protected override void AddPageImpl(float width, float height)
{
if (_closed)
{
throw new Exception("Unable to add a page because the PDFContext is already closed.");
}
if (_data == null)
{
_data = new NSMutableData();
var consumer = new CGDataConsumer(_data);
_context = new CGContextPDF(consumer, CGRect.Empty, null);
_context.SetFillColorSpace(CGColorSpace.CreateDeviceRGB());
_context.SetStrokeColorSpace(CGColorSpace.CreateDeviceRGB());
}
if (_pageOpen)
{
_context.EndPage();
}
_context.BeginPage(new CGRect(0, 0, width, height));
_context.TranslateCTM(0, height);
_context.ScaleCTM(1, -1);
_context.SetLineWidth(1);
_context.SetFillColor(new CGColor(1, 1));
_context.SetStrokeColor(new CGColor(0, 1));
_pageOpen = true;
_canvas.Context = _context;
}
public static void CopyPath(CGPath cgpath)
{
var pdfpath = Path.GetTempPath() + ".pdf";
var context = new CGContextPDF(NSUrl.FromFilename(pdfpath));
CGRect rc = new CGRect(0, 0, 500, 500);
context.BeginPage(rc);
using (var gc = NSGraphicsContext.FromGraphicsPort(context, false))
{
var ctx = gc.CGContext;
//ctx.SetStrokeColor(new CGColor(0, 0, 100));
//ctx.SetLineWidth(2);
//ctx.SetFillColor(new CGColor(100, 0, 0));
ctx.AddPath(cgpath);
ctx.DrawPath(CGPathDrawingMode.FillStroke);
}
context.EndPage();
context.Close();
var data = NSData.FromFile(pdfpath);
NSPasteboard.GeneralPasteboard.ClearContents();
NSPasteboard.GeneralPasteboard.SetDataForType(data, NSPasteboard.NSPdfType);
}
public void Context_Url()
{
using (var url = new NSUrl(filename))
using (var ctx = new CGContextPDF(url)) {
ctx.BeginPage(PDFInfoTest.GetInfo());
ctx.SetUrl(url, CGRect.Empty);
ctx.EndPage();
}
}
public void Dispose()
{
if (context != null)
{
context.EndPage();
context.Dispose();
context = null;
}
}
static void Main()
{
var pdf = new CGContextPDF(NSUrl.FromFilename("demo.pdf"), new RectangleF(0, 0, 617, 792));
pdf.BeginPage(null);
pdf.SetRGBFillColor(1, 0, 0, 1);
pdf.AddArc(300, 300, 100, 0, (float)(2 * Math.PI), true);
pdf.FillPath();
pdf.EndPage();
pdf.Flush();
}
public void Context_Url_Rect()
{
var rect = new CGRect(10, 10, 100, 100);
using (var url = new NSUrl(filename))
using (var ctx = new CGContextPDF(url, rect)) {
ctx.BeginPage((CGPDFPageInfo)null);
ctx.SetDestination("xamarin", rect);
ctx.EndPage();
}
}
static void Main ()
{
NSApplication.Init ();
NSUrl path = NSUrl.FromFilename (Path.Combine ("../../..", "demo.pdf")); //Escape out of generate-pdf.app/Contents/Resources
var pdf = new CGContextPDF (path, new RectangleF (0, 0, 617, 792));
pdf.BeginPage (null);
pdf.SetFillColor (1, 0, 0, 1);
pdf.AddArc (300, 300, 100, 0, (float) (2 * Math.PI), true);
pdf.FillPath ();
pdf.EndPage ();
pdf.Flush ();
}
static void Main()
{
NSApplication.Init();
NSUrl path = NSUrl.FromFilename(Path.Combine("../../..", "demo.pdf")); //Escape out of generate-pdf.app/Contents/Resources
var pdf = new CGContextPDF(path, new RectangleF(0, 0, 617, 792));
pdf.BeginPage(null);
pdf.SetFillColor(1, 0, 0, 1);
pdf.AddArc(300, 300, 100, 0, (float)(2 * Math.PI), true);
pdf.FillPath();
pdf.EndPage();
pdf.Flush();
}
public void Context_Tag()
{
TestRuntime.AssertXcodeVersion(11, 0);
using (var d = new NSDictionary())
using (var url = new NSUrl(filename))
using (var ctx = new CGContextPDF(url)) {
ctx.BeginPage(PDFInfoTest.GetInfo());
ctx.BeginTag(CGPdfTagType.Header, (NSDictionary)null);
ctx.EndTag();
ctx.BeginTag(CGPdfTagType.Caption, d);
ctx.SetUrl(url, CGRect.Empty);
ctx.EndTag();
ctx.EndPage();
}
}
public void Context_Tag_Strong()
{
TestRuntime.AssertXcodeVersion(11, 0);
using (var url = new NSUrl(filename))
using (var ctx = new CGContextPDF(url)) {
var tp = new CGPdfTagProperties()
{
ActualText = "ActualText",
AlternativeText = "AlternativeText",
TitleText = "TitleText",
LanguageText = "LanguageText",
};
ctx.BeginPage(PDFInfoTest.GetInfo());
ctx.BeginTag(CGPdfTagType.Header, tp);
ctx.EndTag();
ctx.BeginTag(CGPdfTagType.Caption, (CGPdfTagProperties)null);
ctx.SetUrl(url, CGRect.Empty);
ctx.EndTag();
ctx.EndPage();
}
}
/// <summary>
/// Exports the image as a PDF with the given file name.
/// </summary>
/// <param name="filename">Filename.</param>
public static void ExportAsPDF(this UIImage image, string filename, CGPDFInfo info, double horizRes = 96, double vertRes = 96)
{
var width = (double)image.Size.Width * (double)image.CurrentScale * 72 * horizRes;
var height = (double)image.Size.Height * (double)image.CurrentScale * 72 * vertRes;
var pdfFile = new NSMutableData();
pdfFile.Init();
var pdfConsumer = new CGDataConsumer(pdfFile);
var mediaBox = new CGRect(0, 0, width, height);
using (var context = new CGContextPDF(pdfConsumer, mediaBox, info)) {
context.BeginPage(new CGPDFPageInfo());
context.DrawImage(mediaBox, image.CGImage);
context.EndPage();
}
var attrs = new NSFileAttributes();
NSFileManager.DefaultManager.CreateFile(filename, pdfFile, attrs);
}