X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2d93e1335c44ee76c9a5d98bd76ee3df72fa3146..dd9f8b6bb6935360a8271dc3e8749fb026b601a8:/include/wx/dnd.h?ds=sidebyside

diff --git a/include/wx/dnd.h b/include/wx/dnd.h
index 0d113904ec..498bbc7afe 100644
--- a/include/wx/dnd.h
+++ b/include/wx/dnd.h
@@ -5,8 +5,8 @@
 // Modified by:
 // Created:     26.05.99
 // RCS-ID:      $Id$
-// Copyright:   (c) wxWindows Team
-// Licence:     wxWindows license
+// Copyright:   (c) wxWidgets Team
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_DND_H_BASE_
@@ -17,11 +17,23 @@
 #if wxUSE_DRAG_AND_DROP
 
 #include "wx/dataobj.h"
+#include "wx/cursor.h"
 
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
 
+// flags for wxDropSource::DoDragDrop()
+//
+// NB: wxDrag_CopyOnly must be 0 (== FALSE) and wxDrag_AllowMove must be 1
+//     (== TRUE) for compatibility with the old DoDragDrop(bool) method!
+enum
+{
+    wxDrag_CopyOnly    = 0, // allow only copying
+    wxDrag_AllowMove   = 1, // allow moving (copying is always allowed)
+    wxDrag_DefaultMove = 3  // the default operation is move, not copy
+};
+
 // result of wxDropSource::DoDragDrop() call
 enum wxDragResult
 {
@@ -29,13 +41,13 @@ enum wxDragResult
     wxDragNone,     // drag target didn't accept the data
     wxDragCopy,     // the data was successfully copied
     wxDragMove,     // the data was successfully moved (MSW only)
+    wxDragLink,     // operation is a drag-link
     wxDragCancel    // the operation was cancelled by user (not an error)
 };
 
-inline WXDLLEXPORT bool wxIsDragResultOk(wxDragResult res)
-{
-    return res == wxDragCopy || res == wxDragMove;
-}
+// return true if res indicates that something was done during a dnd operation,
+// i.e. is neither error nor none nor cancel
+WXDLLEXPORT bool wxIsDragResultOk(wxDragResult res);
 
 // ----------------------------------------------------------------------------
 // wxDropSource is the object you need to create (and call DoDragDrop on it)
@@ -74,13 +86,15 @@ public:
 
     // start drag action, see enum wxDragResult for return value description
     //
-    // if bAllowMove is TRUE, data can be moved, if not - only copied
-    virtual wxDragResult DoDragDrop(bool bAllowMove = FALSE) = 0;
+    // if flags contains wxDrag_AllowMove, moving (and only copying) data is
+    // allowed, if it contains wxDrag_DefaultMove (which includes the previous
+    // flag), it is even the default operation
+    virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly) = 0;
 
     // override to give feedback depending on the current operation result
-    // "effect" and return TRUE if you did something, FALSE to let the library
+    // "effect" and return true if you did something, false to let the library
     // give the default feedback
-    virtual bool GiveFeedback(wxDragResult WXUNUSED(effect)) { return FALSE; }
+    virtual bool GiveFeedback(wxDragResult WXUNUSED(effect)) { return false; }
 
 protected:
     const wxCursor& GetCursor(wxDragResult res) const
@@ -93,10 +107,15 @@ protected:
             return m_cursorStop;
     }
 
+    // the data we're dragging
     wxDataObject *m_data;
 
     // the cursors to use for feedback
-    wxCursor      m_cursorCopy, m_cursorMove, m_cursorStop;
+    wxCursor m_cursorCopy,
+             m_cursorMove,
+             m_cursorStop;
+
+    DECLARE_NO_COPY_CLASS(wxDropSourceBase)
 };
 
 // ----------------------------------------------------------------------------
@@ -117,7 +136,7 @@ public:
     // by wxDropTarget and deleted by it automatically. If you don't give it
     // here, you can use SetDataObject() later.
     wxDropTargetBase(wxDataObject *dataObject = (wxDataObject*)NULL)
-        { m_dataObject = dataObject; }
+        { m_dataObject = dataObject; m_defaultAction = wxDragNone; }
     // dtor deletes our data object
     virtual ~wxDropTargetBase()
         { delete m_dataObject; }
@@ -153,7 +172,7 @@ public:
     virtual void OnLeave() { }
 
     // this function is called when data is dropped at position (x, y) - if it
-    // returns TRUE, OnData() will be called immediately afterwards which will
+    // returns true, OnData() will be called immediately afterwards which will
     // allow to retrieve the data dropped.
     virtual bool OnDrop(wxCoord x, wxCoord y) = 0;
 
@@ -165,11 +184,26 @@ public:
     virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def) = 0;
 
     // may be called *only* from inside OnData() and will fill m_dataObject
-    // with the data from the drop source if it returns TRUE
+    // with the data from the drop source if it returns true
     virtual bool GetData() = 0;
 
+    // sets the default action for drag and drop:
+    // use wxDragMove or wxDragCopy to set deafult action to move or copy
+    // and use wxDragNone (default) to set default action specified by
+    // initialization of draging (see wxDropSourceBase::DoDragDrop())
+    void SetDefaultAction(wxDragResult action)
+        { m_defaultAction = action; }
+
+    // returns default action for drag and drop or
+    // wxDragNone if this not specified
+    wxDragResult GetDefaultAction()
+        { return m_defaultAction; }
+
 protected:
     wxDataObject *m_dataObject;
+    wxDragResult m_defaultAction;
+
+    DECLARE_NO_COPY_CLASS(wxDropTargetBase)
 };
 
 // ----------------------------------------------------------------------------
@@ -181,16 +215,16 @@ protected:
     #include "wx/msw/ole/droptgt.h"
 #elif defined(__WXMOTIF__)
     #include "wx/motif/dnd.h"
-#elif defined(__WXGTK__)
+#elif defined(__WXX11__)
+    #include "wx/x11/dnd.h"
+#elif defined(__WXGTK20__)
     #include "wx/gtk/dnd.h"
-#elif defined(__WXQT__)
-    #include "wx/qt/dnd.h"
+#elif defined(__WXGTK__)
+    #include "wx/gtk1/dnd.h"
 #elif defined(__WXMAC__)
     #include "wx/mac/dnd.h"
 #elif defined(__WXPM__)
     #include "wx/os2/dnd.h"
-#elif defined(__WXSTUBS__)
-    #include "wx/stubs/dnd.h"
 #endif
 
 // ----------------------------------------------------------------------------
@@ -207,6 +241,9 @@ public:
     virtual bool OnDropText(wxCoord x, wxCoord y, const wxString& text) = 0;
 
     virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def);
+
+private:
+    DECLARE_NO_COPY_CLASS(wxTextDropTarget)
 };
 
 // A drop target which accepts files (dragged from File Manager or Explorer)
@@ -220,6 +257,9 @@ public:
                              const wxArrayString& filenames) = 0;
 
     virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def);
+
+private:
+    DECLARE_NO_COPY_CLASS(wxFileDropTarget)
 };
 
 #endif // wxUSE_DRAG_AND_DROP