X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0e320a79f187558effb04d92020b470372bbe456..0cdf89abb10990c7f0152aabc464425a5478157f:/include/wx/os2/dnd.h diff --git a/include/wx/os2/dnd.h b/include/wx/os2/dnd.h index 105192154f..60efc76fe8 100644 --- a/include/wx/os2/dnd.h +++ b/include/wx/os2/dnd.h @@ -1,275 +1,121 @@ /////////////////////////////////////////////////////////////////////////////// // 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 -// Licence: wxWindows licence +// Copyright: (c) 1999 David Webster +// Licence: wxWindows license /////////////////////////////////////////////////////////////////////////////// -#ifndef _WX_DND_H_ -#define _WX_DND_H_ + +#ifndef __OS2DNDH__ +#define __OS2DNDH__ #ifdef __GNUG__ -#pragma interface "dnd.h" +#pragma interface #endif -#include "wx/defs.h" -#include "wx/object.h" -#include "wx/string.h" -#include "wx/cursor.h" +#if !wxUSE_DRAG_AND_DROP + #error "You should #define wxUSE_DRAG_AND_DROP to 1 to compile this file!" +#endif //WX_DRAG_DROP //------------------------------------------------------------------------- -// classes -//------------------------------------------------------------------------- - -class WXDLLEXPORT wxWindow; - -class WXDLLEXPORT wxDataObject; -class WXDLLEXPORT wxTextDataObject; -class WXDLLEXPORT wxFileDataObject; - -class WXDLLEXPORT wxDropTarget; -class WXDLLEXPORT wxTextDropTarget; -class WXDLLEXPORT wxFileDropTarget; - -class WXDLLEXPORT wxDropSource; - -//------------------------------------------------------------------------- -// wxDataFormat (internal) +// wxDropSource //------------------------------------------------------------------------- -class wxDataFormat : public wxObject +class WXDLLEXPORT wxDropSource: public wxDropSourceBase { - DECLARE_CLASS( wxDataFormat ) - public: - wxDataFormat(); - wxDataFormat( wxDataFormatId type ); - wxDataFormat( const wxString &id ); - wxDataFormat( const wxChar *id ); - wxDataFormat( const wxDataFormat &format ); - - void SetType( wxDataFormatId type ); - wxDataFormatId GetType() const; + /* constructor. set data later with SetData() */ + wxDropSource(wxWindow* pWin); - /* the string Id identifies the format of clipboard or DnD data. a word - * processor would e.g. add a wxTextDataObject and a wxPrivateDataObject - * to the clipboard - the latter with the Id "application/wxword", an - * image manipulation program would put a wxBitmapDataObject and a - * wxPrivateDataObject to the clipboard - the latter with "image/png". */ + /* constructor for setting one data object */ + wxDropSource( wxDataObject& rData, + wxWindow* pWin, + ); + virtual ~wxDropSource(); - wxString GetId() const; - void SetId( const wxChar *id ); + /* start drag action */ + virtual wxDragResult DoDragDrop(bool bAllowMove = FALSE); - // implicit conversion to wxDataFormatId - operator wxDataFormatId() const { return m_type; } +protected: + void Init(void); + bool m_bLazyDrag; - bool operator==(wxDataFormatId type) const { return m_type == type; } - bool operator!=(wxDataFormatId type) const { return m_type != type; } - -private: - wxDataFormatId m_type; - wxString m_id; + DRAGIMAGE* m_pDragImage; + DRAGINFO* m_pDragInfo; + DRAGTRANSFER* m_pDragTransfer; }; + //------------------------------------------------------------------------- -// wxDataObject +// wxDropTarget //------------------------------------------------------------------------- -class WXDLLEXPORT wxDataObject: public wxObject +class WXDLLEXPORT wxDropTarget: public wxDropTargetBase { 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 - }; + wxDropTarget(wxDataObject *dataObject = (wxDataObject*)NULL); + virtual ~wxDropTarget(); - // function to return symbolic name of clipboard format (debug messages) - static const char *GetFormatName(wxDataFormat format); + void Register(WXHWND hwnd); + void Revoke(WXHWND hwnd); - // ctor & dtor - wxDataObject() {}; - ~wxDataObject() {}; + virtual wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def); + virtual bool OnDrop(wxCoord x, wxCoord y); + virtual bool OnData(wxCoord x, wxCoord y); + virtual bool GetData(); - // 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 void GetDataHere(void *pBuf) const = 0; + // implementation +protected: + virtual bool IsAcceptable(DRAGINFO* pInfo); + DRAGINFO* m_pDragInfo; + DRAGTRANSFER* m_pDragTransfer; }; // ---------------------------------------------------------------------------- -// wxTextDataObject is a specialization of wxDataObject for text data +// A simple wxDropTarget derived class for text data: you only need to +// override OnDropText() to get something working // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxTextDataObject : public wxDataObject +class WXDLLEXPORT wxTextDropTarget : public wxDropTarget { public: - // ctors - wxTextDataObject() { } - wxTextDataObject(const wxString& strText) : m_strText(strText) { } - void Init(const wxString& strText) { m_strText = strText; } - - // implement base class pure virtuals - virtual wxDataFormat GetPreferredFormat() const - { return wxDF_TEXT; } - virtual bool IsSupportedFormat(wxDataFormat format) const - { return format == wxDF_TEXT; } - virtual size_t GetDataSize() const - { return m_strText.Len() + 1; } // +1 for trailing '\0'of course - virtual void GetDataHere(void *pBuf) const - { memcpy(pBuf, m_strText.c_str(), GetDataSize()); } + wxTextDropTarget(); + virtual ~wxTextDropTarget(); -private: - wxString m_strText; + virtual bool OnDropText( wxCoord x + ,wxCoord y + ,const wxString& rText + ) = 0; -}; - -// ---------------------------------------------------------------------------- -// wxFileDataObject is a specialization of wxDataObject for file names -// ---------------------------------------------------------------------------- - -class WXDLLEXPORT wxFileDataObject : public wxDataObject -{ -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 == wxDF_FILENAME; } - virtual size_t GetDataSize() const - { return m_files.Len() + 1; } // +1 for trailing '\0'of course - virtual void GetDataHere(void *pBuf) const - { memcpy(pBuf, m_files.c_str(), GetDataSize()); } - -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; + virtual bool OnData( wxCoord x + ,wxCoord y + ); }; // ---------------------------------------------------------------------------- // A drop target which accepts files (dragged from File Manager or Explorer) // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxFileDropTarget: public wxDropTarget +class WXDLLEXPORT wxFileDropTarget : public wxDropTarget { - public: - - 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; +public: + wxFileDropTarget(); + virtual ~wxFileDropTarget(); + + // parameters are the number of files and the array of file names + virtual bool OnDropFiles( wxCoord x + ,wxCoord y + ,const wxArrayString& rFilenames + ) = 0; + + virtual bool OnData( wxCoord x + ,wxCoord y + ); }; -#endif - //_WX_DND_H_ +#endif //__OS2DNDH__