*** empty log message ***

svn path=/trunk/boinc/; revision=10443

clientgui/common/wxFNBDropTarget.h

@@ -0,0 +1,78 @@
+#ifndef _WX_FNB_DROP_TARGET_H
+#define _WX_FNB_DROP_TARGET_H
+
+#include <wx/wx.h>
+#include <wx/dnd.h>
+
+/**
+\brief Contains the information about dragged page (page index and container).
+*/
+class wxFNBDragInfo
+{
+	wxWindow * m_Container;
+	int m_PageIndex;	
+public:		
+	/**
+	Constructor
+	\param container - pointer to wxPageContainer object which contains dragged page
+	\param pageindex - index of dragged page
+	*/
+	wxFNBDragInfo(wxWindow * container, int pageindex) : m_Container(container), m_PageIndex(pageindex){}	
+	/**
+	Returns wxPageContainer object which contains dragged page
+	*/
+	wxWindow * GetContainer() {return m_Container;}
+	/**
+	Returns the index of dragged page
+	*/
+	int GetPageIndex() {return m_PageIndex;}
+};
+
+/**
+\brief Used for processing drag-n-drop opeartions
+*/
+template <class T>
+class wxFNBDropTarget : public wxDropTarget
+{
+private:
+	typedef wxDragResult (T::*pt2Func)(wxCoord, wxCoord, int, wxWindow *);
+	T* m_pParent;
+	pt2Func m_pt2CallbackFunc;
+	wxCustomDataObject * m_DataObject;
+public:
+	/**
+	\brief Constructor
+	\param pParent - Object that will handle drag-n-drop operation
+	\param pt2CallbackFunc - Pointer to callback method which should be called after dragging the notebook page
+	*/
+    wxFNBDropTarget(T* pParent, pt2Func pt2CallbackFunc)
+		: m_pParent(pParent)
+		, m_pt2CallbackFunc(pt2CallbackFunc)
+		, m_DataObject(NULL)
+	{
+		m_DataObject = new wxCustomDataObject(wxDataFormat(wxT("wxFNB")));
+		SetDataObject(m_DataObject);
+	}
+	/**
+	\brief Virtual Destructor
+	*/
+	virtual ~wxFNBDropTarget(void) {}
+	/**
+	\brief Used for processing drop operation
+	\param x - X-coordinate
+	\param y - Y-coordinate
+	\param def - Result of drag-n-drop operation
+	*/
+    virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def)
+	{		
+		GetData();
+		wxFNBDragInfo * draginfo = (wxFNBDragInfo *)m_DataObject->GetData();
+		if(!draginfo) 
+		{
+			return wxDragNone;
+		}
+		return (m_pParent->*m_pt2CallbackFunc)(x, y, draginfo->GetPageIndex(), (T *)draginfo->GetContainer()); 	
+	}
+};
+
+#endif