void FillChecks (Context cr, int x, int y, int width, int height)
{
int CHECK_SIZE = 32;
cr.Save ();
Surface check = cr.Target.CreateSimilar (Content.Color, 2 * CHECK_SIZE, 2 * CHECK_SIZE);
// draw the check
using (Context cr2 = new Context (check)) {
cr2.Operator = Operator.Source;
cr2.Color = new Color (0.4, 0.4, 0.4);
cr2.Rectangle (0, 0, 2 * CHECK_SIZE, 2 * CHECK_SIZE);
cr2.Fill ();
cr2.Color = new Color (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.Source = check_pattern;
cr.Rectangle (0, 0, width, height);
cr.Fill ();
check_pattern.Destroy ();
check.Destroy ();
cr.Restore ();
}
public bool Convert (FilterRequest req)
{
string source = req.Current.LocalPath;
Uri dest = req.TempUri (Path.GetExtension (source));
using (ImageFile img = ImageFile.Create (source)) {
using (Pixbuf pixbuf = img.Load ()) {
using (ImageInfo info = new ImageInfo (pixbuf)) {
MemorySurface surface = new MemorySurface (Format.Argb32,
pixbuf.Width,
pixbuf.Height);
Context ctx = new Context (surface);
ctx.Matrix = info.Fill (info.Bounds, angle);
Pattern p = new SurfacePattern (info.Surface);
ctx.Source = p;
ctx.Paint ();
((IDisposable)ctx).Dispose ();
p.Destroy ();
using (Pixbuf result = CairoUtils.CreatePixbuf (surface)) {
using (Stream output = File.OpenWrite (dest.LocalPath)) {
img.Save (result, output);
}
}
surface.Flush ();
info.Dispose ();
req.Current = dest;
return true;
}
}
}
}
public ImageInfo (ImageInfo info, Gdk.Rectangle allocation)
{
#if false
Surface = new ImageSurface (Format.RGB24,
allocation.Width,
allocation.Height);
Context ctx = new Context (Surface);
#else
Console.WriteLine ("source status = {0}", info.Surface.Status);
Surface = info.Surface.CreateSimilar (Content.Color,
allocation.Width,
allocation.Height);
System.Console.WriteLine ("status = {1} pointer = {0}", Surface.Handle.ToString (), Surface.Status);
Context ctx = new Context (Surface);
#endif
Bounds = allocation;
ctx.Matrix = info.Fill (allocation);
Pattern p = new SurfacePattern (info.Surface);
ctx.Source = p;
ctx.Paint ();
((IDisposable)ctx).Dispose ();
p.Destroy ();
}
public ImageInfo(ImageInfo info, Widget w, Gdk.Rectangle bounds)
{
Cairo.Surface similar = CairoUtils.CreateSurface (w.GdkWindow);
Bounds = bounds;
Surface = similar.CreateSimilar (Content.ColorAlpha, Bounds.Width, Bounds.Height);
Context ctx = new Context (Surface);
ctx.Matrix = info.Fill (Bounds);
Pattern p = new SurfacePattern (info.Surface);
ctx.Source = p;
ctx.Paint ();
((IDisposable)ctx).Dispose ();
p.Destroy ();
}
public bool OnExpose(Context ctx, Gdk.Rectangle allocation)
{
ctx.Operator = Operator.Source;
SurfacePattern p = new SurfacePattern (info.Surface);
p.Filter = Filter.Fast;
Matrix m = info.Fill (allocation, angle);
ctx.Matrix = m;
ctx.Source = p;
ctx.Paint ();
p.Destroy ();
return true;
}
private Pixbuf ProcessImpl (Pixbuf input, Cms.Profile input_profile, bool fast) {
Pixbuf result;
using (ImageInfo info = new ImageInfo (input)) {
MemorySurface surface = new MemorySurface (Format.Argb32,
input.Width,
input.Height);
Context ctx = new Context (surface);
ctx.Matrix = info.Fill (info.Bounds, angle);
SurfacePattern p = new SurfacePattern (info.Surface);
if (fast) {
p.Filter = Filter.Fast;
}
ctx.Source = p;
ctx.Paint ();
((IDisposable)ctx).Dispose ();
p.Destroy ();
result = MemorySurface.CreatePixbuf (surface);
surface.Flush ();
}
return result;
}
static void draw (Cairo.Context gr, int width, int height)
{
int w, h;
ImageSurface image;
Matrix matrix;
SurfacePattern pattern;
gr.Scale (width, height);
gr.LineWidth = 0.04;
image = new ImageSurface ("data/e.png");
w = image.Width;
h = image.Height;
pattern = new SurfacePattern (image);
pattern.Extend = Cairo.Extend.Repeat;
gr.Translate (0.5, 0.5);
gr.Rotate (M_PI / 4);
gr.Scale (1 / Math.Sqrt (2), 1 / Math.Sqrt (2));
gr.Translate (- 0.5, - 0.5);
matrix = new Matrix ();
matrix.InitScale (w * 5.0, h * 5.0);
pattern.Matrix = matrix;
gr.Pattern = pattern;
gr.Rectangle ( new PointD (0, 0),
1.0, 1.0);
gr.Fill ();
pattern.Destroy ();
image.Destroy();
}
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);
Pattern black = new SolidPattern (new Cairo.Color (0.0, 0.0, 0.0, opacity));
//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;
}
public bool OnExpose(Context ctx, Gdk.Rectangle allocation)
{
ctx.Operator = Operator.Source;
ctx.Matrix = end_buffer.Fill (allocation);
SurfacePattern sur = new SurfacePattern (end_buffer.Surface);
ctx.Source = sur;
ctx.Paint ();
sur.Destroy ();
ctx.Operator = Operator.Over;
SurfacePattern p = new SurfacePattern (begin_buffer.Surface);
Matrix m = begin_buffer.Fill (allocation);
m.Translate (Math.Round (- allocation.Width * fraction), 0);
ctx.Matrix = m;
p.Filter = Filter.Fast;
ctx.Source = p;
ctx.Paint ();
p.Destroy ();
return fraction < 1.0;
}
public void imagepattern(Context cr, int width, int height)
{
Normalize (cr, width, height);
ImageSurface image = new ImageSurface ("data/romedalen.png");
int w = image.Width;
int h = image.Height;
SurfacePattern pattern = new SurfacePattern (image);
pattern.Extend = Extend.Repeat;
cr.Translate (0.5, 0.5);
cr.Rotate (Math.PI / 4);
cr.Scale (1 / Math.Sqrt (2), 1 / Math.Sqrt (2));
cr.Translate (- 0.5, - 0.5);
Matrix matrix = new Matrix ();
matrix.InitScale (w * 5.0, h * 5.0);
pattern.Matrix = matrix;
cr.Source = pattern;
cr.Rectangle (0, 0, 1.0, 1.0);
cr.Fill ();
pattern.Destroy ();
image.Destroy ();
}
private void OnExpose(Context ctx, Region region)
{
SetClip (ctx, region);
if (Transition != null) {
bool done = false;
foreach (Gdk.Rectangle area in GetRectangles (region)) {
BlockProcessor proc = new BlockProcessor (area, block_size);
Gdk.Rectangle subarea;
while (proc.Step (out subarea)) {
ctx.Save ();
SetClip (ctx, subarea);
done = ! Transition.OnExpose (ctx, Allocation);
ctx.Restore ();
}
}
if (done) {
System.Console.WriteLine ("frames = {0}", Transition.Frames);
Transition = null;
}
} else {
ctx.Operator = Operator.Source;
SurfacePattern p = new SurfacePattern (current.Surface);
p.Filter = Filter.Fast;
SetClip (ctx, region);
ctx.Matrix = current.Fill (Allocation);
ctx.Source = p;
ctx.Paint ();
p.Destroy ();
}
}
protected override bool OnExposeEvent(EventExpose args)
{
bool double_buffer = false;
base.OnExposeEvent (args);
Context ctx = Gdk.CairoHelper.Create (GdkWindow);
if (double_buffer) {
ImageSurface cim = new ImageSurface (Format.RGB24,
Allocation.Width,
Allocation.Height);
Context buffer = new Context (cim);
OnExpose (buffer, args.Region);
SurfacePattern sur = new SurfacePattern (cim);
sur.Filter = Filter.Fast;
ctx.Source = sur;
SetClip (ctx, args.Region);
ctx.Paint ();
((IDisposable)buffer).Dispose ();
((IDisposable)cim).Dispose ();
sur.Destroy ();
} else {
OnExpose (ctx, args.Region);
}
((IDisposable)ctx).Dispose ();
return true;
}
public bool OnExpose(Context ctx, Gdk.Rectangle allocation)
{
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);
sur.Filter = Filter.Fast;
ctx.Source = sur;
Pattern mask = CreateMask (allocation, fraction);
ctx.Mask (mask);
mask.Destroy ();
p.Destroy ();
sur.Destroy ();
return fraction < 1.0;
}
private ImageInfo CreateBlur(ImageInfo source)
{
double scale = Math.Max (256 / (double) source.Bounds.Width,
256 / (double) source.Bounds.Height);
Gdk.Rectangle small = new Gdk.Rectangle (0, 0,
(int) Math.Ceiling (source.Bounds.Width * scale),
(int) Math.Ceiling (source.Bounds.Height * scale));
ImageSurface image = new ImageSurface (Format.Argb32,
small.Width,
small.Height);
Context ctx = new Context (image);
ctx.Matrix = source.Fit (small);
ctx.Operator = Operator.Source;
Pattern p = new SurfacePattern (source.Surface);
ctx.Source = p;
ctx.Paint ();
p.Destroy ();
((IDisposable)ctx).Dispose ();
Gdk.Pixbuf normal = image.ToPixbuf();
Gdk.Pixbuf blur = PixbufUtils.Blur (normal, 3, null);
ImageInfo overlay = new ImageInfo (blur);
blur.Dispose ();
normal.Dispose ();
image.Destroy ();
return overlay;
}
public void Apply(Context ctx, Gdk.Rectangle allocation)
{
SurfacePattern p = new SurfacePattern (info.Surface);
ctx.Matrix = new Matrix ();
Matrix m = info.Fit (allocation);
ctx.Operator = Operator.Over;
ctx.Matrix = m;
ctx.Source = p;
ctx.Paint ();
SurfacePattern overlay = new SurfacePattern (blur.Surface);
ctx.Matrix = new Matrix ();
ctx.Matrix = blur.Fit (allocation);
ctx.Operator = Operator.Over;
ctx.Source = overlay;
// FIXME ouch this is ugly.
if (mask == null)
Radius = Radius;
//ctx.Paint ();
ctx.Mask (mask);
overlay.Destroy ();
p.Destroy ();
}
public bool OnExpose(Context ctx, Gdk.Rectangle viewport)
{
double percent = Math.Min ((DateTime.UtcNow - start).Ticks / (double) duration.Ticks, 1.0);
//Matrix m = info.Fill (allocation);
Matrix m = new Matrix ();
m.Translate (pan_x, pan_y);
m.Scale (zoom, zoom);
ctx.Matrix = m;
SurfacePattern p = new SurfacePattern (info.Surface);
ctx.Source = p;
ctx.Paint ();
p.Destroy ();
return percent < 1.0;
}
public bool OnExpose(Context ctx, Gdk.Rectangle viewport)
{
double percent = Math.Min ((DateTime.UtcNow - start).Ticks / (double) duration.Ticks, 1.0);
frames ++;
//ctx.Matrix = m;
SurfacePattern p = new SurfacePattern (buffer.Surface);
p.Filter = Filter.Fast;
Matrix m = new Matrix ();
m.Translate (pan_x * zoom, pan_y * zoom);
m.Scale (zoom, zoom);
zoom *= .98;
p.Matrix = m;
ctx.Source = p;
ctx.Paint ();
p.Destroy ();
return percent < 1.0;
}
public ImageInfo(ImageInfo info, Gdk.Rectangle allocation)
{
Surface = info.Surface.CreateSimilar (Content.Color,
allocation.Width,
allocation.Height);
Context ctx = new Context (Surface);
Bounds = allocation;
ctx.Matrix = info.Fill (allocation);
Pattern p = new SurfacePattern (info.Surface);
ctx.Source = p;
ctx.Paint ();
((IDisposable)ctx).Dispose ();
p.Destroy ();
}