X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ab8884aca6f480f3568167c7fe592a03e7e102b2..a419c3b116bef0b1e58e2ed0aea6ed0d053f7c21:/include/wx/gtk1/dataobj.h diff --git a/include/wx/gtk1/dataobj.h b/include/wx/gtk1/dataobj.h index 6ec2a94b87..d79e1b63c8 100644 --- a/include/wx/gtk1/dataobj.h +++ b/include/wx/gtk1/dataobj.h @@ -23,6 +23,8 @@ // classes //------------------------------------------------------------------------- +class wxDataFormat; +class wxDataBroker; class wxDataObject; class wxTextDataObject; class wxBitmapDataObject; @@ -30,147 +32,232 @@ class wxPrivateDataObject; class wxFileDataObject; //------------------------------------------------------------------------- -// wxDataObject +// wxDataFormat (internal) //------------------------------------------------------------------------- -class wxDataObject: public wxObject +class wxDataFormat : public wxObject { - DECLARE_ABSTRACT_CLASS( wxDataObject ) +public: + wxDataFormat(); + wxDataFormat( wxDataFormatId type ); + wxDataFormat( const wxString &id ); + wxDataFormat( const wxChar *id ); + wxDataFormat( const wxDataFormat &format ); + wxDataFormat( const GdkAtom atom ); + + void SetType( wxDataFormatId type ); + wxDataFormatId GetType() const; + + /* 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". */ + + wxString GetId() const; + void SetId( const wxChar *id ); + + GdkAtom GetAtom(); + void SetAtom(GdkAtom atom) { m_hasAtom = TRUE; m_atom = atom; } + + // implicit conversion to wxDataFormatId + operator wxDataFormatId() const { return m_type; } + 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; + bool m_hasAtom; + GdkAtom m_atom; + + void PrepareFormats(); + +private: + DECLARE_CLASS( wxDataFormat ) +}; + +//------------------------------------------------------------------------- +// wxDataBroker (internal) +//------------------------------------------------------------------------- + +class wxDataBroker : public wxObject +{ public: + /* constructor */ + wxDataBroker(); - wxDataObject() {} - ~wxDataObject() {} + /* add data object */ + void Add( wxDataObject *dataObject, bool preferred = FALSE ); - virtual wxDataFormat GetFormat() const = 0; - - // implementation +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; + + /* search through m_dataObjects and call child's WriteData(dest) */ + virtual void WriteData( wxDataFormat& format, void *dest ) const; + +public: + /* implementation */ + wxList m_dataObjects; + size_t m_preferred; - GdkAtom m_formatAtom; +private: + DECLARE_CLASS( wxDataBroker ) }; -// ---------------------------------------------------------------------------- -// wxTextDataObject is a specialization of wxDataObject for text data -// ---------------------------------------------------------------------------- +//---------------------------------------------------------------------------- +// wxDataObject to be placed in wxDataBroker +//---------------------------------------------------------------------------- -class wxTextDataObject : public wxDataObject +class wxDataObject : public wxObject { - DECLARE_DYNAMIC_CLASS( wxTextDataObject ) - public: + /* constructor */ + wxDataObject(); - wxTextDataObject() {} - wxTextDataObject( const wxString& strText ) - : m_strText(strText) { } - - virtual wxDataFormat GetFormat() const - { return wxDF_TEXT; } - - void SetText( const wxString& strText) - { m_strText = strText; } + /* destructor */ + ~wxDataObject(); + + /* write data to dest */ + virtual void WriteData( void *dest ) const = 0; + + /* get size of data */ + virtual size_t GetSize() const = 0; + +public: + /* implementation */ + wxDataFormat m_format; - wxString GetText() const - { return m_strText; } + wxDataFormat &GetFormat(); -private: - wxString m_strText; + wxDataFormatId GetFormatType() const; + wxString GetFormatId() const; + GdkAtom GetFormatAtom() const; +private: + DECLARE_DYNAMIC_CLASS( wxDataObject ) }; -// ---------------------------------------------------------------------------- -// wxFileDataObject is a specialization of wxDataObject for file names -// ---------------------------------------------------------------------------- +//---------------------------------------------------------------------------- +// wxTextDataObject is a specialization of wxDataObject for text data +//---------------------------------------------------------------------------- -class wxFileDataObject : public wxDataObject +class wxTextDataObject : public wxDataObject { - DECLARE_DYNAMIC_CLASS( wxFileDataObject ) +public: + /* default constructor. call SetText() later or override + WriteData() and GetSize() for working on-demand */ + wxTextDataObject(); + + /* constructor */ + wxTextDataObject( const wxString& data ); + + /* set current text data */ + void SetText( const wxString& data ); + + /* get current text data */ + wxString GetText() const; + + /* by default calls WriteString() with string set by constructor or + by SetText(). can be overridden for working on-demand */ + virtual void WriteData( void *dest ) const; + + /* by default, returns length of string as set by constructor or + by SetText(). can be overridden for working on-demand */ + virtual size_t GetSize() const; + + /* write string to dest */ + void WriteString( const wxString &str, void *dest ) const; public: + /* implementation */ + wxString m_data; - wxFileDataObject(void) {} - - virtual wxDataFormat GetFormat() const - { return wxDF_FILENAME; } - - void AddFile( const wxString &file ) - { m_files += file; m_files += (char)0; } - - wxString GetFiles() const - { return m_files; } - private: - wxString m_files; - + DECLARE_DYNAMIC_CLASS( wxTextDataObject ) }; -// ---------------------------------------------------------------------------- -// wxBitmapDataObject is a specialization of wxDataObject for bitmaps -// ---------------------------------------------------------------------------- +//---------------------------------------------------------------------------- +// wxFileDataObject is a specialization of wxDataObject for file names +//---------------------------------------------------------------------------- -class wxBitmapDataObject : public wxDataObject +class wxFileDataObject : public wxDataObject { - DECLARE_DYNAMIC_CLASS( wxBitmapDataObject ) - public: + /* default constructor */ + wxFileDataObject(); + + /* add file name to list */ + void AddFile( const wxString &file ); + + /* get all filename as one string. each file name is 0 terminated, + the list is double zero terminated */ + wxString GetFiles() const; + + /* write list of filenames */ + virtual void WriteData( void *dest ) const; - wxBitmapDataObject(void) {} + /* return length of list of filenames */ + virtual size_t GetSize() const; + +public: + /* implementation */ + wxString m_files; - virtual wxDataFormat GetFormat() const - { return wxDF_BITMAP; } - - void SetBitmap( const wxBitmap &bitmap ) - { m_bitmap = bitmap; } - - wxBitmap GetBitmap() const - { return m_bitmap; } - private: - wxBitmap m_bitmap; + DECLARE_DYNAMIC_CLASS( wxFileDataObject ) }; -// ---------------------------------------------------------------------------- -// wxPrivateDataObject is a specialization of wxDataObject for app specific data -// ---------------------------------------------------------------------------- +//---------------------------------------------------------------------------- +// wxBitmapDataObject is a specialization of wxDataObject for bitmaps +//---------------------------------------------------------------------------- -class wxPrivateDataObject : public wxDataObject +class wxBitmapDataObject : public wxDataObject { - DECLARE_DYNAMIC_CLASS( wxPrivateDataObject ) - public: + /* see wxTextDataObject for explanation */ + wxBitmapDataObject(); + wxBitmapDataObject( const wxBitmap& bitmap ); + ~wxBitmapDataObject(); - wxPrivateDataObject(); - - ~wxPrivateDataObject(); - - virtual wxDataFormat GetFormat() const - { return wxDF_PRIVATE; } - - // 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 "WXWORD_FORMAT". - - void SetId( const wxString& id ) - { m_id = id; } - - wxString GetId() const - { return m_id; } + void SetBitmap( const wxBitmap &bitmap ); + wxBitmap GetBitmap() const; - // will make internal copy - void SetData( const char *data, size_t size ); - - size_t GetDataSize() const - { return m_size; } - - char* GetData() const - { return m_data; } + virtual void WriteData( void *dest ) const; + virtual size_t GetSize() const; + void *GetData() const { return (void*)m_pngData; } + + void WriteBitmap( const wxBitmap &bitmap, void *dest ) const; -private: - size_t m_size; - char* m_data; - wxString m_id; -}; + void SetPngData( const char *pngData, size_t pngSize ); +private: + wxBitmap m_bitmap; + size_t m_pngSize; + char *m_pngData; + + void DoConvertToPng(); + +private: + DECLARE_DYNAMIC_CLASS( wxBitmapDataObject ); +}; -#endif +#endif //__GTKDNDH__