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+/*
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+ * This source file is part of RmlUi, the HTML/CSS Interface Middleware
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+ *
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+ * For the latest information, see http://github.com/mikke89/RmlUi
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+ *
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+ * Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
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+ * Copyright (c) 2019 The RmlUi Team, and contributors
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy
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+ * of this software and associated documentation files (the "Software"), to deal
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+ * in the Software without restriction, including without limitation the rights
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+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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+ * copies of the Software, and to permit persons to whom the Software is
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+ * furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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+ * THE SOFTWARE.
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+ *
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+ */
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+
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+#include "../Common/TestsShell.h"
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+#include <RmlUi/Core/Context.h>
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+#include <RmlUi/Core/Element.h>
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+#include <RmlUi/Core/ElementDocument.h>
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+#include <doctest.h>
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+
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+using namespace Rml;
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+
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+static const String document_wrapped_image_rml = R"(
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+<rml>
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+<head>
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+ <title>Test</title>
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+ <link type="text/rcss" href="/assets/rml.rcss"/>
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+ <style>
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+ body {
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+ left: 0;
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+ top: 0;
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+ right: 0;
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+ bottom: 0;
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+ }
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+ </style>
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+</head>
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+
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+<body>
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+<div>
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+ <img src="/assets/high_scores_alien_1.tga"/>
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+</div>
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+</body>
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+</rml>
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+)";
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+
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+TEST_CASE("elementimage.dp_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, "assets/");
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+
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+ Element* div = document->GetChild(0);
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+ Element* img = div->GetChild(0);
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+
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+ document->Show();
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+ const float img_width = img->GetClientWidth();
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+
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+ SUBCASE("basic")
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+ {
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+ context->SetDensityIndependentPixelRatio(2.0f);
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+ context->Update();
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+ CHECK(img->GetClientWidth() == 2.f * img_width);
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+ }
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+
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+ SUBCASE("clone")
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+ {
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+ context->SetDensityIndependentPixelRatio(2.0f);
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+ auto clone_ptr = div->Clone();
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+
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+ context->SetDensityIndependentPixelRatio(4.f);
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+ Element* clone_div = document->AppendChild(std::move(clone_ptr));
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+ Element* clone_img = clone_div->GetChild(0);
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+ context->Update();
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+
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+ CHECK(clone_img->GetClientWidth() == 4.f * img_width);
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+ }
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+
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+ SUBCASE("create_image")
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+ {
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+ context->SetDensityIndependentPixelRatio(2.0f);
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+ ElementPtr new_img_ptr = document->CreateElement("img");
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+ new_img_ptr->SetAttribute("src", "high_scores_alien_1.tga");
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+
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+ context->SetDensityIndependentPixelRatio(4.0f);
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+ Element* new_img = document->AppendChild(std::move(new_img_ptr));
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+ context->Update();
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+
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+ CHECK(new_img->GetClientWidth() == 4.f * img_width);
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+ }
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+
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+ TestsShell::RenderLoop();
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+
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+ document->Close();
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+ TestsShell::ShutdownShell();
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+}
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Michael Ragazzon