wxWidgets/include/wx/image.h
1999-01-09 20:18:06 +00:00

187 lines
5.4 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: image.h
// Purpose: wxImage class
// Author: Robert Roebling
// RCS-ID: $Id$
// Copyright: (c) Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_IMAGE_H_
#define _WX_IMAGE_H_
#ifdef __GNUG__
#pragma interface "image.h"
#endif
#include "wx/setup.h"
#include "wx/object.h"
#include "wx/string.h"
#include "wx/gdicmn.h"
#include "wx/stream.h"
//-----------------------------------------------------------------------------
// classes
//-----------------------------------------------------------------------------
class WXDLLEXPORT wxImageHandler;
#ifdef wxUSE_LIBPNG
class WXDLLEXPORT wxPNGHandler;
#endif
class WXDLLEXPORT wxBMPHandler;
class WXDLLEXPORT wxImage;
class WXDLLEXPORT wxBitmap;
//-----------------------------------------------------------------------------
// wxImageHandler
//-----------------------------------------------------------------------------
class WXDLLEXPORT wxImageHandler: public wxObject
{
DECLARE_DYNAMIC_CLASS(wxImageHandler)
public:
wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; }
virtual bool LoadFile( wxImage *image, wxInputStream& stream );
virtual bool SaveFile( wxImage *image, wxOutputStream& stream );
inline void SetName(const wxString& name) { m_name = name; }
inline void SetExtension(const wxString& ext) { m_extension = ext; }
inline void SetType(long type) { m_type = type; }
inline wxString GetName() const { return m_name; }
inline wxString GetExtension() const { return m_extension; }
inline long GetType() const { return m_type; }
protected:
wxString m_name;
wxString m_extension;
long m_type;
};
//-----------------------------------------------------------------------------
// wxPNGHandler
//-----------------------------------------------------------------------------
#ifdef wxUSE_LIBPNG
class WXDLLEXPORT wxPNGHandler: public wxImageHandler
{
DECLARE_DYNAMIC_CLASS(wxPNGHandler)
public:
inline wxPNGHandler()
{
m_name = "PNG file";
m_extension = "png";
m_type = wxBITMAP_TYPE_PNG;
};
virtual bool LoadFile( wxImage *image, wxInputStream& stream );
virtual bool SaveFile( wxImage *image, wxOutputStream& stream );
};
#endif
//-----------------------------------------------------------------------------
// wxBMPHandler
//-----------------------------------------------------------------------------
class WXDLLEXPORT wxBMPHandler: public wxImageHandler
{
DECLARE_DYNAMIC_CLASS(wxBMPHandler)
public:
inline wxBMPHandler()
{
m_name = "BMP file";
m_extension = "bmp";
m_type = wxBITMAP_TYPE_BMP;
};
virtual bool LoadFile( wxImage *image, wxInputStream& stream );
};
//-----------------------------------------------------------------------------
// wxImage
//-----------------------------------------------------------------------------
class WXDLLEXPORT wxImage: public wxObject
{
DECLARE_DYNAMIC_CLASS(wxImage)
friend class WXDLLEXPORT wxImageHandler;
public:
wxImage();
wxImage( int width, int height );
wxImage( const wxString& name, long type = wxBITMAP_TYPE_PNG );
wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_PNG );
wxImage( const wxImage& image );
wxImage( const wxImage* image );
// these functions get implemented in /src/(platform)/bitmap.cpp
wxImage( const wxBitmap &bitmap );
wxBitmap ConvertToBitmap() const;
void Create( int width, int height );
void Destroy();
wxImage Scale( int width, int height );
// these routines are slow but safe
void SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b );
unsigned char GetRed( int x, int y );
unsigned char GetGreen( int x, int y );
unsigned char GetBlue( int x, int y );
virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_PNG );
virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_PNG );
virtual bool SaveFile( const wxString& name, int type );
virtual bool SaveFile( wxOutputStream& stream, int type );
bool Ok() const;
int GetWidth() const;
int GetHeight() const;
char unsigned *GetData() const;
void SetData( char unsigned *data );
void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );
unsigned char GetMaskRed() const;
unsigned char GetMaskGreen() const;
unsigned char GetMaskBlue() const;
void SetMask( bool mask = TRUE );
bool HasMask() const;
inline wxImage& operator = (const wxImage& image)
{ if (*this == image) return (*this); Ref(image); return *this; }
inline bool operator == (const wxImage& image)
{ return m_refData == image.m_refData; }
inline bool operator != (const wxImage& image)
{ return m_refData != image.m_refData; }
static inline wxList& GetHandlers() { return sm_handlers; }
static void AddHandler( wxImageHandler *handler );
static void InsertHandler( wxImageHandler *handler );
static bool RemoveHandler( const wxString& name );
static wxImageHandler *FindHandler( const wxString& name );
static wxImageHandler *FindHandler( const wxString& extension, long imageType );
static wxImageHandler *FindHandler( long imageType );
static void CleanUpHandlers();
static void InitStandardHandlers();
protected:
static wxList sm_handlers;
};
#endif
// _WX_IMAGE_H_