本文整理汇总了C++中wxImage::SetMask方法的典型用法代码示例。如果您正苦于以下问题：C++ wxImage::SetMask方法的具体用法？C++ wxImage::SetMask怎么用？C++ wxImage::SetMask使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类wxImage的用法示例。
在下文中一共展示了wxImage::SetMask方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: convertToVanillaImage
void zen::convertToVanillaImage(wxImage& img)
{
if (!img.HasAlpha())
{
const int width = img.GetWidth ();
const int height = img.GetHeight();
if (width <= 0 || height <= 0) return;
unsigned char mask_r = 0;
unsigned char mask_g = 0;
unsigned char mask_b = 0;
const bool haveMask = img.HasMask() && img.GetOrFindMaskColour(&mask_r, &mask_g, &mask_b);
//check for mask before calling wxImage::GetOrFindMaskColour() to skip needlessly searching for new mask color
img.SetAlpha();
::memset(img.GetAlpha(), wxIMAGE_ALPHA_OPAQUE, width * height);
//wxWidgets, as always, tries to be more clever than it really is and fucks up wxStaticBitmap if wxBitmap is fully opaque:
img.GetAlpha()[width * height - 1] = 254;
if (haveMask)
{
img.SetMask(false);
unsigned char* alphaPtr = img.GetAlpha();
const unsigned char* dataPtr = img.GetData();
const int pixelCount = width * height;
for (int i = 0; i < pixelCount; ++ i)
{
const unsigned char r = *dataPtr++;
const unsigned char g = *dataPtr++;
const unsigned char b = *dataPtr++;
if (r == mask_r &&
g == mask_g &&
b == mask_b)
alphaPtr[i] = wxIMAGE_ALPHA_TRANSPARENT;
}
}
}
else
{
assert(!img.HasMask());
}
}