wxPython/src/_image.i

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        _image.i
   3 // Purpose:     SWIG definitions for wxImage and such
   4 //
   5 // Author:      Robin Dunn
   6 //
   7 // Created:     25-Sept-2000
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2003 by Total Control Software
  10 // Licence:     wxWindows license
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 // Not a %module
  14
  15
  16 //---------------------------------------------------------------------------
  17
  18 %{
  19 #include "wx/wxPython/pyistream.h"
  20 %}
  21
  22 //---------------------------------------------------------------------------
  23
  24 enum {
  25     wxIMAGE_ALPHA_TRANSPARENT,
  26     wxIMAGE_ALPHA_THRESHOLD,
  27     wxIMAGE_ALPHA_OPAQUE
  28 };
  29
  30 // Constants for wxImage::Scale() for determining the level of quality
  31 enum
  32 {
  33     wxIMAGE_QUALITY_NORMAL = 0,
  34     wxIMAGE_QUALITY_HIGH = 1
  35 };
  36
  37 //---------------------------------------------------------------------------
  38 %newgroup
  39
  40 DocStr(wxImageHandler,
  41 "This is the base class for implementing image file loading/saving, and
  42 image creation from data. It is used within `wx.Image` and is not
  43 normally seen by the application.", "");
  44 class wxImageHandler : public wxObject {
  45 public:
  46     // wxImageHandler();    Abstract Base Class
  47     wxString GetName();
  48     wxString GetExtension();
  49     long GetType();
  50     wxString GetMimeType();
  51
  52     //bool LoadFile(wxImage* image, wxInputStream& stream);
  53     //bool SaveFile(wxImage* image, wxOutputStream& stream);
  54     //virtual int GetImageCount( wxInputStream& stream );
  55
  56     bool CanRead( const wxString& name );
  57     %Rename(CanReadStream, bool, CanRead( wxInputStream& stream ));
  58
  59     void SetName(const wxString& name);
  60     void SetExtension(const wxString& extension);
  61     void SetType(long type);
  62     void SetMimeType(const wxString& mimetype);
  63
  64     %property(Extension, GetExtension, SetExtension, doc="See `GetExtension` and `SetExtension`");
  65     %property(MimeType, GetMimeType, SetMimeType, doc="See `GetMimeType` and `SetMimeType`");
  66     %property(Name, GetName, SetName, doc="See `GetName` and `SetName`");
  67     %property(Type, GetType, SetType, doc="See `GetType` and `SetType`");
  68 };
  69
  70
  71 //---------------------------------------------------------------------------
  72
  73
  74 DocStr(wxPyImageHandler,
  75 "This is the base class for implementing image file loading/saving, and
  76 image creation from data, all written in Python.  To create a custom
  77 image handler derive a new class from wx.PyImageHandler and provide
  78 the following methods::
  79
  80     def DoCanRead(self, stream) --> bool
  81         '''Check if this handler can read the image on the stream'''
  82
  83     def LoadFile(self, image, stream, verbose, index) --> bool
  84         '''Load image data from the stream and load it into image.'''
  85
  86     def SaveFile(self, image, stream, verbose) --> bool
  87         '''Save the iamge data in image to the stream using
  88            this handler's image file format.'''
  89
  90     def GetImageCount(self, stream) --> int
  91         '''If this image format can hold more than one image,
  92            how many does the image on the stream have?'''
  93
  94 To activate your handler create an instance of it and pass it to
  95 `wx.Image_AddHandler`.  Be sure to call `SetName`, `SetType`, and
  96 `SetExtension` from your constructor.
  97 ", "");
  98
  99 class wxPyImageHandler: public wxImageHandler {
 100 public:
 101     %pythonAppend wxPyImageHandler() "self._SetSelf(self)"
 102     wxPyImageHandler();
 103     void _SetSelf(PyObject *self);
 104 };
 105
 106
 107 //---------------------------------------------------------------------------
 108
 109
 110 class wxImageHistogram /* : public wxImageHistogramBase */
 111 {
 112 public:
 113     wxImageHistogram();
 114
 115     DocStr(MakeKey, "Get the key in the histogram for the given RGB values", "");
 116     static unsigned long MakeKey(byte r,
 117                                  byte g,
 118                                  byte b);
 119
 120     DocDeclAStr(
 121         bool, FindFirstUnusedColour(byte *OUTPUT,
 122                                     byte *OUTPUT,
 123                                     byte *OUTPUT,
 124                                     byte startR = 1,
 125                                     byte startG = 0,
 126                                     byte startB = 0 ) const,
 127         "FindFirstUnusedColour(int startR=1, int startG=0, int startB=0) -> (success, r, g, b)",
 128         "Find first colour that is not used in the image and has higher RGB
 129 values than startR, startG, startB.  Returns a tuple consisting of a
 130 success flag and rgb values.", "");
 131
 132     %extend {
 133         DocStr(GetCount,
 134                "Returns the pixel count for the given key.  Use `MakeKey` to create a
 135 key value from a RGB tripple.", "");
 136         unsigned long GetCount(unsigned long key) {
 137             wxImageHistogramEntry e = (*self)[key];
 138             return e.value;
 139         }
 140
 141         DocStr(GetCountRGB,
 142                "Returns the pixel count for the given RGB values.", "");
 143         unsigned long GetCountRGB(byte r,
 144                                   byte g,
 145                                   byte b) {
 146             unsigned long key = wxImageHistogram::MakeKey(r, g, b);
 147             wxImageHistogramEntry e = (*self)[key];
 148             return e.value;
 149         }
 150
 151         DocStr(GetCountColour,
 152                "Returns the pixel count for the given `wx.Colour` value.", "");
 153         unsigned long GetCountColour(const wxColour& colour) {
 154             unsigned long key = wxImageHistogram::MakeKey(colour.Red(),
 155                                                           colour.Green(),
 156                                                           colour.Blue());
 157             wxImageHistogramEntry e = (*self)[key];
 158             return e.value;
 159         }
 160     }
 161
 162 };
 163
 164
 165 //---------------------------------------------------------------------------
 166
 167 DocStr(wxImage,
 168 "A platform-independent image class.  An image can be created from
 169 data, or using `wx.Bitmap.ConvertToImage`, or loaded from a file in a
 170 variety of formats.  Functions are available to set and get image
 171 bits, so it can be used for basic image manipulation.
 172
 173 A wx.Image cannot be drawn directly to a `wx.DC`.  Instead, a
 174 platform-specific `wx.Bitmap` object must be created from it using the
 175 `wx.BitmapFromImage` constructor. This bitmap can then be drawn in a
 176 device context, using `wx.DC.DrawBitmap`.
 177
 178 One colour value of the image may be used as a mask colour which will
 179 lead to the automatic creation of a `wx.Mask` object associated to the
 180 bitmap object.
 181
 182 wx.Image supports alpha channel data, that is in addition to a byte
 183 for the red, green and blue colour components for each pixel it also
 184 stores a byte representing the pixel opacity. An alpha value of 0
 185 corresponds to a transparent pixel (null opacity) while a value of 255
 186 means that the pixel is 100% opaque.
 187
 188 Unlike RGB data, not all images have an alpha channel and before using
 189 `GetAlpha` you should check if this image contains an alpha channel
 190 with `HasAlpha`. Note that currently only images loaded from PNG files
 191 with transparency information will have an alpha channel.", "");
 192
 193
 194 %{
 195 // Pull the nested class out to the top level for SWIG's sake
 196 #define wxImage_RGBValue wxImage::RGBValue
 197 #define wxImage_HSVValue wxImage::HSVValue
 198 %}
 199
 200 DocStr(wxImage_RGBValue,
 201 "An object that contains values for red, green and blue which represent
 202 the value of a color. It is used by `wx.Image.HSVtoRGB` and
 203 `wx.Image.RGBtoHSV`, which converts between HSV color space and RGB
 204 color space.", "");
 205 class wxImage_RGBValue
 206 {
 207 public:
 208     DocCtorStr(
 209         wxImage_RGBValue(byte r=0, byte g=0, byte b=0),
 210         "Constructor.", "");
 211     byte red;
 212     byte green;
 213     byte blue;
 214 };
 215
 216
 217 DocStr(wxImage_HSVValue,
 218 "An object that contains values for hue, saturation and value which
 219 represent the value of a color.  It is used by `wx.Image.HSVtoRGB` and
 220 `wx.Image.RGBtoHSV`, which +converts between HSV color space and RGB
 221 color space.", "");
 222 class wxImage_HSVValue
 223 {
 224 public:
 225     DocCtorStr(
 226         wxImage_HSVValue(double h=0.0, double s=0.0, double v=0.0),
 227         "Constructor.", "");
 228     double hue;
 229     double saturation;
 230     double value;
 231 };
 232
 233
 234
 235 class wxImage : public wxObject {
 236 public:
 237     %typemap(out) wxImage*;    // turn off this typemap
 238
 239     DocCtorStr(
 240         wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 ),
 241         "Loads an image from a file.",
 242         "
 243     :param name:  Name of the file from which to load the image.
 244
 245     :param type: May be one of the following:
 246
 247         ====================    =======================================
 248         wx.BITMAP_TYPE_BMP      Load a Windows bitmap file.
 249         wx.BITMAP_TYPE_GIF      Load a GIF bitmap file.
 250         wx.BITMAP_TYPE_JPEG     Load a JPEG bitmap file.
 251         wx.BITMAP_TYPE_PNG      Load a PNG bitmap file.
 252         wx.BITMAP_TYPE_PCX      Load a PCX bitmap file.
 253         wx.BITMAP_TYPE_PNM      Load a PNM bitmap file.
 254         wx.BITMAP_TYPE_TIF      Load a TIFF bitmap file.
 255         wx.BITMAP_TYPE_XPM      Load a XPM bitmap file.
 256         wx.BITMAP_TYPE_ICO      Load a Windows icon file (ICO).
 257         wx.BITMAP_TYPE_CUR      Load a Windows cursor file (CUR).
 258         wx.BITMAP_TYPE_ANI      Load a Windows animated cursor file (ANI).
 259         wx.BITMAP_TYPE_ANY      Will try to autodetect the format.
 260         ====================    =======================================
 261
 262     :param index: Index of the image to load in the case that the
 263         image file contains multiple images. This is only used by GIF,
 264         ICO and TIFF handlers. The default value (-1) means to choose
 265         the default image and is interpreted as the first image (the
 266         one with index=0) by the GIF and TIFF handler and as the
 267         largest and most colourful one by the ICO handler.
 268
 269 :see: `wx.ImageFromMime`, `wx.ImageFromStream`, `wx.ImageFromStreamMime`,
 270       `wx.EmptyImage`, `wx.ImageFromBitmap`, `wx.ImageFromBuffer`,
 271       `wx.ImageFromData`, `wx.ImageFromDataWithAlpha`
 272 ");
 273
 274     ~wxImage();
 275
 276     // Alternate constructors
 277     DocCtorStrName(
 278         wxImage(const wxString& name, const wxString& mimetype, int index = -1),
 279         "Loads an image from a file, using a MIME type string (such as
 280 'image/jpeg') to specify image type.", "
 281
 282 :see: `wx.Image`",
 283         ImageFromMime);
 284
 285     DocCtorStrName(
 286         wxImage(wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1),
 287         "Loads an image from an input stream, or any readable Python file-like
 288 object.", "
 289
 290 :see: `wx.Image`",
 291         ImageFromStream);
 292
 293     DocCtorStrName(
 294         wxImage(wxInputStream& stream, const wxString& mimetype, int index = -1 ),
 295         "Loads an image from an input stream, or any readable Python file-like
 296 object, specifying the image format with a MIME type string.", "
 297
 298 :see: `wx.Image`",
 299         ImageFromStreamMime);
 300
 301     %extend {
 302         %RenameDocCtor(
 303             EmptyImage,
 304             "Construct an empty image of a given size, optionally setting all
 305 pixels to black.", "
 306
 307 :see: `wx.Image`",
 308             wxImage(int width=0, int height=0, bool clear = true))
 309             {
 310                 if (width > 0 && height > 0)
 311                     return new wxImage(width, height, clear);
 312                 else
 313                     return new wxImage;
 314             }
 315
 316
 317        MustHaveApp(wxImage(const wxBitmap &bitmap));
 318
 319         %RenameDocCtor(
 320             ImageFromBitmap,
 321             "Construct an Image from a `wx.Bitmap`.", "
 322
 323 :see: `wx.Image`",
 324             wxImage(const wxBitmap &bitmap))
 325             {
 326                 return new wxImage(bitmap.ConvertToImage());
 327             }
 328
 329         %RenameDocCtor(
 330             ImageFromData,
 331             "Construct an Image from a buffer of RGB bytes.  Accepts either a
 332 string or a buffer object holding the data and the length of the data
 333 must be width*height*3.", "
 334
 335 :see: `wx.Image`",
 336             wxImage(int width, int height, buffer data, int DATASIZE))
 337             {
 338                 if (DATASIZE != width*height*3) {
 339                     wxPyErr_SetString(PyExc_ValueError, "Invalid data buffer size.");
 340                     return NULL;
 341                 }
 342
 343                 // Copy the source data so the wxImage can clean it up later
 344                 buffer copy = (buffer)malloc(DATASIZE);
 345                 if (copy == NULL) {
 346                     wxPyBLOCK_THREADS(PyErr_NoMemory());
 347                     return NULL;
 348                 }
 349                 memcpy(copy, data, DATASIZE);
 350                 return new wxImage(width, height, copy, false);
 351             }
 352
 353
 354         %RenameDocCtor(
 355             ImageFromDataWithAlpha,
 356             "Construct an Image from a buffer of RGB bytes with an Alpha channel.
 357 Accepts either a string or a buffer object holding the data and the
 358 length of the data must be width*height*3 bytes, and the length of the
 359 alpha data must be width*height bytes.", "
 360
 361 :see: `wx.Image`",
 362             wxImage(int width, int height, buffer data, int DATASIZE, buffer alpha, int ALPHASIZE))
 363             {
 364                 if (DATASIZE != width*height*3) {
 365                     wxPyErr_SetString(PyExc_ValueError, "Invalid data buffer size.");
 366                     return NULL;
 367                 }
 368                 if (ALPHASIZE != width*height) {
 369                     wxPyErr_SetString(PyExc_ValueError, "Invalid alpha buffer size.");
 370                     return NULL;
 371                 }
 372
 373                 // Copy the source data so the wxImage can clean it up later
 374                 buffer dcopy = (buffer)malloc(DATASIZE);
 375                 if (dcopy == NULL) {
 376                     wxPyBLOCK_THREADS(PyErr_NoMemory());
 377                     return NULL;
 378                 }
 379                 memcpy(dcopy, data, DATASIZE);
 380
 381                 buffer acopy = (buffer)malloc(ALPHASIZE);
 382                 if (acopy == NULL) {
 383                     wxPyBLOCK_THREADS(PyErr_NoMemory());
 384                     return NULL;
 385                 }
 386                 memcpy(acopy, alpha, ALPHASIZE);
 387
 388                 return new wxImage(width, height, dcopy, acopy, false);
 389             }
 390     }
 391
 392     // TODO: wxImage( char** xpmData );
 393
 394     // Turn the typemap back on again
 395     %typemap(out) wxImage* { $result = wxPyMake_wxObject($1, $owner); }
 396
 397
 398     DocDeclStr(
 399         void , Create( int width, int height, bool clear=true ),
 400         "Creates a fresh image.  If clear is ``True``, the new image will be
 401 initialized to black. Otherwise, the image data will be uninitialized.", "");
 402
 403     DocDeclStr(
 404         void , Destroy(),
 405         "Destroys the image data.", "");
 406
 407
 408     DocDeclStr(
 409         wxImage , Scale( int width, int height, int quality = wxIMAGE_QUALITY_NORMAL ),
 410         "Returns a scaled version of the image. This is also useful for scaling
 411 bitmaps in general as the only other way to scale bitmaps is to blit a
 412 `wx.MemoryDC` into another `wx.MemoryDC`.  The ``quality`` parameter
 413 specifies what method to use for resampling the image.  It can be
 414 either wx.IMAGE_QUALITY_NORMAL, which uses the normal default scaling
 415 method of pixel replication, or wx.IMAGE_QUALITY_HIGH which uses
 416 bicubic and box averaging resampling methods for upsampling and
 417 downsampling respectively.", "
 418
 419 It should be noted that although using wx.IMAGE_QUALITY_HIGH produces
 420 much nicer looking results it is a slower method.  Downsampling will
 421 use the box averaging method which seems to operate very fast.  If you
 422 are upsampling larger images using this method you will most likely
 423 notice that it is a bit slower and in extreme cases it will be quite
 424 substantially slower as the bicubic algorithm has to process a lot of
 425 data.
 426
 427 It should also be noted that the high quality scaling may not work as
 428 expected when using a single mask colour for transparency, as the
 429 scaling will blur the image and will therefore remove the mask
 430 partially. Using the alpha channel will work.
 431
 432 :see: `Rescale`");
 433
 434
 435     wxImage ResampleBox(int width, int height) const;
 436     wxImage ResampleBicubic(int width, int height) const;
 437
 438     DocDeclStr(
 439         wxImage , Blur(int radius),
 440         "Blurs the image in both horizontal and vertical directions by the
 441 specified pixel ``radius``. This should not be used when using a
 442 single mask colour for transparency.", "");
 443
 444     DocDeclStr(
 445         wxImage , BlurHorizontal(int radius),
 446         "Blurs the image in the horizontal direction only. This should not be
 447 used when using a single mask colour for transparency.
 448 ", "");
 449
 450     DocDeclStr(
 451         wxImage , BlurVertical(int radius),
 452         "Blurs the image in the vertical direction only. This should not be
 453 used when using a single mask colour for transparency.", "");
 454
 455
 456
 457     DocDeclStr(
 458         wxImage , ShrinkBy( int xFactor , int yFactor ) const ,
 459         "Return a version of the image scaled smaller by the given factors.", "");
 460
 461     DocDeclStr(
 462         wxImage& , Rescale(int width, int height, int quality = wxIMAGE_QUALITY_NORMAL),
 463         "Changes the size of the image in-place by scaling it: after a call to
 464 this function, the image will have the given width and height.
 465
 466 Returns the (modified) image itself.", "
 467
 468 :see: `Scale`");
 469
 470
 471     // resizes the image in place
 472     DocDeclStr(
 473         wxImage& , Resize( const wxSize& size, const wxPoint& pos,
 474                            int r = -1, int g = -1, int b = -1 ),
 475         "Changes the size of the image in-place without scaling it, by adding
 476 either a border with the given colour or cropping as necessary. The
 477 image is pasted into a new image with the given size and background
 478 colour at the position pos relative to the upper left of the new
 479 image. If red = green = blue = -1 then use either the current mask
 480 colour if set or find, use, and set a suitable mask colour for any
 481 newly exposed areas.
 482
 483 Returns the (modified) image itself.", "
 484
 485 :see: `Size`");
 486
 487
 488     DocDeclStr(
 489         void , SetRGB( int x, int y, byte r, byte g, byte b ),
 490         "Sets the pixel at the given coordinate. This routine performs
 491 bounds-checks for the coordinate so it can be considered a safe way to
 492 manipulate the data, but in some cases this might be too slow so that
 493 the data will have to be set directly. In that case you will have to
 494 get access to the image data using the `GetData` method.", "");
 495
 496
 497     DocDeclStrName(
 498             void, SetRGB( const wxRect& rect,
 499                           byte r, byte g, byte b ),
 500             "Sets the colour of the pixels within the given rectangle. This routine
 501 performs bounds-checks for the rectangle so it can be considered a
 502 safe way to manipulate the data.", "",
 503             SetRGBRect);
 504
 505     DocDeclStr(
 506         byte , GetRed( int x, int y ),
 507         "Returns the red intensity at the given coordinate.", "");
 508
 509     DocDeclStr(
 510         byte , GetGreen( int x, int y ),
 511         "Returns the green intensity at the given coordinate.", "");
 512
 513     DocDeclStr(
 514         byte , GetBlue( int x, int y ),
 515         "Returns the blue intensity at the given coordinate.", "");
 516
 517
 518     DocDeclStr(
 519         void , SetAlpha(int x, int y, byte alpha),
 520         "Sets the alpha value for the given pixel. This function should only be
 521 called if the image has alpha channel data, use `HasAlpha` to check
 522 for this.", "");
 523
 524     DocDeclStr(
 525         byte , GetAlpha(int x, int y),
 526         "Returns the alpha value for the given pixel. This function may only be
 527 called for the images with alpha channel, use `HasAlpha` to check for
 528 this.
 529
 530 The returned value is the *opacity* of the image, i.e. the value of 0
 531 corresponds to the fully transparent pixels while the value of 255 to
 532 the fully opaque pixels.", "");
 533
 534     DocDeclStr(
 535         bool , HasAlpha(),
 536         "Returns true if this image has alpha channel, false otherwise.", "
 537
 538 :see: `GetAlpha`, `SetAlpha`");
 539
 540
 541     DocDeclStr(
 542         void , InitAlpha(),
 543         "Initializes the image alpha channel data. It is an error to call it if
 544 the image already has alpha data. If it doesn't, alpha data will be by
 545 default initialized to all pixels being fully opaque. But if the image
 546 has a a mask colour, all mask pixels will be completely transparent.", "");
 547
 548
 549     DocDeclStr(
 550         bool , IsTransparent(int x, int y,
 551                              byte threshold = wxIMAGE_ALPHA_THRESHOLD) const,
 552         "Returns ``True`` if this pixel is masked or has an alpha value less
 553 than the spcified threshold.", "");
 554
 555
 556     // find first colour that is not used in the image and has higher
 557     // RGB values than <startR,startG,startB>
 558     DocDeclAStr(
 559         bool, FindFirstUnusedColour( byte *OUTPUT, byte *OUTPUT, byte *OUTPUT,
 560                                      byte startR = 0, byte startG = 0, byte startB = 0 ) const,
 561         "FindFirstUnusedColour(int startR=1, int startG=0, int startB=0) -> (success, r, g, b)",
 562         "Find first colour that is not used in the image and has higher RGB
 563 values than startR, startG, startB.  Returns a tuple consisting of a
 564 success flag and rgb values.", "");
 565
 566
 567     DocDeclStr(
 568         bool , ConvertAlphaToMask(byte threshold = wxIMAGE_ALPHA_THRESHOLD),
 569         "If the image has alpha channel, this method converts it to mask. All
 570 pixels with alpha value less than ``threshold`` are replaced with the
 571 mask colour and the alpha channel is removed. The mask colour is
 572 chosen automatically using `FindFirstUnusedColour`.
 573
 574 If the image image doesn't have alpha channel, ConvertAlphaToMask does
 575 nothing.", "");
 576
 577
 578     DocDeclStr(
 579         bool , ConvertColourToAlpha( byte r, byte g, byte b ),
 580         "This method converts an image where the original alpha information is
 581 only available as a shades of a colour (actually shades of grey)
 582 typically when you draw anti-aliased text into a bitmap. The DC
 583 drawing routines draw grey values on the black background although
 584 they actually mean to draw white with differnt alpha values.  This
 585 method reverses it, assuming a black (!) background and white text.
 586 The method will then fill up the whole image with the colour given.", "");
 587
 588
 589
 590     DocDeclStr(
 591         bool , SetMaskFromImage(const wxImage & mask,
 592                                 byte mr, byte mg, byte mb),
 593         "Sets the image's mask so that the pixels that have RGB value of
 594 ``(mr,mg,mb)`` in ``mask`` will be masked in this image. This is done
 595 by first finding an unused colour in the image, setting this colour as
 596 the mask colour and then using this colour to draw all pixels in the
 597 image who corresponding pixel in mask has given RGB value.
 598
 599 Returns ``False`` if ``mask`` does not have same dimensions as the
 600 image or if there is no unused colour left. Returns ``True`` if the
 601 mask was successfully applied.
 602
 603 Note that this method involves computing the histogram, which is
 604 computationally intensive operation.", "");
 605
 606
 607 //      void DoFloodFill (wxCoord x, wxCoord y,
 608 //          const wxBrush & fillBrush,
 609 //          const wxColour& testColour,
 610 //          int style = wxFLOOD_SURFACE,
 611 //          int LogicalFunction = wxCOPY /* currently unused */ ) ;
 612
 613     DocDeclStr(
 614         static bool , CanRead( const wxString& filename ),
 615         "Returns True if the image handlers can read this file.", "");
 616
 617     DocDeclStr(
 618         static int , GetImageCount( const wxString& filename, long type = wxBITMAP_TYPE_ANY ),
 619         "If the image file contains more than one image and the image handler
 620 is capable of retrieving these individually, this function will return
 621 the number of available images.", "");
 622
 623
 624     DocDeclStr(
 625         bool , LoadFile( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 ),
 626         "Loads an image from a file. If no handler type is provided, the
 627 library will try to autodetect the format.", "");
 628
 629     DocDeclStrName(
 630         bool , LoadFile( const wxString& name, const wxString& mimetype, int index = -1 ),
 631         "Loads an image from a file, specifying the image type with a MIME type
 632 string.", "",
 633         LoadMimeFile);
 634
 635
 636     DocDeclStr(
 637         bool , SaveFile( const wxString& name, int type ),
 638         "Saves an image in the named file.", "");
 639
 640
 641     DocDeclStrName(
 642         bool , SaveFile( const wxString& name, const wxString& mimetype ),
 643         "Saves an image in the named file.", "",
 644         SaveMimeFile);
 645
 646
 647     DocDeclStrName(
 648         static bool , CanRead( wxInputStream& stream ),
 649         "Returns True if the image handlers can read an image file from the
 650 data currently on the input stream, or a readable Python file-like
 651 object.", "",
 652         CanReadStream);
 653
 654
 655     DocDeclStrName(
 656         bool , LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 ),
 657         "Loads an image from an input stream or a readable Python file-like
 658 object. If no handler type is provided, the library will try to
 659 autodetect the format.", "",
 660         LoadStream);
 661
 662
 663     DocDeclStrName(
 664         bool , LoadFile( wxInputStream& stream, const wxString& mimetype, int index = -1 ),
 665         "Loads an image from an input stream or a readable Python file-like
 666 object, using a MIME type string to specify the image file format.", "",
 667         LoadMimeStream);
 668
 669
 670     DocDeclStr(
 671         bool , IsOk(),
 672         "Returns true if image data is present.", "");
 673     %pythoncode { Ok = IsOk }
 674
 675     DocDeclStr(
 676         int , GetWidth(),
 677         "Gets the width of the image in pixels.", "");
 678
 679     DocDeclStr(
 680         int , GetHeight(),
 681         "Gets the height of the image in pixels.", "");
 682
 683
 684     %extend {
 685         DocStr(GetSize,
 686                "Returns the size of the image in pixels.", "");
 687         wxSize GetSize() {
 688             wxSize size(self->GetWidth(), self->GetHeight());
 689             return size;
 690         }
 691     }
 692
 693
 694     DocDeclStr(
 695         wxImage , GetSubImage(const wxRect& rect),
 696         "Returns a sub image of the current one as long as the rect belongs
 697 entirely to the image.", "");
 698
 699
 700     DocDeclStr(
 701         wxImage , Size( const wxSize& size, const wxPoint& pos,
 702                         int r = -1, int g = -1, int b = -1 ) const,
 703         "Returns a resized version of this image without scaling it by adding
 704 either a border with the given colour or cropping as necessary. The
 705 image is pasted into a new image with the given size and background
 706 colour at the position ``pos`` relative to the upper left of the new
 707 image. If red = green = blue = -1 then use either the current mask
 708 colour if set or find, use, and set a suitable mask colour for any
 709 newly exposed areas.", "
 710
 711 :see: `Resize`");
 712
 713
 714     DocDeclStr(
 715         wxImage , Copy(),
 716         "Returns an identical copy of the image.", "");
 717
 718     DocDeclStr(
 719         void , Paste( const wxImage &image, int x, int y ),
 720         "Pastes ``image`` into this instance and takes care of the mask colour
 721 and any out of bounds problems.", "");
 722
 723
 724     //unsigned char *GetData();
 725     //void SetData( unsigned char *data );
 726
 727     %extend {
 728         DocStr(GetData,
 729                "Returns a string containing a copy of the RGB bytes of the image.", "");
 730         PyObject* GetData()
 731         {
 732             buffer data = self->GetData();
 733             int len = self->GetWidth() * self->GetHeight() * 3;
 734             PyObject* rv;
 735             wxPyBLOCK_THREADS( rv = PyString_FromStringAndSize((char*)data, len));
 736             return rv;
 737         }
 738         DocStr(SetData,
 739                "Resets the Image's RGB data from a buffer of RGB bytes.  Accepts
 740 either a string or a buffer object holding the data and the length of
 741 the data must be width*height*3.", "");
 742         void SetData(buffer data, int DATASIZE)
 743         {
 744             if (DATASIZE != self->GetWidth() * self->GetHeight() * 3) {
 745                 wxPyErr_SetString(PyExc_ValueError, "Invalid data buffer size.");
 746                 return;
 747             }
 748             buffer copy = (buffer)malloc(DATASIZE);
 749             if (copy == NULL) {
 750                 wxPyBLOCK_THREADS(PyErr_NoMemory());
 751                 return;
 752             }
 753             memcpy(copy, data, DATASIZE);
 754             self->SetData(copy, false);
 755             // wxImage takes ownership of copy...
 756         }
 757
 758
 759         DocStr(GetDataBuffer,
 760                "Returns a writable Python buffer object that is pointing at the RGB
 761 image data buffer inside the wx.Image. You need to ensure that you do
 762 not use this buffer object after the image has been destroyed.", "");
 763         PyObject* GetDataBuffer()
 764         {
 765             buffer data = self->GetData();
 766             int len = self->GetWidth() * self->GetHeight() * 3;
 767             PyObject* rv;
 768             wxPyBLOCK_THREADS( rv = PyBuffer_FromReadWriteMemory(data, len) );
 769             return rv;
 770         }
 771
 772         DocStr(SetDataBuffer,
 773                "Sets the internal image data pointer to point at a Python buffer
 774 object.  This can save making an extra copy of the data but you must
 775 ensure that the buffer object lives longer than the wx.Image does.", "");
 776         void SetDataBuffer(buffer data, int DATASIZE)
 777         {
 778             if (DATASIZE != self->GetWidth() * self->GetHeight() * 3) {
 779                 wxPyErr_SetString(PyExc_ValueError, "Invalid data buffer size.");
 780                 return;
 781             }
 782             self->SetData(data, true);
 783         }
 784
 785
 786
 787         DocStr(GetAlphaData,
 788                "Returns a string containing a copy of the alpha bytes of the image.", "");
 789         PyObject* GetAlphaData() {
 790             buffer data = self->GetAlpha();
 791             if (! data) {
 792                 RETURN_NONE();
 793             } else {
 794                 int len = self->GetWidth() * self->GetHeight();
 795                 PyObject* rv;
 796                 wxPyBLOCK_THREADS( rv = PyString_FromStringAndSize((char*)data, len) );
 797                 return rv;
 798             }
 799         }
 800
 801         DocStr(SetAlphaData,
 802                "Resets the Image's alpha data from a buffer of bytes.  Accepts either
 803 a string or a buffer object holding the data and the length of the
 804 data must be width*height.", "");
 805         void SetAlphaData(buffer alpha, int ALPHASIZE)
 806         {
 807             if (ALPHASIZE != self->GetWidth() * self->GetHeight()) {
 808                 wxPyErr_SetString(PyExc_ValueError, "Invalid alpha buffer size.");
 809                 return;
 810             }
 811             buffer acopy = (buffer)malloc(ALPHASIZE);
 812             if (acopy == NULL) {
 813                 wxPyBLOCK_THREADS(PyErr_NoMemory());
 814                 return;
 815             }
 816             memcpy(acopy, alpha, ALPHASIZE);
 817             self->SetAlpha(acopy, false);
 818             // wxImage takes ownership of acopy...
 819         }
 820
 821
 822
 823         DocStr(GetAlphaBuffer,
 824                "Returns a writable Python buffer object that is pointing at the Alpha
 825 data buffer inside the wx.Image. You need to ensure that you do not
 826 use this buffer object after the image has been destroyed.", "");
 827         PyObject* GetAlphaBuffer()
 828         {
 829             buffer data = self->GetAlpha();
 830             int len = self->GetWidth() * self->GetHeight();
 831             PyObject* rv;
 832             wxPyBLOCK_THREADS( rv = PyBuffer_FromReadWriteMemory(data, len) );
 833             return rv;
 834         }
 835
 836
 837         DocStr(SetAlphaBuffer,
 838                "Sets the internal image alpha pointer to point at a Python buffer
 839 object.  This can save making an extra copy of the data but you must
 840 ensure that the buffer object lives as long as the wx.Image does.", "");
 841         void SetAlphaBuffer(buffer alpha, int ALPHASIZE)
 842         {
 843             if (ALPHASIZE != self->GetWidth() * self->GetHeight()) {
 844                 wxPyErr_SetString(PyExc_ValueError, "Invalid alpha buffer size.");
 845                 return;
 846             }
 847             self->SetAlpha(alpha, true);
 848         }
 849     }
 850
 851
 852
 853     DocDeclStr(
 854         void , SetMaskColour( byte r, byte g, byte b ),
 855         "Sets the mask colour for this image (and tells the image to use the
 856 mask).", "");
 857
 858
 859     DocDeclAStr(
 860         /*bool*/ void , GetOrFindMaskColour( byte *OUTPUT,
 861                                              byte *OUTPUT,
 862                                              byte *OUTPUT ) const,
 863         "GetOrFindMaskColour() -> (r,g,b)",
 864         "Get the current mask colour or find a suitable colour.", "");
 865
 866
 867     DocDeclStr(
 868         byte , GetMaskRed(),
 869         "Gets the red component of the mask colour.", "");
 870
 871     DocDeclStr(
 872         byte , GetMaskGreen(),
 873         "Gets the green component of the mask colour.", "");
 874
 875     DocDeclStr(
 876         byte , GetMaskBlue(),
 877         "Gets the blue component of the mask colour.", "");
 878
 879     DocDeclStr(
 880         void , SetMask( bool mask = true ),
 881         "Specifies whether there is a mask or not. The area of the mask is
 882 determined by the current mask colour.", "");
 883
 884     DocDeclStr(
 885         bool , HasMask(),
 886         "Returns ``True`` if there is a mask active, ``False`` otherwise.", "");
 887
 888
 889     DocDeclStr(
 890         wxImage , Rotate(double angle, const wxPoint & centre_of_rotation,
 891                          bool interpolating = true, wxPoint * offset_after_rotation = NULL) const ,
 892         "Rotates the image about the given point, by ``angle`` radians. Passing
 893 ``True`` to ``interpolating`` results in better image quality, but is
 894 slower. If the image has a mask, then the mask colour is used for the
 895 uncovered pixels in the rotated image background. Otherwise, black
 896 will be used as the fill colour.
 897
 898 Returns the rotated image, leaving this image intact.", "");
 899
 900     DocDeclStr(
 901         wxImage , Rotate90( bool clockwise = true ) ,
 902         "Returns a copy of the image rotated 90 degrees in the direction
 903 indicated by ``clockwise``.", "");
 904
 905     DocDeclStr(
 906         wxImage , Mirror( bool horizontally = true ) ,
 907         "Returns a mirrored copy of the image. The parameter ``horizontally``
 908 indicates the orientation.", "");
 909
 910
 911     DocDeclStr(
 912         void , Replace( byte r1, byte g1, byte b1,
 913                         byte r2, byte g2, byte b2 ),
 914         "Replaces the colour specified by ``(r1,g1,b1)`` by the colour
 915 ``(r2,g2,b2)``.", "");
 916
 917     DocDeclStr(
 918         wxImage , ConvertToGreyscale( double lr = 0.299,
 919                                       double lg = 0.587,
 920                                       double lb = 0.114 ) const,
 921         "Convert to greyscale image. Uses the luminance component (Y) of the
 922 image.  The luma value (YUV) is calculated using (R * lr) + (G * lg) + (B * lb),
 923 defaults to ITU-T BT.601", "");
 924
 925
 926     DocDeclStr(
 927         wxImage , ConvertToMono( byte r, byte g, byte b ) const,
 928         "Returns monochromatic version of the image. The returned image has
 929 white colour where the original has ``(r,g,b)`` colour and black
 930 colour everywhere else.", "");
 931
 932
 933     DocDeclStr(
 934         void , SetOption(const wxString& name, const wxString& value),
 935         "Sets an image handler defined option.  For example, when saving as a
 936 JPEG file, the option ``wx.IMAGE_OPTION_QUALITY`` is used, which is a
 937 number between 0 and 100 (0 is terrible, 100 is very good).", "
 938
 939     ================================= ===
 940     wx.IMAGE_OPTION_BMP_FORMAT
 941     wx.IMAGE_OPTION_CUR_HOTSPOT_X
 942     wx.IMAGE_OPTION_CUR_HOTSPOT_Y
 943     wx.IMAGE_OPTION_RESOLUTION
 944     wx.IMAGE_OPTION_RESOLUTIONX
 945     wx.IMAGE_OPTION_RESOLUTIONY
 946     wx.IMAGE_OPTION_RESOLUTIONUNIT
 947     wx.IMAGE_OPTION_QUALITY
 948     wx.IMAGE_OPTION_BITSPERSAMPLE
 949     wx.IMAGE_OPTION_SAMPLESPERPIXEL
 950     wx.IMAGE_OPTION_COMPRESSION
 951     wx.IMAGE_OPTION_IMAGEDESCRIPTOR
 952     wx.IMAGE_OPTION_PNG_FORMAT
 953     wx.IMAGE_OPTION_PNG_BITDEPTH
 954     ================================= ===
 955
 956 :see: `HasOption`, `GetOption`, `GetOptionInt`, `SetOptionInt`");
 957
 958     DocDeclStrName(
 959         void,  SetOption(const wxString& name, int value),
 960         "Sets an image option as an integer.", "
 961
 962 :see: `HasOption`, `GetOption`, `GetOptionInt`, `SetOption`",
 963         SetOptionInt);
 964
 965     DocDeclStr(
 966         wxString , GetOption(const wxString& name) const,
 967         "Gets the value of an image handler option.", "
 968
 969 :see: `HasOption`, `GetOptionInt`, `SetOption`, `SetOptionInt`");
 970
 971     DocDeclStr(
 972         int , GetOptionInt(const wxString& name) const,
 973         "Gets the value of an image handler option as an integer.  If the given
 974 option is not present, the function returns 0.", "
 975
 976 :see: `HasOption`, `GetOption`, `SetOptionInt`, `SetOption`");
 977
 978     DocDeclStr(
 979         bool , HasOption(const wxString& name) const,
 980         "Returns true if the given option is present.", "
 981
 982 :see: `GetOption`, `GetOptionInt`, `SetOption`, `SetOptionInt`");
 983
 984
 985     unsigned long CountColours( unsigned long stopafter = (unsigned long) -1 );
 986     unsigned long ComputeHistogram( wxImageHistogram& h );
 987
 988     static void AddHandler( wxImageHandler *handler );
 989     static void InsertHandler( wxImageHandler *handler );
 990     static bool RemoveHandler( const wxString& name );
 991     %extend {
 992         static PyObject* GetHandlers() {
 993             wxList& list = wxImage::GetHandlers();
 994             return wxPy_ConvertList(&list);
 995         }
 996     }
 997
 998     DocDeclStr(
 999         static wxString , GetImageExtWildcard(),
1000         "Iterates all registered wxImageHandler objects, and returns a string
1001 containing file extension masks suitable for passing to file open/save
1002 dialog boxes.", "");
1003
1004
1005
1006 MustHaveApp(ConvertToBitmap);
1007 MustHaveApp(ConvertToMonoBitmap);
1008
1009     %extend {
1010         wxBitmap ConvertToBitmap(int depth=-1) {
1011             wxBitmap bitmap(*self, depth);
1012             return bitmap;
1013         }
1014
1015         wxBitmap ConvertToMonoBitmap( byte red,
1016                                       byte green,
1017                                       byte blue ) {
1018             wxImage mono = self->ConvertToMono( red, green, blue );
1019             wxBitmap bitmap( mono, 1 );
1020             return bitmap;
1021         }
1022     }
1023
1024
1025     DocDeclStr(
1026         void , RotateHue(double angle),
1027         "Rotates the hue of each pixel of the image. Hue is a double in the
1028 range -1.0..1.0 where -1.0 is -360 degrees and 1.0 is 360 degrees", "");
1029
1030     DocDeclStr(
1031         static wxImage_HSVValue , RGBtoHSV(wxImage_RGBValue rgb),
1032         "Converts a color in RGB color space to HSV color space.", "");
1033
1034     DocDeclStr(
1035         static wxImage_RGBValue , HSVtoRGB(wxImage_HSVValue hsv),
1036         "Converts a color in HSV color space to RGB color space.", "");
1037
1038
1039     %pythoncode { def __nonzero__(self): return self.IsOk() }
1040
1041     %property(AlphaBuffer, GetAlphaBuffer, SetAlphaBuffer, doc="See `GetAlphaBuffer` and `SetAlphaBuffer`");
1042     %property(AlphaData, GetAlphaData, SetAlphaData, doc="See `GetAlphaData` and `SetAlphaData`");
1043     %property(Data, GetData, SetData, doc="See `GetData` and `SetData`");
1044     %property(DataBuffer, GetDataBuffer, SetDataBuffer, doc="See `GetDataBuffer` and `SetDataBuffer`");
1045     %property(Height, GetHeight, doc="See `GetHeight`");
1046     %property(MaskBlue, GetMaskBlue, doc="See `GetMaskBlue`");
1047     %property(MaskGreen, GetMaskGreen, doc="See `GetMaskGreen`");
1048     %property(MaskRed, GetMaskRed, doc="See `GetMaskRed`");
1049     %property(Width, GetWidth, doc="See `GetWidth`");
1050
1051 };
1052
1053
1054
1055 // Make an image from buffer objects.  Not that this is here instead of in the
1056 // wxImage class (as a constructor) because there is already another one with
1057 // the exact same signature, so there woudl be ambiguities in the generated
1058 // C++.  Doing it as an independent factory function like this accomplishes
1059 // the same thing however.
1060 %newobject _ImageFromBuffer;
1061 %inline %{
1062     wxImage* _ImageFromBuffer(int width, int height,
1063                               buffer data, int DATASIZE,
1064                               buffer alpha=NULL, int ALPHASIZE=0)
1065     {
1066         if (DATASIZE != width*height*3) {
1067             wxPyErr_SetString(PyExc_ValueError, "Invalid data buffer size.");
1068             return NULL;
1069         }
1070         if (alpha != NULL) {
1071             if (ALPHASIZE != width*height) {
1072                 wxPyErr_SetString(PyExc_ValueError, "Invalid alpha buffer size.");
1073                 return NULL;
1074             }
1075             return new wxImage(width, height, data, alpha, true);
1076         }
1077         return new wxImage(width, height, data, true);
1078     }
1079 %}
1080
1081 %pythoncode {
1082 def ImageFromBuffer(width, height, dataBuffer, alphaBuffer=None):
1083     """
1084     Creates a `wx.Image` from the data in dataBuffer.  The dataBuffer
1085     parameter must be a Python object that implements the buffer interface,
1086     such as a string, array, etc.  The dataBuffer object is expected to
1087     contain a series of RGB bytes and be width*height*3 bytes long.  A buffer
1088     object can optionally be supplied for the image's alpha channel data, and
1089     it is expected to be width*height bytes long.
1090
1091     The wx.Image will be created with its data and alpha pointers initialized
1092     to the memory address pointed to by the buffer objects, thus saving the
1093     time needed to copy the image data from the buffer object to the wx.Image.
1094     While this has advantages, it also has the shoot-yourself-in-the-foot
1095     risks associated with sharing a C pointer between two objects.
1096
1097     To help alleviate the risk a reference to the data and alpha buffer
1098     objects are kept with the wx.Image, so that they won't get deleted until
1099     after the wx.Image is deleted.  However please be aware that it is not
1100     guaranteed that an object won't move its memory buffer to a new location
1101     when it needs to resize its contents.  If that happens then the wx.Image
1102     will end up referring to an invalid memory location and could cause the
1103     application to crash.  Therefore care should be taken to not manipulate
1104     the objects used for the data and alpha buffers in a way that would cause
1105     them to change size.
1106     """
1107     image = _core_._ImageFromBuffer(width, height, dataBuffer, alphaBuffer)
1108     image._buffer = dataBuffer
1109     image._alpha = alphaBuffer
1110     return image
1111 }
1112
1113
1114 ///void wxInitAllImageHandlers();
1115
1116 %pythoncode {
1117     def InitAllImageHandlers():
1118         """
1119         The former functionality of InitAllImageHanders is now done internal to
1120         the _core_ extension module and so this function has become a simple NOP.
1121         """
1122         pass
1123 }
1124
1125
1126
1127 %immutable;
1128 const wxImage    wxNullImage;
1129 %mutable;
1130
1131 //---------------------------------------------------------------------------
1132
1133 MAKE_CONST_WXSTRING(IMAGE_OPTION_FILENAME);
1134 MAKE_CONST_WXSTRING(IMAGE_OPTION_BMP_FORMAT);
1135 MAKE_CONST_WXSTRING(IMAGE_OPTION_CUR_HOTSPOT_X);
1136 MAKE_CONST_WXSTRING(IMAGE_OPTION_CUR_HOTSPOT_Y);
1137 MAKE_CONST_WXSTRING(IMAGE_OPTION_RESOLUTION);
1138 MAKE_CONST_WXSTRING(IMAGE_OPTION_RESOLUTIONX);
1139 MAKE_CONST_WXSTRING(IMAGE_OPTION_RESOLUTIONY);
1140 MAKE_CONST_WXSTRING(IMAGE_OPTION_RESOLUTIONUNIT);
1141 MAKE_CONST_WXSTRING(IMAGE_OPTION_QUALITY);
1142
1143 // constants used with wxIMAGE_OPTION_RESOLUTIONUNIT
1144 enum wxImageResolution
1145 {
1146     // Resolution not specified
1147     wxIMAGE_RESOLUTION_NONE = 0,
1148
1149     // Resolution specified in inches
1150     wxIMAGE_RESOLUTION_INCHES = 1,
1151
1152     // Resolution specified in centimeters
1153     wxIMAGE_RESOLUTION_CM = 2
1154 };
1155
1156
1157
1158 MAKE_CONST_WXSTRING(IMAGE_OPTION_BITSPERSAMPLE);
1159 MAKE_CONST_WXSTRING(IMAGE_OPTION_SAMPLESPERPIXEL);
1160 MAKE_CONST_WXSTRING(IMAGE_OPTION_COMPRESSION);
1161 MAKE_CONST_WXSTRING(IMAGE_OPTION_IMAGEDESCRIPTOR);
1162
1163 MAKE_CONST_WXSTRING(IMAGE_OPTION_PNG_FORMAT);
1164 MAKE_CONST_WXSTRING(IMAGE_OPTION_PNG_BITDEPTH);
1165
1166 enum
1167 {
1168     wxPNG_TYPE_COLOUR = 0,
1169     wxPNG_TYPE_GREY = 2,
1170     wxPNG_TYPE_GREY_RED = 3
1171 };
1172
1173 enum
1174 {
1175     wxBMP_24BPP        = 24, // default, do not need to set
1176     //wxBMP_16BPP      = 16, // wxQuantize can only do 236 colors?
1177     wxBMP_8BPP         =  8, // 8bpp, quantized colors
1178     wxBMP_8BPP_GREY    =  9, // 8bpp, rgb averaged to greys
1179     wxBMP_8BPP_GRAY    =  wxBMP_8BPP_GREY,
1180     wxBMP_8BPP_RED     = 10, // 8bpp, red used as greyscale
1181     wxBMP_8BPP_PALETTE = 11, // 8bpp, use the wxImage's palette
1182     wxBMP_4BPP         =  4, // 4bpp, quantized colors
1183     wxBMP_1BPP         =  1, // 1bpp, quantized "colors"
1184     wxBMP_1BPP_BW      =  2  // 1bpp, black & white from red
1185 };
1186
1187
1188 DocStr(wxBMPHandler,
1189 "A `wx.ImageHandler` for \*.bmp bitmap files.", "");
1190 class wxBMPHandler : public wxImageHandler {
1191 public:
1192     wxBMPHandler();
1193 };
1194
1195 DocStr(wxICOHandler,
1196 "A `wx.ImageHandler` for \*.ico icon files.", "");
1197 class wxICOHandler : public wxBMPHandler {
1198 public:
1199     wxICOHandler();
1200 };
1201
1202 DocStr(wxCURHandler,
1203 "A `wx.ImageHandler` for \*.cur cursor files.", "");
1204 class wxCURHandler : public wxICOHandler {
1205 public:
1206     wxCURHandler();
1207 };
1208
1209 DocStr(wxANIHandler,
1210 "A `wx.ImageHandler` for \*.ani animated cursor files.", "");
1211 class wxANIHandler : public wxCURHandler {
1212 public:
1213     wxANIHandler();
1214 };
1215
1216
1217 //---------------------------------------------------------------------------
1218
1219 DocStr(wxPNGHandler,
1220 "A `wx.ImageHandler` for PNG image files.", "");
1221 class wxPNGHandler : public wxImageHandler {
1222 public:
1223     wxPNGHandler();
1224 };
1225
1226
1227 DocStr(wxGIFHandler,
1228 "A `wx.ImageHandler` for GIF image files.", "");
1229 class wxGIFHandler : public wxImageHandler {
1230 public:
1231     wxGIFHandler();
1232 };
1233
1234
1235 DocStr(wxPCXHandler,
1236 "A `wx.ImageHandler` for PCX imager files.", "");
1237 class wxPCXHandler : public wxImageHandler {
1238 public:
1239     wxPCXHandler();
1240 };
1241
1242
1243 DocStr(wxJPEGHandler,
1244 "A `wx.ImageHandler` for JPEG/JPG image files.", "");
1245 class wxJPEGHandler : public wxImageHandler {
1246 public:
1247     wxJPEGHandler();
1248 };
1249
1250
1251 DocStr(wxPNMHandler,
1252 "A `wx.ImageHandler` for PNM image files.", "");
1253 class wxPNMHandler : public wxImageHandler {
1254 public:
1255     wxPNMHandler();
1256 };
1257
1258 DocStr(wxXPMHandler,
1259 "A `wx.ImageHandler` for XPM image.", "");
1260 class wxXPMHandler : public wxImageHandler {
1261 public:
1262     wxXPMHandler();
1263 };
1264
1265 DocStr(wxTIFFHandler,
1266 "A `wx.ImageHandler` for TIFF image files.", "");
1267 class wxTIFFHandler : public wxImageHandler {
1268 public:
1269     wxTIFFHandler();
1270 };
1271
1272
1273
1274 #if 0
1275 %{
1276 #include <wx/imagiff.h>
1277 %}
1278
1279 DocStr(wxIFFHandler,
1280 "A `wx.ImageHandler` for IFF image files.", "");
1281 class wxIFFHandler : public wxImageHandler {
1282 public:
1283     wxIFFHandler();
1284 };
1285 #endif
1286
1287
1288 %{
1289 #include <wx/imagtga.h>
1290 %}
1291
1292 DocStr(wxTGAHandler,
1293 "A `wx.ImageHandler` for TGA image files.", "");
1294 class wxTGAHandler : public wxImageHandler {
1295 public:
1296     wxTGAHandler();
1297 };
1298
1299
1300 //---------------------------------------------------------------------------
1301
1302 %{
1303 #include <wx/quantize.h>
1304 %}
1305
1306 enum {
1307     wxQUANTIZE_INCLUDE_WINDOWS_COLOURS,
1308 //    wxQUANTIZE_RETURN_8BIT_DATA,
1309     wxQUANTIZE_FILL_DESTINATION_IMAGE
1310 };
1311
1312
1313 DocStr(wxQuantize,
1314        "Performs quantization, or colour reduction, on a wxImage.", "");
1315
1316 class wxQuantize /*: public wxObject */
1317 {
1318 public:
1319
1320     %extend {
1321         DocStr(
1322             Quantize,
1323             "Reduce the colours in the source image and put the result into the
1324 destination image, setting the palette in the destination if
1325 needed. Both images may be the same, to overwrite the source image.", "
1326 :todo: Create a version that returns the wx.Palette used.");
1327
1328         static bool Quantize(const wxImage& src, wxImage& dest, int desiredNoColours = 236,
1329                              int flags = wxQUANTIZE_INCLUDE_WINDOWS_COLOURS|wxQUANTIZE_FILL_DESTINATION_IMAGE)
1330         {
1331                 return wxQuantize::Quantize(src, dest,
1332                                             //NULL, // palette
1333                                             desiredNoColours,
1334                                             NULL, // eightBitData
1335                                             flags);
1336         }
1337     }
1338 };
1339
1340
1341 //---------------------------------------------------------------------------