public bool OpenPdfFile(Stream stream)
{
//if (this.FileName == fileName)
//{
// return true;
//}
CloseFile();
pdfFile = PDFFile.Open(stream);
if (pdfFile == null)
{
return(false);
}
if (pdfFile.PageCount == 0)
{
pdfFile.Dispose();
pdfFile = null;
return(false);
}
//this.FileName = fileName;
double s = 96.0 / 72.0;
for (int i = 0; i < pdfFile.PageCount; i++)
{
PDFSize size = pdfFile.GetPageSize(i);
PdfPageInfo page = new PdfPageInfo(i, (int)(size.Width * s), (int)(size.Height * s));
this.Pages.Add(page);
}
double scale = (double)this.Height / (double)this.Width;
double pdfScale = this.Pages[0].PdfHeight / this.Pages[0].PdfWidth;
if (scale < pdfScale)
{
SetScale((double)this.Height / this.Pages[0].PdfHeight);
}
else
{
SetScale((double)this.Width / this.Pages[0].PdfWidth);
}
MoveToPage(0);
return(true);
}
void CreateControl(PdfPageInfo page, int scroll)
{
int top = page.Top - scroll;
if (page.PageControl == null)
{
page.CreateControl(top);
page.SetScale(this.PageScale);
this.panelContent.Controls.Add(page.PageControl);
page.PageControl.OnRender = this.RenderPage;
}
else
{
page.PageControl.Top = top;
page.PageControl.Size = page.Size;
}
}
private void AddPages_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
try
{
_pdfRasterizer = new PdfRasterizer(_curFileNames[_curBackgroundLoadingFileIdx], POINTS_PER_INCH);
}
catch(Exception excp)
{
logger.Error("PDF Editor requires Ghostscript {0}", excp.Message);
MessageBox.Show("PDF Editor requires Ghostscript to be installed");
return;
}
try
{
int startNewPageNum = 1;
int startNewFileNum = 1;
int pageTotal = 0;
GetFileAndPageOfLastOutDoc(out startNewFileNum, out startNewPageNum, out pageTotal);
// Extract page images
for (int i = 0; i < _pdfRasterizer.NumPages(); i++)
{
if ((worker.CancellationPending == true))
{
e.Cancel = true;
break;
}
System.Drawing.Image pageImg = _pdfRasterizer.GetPageImage(i + 1, false);
object[] args = new object[4];
args[0] = i;
args[1] = startNewPageNum;
args[2] = startNewFileNum;
args[3] = pageImg;
this.Dispatcher.BeginInvoke((Action<int, int, int, System.Drawing.Image>)delegate(int pageIdx, int startNewPgNum, int startNewFilNum, System.Drawing.Image pagImg)
{
BitmapImage bitmap = ConvertToBitmap(pagImg);
PdfPageInfo pgInfo = new PdfPageInfo();
pgInfo.PageNum = pageIdx + 1;
pgInfo.FileIndex = _curBackgroundLoadingFileIdx;
pgInfo.ThumbBitmap = bitmap;
pgInfo.SplitAfter = false;
pgInfo.DeletePage = false;
pgInfo.PageRotation = 0;
pgInfo.ShowFileNum = (_curBackgroundLoadingFileIdx > 0);
pgInfo.NewDocPageNum = pageIdx + startNewPgNum;
pgInfo.NewDocFileNum = startNewFilNum;
_pdfPageList.Add(pgInfo);
}, args);
Thread.Sleep(50);
(sender as BackgroundWorker).ReportProgress(i * 100 / _pdfRasterizer.NumPages(), null);
}
}
catch(Exception excp)
{
logger.Error("PDF Editor AddPages_DoWork failed excp {0}", excp.Message);
}
finally
{
// Close file
_pdfRasterizer.Close();
_pdfRasterizer = null;
}
}
