Use g_signal_connect_after for GTK+ native controls

[wxWidgets.git] / src / gtk / checkbox.cpp

diff --git a/src/gtk/checkbox.cpp b/src/gtk/checkbox.cpp
index 33f8a565b79d5cebb1fbaf3aa15dde039be7f09f..09a67f104b5eeed210a472abed80c45b685c04ae 100644 (file)
--- a/src/gtk/checkbox.cpp
+++ b/src/gtk/checkbox.cpp
@@ -7,11 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "checkbox.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -42,21 +37,69 @@ extern wxWindowGTK   *g_delayedFocus;
 // "clicked"
 //-----------------------------------------------------------------------------
 
-static void gtk_checkbox_clicked_callback( GtkWidget *WXUNUSED(widget), wxCheckBox *cb )
+extern "C" {
+static void gtk_checkbox_toggled_callback(GtkWidget *widget, wxCheckBox *cb)
 {
     if (g_isIdle) wxapp_install_idle_handler();
 
     if (!cb->m_hasVMT) return;
 
     if (g_blockEventsOnDrag) return;
-    
+
     if (cb->m_blockEvent) return;
 
+    // Transitions for 3state checkbox must be done manually, GTK's checkbox
+    // is 2state with additional "undetermined state" flag which isn't
+    // changed automatically:
+    if (cb->Is3State())
+    {
+        GtkToggleButton *toggle = GTK_TOGGLE_BUTTON(widget);
+
+        if (cb->Is3rdStateAllowedForUser())
+        {
+            // The 3 states cycle like this when clicked:
+            // checked -> undetermined -> unchecked -> checked -> ...
+            bool active = gtk_toggle_button_get_active(toggle);
+            bool inconsistent = gtk_toggle_button_get_inconsistent(toggle);
+
+            cb->m_blockEvent = true;
+
+            if (!active && !inconsistent)
+            {
+                // checked -> undetermined
+                gtk_toggle_button_set_active(toggle, true);
+                gtk_toggle_button_set_inconsistent(toggle, true);
+            }
+            else if (!active && inconsistent)
+            {
+                // undetermined -> unchecked
+                gtk_toggle_button_set_inconsistent(toggle, false);
+            }
+            else if (active && !inconsistent)
+            {
+                // unchecked -> checked
+                // nothing to do
+            }
+            else
+            {
+                wxFAIL_MSG(_T("3state wxCheckBox in unexpected state!"));
+            }
+
+            cb->m_blockEvent = false;
+        }
+        else
+        {
+            // user's action unsets undetermined state:
+            gtk_toggle_button_set_inconsistent(toggle, false);
+        }
+    }
+
     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, cb->GetId());
-    event.SetInt( cb->GetValue() );
+    event.SetInt(cb->Get3StateValue());
     event.SetEventObject(cb);
     cb->GetEventHandler()->ProcessEvent(event);
 }
+}
 
 //-----------------------------------------------------------------------------
 // wxCheckBox
@@ -88,6 +131,11 @@ bool wxCheckBox::Create(wxWindow *parent,
         return FALSE;
     }
 
+    wxASSERT_MSG( (style & wxCHK_ALLOW_3RD_STATE_FOR_USER) == 0 ||
+                  (style & wxCHK_3STATE) != 0,
+                  wxT("Using wxCHK_ALLOW_3RD_STATE_FOR_USER")
+                  wxT(" style flag for a 2-state checkbox is useless") );
+
     if ( style & wxALIGN_RIGHT )
     {
         // VZ: as I don't know a way to create a right aligned checkbox with
@@ -108,15 +156,13 @@ bool wxCheckBox::Create(wxWindow *parent,
     else
     {
         m_widgetCheckbox = gtk_check_button_new_with_label("");
-        m_widgetLabel = BUTTON_CHILD( m_widgetCheckbox );
+        m_widgetLabel = GTK_BIN(m_widgetCheckbox)->child;
         m_widget = m_widgetCheckbox;
     }
     SetLabel( label );
 
-    gtk_signal_connect( GTK_OBJECT(m_widgetCheckbox),
-                        "clicked",
-                        GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback),
-                        (gpointer *)this );
+    g_signal_connect (m_widgetCheckbox, "toggled",
+                      G_CALLBACK (gtk_checkbox_toggled_callback), this);
 
     m_parent->DoAddChild( this );
 
@@ -134,7 +180,7 @@ void wxCheckBox::SetValue( bool state )
 
     m_blockEvent = TRUE;
 
-    gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widgetCheckbox), state );
+    gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(m_widgetCheckbox), state );
 
     m_blockEvent = FALSE;
 }
@@ -143,23 +189,33 @@ bool wxCheckBox::GetValue() const
 {
     wxCHECK_MSG( m_widgetCheckbox != NULL, FALSE, wxT("invalid checkbox") );
 
-    return GTK_TOGGLE_BUTTON(m_widgetCheckbox)->active;
+    return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(m_widgetCheckbox));
 }
 
-void wxCheckBox::SetLabel( const wxString& label )
+void wxCheckBox::DoSet3StateValue(wxCheckBoxState state)
 {
-    wxCHECK_RET( m_widgetLabel != NULL, wxT("invalid checkbox") );
+    SetValue(state != wxCHK_UNCHECKED);
+    gtk_toggle_button_set_inconsistent(GTK_TOGGLE_BUTTON(m_widgetCheckbox),
+                                       state == wxCHK_UNDETERMINED);
+}
 
-    wxControl::SetLabel( label );
+wxCheckBoxState wxCheckBox::DoGet3StateValue() const
+{
+    if (gtk_toggle_button_get_inconsistent(GTK_TOGGLE_BUTTON(m_widgetCheckbox)))
+    {
+        return wxCHK_UNDETERMINED;
+    }
+    else
+    {
+        return GetValue() ? wxCHK_CHECKED : wxCHK_UNCHECKED;
+    }
+}
 
-#ifdef __WXGTK20__
-    wxString label2 = PrepareLabelMnemonics( label );
-    gtk_label_set_text_with_mnemonic( GTK_LABEL(m_widgetLabel), wxGTK_CONV( label2 ) );
-#else
-    gtk_label_set( GTK_LABEL(m_widgetLabel), wxGTK_CONV( GetLabel() ) );
-#endif
+void wxCheckBox::SetLabel( const wxString& label )
+{
+    wxCHECK_RET( m_widgetLabel != NULL, wxT("invalid checkbox") );
 
-    PostSetLabel();
+    GTKSetLabelForLabel(GTK_LABEL(m_widgetLabel), label);
 }
 
 bool wxCheckBox::Enable( bool enable )
@@ -180,7 +236,7 @@ void wxCheckBox::DoApplyWidgetStyle(GtkRcStyle *style)
 
 bool wxCheckBox::IsOwnGtkWindow( GdkWindow *window )
 {
-    return window == TOGGLE_BUTTON_EVENT_WIN(m_widget);
+    return window == GTK_BUTTON(m_widget)->event_window;
 }
 
 void wxCheckBox::OnInternalIdle()
@@ -188,7 +244,7 @@ void wxCheckBox::OnInternalIdle()
     wxCursor cursor = m_cursor;
     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 
-    GdkWindow *event_window = TOGGLE_BUTTON_EVENT_WIN(m_widgetCheckbox);
+    GdkWindow *event_window = GTK_BUTTON(m_widgetCheckbox)->event_window;
     if ( event_window && cursor.Ok() )
     {
         /* I now set the cursor the anew in every OnInternalIdle call
@@ -207,7 +263,7 @@ void wxCheckBox::OnInternalIdle()
             g_delayedFocus = NULL;
         }
     }
-    
+
     if (wxUpdateUIEvent::CanUpdate(this))
         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
 }