[vlmc-devel] commit: UndoStack: Support for translation. ( Hugo Beauzée-Luyssen )

[git at videolan.org]

vlmc | branch: master | Hugo Beauzée-Luyssen <beauze.h at gmail.com> | Mon Oct 11 00:04:01 2010 +0200| [fee19b53ff685f38ff4e4a10757f49011263b15e] | committer: Hugo Beauzée-Luyssen 

UndoStack: Support for translation.

However, this doesn't work, as command seems not to be translated...

> http://git.videolan.org/gitweb.cgi/vlmc.git/?a=commit;h=fee19b53ff685f38ff4e4a10757f49011263b15e
---

 src/Commands/Commands.cpp |    4 ++++
 src/Commands/Commands.h   |    2 +-
 src/Gui/UndoStack.cpp     |   18 ++++++++++++++++++
 src/Gui/UndoStack.h       |    4 ++++
 4 files changed, 27 insertions(+), 1 deletions(-)

diff --git a/src/Commands/Commands.cpp b/src/Commands/Commands.cpp
index 3fca835..af9c1b4 100644
--- a/src/Commands/Commands.cpp
+++ b/src/Commands/Commands.cpp
@@ -49,6 +49,10 @@ void Commands::trigger( Commands::Generic* command )
 Commands::Generic::Generic() :
         m_valid( true )
 {
+    //This is connected using a direct connection to ensure the view can be refreshed
+    //just after the signal has been emited.
+    connect( UndoStack::getInstance(), SIGNAL( retranslateRequired() ),
+             this, SLOT( retranslate() ), Qt::DirectConnection );
 }
 
 void
diff --git a/src/Commands/Commands.h b/src/Commands/Commands.h
index 1fcf269..596b9b3 100644
--- a/src/Commands/Commands.h
+++ b/src/Commands/Commands.h
@@ -53,13 +53,13 @@ namespace Commands
             Generic();
             virtual void    internalRedo() = 0;
             virtual void    internalUndo() = 0;
-            virtual void    retranslate() = 0;
             void            redo();
             void            undo();
             bool            isValid() const;
         private:
             bool            m_valid;
         protected slots:
+            virtual void    retranslate() = 0;
             void            invalidate();
         signals:
             void            invalidated();
diff --git a/src/Gui/UndoStack.cpp b/src/Gui/UndoStack.cpp
index 4c15b42..21adddb 100644
--- a/src/Gui/UndoStack.cpp
+++ b/src/Gui/UndoStack.cpp
@@ -22,9 +22,12 @@
  *****************************************************************************/
 
 #include "UndoStack.h"
+
+#include "Commands.h"
 #include "project/GuiProjectManager.h"
 #include "SettingsManager.h"
 
+#include <QEvent>
 #include <QUndoStack>
 #include <QUndoCommand>
 
@@ -92,3 +95,18 @@ UndoStack::redo()
 {
     m_undoStack->redo();
 }
+
+void
+UndoStack::changeEvent( QEvent *event )
+{
+    switch ( event->type() )
+    {
+    case QEvent::LanguageChange:
+        setEmptyLabel( tr( "Nothing to undo" ) );
+        emit retranslateRequired();
+        update( rootIndex() );
+        break;
+    default:
+        break;
+    }
+}
diff --git a/src/Gui/UndoStack.h b/src/Gui/UndoStack.h
index 865be30..ed49a6d 100644
--- a/src/Gui/UndoStack.h
+++ b/src/Gui/UndoStack.h
@@ -43,6 +43,9 @@ class UndoStack : public QUndoView, public QSingleton<UndoStack>
         bool        canUndo();
         bool        canRedo();
 
+    protected:
+        void        changeEvent( QEvent *event );
+
     private:
         UndoStack( QWidget* parent );
 
@@ -57,6 +60,7 @@ class UndoStack : public QUndoView, public QSingleton<UndoStack>
         void            cleanChanged( bool val );
         void            canRedoChanged( bool canRedo );
         void            canUndoChanged( bool canUndo );
+        void            retranslateRequired();
 
     friend class        QSingleton<UndoStack>;
 };