#include "wx/string.h"
#include "wx/gdicmn.h"
#include "wx/bitmap.h"
+#include "wx/hashmap.h"
#if wxUSE_STREAMS
# include "wx/stream.h"
#endif
+#if wxUSE_IMAGE
+
//-----------------------------------------------------------------------------
// classes
//-----------------------------------------------------------------------------
wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; }
#if wxUSE_STREAMS
- virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
+ 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 );
wxString m_extension;
wxString m_mime;
long m_type;
-
+
private:
DECLARE_CLASS(wxImageHandler)
};
//-----------------------------------------------------------------------------
-// wxImage
+// wxImageHistogram
//-----------------------------------------------------------------------------
-class WXDLLEXPORT wxHNode
+class WXDLLEXPORT wxImageHistogramEntry
{
public:
+ wxImageHistogramEntry() : index(0), value(0) {}
unsigned long index;
unsigned long value;
};
+WX_DECLARE_EXPORTED_HASH_MAP(unsigned long, wxImageHistogramEntry,
+ wxIntegerHash, wxIntegerEqual,
+ wxImageHistogram);
+
+//-----------------------------------------------------------------------------
+// wxImage
+//-----------------------------------------------------------------------------
+
class WXDLLEXPORT wxImage: public wxObject
{
public:
wxImage();
wxImage( int width, int height );
wxImage( int width, int height, unsigned char* data, bool static_data = FALSE );
- wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY );
- wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
- wxImage( const wxString& name, const wxString& mimetype );
- wxImage( wxInputStream& stream, const wxString& mimetype );
+ wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+ wxImage( const wxString& name, const wxString& mimetype, int index = -1 );
+
+#if wxUSE_STREAMS
+ wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+ wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 );
+#endif // wxUSE_STREAMS
wxImage( const wxImage& image );
wxImage( const wxImage* image );
+#if wxUSE_GUI
+ // convertion to/from wxBitmap (deprecated, use wxBitmap's methods instead):
wxImage( const wxBitmap &bitmap );
- operator wxBitmap() const { return ConvertToBitmap(); }
wxBitmap ConvertToBitmap() const;
#ifdef __WXGTK__
- wxBitmap ConvertToMonoBitmap( unsigned char red, unsigned char green, unsigned char blue );
+ wxBitmap ConvertToMonoBitmap( unsigned char red, unsigned char green, unsigned char blue ) const;
+#endif
#endif
void Create( int width, int height );
// creates an identical copy of the image (the = operator
// just raises the ref count)
wxImage Copy() const;
-
+
// return the new image with size width*height
wxImage GetSubImage( const wxRect& ) const;
-
+
// pastes image into this instance and takes care of
// the mask colour and out of bounds problems
- void Paste( const wxImage &image, int x, int y );
+ void Paste( const wxImage &image, int x, int y );
// return the new image with size width*height
wxImage Scale( int width, int height ) const;
void Replace( unsigned char r1, unsigned char g1, unsigned char b1,
unsigned char r2, unsigned char g2, unsigned char b2 );
+ // convert to monochrome image (<r,g,b> will be replaced by white, everything else by black)
+ wxImage ConvertToMono( unsigned char r, unsigned char g, unsigned char b ) const;
+
// 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 ) const;
unsigned char GetGreen( int x, int y ) const;
unsigned char GetBlue( int x, int y ) const;
+ // find first colour that is not used in the image and has higher
+ // RGB values than <startR,startG,startB>
+ bool FindFirstUnusedColour( unsigned char *r, unsigned char *g, unsigned char *b,
+ unsigned char startR = 1, unsigned char startG = 0,
+ unsigned char startB = 0 ) const;
+ // Set image's mask to the area of 'mask' that has <r,g,b> colour
+ bool SetMaskFromImage(const wxImage & mask,
+ unsigned char mr, unsigned char mg, unsigned char mb);
+
static bool CanRead( const wxString& name );
- virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_ANY );
- virtual bool LoadFile( const wxString& name, const wxString& mimetype );
+ 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 );
+ virtual bool LoadFile( const wxString& name, const wxString& mimetype, int index = -1 );
#if wxUSE_STREAMS
static bool CanRead( wxInputStream& stream );
- virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
- virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype );
+ static int GetImageCount( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
+ virtual bool LoadFile( wxInputStream& stream, long 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, int type );
- virtual bool SaveFile( const wxString& name, const wxString& mimetype );
+ virtual bool SaveFile( const wxString& name, int type ) const;
+ virtual bool SaveFile( const wxString& name, const wxString& mimetype ) const;
#if wxUSE_STREAMS
- virtual bool SaveFile( wxOutputStream& stream, int type );
- virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype );
+ virtual bool SaveFile( wxOutputStream& stream, int type ) const;
+ virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const;
#endif
bool Ok() const;
void SetMask( bool mask = TRUE );
bool HasMask() const;
+#if wxUSE_PALETTE
// Palette functions
bool HasPalette() const;
const wxPalette& GetPalette() const;
void SetPalette(const wxPalette& palette);
+#endif // wxUSE_PALETTE
// Option functions (arbitrary name/value mapping)
void SetOption(const wxString& name, const wxString& value);
int GetOptionInt(const wxString& name) const;
bool HasOption(const wxString& name) const;
- unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 );
- unsigned long ComputeHistogram( wxHashTable &h );
+ unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 ) const;
+
+ // Computes the histogram of the image and fills a hash table, indexed
+ // with integer keys built as 0xRRGGBB, containing wxImageHistogramEntry
+ // objects. Each of them contains an 'index' (useful to build a palette
+ // with the image colours) and a 'value', which is the number of pixels
+ // in the image with that colour.
+ // Returned value: # of entries in the histogram
+ unsigned long ComputeHistogram( wxImageHistogram &h ) const;
wxImage& operator = (const wxImage& image)
{
extern void WXDLLEXPORT wxInitAllImageHandlers();
+WXDLLEXPORT_DATA(extern wxImage) wxNullImage;
//-----------------------------------------------------------------------------
// wxImage handlers
#include "wx/imagjpeg.h"
#include "wx/imagtiff.h"
#include "wx/imagpnm.h"
+#include "wx/imagxpm.h"
+#include "wx/imagiff.h"
+
+#endif // wxUSE_IMAGE
#endif
// _WX_IMAGE_H_
projects / wxWidgets.git / blobdiff