Hey,
I have attached a small cell renderer which overrides Render and simply
paints a red rectangle(but you will have to change the file to override
Render, not OnRender).
If you need a click event, you have to override OnActivate, which isn't
supported yet. I'm working on a patch to implement that and will write a
mail to the list when I'm done.
Christian
Jir(í Zárevúcký wrote:
There are some methods for drawing in Gdk.Drawable (parent class of
Gdk.Window, which is passed as a parameter to the Render method).
2009/2/11 dabatla <daba...@gmail.com>:
Hi, I would like to create CellRendererPixBuf -like cell renderer, but I also
need a click/toggle event on it. I believe the way to proceed is to device
from CellRendererToggle and then just to override the Render(..) method, but
my problem is that I have no clue on how to render the icon or stock item i
need in there.
I'm sure there is a simple way, it just seems that I can't figure it out :-(
please help
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using System;
namespace PixbufOverride
{
public class TestRenderer : Gtk.CellRenderer
{
public TestRenderer() {
this.Mode = Gtk.CellRendererMode.Activatable;
GLib.GType MyType = GLib.GType.Object;
System.Console.WriteLine(this.TypeName);
// System.Console.WriteLine((this as Gtk.CellRenderer).Activate(Gdk.EventHelper.New(Gdk.EventType.ButtonPress), null, "0", new Gdk.Rectangle(0, 0, 2, 2), new Gdk.Rectangle(0, 0, 1, 1), Gtk.CellRendererState.Selected));
}
protected override void OnGetSize (Gtk.Widget widget, ref Gdk.Rectangle cell_area, out int x_offset, out int y_offset, out int width, out int height)
{
System.Console.WriteLine ("GetSize called");
base.GetSize (widget, ref cell_area, out x_offset, out y_offset, out width, out height);
cell_area = new Gdk.Rectangle (0, 0, 1, 1);
x_offset = 0;
y_offset = 0;
width = 30;
height = 30;
}
protected override void OnRender (Gdk.Drawable window, Gtk.Widget widget, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, Gdk.Rectangle expose_area, Gtk.CellRendererState flags)
{
System.Console.WriteLine ("Render called");
Cairo.Context DrawingContext = Gdk.CairoHelper.Create(window);
DrawingContext.Color = new Cairo.Color(255, 0, 0);
DrawingContext.Rectangle(cell_area.X, cell_area.Y, cell_area.Width, cell_area.Height);
DrawingContext.Fill();
(DrawingContext.Target as System.IDisposable).Dispose();
(DrawingContext as System.IDisposable).Dispose();
}
protected override System.Boolean OnActivate(Gdk.Event evnt, Gtk.Widget widget, System.String path, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, Gtk.CellRendererState flags) {
System.Console.WriteLine("I was activated! returned value of Gtk.CellRenderer: {0}", base.OnActivate(evnt, widget, path, background_area, cell_area, flags));
return true;
}
}
}
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