Added some tentative wxMotif clipboard code; did some file formatting
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1408 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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@@ -1,22 +1,27 @@
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///////////////////////////////////////////////////////////////////////////////
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// Name: dnd.h
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// Purpose: Declaration of the wxDropTarget, wxDropSource class etc.
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// Purpose: declaration of wxDropTarget, wxDropSource classes
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// Author: Julian Smart
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// RCS-ID: $Id$
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// Copyright: (c) 1998 Julian Smart
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// Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling, Julian Smart
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_DND_H_
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#define _WX_DND_H_
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#ifdef __GNUG__
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#pragma interface "dnd.h"
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#pragma interface
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#endif
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#include "wx/defs.h"
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#if wxUSE_DRAG_AND_DROP
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#include "wx/object.h"
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#include "wx/string.h"
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#include "wx/dataobj.h"
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#include "wx/cursor.h"
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//-------------------------------------------------------------------------
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@@ -25,119 +30,13 @@
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class WXDLLEXPORT wxWindow;
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class WXDLLEXPORT wxDataObject;
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class WXDLLEXPORT wxTextDataObject;
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class WXDLLEXPORT wxFileDataObject;
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class WXDLLEXPORT wxDropTarget;
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class WXDLLEXPORT wxTextDropTarget;
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class WXDLLEXPORT wxFileDropTarget;
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class WXDLLEXPORT wxPrivateDropTarget;
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class WXDLLEXPORT wxDropSource;
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//-------------------------------------------------------------------------
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// wxDataObject
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//-------------------------------------------------------------------------
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class WXDLLEXPORT wxDataObject: public wxObject
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{
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public:
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// all data formats (values are the same as in windows.h, do not change!)
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enum StdFormat
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{
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Invalid,
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Text,
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Bitmap,
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MetafilePict,
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Sylk,
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Dif,
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Tiff,
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OemText,
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Dib,
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Palette,
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Pendata,
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Riff,
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Wave,
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UnicodeText,
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EnhMetafile,
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Hdrop,
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Locale,
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Max
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};
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// function to return symbolic name of clipboard format (debug messages)
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static const char *GetFormatName(wxDataFormat format);
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// ctor & dtor
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wxDataObject() {};
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~wxDataObject() {};
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// pure virtuals to override
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// get the best suited format for our data
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virtual wxDataFormat GetPreferredFormat() const = 0;
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// decide if we support this format (should be one of values of
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// StdFormat enumerations or a user-defined format)
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virtual bool IsSupportedFormat(wxDataFormat format) const = 0;
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// get the (total) size of data
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virtual size_t GetDataSize() const = 0;
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// copy raw data to provided pointer
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virtual void GetDataHere(void *pBuf) const = 0;
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};
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// ----------------------------------------------------------------------------
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// wxTextDataObject is a specialization of wxDataObject for text data
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxTextDataObject : public wxDataObject
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{
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public:
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// ctors
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wxTextDataObject() { }
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wxTextDataObject(const wxString& strText) : m_strText(strText) { }
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void Init(const wxString& strText) { m_strText = strText; }
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// implement base class pure virtuals
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virtual wxDataFormat GetPreferredFormat() const
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{ return wxDF_TEXT; }
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virtual bool IsSupportedFormat(wxDataFormat format) const
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{ return format == wxDF_TEXT; }
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virtual size_t GetDataSize() const
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{ return m_strText.Len() + 1; } // +1 for trailing '\0'of course
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virtual void GetDataHere(void *pBuf) const
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{ memcpy(pBuf, m_strText.c_str(), GetDataSize()); }
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private:
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wxString m_strText;
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};
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// ----------------------------------------------------------------------------
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// wxFileDataObject is a specialization of wxDataObject for file names
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxFileDataObject : public wxDataObject
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{
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public:
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wxFileDataObject(void) { }
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void AddFile( const wxString &file )
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{ m_files += file; m_files += ";"; }
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// implement base class pure virtuals
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virtual wxDataFormat GetPreferredFormat() const
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{ return wxDF_FILENAME; }
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virtual bool IsSupportedFormat(wxDataFormat format) const
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{ return format == wxDF_FILENAME; }
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virtual size_t GetDataSize() const
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{ return m_files.Len() + 1; } // +1 for trailing '\0'of course
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virtual void GetDataHere(void *pBuf) const
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{ memcpy(pBuf, m_files.c_str(), GetDataSize()); }
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private:
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wxString m_files;
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};
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//-------------------------------------------------------------------------
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// wxDropTarget
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//-------------------------------------------------------------------------
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@@ -151,16 +50,14 @@ class WXDLLEXPORT wxDropTarget: public wxObject
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virtual void OnEnter() { }
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virtual void OnLeave() { }
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virtual bool OnDrop( long x, long y, const void *pData ) = 0;
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virtual bool OnDrop( long x, long y, const void *data, size_t size ) = 0;
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// protected:
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friend wxWindow;
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// Override these to indicate what kind of data you support:
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virtual size_t GetFormatCount() const = 0;
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virtual wxDataFormat GetFormat(size_t n) const = 0;
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// implementation
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};
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//-------------------------------------------------------------------------
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@@ -172,7 +69,7 @@ class WXDLLEXPORT wxTextDropTarget: public wxDropTarget
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public:
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wxTextDropTarget() {};
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virtual bool OnDrop( long x, long y, const void *pData );
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virtual bool OnDrop( long x, long y, const void *data, size_t size );
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virtual bool OnDropText( long x, long y, const char *psz );
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protected:
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@@ -181,6 +78,36 @@ class WXDLLEXPORT wxTextDropTarget: public wxDropTarget
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virtual wxDataFormat GetFormat(size_t n) const;
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};
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//-------------------------------------------------------------------------
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// wxPrivateDropTarget
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//-------------------------------------------------------------------------
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class WXDLLEXPORT wxPrivateDropTarget: public wxDropTarget
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{
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public:
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wxPrivateDropTarget();
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// you have to override OnDrop to get at the data
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// the string ID identifies the format of clipboard or DnD data. a word
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// processor would e.g. add a wxTextDataObject and a wxPrivateDataObject
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// to the clipboard - the latter with the Id "WXWORD_FORMAT".
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void SetId( const wxString& id )
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{ m_id = id; }
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wxString GetId()
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{ return m_id; }
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private:
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virtual size_t GetFormatCount() const;
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virtual wxDataFormat GetFormat(size_t n) const;
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wxString m_id;
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};
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// ----------------------------------------------------------------------------
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// A drop target which accepts files (dragged from File Manager or Explorer)
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// ----------------------------------------------------------------------------
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@@ -191,9 +118,9 @@ class WXDLLEXPORT wxFileDropTarget: public wxDropTarget
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wxFileDropTarget() {};
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virtual bool OnDrop(long x, long y, const void *pData);
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virtual bool OnDrop( long x, long y, const void *data, size_t size );
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virtual bool OnDropFiles( long x, long y,
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size_t nFiles, const char * const aszFiles[]);
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size_t nFiles, const char * const aszFiles[] );
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protected:
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@@ -205,14 +132,14 @@ class WXDLLEXPORT wxFileDropTarget: public wxDropTarget
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// wxDropSource
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//-------------------------------------------------------------------------
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enum wxDragResult
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{
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wxDragError, // error prevented the d&d operation from completing
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wxDragNone, // drag target didn't accept the data
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wxDragCopy, // the data was successfully copied
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wxDragMove, // the data was successfully moved
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wxDragCancel // the operation was cancelled by user (not an error)
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};
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enum wxDragResult
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{
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wxDragError, // error prevented the d&d operation from completing
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wxDragNone, // drag target didn't accept the data
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wxDragCopy, // the data was successfully copied
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wxDragMove, // the data was successfully moved
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wxDragCancel // the operation was cancelled by user (not an error)
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};
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class WXDLLEXPORT wxDropSource: public wxObject
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{
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@@ -227,12 +154,25 @@ class WXDLLEXPORT wxDropSource: public wxObject
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wxDragResult DoDragDrop( bool bAllowMove = FALSE );
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virtual bool GiveFeedback( wxDragResult WXUNUSED(effect), bool WXUNUSED(bScrolling) ) { return TRUE; };
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protected:
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// implementation
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#if 0
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void RegisterWindow(void);
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void UnregisterWindow(void);
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wxWindow *m_window;
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wxDragResult m_retValue;
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wxDataObject *m_data;
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wxCursor m_defaultCursor;
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wxCursor m_goaheadCursor;
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#endif
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};
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#endif
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// wxUSE_DRAG_AND_DROP
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#endif
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//_WX_DND_H_
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