#include "wx/string.h"
#include "wx/gdicmn.h"
#include "wx/hashmap.h"
+#include "wx/arrstr.h"
#if wxUSE_STREAMS
# include "wx/stream.h"
#define wxIMAGE_OPTION_RESOLUTIONUNIT wxString(_T("ResolutionUnit"))
+#define wxIMAGE_OPTION_MAX_WIDTH wxString(_T("MaxWidth"))
+#define wxIMAGE_OPTION_MAX_HEIGHT wxString(_T("MaxHeight"))
+
// constants used with wxIMAGE_OPTION_RESOLUTIONUNIT
//
// NB: don't change these values, they correspond to libjpeg constants
{
public:
wxImageHandler()
- : m_name(wxEmptyString), m_extension(wxEmptyString), m_mime(), m_type(0)
+ : m_name(wxEmptyString), m_extension(wxEmptyString), m_mime(), m_type(wxBITMAP_TYPE_INVALID)
{ }
#if wxUSE_STREAMS
- virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1 );
- virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=true );
-
- virtual int GetImageCount( wxInputStream& stream );
+ // NOTE: LoadFile and SaveFile are not pure virtuals to allow derived classes
+ // to implement only one of the two
+ virtual bool LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream),
+ bool WXUNUSED(verbose)=true, int WXUNUSED(index)=-1 )
+ { return false; }
+ virtual bool SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream),
+ bool WXUNUSED(verbose)=true )
+ { return false; }
+
+ int GetImageCount( wxInputStream& stream );
+ // save the stream position, call DoGetImageCount() and restore the position
bool CanRead( wxInputStream& stream ) { return CallDoCanRead(stream); }
bool CanRead( const wxString& name );
void SetName(const wxString& name) { m_name = name; }
void SetExtension(const wxString& ext) { m_extension = ext; }
- void SetType(long type) { m_type = type; }
+ void SetAltExtensions(const wxArrayString& exts) { m_altExtensions = exts; }
+ void SetType(wxBitmapType type) { m_type = type; }
void SetMimeType(const wxString& type) { m_mime = type; }
const wxString& GetName() const { return m_name; }
const wxString& GetExtension() const { return m_extension; }
- long GetType() const { return m_type; }
+ const wxArrayString& GetAltExtensions() const { return m_altExtensions; }
+ wxBitmapType GetType() const { return m_type; }
const wxString& GetMimeType() const { return m_mime; }
+#if WXWIN_COMPATIBILITY_2_8
+ wxDEPRECATED(
+ void SetType(long type) { SetType((wxBitmapType)type); }
+ )
+#endif // WXWIN_COMPATIBILITY_2_8
+
protected:
#if wxUSE_STREAMS
+ // NOTE: this function is allowed to change the current stream position
+ // since GetImageCount() will take care of restoring it later
+ virtual int DoGetImageCount( wxInputStream& WXUNUSED(stream) )
+ { return 1; } // default return value is 1 image
+
+ // NOTE: this function is allowed to change the current stream position
+ // since CallDoCanRead() will take care of restoring it later
virtual bool DoCanRead( wxInputStream& stream ) = 0;
// save the stream position, call DoCanRead() and restore the position
wxString m_name;
wxString m_extension;
+ wxArrayString m_altExtensions;
wxString m_mime;
- long m_type;
+ wxBitmapType m_type;
private:
DECLARE_CLASS(wxImageHandler)
double value;
};
- wxImage(){}
- wxImage( int width, int height, bool clear = true );
- wxImage( int width, int height, unsigned char* data, bool static_data = false );
- wxImage( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );
- wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 );
- wxImage( const wxString& name, const wxString& mimetype, int index = -1 );
- wxImage( const char* const* xpmData );
+ wxImage() {}
+ wxImage( int width, int height, bool clear = true )
+ { Create( width, height, clear ); }
+ wxImage( int width, int height, unsigned char* data, bool static_data = false )
+ { Create( width, height, data, static_data ); }
+ wxImage( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false )
+ { Create( width, height, data, alpha, static_data ); }
+
+ // ctor variants using wxSize:
+ wxImage( const wxSize& sz, bool clear = true )
+ { Create( sz, clear ); }
+ wxImage( const wxSize& sz, unsigned char* data, bool static_data = false )
+ { Create( sz, data, static_data ); }
+ wxImage( const wxSize& sz, unsigned char* data, unsigned char* alpha, bool static_data = false )
+ { Create( sz, data, alpha, static_data ); }
+
+ wxImage( const wxString& name, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 )
+ { LoadFile( name, type, index ); }
+ wxImage( const wxString& name, const wxString& mimetype, int index = -1 )
+ { LoadFile( name, mimetype, index ); }
+ wxImage( const char* const* xpmData )
+ { Create(xpmData); }
#if wxUSE_STREAMS
- wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 );
- wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 );
+ wxImage( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 )
+ { LoadFile( stream, type, index ); }
+ wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 )
+ { LoadFile( stream, mimetype, index ); }
#endif // wxUSE_STREAMS
- bool Create( int width, int height, bool clear = true );
- bool Create( int width, int height, unsigned char* data, bool static_data = false );
- bool Create( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );
bool Create( const char* const* xpmData );
#ifdef __BORLANDC__
// needed for Borland 5.5
- wxImage( char** xpmData ) { Create(wx_const_cast(const char* const*, xpmData)); }
- bool Create( char** xpmData ) { return Create(wx_const_cast(const char* const*, xpmData)); }
+ wxImage( char** xpmData ) { Create(const_cast<const char* const*>(xpmData)); }
+ bool Create( char** xpmData ) { return Create(const_cast<const char* const*>(xpmData)); }
#endif
+
+ bool Create( int width, int height, bool clear = true );
+ bool Create( int width, int height, unsigned char* data, bool static_data = false );
+ bool Create( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );
+
+ // Create() variants using wxSize:
+ bool Create( const wxSize& sz, bool clear = true )
+ { return Create(sz.GetWidth(), sz.GetHeight(), clear); }
+ bool Create( const wxSize& sz, unsigned char* data, bool static_data = false )
+ { return Create(sz.GetWidth(), sz.GetHeight(), data, static_data); }
+ bool Create( const wxSize& sz, unsigned char* data, unsigned char* alpha, bool static_data = false )
+ { return Create(sz.GetWidth(), sz.GetHeight(), data, alpha, static_data); }
+
void Destroy();
+
+ // initialize the image data with zeroes
+ void Clear(unsigned char value = 0);
// creates an identical copy of the image (the = operator
// just raises the ref count)
// Rotates the image about the given point, 'angle' radians.
// Returns the rotated image, leaving this image intact.
wxImage Rotate(double angle, const wxPoint & centre_of_rotation,
- bool interpolating = true, wxPoint * offset_after_rotation = (wxPoint*) NULL) const;
+ bool interpolating = true, wxPoint * offset_after_rotation = NULL) const;
wxImage Rotate90( bool clockwise = true ) const;
wxImage Mirror( bool horizontally = true ) const;
bool SetMaskFromImage(const wxImage & mask,
unsigned char mr, unsigned char mg, unsigned char mb);
- // converts image's alpha channel to mask, if it has any, does nothing
- // otherwise:
+ // converts image's alpha channel to mask (choosing mask colour
+ // automatically or using the specified colour for the mask), if it has
+ // any, does nothing otherwise:
bool ConvertAlphaToMask(unsigned char threshold = wxIMAGE_ALPHA_THRESHOLD);
+ void ConvertAlphaToMask(unsigned char mr, unsigned char mg, unsigned char mb,
+ unsigned char threshold = wxIMAGE_ALPHA_THRESHOLD);
+
// This method converts an image where the original alpha
// information is only available as a shades of a colour
bool ConvertColourToAlpha( unsigned char r, unsigned char g, unsigned char b );
static bool CanRead( const wxString& name );
- static int GetImageCount( const wxString& name, long type = wxBITMAP_TYPE_ANY );
- virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+ static int GetImageCount( const wxString& name, wxBitmapType type = wxBITMAP_TYPE_ANY );
+ virtual bool LoadFile( const wxString& name, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 );
virtual bool LoadFile( const wxString& name, const wxString& mimetype, int index = -1 );
#if wxUSE_STREAMS
static bool CanRead( wxInputStream& stream );
- static int GetImageCount( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
- virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+ static int GetImageCount( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY );
+ virtual bool LoadFile( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 );
virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype, int index = -1 );
#endif
virtual bool SaveFile( const wxString& name ) const;
- virtual bool SaveFile( const wxString& name, int type ) const;
+ virtual bool SaveFile( const wxString& name, wxBitmapType type ) const;
virtual bool SaveFile( const wxString& name, const wxString& mimetype ) const;
#if wxUSE_STREAMS
- virtual bool SaveFile( wxOutputStream& stream, int type ) const;
+ virtual bool SaveFile( wxOutputStream& stream, wxBitmapType type ) const;
virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const;
#endif
int GetWidth() const;
int GetHeight() const;
+ wxSize GetSize() const
+ { return wxSize(GetWidth(), GetHeight()); }
+
+ // Gets the type of image found by LoadFile or specified with SaveFile
+ wxBitmapType GetType() const;
+
+ // Set the image type, this is normally only called if the image is being
+ // created from data in the given format but not using LoadFile() (e.g.
+ // wxGIFDecoder uses this)
+ void SetType(wxBitmapType type);
+
// these functions provide fastest access to wxImage data but should be
// used carefully as no checks are done
unsigned char *GetData() const;
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 wxImageHandler *FindHandler( const wxString& extension, wxBitmapType imageType );
+ static wxImageHandler *FindHandler( wxBitmapType imageType );
+
static wxImageHandler *FindHandlerMime( const wxString& mimetype );
static wxString GetImageExtWildcard();
static HSVValue RGBtoHSV(const RGBValue& rgb);
static RGBValue HSVtoRGB(const HSVValue& hsv);
+#if WXWIN_COMPATIBILITY_2_8
+ wxDEPRECATED_CONSTRUCTOR(
+ wxImage(const wxString& name, long type, int index = -1)
+ {
+ LoadFile(name, (wxBitmapType)type, index);
+ }
+ )
+
+#if wxUSE_STREAMS
+ wxDEPRECATED_CONSTRUCTOR(
+ wxImage(wxInputStream& stream, long type, int index = -1)
+ {
+ LoadFile(stream, (wxBitmapType)type, index);
+ }
+ )
+
+ wxDEPRECATED(
+ bool LoadFile(wxInputStream& stream, long type, int index = -1)
+ {
+ return LoadFile(stream, (wxBitmapType)type, index);
+ }
+ )
+
+ wxDEPRECATED(
+ bool SaveFile(wxOutputStream& stream, long type) const
+ {
+ return SaveFile(stream, (wxBitmapType)type);
+ }
+ )
+#endif // wxUSE_STREAMS
+
+ wxDEPRECATED(
+ bool LoadFile(const wxString& name, long type, int index = -1)
+ {
+ return LoadFile(name, (wxBitmapType)type, index);
+ }
+ )
+
+ wxDEPRECATED(
+ bool SaveFile(const wxString& name, long type) const
+ {
+ return SaveFile(name, (wxBitmapType)type);
+ }
+ )
+
+ wxDEPRECATED(
+ static wxImageHandler *FindHandler(const wxString& ext, long type)
+ {
+ return FindHandler(ext, (wxBitmapType)type);
+ }
+ )
+
+ wxDEPRECATED(
+ static wxImageHandler *FindHandler(long imageType)
+ {
+ return FindHandler((wxBitmapType)imageType);
+ }
+ )
+#endif // WXWIN_COMPATIBILITY_2_8
protected:
static wxList sm_handlers;
private:
friend class WXDLLIMPEXP_FWD_CORE wxImageHandler;
+#if wxUSE_STREAMS
+ // read the image from the specified stream updating image type if
+ // successful
+ bool DoLoad(wxImageHandler& handler, wxInputStream& stream, int index);
+
+ // write the image to the specified stream and also update the image type
+ // if successful
+ bool DoSave(wxImageHandler& handler, wxOutputStream& stream) const;
+#endif // wxUSE_STREAMS
+
DECLARE_DYNAMIC_CLASS(wxImage)
};
projects / wxWidgets.git / blobdiff