Add widget state support.

test/ui_controls/CMakeLists.txt

@@ -0,0 +1,11 @@
+set(MODULE_NAME ui_controls)
+
+list(APPEND UNIT_TEST_FILES
+	TestButton.cpp
+)
+
+set(UNIT_TEST_TARGET_NAME ${MODULE_NAME}_unit_tests)
+
+add_executable(${UNIT_TEST_TARGET_NAME} ${CMAKE_SOURCE_DIR}/test/test_runner.cpp ${UNIT_TEST_FILES})
+target_link_libraries(${UNIT_TEST_TARGET_NAME} PUBLIC test_utils ui_controls)
+set_property(TARGET ${UNIT_TEST_TARGET_NAME} PROPERTY FOLDER test/${MODULE_NAME})

test/ui_controls/TestButton.cpp

@@ -0,0 +1,29 @@
+#include "TestFramework.h"
+#include "TestUtils.h"
+#include "TestRenderUtils.h"
+
+#include "ThemeManager.h"
+#include "PaintEvent.h"
+
+#include "Button.h"
+
+TEST_CASE(TestButton_Elevated, "ui_controls")
+{
+	auto theme_manager = std::make_unique<ThemeManager>();
+
+	auto paint_event = PaintEvent::Create(theme_manager.get(), nullptr);
+
+	Button button(ButtonData::Component::Elevated);
+	button.setLabel("Enabled");
+
+	button.onPaintEvent(paint_event.get());
+
+	auto node = button.getRootNode();
+
+	TestRenderer renderer;
+	renderer.getScene()->addNode(node);
+
+	renderer.writeSvg(TestUtils::getTestOutputDir(__FILE__) / "Elevated_Enabled.svg");
+	renderer.write(TestUtils::getTestOutputDir(__FILE__) / "Elevated_Enabled.png");
+
+};