protected virtual void ShapeSurface(Context cr, Cairo.Color color)
{
cr.Operator = Operator.Source;
#if MONO_1_2_5
Cairo.Pattern p = new Cairo.SolidPattern(new Cairo.Color(0, 0, 0, 0));
#else
Cairo.Pattern p = new Cairo.SolidPattern(new Cairo.Color(0, 0, 0, 0), true);
#endif
cr.Source = p;
p.Destroy();
cr.Paint();
cr.Operator = Operator.Over;
#if MONO_1_2_5
Cairo.Pattern r = new SolidPattern(color);
#else
Cairo.Pattern r = new SolidPattern(color, true);
#endif
cr.Source = r;
r.Destroy();
cr.MoveTo(round, 0);
if (x_align == 1.0)
{
cr.LineTo(Allocation.Width, 0);
}
else
{
cr.Arc(Allocation.Width - round, round, round, -Math.PI * 0.5, 0);
}
if (x_align == 1.0 || y_align == 1.0)
{
cr.LineTo(Allocation.Width, Allocation.Height);
}
else
{
cr.Arc(Allocation.Width - round, Allocation.Height - round, round, 0, Math.PI * 0.5);
}
if (y_align == 1.0)
{
cr.LineTo(0, Allocation.Height);
}
else
{
cr.Arc(round, Allocation.Height - round, round, Math.PI * 0.5, Math.PI);
}
cr.Arc(round, round, round, Math.PI, Math.PI * 1.5);
cr.ClosePath();
cr.Fill();
}
public bool OnExpose (Context ctx, Gdk.Rectangle allocation)
{
if (frames == 0)
start = DateTime.UtcNow;
frames ++;
TimeSpan elapsed = DateTime.UtcNow - start;
double fraction = elapsed.Ticks / (double) duration.Ticks;
double opacity = Math.Sin (Math.Min (fraction, 1.0) * Math.PI * 0.5);
ctx.Operator = Operator.Source;
SurfacePattern p = new SurfacePattern (begin_buffer.Surface);
ctx.Matrix = begin_buffer.Fill (allocation);
p.Filter = Filter.Fast;
ctx.Source = p;
ctx.Paint ();
ctx.Operator = Operator.Over;
ctx.Matrix = end_buffer.Fill (allocation);
SurfacePattern sur = new SurfacePattern (end_buffer.Surface);
#if MONO_1_2_5
Pattern black = new SolidPattern (new Cairo.Color (0.0, 0.0, 0.0, opacity));
#else
Pattern black = new SolidPattern (new Cairo.Color (0.0, 0.0, 0.0, opacity), true);
#endif
//ctx.Source = black;
//ctx.Fill ();
sur.Filter = Filter.Fast;
ctx.Source = sur;
ctx.Mask (black);
//ctx.Paint ();
ctx.Matrix = new Matrix ();
ctx.MoveTo (allocation.Width / 2.0, allocation.Height / 2.0);
ctx.Source = new SolidPattern (1.0, 0, 0);
#if debug
ctx.ShowText (String.Format ("{0} {1} {2} {3} {4} {5} {6} {7}",
frames,
sur.Status,
p.Status,
opacity, fraction, elapsed, start, DateTime.UtcNow));
#endif
sur.Destroy ();
p.Destroy ();
return fraction < 1.0;
}
protected virtual void ShapeSurface(Context cr, Cairo.Color color)
{
cr.Operator = Operator.Source;
Cairo.Pattern p = new Cairo.SolidPattern(new Cairo.Color(0, 0, 0, 0));
cr.SetSource(p);
p.Dispose();
cr.Paint();
cr.Operator = Operator.Over;
Cairo.Pattern r = new SolidPattern(color);
cr.SetSource(r);
r.Dispose();
cr.MoveTo(round, 0);
if (x_align == 1.0)
{
cr.LineTo(Allocation.Width, 0);
}
else
{
cr.Arc(Allocation.Width - round, round, round, -Math.PI * 0.5, 0);
}
if (x_align == 1.0 || y_align == 1.0)
{
cr.LineTo(Allocation.Width, Allocation.Height);
}
else
{
cr.Arc(Allocation.Width - round, Allocation.Height - round, round, 0, Math.PI * 0.5);
}
if (y_align == 1.0)
{
cr.LineTo(0, Allocation.Height);
}
else
{
cr.Arc(round, Allocation.Height - round, round, Math.PI * 0.5, Math.PI);
}
cr.Arc(round, round, round, Math.PI, Math.PI * 1.5);
cr.ClosePath();
cr.Fill();
}
protected virtual void ShapeSurface(Context cr, Cairo.Color color)
{
cr.Operator = Operator.Source;
Cairo.Pattern p = new Cairo.SolidPattern (new Cairo.Color (0, 0, 0, 0));
cr.Source = p;
p.Destroy ();
cr.Paint ();
cr.Operator = Operator.Over;
Cairo.Pattern r = new SolidPattern (color);
cr.Source = r;
r.Destroy ();
cr.MoveTo (round, 0);
if (x_align == 1.0)
cr.LineTo (Allocation.Width, 0);
else
cr.Arc (Allocation.Width - round, round, round, - Math.PI * 0.5, 0);
if (x_align == 1.0 || y_align == 1.0)
cr.LineTo (Allocation.Width, Allocation.Height);
else
cr.Arc (Allocation.Width - round, Allocation.Height - round, round, 0, Math.PI * 0.5);
if (y_align == 1.0)
cr.LineTo (0, Allocation.Height);
else
cr.Arc (round, Allocation.Height - round, round, Math.PI * 0.5, Math.PI);
cr.Arc (round, round, round, Math.PI, Math.PI * 1.5);
cr.ClosePath ();
cr.Fill ();
}
/// <summary>
/// Exports the specified <see cref="PlotModel" /> to the specified <see cref="Stream" />.
/// </summary>
/// <param name="model">The model.</param>
/// <param name="stream">The output stream.</param>
public void Export(IPlotModel model, Stream stream)
{
using (var bm = new ImageSurface(Format.ARGB32, this.Width, this.Height))
{
using (var g = new Context(bm))
{
if (this.Background.IsVisible())
{
g.Save();
using (var pattern = new SolidPattern(this.Background.R, this.Background.G, this.Background.B, this.Background.A))
{
g.SetSource(pattern);
g.Rectangle(0, 0, this.Width, this.Height);
g.Fill();
}
g.Restore();
}
var rc = new GraphicsRenderContext { RendersToScreen = false };
rc.SetGraphicsTarget(g);
model.Update(true);
model.Render(rc, this.Width, this.Height);
// write to a temporary file
var tmp = Guid.NewGuid() + ".png";
bm.WriteToPng(tmp);
var bytes = File.ReadAllBytes(tmp);
// write to the stream
stream.Write(bytes, 0, bytes.Length);
// delete the temporary file
File.Delete(tmp);
}
}
}
