private Pattern CreateMask()
{
double max = Math.Max(blur.Bounds.Width, blur.Bounds.Height) * .25;
double scale = blur.Bounds.Width / (double)info.Bounds.Width;
RadialGradient circle;
// FIXME ugh cairo 1.0.2 is so broken why are we still shipping it.
if (CairoAPI.cairo_version() > (1 * 10000 + 2 * 100 + 0))
{
circle = new RadialGradient(center.X * scale, center.Y * scale, radius * max * .7,
center.X * scale, center.Y * scale, radius * max + max * .2);
circle.AddColorStop(0, new Cairo.Color(0.0, 0.0, 0.0, 0.0));
circle.AddColorStop(1.0, new Cairo.Color(1.0, 1.0, 1.0, 1.0));
}
else
{
circle = new RadialGradient(center.X * scale, center.Y * scale, radius * max + max * .2,
center.X * scale, center.Y * scale, radius * max * .7);
circle.AddColorStop(1.0, new Cairo.Color(0.0, 0.0, 0.0, 0.0));
circle.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 1.0));
}
return(circle);
}
protected override void OnSizeAllocated(Gdk.Rectangle rect)
{
x = rect.Width / 2.0;
y = rect.Height / 2.0;
radius = Math.Min(rect.Width / 2, rect.Height / 2) - 5;
base_line_width = Math.Sqrt(radius) * 0.2;
bg_gradient = new RadialGradient(x, y, 0, x, y, radius);
bg_gradient.AddColorStop(0, disc_color_a);
bg_gradient.AddColorStop(1, disc_color_b);
fg_gradient = new RadialGradient(x, y, 0, x, y, radius * 2);
fg_gradient.AddColorStop(0, fill_color_a);
fg_gradient.AddColorStop(1, fill_color_b);
fg_gradient_full = new RadialGradient(x, y, 0, x, y, radius);
fg_gradient_full.AddColorStop(0, disc_color_b);
fg_gradient_full.AddColorStop(1, red_color);
bound_gradient = new RadialGradient(x, y, 0, x, y, radius * 2);
bound_gradient.AddColorStop(0, bound_color_a);
bound_gradient.AddColorStop(1, bound_color_b);
base.OnSizeAllocated(rect);
}
public override void DrawPie(double fraction)
{
// Calculate the pie path
fraction = Theme.Clamp(0.0, 1.0, fraction);
double a1 = 3.0 * Math.PI / 2.0;
double a2 = a1 + 2.0 * Math.PI * fraction;
if (fraction == 0.0)
{
return;
}
Context.Cairo.MoveTo(Context.X, Context.Y);
Context.Cairo.Arc(Context.X, Context.Y, Context.Radius, a1, a2);
Context.Cairo.LineTo(Context.X, Context.Y);
// Fill the pie
Color color_a = Colors.GetWidgetColor(GtkColorClass.Background, StateType.Selected);
Color color_b = CairoExtensions.ColorShade(color_a, 1.4);
using (RadialGradient fill = new RadialGradient(Context.X, Context.Y, 0, Context.X, Context.Y, 2.0 * Context.Radius)) {
fill.AddColorStop(0, color_a);
fill.AddColorStop(1, color_b);
Context.Cairo.SetSource(fill);
Context.Cairo.FillPreserve();
}
// Stroke the pie
Context.Cairo.SetSourceColor(CairoExtensions.ColorShade(color_a, 0.8));
Context.Cairo.LineWidth = Context.LineWidth;
Context.Cairo.Stroke();
}
protected override void PaintIconSurface(DockySurface surface)
{
surface.Context.LineWidth = 1;
surface.Context.MoveTo((surface.Width / 2) - 0.5, 0);
surface.Context.LineTo((surface.Width / 2) - 0.5, surface.Height);
RadialGradient rg = new RadialGradient(surface.Width / 2, surface.Height / 2, 0, surface.Width / 2, surface.Height / 2, surface.Height / 2);
rg.AddColorStop(0, new Cairo.Color(1, 1, 1, .5));
rg.AddColorStop(1, new Cairo.Color(1, 1, 1, 0));
surface.Context.Pattern = rg;
surface.Context.Stroke();
rg.Destroy();
surface.Context.MoveTo((surface.Width / 2) + 0.5, 0);
surface.Context.LineTo((surface.Width / 2) + 0.5, surface.Height);
rg = new RadialGradient(surface.Width / 2, surface.Height / 2, 0, surface.Width / 2, surface.Height / 2, surface.Height / 2);
rg.AddColorStop(0, new Cairo.Color(0, 0, 0, 0.5));
rg.AddColorStop(1, new Cairo.Color(0, 0, 0, 0));
surface.Context.Pattern = rg;
surface.Context.Stroke();
rg.Destroy();
}
//---------------------------------------------------------------------
private static void Mask()
{
Action <Surface> draw = surface =>
{
using (var ctx = new Context(surface))
{
ctx.Scale(500, 500);
Gradient linpat = new LinearGradient(0, 0, 1, 1);
linpat.AddColorStop(0, new Color(0, 0.3, 0.8));
linpat.AddColorStop(1, new Color(1, 0.8, 0.3));
Gradient radpat = new RadialGradient(0.5, 0.5, 0.25, 0.5, 0.5, 0.6);
radpat.AddColorStop(0, new Color(0, 0, 0, 1));
radpat.AddColorStop(1, new Color(0, 0, 0, 0));
ctx.Source = linpat;
//ctx.Paint();
ctx.Mask(radpat);
}
};
using (Surface surface = new ImageSurface(Format.Argb32, 500, 500))
{
draw(surface);
surface.WriteToPng("mask.png");
}
using (Surface surface = new PdfSurface("mask.pdf", 500, 500))
draw(surface);
using (Surface surface = new SvgSurface("mask.svg", 500, 500))
draw(surface);
}
static void draw(Cairo.Context gr, int width, int height)
{
gr.Scale(width, height);
gr.LineWidth = 0.04;
LinearGradient pat;
pat = new LinearGradient(0.0, 0.0, 0.0, 1.0);
pat.AddColorStop(1, new Color(0, 0, 0, 1));
pat.AddColorStop(0, new Color(1, 1, 1, 1));
gr.Rectangle(new PointD(0, 0),
1, 1
);
gr.Pattern = pat;
gr.Fill();
pat.Destroy();
RadialGradient pat2 = new RadialGradient(0.45, 0.4, 0.1,
0.4, 0.4, 0.5);
pat2.AddColorStop(0, new Color(1, 1, 1, 1));
pat2.AddColorStop(1, new Color(0, 0, 0, 1));
gr.Pattern = pat2;
gr.Arc(0.5, 0.5, 0.3, 0, 2 * M_PI);
gr.Fill();
pat2.Destroy();
}
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();
}
}
RadialGradient GetCornerGradient(double x, double y, double radius, double thickness)
{
var gradient = new RadialGradient(x, y, radius - thickness, x, y, radius + thickness);
gradient.AddColorStop(0, BackgroundColor);
gradient.AddColorStop(1, GetColor(BackgroundColor, 0.75));
return(gradient);
}
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();
}
public void RadialGradientSmall()
{
InitBlank();
var g = new RadialGradient(5, 5, 5, 30, 30, 15);
g.AddColorStop(0, Colors.Red);
g.AddColorStop(0.5, Colors.Green);
g.AddColorStop(1, Colors.Blue);
context.Rectangle(5, 5, 40, 40);
context.Pattern = g;
context.Fill();
CheckImage("RadialGradientSmall.png");
}
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();
}
private Pattern CreateMask()
{
double max = Math.Max(blur.Bounds.Width, blur.Bounds.Height) * .25;
double scale = blur.Bounds.Width / (double)info.Bounds.Width;
RadialGradient circle;
circle = new RadialGradient(center.X * scale, center.Y * scale, radius * max * .7,
center.X * scale, center.Y * scale, radius * max + max * .2);
circle.AddColorStop(0, new Cairo.Color(0.0, 0.0, 0.0, 0.0));
circle.AddColorStop(1.0, new Cairo.Color(1.0, 1.0, 1.0, 1.0));
return(circle);
}
public void SaveRestoreRadialGradient()
{
// Pattern is saved
InitBlank();
var g = new RadialGradient(20, 20, 5, 30, 30, 30);
g.AddColorStop(0, Colors.Red);
g.AddColorStop(0.5, Colors.Green);
g.AddColorStop(1, Colors.Blue);
context.Save();
context.Pattern = g;
context.Restore();
context.Rectangle(5, 5, 40, 40);
context.Fill();
CheckImage("SaveRestoreRadialGradient.png");
}
//---------------------------------------------------------------------
private static void Demo02()
{
Action <Surface> draw = surface =>
{
using (var c = new Context(surface))
{
c.Scale(500, 500);
Gradient radpat = new RadialGradient(0.25, 0.25, 0.1, 0.5, 0.5, 0.5);
radpat.AddColorStop(0, new Color(1.0, 0.8, 0.8));
radpat.AddColorStop(1, new Color(0.9, 0.0, 0.0));
for (int i = 1; i < 10; i++)
{
for (int j = 1; j < 10; j++)
{
c.Rectangle(i / 10d - 0.04, j / 10d - 0.04, 0.08, 0.08);
}
}
c.Source = radpat;
c.Fill();
Gradient linpat = new LinearGradient(0.25, 0.35, 0.75, 0.65);
linpat.AddColorStop(0.00, new Color(1, 1, 1, 0));
linpat.AddColorStop(0.25, new Color(0, 1, 0, 0.5));
linpat.AddColorStop(0.50, new Color(1, 1, 1, 0));
linpat.AddColorStop(0.75, new Color(0, 0, 1, 0.5));
linpat.AddColorStop(1.00, new Color(1, 1, 1, 0));
c.Rectangle(0, 0, 1, 1);
c.Source = linpat;
c.Fill();
}
};
using (Surface surface = new ImageSurface(Format.Argb32, 500, 500))
{
draw(surface);
surface.WriteToPng("demo02.png");
}
using (Surface surface = new PdfSurface("demo02.pdf", 500, 500))
draw(surface);
using (Surface surface = new SvgSurface("demo02.svg", 500, 500))
draw(surface);
}
public void gradient(Context cr, int width, int height)
{
Normalize(cr, width, height);
LinearGradient lg = new LinearGradient(0.0, 0.0, 0.0, 1.0);
lg.AddColorStop(1, new Color(0, 0, 0, 1));
lg.AddColorStop(0, new Color(1, 1, 1, 1));
cr.Rectangle(0, 0, 1, 1);
cr.Source = lg;
cr.Fill();
RadialGradient rg = new RadialGradient(0.45, 0.4, 0.1, 0.4, 0.4, 0.5);
rg.AddColorStop(0, new Color(1, 1, 1, 1));
rg.AddColorStop(1, new Color(0, 0, 0, 1));
cr.Source = rg;
cr.Arc(0.5, 0.5, 0.3, 0, 2 * Math.PI);
cr.Fill();
}
void DrawLed(int index, Context cr)
{
PointD led = new PointD();
led.X = imageX + CurrentDefinition.Leds[index].X / scale;
led.Y = imageY + CurrentDefinition.Leds[index].Y / scale;
double glowRadius = LedSize * 2 / scale;
RadialGradient gradient = new RadialGradient(led.X, led.Y, 0, led.X, led.Y, glowRadius);
gradient.AddColorStop(0, new Cairo.Color(ColorBuffer[index].Red, ColorBuffer[index].Green, ColorBuffer[index].Blue, ColorBuffer[index].Alpha));
gradient.AddColorStop(0.15, new Cairo.Color(ColorBuffer[index].Red, ColorBuffer[index].Green, ColorBuffer[index].Blue, ColorBuffer[index].Alpha));
gradient.AddColorStop(1, new Cairo.Color(ColorBuffer[index].Red, ColorBuffer[index].Green, ColorBuffer[index].Blue, 0));
cr.Save();
cr.Rectangle(led.X - glowRadius, led.Y - glowRadius, glowRadius * 2, glowRadius * 2);
cr.Clip();
cr.SetSource(gradient);
cr.Mask(gradient);
cr.Restore();
gradient.Dispose();
}
public override void DrawPie(double fraction)
{
// Calculate the pie path
fraction = Theme.Clamp(0.0, 1.0, fraction);
double a1 = 3.0 * Math.PI / 2.0;
double a2 = a1 + 2.0 * Math.PI * fraction;
if (fraction == 0.0)
{
return;
}
Context.Cairo.MoveTo(Context.X, Context.Y);
Context.Cairo.Arc(Context.X, Context.Y, Context.Radius, a1, a2);
Context.Cairo.LineTo(Context.X, Context.Y);
// Fill the pie
Color color_a = CairoExtensions.GdkRGBAToCairoColor(
Widget.StyleContext.GetBackgroundColor(StateFlags.Selected));
Color color_b = CairoExtensions.ColorShade(color_a, 1.4);
RadialGradient fill = new RadialGradient(Context.X, Context.Y, 0,
Context.X, Context.Y, 2.0 * Context.Radius);
fill.AddColorStop(0, color_a);
fill.AddColorStop(1, color_b);
Context.Cairo.Pattern = fill;
Context.Cairo.FillPreserve();
fill.Destroy();
// Stroke the pie
Context.Cairo.Color = CairoExtensions.ColorShade(color_a, 0.8);
Context.Cairo.LineWidth = Context.LineWidth;
Context.Cairo.Stroke();
}
public override void ApplyBrushToContext(GraphicsContext g)
{
using (ImageSurface surface = ((ImageSurface)g.GetTarget()))
{
double actualWidth = surface.Width;
double actualHeight = surface.Height;
double maximumRadius = actualWidth > actualHeight ? actualWidth : actualHeight;
using (RadialGradient lg = new RadialGradient(CX0 * actualWidth, CY0 * actualHeight, Radius0 * maximumRadius, CX1 * actualWidth, CY1 * actualHeight, Radius1 * maximumRadius))
{
if (GradientStops != null)
{
foreach (GradientStop gs in GradientStops)
{
lg.AddColorStop(gs.Offset, gs.Color);
}
}
g.SetSource(lg);
}
}
}
private void Render(Clutter.CairoTexture texture, int with_state, bool outwards)
{
texture.Clear();
Cairo.Context context = texture.Create();
double alpha_f = with_state == 0 ? 0.5 : (with_state == 1 ? 0.8 : 1);
double lwidth = 1;
double hlwidth = lwidth * 0.5;
context.LineWidth = lwidth;
if (outwards)
{
context.MoveTo(texture.Width * 0.5 - texture.Height * 0.45, texture.Height * 0.9);
context.CurveTo(texture.Width * 0.3, texture.Height, texture.Width * 0.6, texture.Height, texture.Width * 0.5 + texture.Height * 0.45, texture.Height * 0.9);
context.ArcNegative(texture.Width * 0.5, texture.Height * 0.9, texture.Height * 0.45, 0, Math.PI);
context.ClosePath();
Gradient g1 = new LinearGradient(0, texture.Height / 2, 0, texture.Height);
g1.AddColorStop(0, new Cairo.Color(0.6, 0.6, 0.6, 1.0 * alpha_f));
g1.AddColorStop(1.0, new Cairo.Color(1.0, 1.0, 1.0, 1.0 * alpha_f));
context.Pattern = g1;
context.FillPreserve();
context.SetSourceRGBA(1.0, 1.0, 1.0, 1.0 * alpha_f);
context.Stroke();
((IDisposable)g1).Dispose();
context.Arc(Width * 0.5, Height * 0.33 + lwidth, Height * 0.33, 0, Math.PI * 2);
context.ClosePath();
context.Operator = Operator.Source;
Gradient g2 = new RadialGradient(texture.Width * 0.5, texture.Height * 0.25, 0, texture.Width * 0.5, texture.Height * 0.25, texture.Width * 0.5);
g2.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 1.0 * alpha_f));
g2.AddColorStop(1.0, new Cairo.Color(0.6, 0.6, 0.6, 1.0 * alpha_f));
context.Pattern = g2;
//context.SetSourceRGBA (1.0, 1.0, 1.0, 1.0*alpha_f);
context.FillPreserve();
Gradient g3 = new LinearGradient(0, 0, 0, texture.Height * 0.5);
g3.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 1.0 * alpha_f));
g3.AddColorStop(1.0, new Cairo.Color(0, 0, 0, 1.0 * alpha_f));
context.Pattern = g3;
//context.SetSourceRGBA (1.0, 1.0, 1.0, 1.0*alpha_f);
context.Stroke();
((IDisposable)g2).Dispose();
((IDisposable)g3).Dispose();
}
else
{
Cairo.PointD c = new Cairo.PointD(texture.Width * 0.5, texture.Height * 0.5);
double max_r = Math.Min(c.X, c.Y) - hlwidth;
context.Arc(c.X, c.Y, max_r, 0, Math.PI * 2);
context.ArcNegative(c.X, c.Y, max_r * 0.25, Math.PI * 2, 0);
context.ClosePath();
context.SetSourceRGBA(0.5, 0.5, 0.5, 1.0 * alpha_f);
context.StrokePreserve();
Gradient g1 = new LinearGradient(0, texture.Height, texture.Width, 0);
g1.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 1.0 * alpha_f));
g1.AddColorStop(0.5, new Cairo.Color(0.7, 0.7, 0.7, 1.0 * alpha_f));
g1.AddColorStop(1, new Cairo.Color(0.9, 0.9, 0.9, 1.0 * alpha_f));
context.Pattern = g1;
context.Fill();
((IDisposable)g1).Dispose();
context.ArcNegative(c.X, c.Y, max_r * 0.25 + lwidth, Math.PI * 1.75, Math.PI * 0.75);
context.Arc(c.X, c.Y, max_r, Math.PI * 0.75, Math.PI * 1.75);
context.ClosePath();
Gradient g2 = new LinearGradient(c.X, c.Y, c.X * 0.35, c.Y * 0.35);
g2.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 1.0 * alpha_f));
g2.AddColorStop(1, new Cairo.Color(1.0, 1.0, 1.0, 0.0));
context.Pattern = g2;
context.Fill();
((IDisposable)g2).Dispose();
context.ArcNegative(c.X, c.Y, max_r * 0.25 + lwidth, Math.PI * 2, 0);
context.Arc(c.X, c.Y, max_r * 0.45, 0, Math.PI * 2);
context.SetSourceRGBA(1.0, 1.0, 1.0, 0.8 * alpha_f);
context.Fill();
context.Arc(c.X, c.Y, max_r - lwidth, 0, Math.PI * 2);
Gradient g3 = new LinearGradient(0, texture.Height, texture.Width, 0);
g3.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 0.0));
g3.AddColorStop(1, new Cairo.Color(0.9, 0.9, 0.9, 1.0 * alpha_f));
context.Pattern = g3;
context.Stroke();
((IDisposable)g3).Dispose();
}
((IDisposable)context.Target).Dispose();
((IDisposable)context).Dispose();
}
protected override void PaintIconSurface(DockySurface surface)
{
int size = Math.Min(surface.Width, surface.Height);
Context cr = surface.Context;
double center = size / 2.0;
Cairo.Color base_color = new Cairo.Color(1, .3, .3, .5).SetHue(120 * (1 - CPUUtilization));
double radius = Math.Max(Math.Min(CPUUtilization * 1.3, 1), .001);
// draw underlay
cr.Arc(center, center, center * RadiusPercent, 0, Math.PI * 2);
cr.Color = new Cairo.Color(0, 0, 0, .5);
cr.FillPreserve();
RadialGradient rg = new RadialGradient(center, center, 0, center, center, center * RadiusPercent);
rg.AddColorStop(0, base_color);
rg.AddColorStop(0.2, base_color);
rg.AddColorStop(1, new Cairo.Color(base_color.R, base_color.G, base_color.B, 0.15));
cr.Pattern = rg;
cr.FillPreserve();
rg.Destroy();
// draw cpu indicator
rg = new RadialGradient(center, center, 0, center, center, center * RadiusPercent * radius);
rg.AddColorStop(0, new Cairo.Color(base_color.R, base_color.G, base_color.B, 1));
rg.AddColorStop(0.2, new Cairo.Color(base_color.R, base_color.G, base_color.B, 1));
rg.AddColorStop(1, new Cairo.Color(base_color.R, base_color.G, base_color.B, Math.Max(0, CPUUtilization * 1.3 - 1)));
cr.Pattern = rg;
cr.Fill();
rg.Destroy();
// draw highlight
cr.Arc(center, center * .8, center * .6, 0, Math.PI * 2);
LinearGradient lg = new LinearGradient(0, 0, 0, center);
lg.AddColorStop(0, new Cairo.Color(1, 1, 1, .35));
lg.AddColorStop(1, new Cairo.Color(1, 1, 1, 0));
cr.Pattern = lg;
cr.Fill();
lg.Destroy();
// draw outer circles
cr.LineWidth = 1;
cr.Arc(center, center, center * RadiusPercent, 0, Math.PI * 2);
cr.Color = new Cairo.Color(1, 1, 1, .75);
cr.Stroke();
cr.LineWidth = 1;
cr.Arc(center, center, center * RadiusPercent - 1, 0, Math.PI * 2);
cr.Color = new Cairo.Color(.8, .8, .8, .75);
cr.Stroke();
// draw memory indicate
cr.LineWidth = size / 32.0;
cr.ArcNegative(center, center, center * RadiusPercent - 1, Math.PI, Math.PI - Math.PI * (2 * MemoryUtilization));
cr.Color = new Cairo.Color(1, 1, 1, .8);
cr.Stroke();
}
void PaintBadgeSurface(DockySurface surface)
{
if (string.IsNullOrEmpty(BadgeText))
{
return;
}
int padding = 4;
int lineWidth = 2;
double size = (IsSmall ? 0.9 : 0.65) * Math.Min(surface.Width, surface.Height);
double x = surface.Width - size / 2;
double y = size / 2;
if (!IsSmall)
{
// draw outline shadow
surface.Context.LineWidth = lineWidth;
surface.Context.Color = new Cairo.Color(0, 0, 0, 0.5);
surface.Context.Arc(x, y + 1, size / 2 - lineWidth, 0, Math.PI * 2);
surface.Context.Stroke();
// draw filled gradient
RadialGradient rg = new RadialGradient(x, lineWidth, 0, x, lineWidth, size);
rg.AddColorStop(0, badgeColors [0]);
rg.AddColorStop(1.0, badgeColors [1]);
surface.Context.Pattern = rg;
surface.Context.Arc(x, y, size / 2 - lineWidth, 0, Math.PI * 2);
surface.Context.Fill();
rg.Destroy();
// draw outline
surface.Context.Color = new Cairo.Color(1, 1, 1, 1);
surface.Context.Arc(x, y, size / 2 - lineWidth, 0, Math.PI * 2);
surface.Context.Stroke();
surface.Context.LineWidth = lineWidth / 2;
surface.Context.Color = badgeColors [1];
surface.Context.Arc(x, y, size / 2 - 2 * lineWidth, 0, Math.PI * 2);
surface.Context.Stroke();
surface.Context.Color = new Cairo.Color(0, 0, 0, 0.2);
}
else
{
lineWidth = 0;
padding = 2;
}
using (Pango.Layout layout = DockServices.Drawing.ThemedPangoLayout())
{
layout.Width = Pango.Units.FromPixels(surface.Height / 2);
layout.Ellipsize = Pango.EllipsizeMode.None;
layout.FontDescription = new Gtk.Style().FontDescription;
layout.FontDescription.Weight = Pango.Weight.Bold;
Pango.Rectangle inkRect, logicalRect;
layout.FontDescription.AbsoluteSize = Pango.Units.FromPixels(surface.Height / 2);
layout.SetText(BadgeText);
layout.GetPixelExtents(out inkRect, out logicalRect);
size -= 2 * padding + 2 * lineWidth;
double scale = Math.Min(1, Math.Min(size / (double)logicalRect.Width, size / (double)logicalRect.Height));
if (!IsSmall)
{
surface.Context.Color = new Cairo.Color(0, 0, 0, 0.2);
}
else
{
surface.Context.Color = new Cairo.Color(0, 0, 0, 0.6);
x = surface.Width - scale * logicalRect.Width / 2;
y = scale * logicalRect.Height / 2;
}
surface.Context.MoveTo(x - scale * logicalRect.Width / 2, y - scale * logicalRect.Height / 2);
// draw text
surface.Context.Save();
if (scale < 1)
{
surface.Context.Scale(scale, scale);
}
surface.Context.LineWidth = 2;
Pango.CairoHelper.LayoutPath(surface.Context, layout);
surface.Context.StrokePreserve();
surface.Context.Color = new Cairo.Color(1, 1, 1, 1);
surface.Context.Fill();
surface.Context.Restore();
layout.FontDescription.Dispose();
layout.Context.Dispose();
}
}
protected override bool OnExposeEvent(EventExpose evnt)
{
if (!IsRealized)
{
return(false);
}
using (Cairo.Context cr = Gdk.CairoHelper.Create(evnt.Window)) {
cr.LineWidth = 1;
int x = Allocation.X;
int width = Allocation.Width;
int right = x + width;
int xMiddle = x + width / 2;
double yMiddle = Allocation.Y + Allocation.Height / 2.0;
if (!string.IsNullOrEmpty(title))
{
using (Pango.Layout layout = DockServices.Drawing.ThemedPangoLayout()) {
layout.SetText(title);
layout.Width = Pango.Units.FromPixels(Allocation.Width - Allocation.Height);
layout.FontDescription = Style.FontDescription;
layout.Ellipsize = Pango.EllipsizeMode.End;
layout.FontDescription.AbsoluteSize = Pango.Units.FromPixels(8);
layout.FontDescription.Weight = Pango.Weight.Bold;
Pango.Rectangle logical, ink;
layout.GetPixelExtents(out ink, out logical);
cr.MoveTo(Allocation.X + 2, Allocation.Y + (Allocation.Height - logical.Height) / 2);
Pango.CairoHelper.LayoutPath(cr, layout);
cr.Color = TextColor.SetAlpha(.6);
cr.Fill();
x += logical.Width + 5;
layout.Context.Dispose();
}
}
if (DrawLine)
{
cr.MoveTo(x, yMiddle);
cr.LineTo(right, yMiddle);
RadialGradient rg = new RadialGradient(
xMiddle,
yMiddle,
0,
xMiddle,
yMiddle,
width / 2);
rg.AddColorStop(0, new Cairo.Color(0, 0, 0, 0.4));
rg.AddColorStop(1, new Cairo.Color(0, 0, 0, 0));
cr.Pattern = rg;
cr.Stroke();
rg.Destroy();
cr.MoveTo(x, yMiddle + 1);
cr.LineTo(right, yMiddle + 1);
rg = new RadialGradient(
xMiddle,
yMiddle + 1,
0,
xMiddle,
yMiddle + 1,
width / 2);
rg.AddColorStop(0, new Cairo.Color(1, 1, 1, .4));
rg.AddColorStop(1, new Cairo.Color(1, 1, 1, 0));
cr.Pattern = rg;
cr.Stroke();
rg.Destroy();
}
(cr.Target as IDisposable).Dispose();
}
return(false);
}
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 (!Platform.IsMac && !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();
}
protected void OnExpose(object sender, ExposeEventArgs args)
{
using (Context cr = Gdk.CairoHelper.Create(GdkWindow)) {
var left = Allocation.Left;
var top = Allocation.Top;
var width = Allocation.Width;
var height = Allocation.Height;
var radius = barWidth / 2;
int bigRadius;
double fudgeFactor = -0.0125 * radius;
if (curveStyle == CurveStyle.HalfCurve)
{
bigRadius = height - radius - 2;
int originX = left + (width / 2);
int originY = top + height - radius;
cr.MoveTo(originX - bigRadius + barWidth, originY);
cr.Arc(originX - bigRadius + radius, originY, radius, 0, Math.PI);
cr.Arc(originX, originY, bigRadius, Math.PI, 0);
cr.Arc(originX + bigRadius - radius, originY, radius, 0, Math.PI);
cr.ArcNegative(originX, originY, bigRadius - barWidth + fudgeFactor, 0, Math.PI);
cr.ClosePath();
backgroundColor.SetSource(cr);
cr.Fill();
double r = ((1 - _progress) * -180.0).ToRadians();
double x2 = TouchGlobal.CalcX(originX, bigRadius - radius, r);
double y2 = TouchGlobal.CalcY(originY, bigRadius - radius, r);
cr.MoveTo(originX - bigRadius + barWidth, originY);
cr.Arc(originX - bigRadius + radius, originY, radius, 0, Math.PI);
cr.Arc(originX, originY, bigRadius, Math.PI, r);
cr.Arc(x2, y2, radius, r, r + Math.PI);
cr.ArcNegative(originX, originY, bigRadius - barWidth + fudgeFactor, r, Math.PI);
cr.LineTo(left, originY);
cr.ClosePath();
progressColor.SetSource(cr);
cr.Fill();
}
else if (curveStyle == CurveStyle.ThreeQuarterCurve)
{
int below = (0.45 * height).ToInt();
bigRadius = height - below - 2;
int originX = left + (width / 2);
int originY = top + height - below;
double x2 = TouchGlobal.CalcX(originX, bigRadius - radius, 3 * Math.PI / 4);
double y2 = TouchGlobal.CalcY(originY, bigRadius - radius, 3 * Math.PI / 4);
cr.MoveTo(x2, y2);
cr.Arc(x2, y2, radius, 7 * Math.PI / 4, 3 * Math.PI / 4);
cr.Arc(originX, originY, bigRadius, 3 * Math.PI / 4, Math.PI / 4);
x2 = TouchGlobal.CalcX(originX, bigRadius - radius, Math.PI / 4);
y2 = TouchGlobal.CalcY(originY, bigRadius - radius, Math.PI / 4);
cr.Arc(x2, y2, radius, Math.PI / 4, (-135.0).ToRadians());
cr.ArcNegative(originX, originY, bigRadius - barWidth + fudgeFactor, Math.PI / 4, 3 * Math.PI / 4);
cr.ClosePath();
backgroundColor.SetSource(cr);
cr.Fill();
double r = (_progress * 270.0 + 135.0).ToRadians();
x2 = TouchGlobal.CalcX(originX, bigRadius - radius, 3 * Math.PI / 4);
y2 = TouchGlobal.CalcY(originY, bigRadius - radius, 3 * Math.PI / 4);
cr.Arc(x2, y2, radius, 7 * Math.PI / 4, 3 * Math.PI / 4);
cr.Arc(originX, originY, bigRadius, 3 * Math.PI / 4, r);
x2 = TouchGlobal.CalcX(originX, bigRadius - radius, r);
y2 = TouchGlobal.CalcY(originY, bigRadius - radius, r);
cr.Arc(x2, y2, radius, r, r + Math.PI);
cr.ArcNegative(originX, originY, bigRadius - barWidth + fudgeFactor, r, 3 * Math.PI / 4);
var outlineColor = new TouchColor(progressColor);
outlineColor.ModifyColor(0.5);
var highlightColor = new TouchColor(progressColor);
highlightColor.ModifyColor(1.4);
var lowlightColor = new TouchColor(progressColor);
lowlightColor.ModifyColor(0.75);
var colorOriginX = TouchGlobal.CalcX(originX, bigRadius - 5, 11 * Math.PI / 8);
var colorOriginY = TouchGlobal.CalcY(originY, bigRadius - 5, 11 * Math.PI / 8);
using (var grad = new RadialGradient(colorOriginX, colorOriginY, 0, colorOriginX, colorOriginY, (bigRadius - 5) * 2)) {
grad.AddColorStop(0, highlightColor.ToCairoColor());
grad.AddColorStop(0.35, progressColor.ToCairoColor());
grad.AddColorStop(0.75, lowlightColor.ToCairoColor());
cr.SetSource(grad);
cr.FillPreserve();
}
outlineColor.SetSource(cr);
cr.LineWidth = 1;
cr.Stroke();
}
}
}
