+extern bool g_blockEventsOnDrag;
+extern bool g_blockEventsOnScroll;
+extern wxCursor g_globalCursor;
+
+static bool g_hasDoubleClicked = FALSE;
+
+//-----------------------------------------------------------------------------
+// idle callback for SetFirstItem
+//-----------------------------------------------------------------------------
+
+struct wxlistbox_idle_struct
+{
+ wxListBox *m_listbox;
+ int m_item;
+ gint m_tag;
+};
+
+extern "C" gint wxlistbox_idle_callback( gpointer gdata )
+{
+ wxlistbox_idle_struct* data = (wxlistbox_idle_struct*) gdata;
+ gdk_threads_enter();
+
+ gtk_idle_remove( data->m_tag );
+
+ // check that the items haven't been deleted from the listbox since we had
+ // installed this callback
+ wxListBox *lbox = data->m_listbox;
+ if ( data->m_item < lbox->GetCount() )
+ {
+ lbox->SetFirstItem( data->m_item );
+ }
+
+ delete data;
+
+ gdk_threads_leave();
+
+ return TRUE;
+}
+
+//-----------------------------------------------------------------------------
+// "button_release_event"
+//-----------------------------------------------------------------------------
+
+/* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
+ a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
+ listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
+ this can lead to race conditions so that we emit the dclick event
+ after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
+
+static gint
+gtk_listbox_button_release_callback( GtkWidget * WXUNUSED(widget),
+ GdkEventButton * WXUNUSED(gdk_event),
+ wxListBox *listbox )
+{
+ if (g_isIdle) wxapp_install_idle_handler();
+
+ if (g_blockEventsOnDrag) return FALSE;
+ if (g_blockEventsOnScroll) return FALSE;
+
+ if (!listbox->m_hasVMT) return FALSE;
+
+ if (!g_hasDoubleClicked) return FALSE;
+
+ wxCommandEvent event( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, listbox->GetId() );
+ event.SetEventObject( listbox );
+
+ wxArrayInt aSelections;
+ int n, count = listbox->GetSelections(aSelections);
+ if ( count > 0 )
+ {
+ n = aSelections[0];
+ if ( listbox->HasClientObjectData() )
+ event.SetClientObject( listbox->GetClientObject(n) );
+ else if ( listbox->HasClientUntypedData() )
+ event.SetClientData( listbox->GetClientData(n) );
+ event.SetString( listbox->GetString(n) );
+ }
+ else
+ {
+ n = -1;
+ }
+
+ event.m_commandInt = n;
+
+ listbox->GetEventHandler()->ProcessEvent( event );
+
+ return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// "button_press_event"
+//-----------------------------------------------------------------------------
+
+static gint
+gtk_listbox_button_press_callback( GtkWidget *widget,
+ GdkEventButton *gdk_event,
+ wxListBox *listbox )
+{
+ if (g_isIdle) wxapp_install_idle_handler();
+
+ if (g_blockEventsOnDrag) return FALSE;
+ if (g_blockEventsOnScroll) return FALSE;
+
+ if (!listbox->m_hasVMT) return FALSE;
+
+ int sel = listbox->GtkGetIndex( widget );
+
+#if wxUSE_CHECKLISTBOX
+ if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
+ {
+ wxCheckListBox *clb = (wxCheckListBox *)listbox;
+
+ clb->Check( sel, !clb->IsChecked(sel) );
+
+ wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
+ event.SetEventObject( listbox );
+ event.SetInt( sel );
+ listbox->GetEventHandler()->ProcessEvent( event );
+ }
+#endif // wxUSE_CHECKLISTBOX
+
+ /* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
+ g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
+
+ return FALSE;
+}
+
+//-----------------------------------------------------------------------------
+// "key_press_event"
+//-----------------------------------------------------------------------------
+
+static gint
+gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
+{
+ if (g_isIdle)
+ wxapp_install_idle_handler();
+
+ if (g_blockEventsOnDrag)
+ return FALSE;
+
+ bool ret = FALSE;
+
+ if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
+ {
+ wxNavigationKeyEvent new_event;
+ /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
+ new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
+ /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
+ new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
+ new_event.SetCurrentFocus( listbox );
+ ret = listbox->GetEventHandler()->ProcessEvent( new_event );
+ }
+
+ if ((gdk_event->keyval == GDK_Return) && (!ret))
+ {
+ // eat return in all modes
+ ret = TRUE;
+ }
+
+#if wxUSE_CHECKLISTBOX
+ if ((gdk_event->keyval == ' ') && (listbox->m_hasCheckBoxes) && (!ret))
+ {
+ int sel = listbox->GtkGetIndex( widget );
+
+ wxCheckListBox *clb = (wxCheckListBox *)listbox;
+
+ clb->Check( sel, !clb->IsChecked(sel) );
+
+ wxCommandEvent new_event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
+ new_event.SetEventObject( listbox );
+ new_event.SetInt( sel );
+ ret = listbox->GetEventHandler()->ProcessEvent( new_event );
+ }
+#endif // wxUSE_CHECKLISTBOX
+
+ if (ret)
+ {
+ gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
+ return TRUE;
+ }
+
+ return FALSE;
+}
projects / wxWidgets.git / blobdiff