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 ();
}
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 ();
}
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 ();
}
}
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;
}
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 ();
}
public override void Render (CellContext context)
{
if (inner_allocation.IsEmpty) {
return;
}
// Need to call this again here to make sure we have the latest artwork
var album = BoundObject as AlbumInfo;
if (album != null) {
image_surface = artwork_manager != null
? artwork_manager.LookupScaleSurface (album.ArtworkId, (int)ImageSize, true)
: null;
}
context.Context.Translate (inner_allocation.X, inner_allocation.Y);
RenderImageSurface (context, image_allocation, image_surface);
// Render the overlay
if (IsGridLayout && prelight_opacity > 0) {
var cr = context.Context;
var x = image_allocation.Width / 2.0;
var y = image_allocation.Height / 2.0;
var grad = new RadialGradient (x, y, 0, x, y, x);
grad.AddColorStop (0, new Color (0, 0, 0, 0.1 * prelight_opacity));
grad.AddColorStop (1, new Color (0, 0, 0, 0.35 * prelight_opacity));
cr.Pattern = grad;
CairoExtensions.RoundedRectangle (cr, image_allocation.X, image_allocation.Y,
image_allocation.Width, image_allocation.Height, context.Theme.Context.Radius);
cr.Fill ();
grad.Destroy ();
/*cr.Save ();
cr.LineWidth = 2;
cr.Antialias = Cairo.Antialias.Default;
// math prep for rendering multiple controls...
double max_controls = 3;
double spacing = 4;
double radius = (width - ((max_controls + 1) * spacing)) / max_controls / 2;
// render first control
cr.Arc (width / 2, height - radius - 2 * spacing, radius, 0, 2 * Math.PI);
cr.Color = new Color (0, 0, 0, 0.4);
cr.FillPreserve ();
cr.Color = new Color (1, 1, 1, 0.8);
cr.Stroke ();
cr.Restore ();*/
}
if (lines == null || lines.Length < 2) {
return;
}
var text_color = context.Theme.Colors.GetWidgetColor (GtkColorClass.Text, context.State);
var layout = context.Layout;
layout.Ellipsize = Pango.EllipsizeMode.End;
layout.Width = (int)(first_line_allocation.Width * Pango.Scale.PangoScale);
int normal_size = layout.FontDescription.Size;
int small_size = (int)(normal_size * Pango.Scale.Small);
if (!String.IsNullOrEmpty (lines[0])) {
layout.FontDescription.Size = small_size;
layout.SetText (lines[0]);
context.Context.Color = text_color;
context.Context.MoveTo (first_line_allocation.X, first_line_allocation.Y);
PangoCairoHelper.ShowLayout (context.Context, layout);
}
if (!String.IsNullOrEmpty (lines[1])) {
layout.FontDescription.Weight = Pango.Weight.Normal;
layout.FontDescription.Size = small_size;
layout.SetText (lines[1]);
text_color.A = 0.60;
context.Context.Color = text_color;
context.Context.MoveTo (second_line_allocation.X, second_line_allocation.Y);
PangoCairoHelper.ShowLayout (context.Context, layout);
}
layout.FontDescription.Size = normal_size;
}
DockySurface CreateUrgentGlowBuffer ()
{
// FIXME: create gconf value
Gdk.Color gdkColor = Style.Backgrounds [(int) StateType.Selected].SetMinimumValue (90);
Cairo.Color color = new Cairo.Color ((double) gdkColor.Red / ushort.MaxValue,
(double) gdkColor.Green / ushort.MaxValue,
(double) gdkColor.Blue / ushort.MaxValue,
1.0);
color = color.AddHue (DockServices.Theme.UrgentHueShift).SetSaturation (1);
int size = (int) 2.5 * IconSize;
DockySurface surface = new DockySurface (size, size, background_buffer);
surface.Clear ();
Cairo.Context cr = surface.Context;
double x = size / 2;
double y = x;
cr.MoveTo (x, y);
cr.Arc (x, y, size / 2, 0, Math.PI * 2);
RadialGradient rg = new RadialGradient (x, y, 0, x, y, size / 2);
rg.AddColorStop (0, new Cairo.Color (1, 1, 1, 1));
rg.AddColorStop (.33, color.SetAlpha (.66));
rg.AddColorStop (.66, color.SetAlpha (.33));
rg.AddColorStop (1.0, color.SetAlpha (0.0));
cr.Pattern = rg;
cr.Fill ();
rg.Destroy ();
return surface;
}
DockySurface CreateIndicatorBuffer (int size, Cairo.Color color)
{
DockySurface surface = new DockySurface (size, size, background_buffer);
surface.Clear ();
Cairo.Context cr = surface.Context;
double x = size / 2;
double y = x;
cr.MoveTo (x, y);
cr.Arc (x, y, size / 2, 0, Math.PI * 2);
RadialGradient rg = new RadialGradient (x, y, 0, x, y, size / 2);
rg.AddColorStop (0, new Cairo.Color (1, 1, 1, 1));
rg.AddColorStop (.10, color.SetAlpha (1.0));
rg.AddColorStop (.20, color.SetAlpha (.60));
rg.AddColorStop (.25, color.SetAlpha (.25));
rg.AddColorStop (.50, color.SetAlpha (.15));
rg.AddColorStop (1.0, color.SetAlpha (0.0));
cr.Pattern = rg;
cr.Fill ();
rg.Destroy ();
return surface;
}
/// <summary>Draws an application button.</summary>
public void DrawApplicationButton(Context cr, Gdk.Rectangle bodyAllocation, ButtonState state, double lineWidth, BaseButton widget)
{
const double dropShadowOffset = 1;
double radius = (bodyAllocation.Height - dropShadowOffset) / 2;
double x = bodyAllocation.X + radius + dropShadowOffset;
double y = bodyAllocation.Y + radius + dropShadowOffset;
cr.Arc (x, y, radius, 0, 2 * Math.PI);
cr.Color = new Color (0, 0, 0, 0.5);
cr.Fill ();
cr.Arc (bodyAllocation.X + radius, bodyAllocation.Y + radius, radius, 0, 2 * Math.PI);
switch(state)
{
case ButtonState.Hover:
cr.Color = new Color (0.9, 0.815, 0.533);
break;
case ButtonState.Pressed:
cr.Color = new Color (0.886, 0.639, 0.356);
break;
default:
cr.Color = new Color (0.8, 0.8, 0.8);
break;
}
cr.Fill ();
cr.Arc (bodyAllocation.X + radius, bodyAllocation.Y + radius, radius, 0, 2 * Math.PI);
LinearGradient linGrad = new LinearGradient (0, bodyAllocation.Y, 0, bodyAllocation.Y + bodyAllocation.Height);
linGrad.AddColorStop (0.0, new Color (1, 1, 1, 0.9));
linGrad.AddColorStop (0.5, new Color (1, 1, 1, 0.0));
linGrad.AddColorStop (1.0, new Color (1, 1, 1, 1.0));
cr.Pattern = linGrad;
cr.Fill ();
linGrad.Destroy ();
cr.Arc (bodyAllocation.X + radius, bodyAllocation.Y + radius, radius, 0, 2 * Math.PI);
linGrad = new LinearGradient (0, bodyAllocation.Y, 0, bodyAllocation.Y + bodyAllocation.Height);
linGrad.AddColorStop (0.0, new Color (0, 0, 0, 0.0));
linGrad.AddColorStop (0.4, new Color (0, 0, 0, 0.0));
linGrad.AddColorStop (0.5, new Color (0, 0, 0, 0.1));
linGrad.AddColorStop (0.75, new Color (0, 0, 0, 0.0));
linGrad.AddColorStop (1.0, new Color (0, 0, 0, 0.0));
cr.Pattern = linGrad;
cr.Fill ();
linGrad.Destroy ();
cr.Arc (bodyAllocation.X + radius, bodyAllocation.Y + radius, radius, 0, Math.PI);
linGrad = new LinearGradient (0, bodyAllocation.Y + radius, 0, bodyAllocation.Y + bodyAllocation.Height);
linGrad.AddColorStop (0.0, new Color (0, 0, 0, 0.0));
linGrad.AddColorStop (1.0, new Color (0, 0, 0, 0.5));
cr.Pattern = linGrad;
cr.LineWidth = 1.0;
cr.Stroke ();
linGrad.Destroy ();
cr.Arc (bodyAllocation.X + radius, bodyAllocation.Y + radius, radius, Math.PI, 0);
linGrad = new LinearGradient (0, bodyAllocation.Y, 0, bodyAllocation.Y + radius);
linGrad.AddColorStop (0.0, new Color (1, 1, 1, 0.5));
linGrad.AddColorStop (1.0, new Color (1, 1, 1, 0.0));
cr.LineWidth = 1.0;
cr.Stroke ();
linGrad.Destroy ();
cr.Arc (bodyAllocation.X + radius, bodyAllocation.Y + radius, radius, 0, 2 * Math.PI);
RadialGradient radGrad = new RadialGradient (bodyAllocation.X + radius, bodyAllocation.Y + 1.5 * radius, 0, bodyAllocation.X + radius, bodyAllocation.Y + 1.5 * radius, 0.5 * radius);
radGrad.AddColorStop (0, new Color (1, 1, 1, 0.4));
radGrad.AddColorStop (1, new Color (1, 1, 1, 0.0));
cr.Pattern = radGrad;
cr.Fill ();
radGrad.Destroy ();
}
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 ();
}
