avoiding warning because of missing define

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

diff --git a/src/gtk/tbargtk.cpp b/src/gtk/tbargtk.cpp
index a4aa985348230542cbf44ed5c3e6a184fe614bb8..58d9d0713de5f8eed4c103ca4353bca349f27503 100644 (file)
--- a/src/gtk/tbargtk.cpp
+++ b/src/gtk/tbargtk.cpp
@@ -101,6 +101,12 @@ public:
         : wxToolBarToolBase(tbar, control, label)
     {
         Init();
+        // Hold a reference to keep control alive until DoInsertTool() is
+        // called, or if RemoveTool() is called (see DoDeleteTool)
+        g_object_ref(control->m_widget);
+        // release reference when gtk_widget_destroy() is called on control
+        g_signal_connect(
+            control->m_widget, "destroy", G_CALLBACK(g_object_unref), NULL);
     }
 
     // is this a radio button?
@@ -139,8 +145,14 @@ public:
         }
     }
 
-    GtkWidget            *m_item;
-    GtkWidget            *m_image;
+    // the toolbar element for button tools or a GtkAlignment containing the
+    // control for control tools
+    GtkWidget *m_item;
+    // dropdown element for button tools
+    GtkWidget *m_itemDropdown;
+
+    // a GtkImage containing the image for a button-type tool, may be NULL
+    GtkWidget *m_image;
 
 protected:
     void Init();
@@ -344,11 +356,9 @@ size_request(GtkWidget*, GtkRequisition* req, wxToolBar* win)
 //-----------------------------------------------------------------------------
 
 static void wxInsertChildInToolBar( wxWindow* WXUNUSED(parent),
-                                    wxWindow* child)
+                                    wxWindow* /* child */)
 {
-    // Child widget will be inserted into GtkToolbar by DoInsertTool. Ref it
-    // here so reparenting into wxToolBar doesn't delete it.
-    g_object_ref(child->m_widget);
+    // Child widget will be inserted into GtkToolbar by DoInsertTool()
 }
 
 // ----------------------------------------------------------------------------
@@ -358,6 +368,7 @@ static void wxInsertChildInToolBar( wxWindow* WXUNUSED(parent),
 void wxToolBarTool::Init()
 {
     m_item =
+    m_itemDropdown =
     m_image = NULL;
 }
 
@@ -590,6 +601,7 @@ bool wxToolBar::DoInsertTool(size_t pos, wxToolBarToolBase *toolBase)
                     GtkWidget *image = gtk_image_new_from_pixbuf( pixbuf );
                     gtk_widget_show( image );
                     gtk_container_add( GTK_CONTAINER(dropdown), image );
+                    g_object_unref(pixbuf);
 
                     if (GetWindowStyle() & wxTB_FLAT)
                         gtk_button_set_relief( GTK_BUTTON(dropdown), GTK_RELIEF_NONE );
@@ -611,46 +623,27 @@ bool wxToolBar::DoInsertTool(size_t pos, wxToolBarToolBase *toolBase)
                         (tool->m_item, &req );
                     gtk_widget_set_size_request( dropdown, -1, req.height );
 
-                    gtk_toolbar_insert_widget(
-                                       m_toolbar,
-                                       dropdown,
-                                       (const char *) NULL,
-                                       (const char *) NULL,
-                                       posGtk+1
-                                      );
+                    gtk_toolbar_insert_widget(m_toolbar, dropdown, NULL, NULL,
+                                              posGtk + 1);
+                    tool->m_itemDropdown = dropdown;
                 }
             }
             break;
 
         case wxTOOL_STYLE_SEPARATOR:
             gtk_toolbar_insert_space( m_toolbar, posGtk );
-
-            // skip the rest
-            return true;
+            break;
 
         case wxTOOL_STYLE_CONTROL:
-#if 1
-            GtkWidget* align = gtk_alignment_new(0.5, 0.5, 0, 0);
+            GtkWidget * const align = gtk_alignment_new(0.5, 0.5, 0, 0);
             gtk_widget_show(align);
-            gtk_container_add((GtkContainer*)align, tool->GetControl()->m_widget);
-            gtk_toolbar_insert_widget(
-                                       m_toolbar,
-                                       align,
-                                       (const char *) NULL,
-                                       (const char *) NULL,
-                                       posGtk
-                                      );
-#else
-            gtk_toolbar_insert_widget(
-                                       m_toolbar,
-                                       tool->GetControl()->m_widget,
-                                       (const char *) NULL,
-                                       (const char *) NULL,
-                                       posGtk
-                                      );
-#endif
-            // release reference obtained by wxInsertChildInToolBar
-            g_object_unref(tool->GetControl()->m_widget);
+            gtk_container_add(GTK_CONTAINER(align),
+                              tool->GetControl()->m_widget);
+            gtk_toolbar_insert_widget(m_toolbar, align, NULL, NULL, posGtk);
+
+            // remember the container we're in so that we could remove
+            // ourselves from it when we're detached from the toolbar
+            tool->m_item = align;
             break;
     }
 
@@ -666,16 +659,31 @@ bool wxToolBar::DoDeleteTool(size_t pos, wxToolBarToolBase *toolBase)
     switch ( tool->GetStyle() )
     {
         case wxTOOL_STYLE_CONTROL:
-            tool->GetControl()->Destroy();
-            break;
+            // don't destroy the control here as we can be called from
+            // RemoveTool() and then we need to keep the control alive;
+            // while if we're called from DeleteTool() the control will
+            // be destroyed when wxToolBarToolBase itself is deleted
+            gtk_container_remove(
+                GTK_CONTAINER(tool->m_item), tool->GetControl()->m_widget);
+            // fall through
 
         case wxTOOL_STYLE_BUTTON:
             gtk_widget_destroy( tool->m_item );
+            tool->m_item = NULL;
+            if (tool->m_itemDropdown)
+            {
+                gtk_widget_destroy(tool->m_itemDropdown);
+                tool->m_itemDropdown = NULL;
+            }
             break;
 
         case wxTOOL_STYLE_SEPARATOR:
             gtk_toolbar_remove_space( m_toolbar, pos );
             break;
+
+        default:
+            wxFAIL_MSG( "unknown tool style" );
+            return false;
     }
 
     InvalidateBestSize();
@@ -837,7 +845,7 @@ void wxToolBar::OnInternalIdle()
         }
     }
 
-    if (wxUpdateUIEvent::CanUpdate(this))
+    if (wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen())
         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
 }