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Add tests of wxImage::InitAlpha()

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This commit is contained in:
Artur Wieczorek
2021-02-06 00:43:18 +01:00
parent 46302896e1
commit 1adc38c42b
1 changed files with 139 additions and 1 deletions
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140
tests/image/image.cpp
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@@ -1966,10 +1966,148 @@ TEST_CASE("wxImage::Clipboard", "[image][clipboard]")
wxImage imgRetrieved = dobj2.GetImage();
REQUIRE(imgRetrieved.IsOk());
CompareImage(*wxImage::FindHandler(wxBITMAP_TYPE_PNG), imgRetrieved, 0, &imgOriginal);
CHECK_THAT(imgOriginal, RGBASameAs(imgRetrieved));
#endif // wxUSE_CLIPBOARD && wxUSE_DATAOBJ
}
#define CHECK_EQUAL_COLOUR_RGB(c1, c2) \
CHECK( (int)c1.Red() == (int)c2.Red() ); \
CHECK( (int)c1.Green() == (int)c2.Green() ); \
CHECK( (int)c1.Blue() == (int)c2.Blue() )
#define CHECK_EQUAL_COLOUR_RGBA(c1, c2) \
CHECK( (int)c1.Red() == (int)c2.Red() ); \
CHECK( (int)c1.Green() == (int)c2.Green() ); \
CHECK( (int)c1.Blue() == (int)c2.Blue() ); \
CHECK( (int)c1.Alpha() == (int)c2.Alpha() )
TEST_CASE("wxImage::InitAlpha", "[image][initalpha]")
{
const wxColour maskCol(*wxRED);
const wxColour fillCol(*wxGREEN);
SECTION("RGB image without mask")
{
wxImage img(2, 2);
img.SetRGB(0, 0, maskCol.Red(), maskCol.Green(), maskCol.Blue());
img.SetRGB(0, 1, maskCol.Red(), maskCol.Green(), maskCol.Blue());
img.SetRGB(1, 0, fillCol.Red(), fillCol.Green(), fillCol.Blue());
img.SetRGB(1, 1, fillCol.Red(), fillCol.Green(), fillCol.Blue());
REQUIRE_FALSE(img.HasAlpha());
REQUIRE_FALSE(img.HasMask());
wxImage imgRes = img;
imgRes.InitAlpha();
REQUIRE(imgRes.HasAlpha() == true);
REQUIRE_FALSE(imgRes.HasMask());
for (int y = 0; y < img.GetHeight(); y++)
for (int x = 0; x < img.GetWidth(); x++)
{
wxColour cSrc(img.GetRed(x, y), img.GetGreen(x, y), img.GetBlue(x, y));
wxColour cRes(imgRes.GetRed(x, y), imgRes.GetGreen(x, y), imgRes.GetBlue(x, y), imgRes.GetAlpha(x, y));
CHECK_EQUAL_COLOUR_RGB(cRes, cSrc);
CHECK((int)cRes.Alpha() == (int)wxIMAGE_ALPHA_OPAQUE);
}
}
SECTION("RGB image with mask")
{
wxImage img(2, 2);
img.SetRGB(0, 0, maskCol.Red(), maskCol.Green(), maskCol.Blue());
img.SetRGB(0, 1, maskCol.Red(), maskCol.Green(), maskCol.Blue());
img.SetRGB(1, 0, fillCol.Red(), fillCol.Green(), fillCol.Blue());
img.SetRGB(1, 1, fillCol.Red(), fillCol.Green(), fillCol.Blue());
img.SetMaskColour(maskCol.Red(), maskCol.Green(), maskCol.Blue());
REQUIRE_FALSE(img.HasAlpha());
REQUIRE(img.HasMask() == true);
wxImage imgRes = img;
imgRes.InitAlpha();
REQUIRE(imgRes.HasAlpha() == true);
REQUIRE_FALSE(imgRes.HasMask());
for ( int y = 0; y < img.GetHeight(); y++ )
for ( int x = 0; x < img.GetWidth(); x++ )
{
wxColour cSrc(img.GetRed(x, y), img.GetGreen(x, y), img.GetBlue(x, y));
wxColour cRes(imgRes.GetRed(x, y), imgRes.GetGreen(x, y), imgRes.GetBlue(x, y), imgRes.GetAlpha(x, y));
CHECK_EQUAL_COLOUR_RGB(cRes, cSrc);
if ( cRes == maskCol )
{
CHECK((int)cRes.Alpha() == (int)wxIMAGE_ALPHA_TRANSPARENT);
}
else
{
CHECK((int)cRes.Alpha() == (int)wxIMAGE_ALPHA_OPAQUE);
}
}
}
SECTION("RGBA image without mask")
{
wxImage img(2, 2);
img.SetRGB(0, 0, maskCol.Red(), maskCol.Green(), maskCol.Blue());
img.SetRGB(0, 1, maskCol.Red(), maskCol.Green(), maskCol.Blue());
img.SetRGB(1, 0, fillCol.Red(), fillCol.Green(), fillCol.Blue());
img.SetRGB(1, 1, fillCol.Red(), fillCol.Green(), fillCol.Blue());
img.SetAlpha();
img.SetAlpha(0, 0, 128);
img.SetAlpha(0, 1, 0);
img.SetAlpha(1, 0, 128);
img.SetAlpha(1, 1, 0);
REQUIRE(img.HasAlpha() == true);
REQUIRE_FALSE(img.HasMask());
wxImage imgRes = img;
CHECK_THROWS(imgRes.InitAlpha());
REQUIRE(imgRes.HasAlpha() == true);
REQUIRE_FALSE(imgRes.HasMask());
for ( int y = 0; y < img.GetHeight(); y++ )
for ( int x = 0; x < img.GetWidth(); x++ )
{
wxColour cSrc(img.GetRed(x, y), img.GetGreen(x, y), img.GetBlue(x, y), img.GetAlpha(x, y));
wxColour cRes(imgRes.GetRed(x, y), imgRes.GetGreen(x, y), imgRes.GetBlue(x, y), imgRes.GetAlpha(x, y));
CHECK_EQUAL_COLOUR_RGBA(cRes, cSrc);
}
}
SECTION("RGBA image with mask")
{
wxImage img(2, 2);
img.SetRGB(0, 0, maskCol.Red(), maskCol.Green(), maskCol.Blue());
img.SetRGB(0, 1, maskCol.Red(), maskCol.Green(), maskCol.Blue());
img.SetRGB(1, 0, fillCol.Red(), fillCol.Green(), fillCol.Blue());
img.SetRGB(1, 1, fillCol.Red(), fillCol.Green(), fillCol.Blue());
img.SetAlpha();
img.SetAlpha(0, 0, 128);
img.SetAlpha(0, 1, 0);
img.SetAlpha(1, 0, 128);
img.SetAlpha(1, 1, 0);
img.SetMaskColour(maskCol.Red(), maskCol.Green(), maskCol.Blue());
REQUIRE(img.HasAlpha() == true);
REQUIRE(img.HasMask() == true);
wxImage imgRes = img;
CHECK_THROWS(imgRes.InitAlpha());
REQUIRE(imgRes.HasAlpha() == true);
REQUIRE(imgRes.HasMask() == true);
for ( int y = 0; y < img.GetHeight(); y++ )
for ( int x = 0; x < img.GetWidth(); x++ )
{
wxColour cSrc(img.GetRed(x, y), img.GetGreen(x, y), img.GetBlue(x, y), img.GetAlpha(x, y));
wxColour cRes(imgRes.GetRed(x, y), imgRes.GetGreen(x, y), imgRes.GetBlue(x, y), imgRes.GetAlpha(x, y));
CHECK_EQUAL_COLOUR_RGBA(cRes, cSrc);
}
}
}
/*
TODO: add lots of more tests to wxImage functions
*/