protected override bool OnDrawn (Cairo.Context cr)
{
var a = Allocation;
// ensure cr does not get disposed before it is passed back to Gtk
var context = new TempCairoContextBackend (Util.GetScaleFactor (this));
context.Context = cr;
OnDraw (new Rectangle (a.X, a.Y, a.Width, a.Height), context);
return base.OnDrawn (cr);
}
protected override bool OnDrawn(Cairo.Context cr)
{
var a = Allocation;
// ensure cr does not get disposed before it is passed back to Gtk
var context = new TempCairoContextBackend(Util.GetScaleFactor(this));
context.Context = cr;
OnDraw(new Rectangle(a.X, a.Y, a.Width, a.Height), context);
return(base.OnDrawn(cr));
}
protected override bool OnDrawn (Cairo.Context cr)
{
// ensure cr does not get disposed before it is passed back to Gtk
var context = new TempCairoContextBackend (Util.GetScaleFactor (this));
context.Context = cr;
// Set context Origin from initial Cairo CTM (to ensure new Xwt CTM is Identity Matrix)
context.Origin.X = cr.Matrix.X0;
context.Origin.Y = cr.Matrix.Y0;
// Gtk3 Cairo Context cannot access area to be redrawn, so use full Canvas area.
// QueueDraw (rect) sets Clip (rect) internally, so drawing is limited correctly
OnDraw (new Rectangle (0, 0, Allocation.Width, Allocation.Height), context);
return base.OnDrawn (cr);
}
protected override bool OnDrawn(Cairo.Context cr)
{
// ensure cr does not get disposed before it is passed back to Gtk
var context = new TempCairoContextBackend(Util.GetScaleFactor(this));
context.Context = cr;
// Set context Origin from initial Cairo CTM (to ensure new Xwt CTM is Identity Matrix)
context.Origin.X = cr.Matrix.X0;
context.Origin.Y = cr.Matrix.Y0;
// Gtk3 Cairo Context cannot access area to be redrawn, so use full Canvas area.
// QueueDraw (rect) sets Clip (rect) internally, so drawing is limited correctly
OnDraw(new Rectangle(0, 0, Allocation.Width, Allocation.Height), context);
return(base.OnDrawn(cr));
}