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//
// TestColorSelection.cs
//
// Author: Duncan Mak (duncan@ximian.com)
//
// Copyright (C) 2002, Duncan Mak, Ximian Inc.
//
using System;
using System.Text;
using Gtk;
namespace WidgetViewer {
public class TestColorSelection
{
static ColorSelectionDialog window = null;
static Dialog dialog = null;
public static Gtk.Window Create ()
{
HBox options = new HBox (false, 0);
CheckButton check_button = null;
window = new ColorSelectionDialog ("Color selection dialog");
window.ColorSelection.HasOpacityControl = true;
window.ColorSelection.HasPalette = true;
window.SetDefaultSize (250, 200);
window.ContentArea.PackStart (options, false, false, 0);
window.ContentArea.BorderWidth = 10;
check_button = new CheckButton("Show Opacity");
check_button.Active = true;
options.PackStart (check_button, false, false, 0);
check_button.Toggled += new EventHandler (Opacity_Callback);
check_button = new CheckButton("Show Palette");
check_button.Active = true;
options.PackEnd (check_button, false, false, 0);
check_button.Toggled += new EventHandler (Palette_Callback);
window.ColorSelection.ColorChanged += new EventHandler (Color_Changed);
window.OkButton.Clicked += new EventHandler (Color_Selection_OK);
window.CancelButton.Clicked += new EventHandler (Color_Selection_Cancel);
options.ShowAll ();
return window;
}
static void Opacity_Callback (object o, EventArgs args)
{
window.ColorSelection.HasOpacityControl = ((ToggleButton )o).Active;
}
static void Palette_Callback (object o, EventArgs args)
{
window.ColorSelection.HasPalette = ((ToggleButton )o).Active;
}
static string HexFormat (Gdk.RGBA color)
{
StringBuilder s = new StringBuilder ();
double[] vals = { color.Red, color.Green, color.Blue };
char[] hexchars = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F'};
s.Append ('#');
foreach (double val in vals) {
/* Convert to a range of 0-255, then lookup the
* digit for each half-byte */
byte rounded = (byte) (val * 255);
s.Append (hexchars[(rounded & 0xf0) >> 4]);
s.Append (hexchars[rounded & 0x0f]);
}
return s.ToString ();
}
static void Color_Changed (object o, EventArgs args)
{
Gdk.RGBA color = window.ColorSelection.CurrentRgba;
Console.WriteLine (HexFormat (color));
}
static void Color_Selection_OK (object o, EventArgs args)
{
Gdk.RGBA selected = window.ColorSelection.CurrentRgba;
window.Hide ();
Display_Result (selected);
}
static void Color_Selection_Cancel (object o, EventArgs args)
{
window.Destroy ();
}
static void Dialog_Ok (object o, EventArgs args)
{
dialog.Destroy ();
window.ShowAll ();
}
static void Display_Result (Gdk.RGBA color)
{
dialog = new Dialog ();
dialog.Title = "Selected Color: " + HexFormat (color);
DrawingArea da = new DrawingArea ();
da.OverrideBackgroundColor (StateFlags.Normal, color);
dialog.ContentArea.BorderWidth = 10;
dialog.ContentArea.PackStart (da, true, true, 10);
dialog.SetDefaultSize (200, 200);
Button button = new Button (Stock.Ok);
button.Clicked += new EventHandler (Dialog_Ok);
button.CanDefault = true;
dialog.ActionArea.PackStart (button, true, true, 0);
button.GrabDefault ();
dialog.ShowAll ();
}
static void Close_Button (object o, EventArgs args)
{
Color_Selection_Cancel (o, args);
}
}
}
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