void FillChecks (Context cr, int x, int y, int width, int height)
{
int CHECK_SIZE = 32;
cr.Save ();
Surface check;
using (var target = cr.GetTarget ()) {
check = target.CreateSimilar (Content.Color, 2 * CHECK_SIZE, 2 * CHECK_SIZE);
}
// draw the check
using (Context cr2 = new Context (check)) {
cr2.Operator = Operator.Source;
cr2.SetSourceRGB (0.4, 0.4, 0.4);
cr2.Rectangle (0, 0, 2 * CHECK_SIZE, 2 * CHECK_SIZE);
cr2.Fill ();
cr2.SetSourceRGB (0.7, 0.7, 0.7);
cr2.Rectangle (x, y, CHECK_SIZE, CHECK_SIZE);
cr2.Fill ();
cr2.Rectangle (x + CHECK_SIZE, y + CHECK_SIZE, CHECK_SIZE, CHECK_SIZE);
cr2.Fill ();
}
// Fill the whole surface with the check
SurfacePattern check_pattern = new SurfacePattern (check);
check_pattern.Extend = Extend.Repeat;
cr.SetSource (check_pattern);
cr.Rectangle (0, 0, width, height);
cr.Fill ();
check_pattern.Dispose ();
check.Dispose ();
cr.Restore ();
}
ImageInfo CreateBlur(ImageInfo source)
{
double scale = Math.Max (256 / (double)source.Bounds.Width,
256 / (double)source.Bounds.Height);
var small = new Gdk.Rectangle (0, 0,
(int)Math.Ceiling (source.Bounds.Width * scale),
(int)Math.Ceiling (source.Bounds.Height * scale));
var image = new ImageSurface (Format.Argb32,
small.Width,
small.Height);
var ctx = new Context (image);
ctx.Matrix = source.Fit (small);
ctx.Operator = Operator.Source;
Pattern p = new SurfacePattern (source.Surface);
ctx.SetSource (p);
ctx.Paint ();
p.Dispose ();
ctx.Dispose ();
ImageInfo overlay = null;
using (var normal = image.ToPixbuf ())
{
using (var pixbufBlur = PixbufUtils.Blur (normal, 3, null))
{
overlay = new ImageInfo (pixbufBlur);
}
}
image.Dispose ();
return overlay;
}
public void Apply(Context ctx, Gdk.Rectangle allocation)
{
var p = new SurfacePattern (info.Surface);
ctx.Matrix = new Matrix ();
Matrix m = info.Fit (allocation);
ctx.Operator = Operator.Over;
ctx.Matrix = m;
ctx.SetSource (p);
ctx.Paint ();
var overlay = new SurfacePattern (blur.Surface);
ctx.Matrix = new Matrix ();
ctx.Matrix = blur.Fit (allocation);
ctx.Operator = Operator.Over;
ctx.SetSource (overlay);
// FIXME ouch this is ugly.
if (mask == null)
Radius = Radius;
//ctx.Paint ();
ctx.Mask (mask);
overlay.Dispose ();
p.Dispose ();
}
private void imagepatternToolStripMenuItem_Click(object sender, EventArgs e)
{
lastSelected = "imagepattern";
OnPaintAction = cr =>
{
int w, h;
ImageSurface image;
Pattern pattern;
Matrix matrix = new Matrix();
image = new ImageSurface(romedalenPngData);
w = image.Width;
h = image.Height;
pattern = new SurfacePattern(image);
pattern.Extend = Extend.Repeat;
cr.Translate(128.0, 128.0);
cr.Rotate(Math.PI / 4);
cr.Scale(1 / Math.Sqrt(2), 1 / Math.Sqrt(2));
cr.Translate(-128.0, -128.0);
matrix.InitScale(w/256.0*5.0, h/256.0*5.0);
pattern.Matrix = matrix;
cr.SetSource(pattern);
cr.Rectangle(0, 0, 256.0, 256.0);
cr.Fill();
pattern.Dispose();
image.Dispose();
};
Invalidate();
}
public ImageInfo(ImageInfo info, Gdk.Rectangle allocation)
{
Surface = info.Surface.CreateSimilar (Content.Color,
allocation.Width,
allocation.Height);
var ctx = new Context (Surface);
Bounds = allocation;
ctx.Matrix = info.Fill (allocation);
Pattern p = new SurfacePattern (info.Surface);
ctx.SetSource (p);
ctx.Paint ();
ctx.Dispose ();
p.Dispose ();
}
public ImageInfo(ImageInfo info, Widget w, Gdk.Rectangle bounds)
{
using (var similar = CairoUtils.CreateSurface (w.GdkWindow)) {
Bounds = bounds;
Surface = similar.CreateSimilar (Content.ColorAlpha, Bounds.Width, Bounds.Height);
var ctx = new Context (Surface);
ctx.Matrix = info.Fill (Bounds);
Pattern p = new SurfacePattern (info.Surface);
ctx.SetSource (p);
ctx.Paint ();
ctx.Dispose ();
p.Dispose ();
}
}