155 lines
4.1 KiB
C#
155 lines
4.1 KiB
C#
//
|
|
// DemoSizeGroup.cs
|
|
//
|
|
// Author: Duncan Mak (duncan@ximian.com)
|
|
//
|
|
// Copyright (C) 2002, Duncan Mak, Ximian Inc.
|
|
//
|
|
|
|
/* Size Groups
|
|
*
|
|
* SizeGroup provides a mechanism for grouping a number of
|
|
* widgets together so they all request the same amount of space.
|
|
* This is typically useful when you want a column of widgets to
|
|
* have the same size, but you can't use a Table widget.
|
|
*
|
|
* Note that size groups only affect the amount of space requested,
|
|
* not the size that the widgets finally receive. If you want the
|
|
* widgets in a SizeGroup to actually be the same size, you need
|
|
* to pack them in such a way that they get the size they request
|
|
* and not more. For example, if you are packing your widgets
|
|
* into a table, you would not include the Gtk.Fill flag.
|
|
*/
|
|
|
|
using System;
|
|
using Gtk;
|
|
|
|
namespace GtkDemo
|
|
{
|
|
public class DemoSizeGroup : Dialog
|
|
{
|
|
private SizeGroup sizeGroup;
|
|
|
|
public DemoSizeGroup ()
|
|
{
|
|
this.Title = "Size groups";
|
|
this.Resizable = false;
|
|
|
|
VBox vbox = new VBox (false, 5);
|
|
this.VBox.PackStart (vbox, true, true, 0);
|
|
vbox.BorderWidth = 5;
|
|
|
|
sizeGroup = new SizeGroup (SizeGroupMode.Horizontal);
|
|
|
|
//Create one frame holding color options
|
|
Frame frame = new Frame ("Color Options");
|
|
vbox.PackStart (frame, true, true, 0);
|
|
|
|
Table table = new Table (2, 2, false);
|
|
table.BorderWidth = 5;
|
|
table.RowSpacing = 5;
|
|
table.ColumnSpacing = 10;
|
|
frame.Add (table);
|
|
|
|
string [] colors = {"Red", "Green", "Blue", };
|
|
string [] dashes = {"Solid", "Dashed", "Dotted", };
|
|
string [] ends = {"Square", "Round", "Arrow", };
|
|
|
|
AddRow (table, 0, sizeGroup, "_Foreground", colors);
|
|
AddRow (table, 1, sizeGroup, "_Background", colors);
|
|
|
|
// And another frame holding line style options
|
|
frame = new Frame ("Line Options");
|
|
vbox.PackStart (frame, false, false, 0);
|
|
|
|
table = new Table (2, 2, false);
|
|
table.BorderWidth = 5;
|
|
table.RowSpacing = 5;
|
|
table.ColumnSpacing = 10;
|
|
frame.Add (table);
|
|
|
|
AddRow (table, 0, sizeGroup, "_Dashing", dashes);
|
|
AddRow (table, 1, sizeGroup, "_Line ends", ends);
|
|
|
|
// And a check button to turn grouping on and off
|
|
CheckButton checkButton = new CheckButton ("_Enable grouping");
|
|
vbox.PackStart (checkButton, false, false, 0);
|
|
checkButton.Active = true;
|
|
checkButton.Toggled += new EventHandler (ButtonToggleCb);
|
|
|
|
Button CloseButton = new Button (Stock.Close);
|
|
this.AddActionWidget (CloseButton, ResponseType.Close);
|
|
this.Response += new ResponseHandler (ResponseCallback);
|
|
|
|
this.ShowAll ();
|
|
}
|
|
|
|
// Convenience function to create an option menu holding a number of strings
|
|
private OptionMenu CreateOptionMenu (string [] strings)
|
|
{
|
|
Menu menu = new Menu ();
|
|
MenuItem menuItem;
|
|
|
|
foreach (string str in strings)
|
|
{
|
|
menuItem = new MenuItem (str);
|
|
menuItem.Show ();
|
|
menu.Append (menuItem);
|
|
}
|
|
|
|
OptionMenu optionMenu = new OptionMenu ();
|
|
optionMenu.Menu = menu;
|
|
|
|
return optionMenu;
|
|
}
|
|
|
|
private void AddRow (Table table, uint row, SizeGroup sizeGroup, string labelText, string [] options)
|
|
{
|
|
Label label = new Label (labelText);
|
|
label.SetAlignment (0, 1);
|
|
|
|
table.Attach (label,
|
|
0, 1, row, row + 1,
|
|
AttachOptions.Expand, AttachOptions.Fill,
|
|
0, 0);
|
|
|
|
OptionMenu optionMenu = CreateOptionMenu (options);
|
|
|
|
sizeGroup.AddWidget (optionMenu);
|
|
table.Attach (optionMenu,
|
|
1, 2, row, row + 1,
|
|
AttachOptions.Expand, AttachOptions.Expand,
|
|
0, 0);
|
|
}
|
|
|
|
private void ButtonToggleCb (object o, EventArgs args)
|
|
{
|
|
ToggleGrouping ((ToggleButton) o, sizeGroup);
|
|
}
|
|
|
|
// SizeGroupMode.None is not generally useful, but is useful
|
|
// here to show the effect of SizeGroupMode.Horizontal by
|
|
// contrast
|
|
|
|
private void ToggleGrouping (ToggleButton checkButton, SizeGroup sizeGroup)
|
|
{
|
|
SizeGroupMode mode;
|
|
|
|
if (checkButton.Active)
|
|
mode = SizeGroupMode.Horizontal;
|
|
else
|
|
mode = SizeGroupMode.None;
|
|
|
|
sizeGroup.Mode = mode;
|
|
}
|
|
|
|
private void ResponseCallback (object obj, ResponseArgs args)
|
|
{
|
|
if ((args.ResponseId) == ResponseType.Close) {
|
|
this.Hide ();
|
|
this.Destroy ();
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|