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Added unit test for image sizing, in particular maintaining aspect ratio
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‎Tests/Source/UnitTests/ElementImage.cpp

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@@ -106,3 +106,83 @@ TEST_CASE("elementimage.dp_ratio")
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document->Close();
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TestsShell::ShutdownShell();
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}
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static const String document_wrapped_image_rml_ratio_test = R"(
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<rml>
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<head>
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<title>Test</title>
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<style>
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.width-50 { width: 50px; }
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.height-50 { height: 50px; }
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.height-100 { height: 100px; }
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</style>
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</head>
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<body>
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<img src="/test_not_loaded/test_512_256.tga" id="test1" alt="Original size" />
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<img src="/test_not_loaded/test_512_256.tga" id="test2" height="50" alt="Set height to 50, width auto, attribute set" />
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<img src="/test_not_loaded/test_512_256.tga" id="test3" class="height-50" alt="Set height to 50, width auto, css set" />
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<img src="/test_not_loaded/test_512_256.tga" id="test4" width="50" alt="Set width to 50, height auto, attribute set" />
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<img src="/test_not_loaded/test_512_256.tga" id="test5" class="width-50" alt="Set width to 50, height auto, css set" />
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<img src="/test_not_loaded/test_512_256.tga" id="test6" width="50" height="100" alt="Set width to 50 and height to 100, attribute set" />
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<img src="/test_not_loaded/test_512_256.tga" id="test7" class="height-100 width-50" alt="Set width to 50 and height to 100, css set" />
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</body>
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</rml>
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)";
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TEST_CASE("elementimage.preserve_ratio")
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{
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Context* context = TestsShell::GetContext();
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ElementDocument* document = context->LoadDocumentFromMemory(document_wrapped_image_rml_ratio_test, "assets/");
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document->Show();
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//Texture size is hardcoded in test render interface to 512x256
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SUBCASE("baseline")
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{
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Element* img_test1 = document->GetElementById("test1");
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CHECK(img_test1->GetClientWidth() == 512);
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CHECK(img_test1->GetClientHeight() == 256);
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}
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SUBCASE("height only - attribute set")
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{
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Element* img_test2 = document->GetElementById("test2");
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CHECK(img_test2->GetClientWidth() == 100);
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CHECK(img_test2->GetClientHeight() == 50);
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}
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SUBCASE("height only - css set")
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{
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Element* img_test3 = document->GetElementById("test3");
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CHECK(img_test3->GetClientWidth() == 100);
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CHECK(img_test3->GetClientHeight() == 50);
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}
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SUBCASE("width only - attribute set")
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{
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Element* img_test4 = document->GetElementById("test4");
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CHECK(img_test4->GetClientWidth() == 50);
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CHECK(img_test4->GetClientHeight() == 25);
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}
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SUBCASE("width only - attribute set")
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{
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Element* img_test5 = document->GetElementById("test5");
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CHECK(img_test5->GetClientWidth() == 50);
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CHECK(img_test5->GetClientHeight() == 25);
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}
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SUBCASE("height and width - attribute set")
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{
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Element* img_test6 = document->GetElementById("test6");
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CHECK(img_test6->GetClientWidth() == 50);
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CHECK(img_test6->GetClientHeight() == 100);
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}
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SUBCASE("height and width - css set")
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{
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Element* img_test7 = document->GetElementById("test7");
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CHECK(img_test7->GetClientWidth() == 50);
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CHECK(img_test7->GetClientHeight() == 100);
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}
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TestsShell::RenderLoop();
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document->Close();
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TestsShell::ShutdownShell();
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}

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