| 35 | ); |
| 36 | |
| 37 | void ProgressBarEx::UserControl_Loaded(winrt::Windows::Foundation::IInspectable const& sender, winrt::Microsoft::UI::Xaml::RoutedEventArgs const& e) |
| 38 | { |
| 39 | auto visual = winrt::Microsoft::UI::Xaml::Hosting::ElementCompositionPreview::GetElementVisual(Bar()); |
| 40 | auto compositor = visual.Compositor(); |
| 41 | m_propertySet = compositor.CreatePropertySet(); |
| 42 | m_propertySet.InsertScalar(L"width", 50); |
| 43 | |
| 44 | m_pointLight = compositor.CreatePointLight(); |
| 45 | m_pointLight.Color(winrt::Microsoft::UI::Colors::White()); |
| 46 | m_pointLight.CoordinateSpace(visual); |
| 47 | m_pointLight.Targets().Add(visual); |
| 48 | m_pointLight.Offset( |
| 49 | { |
| 50 | (float)-Bar().ActualWidth(), |
| 51 | (float)Bar().ActualHeight() / 2.0f, |
| 52 | (float)30 |
| 53 | }); |
| 54 | |
| 55 | m_animation = compositor.CreateScalarKeyFrameAnimation(); |
| 56 | //m_animation.InsertKeyFrame(1.0f, 2 * Bar().ActualWidth()); |
| 57 | m_animation.SetReferenceParameter(L"propertySet", m_propertySet); |
| 58 | m_animation.InsertExpressionKeyFrame(1.0f, L"propertySet.width"); |
| 59 | m_animation.Duration(std::chrono::seconds{ 3 }); |
| 60 | m_animation.IterationBehavior(winrt::Microsoft::UI::Composition::AnimationIterationBehavior::Forever); |
| 61 | m_animation.Target(L"Offset.X"); |
| 62 | |
| 63 | auto intensityAnimation = compositor.CreateScalarKeyFrameAnimation(); |
| 64 | intensityAnimation.Target(L"Intensity"); |
| 65 | intensityAnimation.Duration(std::chrono::seconds{ 3 }); |
| 66 | intensityAnimation.IterationBehavior(winrt::Microsoft::UI::Composition::AnimationIterationBehavior::Forever); |
| 67 | intensityAnimation.InsertKeyFrame(0.0, 0.0); |
| 68 | intensityAnimation.InsertKeyFrame(0.2, 1.0); |
| 69 | intensityAnimation.InsertKeyFrame(0.6, 1.0); |
| 70 | intensityAnimation.InsertKeyFrame(1.0, 0.0); |
| 71 | |
| 72 | |
| 73 | auto group = compositor.CreateAnimationGroup(); |
| 74 | group.Add(m_animation); |
| 75 | group.Add(intensityAnimation); |
| 76 | |
| 77 | //m_pointLight.StartAnimation(L"Offset.X", animation); |
| 78 | m_pointLight.StartAnimationGroup(group); |
| 79 | |
| 80 | m_ambientLight = compositor.CreateAmbientLight(); |
| 81 | m_ambientLight.Intensity(1.0); |
| 82 | m_ambientLight.Color(winrt::Microsoft::UI::Colors::White()); |
| 83 | m_ambientLight.Targets().Add(visual); |
| 84 | } |
| 85 | |
| 86 | void ProgressBarEx::Bar_SizeChanged(winrt::Windows::Foundation::IInspectable const&, winrt::Microsoft::UI::Xaml::SizeChangedEventArgs const&) |
| 87 | { |