drag & drop implemented
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13276 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Csomor
parent
f5705626fe
commit
8400ad1ed6
@ -14,9 +14,13 @@
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#pragma interface "dnd.h"
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#endif
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#if wxUSE_DRAG_AND_DROP
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#include "wx/defs.h"
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#include "wx/object.h"
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#include "wx/string.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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@ -25,212 +29,81 @@
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class WXDLLEXPORT wxWindow;
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#ifndef __DARWIN__
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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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#endif
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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 wxDropSource;
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#ifndef __DARWIN__
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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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// macros
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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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#endif
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// this macro may be used instead for wxDropSource ctor arguments: it will use
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// the icon 'name' from an XPM file under GTK, but will expand to something
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// else under MSW. If you don't use it, you will have to use #ifdef in the
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// application code.
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#define wxDROP_ICON(name) wxICON(name)
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//-------------------------------------------------------------------------
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// wxDropTarget
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//-------------------------------------------------------------------------
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class WXDLLEXPORT wxDropTarget: public wxObject
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class WXDLLEXPORT wxDropTarget: public wxDropTargetBase
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{
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public:
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wxDropTarget();
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~wxDropTarget();
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virtual void OnEnter() { }
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virtual void OnLeave() { }
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virtual bool OnDrop( wxCoord x, wxCoord y, const void *pData ) = 0;
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wxDropTarget(wxDataObject *dataObject = (wxDataObject*) NULL );
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// protected:
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friend class wxWindow;
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virtual wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def);
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virtual bool OnDrop(wxCoord x, wxCoord y);
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virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def);
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virtual bool GetData();
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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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bool CurrentDragHasSupportedFormat() ;
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void SetCurrentDrag( DragReference drag ) { m_currentDrag = drag ; }
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DragReference GetCurrentDrag() { return m_currentDrag ; }
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protected :
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DragReference m_currentDrag ;
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};
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#ifndef __DARWIN__
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//-------------------------------------------------------------------------
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// wxTextDropTarget
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//-------------------------------------------------------------------------
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class WXDLLEXPORT wxTextDropTarget: public wxDropTarget
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{
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public:
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wxTextDropTarget() {};
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virtual bool OnDrop( wxCoord x, wxCoord y, const void *pData );
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virtual bool OnDropText( wxCoord x, wxCoord y, const char *psz );
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protected:
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virtual size_t GetFormatCount() const;
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virtual wxDataFormat GetFormat(size_t n) const;
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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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class WXDLLEXPORT wxFileDropTarget: public wxDropTarget
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{
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public:
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wxFileDropTarget() {};
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virtual bool OnDrop(wxCoord x, wxCoord y, const void *pData);
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virtual bool OnDropFiles( wxCoord x, wxCoord y,
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size_t nFiles, const char * const aszFiles[]);
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protected:
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virtual size_t GetFormatCount() const;
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virtual wxDataFormat GetFormat(size_t n) const;
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};
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#endif
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//-------------------------------------------------------------------------
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// wxDropSource
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//-------------------------------------------------------------------------
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class WXDLLEXPORT wxDropSource: public wxObject
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class WXDLLEXPORT wxDropSource: public wxDropSourceBase
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{
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public:
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public:
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/* constructor. set data later with SetData() */
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wxDropSource( wxWindow *win = (wxWindow *)NULL,
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const wxIcon © = wxNullIcon,
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const wxIcon &move = wxNullIcon,
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const wxIcon &none = wxNullIcon);
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wxDropSource( wxWindow *win );
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wxDropSource( wxDataObject &data, wxWindow *win );
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~wxDropSource(void);
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void SetData( wxDataObject &data );
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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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/* constructor for setting one data object */
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wxDropSource( wxDataObject& data,
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wxWindow *win,
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const wxIcon © = wxNullIcon,
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const wxIcon &move = wxNullIcon,
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const wxIcon &none = wxNullIcon);
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protected:
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wxDataObject *m_data;
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~wxDropSource();
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/* start drag action */
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virtual wxDragResult DoDragDrop( bool bAllowMove = FALSE );
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wxWindow* GetWindow() { return m_window ; }
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void SetCurrentDrag( DragReference drag ) { m_currentDrag = drag ; }
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DragReference GetCurrentDrag() { return m_currentDrag ; }
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protected :
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wxWindow *m_window;
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DragReference m_currentDrag ;
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};
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#endif
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// D&D
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#endif
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//_WX_DND_H_
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@ -121,38 +121,29 @@ bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, int x1, int y
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// ----------------------------------------------------------------------------
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#if wxUSE_DATAOBJ
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class WXDLLEXPORT wxMetafileDataObject : public wxDataObject
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class WXDLLEXPORT wxMetafileDataObject : public wxDataObjectSimple
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{
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public:
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// ctors
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wxMetafileDataObject() { m_width = 0; m_height = 0; };
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wxMetafileDataObject(const wxMetafile& metafile, int width = 0, int height = 0):
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m_metafile(metafile), m_width(width), m_height(height) { }
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wxMetafileDataObject()
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: wxDataObjectSimple(wxDF_METAFILE) { };
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wxMetafileDataObject(const wxMetafile& metafile)
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: wxDataObjectSimple(wxDF_METAFILE), m_metafile(metafile) { }
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void SetMetafile(const wxMetafile& metafile, int w = 0, int h = 0)
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{ m_metafile = metafile; m_width = w; m_height = h; }
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wxMetafile GetMetafile() const { return m_metafile; }
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int GetWidth() const { return m_width; }
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int GetHeight() const { return m_height; }
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// virtual functions which you may override if you want to provide data on
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// demand only - otherwise, the trivial default versions will be used
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virtual void SetMetafile(const wxMetafile& metafile)
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{ m_metafile = metafile; }
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virtual wxMetafile GetMetafile() const
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{ return m_metafile; }
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virtual wxDataFormat GetFormat() const { return wxDF_METAFILE; }
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// implement base class pure virtuals
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virtual size_t GetDataSize() const;
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virtual bool GetDataHere(void *buf) const;
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virtual bool SetData(size_t len, const void *buf);
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/* ??
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// implement base class pure virtuals
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virtual wxDataFormat GetPreferredFormat() const
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{ return (wxDataFormat) wxDataObject::Text; }
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virtual bool IsSupportedFormat(wxDataFormat format) const
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{ return format == wxDataObject::Text || format == wxDataObject::Locale; }
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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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*/
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private:
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protected:
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wxMetafile m_metafile;
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int m_width;
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int m_height;
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};
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#endif
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@ -214,6 +214,7 @@ public:
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public :
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static bool MacGetWindowFromPoint( const wxPoint &point , wxWindowMac** outWin ) ;
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virtual bool MacGetWindowFromPointSub( const wxPoint &point , wxWindowMac** outWin ) ;
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virtual void MacRedraw( RgnHandle updatergn , long time , bool erase) ;
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virtual bool MacCanFocus() const { return true ; }
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@ -248,7 +249,6 @@ public :
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bool MacIsWindowScrollbar( const wxScrollBar* sb ) { return (m_hScrollBar == sb || m_vScrollBar == sb) ; }
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static wxWindowMac* s_lastMouseWindow ;
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private:
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virtual bool MacGetWindowFromPointSub( const wxPoint &point , wxWindowMac** outWin ) ;
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protected:
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// RgnHandle m_macUpdateRgn ;
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// bool m_macEraseOnRedraw ;
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