wxPython/src/image.i

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        image.i
   3 // Purpose:     SWIG interface file for wxImage, wxImageHandler, etc.
   4 //
   5 // Author:      Robin Dunn
   6 //
   7 // Created:     28-Apr-1999
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 1998 by Total Control Software
  10 // Licence:     wxWindows license
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13
  14 %module image
  15
  16 %{
  17 #include "helpers.h"
  18 #include <wx/image.h>
  19 %}
  20
  21 //----------------------------------------------------------------------
  22
  23 %include typemaps.i
  24 %include my_typemaps.i
  25
  26 // Import some definitions of other classes, etc.
  27 %import _defs.i
  28 %import misc.i
  29 %import gdi.i
  30
  31 //---------------------------------------------------------------------------
  32
  33 class wxImageHandler {
  34 public:
  35     // wxImageHandler();    Abstract Base Class
  36     wxString GetName();
  37     wxString GetExtension();
  38     long GetType();
  39     wxString GetMimeType();
  40
  41     //bool LoadFile(wxImage* image, wxInputStream& stream);
  42     //bool SaveFile(wxImage* image, wxOutputStream& stream);
  43
  44     void SetName(const wxString& name);
  45     void SetExtension(const wxString& extension);
  46     void SetType(long type);
  47     void SetMimeType(const wxString& mimetype);
  48 };
  49
  50 //---------------------------------------------------------------------------
  51
  52 class wxPNGHandler : public wxImageHandler {
  53 public:
  54     wxPNGHandler();
  55 };
  56
  57
  58 class wxJPEGHandler : public wxImageHandler {
  59 public:
  60     wxJPEGHandler();
  61 };
  62
  63
  64 class wxBMPHandler : public wxImageHandler {
  65 public:
  66     wxBMPHandler();
  67 };
  68
  69
  70 class wxGIFHandler : public wxImageHandler {
  71 public:
  72     wxGIFHandler();
  73 };
  74
  75 class wxPNMHandler : public wxImageHandler {
  76 public:
  77     wxPNMHandler();
  78 };
  79
  80 class wxPCXHandler : public wxImageHandler {
  81 public:
  82     wxPCXHandler();
  83 };
  84
  85 class wxTIFFHandler : public wxImageHandler {
  86 public:
  87     wxTIFFHandler();
  88 };
  89
  90
  91 //---------------------------------------------------------------------------
  92
  93 class wxImage {
  94 public:
  95     wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY );
  96     ~wxImage();
  97
  98     wxBitmap ConvertToBitmap();
  99 #ifdef __WXGTK__
 100     wxBitmap ConvertToMonoBitmap( unsigned char red, unsigned char green, unsigned char blue ) const;
 101 #endif
 102     void Create( int width, int height );
 103     void Destroy();
 104     wxImage Scale( int width, int height );
 105     wxImage& Rescale(int width, int height);
 106
 107     void SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b );
 108     unsigned char GetRed( int x, int y );
 109     unsigned char GetGreen( int x, int y );
 110     unsigned char GetBlue( int x, int y );
 111
 112     static bool CanRead( const wxString& name );
 113     bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_ANY );
 114     %name(LoadMimeFile)bool LoadFile( const wxString& name, const wxString& mimetype );
 115
 116     bool SaveFile( const wxString& name, int type );
 117     %name(SaveMimeFile)bool SaveFile( const wxString& name, const wxString& mimetype );
 118
 119     bool Ok();
 120     int GetWidth();
 121     int GetHeight();
 122
 123     wxImage GetSubImage(const wxRect& rect);
 124     wxImage Copy();
 125     void Paste( const wxImage &image, int x, int y );
 126
 127     //unsigned char *GetData();
 128     //void SetData( unsigned char *data );
 129
 130     %addmethods {
 131         PyObject* GetData() {
 132             unsigned char* data = self->GetData();
 133             int len = self->GetWidth() * self->GetHeight() * 3;
 134             return PyString_FromStringAndSize((char*)data, len);
 135         }
 136
 137         void SetData(PyObject* data) {
 138             unsigned char* dataPtr;
 139
 140             if (! PyString_Check(data)) {
 141                 PyErr_SetString(PyExc_TypeError, "Expected string object");
 142                 return /* NULL */ ;
 143             }
 144
 145             size_t len = self->GetWidth() * self->GetHeight() * 3;
 146             dataPtr = (unsigned char*) malloc(len);
 147             memcpy(dataPtr, PyString_AsString(data), len);
 148             self->SetData(dataPtr);
 149         }
 150     }
 151
 152     void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );
 153     unsigned char GetMaskRed();
 154     unsigned char GetMaskGreen();
 155     unsigned char GetMaskBlue();
 156     void SetMask( bool mask = TRUE );
 157     bool HasMask();
 158
 159     wxImage Rotate(double angle, const wxPoint & centre_of_rotation,
 160                    bool interpolating = TRUE, wxPoint * offset_after_rotation = NULL) const ;
 161     wxImage Rotate90( bool clockwise = TRUE ) ;
 162     wxImage Mirror( bool horizontally = TRUE ) ;
 163
 164     void Replace( unsigned char r1, unsigned char g1, unsigned char b1,
 165                   unsigned char r2, unsigned char g2, unsigned char b2 );
 166
 167     unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 );
 168     // TODO: unsigned long ComputeHistogram( wxHashTable &h );
 169
 170     static void AddHandler( wxImageHandler *handler );
 171     static void InsertHandler( wxImageHandler *handler );
 172     static bool RemoveHandler( const wxString& name );
 173 };
 174
 175
 176 // Alternate constructors
 177 %new wxImage* wxEmptyImage(int width=0, int height=0);
 178 %new wxImage* wxImageFromMime(const wxString& name, const wxString& mimetype);
 179 %new wxImage* wxImageFromBitmap(const wxBitmap &bitmap);
 180 %{
 181     wxImage* wxEmptyImage(int width=0, int height=0) {
 182         if (width == 0 && height == 0)
 183             return new wxImage;
 184         else
 185             return new wxImage(width, height);
 186     }
 187
 188     wxImage* wxImageFromMime(const wxString& name, const wxString& mimetype) {
 189         return new wxImage(name, mimetype);
 190     }
 191
 192     wxImage* wxImageFromBitmap(const wxBitmap &bitmap) {
 193         return new wxImage(bitmap);
 194     }
 195 %}
 196
 197 void wxInitAllImageHandlers();
 198
 199
 200 %readonly
 201 %{
 202 #if 0
 203 %}
 204
 205 extern wxImage    wxNullImage;
 206
 207 %readwrite
 208 %{
 209 #endif
 210 %}
 211
 212
 213
 214 //---------------------------------------------------------------------------
 215 // This one is here to avoid circular imports
 216
 217 %new wxBitmap* wxBitmapFromImage(const wxImage& img, int depth=-1);
 218
 219 %{
 220     wxBitmap* wxBitmapFromImage(const wxImage& img, int depth=-1) {
 221         return new wxBitmap(img, depth);
 222     }
 223
 224 %}
 225
 226
 227 //---------------------------------------------------------------------------