GtkSharp/sample/GtkDemo/DemoMenus.cs
Dan Winship 246d4e1620 * samples/GtkDemo/*.cs: General fixup and cleanup; Remove some
gratuitous differences from the C version. Make comment and indent
	style consistent. Don't use "this." where not needed. Override
	OnDeleteEvent rather than connecting one's own DeleteEvent signal.

	* sample/GtkDemo/DemoApplicationWindow.cs (static
	DemoApplicationWindow): register the Gtk logo icon with
	StockManager so it shows up correctly in the toolbar.
	(AddActions): Register the radio items as radio items so they work
	right.

	* sample/GtkDemo/DemoHyperText.cs (EventAfter): handle
	link-clicking from Widget.WidgetEventAfter (as in the C version),
	rather than ButtonRelease, now that WidgetEventAfter is wrapped.

	* sample/GtkDemo/DemoImages.cs (DemoImages): use
	Gtk.Image.LoadFromResource (particularly to make the animation
	work right).
	(OnDestroyed): handle clean up (remove the timeout, etc)

	* sample/GtkDemo/DemoMain.cs (LoadStream): Fix handling of blank
	lines and whitespace to match the C version.

	* sample/GtkDemo/DemoPixbuf.cs (Expose): Use
	System.Runtime.InteropServices.Marshal.Copy() to copy
	pixbuf.Pixels to pass to DrawRgbImageDithalign, to make this more
	like the C version (and probably faster?)
	(timeout): Remove the FIXME since it seems to work now

	* sample/GtkDemo/DemoStockBrowser.cs: Simplify a bunch. Use
	reflection to get the C# names of the stock icons rather than
	trying to correctly re-mangle the ids. Display the Label with the
	accelerator underlined.

	* sample/GtkDemo/DemoTextView.cs (AttachWidgets): use
	Gtk.Image.LoadFromResource, so the image is properly loaded as an
	animation, not a static image. Don't set the combobox's "Active"
	property (for consistency with the C version).
	(InsertText): Fix miscellaneous differences with the C version.
	Remove some leftover cruft from earlier workarounds for gtk# bugs.

	* sample/GtkDemo/DemoTreeStore.cs (AddColumns): Make this more
	like the C version so the checkboxes are sensitized and hidden
	correctly on a per-row basis.

	* sample/GtkDemo/DemoUIManager.cs: Make the radio menu items work.

	* sample/GtkDemo/README: 
	* sample/GtkDemo/TODO: update

svn path=/trunk/gtk-sharp/; revision=42481
2005-04-01 21:08:14 +00:00

112 lines
3 KiB
C#

/* Menus
*
* There are several widgets involved in displaying menus. The MenuBar
* widget is a horizontal menu bar, which normally appears at the top
* of an application. The Menu widget is the actual menu that pops up.
* Both MenuBar and Menu are subclasses of MenuShell; a MenuShell
* contains menu items (MenuItem). Each menu item contains text and/or
* images and can be selected by the user.
*
* There are several kinds of menu item, including plain MenuItem,
* CheckMenuItem which can be checked/unchecked, RadioMenuItem which
* is a check menu item that's in a mutually exclusive group,
* SeparatorMenuItem which is a separator bar, TearoffMenuItem which
* allows a Menu to be torn off, and ImageMenuItem which can place a
* Image or other widget next to the menu text.
*
* A MenuItem can have a submenu, which is simply a Menu to pop up
* when the menu item is selected. Typically, all menu items in a menu
* bar have submenus.
*
* UIManager provides a higher-level interface for creating menu bars
* and menus; while you can construct menus manually, most people
* don't do that. There's a separate demo for UIManager.
*
*/
using System;
using Gtk;
namespace GtkDemo
{
[Demo ("Menus", "DemoMenus.cs")]
public class DemoMenus : Gtk.Window
{
public DemoMenus () : base ("Menus")
{
AccelGroup accel_group = new AccelGroup ();
AddAccelGroup (accel_group);
VBox box1 = new VBox (false, 0);
Add (box1);
MenuBar menubar = new MenuBar ();
box1.PackStart (menubar, false, true, 0);
MenuItem menuitem = new MenuItem ("test\nline2");
menuitem.Submenu = CreateMenu (2, true);
menubar.Append (menuitem);
MenuItem menuitem1 = new MenuItem ("foo");
menuitem1.Submenu = CreateMenu (3, true);
menubar.Append (menuitem1);
menuitem = new MenuItem ("bar");
menuitem.Submenu = CreateMenu (4, true);
menuitem.RightJustified = true;
menubar.Append (menuitem);
VBox box2 = new VBox (false, 10);
box2.BorderWidth = 10;
box1.PackStart (box2, false, true, 0);
Button close = new Button ("close");
close.Clicked += new EventHandler (CloseClicked);
box2.PackStart (close, true, true, 0);
close.CanDefault = true;
close.GrabDefault ();
ShowAll ();
}
private Menu CreateMenu (int depth, bool tearoff)
{
if (depth < 1)
return null;
Menu menu = new Menu ();
GLib.SList group = new GLib.SList (IntPtr.Zero);
if (tearoff) {
TearoffMenuItem menuitem = new TearoffMenuItem ();
menu.Append (menuitem);
}
for (int i = 0, j = 1; i < 5; i++, j++) {
RadioMenuItem menuitem = new RadioMenuItem (group, String.Format ("item {0} - {1}", depth, j));
group = menuitem.Group;
menu.Append (menuitem);
if (i == 3)
menuitem.Sensitive = false;
menuitem.Submenu = CreateMenu ((depth - 1), true);
}
return menu;
}
private void CloseClicked (object o, EventArgs args)
{
Destroy ();
}
protected override bool OnDeleteEvent (Gdk.Event evt)
{
Destroy ();
return true;
}
}
}