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New DnD and Clipboard code

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Rearranged wxApp to do the same in the
    same order upon program start-up on
    wxGTK and wxMSW
  ODBC tweaks
  exchanged wxDataFormat for wxIPCFormat


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1427 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
1999-01-19 16:33:16 +00:00
parent c75e66953f
commit 0d2a2b601b
30 changed files with 2042 additions and 940 deletions
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267
include/wx/gtk1/dataobj.h
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@@ -23,6 +23,8 @@
// classes
//-------------------------------------------------------------------------
class wxDataFormat;
class wxDataBroker;
class wxDataObject;
class wxTextDataObject;
class wxBitmapDataObject;
@@ -30,28 +32,133 @@ class wxPrivateDataObject;
class wxFileDataObject;
//-------------------------------------------------------------------------
// wxDataObject
// wxDataFormat
//-------------------------------------------------------------------------
class wxDataObject: public wxObject
enum wxDataType
{
DECLARE_ABSTRACT_CLASS( wxDataObject )
wxDF_INVALID = 0,
wxDF_TEXT = 1, /* CF_TEXT */
wxDF_BITMAP = 2, /* CF_BITMAP */
wxDF_METAFILE = 3, /* CF_METAFILEPICT */
wxDF_SYLK = 4,
wxDF_DIF = 5,
wxDF_TIFF = 6,
wxDF_OEMTEXT = 7, /* CF_OEMTEXT */
wxDF_DIB = 8, /* CF_DIB */
wxDF_PALETTE = 9,
wxDF_PENDATA = 10,
wxDF_RIFF = 11,
wxDF_WAVE = 12,
wxDF_UNICODETEXT = 13,
wxDF_ENHMETAFILE = 14,
wxDF_FILENAME = 15, /* CF_HDROP */
wxDF_LOCALE = 16,
wxDF_PRIVATE = 20
};
class wxDataFormat : public wxObject
{
DECLARE_CLASS( wxDataFormat )
public:
wxDataFormat( wxDataType type );
wxDataFormat( const wxString &id );
wxDataFormat( wxDataFormat &format );
wxDataFormat( const GdkAtom atom );
int GetType() const;
wxString GetId() const;
void SetId( const wxString &id );
GdkAtom GetAtom();
private:
int m_type;
wxString m_id;
bool m_hasAtom;
GdkAtom m_atom;
};
//-------------------------------------------------------------------------
// wxDataBroker handles data and ormat negotiation for clipboard and DnD
//-------------------------------------------------------------------------
class wxDataBroker : public wxObject
{
DECLARE_CLASS( wxDataBroker )
public:
wxDataObject() {}
~wxDataObject() {}
/* 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 wxDataFormat &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;
/* implementation */
virtual wxDataFormat GetFormat() const = 0;
public:
// implementation
GdkAtom m_formatAtom;
wxList m_dataObjects;
size_t m_preferred;
};
// ----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// wxDataObject to be placed in wxDataBroker
//----------------------------------------------------------------------------
class wxDataObject : public wxObject
{
DECLARE_DYNAMIC_CLASS( wxDataObject )
public:
/* constructor */
wxDataObject();
/* destructor */
~wxDataObject();
/* write data to dest */
virtual void WriteData( void *dest ) const = 0;
/* get size of data */
virtual size_t GetSize() const = 0;
/* implementation */
virtual wxDataFormat &GetFormat() const;
wxDataFormat *m_format;
};
//----------------------------------------------------------------------------
// wxTextDataObject is a specialization of wxDataObject for text data
// ----------------------------------------------------------------------------
//----------------------------------------------------------------------------
class wxTextDataObject : public wxDataObject
{
@@ -59,27 +166,38 @@ class wxTextDataObject : public wxDataObject
public:
wxTextDataObject() {}
wxTextDataObject( const wxString& strText )
: m_strText(strText) { }
/* default constructor. call SetText() later or override
WriteData() and GetSize() for working on-demand */
wxTextDataObject();
virtual wxDataFormat GetFormat() const
{ return wxDF_TEXT; }
/* constructor */
wxTextDataObject( const wxString& data );
/* set current text data */
void SetText( const wxString& data );
void SetText( const wxString& strText)
{ m_strText = strText; }
wxString GetText() const
{ return m_strText; }
/* get current text data */
wxString GetText() const;
private:
wxString m_strText;
/* 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;
/* implementation */
wxString m_data;
};
// ----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// wxFileDataObject is a specialization of wxDataObject for file names
// ----------------------------------------------------------------------------
//----------------------------------------------------------------------------
class wxFileDataObject : public wxDataObject
{
@@ -87,25 +205,30 @@ class wxFileDataObject : public wxDataObject
public:
wxFileDataObject(void) {}
/* 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;
/* return length of list of filenames */
virtual size_t GetSize() const;
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:
/* implementation */
wxString m_files;
};
// ----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// wxBitmapDataObject is a specialization of wxDataObject for bitmaps
// ----------------------------------------------------------------------------
//----------------------------------------------------------------------------
class wxBitmapDataObject : public wxDataObject
{
@@ -113,26 +236,28 @@ class wxBitmapDataObject : public wxDataObject
public:
wxBitmapDataObject(void) {}
/* see wxTextDataObject for explanation */
wxBitmapDataObject();
wxBitmapDataObject( const wxBitmap& bitmap );
wxBitmapDataObject( const wxBitmap& bitmap ) { m_bitmap = bitmap; }
void SetBitmap( const wxBitmap &bitmap );
wxBitmap GetBitmap() const;
virtual wxDataFormat GetFormat() const
{ return wxDF_BITMAP; }
virtual void WriteData( void *dest ) const;
virtual size_t GetSize() const;
void WriteBitmap( const wxBitmap &bitmap, void *dest ) const;
void SetBitmap( const wxBitmap &bitmap )
{ m_bitmap = bitmap; }
wxBitmap GetBitmap() const
{ return m_bitmap; }
private:
// implementation
wxBitmap m_bitmap;
};
// ----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// wxPrivateDataObject is a specialization of wxDataObject for app specific data
// ----------------------------------------------------------------------------
//----------------------------------------------------------------------------
class wxPrivateDataObject : public wxDataObject
{
@@ -140,33 +265,35 @@ class wxPrivateDataObject : public wxDataObject
public:
/* see wxTextDataObject for explanation of functions */
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 "application/wxword", an
* image manipulation program would put a wxBitmapDataObject and a
* wxPrivateDataObject to the clipboard - the latter with "image/png". */
// 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 );
void SetId( const wxString& id )
{ m_id = id; }
wxString GetId() const
{ return m_id; }
/* get id */
wxString GetId() const;
// will make internal copy
/* set data. will make internal copy. */
void SetData( const char *data, size_t size );
size_t GetDataSize() const
{ return m_size; }
/* returns pointer to data */
char* GetData() const;
virtual void WriteData( void *dest ) const;
virtual size_t GetSize() const;
void WriteData( const char *data, void *dest ) const;
char* GetData() const
{ return m_data; }
private:
// implementation
size_t m_size;
char* m_data;
wxString m_id;