// Author: Vadim Zeitlin, Robert Roebling
// 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_
// 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
{
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
+WXDLLIMPEXP_CORE bool wxIsDragResultOk(wxDragResult res);
// ----------------------------------------------------------------------------
// wxDropSource is the object you need to create (and call DoDragDrop on it)
// to initiate a drag-and-drop operation
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxDropSourceBase
+class WXDLLIMPEXP_CORE wxDropSourceBase
{
public:
wxDropSourceBase(const wxCursor &cursorCopy = wxNullCursor,
: m_cursorCopy(cursorCopy),
m_cursorMove(cursorMove),
m_cursorStop(cursorStop)
- { m_data = (wxDataObject *)NULL; }
+ { m_data = NULL; }
virtual ~wxDropSourceBase() { }
- // set the data which is transfered by drag and drop
+ // set the data which is transferred by drag and drop
void SetData(wxDataObject& data)
{ m_data = &data; }
// 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
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;
+
+ wxDECLARE_NO_COPY_CLASS(wxDropSourceBase);
};
// ----------------------------------------------------------------------------
// OnData() is called)
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxDropTargetBase
+class WXDLLIMPEXP_CORE wxDropTargetBase
{
public:
// ctor takes a pointer to heap-allocated wxDataObject which will be owned
// 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; }
+ wxDropTargetBase(wxDataObject *dataObject = NULL)
+ { m_dataObject = dataObject; m_defaultAction = wxDragNone; }
// dtor deletes our data object
virtual ~wxDropTargetBase()
{ delete m_dataObject; }
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;
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;
+
+ wxDECLARE_NO_COPY_CLASS(wxDropTargetBase);
};
// ----------------------------------------------------------------------------
#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"
+ #include "wx/osx/dnd.h"
#elif defined(__WXPM__)
#include "wx/os2/dnd.h"
-#elif defined(__WXSTUBS__)
- #include "wx/stubs/dnd.h"
#endif
// ----------------------------------------------------------------------------
// A simple wxDropTarget derived class for text data: you only need to
// override OnDropText() to get something working
-class WXDLLEXPORT wxTextDropTarget : public wxDropTarget
+class WXDLLIMPEXP_CORE wxTextDropTarget : public wxDropTarget
{
public:
wxTextDropTarget();
virtual bool OnDropText(wxCoord x, wxCoord y, const wxString& text) = 0;
virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def);
+
+private:
+ wxDECLARE_NO_COPY_CLASS(wxTextDropTarget);
};
// A drop target which accepts files (dragged from File Manager or Explorer)
-class WXDLLEXPORT wxFileDropTarget : public wxDropTarget
+class WXDLLIMPEXP_CORE wxFileDropTarget : public wxDropTarget
{
public:
wxFileDropTarget();
const wxArrayString& filenames) = 0;
virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def);
+
+private:
+ wxDECLARE_NO_COPY_CLASS(wxFileDropTarget);
};
#endif // wxUSE_DRAG_AND_DROP
projects / wxWidgets.git / blobdiff