void DrawShadow(Cairo.Context ctx, Gdk.Rectangle ar, PositionType pos, List <Section> secs)
{
foreach (Section s in secs)
{
Cairo.Gradient pat = null;
Gdk.Rectangle r = ar;
switch (pos)
{
case PositionType.Top:
r.Height = shadowSize > r.Height ? r.Height / 2 : shadowSize;
r.X += s.Offset;
r.Width = s.Size;
pat = new Cairo.LinearGradient(r.X, r.Y, r.X, r.Bottom);
break;
case PositionType.Bottom:
r.Y = r.Bottom - shadowSize;
r.Height = shadowSize > r.Height ? r.Height / 2 : shadowSize;
r.X = r.X + s.Offset;
r.Width = s.Size;
pat = new Cairo.LinearGradient(r.X, r.Bottom, r.X, r.Y);
break;
case PositionType.Left:
r.Width = shadowSize > r.Width ? r.Width / 2 : shadowSize;
r.Y += s.Offset;
r.Height = s.Size;
pat = new Cairo.LinearGradient(r.X, r.Y, r.Right, r.Y);
break;
case PositionType.Right:
r.X = r.Right - shadowSize;
r.Width = shadowSize > r.Width ? r.Width / 2 : shadowSize;
r.Y += s.Offset;
r.Height = s.Size;
pat = new Cairo.LinearGradient(r.Right, r.Y, r.X, r.Y);
break;
}
Cairo.Color c = GtkUtil.ToCairoColor(darkColor);
pat.AddColorStop(0, c);
c.A = 0;
pat.AddColorStop(1, c);
ctx.NewPath();
ctx.Rectangle(r.X, r.Y, r.Width, r.Height);
ctx.Pattern = pat;
ctx.Fill();
pat.Destroy();
}
}
protected override bool OnLeaveNotifyEvent(Gdk.EventCrossing evnt)
{
MouseIsOver = false;
GtkUtil.HideTooltip(tree);
return(base.OnLeaveNotifyEvent(evnt));
}
public void DrawBackground(Gtk.Widget w, Gdk.Rectangle allocation)
{
if (shadowSize == 0)
{
Gdk.Rectangle wr = new Gdk.Rectangle(allocation.X, allocation.Y, allocation.Width, allocation.Height);
using (Cairo.Context ctx = Gdk.CairoHelper.Create(w.GdkWindow)) {
ctx.Rectangle(wr.X, wr.Y, wr.Width, wr.Height);
ctx.Color = GtkUtil.ToCairoColor(lightColor);
ctx.Fill();
}
return;
}
List <Section> secsT = new List <Section> ();
List <Section> secsB = new List <Section> ();
List <Section> secsR = new List <Section> ();
List <Section> secsL = new List <Section> ();
int x, y;
w.GdkWindow.GetOrigin(out x, out y);
Gdk.Rectangle rect = new Gdk.Rectangle(x + allocation.X, y + allocation.Y, allocation.Width, allocation.Height);
Section s = new Section();
s.Size = rect.Width;
secsT.Add(s);
secsB.Add(s);
s.Size = rect.Height;
secsL.Add(s);
secsR.Add(s);
foreach (var rects in allocations)
{
int sx, sy;
rects.Key.GdkWindow.GetOrigin(out sx, out sy);
foreach (Gdk.Rectangle srt in rects.Value)
{
if (srt == rect)
{
continue;
}
Gdk.Rectangle sr = srt;
sr.Offset(sx, sy);
if (sr.Right == rect.X)
{
RemoveSection(secsL, sr.Y - rect.Y, sr.Height);
}
if (sr.Bottom == rect.Y)
{
RemoveSection(secsT, sr.X - rect.X, sr.Width);
}
if (sr.X == rect.Right)
{
RemoveSection(secsR, sr.Y - rect.Y, sr.Height);
}
if (sr.Y == rect.Bottom)
{
RemoveSection(secsB, sr.X - rect.X, sr.Width);
}
}
}
Gdk.Rectangle r = new Gdk.Rectangle(allocation.X, allocation.Y, allocation.Width, allocation.Height);
using (Cairo.Context ctx = Gdk.CairoHelper.Create(w.GdkWindow)) {
ctx.Rectangle(r.X, r.Y, r.Width, r.Height);
ctx.Color = GtkUtil.ToCairoColor(lightColor);
ctx.Fill();
DrawShadow(ctx, r, PositionType.Left, secsL);
DrawShadow(ctx, r, PositionType.Top, secsT);
DrawShadow(ctx, r, PositionType.Right, secsR);
DrawShadow(ctx, r, PositionType.Bottom, secsB);
}
}
