public override void Render(int page, Graphics graphics, float dpiX, float dpiY, Rectangle bounds)
{
_document.CurrentPage = page + 1;
_document.RenderDPI = dpiX;
_document.ClientBounds = bounds;
_document.CurrentX = -bounds.Left;
_document.CurrentY = -bounds.Top;
var hdc = graphics.GetHdc();
try
{
// xPDF uses the control to get sizing information. We use
// a dummy control to satisfy this requirement.
_dummyControl.Size = new Size(bounds.Width, 1);
_document.FitToWidth(_dummyControl.Handle);
_document.RenderPage(_dummyControl.Handle);
_document.DrawPageHDC(hdc);
}
finally
{
graphics.ReleaseHdc(hdc);
}
}
public static Image RenderPage(PDFWrapper doc, int page)
{
doc.CurrentPage = page + 1;
doc.CurrentX = 0;
doc.CurrentY = 0;
doc.RenderPage(IntPtr.Zero);
// create an image to draw the page into
var buffer = new Bitmap(doc.PageWidth, doc.PageHeight);
doc.ClientBounds = new Rectangle(0, 0, doc.PageWidth, doc.PageHeight);
using (var g = Graphics.FromImage(buffer))
{
var hdc = g.GetHdc();
try
{
doc.DrawPageHDC(hdc);
}
finally
{
g.ReleaseHdc();
}
}
return(buffer);
}
void pageViewer1_PaintControl(object sender, Rectangle view, Point location, Graphics g)
{
Size size = new Size(view.Right, view.Bottom);
Rectangle rectangle = new Rectangle(location, size);
doc.ClientBounds = rectangle;
doc.CurrentX = view.X;
doc.CurrentY = view.Y;
doc.DrawPageHDC(g.GetHdc());
g.ReleaseHdc();
}
private void doubleBufferControl1_PaintControl(object sender, Rectangle view, Point location, Graphics g)
{
if (_pdfDoc != null)
{
Size sF = new Size(view.Right, view.Bottom);
Rectangle r = new Rectangle(location, sF);
_pdfDoc.ClientBounds = r;
_pdfDoc.CurrentX = view.X;
_pdfDoc.CurrentY = view.Y;
_pdfDoc.DrawPageHDC(g.GetHdc());
g.ReleaseHdc();
/*
* Size sF = new Size(view.Right, view.Bottom);
* Rectangle r = new Rectangle(location, sF);
*
* _pdfDoc.SliceBox = new Rectangle(Convert.ToInt32(view.X * _pdfDoc.Zoom / 72), Convert.ToInt32(view.Y * _pdfDoc.Zoom / 72), view.Width, view.Height);
* _pdfDoc.RenderPage(pageViewControl1.Handle, true);
*
* _pdfDoc.ClientBounds = r;
* _pdfDoc.CurrentX = 0;
* _pdfDoc.CurrentY = 0;
*
* _pdfDoc.DrawPageHDC(g.GetHdc());
* g.ReleaseHdc();*/
/*
* if (_pdfDoc.RenderDPI >= g.DpiX)
* {
* foreach (PageLink pl in _pdfDoc.GetLinks(_pdfDoc.CurrentPage))
* {
* //Convert coordinates
* Point p1 = Point.Ceiling(_pdfDoc.PointUserToDev(new PointF(pl.Bounds.Left, pl.Bounds.Top)));
* Point p2 = Point.Ceiling(_pdfDoc.PointUserToDev(new PointF(pl.Bounds.Right, pl.Bounds.Bottom)));
* Rectangle linkLoc = new Rectangle(p1.X, p1.Y, p2.X - p1.X, p1.Y - p2.Y);
* //Translate
* linkLoc.Offset(-view.X, -view.Y);
* linkLoc.Offset(r.X, r.Y);
* linkLoc.Offset(0, p2.Y - p1.Y);
* //Draw Rectangle
* g.DrawRectangle(Pens.Blue, linkLoc);
* }
* }
*/
}
}
protected Bitmap GetBitmapBase(double Resolution, bool Transparent = true)
{
if (mypdfDoc != null && mypdfDoc.PageCount > 0)
{
double dpi = 72 * Resolution / Consts.ptspertikzunit;
PDFPage p = mypdfDoc.Pages[1];
double pwidth = p.Width, pheight = p.Height;
// the following lines are as in the PDFPage.GetBitmap() function
int width = Convert.ToInt32(pwidth * dpi / 254);
int height = Convert.ToInt32(pheight * dpi / 254);
int safetymargin = 0; // >0 => hack to prevent cropping near boundary
// if we'd need too much memory -> don't proceed
if (width * height > 20e6)
{
GlobalUI.UI.AddStatusLine(this, "Pdf rendering aborted: it's too big!", true);
return(null);
}
//Stopwatch s = new Stopwatch();
//s.Start();
mypdfDoc.RenderDPI = 72 * Resolution / Consts.ptspertikzunit;
//System.Windows.Forms.PictureBox pic = new System.Windows.Forms.PictureBox();
mypdfDoc.CurrentPage = 1;
/*Added since 1.0.6.2*/
mypdfDoc.CurrentX = 0;
mypdfDoc.CurrentY = 0;
mypdfDoc.ClientBounds = new System.Drawing.Rectangle(0, 0, width + safetymargin, height + safetymargin); //new Rectangle(0, 0, mypdfDoc.PageWidth, mypdfDoc.PageHeight);
mypdfDoc.RenderPage(IntPtr.Zero, true); ////pic.Handle); // it works with zero, very strange!!!
//Bitmap bbb = mypdfDoc.Pages[1].GetBitmap(72 * Resolution / Consts.ptspertikzunit, false);
//System.Drawing.Image I = mypdfDoc.Pages[1].GetImage(1);
//System.Drawing.Image I2 = mypdfDoc.Pages[1].GetImage(0);
//if (mypdfDoc.PageWidth * mypdfDoc.PageHeight == 0)
if (height * width == 0)
{
return(null);
}
Bitmap _backbuffer = new System.Drawing.Bitmap(width + safetymargin, height + safetymargin); //new Bitmap(mypdfDoc.PageWidth, mypdfDoc.PageHeight);
using (Graphics g = Graphics.FromImage(_backbuffer))
{
/*New thread safe method*/
mypdfDoc.DrawPageHDC(g.GetHdc());
g.ReleaseHdc();
}
//s.Stop();
//MainWindow.AddStatusLine("DrawpageHdc took " + s.ElapsedMilliseconds + " ms");
//pic.Dispose();
if (Transparent)
{
_backbuffer.MakeTransparent(System.Drawing.Color.White);
_backbuffer.MakeTransparent(System.Drawing.Color.FromArgb(255, 253, 253, 253));
_backbuffer.MakeTransparent(System.Drawing.Color.FromArgb(255, 254, 254, 254));
}
// test
//_backbuffer.Save(@"C:\temp\temp.bmp");
//mypdfDoc.ExportJpg(@"C:\temp\temp.jpg",1,1,75,100,9000);
return(_backbuffer);
}
else
{
return(null);
}
}
