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();
}
}
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);
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();
}
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();
}
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 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 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();
}
