#include <wx/rawbmp.h>
%}
+
+// Turn off the aquisition of the Global Interpreter Lock for this file
+%threadWrapperOff
+
//---------------------------------------------------------------------------
%{
// automatically do it for wxMSW here.
#ifdef __WXMSW__
#define wxPy_premultiply(p, a) ((p) * (a) / 256)
+#define wxPy_unpremultiply(p, a) ((a) ? ((p) * 256 / (a)) : (p))
#else
#define wxPy_premultiply(p, a) (p)
+#define wxPy_unpremultiply(p, a) (p)
#endif
%}
}
wxBitmap* bmp = new wxBitmap(width, height, 32);
- wxAlphaPixelData pixels(*bmp, wxPoint(0,0), wxSize(width,height));
- if (! pixels) {
+ wxAlphaPixelData pixData(*bmp, wxPoint(0,0), wxSize(width,height));
+ if (! pixData) {
// raise an exception...
wxPyErr_SetString(PyExc_RuntimeError,
"Failed to gain raw access to bitmap data.");
return NULL;
}
- pixels.UseAlpha();
- wxAlphaPixelData::Iterator p(pixels);
+ pixData.UseAlpha();
+ wxAlphaPixelData::Iterator p(pixData);
for (int y=0; y<height; y++) {
wxAlphaPixelData::Iterator rowStart = p;
for (int x=0; x<width; x++) {
++p;
}
p = rowStart;
- p.OffsetY(pixels, 1);
+ p.OffsetY(pixData, 1);
}
return bmp;
}
}
wxBitmap* bmp = new wxBitmap(width, height, 24);
- wxNativePixelData pixels(*bmp, wxPoint(0,0), wxSize(width,height));
- if (! pixels) {
+ wxNativePixelData pixData(*bmp, wxPoint(0,0), wxSize(width,height));
+ if (! pixData) {
// raise an exception...
wxPyErr_SetString(PyExc_RuntimeError,
"Failed to gain raw access to bitmap data.");
return NULL;
}
- wxNativePixelData::Iterator p(pixels);
+ wxNativePixelData::Iterator p(pixData);
for (int y=0; y<height; y++) {
wxNativePixelData::Iterator rowStart = p;
for (int x=0; x<width; x++) {
++p;
}
p = rowStart;
- p.OffsetY(pixels, 1);
+ p.OffsetY(pixData, 1);
}
return bmp;
}
%newobject _BitmapFromBufferRGBA;
%inline %{
- wxBitmap* _BitmapFromBufferRGBA(int width, int height, buffer data, int DATASIZE)
+ wxBitmap* _BitmapFromBufferRGBA(int width, int height, buffer data, int DATASIZE)
{
if (DATASIZE != width*height*4) {
wxPyErr_SetString(PyExc_ValueError, "Invalid data buffer size.");
}
wxBitmap* bmp = new wxBitmap(width, height, 32);
- wxAlphaPixelData pixels(*bmp, wxPoint(0,0), wxSize(width,height));
- if (! pixels) {
+ wxAlphaPixelData pixData(*bmp, wxPoint(0,0), wxSize(width,height));
+ if (! pixData) {
// raise an exception...
wxPyErr_SetString(PyExc_RuntimeError,
"Failed to gain raw access to bitmap data.");
return NULL;
}
-
- pixels.UseAlpha();
- wxAlphaPixelData::Iterator p(pixels);
+
+ pixData.UseAlpha();
+ wxAlphaPixelData::Iterator p(pixData);
for (int y=0; y<height; y++) {
wxAlphaPixelData::Iterator rowStart = p;
for (int x=0; x<width; x++) {
++p;
}
p = rowStart;
- p.OffsetY(pixels, 1);
+ p.OffsetY(pixData, 1);
}
return bmp;
}
}
+//---------------------------------------------------------------------------
+
+class wxPixelDataBase
+{
+public:
+ // origin of the rectangular region we represent
+ wxPoint GetOrigin() const { return m_ptOrigin; }
+
+ // width and height of the region we represent
+ int GetWidth() const { return m_width; }
+ int GetHeight() const { return m_height; }
+
+ wxSize GetSize() const { return wxSize(m_width, m_height); }
+
+ // the distance between two rows
+ int GetRowStride() const { return m_stride; }
+
+};
+
+
+// Both wxNativePixelData and wxAlphaPixelData have the same interface, so
+// make a macro to declare them both.
+
+%define PIXELDATA(PixelData)
+%{
+ typedef PixelData##::Iterator PixelData##_Accessor;
+%}
+class PixelData##_Accessor;
+class PixelData : public wxPixelDataBase
+{
+public:
+ %nokwargs PixelData;
+
+ PixelData(wxBitmap& bmp);
+ PixelData(wxBitmap& bmp, const wxRect& rect);
+ PixelData(wxBitmap& bmp, const wxPoint& pt, const wxSize& sz);
+
+ ~PixelData();
+
+ PixelData##_Accessor GetPixels() const;
+ void UseAlpha();
+
+ %extend {
+ bool __nonzero__() { return self->operator bool(); }
+ }
+
+ %pythoncode {
+ def __iter__(self):
+ """Create and return an iterator object for this pixel data object."""
+ return self.PixelIterator(self)
+
+ class PixelIterator(object):
+ """
+ Sequential iterator which returns pixel accessor objects starting at the
+ the top-left corner, and going row-by-row until the bottom-right
+ corner is reached.
+ """
+
+ class PixelAccessor(object):
+ """
+ This class is what is returned by the iterator and allows the pixel
+ to be Get or Set.
+ """
+ def __init__(self, data, pixels, x, y):
+ self.data = data
+ self.pixels = pixels
+ self.x = x
+ self.y = y
+ def Set(self, *args, **kw):
+ self.pixels.MoveTo(self.data, self.x, self.y)
+ return self.pixels.Set(*args, **kw)
+ def Get(self):
+ self.pixels.MoveTo(self.data, self.x, self.y)
+ return self.pixels.Get()
+
+ def __init__(self, pixelData):
+ self.x = self.y = 0
+ self.w = pixelData.GetWidth()
+ self.h = pixelData.GetHeight()
+ self.data = pixelData
+ self.pixels = pixelData.GetPixels()
+
+ def __iter__(self):
+ return self
+
+ def next(self):
+ if self.y >= self.h:
+ raise StopIteration
+ p = self.PixelAccessor(self.data, self.pixels, self.x, self.y)
+ self.x += 1
+ if self.x >= self.w:
+ self.x = 0
+ self.y += 1
+ return p
+ }
+};
+
+
+
+class PixelData##_Accessor
+{
+public:
+ %nokwargs PixelData##_Accessor;
+
+ PixelData##_Accessor(PixelData& data);
+ PixelData##_Accessor(wxBitmap& bmp, PixelData& data);
+ PixelData##_Accessor();
+
+ ~PixelData##_Accessor();
+
+ void Reset(const PixelData& data);
+ bool IsOk() const;
+
+ %extend {
+ // PixelData##_Accessor& nextPixel() { return ++(*self); }
+ void nextPixel() { ++(*self); }
+ }
+
+ void Offset(const PixelData& data, int x, int y);
+ void OffsetX(const PixelData& data, int x);
+ void OffsetY(const PixelData& data, int y);
+ void MoveTo(const PixelData& data, int x, int y);
+
+// NOTE: For now I'm not wrapping the Red, Green, Blue and Alpha functions
+// because I can't hide the premultiplying needed on wxMSW if only the
+// individual components are wrapped. Instead I've added the Set and Get
+// functions and put the puemultiplying in there.
+
+// %extend {
+// byte _get_Red() { return self->Red(); }
+// byte _get_Green() { return self->Green(); }
+// byte _get_Blue() { return self->Blue(); }
+
+// void _set_Red(byte val) { self->Red() = val; }
+// void _set_Green(byte val) { self->Green() = val; }
+// void _set_Blue(byte val) { self->Blue() = val; }
+// }
+
+// %pythoncode {
+// Red = property(_get_Red, _set_Red)
+// Green = property(_get_Green, _set_Green)
+// Blue = property(_get_Blue, _set_Blue)
+// }
+};
+%enddef
+
+
+%pythonAppend wxAlphaPixelData::wxAlphaPixelData "self.UseAlpha()"
+
+// Make the classes
+PIXELDATA(wxNativePixelData)
+PIXELDATA(wxAlphaPixelData)
+
+
+// Add in a few things that are different between the wxNativePixelData and
+// wxAlphaPixelData and the iterator classes and so are not included in our
+// macro...
+
+%extend wxNativePixelData_Accessor {
+ void Set(byte red, byte green, byte blue) {
+ self->Red() = red;
+ self->Green() = green;
+ self->Blue() = blue;
+ }
+
+ PyObject* Get() {
+ PyObject* rv = PyTuple_New(3);
+ PyTuple_SetItem(rv, 0, PyInt_FromLong(self->Red()));
+ PyTuple_SetItem(rv, 1, PyInt_FromLong(self->Green()));
+ PyTuple_SetItem(rv, 2, PyInt_FromLong(self->Blue()));
+ return rv;
+ }
+}
+
+%extend wxAlphaPixelData_Accessor {
+// byte _get_Alpha() { return self->Alpha(); }
+// void _set_Alpha(byte val) { self->Alpha() = val; }
+
+// %pythoncode {
+// Alpha = property(_get_Alpha, _set_Alpha)
+// }
+
+ void Set(byte red, byte green, byte blue, byte alpha) {
+ self->Red() = wxPy_premultiply(red, alpha);
+ self->Green() = wxPy_premultiply(green, alpha);
+ self->Blue() = wxPy_premultiply(blue, alpha);
+ self->Alpha() = alpha;
+ }
+
+ PyObject* Get() {
+ PyObject* rv = PyTuple_New(4);
+ int red = self->Red();
+ int green = self->Green();
+ int blue = self->Blue();
+ int alpha = self->Alpha();
+
+ PyTuple_SetItem(rv, 0, PyInt_FromLong( wxPy_unpremultiply(red, alpha) ));
+ PyTuple_SetItem(rv, 1, PyInt_FromLong( wxPy_unpremultiply(green, alpha) ));
+ PyTuple_SetItem(rv, 2, PyInt_FromLong( wxPy_unpremultiply(blue, alpha) ));
+ PyTuple_SetItem(rv, 3, PyInt_FromLong( alpha ));
+ return rv;
+ }
+}
+
+
//---------------------------------------------------------------------------
DocStr(wxMask,
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
+%threadWrapperOn
projects / wxWidgets.git / blobdiff