public Cairo.Pattern GetPattern(ApplicationContext actx, double scaleFactor)
{
if (pattern == null || currentScaleFactor != scaleFactor)
{
if (pattern != null)
{
pattern.Dispose();
}
Gdk.Pixbuf pb = ((GtkImage)Image.Backend).GetBestFrame(actx, scaleFactor, Image.Size.Width, Image.Size.Height, false);
using (var imgs = new Cairo.ImageSurface(Cairo.Format.ARGB32, (int)(Image.Size.Width * scaleFactor), (int)(Image.Size.Height * scaleFactor))) {
var ic = new Cairo.Context(imgs);
ic.Scale((double)imgs.Width / (double)pb.Width, (double)imgs.Height / (double)pb.Height);
Gdk.CairoHelper.SetSourcePixbuf(ic, pb, 0, 0);
ic.Paint();
imgs.Flush();
((IDisposable)ic).Dispose();
pattern = new Cairo.SurfacePattern(imgs);
}
pattern.Extend = Cairo.Extend.Repeat;
var cm = new Cairo.Matrix();
cm.Scale(scaleFactor, scaleFactor);
pattern.Matrix = cm;
currentScaleFactor = scaleFactor;
}
return(pattern);
}
public override void Draw(Bitmap bitmap, int x, int y)
{
using (Cairo.Surface s = new BitmapSurface(bitmap)) {
cr.SetSourceSurface(s, x + xOffset, y + yOffset);
using (Cairo.SurfacePattern pattern = (Cairo.SurfacePattern)cr.GetSource()) {
pattern.Filter = Cairo.Filter.Nearest;
}
cr.Paint();
}
}
public override object Create(object img)
{
Gdk.Pixbuf pb = (Gdk.Pixbuf)img;
var imgs = new Cairo.ImageSurface (Cairo.Format.ARGB32, pb.Width, pb.Height);
var ic = new Cairo.Context (imgs);
Gdk.CairoHelper.SetSourcePixbuf (ic, pb, 0, 0);
ic.Paint ();
imgs.Flush ();
((IDisposable)ic).Dispose ();
var p = new Cairo.SurfacePattern (imgs);
p.Extend = Cairo.Extend.Repeat;
return p;
}
public object Create(object img)
{
Gdk.Pixbuf pb = (Gdk.Pixbuf)img;
var imgs = new Cairo.ImageSurface(Cairo.Format.ARGB32, pb.Width, pb.Height);
var ic = new Cairo.Context(imgs);
Gdk.CairoHelper.SetSourcePixbuf(ic, pb, 0, 0);
ic.Paint();
imgs.Flush();
((IDisposable)ic).Dispose();
var p = new Cairo.SurfacePattern(imgs);
p.Extend = Cairo.Extend.Repeat;
return(p);
}
public Cairo.Pattern GetPattern (ApplicationContext actx, double scaleFactor)
{
if (pattern == null || currentScaleFactor != scaleFactor) {
if (pattern != null)
pattern.Dispose ();
Gdk.Pixbuf pb = ((GtkImage)Image.Backend).GetBestFrame (actx, scaleFactor, Image.Size.Width, Image.Size.Height, false);
using (var imgs = new Cairo.ImageSurface (Cairo.Format.ARGB32, (int)(Image.Size.Width * scaleFactor), (int)(Image.Size.Height * scaleFactor))) {
var ic = new Cairo.Context (imgs);
ic.Scale ((double)imgs.Width / (double)pb.Width, (double)imgs.Height / (double)pb.Height);
Gdk.CairoHelper.SetSourcePixbuf (ic, pb, 0, 0);
ic.Paint ();
imgs.Flush ();
((IDisposable)ic).Dispose ();
pattern = new Cairo.SurfacePattern (imgs);
}
pattern.Extend = Cairo.Extend.Repeat;
var cm = new Cairo.Matrix ();
cm.Scale (scaleFactor, scaleFactor);
pattern.Matrix = cm;
currentScaleFactor = scaleFactor;
}
return pattern;
}
public override void DrawImage(GraphicsHandler graphics, RectangleF source, RectangleF destination)
{
FixupAlpha();
var context = graphics.Control;
context.Save();
context.Rectangle(destination.ToCairo());
double scalex = 1;
double scaley = 1;
if (Math.Abs(source.Width - destination.Width) > 0.5f || Math.Abs(source.Height - destination.Height) > 0.5f)
{
scalex = (double)destination.Width / (double)source.Width;
scaley = (double)destination.Height / (double)source.Height;
context.Scale(scalex, scaley);
}
Cairo.SurfacePattern pattern;
if (Surface != null)
{
// we got a surface (by drawing on the bitmap using Graphics), so use that directly.
pattern = new Cairo.SurfacePattern(Surface);
var m = new Cairo.Matrix();
m.InitTranslate(source.Left - (destination.Left / scalex), source.Top - (destination.Top / scaley));
pattern.Matrix = m;
context.SetSource(pattern);
}
else
{
Gdk.CairoHelper.SetSourcePixbuf(context, Control, (destination.Left / scalex) - source.Left, (destination.Top / scaley) - source.Top);
pattern = (Cairo.SurfacePattern)context.GetSource();
}
pattern.Filter = graphics.ImageInterpolation.ToCairo();
context.Fill();
context.Restore();
pattern.Dispose();
/*
* Gdk.Pixbuf pb = Control;
*
*
* if (source.Width != destination.Width || source.Height != destination.Height) {
* Gdk.Pixbuf pbDest = new Gdk.Pixbuf (Gdk.Colorspace.Rgb, true, 8, destination.Width, destination.Height);
* double scalex = (double)(destination.Width) / (double)(source.Width);
* double scaley = (double)(destination.Height) / (double)(source.Height);
* pb.Scale (pbDest, 0, 0, destination.Width, destination.Height, -(source.X * scalex), -(source.Y * scaley),
* scalex, scaley, Gdk.InterpType.Bilinear);
* source.Location = new Point (0, 0);
* pb = pbDest;
* }
* /*
*
* pb.RenderToDrawable (graphics.Control, graphics.GC, source.X, source.Y, destination.X, destination.Y, destination.Width, destination.Height, Gdk.RgbDither.None, 0, 0);
* /*
*
* Gdk.Pixmap pm, mask;
* pb.RenderPixmapAndMask(out pm, out mask, 0);
* graphics.Drawable.DrawDrawable(graphics.GC, pm, source.X, source.Y, destination.X, destination.Y, destination.Width, destination.Height);
* pm.Dispose();
* mask.Dispose();
* /*
*
* graphics.Drawable.DrawPixbuf(null, pb, source.X, source.Y, destination.X, destination.Y, destination.Width, destination.Height, Gdk.RgbDither.None, 0, 0);
* /*
*/
/*if (pb != Control)
* pb.Dispose ();*/
}
private void OnDrawingarea1ExposeEvent(object o, Gtk.ExposeEventArgs args)
{
double scale = PintaCore.Workspace.Scale;
double x = PintaCore.Workspace.Offset.X;
double y = PintaCore.Workspace.Offset.Y;
using (Cairo.Context g = CairoHelper.Create (drawingarea1.GdkWindow)) {
// Black 1px border around image
g.DrawRectangle (new Cairo.Rectangle (x, y, PintaCore.Workspace.CanvasSize.X + 1, PintaCore.Workspace.CanvasSize.Y + 1), new Cairo.Color (0, 0, 0), 1);
// Transparent checkerboard pattern
using (Cairo.SurfacePattern sp = new Cairo.SurfacePattern (PintaCore.Layers.TransparentLayer.Surface)) {
sp.Extend = Cairo.Extend.Repeat;
g.FillRectangle (new Cairo.Rectangle (x, y, PintaCore.Workspace.CanvasSize.X, PintaCore.Workspace.CanvasSize.Y), sp);
}
// User's layers
g.Save ();
g.Translate (x, y);
g.Scale (scale, scale);
foreach (Layer layer in PintaCore.Layers.GetLayersToPaint ()) {
g.SetSourceSurface (layer.Surface, (int)layer.Offset.X, (int)layer.Offset.Y);
g.PaintWithAlpha (layer.Opacity);
}
g.Restore ();
// Selection outline
if (PintaCore.Layers.ShowSelection) {
g.Save ();
g.Translate (x, y);
g.Translate (0.5, 0.5);
g.Scale (scale, scale);
g.AppendPath (PintaCore.Layers.SelectionPath);
if (PintaCore.Tools.CurrentTool.Name.Contains ("Select") && !PintaCore.Tools.CurrentTool.Name.Contains ("Selected")) {
g.Color = new Cairo.Color (.7, .8, .9, .2);
g.FillRule = Cairo.FillRule.EvenOdd;
g.FillPreserve ();
}
g.SetDash (new double[] { 2 / scale, 4 / scale }, 0);
g.LineWidth = 1 / scale;
g.Color = new Cairo.Color (0, 0, 0);
g.Stroke ();
g.Restore ();
}
}
}
