applied (slightly modified) wxToggleButton patch from John Norris and Axel Schlueter

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9333 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/tglbtn.cpp

@@ -0,0 +1,198 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/gtk/tglbtn.cpp
+// Purpose:     Definition of the wxToggleButton class, which implements a
+//              toggle button under wxGTK.
+// Author:      John Norris, minor changes by Axel Schlueter
+// Modified by:
+// Created:     08.02.01
+// RCS-ID:      $Id$
+// Copyright:   (c) 2000 Johnny C. Norris II
+// License:     Rocketeer license
+/////////////////////////////////////////////////////////////////////////////
+
+#include "wx/tglbtn.h"
+
+#if wxUSE_TOGGLEBTN
+
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+extern bool      g_blockEventsOnDrag;
+extern wxCursor   g_globalCursor;
+
+// void gtk_togglebutton_clicked_callback(GtkWidget *widget, wxToggleButton *cb)
+// Callback function given to gtk.
+void wxToggleButton::gtk_togglebutton_clicked_callback(GtkWidget *WXUNUSED(widget), wxToggleButton *cb)
+{
+   if (g_isIdle)
+      wxapp_install_idle_handler();
+
+   if (!cb->m_hasVMT || g_blockEventsOnDrag)
+      return;
+
+   // Generate a wx event.
+   wxCommandEvent event(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, cb->GetId());
+   event.SetInt(cb->GetValue());
+   event.SetEventObject(cb);
+   cb->GetEventHandler()->ProcessEvent(event);
+}
+
+IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl)
+DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED)
+
+// bool Create(wxWindow *parent, wxWindowID id, const wxString &label,
+//             const wxPoint &pos, const wxSize &size, long style,
+//             const wxValidator& validator, const wxString &name)
+// Create the control.
+bool wxToggleButton::Create(wxWindow *parent, wxWindowID id,
+                            const wxString &label, const wxPoint &pos,
+                            const wxSize &size, long style,
+                            const wxValidator& validator,
+                            const wxString &name)
+{
+   m_needParent = TRUE;
+   m_acceptsFocus = TRUE;
+
+   if (!PreCreation(parent, pos, size) ||
+       !CreateBase(parent, id, pos, size, style, validator, name )) {
+      wxFAIL_MSG(wxT("wxToggleButton creation failed"));
+      return FALSE;
+   }
+
+   wxControl::SetLabel(label);
+
+   // Create the gtk widget.
+   m_widget = gtk_toggle_button_new_with_label(m_label.mbc_str());
+
+   gtk_signal_connect(GTK_OBJECT(m_widget), "clicked",
+                      GTK_SIGNAL_FUNC(gtk_togglebutton_clicked_callback),
+                      (gpointer *)this);
+
+   m_parent->DoAddChild(this);
+
+   PostCreation();
+
+   SetFont(parent->GetFont());
+
+   wxSize size_best(DoGetBestSize());
+   wxSize new_size(size);
+   if (new_size.x == -1)
+      new_size.x = size_best.x;
+   if (new_size.y == -1)
+      new_size.y = size_best.y;
+   if ((new_size.x != size.x) || (new_size.y != size.y))
+      SetSize(new_size.x, new_size.y);
+
+   SetBackgroundColour(parent->GetBackgroundColour());
+   SetForegroundColour(parent->GetForegroundColour());
+
+   Show(TRUE);
+
+   return TRUE;
+}
+
+// void SetValue(bool state)
+// Set the value of the toggle button.
+void wxToggleButton::SetValue(bool state)
+{
+   wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
+
+   if (state == GetValue())
+      return;
+
+   gtk_signal_disconnect_by_func(GTK_OBJECT(m_widget),
+                                 GTK_SIGNAL_FUNC(gtk_togglebutton_clicked_callback),
+                                 (gpointer *)this);
+
+   gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(m_widget), state);
+
+   gtk_signal_connect(GTK_OBJECT(m_widget), "clicked",
+                      GTK_SIGNAL_FUNC(gtk_togglebutton_clicked_callback),
+                      (gpointer *)this);
+}
+
+// bool GetValue() const
+// Get the value of the toggle button.
+bool wxToggleButton::GetValue() const
+{
+   wxCHECK_MSG(m_widget != NULL, FALSE, wxT("invalid toggle button"));
+
+   return GTK_TOGGLE_BUTTON(m_widget)->active;
+}
+
+// void SetLabel(const wxString& label)
+// Set the button's label.
+void wxToggleButton::SetLabel(const wxString& label)
+{
+   wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
+
+   wxControl::SetLabel(label);
+
+   gtk_label_set(GTK_LABEL(GTK_BUTTON(m_widget)->child),
+                 GetLabel().mbc_str());
+}
+
+// bool Enable(bool enable)
+// Enable (or disable) the control.
+bool wxToggleButton::Enable(bool enable /*=TRUE*/)
+{
+   if (!wxControl::Enable(enable))
+      return FALSE;
+
+   gtk_widget_set_sensitive(GTK_BUTTON(m_widget)->child, enable);
+
+   return TRUE;
+}
+
+// void ApplyWidgetStyle()
+// I don't really know what this does.
+void wxToggleButton::ApplyWidgetStyle()
+{
+   SetWidgetStyle();
+   gtk_widget_set_style(m_widget, m_widgetStyle);
+   gtk_widget_set_style(GTK_BUTTON(m_widget)->child, m_widgetStyle);
+}
+
+// bool IsOwnGtkWindow(GdkWindow *window)
+// I'm not really sure what this is for, either.
+bool wxToggleButton::IsOwnGtkWindow(GdkWindow *window)
+{
+   return (window == GTK_TOGGLE_BUTTON(m_widget)->event_window);
+}
+
+// void OnInternalIdle()
+// Apparently gtk cursors are difficult to deal with.
+void wxToggleButton::OnInternalIdle()
+{
+   wxCursor cursor = m_cursor;
+   if (g_globalCursor.Ok())
+      cursor = g_globalCursor;
+
+   if (GTK_TOGGLE_BUTTON(m_widget)->event_window && cursor.Ok()) {
+      /* I now set the cursor the anew in every OnInternalIdle call
+         as setting the cursor in a parent window also effects the
+         windows above so that checking for the current cursor is
+         not possible. */
+
+      gdk_window_set_cursor(GTK_TOGGLE_BUTTON(m_widget)->event_window,
+                            cursor.GetCursor());
+   }
+
+   UpdateWindowUI();
+}
+
+// wxSize DoGetBestSize() const
+// Get the "best" size for this control.
+wxSize wxToggleButton::DoGetBestSize() const
+{
+   wxSize ret(wxControl::DoGetBestSize());
+   if (ret.x < 80)
+      ret.x = 80;
+
+   return ret;
+}
+
+#endif // wxUSE_TOGGLEBTN
+