mirror of
https://github.com/Ryujinx/GtkSharp.git
synced 2024-12-25 09:45:28 +00:00
407 lines
14 KiB
C#
407 lines
14 KiB
C#
//
|
|
// Gtk.Widget.cs - Gtk Widget class customizations
|
|
//
|
|
// Authors: Rachel Hestilow <hestilow@ximian.com>,
|
|
// Brad Taylor <brad@getcoded.net>
|
|
//
|
|
// Copyright (C) 2007 Brad Taylor
|
|
// Copyright (C) 2002 Rachel Hestilow
|
|
//
|
|
// 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.
|
|
|
|
namespace Gtk {
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Runtime.InteropServices;
|
|
|
|
public partial class Widget {
|
|
|
|
[Obsolete ("Replaced by Window property.")]
|
|
public Gdk.Window GdkWindow {
|
|
get { return Window; }
|
|
set { Window = value; }
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
public int FocusLineWidth {
|
|
get {
|
|
return (int) StyleGetProperty ("focus-line-width");
|
|
}
|
|
}
|
|
|
|
struct GClosure {
|
|
long fields;
|
|
IntPtr marshaler;
|
|
IntPtr data;
|
|
IntPtr notifiers;
|
|
}
|
|
|
|
[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
|
|
delegate void ClosureMarshal (IntPtr closure, IntPtr return_val, uint n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data);
|
|
|
|
[DllImport ("libgobject-2.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
|
|
static extern IntPtr g_closure_new_simple (int closure_size, IntPtr dummy);
|
|
|
|
[DllImport ("libgobject-2.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
|
|
static extern void g_closure_set_marshal (IntPtr closure, ClosureMarshal marshaler);
|
|
|
|
static IntPtr CreateClosure (ClosureMarshal marshaler) {
|
|
IntPtr raw_closure = g_closure_new_simple (Marshal.SizeOf (typeof (GClosure)), IntPtr.Zero);
|
|
g_closure_set_marshal (raw_closure, marshaler);
|
|
return raw_closure;
|
|
}
|
|
|
|
[DllImport ("libgobject-2.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
|
|
static extern uint g_signal_newv (IntPtr signal_name, IntPtr gtype, GLib.Signal.Flags signal_flags, IntPtr closure, IntPtr accumulator, IntPtr accu_data, IntPtr c_marshaller, IntPtr return_type, uint n_params, [MarshalAs (UnmanagedType.LPArray)] IntPtr[] param_types);
|
|
|
|
static uint RegisterSignal (string signal_name, GLib.GType gtype, GLib.Signal.Flags signal_flags, GLib.GType return_type, GLib.GType[] param_types, ClosureMarshal marshaler)
|
|
{
|
|
IntPtr[] native_param_types = new IntPtr [param_types.Length];
|
|
for (int parm_idx = 0; parm_idx < param_types.Length; parm_idx++)
|
|
native_param_types [parm_idx] = param_types [parm_idx].Val;
|
|
|
|
IntPtr native_signal_name = GLib.Marshaller.StringToPtrGStrdup (signal_name);
|
|
try {
|
|
return g_signal_newv (native_signal_name, gtype.Val, signal_flags, CreateClosure (marshaler), IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, return_type.Val, (uint) param_types.Length, native_param_types);
|
|
} finally {
|
|
GLib.Marshaller.Free (native_signal_name);
|
|
}
|
|
}
|
|
|
|
static void ActivateMarshal_cb (IntPtr raw_closure, IntPtr return_val, uint n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
|
|
{
|
|
try {
|
|
GLib.Value inst_val = (GLib.Value) Marshal.PtrToStructure (param_values, typeof (GLib.Value));
|
|
Widget inst;
|
|
try {
|
|
inst = inst_val.Val as Widget;
|
|
} catch (GLib.MissingIntPtrCtorException) {
|
|
return;
|
|
}
|
|
inst.OnActivate ();
|
|
} catch (Exception e) {
|
|
GLib.ExceptionManager.RaiseUnhandledException (e, false);
|
|
}
|
|
}
|
|
|
|
static ClosureMarshal ActivateMarshalCallback;
|
|
|
|
static void ConnectActivate (GLib.GType gtype)
|
|
{
|
|
if (ActivateMarshalCallback == null)
|
|
ActivateMarshalCallback = new ClosureMarshal (ActivateMarshal_cb);
|
|
|
|
GtkWidgetClass klass = GetClassStruct (gtype, false);
|
|
klass.ActivateSignal = RegisterSignal ("activate_signal", gtype, GLib.Signal.Flags.RunLast, GLib.GType.None, new GLib.GType [0], ActivateMarshalCallback);
|
|
OverrideClassStruct (gtype, klass);
|
|
}
|
|
|
|
[GLib.DefaultSignalHandler (Type=typeof (Gtk.Widget), ConnectionMethod="ConnectActivate")]
|
|
protected virtual void OnActivate ()
|
|
{
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
/* As gtk_binding_entry_add_signall only allows passing long, double and string parameters
|
|
* to the specified signal, we cannot pass a pointer to the BindingInvoker directly to the signal.
|
|
* Instead, the signal takes the index of the BindingInvoker in binding_invokers.
|
|
*/
|
|
static IList<BindingInvoker> binding_invokers;
|
|
|
|
static void BindingMarshal_cb (IntPtr raw_closure, IntPtr return_val, uint n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
|
|
{
|
|
try {
|
|
GLib.Value[] inst_and_params = new GLib.Value [n_param_vals];
|
|
int gvalue_size = Marshal.SizeOf (typeof (GLib.Value));
|
|
for (int idx = 0; idx < n_param_vals; idx++)
|
|
inst_and_params [idx] = (GLib.Value) Marshal.PtrToStructure (new IntPtr (param_values.ToInt64 () + idx * gvalue_size), typeof (GLib.Value));
|
|
|
|
Widget w = inst_and_params [0].Val as Widget;
|
|
BindingInvoker invoker = binding_invokers [(int) (long) inst_and_params [1]];
|
|
invoker.Invoke (w);
|
|
} catch (Exception e) {
|
|
GLib.ExceptionManager.RaiseUnhandledException (e, false);
|
|
}
|
|
}
|
|
|
|
static ClosureMarshal binding_delegate;
|
|
static ClosureMarshal BindingDelegate {
|
|
get {
|
|
if (binding_delegate == null)
|
|
binding_delegate = new ClosureMarshal (BindingMarshal_cb);
|
|
return binding_delegate;
|
|
}
|
|
}
|
|
|
|
[DllImport ("libgtk-win32-3.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
|
|
static extern IntPtr gtk_binding_set_by_class (IntPtr class_ptr);
|
|
|
|
[DllImport ("libgtk-win32-3.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
|
|
static extern void gtk_binding_entry_add_signall (IntPtr binding_set, uint keyval, Gdk.ModifierType modifiers, IntPtr signal_name, IntPtr binding_args);
|
|
|
|
[StructLayout(LayoutKind.Sequential)]
|
|
struct GtkBindingArg {
|
|
public IntPtr arg_type;
|
|
public GtkBindingArgData data;
|
|
}
|
|
|
|
[StructLayout(LayoutKind.Explicit)]
|
|
struct GtkBindingArgData {
|
|
#if WIN64LONGS
|
|
[FieldOffset (0)] public int long_data;
|
|
#else
|
|
[FieldOffset (0)] public IntPtr long_data;
|
|
#endif
|
|
[FieldOffset (0)] public double double_data;
|
|
[FieldOffset (0)] public IntPtr string_data;
|
|
}
|
|
|
|
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";
|
|
IntPtr native_signame = GLib.Marshaller.StringToPtrGStrdup (signame);
|
|
RegisterSignal (signame, gtype, GLib.Signal.Flags.RunLast | GLib.Signal.Flags.Action, GLib.GType.None, new GLib.GType[] {GLib.GType.Long}, BindingDelegate);
|
|
|
|
if (binding_invokers == null)
|
|
binding_invokers = new List<BindingInvoker> ();
|
|
|
|
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);
|
|
|
|
GtkBindingArg arg = new GtkBindingArg ();
|
|
arg.arg_type = GLib.GType.Long.Val;
|
|
|
|
var bi = new BindingInvoker (mi, attr.Parms);
|
|
binding_invokers.Add (bi);
|
|
int binding_invoker_idx = binding_invokers.IndexOf (bi);
|
|
#if WIN64LONGS
|
|
arg.data.long_data = binding_invoker_idx;
|
|
#else
|
|
arg.data.long_data = new IntPtr (binding_invoker_idx);
|
|
#endif
|
|
|
|
GLib.SList binding_args = new GLib.SList (new object[] {arg}, typeof (GtkBindingArg), false, false);
|
|
gtk_binding_entry_add_signall (gtk_binding_set_by_class (gtype.GetClassPtr ()), (uint) attr.Key, attr.Mod, native_signame, binding_args.Handle);
|
|
binding_args.Dispose ();
|
|
}
|
|
GLib.Marshaller.Free (native_signame);
|
|
}
|
|
|
|
public object StyleGetProperty (string property_name)
|
|
{
|
|
GLib.Value value;
|
|
try {
|
|
value = StyleGetPropertyValue (property_name);
|
|
} catch (ArgumentException) {
|
|
return null;
|
|
}
|
|
object ret = value.Val;
|
|
value.Dispose ();
|
|
return ret;
|
|
}
|
|
|
|
[DllImport ("libgtk-win32-3.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
|
|
static extern IntPtr gtk_widget_class_find_style_property (IntPtr class_ptr, IntPtr property_name);
|
|
|
|
[DllImport ("libgtk-win32-3.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
|
|
static extern IntPtr gtk_widget_style_get_property (IntPtr inst, IntPtr property_name, ref GLib.Value value);
|
|
|
|
internal GLib.Value StyleGetPropertyValue (string property_name)
|
|
{
|
|
IntPtr native_name = GLib.Marshaller.StringToPtrGStrdup (property_name);
|
|
try {
|
|
IntPtr pspec_ptr = gtk_widget_class_find_style_property (this.LookupGType ().GetClassPtr (), native_name);
|
|
if (pspec_ptr == IntPtr.Zero)
|
|
throw new ArgumentException (String.Format ("Cannot find style property \"{0}\"", property_name));
|
|
|
|
GLib.Value value = new GLib.Value ((new GLib.ParamSpec (pspec_ptr)).ValueType);
|
|
gtk_widget_style_get_property (Handle, native_name, ref value);
|
|
return value;
|
|
} finally {
|
|
GLib.Marshaller.Free (native_name);
|
|
}
|
|
}
|
|
|
|
[DllImport ("libgtk-win32-3.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
|
|
static extern IntPtr gtk_widget_list_mnemonic_labels (IntPtr raw);
|
|
|
|
public Widget[] ListMnemonicLabels ()
|
|
{
|
|
IntPtr raw_ret = gtk_widget_list_mnemonic_labels (Handle);
|
|
if (raw_ret == IntPtr.Zero)
|
|
return new Widget [0];
|
|
GLib.List list = new GLib.List(raw_ret);
|
|
Widget[] result = new Widget [list.Count];
|
|
for (int i = 0; i < list.Count; i++)
|
|
result [i] = list [i] as Widget;
|
|
return result;
|
|
}
|
|
|
|
public void ModifyBase (Gtk.StateType state)
|
|
{
|
|
gtk_widget_modify_base (Handle, (int) state, IntPtr.Zero);
|
|
}
|
|
|
|
public void ModifyBg (Gtk.StateType state)
|
|
{
|
|
gtk_widget_modify_bg (Handle, (int) state, IntPtr.Zero);
|
|
}
|
|
|
|
public void ModifyFg (Gtk.StateType state)
|
|
{
|
|
gtk_widget_modify_fg (Handle, (int) state, IntPtr.Zero);
|
|
}
|
|
|
|
public void ModifyText (Gtk.StateType state)
|
|
{
|
|
gtk_widget_modify_text (Handle, (int) state, IntPtr.Zero);
|
|
}
|
|
|
|
public void Path (out string path, out string path_reversed)
|
|
{
|
|
uint len;
|
|
Path (out len, out path, out path_reversed);
|
|
}
|
|
|
|
static IDictionary<IntPtr, Delegate> destroy_handlers;
|
|
static IDictionary<IntPtr, Delegate> DestroyHandlers {
|
|
get {
|
|
if (destroy_handlers == null)
|
|
destroy_handlers = new Dictionary<IntPtr, Delegate> ();
|
|
return destroy_handlers;
|
|
}
|
|
}
|
|
|
|
private static void OverrideDestroyed (GLib.GType gtype)
|
|
{
|
|
// Do Nothing. We don't want to hook into the native vtable.
|
|
// We will manually invoke the VM on signal invocation. The signal
|
|
// always raises before the default handler because this signal
|
|
// is RUN_CLEANUP.
|
|
}
|
|
|
|
[GLib.DefaultSignalHandler(Type=typeof(Gtk.Widget), ConnectionMethod="OverrideDestroyed")]
|
|
protected virtual void OnDestroyed ()
|
|
{
|
|
if (DestroyHandlers.ContainsKey (Handle)) {
|
|
EventHandler handler = (EventHandler) DestroyHandlers [Handle];
|
|
handler (this, EventArgs.Empty);
|
|
DestroyHandlers.Remove (Handle);
|
|
}
|
|
}
|
|
|
|
[GLib.Signal("destroy")]
|
|
public event EventHandler Destroyed {
|
|
add {
|
|
EventHandler handler = (EventHandler) DestroyHandlers [Handle];
|
|
DestroyHandlers [Handle] = Delegate.Combine (handler, value);
|
|
}
|
|
remove {
|
|
EventHandler handler = (EventHandler) DestroyHandlers [Handle];
|
|
handler = (EventHandler) Delegate.Remove (handler, value);
|
|
if (handler != null)
|
|
DestroyHandlers [Handle] = handler;
|
|
else
|
|
DestroyHandlers.Remove (Handle);
|
|
}
|
|
}
|
|
|
|
event EventHandler InternalDestroyed {
|
|
add {
|
|
AddSignalHandler ("destroy", value);
|
|
}
|
|
remove {
|
|
RemoveSignalHandler ("destroy", value);
|
|
}
|
|
}
|
|
|
|
static void NativeDestroy (object o, EventArgs args)
|
|
{
|
|
Gtk.Widget widget = o as Gtk.Widget;
|
|
if (widget == null)
|
|
return;
|
|
widget.OnDestroyed ();
|
|
}
|
|
|
|
static EventHandler native_destroy_handler;
|
|
static EventHandler NativeDestroyHandler {
|
|
get {
|
|
if (native_destroy_handler == null)
|
|
native_destroy_handler = new EventHandler (NativeDestroy);
|
|
return native_destroy_handler;
|
|
}
|
|
}
|
|
|
|
protected override void CreateNativeObject (string[] names, GLib.Value[] vals)
|
|
{
|
|
base.CreateNativeObject (names, vals);
|
|
}
|
|
|
|
protected override void Dispose (bool disposing)
|
|
{
|
|
if (Handle == IntPtr.Zero)
|
|
return;
|
|
InternalDestroyed -= NativeDestroyHandler;
|
|
base.Dispose (disposing);
|
|
}
|
|
|
|
protected override IntPtr Raw {
|
|
get {
|
|
return base.Raw;
|
|
}
|
|
set {
|
|
base.Raw = value;
|
|
if (value != IntPtr.Zero)
|
|
InternalDestroyed += NativeDestroyHandler;
|
|
}
|
|
}
|
|
|
|
[DllImport ("libgtk-win32-3.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
|
|
private static extern void gtk_widget_destroy (IntPtr raw);
|
|
|
|
public virtual void Destroy ()
|
|
{
|
|
if (Handle == IntPtr.Zero)
|
|
return;
|
|
gtk_widget_destroy (Handle);
|
|
InternalDestroyed -= NativeDestroyHandler;
|
|
}
|
|
}
|
|
} |