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Fix adding image using bitmap and mask colour to nonmasked wxImageList (wxMSW)

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If image using bitmap and mask colour is added to nonmasked wxImageList we
need to convert effective mask to alpha channel values prior to adding the
image to the native list to preserve transparency.
This commit is contained in:
Artur Wieczorek
2021-01-16 22:19:14 +01:00
parent b1cf40868d
commit bde82aa9fb
2 changed files with 36 additions and 19 deletions
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32
tests/graphics/imagelist.cpp
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@@ -100,6 +100,14 @@ TEST_CASE("ImageList:WithMask", "[imagelist][withmask]")
CHECK(bmp2.GetMask() != NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
idx = il.Add(bmpRGB, *wxRED);
CHECK(il.GetImageCount() == 3);
wxBitmap bmp3 = il.GetBitmap(idx);
CHECK(bmp3.HasAlpha() == false);
CHECK(bmp3.GetMask() != NULL);
CHECK(bmp3.GetWidth() == 32);
CHECK(bmp3.GetHeight() == 32);
}
SECTION("Add RGBA image to list")
@@ -120,6 +128,14 @@ TEST_CASE("ImageList:WithMask", "[imagelist][withmask]")
CHECK(bmp2.GetMask() != NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
idx = il.Add(bmpRGBA, *wxRED);
CHECK(il.GetImageCount() == 3);
wxBitmap bmp3 = il.GetBitmap(idx);
CHECK(bmp3.HasAlpha() == false);
CHECK(bmp3.GetMask() != NULL);
CHECK(bmp3.GetWidth() == 32);
CHECK(bmp3.GetHeight() == 32);
}
SECTION("Add icon to list")
@@ -257,6 +273,14 @@ TEST_CASE("ImageList:NoMask", "[imagelist][nomask]")
CHECK(bmp2.GetMask() == NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
idx = il.Add(bmpRGB, *wxRED);
CHECK(il.GetImageCount() == 3);
wxBitmap bmp3 = il.GetBitmap(idx);
CHECK(bmp3.HasAlpha() == true);
CHECK(bmp3.GetMask() == NULL);
CHECK(bmp3.GetWidth() == 32);
CHECK(bmp3.GetHeight() == 32);
}
SECTION("Add RGBA image to list")
@@ -277,6 +301,14 @@ TEST_CASE("ImageList:NoMask", "[imagelist][nomask]")
CHECK(bmp2.GetMask() == NULL);
CHECK(bmp2.GetWidth() == 32);
CHECK(bmp2.GetHeight() == 32);
idx = il.Add(bmpRGBA, *wxRED);
CHECK(il.GetImageCount() == 3);
wxBitmap bmp3 = il.GetBitmap(idx);
CHECK(bmp3.HasAlpha() == true);
CHECK(bmp3.GetMask() == NULL);
CHECK(bmp3.GetWidth() == 32);
CHECK(bmp3.GetHeight() == 32);
}
SECTION("Add icon to list")