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attempts at providing clipboard/dnd support for metafiles - unsuccessful

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5283 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2000-01-07 02:30:29 +00:00
parent 85ac091e8f
commit 265b0c070b
4 changed files with 416 additions and 325 deletions
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183
include/wx/msw/metafile.h
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@@ -1,39 +1,42 @@
/////////////////////////////////////////////////////////////////////////////
// Name: metafile.h
// Purpose: wxMetaFile, wxMetaFileDC classes
// Name: wx/msw/metafile.h
// Purpose: wxMetaFile, wxMetaFileDC and wxMetaFileDataObject classes
// Author: Julian Smart
// Modified by:
// Modified by: VZ 07.01.00: implemented wxMetaFileDataObject
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_METAFIILE_H_
#define _WX_METAFIILE_H_
#ifdef __GNUG__
#pragma interface "metafile.h"
#pragma interface "metafile.h"
#endif
#include "wx/setup.h"
#if wxUSE_METAFILE
#include "wx/dc.h"
#include "wx/gdiobj.h"
#if wxUSE_DRAG_AND_DROP
#include "wx/dataobj.h"
#include "wx/dataobj.h"
#endif
/*
* Metafile and metafile device context classes
*
*/
// provide synonyms for all metafile classes
#define wxMetaFile wxMetafile
#define wxMetaFileDC wxMetafileDC
#define wxMetaFileDataObject wxMetafileDataObject
#define wxMakeMetaFilePlaceable wxMakeMetafilePlaceable
// ----------------------------------------------------------------------------
// Metafile and metafile device context classes
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxMetafile;
@@ -41,79 +44,88 @@ class WXDLLEXPORT wxMetafileRefData: public wxGDIRefData
{
friend class WXDLLEXPORT wxMetafile;
public:
wxMetafileRefData(void);
~wxMetafileRefData(void);
wxMetafileRefData();
~wxMetafileRefData();
public:
WXHANDLE m_metafile;
int m_windowsMappingMode;
int m_width, m_height;
};
#define M_METAFILEDATA ((wxMetafileRefData *)m_refData)
class WXDLLEXPORT wxMetafile: public wxGDIObject
{
DECLARE_DYNAMIC_CLASS(wxMetafile)
public:
// Copy constructor
inline wxMetafile(const wxMetafile& metafile)
{ Ref(metafile); }
public:
wxMetafile(const wxString& file = wxEmptyString);
wxMetafile(const wxMetafile& metafile) { Ref(metafile); }
virtual ~wxMetafile();
wxMetafile(const wxString& file = "");
~wxMetafile(void);
// After this is called, the metafile cannot be used for anything
// since it is now owned by the clipboard.
virtual bool SetClipboard(int width = 0, int height = 0);
// After this is called, the metafile cannot be used for anything
// since it is now owned by the clipboard.
virtual bool SetClipboard(int width = 0, int height = 0);
virtual bool Play(wxDC *dc);
bool Ok() const { return (M_METAFILEDATA && (M_METAFILEDATA->m_metafile != 0)); };
virtual bool Play(wxDC *dc);
inline bool Ok(void) const { return (M_METAFILEDATA && (M_METAFILEDATA->m_metafile != 0)); };
// set/get the size of metafile for clipboard operations
int GetWidth() const { return M_METAFILEDATA->m_width; }
int GetHeight() const { return M_METAFILEDATA->m_height; }
// Implementation
inline WXHANDLE GetHMETAFILE(void) { return M_METAFILEDATA->m_metafile; }
void SetHMETAFILE(WXHANDLE mf) ;
inline int GetWindowsMappingMode(void) { return M_METAFILEDATA->m_windowsMappingMode; }
void SetWindowsMappingMode(int mm);
void SetWidth(int width) { M_METAFILEDATA->m_width = width; }
void SetHeight(int height) { M_METAFILEDATA->m_height = height; }
// Operators
inline wxMetafile& operator = (const wxMetafile& metafile) { if (*this == metafile) return (*this); Ref(metafile); return *this; }
inline bool operator == (const wxMetafile& metafile) { return m_refData == metafile.m_refData; }
inline bool operator != (const wxMetafile& metafile) { return m_refData != metafile.m_refData; }
// Implementation
WXHANDLE GetHMETAFILE() const { return M_METAFILEDATA->m_metafile; }
void SetHMETAFILE(WXHANDLE mf) ;
int GetWindowsMappingMode() const { return M_METAFILEDATA->m_windowsMappingMode; }
void SetWindowsMappingMode(int mm);
protected:
// Operators
wxMetafile& operator=(const wxMetafile& metafile)
{ if (*this != metafile) Ref(metafile); return *this; }
bool operator==(const wxMetafile& metafile) const
{ return m_refData == metafile.m_refData; }
bool operator!=(const wxMetafile& metafile) const
{ return m_refData != metafile.m_refData; }
private:
DECLARE_DYNAMIC_CLASS(wxMetafile)
};
class WXDLLEXPORT wxMetafileDC: public wxDC
{
DECLARE_DYNAMIC_CLASS(wxMetafileDC)
public:
// Don't supply origin and extent
// Supply them to wxMakeMetaFilePlaceable instead.
wxMetafileDC(const wxString& file = "");
public:
// Don't supply origin and extent
// Supply them to wxMakeMetaFilePlaceable instead.
wxMetafileDC(const wxString& file = "");
// Supply origin and extent (recommended).
// Then don't need to supply them to wxMakeMetaFilePlaceable.
wxMetafileDC(const wxString& file, int xext, int yext, int xorg, int yorg);
// Supply origin and extent (recommended).
// Then don't need to supply them to wxMakeMetaFilePlaceable.
wxMetafileDC(const wxString& file, int xext, int yext, int xorg, int yorg);
virtual ~wxMetafileDC();
~wxMetafileDC(void);
// Should be called at end of drawing
virtual wxMetafile *Close();
virtual void SetMapMode(int mode);
virtual void GetTextExtent(const wxString& string, long *x, long *y,
long *descent = NULL, long *externalLeading = NULL,
wxFont *theFont = NULL, bool use16bit = FALSE) const;
// Should be called at end of drawing
virtual wxMetafile *Close(void);
virtual void SetMapMode(int mode);
virtual void GetTextExtent(const wxString& string, long *x, long *y,
long *descent = NULL, long *externalLeading = NULL,
wxFont *theFont = NULL, bool use16bit = FALSE) const;
// Implementation
inline wxMetafile *GetMetaFile(void) const { return m_metaFile; }
inline void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; }
inline int GetWindowsMappingMode(void) const { return m_windowsMappingMode; }
inline void SetWindowsMappingMode(int mm) { m_windowsMappingMode = mm; }
// Implementation
wxMetafile *GetMetaFile() const { return m_metaFile; }
void SetMetaFile(wxMetafile *mf) { m_metaFile = mf; }
int GetWindowsMappingMode() const { return m_windowsMappingMode; }
void SetWindowsMappingMode(int mm) { m_windowsMappingMode = mm; }
protected:
int m_windowsMappingMode;
wxMetafile* m_metaFile;
int m_windowsMappingMode;
wxMetafile* m_metaFile;
private:
DECLARE_DYNAMIC_CLASS(wxMetafileDC)
};
/*
@@ -124,7 +136,6 @@ protected:
*/
// No origin or extent
#define wxMakeMetaFilePlaceable wxMakeMetafilePlaceable
bool WXDLLEXPORT wxMakeMetafilePlaceable(const wxString& filename, float scale = 1.0);
// Optional origin and extent
@@ -134,44 +145,34 @@ bool WXDLLEXPORT wxMakeMetaFilePlaceable(const wxString& filename, int x1, int y
// wxMetafileDataObject is a specialization of wxDataObject for metafile data
// ----------------------------------------------------------------------------
// TODO: implement OLE side of things. At present, it's just for clipboard
// use.
#if wxUSE_DRAG_AND_DROP
class WXDLLEXPORT wxMetafileDataObject : public wxDataObject
class WXDLLEXPORT wxMetafileDataObject : public wxDataObjectSimple
{
public:
// ctors
wxMetafileDataObject() { m_width = 0; m_height = 0; };
wxMetafileDataObject(const wxMetafile& metafile, int width = 0, int height = 0):
m_metafile(metafile), m_width(width), m_height(height) { }
// ctors
wxMetafileDataObject() : wxDataObjectSimple(wxDF_METAFILE)
{ }
wxMetafileDataObject(const wxMetafile& metafile)
: wxDataObjectSimple(wxDF_METAFILE), m_metafile(metafile) { }
void SetMetafile(const wxMetafile& metafile, int w = 0, int h = 0)
{ m_metafile = metafile; m_width = w; m_height = h; }
wxMetafile GetMetafile() const { return m_metafile; }
int GetWidth() const { return m_width; }
int GetHeight() const { return m_height; }
// virtual functions which you may override if you want to provide data on
// demand only - otherwise, the trivial default versions will be used
virtual void SetMetafile(const wxMetafile& metafile)
{ m_metafile = metafile; }
virtual wxMetafile GetMetafile() const
{ return m_metafile; }
virtual wxDataFormat GetFormat() const { return wxDF_METAFILE; }
// implement base class pure virtuals
virtual size_t GetDataSize() const;
virtual bool GetDataHere(void *buf) const;
virtual bool SetData(size_t len, const void *buf);
/* ??
// implement base class pure virtuals
virtual wxDataFormat GetPreferredFormat() const
{ return (wxDataFormat) wxDataObject::Text; }
virtual bool IsSupportedFormat(wxDataFormat format) const
{ return format == wxDataObject::Text || format == wxDataObject::Locale; }
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()); }
*/
private:
wxMetafile m_metafile;
int m_width;
int m_height;
protected:
wxMetafile m_metafile;
};
#endif
#endif // wxUSE_DRAG_AND_DROP
#endif // wxUSE_METAFILE
#endif