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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: _bitmap.i
3 // Purpose: SWIG interface for wxBitmap and wxMask
4 //
5 // Author: Robin Dunn
6 //
7 // Created: 7-July-1997
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 #include <wx/rawbmp.h>
17 %}
18
19
20 // Turn off the aquisition of the Global Interpreter Lock for this file
21 %threadWrapperOff
22
23 //---------------------------------------------------------------------------
24
25 %{
26 #include <wx/image.h>
27
28 static char** ConvertListOfStrings(PyObject* listOfStrings) {
29 char** cArray = NULL;
30 int count;
31
32 if (!PyList_Check(listOfStrings)) {
33 PyErr_SetString(PyExc_TypeError, "Expected a list of strings.");
34 return NULL;
35 }
36 count = PyList_Size(listOfStrings);
37 cArray = new char*[count];
38
39 for(int x=0; x<count; x++) {
40 // TODO: Need some validation and error checking here
41 cArray[x] = PyString_AsString(PyList_GET_ITEM(listOfStrings, x));
42 }
43 return cArray;
44 }
45
46 %}
47
48 //---------------------------------------------------------------------------
49
50 // TODO: When the API stabalizes and is available on other platforms, add
51 // wrappers for the new wxBitmap, wxRawBitmap, wxDIB stuff...
52
53 DocStr(wxBitmap,
54 "The wx.Bitmap class encapsulates the concept of a platform-dependent
55 bitmap. It can be either monochrome or colour, and either loaded from
56 a file or created dynamically. A bitmap can be selected into a memory
57 device context (instance of `wx.MemoryDC`). This enables the bitmap to
58 be copied to a window or memory device context using `wx.DC.Blit`, or
59 to be used as a drawing surface.", "
60
61 The BMP and XMP image file formats are supported on all platforms by
62 wx.Bitmap. Other formats are automatically loaded by `wx.Image` and
63 converted to a wx.Bitmap, so any image file format supported by
64 `wx.Image` can be used.
65
66 :todo: Add wrappers and support for raw bitmap data access. Can this
67 be be put into Python without losing the speed benefits of the
68 teplates and iterators in rawbmp.h?
69
70 :todo: Find a way to do very efficient PIL Image <--> wx.Bitmap
71 converstions.
72
73 :see: `wx.EmptyBitmap`, `wx.BitmapFromIcon`, `wx.BitmapFromImage`,
74 `wx.BitmapFromXPMData`, `wx.BitmapFromBits`, `wx.BitmapFromBuffer`,
75 `wx.BitmapFromBufferRGBA`, `wx.Image`
76 ");
77
78
79 MustHaveApp(wxBitmap);
80
81 class wxBitmap : public wxGDIObject
82 {
83 public:
84 DocCtorStr(
85 wxBitmap(const wxString& name, wxBitmapType type=wxBITMAP_TYPE_ANY),
86 "Loads a bitmap from a file.",
87 "
88 :param name: Name of the file to load the bitmap from.
89 :param type: The type of image to expect. Can be one of the following
90 constants (assuming that the neccessary `wx.Image` handlers are
91 loaded):
92
93 * wx.BITMAP_TYPE_ANY
94 * wx.BITMAP_TYPE_BMP
95 * wx.BITMAP_TYPE_ICO
96 * wx.BITMAP_TYPE_CUR
97 * wx.BITMAP_TYPE_XBM
98 * wx.BITMAP_TYPE_XPM
99 * wx.BITMAP_TYPE_TIF
100 * wx.BITMAP_TYPE_GIF
101 * wx.BITMAP_TYPE_PNG
102 * wx.BITMAP_TYPE_JPEG
103 * wx.BITMAP_TYPE_PNM
104 * wx.BITMAP_TYPE_PCX
105 * wx.BITMAP_TYPE_PICT
106 * wx.BITMAP_TYPE_ICON
107 * wx.BITMAP_TYPE_ANI
108 * wx.BITMAP_TYPE_IFF
109
110 :see: Alternate constructors `wx.EmptyBitmap`, `wx.BitmapFromIcon`,
111 `wx.BitmapFromImage`, `wx.BitmapFromXPMData`,
112 `wx.BitmapFromBits`
113 ");
114
115 ~wxBitmap();
116
117 DocCtorStrName(
118 wxBitmap(int width, int height, int depth=-1),
119 "Creates a new bitmap of the given size. A depth of -1 indicates the
120 depth of the current screen or visual. Some platforms only support 1
121 for monochrome and -1 for the current display depth.", "",
122 EmptyBitmap);
123
124 DocCtorStrName(
125 wxBitmap(const wxIcon& icon),
126 "Create a new bitmap from a `wx.Icon` object.", "",
127 BitmapFromIcon);
128
129 DocCtorStrName(
130 wxBitmap(const wxImage& image, int depth=-1),
131 "Creates bitmap object from a `wx.Image`. This has to be done to
132 actually display a `wx.Image` as you cannot draw an image directly on
133 a window. The resulting bitmap will use the provided colour depth (or
134 that of the current screen colour depth if depth is -1) which entails
135 that a colour reduction may have to take place.", "",
136 BitmapFromImage);
137
138
139 %extend {
140 %RenameDocCtor(
141 BitmapFromXPMData,
142 "Construct a Bitmap from a list of strings formatted as XPM data.", "",
143 wxBitmap(PyObject* listOfStrings))
144 {
145 char** cArray = NULL;
146 wxBitmap* bmp;
147
148 cArray = ConvertListOfStrings(listOfStrings);
149 if (! cArray)
150 return NULL;
151 bmp = new wxBitmap(cArray);
152 delete [] cArray;
153 return bmp;
154 }
155
156
157 %RenameDocCtor(
158 BitmapFromBits,
159 "Creates a bitmap from an array of bits. You should only use this
160 function for monochrome bitmaps (depth 1) in portable programs: in
161 this case the bits parameter should contain an XBM image. For other
162 bit depths, the behaviour is platform dependent.", "",
163 wxBitmap(PyObject* bits, int width, int height, int depth=1 ))
164 {
165 char* buf;
166 Py_ssize_t length;
167 PyString_AsStringAndSize(bits, &buf, &length);
168 return new wxBitmap(buf, width, height, depth);
169 }
170 }
171
172
173 // wxGDIImage methods
174 #ifdef __WXMSW__
175 long GetHandle();
176 %extend {
177 void SetHandle(long handle) { self->SetHandle((WXHANDLE)handle); }
178 }
179 #endif
180
181 bool Ok();
182
183 DocDeclStr(
184 int , GetWidth(),
185 "Gets the width of the bitmap in pixels.", "");
186
187
188 DocDeclStr(
189 int , GetHeight(),
190 "Gets the height of the bitmap in pixels.", "");
191
192
193 DocDeclStr(
194 int , GetDepth(),
195 "Gets the colour depth of the bitmap. A value of 1 indicates a
196 monochrome bitmap.", "");
197
198
199
200 %extend {
201 DocStr(GetSize, "Get the size of the bitmap.", "");
202 wxSize GetSize() {
203 wxSize size(self->GetWidth(), self->GetHeight());
204 return size;
205 }
206 }
207
208
209 DocDeclStr(
210 virtual wxImage , ConvertToImage() const,
211 "Creates a platform-independent image from a platform-dependent
212 bitmap. This preserves mask information so that bitmaps and images can
213 be converted back and forth without loss in that respect.", "");
214
215
216
217 DocDeclStr(
218 virtual wxMask* , GetMask() const,
219 "Gets the associated mask (if any) which may have been loaded from a
220 file or explpicitly set for the bitmap.
221
222 :see: `SetMask`, `wx.Mask`
223 ", "");
224
225 // MSW only? wxBitmap GetMaskBitmap() const;
226
227 %disownarg(wxMask*);
228 DocDeclStr(
229 virtual void , SetMask(wxMask* mask),
230 "Sets the mask for this bitmap.
231
232 :see: `GetMask`, `wx.Mask`
233 ", "");
234 %cleardisown(wxMask*);
235
236 %extend {
237 DocStr(SetMaskColour,
238 "Create a Mask based on a specified colour in the Bitmap.", "");
239 void SetMaskColour(const wxColour& colour) {
240 wxMask *mask = new wxMask(*self, colour);
241 self->SetMask(mask);
242 }
243 }
244
245
246 DocDeclStr(
247 virtual wxBitmap , GetSubBitmap(const wxRect& rect) const,
248 "Returns a sub-bitmap of the current one as long as the rect belongs
249 entirely to the bitmap. This function preserves bit depth and mask
250 information.", "");
251
252
253 DocDeclStr(
254 virtual bool , SaveFile(const wxString &name, wxBitmapType type,
255 wxPalette *palette = NULL),
256 "Saves a bitmap in the named file. See `__init__` for a description of
257 the ``type`` parameter.", "");
258
259
260 DocDeclStr(
261 virtual bool , LoadFile(const wxString &name, wxBitmapType type),
262 "Loads a bitmap from a file. See `__init__` for a description of the
263 ``type`` parameter.", "");
264
265
266
267 virtual wxPalette *GetPalette() const;
268 #ifdef __WXMSW__
269 virtual void SetPalette(const wxPalette& palette);
270 #endif
271
272
273 virtual bool CopyFromIcon(const wxIcon& icon);
274
275 DocDeclStr(
276 virtual void , SetHeight(int height),
277 "Set the height property (does not affect the existing bitmap data).", "");
278
279
280 DocDeclStr(
281 virtual void , SetWidth(int width),
282 "Set the width property (does not affect the existing bitmap data).", "");
283
284
285 DocDeclStr(
286 virtual void , SetDepth(int depth),
287 "Set the depth property (does not affect the existing bitmap data).", "");
288
289
290 %extend {
291 DocStr(SetSize, "Set the bitmap size (does not affect the existing bitmap data).", "");
292 void SetSize(const wxSize& size) {
293 self->SetWidth(size.x);
294 self->SetHeight(size.y);
295 }
296 }
297
298 #ifdef __WXMSW__
299 bool CopyFromCursor(const wxCursor& cursor);
300
301 // WXWIN_COMPATIBILITY_2_4
302 #if 0
303 int GetQuality();
304 void SetQuality(int q);
305 %pythoncode { GetQuality = wx._deprecated(GetQuality) }
306 %pythoncode { SetQuality = wx._deprecated(SetQuality) }
307 #endif
308 #endif
309
310 %pythoncode { def __nonzero__(self): return self.Ok() }
311
312 %extend {
313 bool __eq__(const wxBitmap* other) { return other ? (*self == *other) : false; }
314 bool __ne__(const wxBitmap* other) { return other ? (*self != *other) : true; }
315 }
316 };
317
318
319 //---------------------------------------------------------------------------
320 // Factory functions for creating wxBitmaps from Python buffer objects. They
321 // use the Abstract Pixel API to be able to set RGB and A bytes directly into
322 // the wxBitmap's pixel buffer.
323
324 %{
325 // See http://tinyurl.com/e5adr for what premultiplying alpha means. It
326 // appears to me that the other platforms are already doing it, so I'll just
327 // automatically do it for wxMSW here.
328 #ifdef __WXMSW__
329 #define wxPy_premultiply(p, a) ((p) * (a) / 256)
330 #define wxPy_unpremultiply(p, a) ((a) ? ((p) * 256 / (a)) : (p))
331 #else
332 #define wxPy_premultiply(p, a) (p)
333 #define wxPy_unpremultiply(p, a) (p)
334 #endif
335 %}
336
337
338 %newobject _BitmapFromBufferAlpha;
339 %newobject _BitmapFromBuffer;
340 %inline %{
341 wxBitmap* _BitmapFromBufferAlpha(int width, int height,
342 buffer data, int DATASIZE,
343 buffer alpha, int ALPHASIZE)
344 {
345 if (DATASIZE != width*height*3) {
346 wxPyErr_SetString(PyExc_ValueError, "Invalid data buffer size.");
347 return NULL;
348 }
349
350 if (ALPHASIZE != width*height) {
351 wxPyErr_SetString(PyExc_ValueError, "Invalid alpha buffer size.");
352 return NULL;
353 }
354
355 wxBitmap* bmp = new wxBitmap(width, height, 32);
356 wxAlphaPixelData pixData(*bmp, wxPoint(0,0), wxSize(width,height));
357 if (! pixData) {
358 // raise an exception...
359 wxPyErr_SetString(PyExc_RuntimeError,
360 "Failed to gain raw access to bitmap data.");
361 return NULL;
362 }
363
364 pixData.UseAlpha();
365 wxAlphaPixelData::Iterator p(pixData);
366 for (int y=0; y<height; y++) {
367 wxAlphaPixelData::Iterator rowStart = p;
368 for (int x=0; x<width; x++) {
369 byte a = *(alpha++);
370 p.Red() = wxPy_premultiply(*(data++), a);
371 p.Green() = wxPy_premultiply(*(data++), a);
372 p.Blue() = wxPy_premultiply(*(data++), a);
373 p.Alpha() = a;
374 ++p;
375 }
376 p = rowStart;
377 p.OffsetY(pixData, 1);
378 }
379 return bmp;
380 }
381
382 wxBitmap* _BitmapFromBuffer(int width, int height, buffer data, int DATASIZE)
383 {
384 if (DATASIZE != width*height*3) {
385 wxPyErr_SetString(PyExc_ValueError, "Invalid data buffer size.");
386 return NULL;
387 }
388
389 wxBitmap* bmp = new wxBitmap(width, height, 24);
390 wxNativePixelData pixData(*bmp, wxPoint(0,0), wxSize(width,height));
391 if (! pixData) {
392 // raise an exception...
393 wxPyErr_SetString(PyExc_RuntimeError,
394 "Failed to gain raw access to bitmap data.");
395 return NULL;
396 }
397
398 wxNativePixelData::Iterator p(pixData);
399 for (int y=0; y<height; y++) {
400 wxNativePixelData::Iterator rowStart = p;
401 for (int x=0; x<width; x++) {
402 p.Red() = *(data++);
403 p.Green() = *(data++);
404 p.Blue() = *(data++);
405 ++p;
406 }
407 p = rowStart;
408 p.OffsetY(pixData, 1);
409 }
410 return bmp;
411 }
412 %}
413
414
415 %pythoncode {
416 def BitmapFromBuffer(width, height, dataBuffer, alphaBuffer=None):
417 """
418 Creates a `wx.Bitmap` from the data in dataBuffer. The dataBuffer
419 parameter must be a Python object that implements the buffer interface, or
420 is convertable to a buffer object, such as a string, array, etc. The
421 dataBuffer object is expected to contain a series of RGB bytes and be
422 width*height*3 bytes long. A buffer object can optionally be supplied for
423 the image's alpha channel data, and it is expected to be width*height
424 bytes long. On Windows the RGB values are 'premultiplied' by the alpha
425 values. (The other platforms appear to already be premultiplying the
426 alpha.)
427
428 Unlike `wx.ImageFromBuffer` the bitmap created with this function does not
429 share the memory buffer with the buffer object. This is because the
430 native pixel buffer format varies on different platforms, and so instead
431 an efficient as possible copy of the data is made from the buffer objects
432 to the bitmap's native pixel buffer. For direct access to a bitmap's
433 pixel buffer see `wx.NativePixelData` and `wx.AlphaPixelData`.
434
435 :see: `wx.Bitmap`, `wx.BitmapFromBufferRGBA`, `wx.NativePixelData`,
436 `wx.AlphaPixelData`, `wx.ImageFromBuffer`
437 """
438 if not isinstance(dataBuffer, buffer):
439 dataBuffer = buffer(dataBuffer)
440 if alphaBuffer is not None and not isinstance(alphaBuffer, buffer):
441 alphaBuffer = buffer(alphaBuffer)
442 if alphaBuffer is not None:
443 return _gdi_._BitmapFromBufferAlpha(width, height, dataBuffer, alphaBuffer)
444 else:
445 return _gdi_._BitmapFromBuffer(width, height, dataBuffer)
446 }
447
448
449
450 %newobject _BitmapFromBufferRGBA;
451 %inline %{
452 wxBitmap* _BitmapFromBufferRGBA(int width, int height, buffer data, int DATASIZE)
453 {
454 if (DATASIZE != width*height*4) {
455 wxPyErr_SetString(PyExc_ValueError, "Invalid data buffer size.");
456 return NULL;
457 }
458
459 wxBitmap* bmp = new wxBitmap(width, height, 32);
460 wxAlphaPixelData pixData(*bmp, wxPoint(0,0), wxSize(width,height));
461 if (! pixData) {
462 // raise an exception...
463 wxPyErr_SetString(PyExc_RuntimeError,
464 "Failed to gain raw access to bitmap data.");
465 return NULL;
466 }
467
468 pixData.UseAlpha();
469 wxAlphaPixelData::Iterator p(pixData);
470 for (int y=0; y<height; y++) {
471 wxAlphaPixelData::Iterator rowStart = p;
472 for (int x=0; x<width; x++) {
473 byte a = data[3];
474 p.Red() = wxPy_premultiply(*(data++), a);
475 p.Green() = wxPy_premultiply(*(data++), a);
476 p.Blue() = wxPy_premultiply(*(data++), a);
477 p.Alpha() = a; data++;
478 ++p;
479 }
480 p = rowStart;
481 p.OffsetY(pixData, 1);
482 }
483 return bmp;
484 }
485 %}
486
487 %pythoncode {
488 def BitmapFromBufferRGBA(width, height, dataBuffer):
489 """
490 Creates a `wx.Bitmap` from the data in dataBuffer. The dataBuffer
491 parameter must be a Python object that implements the buffer interface, or
492 is convertable to a buffer object, such as a string, array, etc. The
493 dataBuffer object is expected to contain a series of RGBA bytes (red,
494 green, blue and alpha) and be width*height*4 bytes long. On Windows the
495 RGB values are 'premultiplied' by the alpha values. (The other platforms
496 appear to already be premultiplying the alpha.)
497
498 Unlike `wx.ImageFromBuffer` the bitmap created with this function does not
499 share the memory buffer with the buffer object. This is because the
500 native pixel buffer format varies on different platforms, and so instead
501 an efficient as possible copy of the data is made from the buffer object
502 to the bitmap's native pixel buffer. For direct access to a bitmap's
503 pixel buffer see `wx.NativePixelData` and `wx.AlphaPixelData`.
504
505 :see: `wx.Bitmap`, `wx.BitmapFromBuffer`, `wx.NativePixelData`,
506 `wx.AlphaPixelData`, `wx.ImageFromBuffer`
507 """
508 if not isinstance(dataBuffer, buffer):
509 dataBuffer = buffer(dataBuffer)
510 return _gdi_._BitmapFromBufferRGBA(width, height, dataBuffer)
511 }
512
513
514 //---------------------------------------------------------------------------
515
516 class wxPixelDataBase
517 {
518 public:
519 // origin of the rectangular region we represent
520 wxPoint GetOrigin() const { return m_ptOrigin; }
521
522 // width and height of the region we represent
523 int GetWidth() const { return m_width; }
524 int GetHeight() const { return m_height; }
525
526 wxSize GetSize() const { return wxSize(m_width, m_height); }
527
528 // the distance between two rows
529 int GetRowStride() const { return m_stride; }
530
531 };
532
533
534 // Both wxNativePixelData and wxAlphaPixelData have the same interface, so
535 // make a macro to declare them both.
536
537 %define PIXELDATA(PixelData)
538 %{
539 typedef PixelData##::Iterator PixelData##_Accessor;
540 %}
541 class PixelData##_Accessor;
542 class PixelData : public wxPixelDataBase
543 {
544 public:
545 %nokwargs PixelData;
546
547 PixelData(wxBitmap& bmp);
548 PixelData(wxBitmap& bmp, const wxRect& rect);
549 PixelData(wxBitmap& bmp, const wxPoint& pt, const wxSize& sz);
550
551 ~PixelData();
552
553 PixelData##_Accessor GetPixels() const;
554 void UseAlpha();
555
556 %extend {
557 bool __nonzero__() { return self->operator bool(); }
558 }
559
560 %pythoncode {
561 def __iter__(self):
562 """Create and return an iterator object for this pixel data object."""
563 return self.PixelIterator(self)
564
565 class PixelIterator(object):
566 """
567 Sequential iterator which returns pixel accessor objects starting at the
568 the top-left corner, and going row-by-row until the bottom-right
569 corner is reached.
570 """
571
572 class PixelAccessor(object):
573 """
574 This class is what is returned by the iterator and allows the pixel
575 to be Get or Set.
576 """
577 def __init__(self, data, pixels, x, y):
578 self.data = data
579 self.pixels = pixels
580 self.x = x
581 self.y = y
582 def Set(self, *args, **kw):
583 self.pixels.MoveTo(self.data, self.x, self.y)
584 return self.pixels.Set(*args, **kw)
585 def Get(self):
586 self.pixels.MoveTo(self.data, self.x, self.y)
587 return self.pixels.Get()
588
589 def __init__(self, pixelData):
590 self.x = self.y = 0
591 self.w = pixelData.GetWidth()
592 self.h = pixelData.GetHeight()
593 self.data = pixelData
594 self.pixels = pixelData.GetPixels()
595
596 def __iter__(self):
597 return self
598
599 def next(self):
600 if self.y >= self.h:
601 raise StopIteration
602 p = self.PixelAccessor(self.data, self.pixels, self.x, self.y)
603 self.x += 1
604 if self.x >= self.w:
605 self.x = 0
606 self.y += 1
607 return p
608 }
609 };
610
611
612
613 class PixelData##_Accessor
614 {
615 public:
616 %nokwargs PixelData##_Accessor;
617
618 PixelData##_Accessor(PixelData& data);
619 PixelData##_Accessor(wxBitmap& bmp, PixelData& data);
620 PixelData##_Accessor();
621
622 ~PixelData##_Accessor();
623
624 void Reset(const PixelData& data);
625 bool IsOk() const;
626
627 %extend {
628 // PixelData##_Accessor& nextPixel() { return ++(*self); }
629 void nextPixel() { ++(*self); }
630 }
631
632 void Offset(const PixelData& data, int x, int y);
633 void OffsetX(const PixelData& data, int x);
634 void OffsetY(const PixelData& data, int y);
635 void MoveTo(const PixelData& data, int x, int y);
636
637 // NOTE: For now I'm not wrapping the Red, Green, Blue and Alpha functions
638 // because I can't hide the premultiplying needed on wxMSW if only the
639 // individual components are wrapped. Instead I've added the Set and Get
640 // functions and put the puemultiplying in there.
641
642 // %extend {
643 // byte _get_Red() { return self->Red(); }
644 // byte _get_Green() { return self->Green(); }
645 // byte _get_Blue() { return self->Blue(); }
646
647 // void _set_Red(byte val) { self->Red() = val; }
648 // void _set_Green(byte val) { self->Green() = val; }
649 // void _set_Blue(byte val) { self->Blue() = val; }
650 // }
651
652 // %pythoncode {
653 // Red = property(_get_Red, _set_Red)
654 // Green = property(_get_Green, _set_Green)
655 // Blue = property(_get_Blue, _set_Blue)
656 // }
657 };
658 %enddef
659
660
661 %pythonAppend wxAlphaPixelData::wxAlphaPixelData "self.UseAlpha()"
662
663 // Make the classes
664 PIXELDATA(wxNativePixelData)
665 PIXELDATA(wxAlphaPixelData)
666
667
668 // Add in a few things that are different between the wxNativePixelData and
669 // wxAlphaPixelData and the iterator classes and so are not included in our
670 // macro...
671
672 %extend wxNativePixelData_Accessor {
673 void Set(byte red, byte green, byte blue) {
674 self->Red() = red;
675 self->Green() = green;
676 self->Blue() = blue;
677 }
678
679 PyObject* Get() {
680 PyObject* rv = PyTuple_New(3);
681 PyTuple_SetItem(rv, 0, PyInt_FromLong(self->Red()));
682 PyTuple_SetItem(rv, 1, PyInt_FromLong(self->Green()));
683 PyTuple_SetItem(rv, 2, PyInt_FromLong(self->Blue()));
684 return rv;
685 }
686 }
687
688 %extend wxAlphaPixelData_Accessor {
689 // byte _get_Alpha() { return self->Alpha(); }
690 // void _set_Alpha(byte val) { self->Alpha() = val; }
691
692 // %pythoncode {
693 // Alpha = property(_get_Alpha, _set_Alpha)
694 // }
695
696 void Set(byte red, byte green, byte blue, byte alpha) {
697 self->Red() = wxPy_premultiply(red, alpha);
698 self->Green() = wxPy_premultiply(green, alpha);
699 self->Blue() = wxPy_premultiply(blue, alpha);
700 self->Alpha() = alpha;
701 }
702
703 PyObject* Get() {
704 PyObject* rv = PyTuple_New(4);
705 int red = self->Red();
706 int green = self->Green();
707 int blue = self->Blue();
708 int alpha = self->Alpha();
709
710 PyTuple_SetItem(rv, 0, PyInt_FromLong( wxPy_unpremultiply(red, alpha) ));
711 PyTuple_SetItem(rv, 1, PyInt_FromLong( wxPy_unpremultiply(green, alpha) ));
712 PyTuple_SetItem(rv, 2, PyInt_FromLong( wxPy_unpremultiply(blue, alpha) ));
713 PyTuple_SetItem(rv, 3, PyInt_FromLong( alpha ));
714 return rv;
715 }
716 }
717
718
719 //---------------------------------------------------------------------------
720
721 DocStr(wxMask,
722 "This class encapsulates a monochrome mask bitmap, where the masked
723 area is black and the unmasked area is white. When associated with a
724 bitmap and drawn in a device context, the unmasked area of the bitmap
725 will be drawn, and the masked area will not be drawn.
726
727 A mask may be associated with a `wx.Bitmap`. It is used in
728 `wx.DC.DrawBitmap` or `wx.DC.Blit` when the source device context is a
729 `wx.MemoryDC` with a `wx.Bitmap` selected into it that contains a
730 mask.", "");
731
732 MustHaveApp(wxMask);
733
734 class wxMask : public wxObject {
735 public:
736
737 DocStr(wxMask,
738 "Constructs a mask from a `wx.Bitmap` and a `wx.Colour` in that bitmap
739 that indicates the transparent portions of the mask. In other words,
740 the pixels in ``bitmap`` that match ``colour`` will be the transparent
741 portions of the mask. If no ``colour`` or an invalid ``colour`` is
742 passed then BLACK is used.
743
744 :see: `wx.Bitmap`, `wx.Colour`", "");
745
746 %extend {
747 wxMask(const wxBitmap& bitmap, const wxColour& colour = wxNullColour) {
748 if ( !colour.Ok() )
749 return new wxMask(bitmap, *wxBLACK);
750 else
751 return new wxMask(bitmap, colour);
752 }
753 }
754
755 ~wxMask();
756 };
757
758 %pythoncode { MaskColour = wx._deprecated(Mask, "wx.MaskColour is deprecated, use `wx.Mask` instead.") }
759
760 //---------------------------------------------------------------------------
761 //---------------------------------------------------------------------------
762 %threadWrapperOn