public /* Interface KGuiControl */ void GuiChartSnap()
{
if (NSThread.IsMain)
{
CGBitmapContext theCanvas = null; // store the canvas internally generated by GenPainter for use by DoPaste
Func <Colorer> GenColorer = () => {
return(new CGColorer());
};
Func <SKSize, ChartPainter> GenPainter = (SKSize canvasSize) => {
CGBitmapContext canvas = CG.Bitmap((int)canvasSize.Width, (int)canvasSize.Height);
CG.FlipCoordinateSystem(canvas);
theCanvas = canvas;
return(new CGChartPainter(canvas));
};
Action <CGBitmapContext> DoPaste = (CGBitmapContext canvas) => {
var pasteboard = NSPasteboard.GeneralPasteboard;
pasteboard.ClearContents();
pasteboard.WriteObjects(new NSImage[] { new NSImage(canvas.ToImage(), new CGSize(canvas.Width, canvas.Height)) });
};
CGSize cgChartSize = this.kaemikaChart.Frame.Size;
Export.Snap(GenColorer, GenPainter, new SKSize((float)cgChartSize.Width, (float)cgChartSize.Height));
try { DoPaste(theCanvas); } catch { }
}
else
{
_ = BeginInvokeOnMainThreadAsync(() => { GuiChartSnap(); return(ack); }).Result;
}
}
// Implement this to draw on the canvas.
public override void DrawRect(CGRect dirtyRect)
{
base.DrawRect(dirtyRect);
var context = NSGraphicsContext.CurrentContext.CGContext;
CG.FlipCoordinateSystem(context);
KDeviceHandler.Draw(new CGDevicePainter(context), 0, 0, (int)dirtyRect.Width, (int)dirtyRect.Height);
}