3f66f6a5b3
This keyword is not expanded by Git which means it's not replaced with the correct revision value in the releases made using git-based scripts and it's confusing to have lines with unexpanded "$Id$" in the released files. As expanding them with Git is not that simple (it could be done with git archive and export-subst attribute) and there are not many benefits in having them in the first place, just remove all these lines. If nothing else, this will make an eventual transition to Git simpler. Closes #14487. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
90 lines
3.4 KiB
C++
90 lines
3.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/msw/ole/droptgt.h
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// Purpose: declaration of the wxDropTarget class
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 06.03.98
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// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_OLEDROPTGT_H
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#define _WX_OLEDROPTGT_H
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#if wxUSE_DRAG_AND_DROP
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// ----------------------------------------------------------------------------
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// forward declarations
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// ----------------------------------------------------------------------------
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class wxIDropTarget;
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struct wxIDropTargetHelper;
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struct IDataObject;
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// ----------------------------------------------------------------------------
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// An instance of the class wxDropTarget may be associated with any wxWindow
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// derived object via SetDropTarget() function. If this is done, the virtual
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// methods of wxDropTarget are called when something is dropped on the window.
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//
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// Note that wxDropTarget is an abstract base class (ABC) and you should derive
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// your own class from it implementing pure virtual function in order to use it
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// (all of them, including protected ones which are called by the class itself)
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxDropTarget : public wxDropTargetBase
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{
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public:
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// ctor & dtor
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wxDropTarget(wxDataObject *dataObject = NULL);
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virtual ~wxDropTarget();
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// normally called by wxWindow on window creation/destruction, but might be
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// called `manually' as well. Register() returns true on success.
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bool Register(WXHWND hwnd);
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void Revoke(WXHWND hwnd);
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// provide default implementation for base class pure virtuals
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virtual bool OnDrop(wxCoord x, wxCoord y);
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virtual bool GetData();
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// Can only be called during OnXXX methods.
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wxDataFormat GetMatchingPair();
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// implementation only from now on
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// -------------------------------
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// do we accept this kind of data?
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bool MSWIsAcceptedData(IDataObject *pIDataSource) const;
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// give us the data source from IDropTarget::Drop() - this is later used by
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// GetData() when it's called from inside OnData()
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void MSWSetDataSource(IDataObject *pIDataSource);
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// These functions take care of all things necessary to support native drag
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// images.
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//
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// {Init,End}DragImageSupport() are called during Register/Revoke,
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// UpdateDragImageOnXXX() functions are called on the corresponding drop
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// target events.
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void MSWInitDragImageSupport();
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void MSWEndDragImageSupport();
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void MSWUpdateDragImageOnData(wxCoord x, wxCoord y, wxDragResult res);
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void MSWUpdateDragImageOnDragOver(wxCoord x, wxCoord y, wxDragResult res);
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void MSWUpdateDragImageOnEnter(wxCoord x, wxCoord y, wxDragResult res);
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void MSWUpdateDragImageOnLeave();
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private:
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// helper used by IsAcceptedData() and GetData()
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wxDataFormat MSWGetSupportedFormat(IDataObject *pIDataSource) const;
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wxIDropTarget *m_pIDropTarget; // the pointer to our COM interface
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IDataObject *m_pIDataSource; // the pointer to the source data object
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wxIDropTargetHelper *m_dropTargetHelper; // the drop target helper
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wxDECLARE_NO_COPY_CLASS(wxDropTarget);
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};
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#endif //wxUSE_DRAG_AND_DROP
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#endif //_WX_OLEDROPTGT_H
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