XElement FromCompositionGeometricClip(CompositionGeometricClip obj)
{
return(new XElement(GetCompositionObjectName(obj), GetContents()));
IEnumerable <XObject> GetContents()
{
if (obj.Geometry != null)
{
yield return(new XElement("Geometry", FromCompositionObject(obj.Geometry)));
}
}
}
CompositionGeometricClip GetCompositionGeometricClip(CompositionGeometricClip obj)
{
if (GetExisting(obj, out CompositionGeometricClip result))
{
return(result);
}
result = CacheAndInitializeCompositionObject(obj, _c.CreateCompositionGeometricClip());
result.Geometry = GetCompositionGeometry(obj.Geometry);
return(result);
}
public MessagePinnedLine()
{
RegisterPropertyChangedCallback(BorderBrushProperty, OnBorderBrushChanged);
var compositor = Window.Current.Compositor;
var visual = compositor.CreateShapeVisual();
visual.Size = new Vector2(2, 36);
var back = compositor.CreateRectangleGeometry();
back.Offset = Vector2.Zero;
back.Size = new Vector2(4, 36);
var backShape = compositor.CreateSpriteShape(back);
backShape.FillBrush = GetBrush(BorderBrushProperty);
var fore = compositor.CreateRectangleGeometry();
fore.Offset = Vector2.Zero;
fore.Size = new Vector2(4, 36);
//fore.CornerRadius = Vector2.One;
var foreShape = compositor.CreateSpriteShape(fore);
foreShape.FillBrush = GetBrush(ForegroundProperty);
var mask = compositor.CreatePathGeometry(GetMask(1));
var maskShape = compositor.CreateGeometricClip(mask);
visual.Shapes.Add(backShape);
visual.Shapes.Add(foreShape);
visual.Clip = maskShape;
_back = backShape;
_fore = foreShape;
_forePath = fore;
_mask = maskShape;
_maskPath = mask;
ElementCompositionPreview.SetElementChildVisual(this, visual);
}
private void Page_Loaded(object sender, RoutedEventArgs e)
{
// create the compositor
_compositor = ElementCompositionPreview.GetElementVisual(this).Compositor;
// create what captures the pointer position
_hoverPositionPropertySet = ElementCompositionPreview.GetPointerPositionPropertySet(r2);
// create the two visuals
_vis = _compositor.CreateSpriteVisual();
_pulseVis = _compositor.CreateSpriteVisual();
// create the main brush with warm colors
_mainBrush = _compositor.CreateRadialGradientBrush();
_mainBrush.EllipseCenter = new Vector2(.5f, .5f);
_mainBrush.EllipseRadius = new Vector2(.5f, .5f);
_MBGradientStop1 = _compositor.CreateColorGradientStop();
_MBGradientStop1.Offset = 0;
_MBGradientStop1.Color = _warmColor1;
_MBGradientStop2 = _compositor.CreateColorGradientStop();
_MBGradientStop2.Offset = .1f;
_MBGradientStop2.Color = _warmColor2;
_MBGradientStop3 = _compositor.CreateColorGradientStop();
_MBGradientStop3.Offset = 1;
_MBGradientStop3.Color = _warmColor3;
_mainBrush.ColorStops.Add(_MBGradientStop1);
_mainBrush.ColorStops.Add(_MBGradientStop2);
_mainBrush.ColorStops.Add(_MBGradientStop3);
// create the brush for the pulse visual
_pulseBrush = _compositor.CreateRadialGradientBrush();
_pulseBrush.EllipseCenter = new Vector2(.5f, .5f);
_pulseBrush.EllipseRadius = new Vector2(.5f, .5f);
_PBGradientStop1 = _compositor.CreateColorGradientStop();
_PBGradientStop1.Offset = 0;
_PBGradientStop1.Color = _innerPulseColor;
_PBGradientStop2 = _compositor.CreateColorGradientStop();
_PBGradientStop2.Offset = 1;
_PBGradientStop2.Color = _innerPulseColor;
_pulseBrush.ColorStops.Add(_PBGradientStop1);
_pulseBrush.ColorStops.Add(_PBGradientStop2);
// finish setting properties of the first visual
_vis.Size = new Vector2(300, 300);
_vis.Offset = new Vector3(((float)r2.ActualWidth / 2), ((float)r2.ActualHeight / 2), 0);
_vis.AnchorPoint = new Vector2(.5f, .5f);
_vis.Brush = _mainBrush;
// finish setting properties of the pulsing visual
_pulseVis.Size = new Vector2(500, 500);
_pulseVis.Offset = new Vector3(((float)r1.ActualWidth / 2), ((float)r1.ActualHeight / 2), 0);
_pulseVis.AnchorPoint = new Vector2(.5f, .5f);
_pulseVis.Brush = _pulseBrush;
// create the clip that makes the visuals circular
CompositionGeometricClip gClip = _compositor.CreateGeometricClip();
CompositionEllipseGeometry circle = _compositor.CreateEllipseGeometry();
circle.Radius = new Vector2(_vis.Size.X / 2, _vis.Size.Y / 2);
circle.Center = new Vector2(_vis.Size.X / 2, _vis.Size.Y / 2);
gClip.Geometry = circle;
_vis.Clip = gClip;
CompositionGeometricClip gClip2 = _compositor.CreateGeometricClip();
CompositionEllipseGeometry circle2 = _compositor.CreateEllipseGeometry();
circle2.Radius = new Vector2(_pulseVis.Size.X / 2, _pulseVis.Size.Y / 2);
circle2.Center = new Vector2(_pulseVis.Size.X / 2, _pulseVis.Size.Y / 2);
gClip2.Geometry = circle2;
_pulseVis.Clip = gClip2;
// set the pointer
my_pointer = new Vector3(((float)r1.ActualWidth / 2), ((float)r1.ActualHeight / 2), 0);
// set the visuals in the tree
ElementCompositionPreview.SetElementChildVisual(r2, _vis);
ElementCompositionPreview.SetElementChildVisual(r1, _pulseVis);
// ellipse center follows mouse
_ellipseCenterAnim = _compositor.CreateExpressionAnimation("Vector2(p.Position.X / 500.0f, p.Position.Y / 500.0f)");
_ellipseCenterAnim.SetReferenceParameter("p", _hoverPositionPropertySet);
_mainBrush.StartAnimation("EllipseCenter", _ellipseCenterAnim);
// second stop is animated for "pulsing" effect within the first visual that runs constantly
_offsetAnim = _compositor.CreateScalarKeyFrameAnimation();
_offsetAnim.InsertKeyFrame(0, 0);
_offsetAnim.InsertKeyFrame(1f, 1f);
_offsetAnim.Duration = TimeSpan.FromSeconds(2);
_offsetAnim.IterationCount = 50;
_MBGradientStop2.StartAnimation("Offset", _offsetAnim);
// set up the animation for the backing pulse visual
// animate the color
_pulseColorAnim = _compositor.CreateColorKeyFrameAnimation();
_pulseColorAnim.InsertKeyFrame(0, _innerPulseColor);
_pulseColorAnim.InsertKeyFrame(.99f, _outerPulseColor);
_pulseColorAnim.InsertKeyFrame(1, _innerPulseColor);
_pulseColorAnim.Duration = TimeSpan.FromSeconds(1);
_pulseColorAnim.IterationBehavior = AnimationIterationBehavior.Forever;
_PBGradientStop1.StartAnimation("Color", _pulseColorAnim);
// animate offset of first stop
_pulseStop1OffsetAnim = _compositor.CreateScalarKeyFrameAnimation();
_pulseStop1OffsetAnim.InsertKeyFrame(0, 0);
_pulseStop1OffsetAnim.InsertKeyFrame(1f, 1f);
_pulseStop1OffsetAnim.Duration = TimeSpan.FromSeconds(1);
_pulseStop1OffsetAnim.IterationBehavior = AnimationIterationBehavior.Forever;
_PBGradientStop1.StartAnimation("Offset", _pulseStop1OffsetAnim);
// animate offset of second stop
_pulseStop2OffsetAnim = _compositor.CreateScalarKeyFrameAnimation();
_pulseStop2OffsetAnim.InsertKeyFrame(0, 0);
_pulseStop2OffsetAnim.InsertKeyFrame(1f, 1f);
_pulseStop2OffsetAnim.Duration = TimeSpan.FromSeconds(1);
_pulseStop2OffsetAnim.IterationBehavior = AnimationIterationBehavior.Forever;
_pulseStop2OffsetAnim.DelayTime = TimeSpan.FromSeconds(.25f);
_PBGradientStop2.StartAnimation("Offset", _pulseStop2OffsetAnim);
_pulseScaleAnim = _compositor.CreateVector3KeyFrameAnimation();
_pulseScaleAnim.InsertKeyFrame(0, Vector3.Zero);
_pulseScaleAnim.InsertKeyFrame(1, Vector3.One);
_pulseScaleAnim.Duration = TimeSpan.FromSeconds(1);
_pulseScaleAnim.IterationBehavior = AnimationIterationBehavior.Forever;
_pulseVis.StartAnimation("Scale", _pulseScaleAnim);
}