c9d01afd82
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4955 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
407 lines
11 KiB
C++
407 lines
11 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: image.h
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// Purpose: wxImage class
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// Author: Robert Roebling
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// RCS-ID: $Id$
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// Copyright: (c) Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_IMAGE_H_
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#define _WX_IMAGE_H_
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#ifdef __GNUG__
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#pragma interface "image.h"
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#endif
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#include "wx/setup.h"
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#include "wx/object.h"
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#include "wx/string.h"
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#include "wx/gdicmn.h"
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#include "wx/bitmap.h"
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#if wxUSE_STREAMS
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# include "wx/stream.h"
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#endif
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//-----------------------------------------------------------------------------
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// classes
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//-----------------------------------------------------------------------------
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class WXDLLEXPORT wxImageHandler;
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#if wxUSE_LIBPNG
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class WXDLLEXPORT wxPNGHandler;
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#endif
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#if wxUSE_LIBJPEG
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class WXDLLEXPORT wxJPEGHandler;
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#endif
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#if wxUSE_LIBTIFF
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class WXDLLEXPORT wxTIFFHandler;
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#endif
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class WXDLLEXPORT wxBMPHandler;
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#if wxUSE_GIF
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class WXDLLEXPORT wxGIFHandler;
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#endif
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#if wxUSE_PNM
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class WXDLLEXPORT wxPNMHandler;
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#endif
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#if wxUSE_PCX
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class WXDLLEXPORT wxPCXHandler;
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#endif
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class WXDLLEXPORT wxImage;
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//-----------------------------------------------------------------------------
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// wxImageHandler
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//-----------------------------------------------------------------------------
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class WXDLLEXPORT wxImageHandler: public wxObject
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{
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DECLARE_CLASS(wxImageHandler)
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public:
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wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; }
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#if wxUSE_STREAMS
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virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
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virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
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virtual int GetImageCount( wxInputStream& stream );
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bool CanRead( wxInputStream& stream ) { return DoCanRead(stream); }
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bool CanRead( const wxString& name );
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#endif
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void SetName(const wxString& name) { m_name = name; }
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void SetExtension(const wxString& ext) { m_extension = ext; }
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void SetType(long type) { m_type = type; }
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void SetMimeType(const wxString& type) { m_mime = type; }
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wxString GetName() const { return m_name; }
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wxString GetExtension() const { return m_extension; }
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long GetType() const { return m_type; }
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wxString GetMimeType() const { return m_mime; }
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protected:
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virtual bool DoCanRead( wxInputStream& stream ) = 0;
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wxString m_name;
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wxString m_extension;
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wxString m_mime;
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long m_type;
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};
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//-----------------------------------------------------------------------------
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// wxPNGHandler
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//-----------------------------------------------------------------------------
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#if wxUSE_LIBPNG
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class WXDLLEXPORT wxPNGHandler: public wxImageHandler
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{
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DECLARE_DYNAMIC_CLASS(wxPNGHandler)
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public:
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inline wxPNGHandler()
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{
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m_name = "PNG file";
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m_extension = "png";
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m_type = wxBITMAP_TYPE_PNG;
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m_mime = "image/png";
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};
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#if wxUSE_STREAMS
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virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
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virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
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virtual bool DoCanRead( wxInputStream& stream );
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#endif
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};
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#endif
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//-----------------------------------------------------------------------------
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// wxJPEGHandler
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//-----------------------------------------------------------------------------
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#if wxUSE_LIBJPEG
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class WXDLLEXPORT wxJPEGHandler: public wxImageHandler
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{
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DECLARE_DYNAMIC_CLASS(wxJPEGHandler)
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public:
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inline wxJPEGHandler()
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{
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m_name = "JPEG file";
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m_extension = "jpg";
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m_type = wxBITMAP_TYPE_JPEG;
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m_mime = "image/jpeg";
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};
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#if wxUSE_STREAMS
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virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
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virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
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virtual bool DoCanRead( wxInputStream& stream );
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#endif
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};
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#endif
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//-----------------------------------------------------------------------------
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// wxTIFFHandler
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//-----------------------------------------------------------------------------
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#if wxUSE_LIBTIFF
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class WXDLLEXPORT wxTIFFHandler: public wxImageHandler
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{
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DECLARE_DYNAMIC_CLASS(wxTIFFHandler)
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public:
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inline wxTIFFHandler()
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{
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m_name = "TIFF file";
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m_extension = "tif";
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m_type = wxBITMAP_TYPE_TIF;
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m_mime = "image/tiff";
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};
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#if wxUSE_STREAMS
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virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
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virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
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virtual bool DoCanRead( wxInputStream& stream );
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virtual int GetImageCount( wxInputStream& stream );
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#endif
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};
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#endif
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//-----------------------------------------------------------------------------
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// wxBMPHandler
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//-----------------------------------------------------------------------------
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class WXDLLEXPORT wxBMPHandler: public wxImageHandler
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{
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DECLARE_DYNAMIC_CLASS(wxBMPHandler)
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public:
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inline wxBMPHandler()
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{
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m_name = "BMP file";
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m_extension = "bmp";
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m_type = wxBITMAP_TYPE_BMP;
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m_mime = "image/bmp";
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};
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#if wxUSE_STREAMS
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virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
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virtual bool DoCanRead( wxInputStream& stream );
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#endif
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};
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//-----------------------------------------------------------------------------
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// wxGIFHandler
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//-----------------------------------------------------------------------------
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#if wxUSE_GIF
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class WXDLLEXPORT wxGIFHandler : public wxImageHandler
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{
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DECLARE_DYNAMIC_CLASS(wxGIFHandler)
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public:
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inline wxGIFHandler()
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{
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m_name = "GIF file";
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m_extension = "gif";
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m_type = wxBITMAP_TYPE_GIF;
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m_mime = "image/gif";
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};
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#if wxUSE_STREAMS
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virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
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virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
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virtual bool DoCanRead( wxInputStream& stream );
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#endif
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};
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#endif
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//-----------------------------------------------------------------------------
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// wxPNMHandler
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//-----------------------------------------------------------------------------
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#if wxUSE_PNM
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class WXDLLEXPORT wxPNMHandler : public wxImageHandler
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{
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DECLARE_DYNAMIC_CLASS(wxPNMHandler)
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public:
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inline wxPNMHandler()
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{
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m_name = "PNM file";
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m_extension = "pnm";
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m_type = wxBITMAP_TYPE_PNM;
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m_mime = "image/pnm";
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};
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#if wxUSE_STREAMS
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virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
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virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
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virtual bool DoCanRead( wxInputStream& stream );
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#endif
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};
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#endif
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//-----------------------------------------------------------------------------
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// wxPCXHandler
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//-----------------------------------------------------------------------------
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#if wxUSE_PCX
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class WXDLLEXPORT wxPCXHandler : public wxImageHandler
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{
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DECLARE_DYNAMIC_CLASS(wxPCXHandler)
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public:
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inline wxPCXHandler()
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{
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m_name = "PCX file";
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m_extension = "pcx";
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m_type = wxBITMAP_TYPE_PCX;
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m_mime = "image/pcx";
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};
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#if wxUSE_STREAMS
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virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
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virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
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virtual bool DoCanRead( wxInputStream& stream );
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#endif // wxUSE_STREAMS
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};
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#endif // wxUSE_PCX
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//-----------------------------------------------------------------------------
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// wxImage
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//-----------------------------------------------------------------------------
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// GRG: Dic/99
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class WXDLLEXPORT wxHNode
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{
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public:
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unsigned long index;
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unsigned long value;
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};
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class WXDLLEXPORT wxImage: public wxObject
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{
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DECLARE_DYNAMIC_CLASS(wxImage)
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friend class WXDLLEXPORT wxImageHandler;
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public:
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wxImage();
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wxImage( int width, int height );
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wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY );
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wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
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wxImage( const wxString& name, const wxString& mimetype );
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wxImage( wxInputStream& stream, const wxString& mimetype );
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wxImage( const wxImage& image );
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wxImage( const wxImage* image );
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// these functions get implemented in /src/(platform)/bitmap.cpp
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wxImage( const wxBitmap &bitmap );
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operator wxBitmap() const { return ConvertToBitmap(); }
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wxBitmap ConvertToBitmap() const;
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void Create( int width, int height );
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void Destroy();
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// return the new image with size width*height
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wxImage GetSubImage( const wxRect& ) const;
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// return the new image with size width*height
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wxImage Scale( int width, int height ) const;
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// rescales the image in place
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void Rescale( int width, int height ) { *this = Scale(width, height); }
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// these routines are slow but safe
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void SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b );
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unsigned char GetRed( int x, int y );
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unsigned char GetGreen( int x, int y );
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unsigned char GetBlue( int x, int y );
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static bool CanRead( const wxString& name );
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virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_ANY );
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virtual bool LoadFile( const wxString& name, const wxString& mimetype );
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#if wxUSE_STREAMS
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static bool CanRead( wxInputStream& stream );
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virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
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virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype );
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#endif
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virtual bool SaveFile( const wxString& name, int type );
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virtual bool SaveFile( const wxString& name, const wxString& mimetype );
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#if wxUSE_STREAMS
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virtual bool SaveFile( wxOutputStream& stream, int type );
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virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype );
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#endif
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bool Ok() const;
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int GetWidth() const;
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int GetHeight() const;
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char unsigned *GetData() const;
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void SetData( char unsigned *data );
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void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );
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unsigned char GetMaskRed() const;
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unsigned char GetMaskGreen() const;
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unsigned char GetMaskBlue() const;
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void SetMask( bool mask = TRUE );
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bool HasMask() const;
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wxImage& operator = (const wxImage& image)
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{
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if ( (*this) != image )
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Ref(image);
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return *this;
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}
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bool operator == (const wxImage& image)
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{ return m_refData == image.m_refData; }
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bool operator != (const wxImage& image)
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{ return m_refData != image.m_refData; }
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static wxList& GetHandlers() { return sm_handlers; }
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static void AddHandler( wxImageHandler *handler );
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static void InsertHandler( wxImageHandler *handler );
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static bool RemoveHandler( const wxString& name );
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static wxImageHandler *FindHandler( const wxString& name );
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static wxImageHandler *FindHandler( const wxString& extension, long imageType );
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static wxImageHandler *FindHandler( long imageType );
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static wxImageHandler *FindHandlerMime( const wxString& mimetype );
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static void CleanUpHandlers();
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static void InitStandardHandlers();
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// GRG: Dic/99
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unsigned long ComputeHistogram( wxHashTable &h );
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protected:
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static wxList sm_handlers;
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};
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extern void WXDLLEXPORT wxInitAllImageHandlers();
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#endif
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// _WX_IMAGE_H_
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