath);
Bitmap BM = mutableBitmap;
int width = (int)BM.Width;
int height = (int)BM.Height;
// Phase I, try to load the file first
try {
if (BM != null) {
lock (syncObject) {
//Console.WriteLine("loaded cached instance");
ScaleImageView currentView = views [pos];
//if view exists update it, otherwise dismiss the bitmap
if (currentView != null) {
currentView.Post (() => {
lock (syncObject) {
ReplaceBitmap (pos, BM);
currentView.SetImageBitmap (BM);
currentView.Invalidate ();
}
});
} else {
DismissBitmap (BM);
}
}
return;
}
} catch (Exception e) {
Console.WriteLine ("can't load cached bitmap, re-rendering: " +
e.Message);
}
// try
// {
// Console.WriteLine("creating new instance");
//
// // phase II, re-rendering
// // render the page using default settings
// int[] bitmapData = new int[width*height];
// ManualResetEvent me = null;
// if (ProgressiveRendering)
// {
// me = new ManualResetEvent(false);
// ThreadPool.QueueUserWorkItem((a) =>
// {
// Thread.Sleep(500);
//
// while (!me.WaitOne(0))
// {
// lock (syncObject)
// {
// ImageView currentView = views[pos];
// if (currentView !=null)
// {
// Bitmap targetBitmap = bitmaps[pos];
//
// BitmapHelper.CopyPixelDataToBitmap(targetBitmap,bitmapData,width);
//
// currentView.PostInvalidate();
// }
// else
// {
// return;
// }
// }
//
// Thread.Sleep(200);
// }
// });
// }
//
//
//
// }
// catch (Exception e)
// {
// Console.WriteLine("page rendering error: " + e.Message);
// }
}
});
}
/// <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.
/// This parameter is typically used to configure the page.</param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
Assembly assembly = typeof(MainPage).GetTypeInfo().Assembly;
Stream pdfStream =
assembly.GetManifestResourceStream("Xfinium.Pdf.Samples.Pro.WP81.PageThumbnails.xfinium.pdf");
PdfFixedDocument document = new PdfFixedDocument(pdfStream);
pdfStream.Dispose();
int i = 0;
pageThumbnailImages = new Image[document.Pages.Count];
for (i = 0; i < document.Pages.Count; i++)
{
Border border = new Border();
border.BorderThickness = new Thickness(1);
border.BorderBrush = new SolidColorBrush(Colors.Black);
border.Margin = new Thickness(10, 10, 0, 0);
Image pageImage = new Image();
border.Child = pageImage;
pageThumbnailImages[i] = pageImage;
pageThumbnails.Children.Add(border);
}
for (i = 0; i < document.Pages.Count; i++)
{
int index = i;
var t = Task<PdfBgraByteRenderingSurface>.Factory.StartNew(() =>
{
PdfPageRenderer renderer = new PdfPageRenderer(document.Pages[index]);
PdfBgraByteRenderingSurface rs = renderer.CreateRenderingSurface<PdfBgraByteRenderingSurface>(thumbnailDpi, thumbnailDpi);
PdfRendererSettings settings = new PdfRendererSettings(thumbnailDpi, thumbnailDpi, rs);
renderer.ConvertPageToImage(settings);
return rs;
})
.ContinueWith(value =>
{
PdfBgraByteRenderingSurface rs = value.Result;
WriteableBitmap pageBitmap = new WriteableBitmap(rs.Width, rs.Height);
Stream imageStream = pageBitmap.PixelBuffer.AsStream();
imageStream.Write(rs.Bitmap, 0, rs.Bitmap.Length);
pageThumbnailImages[index].Width = pageBitmap.PixelWidth;
pageThumbnailImages[index].Height = pageBitmap.PixelHeight;
pageThumbnailImages[index].Source = pageBitmap;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
}
