protected void DrawBackground(Cairo.Context cr)
{
var totalRect = GetTotalBounds();
cr.SetSourceColor(BackgroundColor);
cr.Rectangle(totalRect.X, totalRect.Y, totalRect.Width, totalRect.Height);
cr.Fill();
cr.Save();
cr.Translate(XOffset, YOffset);
cr.Scale(Scale, Scale);
if (Surface != null)
{
cr.SetSource(Surface, 0, 0);
using (SurfacePattern pattern = (SurfacePattern)cr.GetSource()) {
pattern.Filter = Filter.Nearest;
}
cr.Paint();
}
else if (Image != null)
{
using (Surface source = new BitmapSurface(Image)) {
cr.SetSource(source, 0, 0);
using (SurfacePattern pattern = (SurfacePattern)cr.GetSource()) {
pattern.Filter = Filter.Nearest;
}
cr.Paint();
}
}
else
{
Cairo.Rectangle extents = cr.ClipExtents();
for (int i = 0; i < Width * Height; i++)
{
int tileX = i % Width;
int tileY = i / Width;
Cairo.Rectangle rect = GetTileRectWithPadding(tileX, tileY, scale: false, offset: false);
if (!CairoHelper.RectsOverlap(extents, rect))
{
continue;
}
cr.Save();
cr.Translate(rect.X + TilePaddingX, rect.Y + TilePaddingY);
cr.Rectangle(0, 0, TileWidth, TileHeight);
cr.Clip();
TileDrawer(i, cr);
cr.Restore();
}
}
cr.Restore(); // Undo scale, offset
}
public void Draw(Cairo.Context cr, Cairo.Rectangle rectangle)
{
if (IsSeparator)
{
cr.NewPath();
double x = Math.Ceiling(rectangle.X + rectangle.Width / 2) + 0.5;
cr.MoveTo(x, rectangle.Y + 0.5 + 2);
cr.RelLineTo(0, rectangle.Height - 1 - 4);
cr.ClosePath();
cr.SetSourceColor(parent.Style.Dark(StateType.Normal).ToCairoColor());
cr.LineWidth = 1;
cr.Stroke();
return;
}
if (Active || HoverPosition.X >= 0)
{
if (Active)
{
cr.Rectangle(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
using (var gr = new LinearGradient(rectangle.X, rectangle.Y, rectangle.X, rectangle.Y + rectangle.Height)) {
gr.AddColorStop(0, Tabstrip.ActiveGradientStart);
gr.AddColorStop(1, Tabstrip.ActiveGradientEnd);
cr.SetSource(gr);
}
cr.Fill();
cr.Rectangle(rectangle.X + 0.5, rectangle.Y + 0.5, rectangle.Width - 1, rectangle.Height - 1);
cr.SetSourceRGBA(1, 1, 1, 0.05);
cr.LineWidth = 1;
cr.Stroke();
}
else if (HoverPosition.X >= 0)
{
cr.Rectangle(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
using (var gr = new LinearGradient(rectangle.X, rectangle.Y, rectangle.X, rectangle.Y + rectangle.Height)) {
var c1 = Tabstrip.ActiveGradientStart;
var c2 = Tabstrip.ActiveGradientEnd;
c1.A = 0.2;
c2.A = 0.2;
gr.AddColorStop(0, c1);
gr.AddColorStop(1, c2);
cr.SetSource(gr);
}
cr.Fill();
}
}
if (Active)
{
cr.SetSourceRGB(1, 1, 1);
}
else
{
cr.SetSourceColor(parent.Style.Text(StateType.Normal).ToCairoColor());
}
cr.MoveTo(rectangle.X + (rectangle.Width - w) / 2, (rectangle.Height - h) / 2);
Pango.CairoHelper.ShowLayout(cr, layout);
}
protected virtual void DrawBackground(Cairo.Context context, Gdk.Rectangle region)
{
LayoutRoundedRectangle(context, region);
context.ClipPreserve();
using (LinearGradient lg = new LinearGradient(region.X, region.Y, region.X, region.Y + region.Height)) {
lg.AddColorStop(0, Styles.StatusBarFill1Color);
lg.AddColorStop(1, Styles.StatusBarFill4Color);
context.SetSource(lg);
context.FillPreserve();
}
context.Save();
double midX = region.X + region.Width / 2.0;
double midY = region.Y + region.Height;
context.Translate(midX, midY);
using (RadialGradient rg = new RadialGradient(0, 0, 0, 0, 0, region.Height * 1.2)) {
rg.AddColorStop(0, Styles.StatusBarFill1Color);
rg.AddColorStop(1, Styles.WithAlpha(Styles.StatusBarFill1Color, 0));
context.Scale(region.Width / (double)region.Height, 1.0);
context.SetSource(rg);
context.Fill();
}
context.Restore();
using (LinearGradient lg = new LinearGradient(0, region.Y, 0, region.Y + region.Height)) {
lg.AddColorStop(0, Styles.StatusBarShadowColor1);
lg.AddColorStop(1, Styles.WithAlpha(Styles.StatusBarShadowColor1, Styles.StatusBarShadowColor1.A * 0.2));
LayoutRoundedRectangle(context, region, 0, -1);
context.LineWidth = 1;
context.SetSource(lg);
context.Stroke();
}
using (LinearGradient lg = new LinearGradient(0, region.Y, 0, region.Y + region.Height)) {
lg.AddColorStop(0, Styles.StatusBarShadowColor2);
lg.AddColorStop(1, Styles.WithAlpha(Styles.StatusBarShadowColor2, Styles.StatusBarShadowColor2.A * 0.2));
LayoutRoundedRectangle(context, region, 0, -2);
context.LineWidth = 1;
context.SetSource(lg);
context.Stroke();
}
context.ResetClip();
}
void RenderButton(Cairo.Context context, Gdk.Point corner, double opacity, bool hovered)
{
Gdk.Rectangle region = new Gdk.Rectangle(corner.X,
corner.Y,
ButtonSize.Width, ButtonSize.Height);
context.RoundedRectangle(region.X + 0.5, region.Y + 0.5, region.Width - 1, region.Height - 1, 3);
using (var lg = new LinearGradient(0, region.Top, 0, region.Bottom)) {
if (hovered)
{
lg.AddColorStop(0, new Cairo.Color(.15, .76, .09, opacity));
lg.AddColorStop(1, new Cairo.Color(.41, .91, .46, opacity));
}
else
{
lg.AddColorStop(0, new Cairo.Color(.41, .91, .46, opacity));
lg.AddColorStop(1, new Cairo.Color(.15, .76, .09, opacity));
}
context.SetSource(lg);
context.FillPreserve();
}
context.SetSourceRGBA(.29, .79, .28, opacity);
context.LineWidth = 1;
context.Stroke();
region.Inflate(-1, -1);
context.RoundedRectangle(region.X + 0.5, region.Y + 0.5, region.Width - 1, region.Height - 1, 2);
using (var lg = new LinearGradient(0, region.Top, 0, region.Bottom)) {
lg.AddColorStop(0, new Cairo.Color(1, 1, 1, .74 * opacity));
lg.AddColorStop(0.1, new Cairo.Color(1, 1, 1, 0));
lg.AddColorStop(0.9, new Cairo.Color(0, 0, 0, 0));
lg.AddColorStop(1, new Cairo.Color(0, 0, 0, .34 * opacity));
context.SetSource(lg);
context.Stroke();
}
using (var layout = ButtonLayout(PangoContext)) {
int w, h;
layout.GetPixelSize(out w, out h);
RenderShadowedText(context, new Gdk.Point(corner.X + ButtonSize.Width / 2 - w / 2, corner.Y + ButtonSize.Height / 2 - h / 2 - 1), opacity, layout);
}
}
//private double last_invalidate_value = -1;
/*private void Invalidate ()
* {
* double current_value = (IsValueUpdatePending ? PendingValue : Value);
*
* // FIXME: Something is wrong with the updating below causing an
* // invalid region when IsValueUpdatePending is true, so when
* // that is the case for now, we trigger a full invalidation
* if (last_invalidate_value < 0 || IsValueUpdatePending) {
* last_invalidate_value = current_value;
* InvalidateRender ();
* return;
* }
*
* double max = Math.Max (last_invalidate_value, current_value) * RenderSize.Width;
* double min = Math.Min (last_invalidate_value, current_value) * RenderSize.Width;
*
* Rect region = new Rect (
* InvalidationRect.X + min,
* InvalidationRect.Y,
* (max - min) + 2 * ThrobberSize,
* InvalidationRect.Height
* );
*
* last_invalidate_value = current_value;
* InvalidateRender (region);
* }*/
/*protected override Rect InvalidationRect {
* get { return new Rect (
* -Margin.Left - ThrobberSize / 2,
* -Margin.Top,
* Allocation.Width + ThrobberSize,
* Allocation.Height);
* }
* }*/
protected override void ClippedRender(Cairo.Context cr)
{
double throbber_r = ThrobberSize / 2.0;
double throbber_x = Math.Round(RenderSize.Width * (IsValueUpdatePending ? PendingValue : Value));
double throbber_y = (Allocation.Height - ThrobberSize) / 2.0 - Margin.Top + throbber_r;
double bar_w = RenderSize.Width * Value;
Theme.Widget.StyleContext.Save();
Theme.Widget.StyleContext.AddClass("entry");
Theme.Widget.StyleContext.RenderBackground(cr, 0, 0, RenderSize.Width, RenderSize.Height);
var color = CairoExtensions.GdkRGBAToCairoColor(Theme.Widget.StyleContext.GetColor(Gtk.StateFlags.Active));
Theme.Widget.StyleContext.Restore();
// TODO get Dark color
Color fill_color = CairoExtensions.ColorShade(color, 0.4);
Color light_fill_color = CairoExtensions.ColorShade(color, 0.3);
fill_color.A = 1.0;
light_fill_color.A = 1.0;
using (var fill = new LinearGradient(0, 0, 0, RenderSize.Height)) {
fill.AddColorStop(0, light_fill_color);
fill.AddColorStop(0.5, fill_color);
fill.AddColorStop(1, light_fill_color);
cr.Rectangle(0, 0, bar_w, RenderSize.Height);
cr.SetSource(fill);
cr.Fill();
cr.SetSourceColor(fill_color);
cr.Arc(throbber_x, throbber_y, throbber_r, 0, Math.PI * 2);
cr.Fill();
}
}
/// <summary>
/// Rotates layer by the specified angle (in degrees).
/// </summary>
/// <param name='angle'>
/// Angle (in degrees).
/// </param>
public void Rotate(double angle)
{
int w = PintaCore.Workspace.ImageSize.Width;
int h = PintaCore.Workspace.ImageSize.Height;
double radians = (angle / 180d) * Math.PI;
double cos = Math.Cos(radians);
double sin = Math.Sin(radians);
var newSize = RotateDimensions(PintaCore.Workspace.ImageSize, angle);
Layer dest = PintaCore.Layers.CreateLayer(string.Empty, newSize.Width, newSize.Height);
using (Cairo.Context g = new Cairo.Context(dest.Surface)) {
g.Matrix = new Matrix(cos, sin, -sin, cos, newSize.Width / 2.0, newSize.Height / 2.0);
g.Translate(-w / 2.0, -h / 2.0);
g.SetSource(Surface);
g.Paint();
}
Surface old = Surface;
Surface = dest.Surface;
(old as IDisposable).Dispose();
}
public void Render(DrawingArea area, SettingsModel settings)
{
var width = area.Allocation.Width;
var height = area.Allocation.Height;
var kaleidoscope = _factory.Get (settings.Type);
var rootNode = kaleidoscope.Generate (
settings.GeometyWidth,
settings.ImageUri,
width, height);
ImageSurface surface = new ImageSurface(Format.Argb32, width, height);
using (var context = new Context (surface)) {
context.Translate(width / 2, height / 2);
rootNode.Render (context);
}
rootNode.Geometry.Dispose ();
using (Context context = Gdk.CairoHelper.Create (area.GdkWindow)) {
context.Rectangle(0, 0, width, height);
context.SetSource(surface);
context.Fill();
context.GetTarget ().Dispose ();
}
surface.Dispose ();
}
void HandleWindowExposeEvent(object o, ExposeEventArgs args)
{
using (Cairo.Context cr = Gdk.CairoHelper.Create(args.Event.Window)) {
cr.Operator = Operator.Source;
if (currentSurface == null || currentSurface.Internal == null)
{
cr.Color = new Cairo.Color(1, 1, 1, 0);
}
else
{
if (background_buffer == null)
{
background_buffer = new DockySurface(currentSurface.Width, currentSurface.Height, cr.Target);
DrawBackground(background_buffer);
}
background_buffer.Internal.Show(cr, 0, 0);
cr.Operator = Operator.Over;
cr.SetSource(currentSurface.Internal);
}
cr.Paint();
(cr.Target as IDisposable).Dispose();
}
}
public override void DrawFrameBorder(Cairo.Context cr, Gdk.Rectangle alloc)
{
cr.LineWidth = BorderWidth;
border_color.A = 0.3;
cr.SetSourceColor(border_color);
double offset = (double)BorderWidth / 2.0;
double w = Math.Max(0, alloc.Width * 0.75);
double x = alloc.X + (alloc.Width - w) * 0.5 + offset;
double y = alloc.Y + alloc.Height + offset;
LinearGradient g = new LinearGradient(x, y, x + w, y);
Color transparent = border_color;
transparent.A = 0.0;
g.AddColorStop(0, transparent);
g.AddColorStop(0.4, border_color);
g.AddColorStop(0.6, border_color);
g.AddColorStop(1, transparent);
cr.SetSource(g);
cr.MoveTo(x, y);
cr.LineTo(x + w, y);
cr.Stroke();
g.Dispose();
}
public void DrawRowSelection(Cairo.Context cr, int x, int y, int width, int height,
bool filled, bool stroked, Cairo.Color color, CairoCorners corners)
{
color.A *= 0.85;
Cairo.Color selection_color = color;
Cairo.Color selection_stroke = CairoExtensions.ColorShade(selection_color, 0.85);
selection_stroke.A = color.A;
if (filled)
{
Cairo.Color selection_fill_light = CairoExtensions.ColorShade(selection_color, 1.05);
Cairo.Color selection_fill_dark = selection_color;
selection_fill_light.A = color.A;
selection_fill_dark.A = color.A;
LinearGradient grad = new LinearGradient(x, y, x, y + height);
grad.AddColorStop(0, selection_fill_dark);
grad.AddColorStop(1, selection_fill_light);
cr.SetSource(grad);
cr.Rectangle(x, y, width, height);
cr.Fill();
grad.Dispose();
}
if (stroked && !filled)
{
cr.LineWidth = 1.0;
cr.SetSourceColor(selection_stroke);
cr.Rectangle(x + 0.5, y + 0.5, width - 1, height - 1);
cr.Stroke();
}
}
protected override void OnFillRegionComputed(Point[][] polygonSet)
{
SimpleHistoryItem hist = new SimpleHistoryItem (Icon, Name);
hist.TakeSnapshotOfLayer (PintaCore.Layers.CurrentLayer);
PintaCore.Layers.ToolLayer.Clear ();
ImageSurface surface = PintaCore.Layers.ToolLayer.Surface;
for (int x = 0; x < stencil.Width; x++)
for (int y = 0; y < stencil.Height; y++)
if (stencil.GetUnchecked (x, y))
surface.SetPixel (x, y, fill_color);
using (Context g = new Context (PintaCore.Layers.CurrentLayer.Surface)) {
g.AppendPath (PintaCore.Layers.SelectionPath);
g.FillRule = FillRule.EvenOdd;
g.Clip ();
g.Antialias = Antialias.Subpixel;
g.SetSource (surface);
g.Paint ();
}
PintaCore.History.PushNewItem (hist);
PintaCore.Workspace.Invalidate ();
}
public override void Apply(Cairo.Context cr)
{
if (surface != null)
{
cr.SetSource(surface);
}
}
public void DrawRowSelection(Cairo.Context cr, int x, int y, int width, int height,
bool filled, bool stroked, Cairo.Color color, CairoCorners corners, bool flat_fill)
{
var selection_color = color;
var selection_highlight = CairoExtensions.ColorShade(selection_color, 1.24);
var selection_stroke = CairoExtensions.ColorShade(selection_color, 0.85);
selection_highlight.A = 0.5;
selection_stroke.A = color.A;
LinearGradient grad = null;
if (filled)
{
if (flat_fill)
{
cr.SetSourceColor(selection_color);
}
else
{
var selection_fill_light = CairoExtensions.ColorShade(selection_color, 1.12);
var selection_fill_dark = selection_color;
selection_fill_light.A = color.A;
selection_fill_dark.A = color.A;
grad = new LinearGradient(x, y, x, y + height);
grad.AddColorStop(0, selection_fill_light);
grad.AddColorStop(0.4, selection_fill_dark);
grad.AddColorStop(1, selection_fill_light);
cr.SetSource(grad);
}
CairoExtensions.RoundedRectangle(cr, x, y, width, height, Context.Radius, corners, true);
cr.Fill();
if (grad != null)
{
grad.Dispose();
}
}
if (filled && stroked)
{
cr.LineWidth = 1.0;
cr.SetSourceColor(selection_highlight);
CairoExtensions.RoundedRectangle(cr, x + 1.5, y + 1.5, width - 3, height - 3,
Context.Radius - 1, corners, true);
cr.Stroke();
}
if (stroked)
{
cr.LineWidth = 1.0;
cr.SetSourceColor(selection_stroke);
CairoExtensions.RoundedRectangle(cr, x + 0.5, y + 0.5, width - 1, height - 1,
Context.Radius, corners, true);
cr.Stroke();
}
}
public static void ShowAtEdge(this DockySurface self, DockySurface target, PointD point, DockPosition position)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
Cairo.Context cr = target.Context;
double x = point.X;
double y = point.Y;
switch (position)
{
case DockPosition.Top:
x -= self.Width / 2;
break;
case DockPosition.Left:
y -= self.Height / 2;
break;
case DockPosition.Right:
x -= self.Width;
y -= self.Height / 2;
break;
case DockPosition.Bottom:
x -= self.Width / 2;
y -= self.Height;
break;
}
cr.SetSource(self.Internal, (int)x, (int)y);
cr.Paint();
}
protected override bool OnDrawn(Cairo.Context cr)
{
base.OnDrawn(cr);
if (Surface != null)
{
cr.SetSourceSurface(Surface, XOffset, YOffset);
cr.Paint();
}
else if (Image != null)
{
Bitmap orig = Image;
using (Surface source = CairoHelper.LockBitmap(orig)) {
cr.Scale(Scale, Scale);
cr.SetSource(source, XOffset, YOffset);
((SurfacePattern)cr.Source).Filter = Filter.Nearest;
cr.Scale(1.0 / Scale, 1.0 / Scale);
cr.Paint();
CairoHelper.UnlockBitmap(orig);
}
}
if (hoveringIndex != -1)
{
cr.NewPath();
cr.SetSourceColor(HoverColor);
cr.Rectangle(new Cairo.Rectangle(XOffset + HoveringX * TileWidth * Scale + 0.5, YOffset + HoveringY * TileHeight * Scale + 0.5, ScaledTileWidth - 1, ScaledTileHeight - 1));
cr.LineWidth = 1;
cr.LineJoin = LineJoin.Bevel;
cr.Stroke();
}
return(true);
}
//private double last_invalidate_value = -1;
/*private void Invalidate ()
* {
* double current_value = (IsValueUpdatePending ? PendingValue : Value);
*
* // FIXME: Something is wrong with the updating below causing an
* // invalid region when IsValueUpdatePending is true, so when
* // that is the case for now, we trigger a full invalidation
* if (last_invalidate_value < 0 || IsValueUpdatePending) {
* last_invalidate_value = current_value;
* InvalidateRender ();
* return;
* }
*
* double max = Math.Max (last_invalidate_value, current_value) * RenderSize.Width;
* double min = Math.Min (last_invalidate_value, current_value) * RenderSize.Width;
*
* Rect region = new Rect (
* InvalidationRect.X + min,
* InvalidationRect.Y,
* (max - min) + 2 * ThrobberSize,
* InvalidationRect.Height
* );
*
* last_invalidate_value = current_value;
* InvalidateRender (region);
* }*/
/*protected override Rect InvalidationRect {
* get { return new Rect (
* -Margin.Left - ThrobberSize / 2,
* -Margin.Top,
* Allocation.Width + ThrobberSize,
* Allocation.Height);
* }
* }*/
protected override void ClippedRender(Cairo.Context cr)
{
double throbber_r = ThrobberSize / 2.0;
double throbber_x = Math.Round(RenderSize.Width * (IsValueUpdatePending ? PendingValue : Value));
double throbber_y = (Allocation.Height - ThrobberSize) / 2.0 - Margin.Top + throbber_r;
double bar_w = RenderSize.Width * Value;
cr.SetSourceColor(Theme.Colors.GetWidgetColor(GtkColorClass.Base, Gtk.StateType.Normal));
cr.Rectangle(0, 0, RenderSize.Width, RenderSize.Height);
cr.Fill();
Color color = Theme.Colors.GetWidgetColor(GtkColorClass.Dark, Gtk.StateType.Active);
Color fill_color = CairoExtensions.ColorShade(color, 0.4);
Color light_fill_color = CairoExtensions.ColorShade(color, 0.3);
fill_color.A = 1.0;
light_fill_color.A = 1.0;
LinearGradient fill = new LinearGradient(0, 0, 0, RenderSize.Height);
fill.AddColorStop(0, light_fill_color);
fill.AddColorStop(0.5, fill_color);
fill.AddColorStop(1, light_fill_color);
cr.Rectangle(0, 0, bar_w, RenderSize.Height);
cr.SetSource(fill);
cr.Fill();
cr.SetSourceColor(fill_color);
cr.Arc(throbber_x, throbber_y, throbber_r, 0, Math.PI * 2);
cr.Fill();
}
public static void ShowWithOptions(this DockySurface self, DockySurface target, PointD point, double zoom, double rotation, double opacity)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
Cairo.Context cr = target.Context;
double cos, sin;
cos = Math.Cos(rotation);
sin = Math.Sin(rotation);
Matrix m = new Matrix(cos, sin, -sin, cos, point.X, point.Y);
cr.Transform(m);
if (zoom != 1)
{
cr.Scale(zoom, zoom);
}
cr.SetSource(self.Internal,
-self.Width / 2,
-self.Height / 2);
cr.PaintWithAlpha(opacity);
cr.IdentityMatrix();
}
void RenderBackground(Cairo.Context context, Gdk.Rectangle region)
{
region.Inflate(-Padding, -Padding);
context.RenderOuterShadow(new Gdk.Rectangle(region.X + 10, region.Y + 15, region.Width - 20, region.Height - 15), Padding, 3, .25);
context.RoundedRectangle(region.X + 0.5, region.Y + 0.5, region.Width - 1, region.Height - 1, 5);
using (var lg = new LinearGradient(0, region.Y, 0, region.Bottom)) {
lg.AddColorStop(0, new Cairo.Color(.36, .53, .73));
lg.AddColorStop(1, new Cairo.Color(.21, .37, .54));
context.SetSource(lg);
context.FillPreserve();
}
context.Save();
context.Translate(IconPosition.X, IconPosition.Y);
context.Scale(0.75, 0.75);
Gdk.CairoHelper.SetSourcePixbuf(context, starburst, -starburst.Width / 2, -starburst.Height / 2);
context.FillPreserve();
context.Restore();
context.LineWidth = 1;
context.SetSourceRGB(.29, .47, .67);
context.Stroke();
}
// Flatten image
public void FlattenImage()
{
if (Layers.Count < 2)
{
throw new InvalidOperationException("Cannot flatten image because there is only one layer.");
}
Layer dest = Layers[0];
using (Cairo.Context g = new Cairo.Context(dest.Surface)) {
for (int i = 1; i < Layers.Count; i++)
{
Layer source = Layers[i];
g.SetSource(source.Surface);
g.PaintWithAlpha(source.Opacity);
}
}
current_layer = 0;
while (Layers.Count > 1)
{
Layer l = Layers[1];
Layers.RemoveAt(1);
}
PintaCore.Layers.OnLayerRemoved();
Workspace.Invalidate();
}
protected override void RenderCoverArt(Cairo.Context cr, ImageSurface image)
{
if (image == null)
{
return;
}
Gdk.Rectangle alloc = RenderAllocation;
int asr = ArtworkSizeRequest;
int reflect = (int)(image.Height * 0.2);
int surface_w = image.Width;
int surface_h = image.Height + reflect;
int x = alloc.X + alloc.Width - asr;
int y = alloc.Y;
Surface scene = null;
if (!surfaces.TryGetValue(image, out scene))
{
scene = CreateScene(cr, image, reflect);
surfaces.Add(image, scene);
}
cr.Rectangle(x, y, asr, alloc.Height);
cr.Color = BackgroundColor;
cr.Fill();
x += (asr - surface_w) / 2;
y += surface_h > asr ? 0 : (asr - surface_h) / 2;
cr.SetSource(scene, x, y);
cr.Paint();
}
public static void ShowAsReflection(this DockySurface self, DockySurface target, PointD point, double zoom,
double rotation, double opacity, double height, DockPosition position)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
Cairo.Context cr = target.Context;
switch (position)
{
case DockPosition.Left:
point.X -= self.Width * zoom + height;
break;
case DockPosition.Top:
point.Y -= self.Height * zoom + height;
break;
case DockPosition.Right:
point.X += self.Width * zoom + height;
break;
case DockPosition.Bottom:
point.Y += self.Height * zoom + height;
break;
}
double cos, sin;
cos = Math.Cos(rotation);
sin = Math.Sin(rotation);
Matrix m = new Matrix(cos, sin, -sin, cos, point.X, point.Y);
cr.Transform(m);
if (zoom != 1)
{
cr.Scale(zoom, zoom);
}
if (position == DockPosition.Left || position == DockPosition.Right)
{
cr.Scale(-1, 1);
}
else
{
cr.Scale(1, -1);
}
cr.SetSource(self.Internal,
-self.Width / 2,
-self.Height / 2);
cr.PaintWithAlpha(opacity * .3);
cr.IdentityMatrix();
}
protected override void OnStartTransform()
{
base.OnStartTransform();
Document doc = PintaCore.Workspace.ActiveDocument;
// If there is no selection, select the whole image.
if (doc.Selection.SelectionPolygons.Count == 0)
{
doc.Selection.CreateRectangleSelection(
new Cairo.Rectangle(0, 0, doc.ImageSize.Width, doc.ImageSize.Height));
}
original_selection = doc.Selection.Clone();
original_transform.InitMatrix(doc.SelectionLayer.Transform);
hist = new MovePixelsHistoryItem(Icon, Name, doc);
hist.TakeSnapshot(!doc.ShowSelectionLayer);
if (!doc.ShowSelectionLayer)
{
// Copy the selection to the temp layer
doc.CreateSelectionLayer();
doc.ShowSelectionLayer = true;
//Use same BlendMode, Opacity and Visibility for SelectionLayer
doc.SelectionLayer.BlendMode = doc.CurrentUserLayer.BlendMode;
doc.SelectionLayer.Opacity = doc.CurrentUserLayer.Opacity;
doc.SelectionLayer.Hidden = doc.CurrentUserLayer.Hidden;
using (Cairo.Context g = new Cairo.Context(doc.SelectionLayer.Surface)) {
g.AppendPath(doc.Selection.SelectionPath);
g.FillRule = FillRule.EvenOdd;
g.SetSource(doc.CurrentUserLayer.Surface);
g.Clip();
g.Paint();
}
Cairo.ImageSurface surf = doc.CurrentUserLayer.Surface;
using (Cairo.Context g = new Cairo.Context(surf)) {
g.AppendPath(doc.Selection.SelectionPath);
g.FillRule = FillRule.EvenOdd;
if (is_alt_pressed)
{
g.Operator = Cairo.Operator.Clear;
}
else
{
g.Operator = Operator.Source;
g.SetSourceColor(PintaCore.Palette.SecondaryColor);
}
g.Fill();
}
}
PintaCore.Workspace.Invalidate();
}
public static void RenderThumbnail(Cairo.Context cr, ImageSurface image, bool dispose,
double x, double y, double width, double height, bool drawBorder, double radius,
bool fill, Color fillColor, CairoCorners corners)
{
if (image == null || image.Handle == IntPtr.Zero)
{
return;
}
double p_x = x;
double p_y = y;
p_x += image.Width < width ? (width - image.Width) / 2 : 0;
p_y += image.Height < height ? (height - image.Height) / 2 : 0;
cr.Antialias = Cairo.Antialias.Default;
if (fill)
{
cr.Rectangle(x, y, width, height);
cr.Color = fillColor;
cr.Fill();
}
CairoExtensions.RoundedRectangle(cr, p_x, p_y, image.Width, image.Height, radius, corners);
cr.SetSource(image, p_x, p_y);
cr.Fill();
if (!drawBorder)
{
if (dispose)
{
((IDisposable)image).Dispose();
}
return;
}
cr.LineWidth = 1.0;
if (radius < 1)
{
cr.Antialias = Antialias.None;
CairoExtensions.RoundedRectangle(cr, x + 1.5, y + 1.5, width - 3, height - 3, radius, corners);
cr.Color = cover_border_light_color;
cr.Stroke();
}
CairoExtensions.RoundedRectangle(cr, x + 0.5, y + 0.5, width - 1, height - 1, radius, corners);
cr.Color = cover_border_dark_color;
cr.Stroke();
if (dispose)
{
((IDisposable)image).Dispose();
}
}
public static Gtk.Image create_big_starred_image(string pic_path)
{
using (Cairo.ImageSurface img_surface = new ImageSurface(pic_path)) {
using (Cairo.ImageSurface surface = new Cairo.ImageSurface(Cairo.Format.ARGB32, img_surface.Width + 2, img_surface.Height + 2)) {
using (Cairo.Context context = new Context(surface)) {
Gdk.Pixbuf tmp_pixbuf = new Gdk.Pixbuf(pic_path);
if (!tmp_pixbuf.HasAlpha) { // img_surface.Format not available...
context.Rectangle(0, 0, img_surface.Width+2, img_surface.Height+2);
context.Fill();
context.Stroke();
}
context.SetSource(img_surface, 1, 1);
context.Paint();
// evil hack because the interface to cairo is pretty bad
Assembly asm = Assembly.GetCallingAssembly();
Stream s = asm.GetManifestResourceStream("big_star.png");
FileStream fs = new System.IO.FileStream(tmp_image_path, FileMode.Create);
for (int i = 0; i < s.Length; ++i)
fs.WriteByte((byte)s.ReadByte());
fs.Close();
using (Cairo.ImageSurface star_surface = new ImageSurface(tmp_image_path)) {
System.IO.File.Delete(tmp_image_path);
context.SetSource(star_surface, img_surface.Width-star_surface.Width, img_surface.Height-star_surface.Height);
context.Paint();
surface.WriteToPng(tmp_image_path);
Gtk.Image img = new Gtk.Image(tmp_image_path);
System.IO.File.Delete(tmp_image_path);
return img;
}
}
}
}
}
public static ImageSurface Clone(this ImageSurface surf)
{
ImageSurface newsurf = new ImageSurface (surf.Format, surf.Width, surf.Height);
using (Context g = new Context (newsurf)) {
g.SetSource (surf);
g.Paint ();
}
return newsurf;
}
public override void RealRenderCairo(Cairo.Context context)
{
if (Camera.IsRendererOutOfScreen(this))
{
return;
}
Vector2 screenPos = Camera.WorldToScreenPosition(gameObject.transform.position);
float realRad = gameObject.transform.LocalToWorldLength(radius);
double screenRad = (double)realRad * Camera.instance.zoom;
context.Arc((double)screenPos.x,
(double)screenPos.y,
screenRad,
0, 2 * Math.PI);
if (surf == null)
{
if (useShadow)
{
LinearGradient g = new LinearGradient(screenPos.x - screenRad, screenPos.y + screenRad, screenPos.x + screenRad, screenPos.y - screenRad);
//g.AddColorStopRgb (0.75, new Cairo.Color (ColorR, ColorG, ColorB, ColorA));
g.AddColorStop(0, new Cairo.Color(ColorR * 0.5, ColorG * 0.5, ColorB * 0.5, ColorA * 0.5));
g.AddColorStop(1, new Cairo.Color(ColorR, ColorG, ColorB, ColorA));
context.SetSource(g);
context.Fill();
g.Dispose();
}
else
{
context.SetSourceRGBA(ColorR, ColorG, ColorB, ColorA);
context.Fill();
}
}
else
{
context.SetSourceSurface(surf, (int)(screenPos.x - screenRad), (int)(screenPos.y - screenRad));
context.Fill();
context.GetSource().Dispose();
//surf.Dispose ();
}
/*context.SetSourceRGBA (1,1,1,1);
* context.Arc ((double)screenPos.x,
* (double)screenPos.y,
* (double)realRad * Camera.instance.zoom,
* MyMath.FixAngleRad(-Math.PI/4 - gameObject.transform.rotation), MyMath.FixAngleRad(Math.PI /4 - gameObject.transform.rotation));
*
* context.Fill ();*/
}
void DrawingAreaHandleExposeEvent(object o, ExposeEventArgs args)
{
// Paint the ImageSurface onto the DrawingArea
DrawingArea area = (DrawingArea)o;
using (Cairo.Context context = Gdk.CairoHelper.Create(area.GdkWindow)) {
if (s != null)
{
context.SetSource(s);
context.Paint();
}
}
}
public ImageSurface GetFlattenedImage()
{
Cairo.ImageSurface surf = new Cairo.ImageSurface(Cairo.Format.Argb32, ImageSize.Width, ImageSize.Height);
using (Cairo.Context g = new Cairo.Context(surf)) {
foreach (var layer in GetLayersToPaint())
{
g.SetSource(layer.Surface);
g.PaintWithAlpha(layer.Opacity);
}
}
return(surf);
}
public ImageSurface GetClippedLayer(int index)
{
Cairo.ImageSurface surf = new Cairo.ImageSurface(Cairo.Format.Argb32, ImageSize.Width, ImageSize.Height);
using (Cairo.Context g = new Cairo.Context(surf)) {
g.AppendPath(Selection.SelectionPath);
g.Clip();
g.SetSource(UserLayers[index].Surface);
g.Paint();
}
return(surf);
}
protected override void DrawBackground (Context context, Gdk.Rectangle region)
{
LayoutRoundedRectangle (context, region);
context.Clip ();
context.SetSourceColor (CairoExtensions.ParseColor ("D3E6FF"));
context.Paint ();
context.Save ();
context.Translate (region.X + region.Width / 2.0, region.Y + region.Height);
using (var rg = new RadialGradient (0, 0, 0, 0, 0, region.Height * 1.2)) {
var color = CairoExtensions.ParseColor ("E5F0FF");
rg.AddColorStop (0, color);
color.A = 0;
rg.AddColorStop (1, color);
context.Scale (region.Width / (double)region.Height, 1.0);
context.SetSource (rg);
context.Paint ();
}
context.Restore ();
LayoutRoundedRectangle (context, region, -3, -3, 2);
context.SetSourceRGBA (1, 1, 1, 0.4);
context.LineWidth = 1;
context.StrokePreserve ();
context.Clip ();
int boxSize = 11;
int x = region.Left + (region.Width % boxSize) / 2;
for (; x < region.Right; x += boxSize) {
context.MoveTo (x + 0.5, region.Top);
context.LineTo (x + 0.5, region.Bottom);
}
int y = region.Top + (region.Height % boxSize) / 2;
y += boxSize / 2;
for (; y < region.Bottom; y += boxSize) {
context.MoveTo (region.Left, y + 0.5);
context.LineTo (region.Right, y + 0.5);
}
context.SetSourceRGBA (1, 1, 1, 0.2);
context.Stroke ();
context.ResetClip ();
}
protected override bool OnDrawn(Cairo.Context cr)
{
if (this.isDirty)
{
this.Rebuild();
}
bool baseDrawnResult = base.OnDrawn(cr);
cr.SetFontSize(FONT_HEIGHT);
cr.SelectFontFace("Mono", FontSlant.Normal, FontWeight.Normal);
cr.Rectangle(0.0, 0.0, this.allocRect.Width, this.allocRect.Height);
cr.SetSourceRGB(1, 1, 1);
cr.Fill();
var gradient = new LinearGradient(0.0, 0.0, 0.0, this.allocRect.Height);
gradient.AddColorStopRgb(0.0, new Color(0.4, 0.4, 0.4));
gradient.AddColorStopRgb(0.1, new Color(1.0, 1.0, 1.0));
gradient.AddColorStopRgb(0.2, new Color(0.6, 0.6, 0.6));
gradient.AddColorStopRgb(1.0, new Color(0.1, 0.1, 0.1));
cr.LineWidth = 1;
foreach (var box in this.boxen)
{
this.RoundedRect(cr, box.Rect, 4.0);
cr.SetSource(gradient);
cr.FillPreserve();
cr.SetSourceRGB(0, 0, 0);
cr.Stroke();
int x = (int)(box.Rect.X + TAGBOX_PADDING * 2 + TAGBOX_XSIZE);
int y = (int)(box.Rect.Y + box.Rect.Height / 2 + cr.FontExtents.Height / 2 - cr.FontExtents.Descent / 2);
cr.MoveTo(x, y);
cr.TextPath(box.Tag);
cr.SetSourceRGB(1.0, 1.0, 1.0);
cr.Fill();
cr.MoveTo(box.Rect.X + TAGBOX_PADDING + TAGBOX_XOFFSET, box.Rect.Y + TAGBOX_PADDING + TAGBOX_XOFFSET);
cr.RelLineTo(TAGBOX_XSIZE - TAGBOX_XOFFSET * 2, TAGBOX_XSIZE - TAGBOX_XOFFSET * 2);
cr.MoveTo(box.Rect.X + TAGBOX_PADDING + TAGBOX_XOFFSET, box.Rect.Y + TAGBOX_PADDING + TAGBOX_XSIZE - TAGBOX_XOFFSET);
cr.RelLineTo(TAGBOX_XSIZE - TAGBOX_XOFFSET * 2, -TAGBOX_XSIZE + TAGBOX_XOFFSET * 2);
cr.Stroke();
}
return(baseDrawnResult);
}
public override void DrawFrameBackground(Cairo.Context cr, Gdk.Rectangle alloc, Cairo.Color color, Cairo.Pattern pattern)
{
color.A = Context.FillAlpha;
if (pattern != null)
{
cr.SetSource(pattern);
}
else
{
cr.SetSourceColor(color);
}
CairoExtensions.RoundedRectangle(cr, alloc.X, alloc.Y, alloc.Width, alloc.Height, Context.Radius, CairoCorners.All);
cr.Fill();
}
public override void DrawColumnHighlight(Cairo.Context cr, Gdk.Rectangle alloc, Cairo.Color color)
{
Color light_color = CairoExtensions.ColorShade(color, 1.6);
Color dark_color = CairoExtensions.ColorShade(color, 1.3);
using (var grad = new LinearGradient(alloc.X, alloc.Y, alloc.X, alloc.Bottom - 1)) {
grad.AddColorStop(0, light_color);
grad.AddColorStop(1, dark_color);
cr.SetSource(grad);
cr.Rectangle(alloc.X + 1.5, alloc.Y + 1.5, alloc.Width - 3, alloc.Height - 2);
cr.Fill();
}
}
protected override void ClippedRender(Cairo.Context cr)
{
LinearGradient grad = new LinearGradient(0, 0, RenderSize.Width, RenderSize.Height);
grad.AddColorStop(0, new Color(0.5, 0.5, 0.5));
grad.AddColorStop(1, new Color(0, 0, 0));
cr.SetSource(grad);
cr.Rectangle(0, 0, RenderSize.Width, RenderSize.Height);
cr.Fill();
grad.Dispose();
base.ClippedRender(cr);
}
public void FlipVertical()
{
Layer dest = PintaCore.Layers.CreateLayer();
using (Cairo.Context g = new Cairo.Context(dest.Surface)) {
g.Matrix = new Matrix(1, 0, 0, -1, 0, Surface.Height);
g.SetSource(Surface);
g.Paint();
}
Surface old = Surface;
Surface = dest.Surface;
(old as IDisposable).Dispose();
}
protected unsafe override void OnFillRegionComputed (IBitVector2D stencil)
{
Document doc = PintaCore.Workspace.ActiveDocument;
ImageSurface surf = doc.ToolLayer.Surface;
using (var g = new Context (surf)) {
g.Operator = Operator.Source;
g.SetSource (doc.CurrentUserLayer.Surface);
g.Paint ();
}
SimpleHistoryItem hist = new SimpleHistoryItem (Icon, Name);
hist.TakeSnapshotOfLayer (doc.CurrentUserLayer);
ColorBgra color = fill_color.ToColorBgra ().ToPremultipliedAlpha ();
ColorBgra* dstPtr = (ColorBgra*)surf.DataPtr;
int width = surf.Width;
surf.Flush ();
// Color in any pixel that the stencil says we need to fill
Parallel.For (0, stencil.Height, y =>
{
int stencil_width = stencil.Width;
for (int x = 0; x < stencil_width; ++x) {
if (stencil.GetUnchecked (x, y)) {
surf.SetColorBgraUnchecked (dstPtr, width, color, x, y);
}
}
});
surf.MarkDirty ();
// Transfer the temp layer to the real one,
// respecting any selection area
using (var g = doc.CreateClippedContext ()) {
g.Operator = Operator.Source;
g.SetSource (surf);
g.Paint ();
}
doc.ToolLayer.Clear ();
doc.History.PushNewItem (hist);
doc.Workspace.Invalidate ();
}
public override void Render(Context cr)
{
if (!CanResize) {
return;
}
var selected_color = CairoExtensions.GdkRGBAToCairoColor (Window.StyleContext.GetColor (StateFlags.Selected));
var grad = new LinearGradient (0, 0, 0, Allocation.Height);
selected_color.A = 0.4;
grad.AddColorStop (0, selected_color);
selected_color.A = 1.0;
grad.AddColorStop (1, selected_color);
cr.SetSource (grad);
cr.LineWidth = 1.0;
cr.Rectangle (0.5, 0.5, Allocation.Width - 1, Allocation.Height - 1);
cr.Stroke ();
selected_color.A = 0.5;
cr.SetSourceColor (selected_color);
double handle_size = 8;
double ty = 0.5 + Allocation.Height - handle_size - 3;
double tx = 0.5 + (Window.Direction == TextDirection.Ltr
? Allocation.Width - handle_size - 3
: 3);
cr.Translate (tx, ty);
for (double i = 0; i < 3; i++) {
if (Window.Direction == TextDirection.Ltr) {
cr.MoveTo (i * 3, handle_size);
cr.LineTo (handle_size, i * 3);
} else {
cr.MoveTo (0, i * 3);
cr.LineTo (handle_size - i * 3, handle_size);
}
}
cr.Stroke ();
cr.Translate (-tx, -ty);
}
/// <summary>
/// Exports the specified <see cref="PlotModel" /> to a png file.
/// </summary>
/// <param name="model">The model.</param>
/// <param name="fileName">Name of the output file.</param>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="background">The background color.</param>
public static void Export(IPlotModel model, string fileName, int width, int height, Pattern background = null)
{
using (var bm = new ImageSurface(Format.ARGB32, width, height))
{
using (var g = new Context(bm))
{
if (background != null)
{
g.Save();
g.SetSource(background);
g.Rectangle(0, 0, width, height);
g.Fill();
g.Restore();
}
var rc = new GraphicsRenderContext { RendersToScreen = false };
rc.SetGraphicsTarget(g);
model.Update(true);
model.Render(rc, width, height);
bm.WriteToPng(fileName);
}
}
}
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 ();
}
public void Rotate180()
{
Layer dest = PintaCore.Layers.CreateLayer ();
using (Cairo.Context g = new Cairo.Context (dest.Surface)) {
g.Matrix = new Matrix (-1, 0, 0, -1, Surface.Width, Surface.Height);
g.SetSource (Surface);
g.Paint ();
}
Surface old = Surface;
Surface = dest.Surface;
(old as IDisposable).Dispose ();
}
public unsafe void HueSaturation(int hueDelta, int satDelta, int lightness)
{
ImageSurface dest = Surface.Clone ();
ColorBgra* dstPtr = (ColorBgra*)dest.DataPtr;
int len = Surface.Data.Length / 4;
// map the range [0,100] -> [0,100] and the range [101,200] -> [103,400]
if (satDelta > 100)
satDelta = ((satDelta - 100) * 3) + 100;
UnaryPixelOp op;
if (hueDelta == 0 && satDelta == 100 && lightness == 0)
op = new UnaryPixelOps.Identity ();
else
op = new UnaryPixelOps.HueSaturationLightness (hueDelta, satDelta, lightness);
op.Apply (dstPtr, len);
using (Context g = new Context (Surface)) {
g.AppendPath (PintaCore.Layers.SelectionPath);
g.FillRule = FillRule.EvenOdd;
g.Clip ();
g.SetSource (dest);
g.Paint ();
}
(dest as IDisposable).Dispose ();
}
void DrawTab (Context ctx, DockNotebookTab tab, Gdk.Rectangle allocation, Gdk.Rectangle tabBounds, bool highlight, bool active, bool dragging, Pango.Layout la)
{
// This logic is stupid to have here, should be in the caller!
if (dragging) {
tabBounds.X = (int)(tabBounds.X + (dragX - tabBounds.X) * dragXProgress);
tabBounds.X = Clamp (tabBounds.X, tabStartX, tabEndX - tabBounds.Width);
}
double rightPadding = (active ? TabActivePadding.Right : TabPadding.Right) - (LeanWidth / 2);
rightPadding = (rightPadding * Math.Min (1.0, Math.Max (0.5, (tabBounds.Width - 30) / 70.0)));
double leftPadding = (active ? TabActivePadding.Left : TabPadding.Left) - (LeanWidth / 2);
leftPadding = (leftPadding * Math.Min (1.0, Math.Max (0.5, (tabBounds.Width - 30) / 70.0)));
double bottomPadding = active ? TabActivePadding.Bottom : TabPadding.Bottom;
DrawTabBackground (this, ctx, allocation, tabBounds.Width, tabBounds.X, active);
ctx.LineWidth = 1;
ctx.NewPath ();
// Render Close Button (do this first so we can tell how much text to render)
var closeButtonAlloation = new Cairo.Rectangle (tabBounds.Right - rightPadding - (tabCloseImage.Width / 2) - CloseButtonMarginRight,
tabBounds.Height - bottomPadding - tabCloseImage.Height - CloseButtonMarginBottom,
tabCloseImage.Width, tabCloseImage.Height);
tab.CloseButtonActiveArea = closeButtonAlloation.Inflate (2, 2);
bool closeButtonHovered = tracker.Hovered && tab.CloseButtonActiveArea.Contains (tracker.MousePosition);
bool tabHovered = tracker.Hovered && tab.Allocation.Contains (tracker.MousePosition);
bool drawCloseButton = active || tabHovered;
if (!closeButtonHovered && tab.DirtyStrength > 0.5) {
ctx.DrawImage (this, tabDirtyImage, closeButtonAlloation.X, closeButtonAlloation.Y);
drawCloseButton = false;
}
if (drawCloseButton)
ctx.DrawImage (this, tabCloseImage.WithAlpha ((closeButtonHovered ? 1.0 : 0.5) * tab.Opacity), closeButtonAlloation.X, closeButtonAlloation.Y);
// Render Text
double tw = tabBounds.Width - (leftPadding + rightPadding);
if (drawCloseButton || tab.DirtyStrength > 0.5)
tw -= closeButtonAlloation.Width / 2;
double tx = tabBounds.X + leftPadding;
var baseline = la.GetLine (0).Layout.GetPixelBaseline ();
double ty = tabBounds.Height - bottomPadding - baseline;
ctx.MoveTo (tx, ty);
if (!MonoDevelop.Core.Platform.IsMac && !MonoDevelop.Core.Platform.IsWindows) {
// This is a work around for a linux specific problem.
// A bug in the proprietary ATI driver caused TAB text not to draw.
// If that bug get's fixed remove this HACK asap.
la.Ellipsize = Pango.EllipsizeMode.End;
la.Width = (int)(tw * Pango.Scale.PangoScale);
ctx.SetSourceColor ((tab.Notify ? Styles.TabBarNotifyTextColor : (active ? Styles.TabBarActiveTextColor : Styles.TabBarInactiveTextColor)).ToCairoColor ());
Pango.CairoHelper.ShowLayout (ctx, la.GetLine (0).Layout);
} else {
// ellipses are for space wasting ..., we cant afford that
using (var lg = new LinearGradient (tx + tw - 10, 0, tx + tw, 0)) {
var color = (tab.Notify ? Styles.TabBarNotifyTextColor : (active ? Styles.TabBarActiveTextColor : Styles.TabBarInactiveTextColor)).ToCairoColor ();
color = color.MultiplyAlpha (tab.Opacity);
lg.AddColorStop (0, color);
color.A = 0;
lg.AddColorStop (1, color);
ctx.SetSource (lg);
Pango.CairoHelper.ShowLayout (ctx, la.GetLine (0).Layout);
}
}
la.Dispose ();
}
void DrawShape(Context g, int width, int height)
{
int inner_x = radius + border + inner;
int cx = Center.X;
int cy = Center.Y;
g.Operator = Operator.Source;
g.SetSource (new SolidPattern (new Cairo.Color (0,0,0,0)));
g.Rectangle (0, 0, width, height);
g.Paint ();
g.NewPath ();
g.Translate (cx, cy);
g.Rotate (angle);
g.SetSource (new SolidPattern (new Cairo.Color (0.2, 0.2, 0.2, .6)));
g.Operator = Operator.Over;
g.Rectangle (0, - (border + inner), inner_x, 2 * (border + inner));
g.Arc (inner_x, 0, inner + border, 0, 2 * Math.PI);
g.Arc (0, 0, radius + border, 0, 2 * Math.PI);
g.Fill ();
g.SetSource (new SolidPattern (new Cairo.Color (0, 0, 0, 1.0)));
g.Operator = Operator.DestOut;
g.Arc (inner_x, 0, inner, 0, 2 * Math.PI);
#if true
g.Fill ();
#else
g.FillPreserve ();
g.Operator = Operator.Over;
RadialGradient rg = new RadialGradient (inner_x - (inner * 0.3), inner * 0.3 , inner * 0.1, inner_x, 0, inner);
rg.AddColorStop (0, new Cairo.Color (0.0, 0.2, .8, 0.5));
rg.AddColorStop (0.7, new Cairo.Color (0.0, 0.2, .8, 0.1));
rg.AddColorStop (1.0, new Cairo.Color (0.0, 0.0, 0.0, 0.0));
g.Source = rg;
g.Fill ();
rg.Destroy ();
#endif
g.Operator = Operator.Over;
g.Matrix = new Matrix ();
g.Translate (cx, cy);
if (source != null)
CairoHelper.SetSourcePixbuf (g, source, -source.Width / 2, -source.Height / 2);
g.Arc (0, 0, radius, 0, 2 * Math.PI);
g.Fill ();
if (overlay != null) {
CairoHelper.SetSourcePixbuf (g, overlay, -overlay.Width / 2, -overlay.Height / 2);
g.Arc (0, 0, radius, angle, angle + Math.PI);
g.ClosePath ();
g.FillPreserve ();
g.SetSource (new SolidPattern (new Cairo.Color (1.0, 1.0, 1.0, 1.0)));
g.Stroke ();
}
}
/// <summary>
/// Rotates layer by the specified angle (in degrees).
/// </summary>
/// <param name='angle'>
/// Angle (in degrees).
/// </param>
public void Rotate(double angle)
{
int w = PintaCore.Workspace.ImageSize.Width;
int h = PintaCore.Workspace.ImageSize.Height;
double radians = (angle / 180d) * Math.PI;
double cos = Math.Cos (radians);
double sin = Math.Sin (radians);
var newSize = RotateDimensions (PintaCore.Workspace.ImageSize, angle);
Layer dest = PintaCore.Layers.CreateLayer (string.Empty, newSize.Width, newSize.Height);
using (Cairo.Context g = new Cairo.Context (dest.Surface)) {
g.Matrix = new Matrix (cos, sin, -sin, cos, newSize.Width / 2.0, newSize.Height / 2.0);
g.Translate (-w / 2.0, -h / 2.0);
g.SetSource (Surface);
g.Paint ();
}
Surface old = Surface;
Surface = dest.Surface;
(old as IDisposable).Dispose ();
}
public void Crop(Gdk.Rectangle rect, Path path)
{
ImageSurface dest = new ImageSurface (Format.Argb32, rect.Width, rect.Height);
using (Context g = new Context (dest)) {
// Move the selected content to the upper left
g.Translate (-rect.X, -rect.Y);
g.Antialias = Antialias.None;
// Respect the selected path
g.AppendPath (path);
g.FillRule = Cairo.FillRule.EvenOdd;
g.Clip ();
g.SetSource (Surface);
g.Paint ();
}
(Surface as IDisposable).Dispose ();
Surface = dest;
}
public void draw(Context cr)
{
PointD p = model.position;
cr.Save();
cr.Translate (p.X-image.Width/2, p.Y-image.Height/2);
cr.SetSource(image);
cr.Paint();
cr.Restore();
cr.MoveTo(p);
cr.SetSourceRGB (0.3, 1.0, 0.3);
cr.Arc (p.X, p.Y, 5, 0, 2 * Math.PI);
cr.Fill ();
}
protected unsafe override void OnMouseMove(object o, Gtk.MotionNotifyEventArgs args, Cairo.PointD point)
{
Document doc = PintaCore.Workspace.ActiveDocument;
ColorBgra old_color;
ColorBgra new_color;
if (mouse_button == 1) {
old_color = PintaCore.Palette.PrimaryColor.ToColorBgra ();
new_color = PintaCore.Palette.SecondaryColor.ToColorBgra ();
} else if (mouse_button == 3) {
old_color = PintaCore.Palette.SecondaryColor.ToColorBgra ();
new_color = PintaCore.Palette.PrimaryColor.ToColorBgra ();
} else {
last_point = point_empty;
return;
}
int x = (int)point.X;
int y = (int)point.Y;
if (last_point.Equals (point_empty))
last_point = new Point (x, y);
if (doc.Workspace.PointInCanvas (point))
surface_modified = true;
ImageSurface surf = doc.CurrentLayer.Surface;
ImageSurface tmp_layer = doc.ToolLayer.Surface;
Gdk.Rectangle roi = GetRectangleFromPoints (last_point, new Point (x, y));
roi = PintaCore.Workspace.ClampToImageSize (roi);
myTolerance = (int)(Tolerance * 256);
tmp_layer.Flush ();
ColorBgra* tmp_data_ptr = (ColorBgra*)tmp_layer.DataPtr;
int tmp_width = tmp_layer.Width;
ColorBgra* surf_data_ptr = (ColorBgra*)surf.DataPtr;
int surf_width = surf.Width;
// The stencil lets us know if we've already checked this
// pixel, providing a nice perf boost
// Maybe this should be changed to a BitVector2DSurfaceAdapter?
for (int i = roi.X; i <= roi.GetRight (); i++)
for (int j = roi.Y; j <= roi.GetBottom (); j++) {
if (stencil[i, j])
continue;
if (IsColorInTolerance (new_color, surf.GetColorBgra (surf_data_ptr, surf_width, i, j)))
*tmp_layer.GetPointAddressUnchecked (tmp_data_ptr, tmp_width, i, j) = AdjustColorDifference (new_color, old_color, surf.GetColorBgra (surf_data_ptr, surf_width, i, j));
stencil[i, j] = true;
}
tmp_layer.MarkDirty ();
using (Context g = new Context (surf)) {
g.AppendPath (doc.Selection.SelectionPath);
g.FillRule = FillRule.EvenOdd;
g.Clip ();
g.Antialias = UseAntialiasing ? Antialias.Subpixel : Antialias.None;
g.MoveTo (last_point.X, last_point.Y);
g.LineTo (x, y);
g.LineWidth = BrushWidth;
g.LineJoin = LineJoin.Round;
g.LineCap = LineCap.Round;
g.SetSource (tmp_layer);
g.Stroke ();
}
doc.Workspace.Invalidate (roi);
last_point = new Point (x, y);
}
private Surface CreateScene (Cairo.Context window_cr, ImageSurface image, int reflect)
{
Surface surface = window_cr.Target.CreateSimilar (window_cr.Target.Content,
image.Width, image.Height + reflect);
Cairo.Context cr = new Context (surface);
cr.Save ();
cr.SetSource (image);
cr.Paint ();
cr.Rectangle (0, image.Height, image.Width, reflect);
cr.Clip ();
Matrix matrix = new Matrix ();
matrix.InitScale (1, -1);
matrix.Translate (0, -(2 * image.Height) + 1);
cr.Transform (matrix);
cr.SetSource (image);
cr.Paint ();
cr.Restore ();
Color bg_transparent = BackgroundColor;
bg_transparent.A = 0.65;
LinearGradient mask = new LinearGradient (0, image.Height, 0, image.Height + reflect);
mask.AddColorStop (0, bg_transparent);
mask.AddColorStop (1, BackgroundColor);
cr.Rectangle (0, image.Height, image.Width, reflect);
cr.Pattern = mask;
cr.Fill ();
((IDisposable)cr).Dispose ();
return surface;
}
public override void SetAsSource(Context ctx, Rectangle bounds = default(Rectangle))
{
float widthRatio = 1f;
float heightRatio = 1f;
if (Scaled){
widthRatio = (float)bounds.Width / Dimensions.Width;
heightRatio = (float)bounds.Height / Dimensions.Height;
}
if (KeepProportions) {
if (widthRatio < heightRatio)
heightRatio = widthRatio;
else
widthRatio = heightRatio;
}
using (ImageSurface tmp = new ImageSurface (Format.Argb32, bounds.Width, bounds.Height)) {
using (Cairo.Context gr = new Context (tmp)) {
gr.Translate (bounds.Left, bounds.Top);
gr.Scale (widthRatio, heightRatio);
gr.Translate ((bounds.Width/widthRatio - Dimensions.Width)/2, (bounds.Height/heightRatio - Dimensions.Height)/2);
hSVG.RenderCairo (gr);
}
ctx.SetSource (tmp);
}
}
protected override void OnMouseMove(object o, Gtk.MotionNotifyEventArgs args, Cairo.PointD point)
{
base.OnMouseMove (o, args, point);
if (tracking) {
UserBlendOps.NormalBlendOp normalBlendOp = new UserBlendOps.NormalBlendOp();
GradientRenderer gr = null;
switch (GradientType) {
case eGradientType.Linear:
gr = new GradientRenderers.LinearClamped (GradientColorMode == GradientColorMode.Transparency, normalBlendOp);
break;
case eGradientType.LinearReflected:
gr = new GradientRenderers.LinearReflected (GradientColorMode == GradientColorMode.Transparency, normalBlendOp);
break;
case eGradientType.Radial:
gr = new GradientRenderers.Radial (GradientColorMode == GradientColorMode.Transparency, normalBlendOp);
break;
case eGradientType.Diamond:
gr = new GradientRenderers.LinearDiamond (GradientColorMode == GradientColorMode.Transparency, normalBlendOp);
break;
case eGradientType.Conical:
gr = new GradientRenderers.Conical (GradientColorMode == GradientColorMode.Transparency, normalBlendOp);
break;
}
if (button == 3) {//right
gr.StartColor = PintaCore.Palette.SecondaryColor.ToColorBgra ();
gr.EndColor = PintaCore.Palette.PrimaryColor.ToColorBgra ();
}
else {//1 left
gr.StartColor = PintaCore.Palette.PrimaryColor.ToColorBgra ();
gr.EndColor = PintaCore.Palette.SecondaryColor.ToColorBgra ();
}
gr.StartPoint = startpoint;
gr.EndPoint = point;
gr.AlphaBlending = UseAlphaBlending;
gr.BeforeRender ();
Gdk.Rectangle selection_bounds = PintaCore.Layers.SelectionPath.GetBounds ();
ImageSurface scratch_layer = PintaCore.Layers.ToolLayer.Surface;
gr.Render (scratch_layer, new Gdk.Rectangle[] { selection_bounds });
using (Context g = new Context (PintaCore.Layers.CurrentLayer.Surface)) {
g.AppendPath (PintaCore.Layers.SelectionPath);
g.FillRule = FillRule.EvenOdd;
g.Clip ();
g.SetSource (scratch_layer);
g.Paint ();
}
selection_bounds.Inflate (5, 5);
PintaCore.Workspace.Invalidate (selection_bounds);
}
}
static void DrawCloseButton (Context context, Gdk.Point center, bool hovered, double opacity, double animationProgress)
{
if (hovered) {
const double radius = 6;
context.Arc (center.X, center.Y, radius, 0, Math.PI * 2);
context.SetSourceRGBA (.6, .6, .6, opacity);
context.Fill ();
context.SetSourceRGBA (0.95, 0.95, 0.95, opacity);
context.LineWidth = 2;
context.MoveTo (center.X - 3, center.Y - 3);
context.LineTo (center.X + 3, center.Y + 3);
context.MoveTo (center.X - 3, center.Y + 3);
context.LineTo (center.X + 3, center.Y - 3);
context.Stroke ();
} else {
double lineColor = .63 - .1 * animationProgress;
const double fillColor = .74;
double heightMod = Math.Max (0, 1.0 - animationProgress * 2);
context.MoveTo (center.X - 3, center.Y - 3 * heightMod);
context.LineTo (center.X + 3, center.Y + 3 * heightMod);
context.MoveTo (center.X - 3, center.Y + 3 * heightMod);
context.LineTo (center.X + 3, center.Y - 3 * heightMod);
context.LineWidth = 2;
context.SetSourceRGBA (lineColor, lineColor, lineColor, opacity);
context.Stroke ();
if (animationProgress > 0.5) {
double partialProg = (animationProgress - 0.5) * 2;
context.MoveTo (center.X - 3, center.Y);
context.LineTo (center.X + 3, center.Y);
context.LineWidth = 2 - partialProg;
context.SetSourceRGBA (lineColor, lineColor, lineColor, opacity);
context.Stroke ();
double radius = partialProg * 3.5;
// Background
context.Arc (center.X, center.Y, radius, 0, Math.PI * 2);
context.SetSourceRGBA (fillColor, fillColor, fillColor, opacity);
context.Fill ();
// Inset shadow
using (var lg = new LinearGradient (0, center.Y - 5, 0, center.Y)) {
context.Arc (center.X, center.Y + 1, radius, 0, Math.PI * 2);
lg.AddColorStop (0, new Cairo.Color (0, 0, 0, 0.2 * opacity));
lg.AddColorStop (1, new Cairo.Color (0, 0, 0, 0));
context.SetSource (lg);
context.Stroke ();
}
// Outline
context.Arc (center.X, center.Y, radius, 0, Math.PI * 2);
context.SetSourceRGBA (lineColor, lineColor, lineColor, opacity);
context.Stroke ();
}
}
}
public static ImageSurface Clone(this ImageSurface surf)
{
if (PintaCore.Workspace.HasOpenDocuments)
PintaCore.Workspace.ActiveDocument.SignalSurfaceCloned ();
ImageSurface newsurf = new ImageSurface (surf.Format, surf.Width, surf.Height);
using (Context g = new Context (newsurf)) {
g.SetSource (surf);
g.Paint ();
}
return newsurf;
}
protected override void OnStartTransform()
{
base.OnStartTransform ();
Document doc = PintaCore.Workspace.ActiveDocument;
original_selection = new List<List<IntPoint>> (doc.Selection.SelectionPolygons);
original_transform.InitMatrix (doc.SelectionLayer.Transform);
hist = new MovePixelsHistoryItem (Icon, Name, doc);
hist.TakeSnapshot (!doc.ShowSelectionLayer);
if (!doc.ShowSelectionLayer) {
// Copy the selection to the temp layer
doc.CreateSelectionLayer ();
doc.ShowSelectionLayer = true;
using (Cairo.Context g = new Cairo.Context (doc.SelectionLayer.Surface)) {
g.AppendPath (doc.Selection.SelectionPath);
g.FillRule = FillRule.EvenOdd;
g.SetSource (doc.CurrentUserLayer.Surface);
g.Clip ();
g.Paint ();
}
Cairo.ImageSurface surf = doc.CurrentUserLayer.Surface;
using (Cairo.Context g = new Cairo.Context (surf)) {
g.AppendPath (doc.Selection.SelectionPath);
g.FillRule = FillRule.EvenOdd;
g.Operator = Cairo.Operator.Clear;
g.Fill ();
}
}
PintaCore.Workspace.Invalidate ();
}
public void Rotate90CW()
{
int w = PintaCore.Workspace.ImageSize.X;
int h = PintaCore.Workspace.ImageSize.Y;
Layer dest = PintaCore.Layers.CreateLayer (string.Empty, h, w);
using (Cairo.Context g = new Cairo.Context (dest.Surface)) {
g.Translate (h / 2d, w / 2d);
g.Rotate (Math.PI / 2);
g.Translate (-w / 2d, -h / 2d);
g.SetSource (Surface);
g.Paint ();
}
Surface old = Surface;
Surface = dest.Surface;
(old as IDisposable).Dispose ();
}
void DrawBackground (Context ctx, Gdk.Rectangle region)
{
var h = region.Height;
ctx.Rectangle (0, 0, region.Width, h);
using (var gr = new LinearGradient (0, 0, 0, h)) {
if (isActiveNotebook) {
gr.AddColorStop (0, Styles.TabBarActiveGradientStartColor);
gr.AddColorStop (1, Styles.TabBarActiveGradientEndColor);
} else {
gr.AddColorStop (0, Styles.TabBarGradientStartColor);
gr.AddColorStop (1, Styles.TabBarGradientEndColor);
}
ctx.SetSource (gr);
ctx.Fill ();
}
ctx.MoveTo (region.X, 0.5);
ctx.LineTo (region.Right + 1, 0.5);
ctx.LineWidth = 1;
ctx.SetSourceColor (Styles.TabBarGradientShadowColor);
ctx.Stroke ();
}
public virtual void ApplyTransform(Matrix xform, Size new_size)
{
var old_size = PintaCore.Workspace.ImageSize;
var dest = new ImageSurface (Format.ARGB32, new_size.Width, new_size.Height);
using (var g = new Context (dest))
{
g.Transform (xform);
g.SetSource (Surface);
g.Paint ();
}
Surface old = Surface;
Surface = dest;
old.Dispose ();
}
void DrawTab (Context ctx, DockNotebookTab tab, Gdk.Rectangle allocation, Gdk.Rectangle tabBounds, bool highlight, bool active, bool dragging, Pango.Layout la)
{
// This logic is stupid to have here, should be in the caller!
if (dragging) {
tabBounds.X = (int)(tabBounds.X + (dragX - tabBounds.X) * dragXProgress);
tabBounds.X = Clamp (tabBounds.X, tabStartX, tabEndX - tabBounds.Width);
}
int padding = LeftRightPadding;
padding = (int)(padding * Math.Min (1.0, Math.Max (0.5, (tabBounds.Width - 30) / 70.0)));
ctx.LineWidth = 1;
LayoutTabBorder (ctx, allocation, tabBounds.Width, tabBounds.X, 0, active);
ctx.ClosePath ();
using (var gr = new LinearGradient (tabBounds.X, TopBarPadding, tabBounds.X, allocation.Bottom)) {
if (active) {
gr.AddColorStop (0, Styles.BreadcrumbGradientStartColor.MultiplyAlpha (tab.Opacity));
gr.AddColorStop (1, Styles.BreadcrumbBackgroundColor.MultiplyAlpha (tab.Opacity));
} else {
gr.AddColorStop (0, CairoExtensions.ParseColor ("f4f4f4").MultiplyAlpha (tab.Opacity));
gr.AddColorStop (1, CairoExtensions.ParseColor ("cecece").MultiplyAlpha (tab.Opacity));
}
ctx.SetSource (gr);
}
ctx.Fill ();
ctx.SetSourceColor (new Cairo.Color (1, 1, 1, .5).MultiplyAlpha (tab.Opacity));
LayoutTabBorder (ctx, allocation, tabBounds.Width, tabBounds.X, 1, active);
ctx.Stroke ();
ctx.SetSourceColor (Styles.BreadcrumbBorderColor.MultiplyAlpha (tab.Opacity));
LayoutTabBorder (ctx, allocation, tabBounds.Width, tabBounds.X, 0, active);
ctx.StrokePreserve ();
if (tab.GlowStrength > 0) {
Gdk.Point mouse = tracker.MousePosition;
using (var rg = new RadialGradient (mouse.X, tabBounds.Bottom, 0, mouse.X, tabBounds.Bottom, 100)) {
rg.AddColorStop (0, new Cairo.Color (1, 1, 1, 0.4 * tab.Opacity * tab.GlowStrength));
rg.AddColorStop (1, new Cairo.Color (1, 1, 1, 0));
ctx.SetSource (rg);
ctx.Fill ();
}
} else {
ctx.NewPath ();
}
// Render Close Button (do this first so we can tell how much text to render)
var ch = allocation.Height - TopBarPadding - BottomBarPadding + CloseImageTopOffset;
var crect = new Gdk.Rectangle (tabBounds.Right - padding - CloseButtonSize + 3,
tabBounds.Y + TopBarPadding + (ch - CloseButtonSize) / 2,
CloseButtonSize, CloseButtonSize);
tab.CloseButtonAllocation = crect;
tab.CloseButtonAllocation.Inflate (2, 2);
bool closeButtonHovered = tracker.Hovered && tab.CloseButtonAllocation.Contains (tracker.MousePosition) && tab.WidthModifier >= 1.0f;
bool drawCloseButton = tabBounds.Width > 60 || highlight || closeButtonHovered;
if (drawCloseButton) {
DrawCloseButton (ctx, new Gdk.Point (crect.X + crect.Width / 2, crect.Y + crect.Height / 2), closeButtonHovered, tab.Opacity, tab.DirtyStrength);
}
// Render Text
int w = tabBounds.Width - (padding * 2 + CloseButtonSize);
if (!drawCloseButton)
w += CloseButtonSize;
int textStart = tabBounds.X + padding;
ctx.MoveTo (textStart, tabBounds.Y + TopPadding + TextOffset + VerticalTextSize);
if (!MonoDevelop.Core.Platform.IsMac && !MonoDevelop.Core.Platform.IsWindows) {
// This is a work around for a linux specific problem.
// A bug in the proprietary ATI driver caused TAB text not to draw.
// If that bug get's fixed remove this HACK asap.
la.Ellipsize = Pango.EllipsizeMode.End;
la.Width = (int)(w * Pango.Scale.PangoScale);
ctx.SetSourceColor (tab.Notify ? new Cairo.Color (0, 0, 1) : Styles.TabBarActiveTextColor);
Pango.CairoHelper.ShowLayoutLine (ctx, la.GetLine (0));
} else {
// ellipses are for space wasting ..., we cant afford that
using (var lg = new LinearGradient (textStart + w - 5, 0, textStart + w + 3, 0)) {
var color = tab.Notify ? new Cairo.Color (0, 0, 1) : Styles.TabBarActiveTextColor;
color = color.MultiplyAlpha (tab.Opacity);
lg.AddColorStop (0, color);
color.A = 0;
lg.AddColorStop (1, color);
ctx.SetSource (lg);
Pango.CairoHelper.ShowLayoutLine (ctx, la.GetLine (0));
}
}
la.Dispose ();
}
void PlaceSurface (Context cr, DockySurface surface, Gdk.Rectangle allocation)
{
int iconSize = allocation.Height - IconBuffer * 2;
int x = allocation.X + Padding + ((iconSize - surface.Width) / 2);
int y = allocation.Y + IconBuffer + ((iconSize - surface.Height) / 2);
cr.SetSource (surface.Internal, x, y);
}
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 ();
}