+ unsigned char *data = GetData();
+
+ const int w = GetWidth();
+ const int h = GetHeight();
+
+ for (int j = 0; j < h; j++)
+ for (int i = 0; i < w; i++)
+ {
+ if ((data[0] == r1) && (data[1] == g1) && (data[2] == b1))
+ {
+ data[0] = r2;
+ data[1] = g2;
+ data[2] = b2;
+ }
+ data += 3;
+ }
+}
+
+wxImage wxImage::ConvertToGreyscale(void) const
+{
+ return ConvertToGreyscale(0.299, 0.587, 0.114);
+}
+
+wxImage wxImage::ConvertToGreyscale(double weight_r, double weight_g, double weight_b) const
+{
+ wxImage image;
+
+ wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+
+ image.Create(M_IMGDATA->m_width, M_IMGDATA->m_height, false);
+
+ unsigned char *dest = image.GetData();
+
+ wxCHECK_MSG( dest, image, wxT("unable to create image") );
+
+ unsigned char *src = M_IMGDATA->m_data;
+ bool hasMask = M_IMGDATA->m_hasMask;
+ unsigned char maskRed = M_IMGDATA->m_maskRed;
+ unsigned char maskGreen = M_IMGDATA->m_maskGreen;
+ unsigned char maskBlue = M_IMGDATA->m_maskBlue;
+
+ if ( hasMask )
+ image.SetMaskColour(maskRed, maskGreen, maskBlue);
+
+ const long size = M_IMGDATA->m_width * M_IMGDATA->m_height;
+ for ( long i = 0; i < size; i++, src += 3, dest += 3 )
+ {
+ memcpy(dest, src, 3);
+ // don't modify the mask
+ if ( hasMask && src[0] == maskRed && src[1] == maskGreen && src[2] == maskBlue )
+ {
+ }
+ else
+ {
+ wxColour::MakeGrey(dest + 0, dest + 1, dest + 2, weight_r, weight_g, weight_b);
+ }
+ }
+
+ // copy the alpha channel, if any
+ if (HasAlpha())
+ {
+ const size_t alphaSize = GetWidth() * GetHeight();
+ unsigned char *alpha = (unsigned char*)malloc(alphaSize);
+ memcpy(alpha, GetAlpha(), alphaSize);
+ image.InitAlpha();
+ image.SetAlpha(alpha);
+ }
+
+ return image;
+}
+
+wxImage wxImage::ConvertToMono( unsigned char r, unsigned char g, unsigned char b ) const
+{
+ wxImage image;
+
+ wxCHECK_MSG( Ok(), image, wxT("invalid image") );
+
+ image.Create( M_IMGDATA->m_width, M_IMGDATA->m_height, false );
+
+ unsigned char *data = image.GetData();
+
+ wxCHECK_MSG( data, image, wxT("unable to create image") );
+
+ if (M_IMGDATA->m_hasMask)
+ {
+ if (M_IMGDATA->m_maskRed == r && M_IMGDATA->m_maskGreen == g &&
+ M_IMGDATA->m_maskBlue == b)
+ image.SetMaskColour( 255, 255, 255 );
+ else
+ image.SetMaskColour( 0, 0, 0 );
+ }
+
+ long size = M_IMGDATA->m_height * M_IMGDATA->m_width;
+
+ unsigned char *srcd = M_IMGDATA->m_data;
+ unsigned char *tard = image.GetData();
+
+ for ( long i = 0; i < size; i++, srcd += 3, tard += 3 )
+ {
+ bool on = (srcd[0] == r) && (srcd[1] == g) && (srcd[2] == b);
+ wxColourBase::MakeMono(tard + 0, tard + 1, tard + 2, on);
+ }
+
+ return image;
+}
+
+wxImage wxImage::ConvertToDisabled(unsigned char brightness) const
+{
+ wxImage image = *this;
+
+ unsigned char mr = image.GetMaskRed();
+ unsigned char mg = image.GetMaskGreen();
+ unsigned char mb = image.GetMaskBlue();
+
+ int width = image.GetWidth();
+ int height = image.GetHeight();
+ bool has_mask = image.HasMask();
+
+ for (int y = height-1; y >= 0; --y)
+ {
+ for (int x = width-1; x >= 0; --x)
+ {
+ unsigned char* data = image.GetData() + (y*(width*3))+(x*3);
+ unsigned char* r = data;
+ unsigned char* g = data+1;
+ unsigned char* b = data+2;
+
+ if (has_mask && (*r == mr) && (*g == mg) && (*b == mb))
+ continue;
+
+ wxColour::MakeDisabled(r, g, b, brightness);
+ }
+ }
+ return image;
+}
+
+int wxImage::GetWidth() const
+{
+ wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+
+ return M_IMGDATA->m_width;
+}
+
+int wxImage::GetHeight() const
+{
+ wxCHECK_MSG( Ok(), 0, wxT("invalid image") );
+
+ return M_IMGDATA->m_height;
+}
+
+wxBitmapType wxImage::GetType() const
+{
+ wxCHECK_MSG( IsOk(), wxBITMAP_TYPE_INVALID, wxT("invalid image") );
projects / wxWidgets.git / blobdiff