X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2e1a688e3e9c6c265620e4f05d579077367e9fdb..4e2251ecd324ba89c486434485efcb1d32ee7dca:/include/wx/os2/dnd.h diff --git a/include/wx/os2/dnd.h b/include/wx/os2/dnd.h index 980be8b731..2750c04c16 100644 --- a/include/wx/os2/dnd.h +++ b/include/wx/os2/dnd.h @@ -1,257 +1,99 @@ /////////////////////////////////////////////////////////////////////////////// // Name: dnd.h -// Purpose: Declaration of the wxDropTarget, wxDropSource class etc. -// Author: AUTHOR +// Purpose: declaration of the wxDropTarget class +// Author: David Webster +// Modified by: +// Created: 10/21/99 // RCS-ID: $Id$ -// Copyright: (c) 1998 AUTHOR +// Copyright: (c) 1999 David Webster // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -#ifndef _WX_DND_H_ -#define _WX_DND_H_ -#ifdef __GNUG__ -#pragma interface "dnd.h" -#endif - -#include "wx/defs.h" -#include "wx/object.h" -#include "wx/string.h" -#include "wx/cursor.h" - -//------------------------------------------------------------------------- -// classes -//------------------------------------------------------------------------- +#ifndef __OS2DNDH__ +#define __OS2DNDH__ -class WXDLLEXPORT wxWindow; +#if !wxUSE_DRAG_AND_DROP + #error "You should #define wxUSE_DRAG_AND_DROP to 1 to compile this file!" +#endif //WX_DRAG_DROP -class WXDLLEXPORT wxDataObject; -class WXDLLEXPORT wxTextDataObject; -class WXDLLEXPORT wxFileDataObject; - -class WXDLLEXPORT wxDropTarget; -class WXDLLEXPORT wxTextDropTarget; -class WXDLLEXPORT wxFileDropTarget; +#define INCL_WINSTDDRAG +#include +#ifndef __EMX__ +#include +#endif -class WXDLLEXPORT wxDropSource; +class CIDropTarget; //------------------------------------------------------------------------- -// wxDataBroker (internal) +// wxDropSource //------------------------------------------------------------------------- -class wxDataBroker : public wxObject +class WXDLLEXPORT wxDropSource: public wxDropSourceBase { - DECLARE_CLASS( wxDataBroker ) - public: + /* constructor. set data later with SetData() */ + wxDropSource(wxWindow* pWin); - /* constructor */ - wxDataBroker(); - - /* add data object */ - void Add( wxDataObject *dataObject, bool preferred = FALSE ); - -private: - - /* OLE implementation, the methods don't need to be overridden */ - - /* get number of supported formats */ - virtual size_t GetFormatCount() const; - - /* return nth supported format */ - virtual wxDataFormat &GetNthFormat( size_t nth ) const; - - /* return preferrd/best supported format */ - virtual wxDataFormatId GetPreferredFormat() const; - - /* search through m_dataObjects, return TRUE if found */ - virtual bool IsSupportedFormat( wxDataFormat &format ) const; - - /* search through m_dataObjects and call child's GetSize() */ - virtual size_t GetSize( wxDataFormat& format ) const; + /* constructor for setting one data object */ + wxDropSource( wxDataObject& rData, + wxWindow* pWin + ); + virtual ~wxDropSource(); - /* search through m_dataObjects and call child's WriteData(dest) */ - virtual void WriteData( wxDataFormat& format, void *dest ) const; + /* start drag action */ + virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly); + virtual bool GiveFeedback(wxDragResult eEffect); - /* implementation */ +protected: + void Init(void); -public: - - wxList m_dataObjects; - size_t m_preferred; -}; + ULONG m_ulItems; + PDRAGINFO m_pDragInfo; + DRAGIMAGE m_vDragImage; + PDRAGITEM m_pDragItem; + wxWindow* m_pWindow; +}; // end of CLASS wxDropSource //------------------------------------------------------------------------- -// wxDataObject +// wxDropTarget //------------------------------------------------------------------------- -class WXDLLEXPORT wxDataObject: public wxDataObjectBase -{ -public: - // all data formats (values are the same as in windows.h, do not change!) - enum StdFormat - { - Invalid, - Text, - Bitmap, - MetafilePict, - Sylk, - Dif, - Tiff, - OemText, - Dib, - Palette, - Pendata, - Riff, - Wave, - UnicodeText, - EnhMetafile, - Hdrop, - Locale, - Max - }; - - // function to return symbolic name of clipboard format (debug messages) - static const char *GetFormatName(wxDataFormat format); - - // ctor & dtor - wxDataObject() {}; - ~wxDataObject() {}; - - // pure virtuals to override - // get the best suited format for our data - virtual wxDataFormat GetPreferredFormat() const = 0; - // decide if we support this format (should be one of values of - // StdFormat enumerations or a user-defined format) - virtual bool IsSupportedFormat(wxDataFormat format) const = 0; - // get the (total) size of data - virtual size_t GetDataSize() const = 0; - // copy raw data to provided pointer - virtual bool GetDataHere(void *pBuf) const = 0; - -}; - -// ---------------------------------------------------------------------------- -// wxFileDataObject is a specialization of wxDataObject for file names -// ---------------------------------------------------------------------------- - -class WXDLLEXPORT wxFileDataObject : public wxDataObject +class WXDLLEXPORT wxDropTarget : public wxDropTargetBase { public: - - wxFileDataObject(void) { } - void AddFile( const wxString &file ) - { m_files += file; m_files += ";"; } - - // implement base class pure virtuals - virtual wxDataFormat GetPreferredFormat() const - { return wxDF_FILENAME; } - virtual bool IsSupportedFormat(wxDataFormat format) const - { return format == (unsigned short)wxDF_FILENAME; } - virtual size_t GetDataSize() const - { return m_files.Len() + 1; } // +1 for trailing '\0'of course - virtual bool GetDataHere(void *pBuf) const - { memcpy(pBuf, m_files.c_str(), GetDataSize()); } + wxDropTarget(wxDataObject* pDataObject = (wxDataObject*)NULL); + virtual ~wxDropTarget(); + + // + // These functions are called when data is moved over position (x, y) and + // may return either wxDragCopy, wxDragMove or wxDragNone depending on + // what would happen if the data were dropped here. + // + // The last parameter is what would happen by default and is determined by + // the platform-specific logic (for example, under Windows it's wxDragCopy + // if Ctrl key is pressed and wxDragMove otherwise) except that it will + // always be wxDragNone if the carried data is in an unsupported format. + // + // OnData must be implemented and other should be overridden by derived classes + // + virtual wxDragResult OnData( wxCoord vX + ,wxCoord vY + ,wxDragResult eResult + ); + virtual bool OnDrop( wxCoord vX + ,wxCoord vY + ); + bool IsAcceptedData(PDRAGINFO pDataSource) const; + +protected: + virtual bool GetData(void); + wxDataFormat GetSupportedFormat(PDRAGINFO pDataSource) const; + void Release(void); private: - wxString m_files; - -}; -//------------------------------------------------------------------------- -// wxDropTarget -//------------------------------------------------------------------------- - -class WXDLLEXPORT wxDropTarget: public wxObject -{ - public: - - wxDropTarget(); - ~wxDropTarget(); - - virtual void OnEnter() { } - virtual void OnLeave() { } - virtual bool OnDrop( long x, long y, const void *pData ) = 0; - -// protected: - - friend wxWindow; - - // Override these to indicate what kind of data you support: - - virtual size_t GetFormatCount() const = 0; - virtual wxDataFormat GetFormat(size_t n) const = 0; -}; - -//------------------------------------------------------------------------- -// wxTextDropTarget -//------------------------------------------------------------------------- - -class WXDLLEXPORT wxTextDropTarget: public wxDropTarget -{ - public: - - wxTextDropTarget() {}; - virtual bool OnDrop( long x, long y, const void *pData ); - virtual bool OnDropText( long x, long y, const char *psz ); - - protected: - - virtual size_t GetFormatCount() const; - virtual wxDataFormat GetFormat(size_t n) const; -}; - -// ---------------------------------------------------------------------------- -// A drop target which accepts files (dragged from File Manager or Explorer) -// ---------------------------------------------------------------------------- - -class WXDLLEXPORT wxFileDropTarget: public wxDropTarget -{ - public: + CIDropTarget* m_pDropTarget; +}; // end of CLASS wxDropTarget - wxFileDropTarget() {}; - - virtual bool OnDrop(long x, long y, const void *pData); - virtual bool OnDropFiles( long x, long y, - size_t nFiles, const char * const aszFiles[]); - - protected: - - virtual size_t GetFormatCount() const; - virtual wxDataFormat GetFormat(size_t n) const; -}; - -//------------------------------------------------------------------------- -// wxDropSource -//------------------------------------------------------------------------- - -enum wxDragResult - { - wxDragError, // error prevented the d&d operation from completing - wxDragNone, // drag target didn't accept the data - wxDragCopy, // the data was successfully copied - wxDragMove, // the data was successfully moved - wxDragCancel // the operation was cancelled by user (not an error) - }; - -class WXDLLEXPORT wxDropSource: public wxObject -{ - public: - - wxDropSource( wxWindow *win ); - wxDropSource( wxDataObject &data, wxWindow *win ); - - ~wxDropSource(void); - - void SetData( wxDataObject &data ); - wxDragResult DoDragDrop( bool bAllowMove = FALSE ); - - virtual bool GiveFeedback( wxDragResult WXUNUSED(effect), bool WXUNUSED(bScrolling) ) { return TRUE; }; - - protected: - - wxDataObject *m_data; -}; - -#endif - //_WX_DND_H_ +#endif //__OS2DNDH__