X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9e2896e5c8944c5f5227fa080e1b781c4a6f2600..438959cca892a7651634cc3a7aad4819ac49b23c:/include/wx/msw/ole/droptgt.h

diff --git a/include/wx/msw/ole/droptgt.h b/include/wx/msw/ole/droptgt.h
index 2e4a4f4f98..7b65990922 100644
--- a/include/wx/msw/ole/droptgt.h
+++ b/include/wx/msw/ole/droptgt.h
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        ole/droptgt.h
+// Name:        wx/msw/ole/droptgt.h
 // Purpose:     declaration of the wxDropTarget class
 // Author:      Vadim Zeitlin
 // Modified by:
@@ -12,19 +12,14 @@
 #ifndef   _WX_OLEDROPTGT_H
 #define   _WX_OLEDROPTGT_H
 
-#ifdef __GNUG__
-#pragma interface "droptgt.h"
-#endif
-
-#if !wxUSE_DRAG_AND_DROP
-    #error  "You should #define wxUSE_DRAG_AND_DROP to 1 to compile this file!"
-#endif  //WX_DRAG_DROP
+#if wxUSE_DRAG_AND_DROP
 
 // ----------------------------------------------------------------------------
 // forward declarations
 // ----------------------------------------------------------------------------
 
 class  wxIDropTarget;
+struct wxIDropTargetHelper;
 struct IDataObject;
 
 // ----------------------------------------------------------------------------
@@ -37,7 +32,7 @@ struct IDataObject;
 // (all of them, including protected ones which are called by the class itself)
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxDropTarget : public wxDropTargetBase
+class WXDLLIMPEXP_CORE wxDropTarget : public wxDropTargetBase
 {
 public:
     // ctor & dtor
@@ -53,53 +48,43 @@ public:
     virtual bool OnDrop(wxCoord x, wxCoord y);
     virtual bool GetData();
 
+    // Can only be called during OnXXX methods.
+    wxDataFormat GetMatchingPair();
+
     // implementation only from now on
     // -------------------------------
 
     // do we accept this kind of data?
-    bool IsAcceptedData(IDataObject *pIDataSource) const;
+    bool MSWIsAcceptedData(IDataObject *pIDataSource) const;
 
     // give us the data source from IDropTarget::Drop() - this is later used by
     // GetData() when it's called from inside OnData()
-    void SetDataSource(IDataObject *pIDataSource);
+    void MSWSetDataSource(IDataObject *pIDataSource);
+
+    // These functions take care of all things necessary to support native drag
+    // images.
+    //
+    // {Init,End}DragImageSupport() are called during Register/Revoke,
+    // UpdateDragImageOnXXX() functions are called on the corresponding drop
+    // target events.
+    void MSWInitDragImageSupport();
+    void MSWEndDragImageSupport();
+    void MSWUpdateDragImageOnData(wxCoord x, wxCoord y, wxDragResult res);
+    void MSWUpdateDragImageOnDragOver(wxCoord x, wxCoord y, wxDragResult res);
+    void MSWUpdateDragImageOnEnter(wxCoord x, wxCoord y, wxDragResult res);
+    void MSWUpdateDragImageOnLeave();
 
 private:
     // helper used by IsAcceptedData() and GetData()
-    wxDataFormat GetSupportedFormat(IDataObject *pIDataSource) const;
-
-    wxIDropTarget *m_pIDropTarget; // the pointer to our COM interface
-    IDataObject   *m_pIDataSource; // the pointer to the source data object
-};
-
-// ----------------------------------------------------------------------------
-// A simple wxDropTarget derived class for text data: you only need to
-// override OnDropText() to get something working
-// ----------------------------------------------------------------------------
-
-class WXDLLEXPORT wxTextDropTarget : public wxDropTarget
-{
-public:
-    wxTextDropTarget();
+    wxDataFormat MSWGetSupportedFormat(IDataObject *pIDataSource) const;
 
-    virtual bool OnDropText(wxCoord x, wxCoord y, const wxString& text) = 0;
+    wxIDropTarget     *m_pIDropTarget; // the pointer to our COM interface
+    IDataObject       *m_pIDataSource; // the pointer to the source data object
+    wxIDropTargetHelper *m_dropTargetHelper; // the drop target helper
 
-    virtual bool OnData(wxCoord x, wxCoord y);
+    wxDECLARE_NO_COPY_CLASS(wxDropTarget);
 };
 
-// ----------------------------------------------------------------------------
-// A drop target which accepts files (dragged from File Manager or Explorer)
-// ----------------------------------------------------------------------------
-
-class WXDLLEXPORT wxFileDropTarget : public wxDropTarget
-{
-public:
-    wxFileDropTarget();
-
-    // parameters are the number of files and the array of file names
-    virtual bool OnDropFiles(wxCoord x, wxCoord y,
-                             const wxArrayString& filenames) = 0;
-
-    virtual bool OnData(wxCoord x, wxCoord y);
-};
+#endif  //wxUSE_DRAG_AND_DROP
 
 #endif  //_WX_OLEDROPTGT_H