wxWidgets/include/wx/imagbmp.h

131 lines
4.3 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: imagbmp.h
// Purpose: wxImage BMP, ICO and CUR handlers
// Author: Robert Roebling, Chris Elliott
// RCS-ID: $Id$
// Copyright: (c) Robert Roebling, Chris Elliott
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_IMAGBMP_H_
#define _WX_IMAGBMP_H_
#ifdef __GNUG__
#pragma interface "imagbmp.h"
#endif
#include "wx/image.h"
// defines for saving the BMP file in different formats, Bits Per Pixel
// USE: wximage.SetOption( wxBMP_FORMAT, wxBMP_xBPP );
#define wxBMP_FORMAT wxString(_T("wxBMP_FORMAT"))
enum
{
wxBMP_24BPP = 24, // default, do not need to set
//wxBMP_16BPP = 16, // wxQuantize can only do 236 colors?
wxBMP_8BPP = 8, // 8bpp, quantized colors
wxBMP_8BPP_GREY = 9, // 8bpp, rgb averaged to greys
wxBMP_8BPP_GRAY = wxBMP_8BPP_GREY,
wxBMP_8BPP_RED = 10, // 8bpp, red used as greyscale
wxBMP_8BPP_PALETTE = 11, // 8bpp, use the wxImage's palette
wxBMP_4BPP = 4, // 4bpp, quantized colors
wxBMP_1BPP = 1, // 1bpp, quantized "colors"
wxBMP_1BPP_BW = 2 // 1bpp, black & white from red
};
// ----------------------------------------------------------------------------
// wxBMPHandler
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxBMPHandler : public wxImageHandler
{
public:
wxBMPHandler()
{
m_name = _T("Windows bitmap file");
m_extension = _T("bmp");
m_type = wxBITMAP_TYPE_BMP;
m_mime = _T("image/x-bmp");
};
#if wxUSE_STREAMS
virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=-1 );
virtual bool DoCanRead( wxInputStream& stream );
protected:
bool SaveDib(wxImage *image, wxOutputStream& stream, bool verbose,
bool IsBmp, bool IsMask);
bool DoLoadDib(wxImage *image, int width, int height, int bpp, int ncolors,
int comp, off_t bmpOffset, wxInputStream& stream,
bool verbose, bool IsBmp, bool hasPalette);
bool LoadDib(wxImage *image, wxInputStream& stream, bool verbose, bool IsBmp);
#endif // wxUSE_STREAMS
private:
DECLARE_DYNAMIC_CLASS(wxBMPHandler)
};
// ----------------------------------------------------------------------------
// wxICOHandler
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxICOHandler : public wxBMPHandler
{
public:
wxICOHandler()
{
m_name = _T("Windows icon file");
m_extension = _T("ico");
m_type = wxBITMAP_TYPE_ICO;
m_mime = _T("image/x-ico");
};
#if wxUSE_STREAMS
virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
virtual bool DoCanRead( wxInputStream& stream );
virtual int GetImageCount( wxInputStream& stream );
#endif // wxUSE_STREAMS
private:
DECLARE_DYNAMIC_CLASS(wxICOHandler)
};
// ----------------------------------------------------------------------------
// wxCURHandler
// ----------------------------------------------------------------------------
// These two options are filled in upon reading CUR file and can (should) be
// specified when saving a CUR file - they define the hotspot of the cursor:
#define wxCUR_HOTSPOT_X wxT("HotSpotX")
#define wxCUR_HOTSPOT_Y wxT("HotSpotY")
class WXDLLEXPORT wxCURHandler : public wxICOHandler
{
public:
wxCURHandler()
{
m_name = _T("Windows cursor file");
m_extension = _T("cur");
m_type = wxBITMAP_TYPE_CUR;
m_mime = _T("image/x-cur");
};
// VS: This handler's meat is implemented inside wxICOHandler (the two
// formats are almost identical), but we hide this fact at
// the API level, since it is a mere implementation detail.
#if wxUSE_STREAMS
virtual bool DoCanRead( wxInputStream& stream );
#endif // wxUSE_STREAMS
private:
DECLARE_DYNAMIC_CLASS(wxCURHandler)
};
#endif // _WX_IMAGBMP_H_