The GtkRadiant sources as originally released under the GPL license.

libs/gtkutil/nonmodal.h

@@ -0,0 +1,186 @@
+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#if !defined(INCLUDED_GTKUTIL_NONMODAL_H)
+#define INCLUDED_GTKUTIL_NONMODAL_H
+
+#include <gtk/gtkwindow.h>
+#include <gtk/gtkspinbutton.h>
+#include <gtk/gtkradiobutton.h>
+#include <gdk/gdkkeysyms.h>
+
+#include "generic/callback.h"
+
+#include "pointer.h"
+#include "button.h"
+
+typedef struct _GtkEntry GtkEntry;
+
+
+inline gboolean escape_clear_focus_widget(GtkWidget* widget, GdkEventKey* event, gpointer data)
+{
+  if(event->keyval == GDK_Escape)
+  {
+    gtk_window_set_focus(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(widget))), NULL);
+    return TRUE;
+  }
+  return FALSE;
+}
+
+inline void widget_connect_escape_clear_focus_widget(GtkWidget* widget)
+{
+  g_signal_connect(G_OBJECT(widget), "key_press_event", G_CALLBACK(escape_clear_focus_widget), 0);
+}
+
+
+class NonModalEntry
+{
+  bool m_editing;
+  Callback m_apply;
+  Callback m_cancel;
+
+  static gboolean focus_in(GtkEntry* entry, GdkEventFocus *event, NonModalEntry* self)
+  {
+    self->m_editing = false;
+    return FALSE;
+  }
+
+  static gboolean focus_out(GtkEntry* entry, GdkEventFocus *event, NonModalEntry* self)
+  {
+    if(self->m_editing && GTK_WIDGET_VISIBLE(entry))
+    {
+      self->m_apply();
+    }
+    self->m_editing = false;
+    return FALSE;
+  }
+
+  static gboolean changed(GtkEntry* entry, NonModalEntry* self)
+  {
+    self->m_editing = true;
+    return FALSE;
+  }
+
+  static gboolean enter(GtkEntry* entry, GdkEventKey* event, NonModalEntry* self)
+  {
+    if(event->keyval == GDK_Return)
+    {
+      self->m_apply();
+      self->m_editing = false;
+      gtk_window_set_focus(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(entry))), NULL);
+      return TRUE;
+    }
+    return FALSE;
+  }
+
+  static gboolean escape(GtkEntry* entry, GdkEventKey* event, NonModalEntry* self)
+  {
+    if(event->keyval == GDK_Escape)
+    {
+      self->m_cancel();
+      self->m_editing = false;
+      gtk_window_set_focus(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(entry))), NULL);
+      return TRUE;
+    }
+    return FALSE;
+  }
+
+public:
+  NonModalEntry(const Callback& apply, const Callback& cancel) : m_editing(false), m_apply(apply), m_cancel(cancel)
+  {
+  }
+  void connect(GtkEntry* entry)
+  {
+    g_signal_connect(G_OBJECT(entry), "focus_in_event", G_CALLBACK(focus_in), this);
+    g_signal_connect(G_OBJECT(entry), "focus_out_event", G_CALLBACK(focus_out), this);
+    g_signal_connect(G_OBJECT(entry), "key_press_event", G_CALLBACK(enter), this);
+    g_signal_connect(G_OBJECT(entry), "key_press_event", G_CALLBACK(escape), this);
+    g_signal_connect(G_OBJECT(entry), "changed", G_CALLBACK(changed), this);
+  }
+};
+
+
+class NonModalSpinner
+{
+  Callback m_apply;
+  Callback m_cancel;
+
+  static gboolean changed(GtkSpinButton* spin, NonModalSpinner* self)
+  {
+    self->m_apply();
+    return FALSE;
+  }
+
+  static gboolean enter(GtkSpinButton* spin, GdkEventKey* event, NonModalSpinner* self)
+  {
+    if(event->keyval == GDK_Return)
+    {
+      gtk_window_set_focus(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(spin))), NULL);
+      return TRUE;
+    }
+    return FALSE;
+  }
+
+  static gboolean escape(GtkSpinButton* spin, GdkEventKey* event, NonModalSpinner* self)
+  {
+    if(event->keyval == GDK_Escape)
+    {
+      self->m_cancel();
+      gtk_window_set_focus(GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(spin))), NULL);
+      return TRUE;
+    }
+    return FALSE;
+  }
+
+public:
+  NonModalSpinner(const Callback& apply, const Callback& cancel) : m_apply(apply), m_cancel(cancel)
+  {
+  }
+  void connect(GtkSpinButton* spin)
+  {
+    guint handler = g_signal_connect(G_OBJECT(gtk_spin_button_get_adjustment(spin)), "value_changed", G_CALLBACK(changed), this);
+    g_object_set_data(G_OBJECT(spin), "handler", gint_to_pointer(handler));
+    g_signal_connect(G_OBJECT(spin), "key_press_event", G_CALLBACK(enter), this);
+    g_signal_connect(G_OBJECT(spin), "key_press_event", G_CALLBACK(escape), this);
+  }
+};
+
+ 
+class NonModalRadio
+{
+  Callback m_changed;
+
+public:
+  NonModalRadio(const Callback& changed) : m_changed(changed)
+  {
+  }
+  void connect(GtkRadioButton* radio)
+  {
+    GSList* group = gtk_radio_button_group(radio);
+    for(; group != 0; group = g_slist_next(group))
+    {
+      toggle_button_connect_callback(GTK_TOGGLE_BUTTON(group->data), m_changed);
+    }
+  }
+};
+
+
+#endif