tool: Added a generic parameter for RunAction().

common/tool/tool_manager.cpp

@@ -292,21 +292,19 @@ void TOOL_MANAGER::UnregisterAction( TOOL_ACTION* aAction )
 }
 
 
-bool TOOL_MANAGER::RunAction( const std::string& aActionName, bool aNow )
+bool TOOL_MANAGER::RunAction( const std::string& aActionName, bool aNow, void* aParam )
 {
     TOOL_ACTION* action = m_actionMgr->FindAction( aActionName );
 
     if( action )
-    {
-        if( aNow )
     {
         TOOL_EVENT event = action->MakeEvent();
+        event.SetParameter( aParam );
+
+        if( aNow )
             ProcessEvent( event );
-        }
         else
-        {
-            PostEvent( action->MakeEvent() );
-        }
+            PostEvent( event );
 
         return true;
     }
@@ -315,17 +313,15 @@ bool TOOL_MANAGER::RunAction( const std::string& aActionName, bool aNow )
 }
 
 
-void TOOL_MANAGER::RunAction( const TOOL_ACTION& aAction, bool aNow )
+void TOOL_MANAGER::RunAction( const TOOL_ACTION& aAction, bool aNow, void* aParam )
 {
-    if( aNow )
-    {
     TOOL_EVENT event = aAction.MakeEvent();
+    event.SetParameter( aParam );
+
+    if( aNow )
         ProcessEvent( event );
-    }
     else
-    {
-        PostEvent( aAction.MakeEvent() );
-    }
+        PostEvent( event );
 }
 
 

include/tool/tool_event.h

@@ -165,7 +165,8 @@ public:
         m_scope( aScope ),
         m_mouseButtons( 0 ),
         m_keyCode( 0 ),
-        m_modifiers( 0 ) {}
+        m_modifiers( 0 ),
+        m_param( NULL ) {}
 
     TOOL_EVENT( TOOL_EVENT_CATEGORY aCategory, TOOL_ACTIONS aAction, int aExtraParam,
             TOOL_ACTION_SCOPE aScope = AS_GLOBAL ) :
@@ -174,7 +175,8 @@ public:
         m_scope( aScope ),
         m_mouseButtons( 0 ),
         m_keyCode( 0 ),
-        m_modifiers( 0 )
+        m_modifiers( 0 ),
+        m_param( NULL )
     {
         if( aCategory == TC_MOUSE )
         {
@@ -202,7 +204,8 @@ public:
         m_scope( aScope ),
         m_mouseButtons( 0 ),
         m_keyCode( 0 ),
-        m_modifiers( 0 )
+        m_modifiers( 0 ),
+        m_param( NULL )
     {
         if( aCategory == TC_COMMAND || aCategory == TC_MESSAGE )
             m_commandStr = aExtraParam;
@@ -352,6 +355,27 @@ public:
      */
     bool IsAction( const TOOL_ACTION* aAction ) const;
 
+    /**
+     * Function Parameter()
+     * Returns a non-standard parameter assigned to the event. Its meaning depends on the
+     * target tool.
+     */
+    void* Parameter() const
+    {
+        return m_param;
+    }
+
+    /**
+     * Function SetParameter()
+     * Sets a non-standard parameter assigned to the event. Its meaning depends on the
+     * target tool.
+     * @param aParam is the new parameter.
+     */
+    void SetParameter(void* aParam)
+    {
+        m_param = aParam;
+    }
+
     boost::optional<int> GetCommandId() const
     {
         return m_commandId;
@@ -388,6 +412,9 @@ private:
     ///> State of key modifierts (Ctrl/Alt/etc.)
     int m_modifiers;
 
+    ///> Generic parameter used for passing non-standard data.
+    void* m_param;
+
     boost::optional<int> m_commandId;
     boost::optional<std::string> m_commandStr;
 };

include/tool/tool_manager.h

@@ -108,9 +108,11 @@ public:
      * @param aActionName is the name of action to be invoked.
      * @param aNow decides if the action has to be run immediately or after the current coroutine
      * is preemptied.
+     * @param aParam is an optional parameter that might be used by the invoked action. Its meaning
+     * depends on the action.
      * @return False if the action was not found.
      */
-    bool RunAction( const std::string& aActionName, bool aNow = false );
+    bool RunAction( const std::string& aActionName, bool aNow = false, void* aParam = NULL );
 
     /**
      * Function RunAction()
@@ -119,8 +121,10 @@ public:
      * @param aAction is the action to be invoked.
      * @param aNow decides if the action has to be run immediately or after the current coroutine
      * is preemptied.
+     * @param aParam is an optional parameter that might be used by the invoked action. Its meaning
+     * depends on the action.
      */
-    void RunAction( const TOOL_ACTION& aAction, bool aNow = false );
+    void RunAction( const TOOL_ACTION& aAction, bool aNow = false, void* aParam = NULL );
 
     /**
      * Function FindTool()