GtkSharp/gtk/Widget.custom

//
// Gtk.Widget.custom - Gtk Widget class customizations
//
// Author: Rachel Hestilow <hestilow@ximian.com> 
//
// Copyright (C) 2002 Rachel Hestilow 
//
// This code is inserted after the automatically generated code.
//
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the Lesser GNU General 
// Public License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.

[Obsolete]		
protected Widget (GLib.GType gtype) : base(gtype)
{
	ParentSet += new ParentSetHandler (Widget_ParentSet);
}

[DllImport("libgtk-win32-2.0-0.dll")]
static extern void gtk_widget_destroy (IntPtr raw);

public override void Destroy ()
{
	gtk_widget_destroy (Handle);
}

protected override void CreateNativeObject (string[] names, GLib.Value[] vals)
{
	base.CreateNativeObject (names, vals);
	ParentSet += new ParentSetHandler (Widget_ParentSet);
}

private static Hashtable ParentedWidgets = new Hashtable ();

private void Widget_ParentSet (object o, ParentSetArgs args)
{
	if (Parent != null && args.PreviousParent == null)
		ParentedWidgets[this] = this;
	else if (Parent == null && args.PreviousParent != null)
		ParentedWidgets.Remove (this);
}

[DllImport("gtksharpglue-2")]
static extern IntPtr gtksharp_gtk_widget_get_allocation (IntPtr style);

[DllImport("gtksharpglue-2")]
static extern void gtksharp_gtk_widget_set_allocation (IntPtr raw, Gdk.Rectangle rect);

public Gdk.Rectangle Allocation {
	get { return Gdk.Rectangle.New (gtksharp_gtk_widget_get_allocation (Handle)); }
	set { gtksharp_gtk_widget_set_allocation (Handle, value); }
}


[DllImport ("gtksharpglue-2")]
static extern IntPtr gtksharp_gtk_widget_get_window (IntPtr widget);
[DllImport ("gtksharpglue-2")]
static extern void gtksharp_gtk_widget_set_window (IntPtr widget, IntPtr window);
public Gdk.Window GdkWindow {
	get {
		IntPtr raw_ret = gtksharp_gtk_widget_get_window (Handle);

		if (raw_ret != (IntPtr) 0){
	 		Gdk.Window ret = (Gdk.Window) GLib.Object.GetObject(raw_ret, false);
			return ret;
		}
		return null;
	}
	set {
		Gdk.Window window = value as Gdk.Window;
		gtksharp_gtk_widget_set_window (Handle, window.Handle);
	}
}

public void AddAccelerator (string accel_signal, AccelGroup accel_group, AccelKey accel_key)
{
	this.AddAccelerator (accel_signal, accel_group, (uint) accel_key.Key, accel_key.AccelMods, accel_key.AccelFlags);

}

[DllImport("libgtk-win32-2.0-0.dll")]
static extern void gtk_widget_set_state (IntPtr raw, int state);

[DllImport("gtksharpglue-2")]
static extern int gtksharp_gtk_widget_get_state (IntPtr raw);

public Gtk.StateType State {
	set {
		gtk_widget_set_state (Handle, (int) value);
	}
	get {
		return (Gtk.StateType) gtksharp_gtk_widget_get_state (Handle);
	}
}

[DllImport("gtksharpglue-2")]
static extern int gtksharp_gtk_widget_get_flags (IntPtr raw);

[DllImport("gtksharpglue-2")]
static extern void gtksharp_gtk_widget_set_flags (IntPtr raw, int flags);

[Obsolete]
public int Flags {
	get {
		return gtksharp_gtk_widget_get_flags (Handle);
	}
	set {
		gtksharp_gtk_widget_set_flags (Handle, (int) value);
	}
}

public WidgetFlags WidgetFlags {
	get {
		return (WidgetFlags) gtksharp_gtk_widget_get_flags (Handle);
	}
	set {
		gtksharp_gtk_widget_set_flags (Handle, (int) value);
	}
}

public void SetFlag (WidgetFlags flag)
{
	Flags |= (int)flag;
}

public void ClearFlag (WidgetFlags flag)
{
	Flags &= ~((int)flag);
}

public bool IsMapped {
	get {
		return ((Flags & (int)Gtk.WidgetFlags.Mapped) != 0);
	}
}

public bool IsRealized {
	get {
		return ((Flags & (int)Gtk.WidgetFlags.Realized) != 0);
	}
}

public bool IsNoWindow {
	get {
		return ((Flags & (int)Gtk.WidgetFlags.NoWindow) != 0);
	}
}

public bool IsTopLevel {
	get {
		return ((Flags & (int)Gtk.WidgetFlags.Toplevel) != 0);
	}
}

public bool HasGrab {
	get {
		return ((Flags & (int)Gtk.WidgetFlags.HasGrab) != 0);
	}
}

public bool IsCompositeChild {
	get {
		return ((Flags & (int)Gtk.WidgetFlags.CompositeChild) != 0);
	}
}

public bool IsAppPaintable {
	get {
		return ((Flags & (int)Gtk.WidgetFlags.AppPaintable) != 0);
	}
}

public bool IsDoubleBuffered {
	get {
		return ((Flags & (int)Gtk.WidgetFlags.DoubleBuffered) != 0);
	}
}


public bool IsDrawable {
	get {
		return (Visible && IsMapped);
	}
}

[DllImport("gtksharpglue-2")]
static extern int gtksharp_gtk_widget_style_get_int (IntPtr raw, string name);

public int FocusLineWidth {
	get {
		return gtksharp_gtk_widget_style_get_int (Handle, "focus-line-width");
	}
}

[DllImport("gtksharpglue-2")]
static extern int gtksharp_widget_connect_set_scroll_adjustments_signal (IntPtr gtype, SetScrollAdjustmentsDelegate cb);

delegate void SetScrollAdjustmentsDelegate (IntPtr widget, IntPtr hadj, IntPtr vadj);

static SetScrollAdjustmentsDelegate SetScrollAdjustmentsCallback;

static void SetScrollAdjustments_cb (IntPtr widget, IntPtr hadj, IntPtr vadj)
{
	Widget obj = GLib.Object.GetObject (widget, false) as Widget;
	Gtk.Adjustment h = GLib.Object.GetObject (hadj, false) as Gtk.Adjustment;
	Gtk.Adjustment v = GLib.Object.GetObject (vadj, false) as Gtk.Adjustment;
	obj.OnSetScrollAdjustments (h, v);
}

static void ConnectSetScrollAdjustments (GLib.GType gtype)
{
	if (SetScrollAdjustmentsCallback == null)
		SetScrollAdjustmentsCallback = new SetScrollAdjustmentsDelegate (SetScrollAdjustments_cb);
	gtksharp_widget_connect_set_scroll_adjustments_signal (gtype.Val, SetScrollAdjustmentsCallback);
}

[GLib.DefaultSignalHandler (Type=typeof (Gtk.Widget), ConnectionMethod="ConnectSetScrollAdjustments")]
protected virtual void OnSetScrollAdjustments (Gtk.Adjustment hadj, Gtk.Adjustment vadj)
{
}

private class BindingInvoker {
	System.Reflection.MethodInfo mi;
	object[] parms;

	public BindingInvoker (System.Reflection.MethodInfo mi, object[] parms)
	{
		this.mi = mi;
		this.parms = parms;
	}

	public void Invoke (Widget w)
	{
		mi.Invoke (w, parms);
	}
}

private delegate void BindingHandler (IntPtr handle, IntPtr user_data);

private static void BindingCallback (IntPtr handle, IntPtr user_data)
{
	Widget w = GLib.Object.GetObject (handle, false) as Widget;
	BindingInvoker invoker = ((GCHandle) user_data).Target as BindingInvoker;
	invoker.Invoke (w);
}

static BindingHandler binding_delegate;
static BindingHandler BindingDelegate {
	get {
		if (binding_delegate == null)
			binding_delegate = new BindingHandler (BindingCallback);
		return binding_delegate;
	}
}

[DllImport ("gtksharpglue-2")]
static extern void gtksharp_widget_add_binding_signal (IntPtr gvalue, string name, BindingHandler handler);

[DllImport ("gtksharpglue-2")]
static extern void gtksharp_widget_register_binding (IntPtr gvalue, string name, uint key, int mod, IntPtr data);

[GLib.ClassInitializer]
static void ClassInit (GLib.GType gtype, Type t)
{
	object[] attrs = t.GetCustomAttributes (typeof (BindingAttribute), true);

	if (attrs.Length == 0)
		return;

	string signame = t.Name.Replace (".", "_") + "_bindings";

	gtksharp_widget_add_binding_signal (gtype.Val, signame, BindingDelegate);

	foreach (BindingAttribute attr in attrs) {
		System.Reflection.MethodInfo mi = t.GetMethod (attr.Handler, System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Public);
		if (mi == null)
			throw new Exception ("Instance method " + attr.Handler + " not found in " + t);

		BindingInvoker inv = new BindingInvoker (mi, attr.Parms);
		gtksharp_widget_register_binding (gtype.Val, signame, (uint) attr.Key, (int) attr.Mod, (IntPtr) GCHandle.Alloc (inv));
	}
}