329 lines
14 KiB
C#
329 lines
14 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using System.Windows;
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using System.Windows.Interop;
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using System.Windows.Media;
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using System.Windows.Media.Animation;
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using Point = System.Windows.Point;
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namespace DM_Weight.util.TabTip
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{
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internal static class AnimationHelper
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{
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private static readonly Dictionary<FrameworkElement, Storyboard> MoveRootVisualStoryboards = new Dictionary<FrameworkElement, Storyboard>();
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private static Point GetCurrentUIElementPoint(Visual element) => element.PointToScreen(new Point(0, 0)).ToPointInLogicalUnits(element);
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internal static event Action<Exception> ExceptionCatched;
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private static Rectangle ToRectangleInLogicalUnits(this Rectangle rectangleToConvert, DependencyObject element)
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{
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const float logicalUnitDpi = 96.0f;
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// ReSharper disable once AssignNullToNotNullAttribute
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IntPtr windowHandle = new WindowInteropHelper(Window.GetWindow(element)).EnsureHandle();
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using (Graphics graphics = Graphics.FromHwnd(windowHandle))
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return Rectangle.FromLTRB(
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left: (int) (rectangleToConvert.Left * logicalUnitDpi / graphics.DpiX),
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top: (int) (rectangleToConvert.Top * logicalUnitDpi / graphics.DpiY),
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right: (int) (rectangleToConvert.Right * logicalUnitDpi / graphics.DpiX),
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bottom: (int) (rectangleToConvert.Bottom * logicalUnitDpi / graphics.DpiY));
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}
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private static Point ToPointInLogicalUnits(this Point point, DependencyObject element)
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{
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const float logicalUnitDpi = 96.0f;
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// ReSharper disable once AssignNullToNotNullAttribute
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IntPtr windowHandle = new WindowInteropHelper(Window.GetWindow(element)).EnsureHandle();
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using (Graphics graphics = Graphics.FromHwnd(windowHandle))
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return new Point(x: point.X * logicalUnitDpi / graphics.DpiX, y: point.Y * logicalUnitDpi / graphics.DpiY);
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}
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// ReSharper disable once UnusedMember.Local
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private static Point GetCurrentUIElementPointRelativeToRoot(UIElement element)
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{
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return element.TransformToAncestor(GetRootVisualForAnimation(element)).Transform(new Point(0, 0));
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}
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private static Rectangle GetUIElementRect(UIElement element)
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{
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Rect rect = element.RenderTransform.TransformBounds(new Rect(GetCurrentUIElementPoint(element), element.RenderSize));
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return Rectangle.FromLTRB(
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left: (int)rect.Left,
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top: (int)rect.Top,
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right: (int)rect.Right,
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bottom: (int)rect.Bottom);
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}
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private static Rectangle GetCurrentScreenBounds(DependencyObject element) =>
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new Screen(Window.GetWindow(element)).Bounds.ToRectangleInLogicalUnits(element);
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private static Rectangle GetWorkAreaWithTabTipOpened(DependencyObject element)
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{
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Rectangle workAreaWithTabTipClosed = GetWorkAreaWithTabTipClosed(element);
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int tabTipRectangleTop = TabTip.GetWouldBeTabTipRectangle().ToRectangleInLogicalUnits(element).Top;
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int bottom = (tabTipRectangleTop == 0) ? workAreaWithTabTipClosed.Bottom / 2 : tabTipRectangleTop; // in case TabTip is not yet opened
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return Rectangle.FromLTRB(
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left: workAreaWithTabTipClosed.Left,
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top: workAreaWithTabTipClosed.Top,
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right: workAreaWithTabTipClosed.Right,
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bottom: bottom);
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}
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private static Rectangle GetWorkAreaWithTabTipClosed(DependencyObject element)
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{
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Rectangle currentScreenBounds = GetCurrentScreenBounds(element);
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Taskbar taskbar = new Taskbar();
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Rectangle taskbarBounds = taskbar.Bounds.ToRectangleInLogicalUnits(element);
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switch (taskbar.Position)
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{
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case TaskbarPosition.Bottom:
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return Rectangle.FromLTRB(
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left: currentScreenBounds.Left,
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top: currentScreenBounds.Top,
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right: currentScreenBounds.Right,
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bottom: taskbarBounds.Top);
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case TaskbarPosition.Top:
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return Rectangle.FromLTRB(
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left: currentScreenBounds.Left,
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top: taskbarBounds.Bottom,
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right: currentScreenBounds.Right,
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bottom: currentScreenBounds.Bottom);
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default:
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return currentScreenBounds;
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}
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}
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// ReSharper disable once UnusedMember.Local
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private static bool IsUIElementInWorkAreaWithTabTipOpened(UIElement element)
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{
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return GetWorkAreaWithTabTipOpened(element).Contains(GetUIElementRect(element));
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}
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// ReSharper disable once UnusedMember.Local
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private static bool IsUIElementInWorkArea(UIElement element, Rectangle workAreaRectangle)
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{
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return workAreaRectangle.Contains(GetUIElementRect(element));
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}
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private static FrameworkElement GetRootVisualForAnimation(DependencyObject element)
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{
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Window rootWindow = Window.GetWindow(element);
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if (rootWindow?.WindowState != WindowState.Maximized)
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return rootWindow;
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else
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return VisualTreeHelper.GetChild(rootWindow, 0) as FrameworkElement;
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}
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private static double GetYOffsetToMoveUIElementInToWorkArea(Rectangle uiElementRectangle, Rectangle workAreaRectangle)
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{
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const double noOffset = 0;
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const int paddingTop = 30;
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const int paddingBottom = 10;
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if (uiElementRectangle.Top >= workAreaRectangle.Top &&
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uiElementRectangle.Bottom <= workAreaRectangle.Bottom) // UIElement is in work area
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return noOffset;
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if (uiElementRectangle.Top < workAreaRectangle.Top) // Top of UIElement higher than work area
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return workAreaRectangle.Top - uiElementRectangle.Top + paddingTop; // positive value to move down
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else // Botom of UIElement lower than work area
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{
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int offset = workAreaRectangle.Bottom - uiElementRectangle.Bottom - paddingBottom; // negative value to move up
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if (uiElementRectangle.Top > (workAreaRectangle.Top - offset)) // will Top of UIElement be in work area if offset applied?
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return offset; // negative value to move up
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else
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return workAreaRectangle.Top - uiElementRectangle.Top + paddingTop; // negative value to move up, but only to the point, where top
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// of UIElement is just below top bound of work area
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}
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}
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private static Storyboard GetOrCreateMoveRootVisualStoryboard(FrameworkElement visualRoot)
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{
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if (MoveRootVisualStoryboards.ContainsKey(visualRoot))
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return MoveRootVisualStoryboards[visualRoot];
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else
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return CreateMoveRootVisualStoryboard(visualRoot);
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}
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private static Storyboard CreateMoveRootVisualStoryboard(FrameworkElement visualRoot)
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{
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Storyboard moveRootVisualStoryboard = new Storyboard
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{
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Duration = new Duration(TimeSpan.FromSeconds(0.35))
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};
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DoubleAnimation moveAnimation = new DoubleAnimation
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{
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EasingFunction = new CircleEase {EasingMode = EasingMode.EaseOut},
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Duration = new Duration(TimeSpan.FromSeconds(0.35)),
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FillBehavior = (visualRoot is Window) ? FillBehavior.Stop : FillBehavior.HoldEnd
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};
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moveRootVisualStoryboard.Children.Add(moveAnimation);
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if (!(visualRoot is Window))
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visualRoot.RenderTransform = new TranslateTransform();
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Storyboard.SetTarget(moveAnimation, visualRoot);
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Storyboard.SetTargetProperty(
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element: moveAnimation,
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path: (visualRoot is Window) ? new PropertyPath("Top") : new PropertyPath("(UIElement.RenderTransform).(TranslateTransform.Y)"));
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MoveRootVisualStoryboards.Add(visualRoot, moveRootVisualStoryboard);
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SubscribeToWindowStateChangedToMoveRootVisual(visualRoot);
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return moveRootVisualStoryboard;
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}
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private static void SubscribeToWindowStateChangedToMoveRootVisual(FrameworkElement visualRoot)
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{
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// ReSharper disable once CanBeReplacedWithTryCastAndCheckForNull
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if (visualRoot is Window)
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{
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Window window = (Window)visualRoot;
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window.StateChanged += (sender, args) =>
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{
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if (window.WindowState == WindowState.Normal)
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MoveRootVisualBy(
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rootVisual: window,
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moveBy: GetYOffsetToMoveUIElementInToWorkArea(
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uiElementRectangle: GetWindowRectangle(window),
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workAreaRectangle: GetWorkAreaWithTabTipClosed(window)));
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};
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}
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else
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{
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Window window = Window.GetWindow(visualRoot);
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if (window != null)
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window.StateChanged += (sender, args) =>
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{
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if (window.WindowState == WindowState.Normal)
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MoveRootVisualTo(visualRoot, 0);
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};
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}
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}
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private static void MoveRootVisualBy(FrameworkElement rootVisual, double moveBy)
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{
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if (moveBy == 0)
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return;
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Storyboard moveRootVisualStoryboard = GetOrCreateMoveRootVisualStoryboard(rootVisual);
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DoubleAnimation doubleAnimation = moveRootVisualStoryboard.Children.First() as DoubleAnimation;
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if (doubleAnimation != null)
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{
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Window window = rootVisual as Window;
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if (window != null)
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{
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doubleAnimation.From = window.Top;
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doubleAnimation.To = window.Top + moveBy;
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}
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else
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{
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doubleAnimation.From = doubleAnimation.To ?? 0;
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doubleAnimation.To = (doubleAnimation.To ?? 0) + moveBy;
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}
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}
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moveRootVisualStoryboard.Begin();
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}
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private static void MoveRootVisualTo(FrameworkElement rootVisual, double moveTo)
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{
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Storyboard moveRootVisualStoryboard = GetOrCreateMoveRootVisualStoryboard(rootVisual);
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DoubleAnimation doubleAnimation = moveRootVisualStoryboard.Children.First() as DoubleAnimation;
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if (doubleAnimation != null)
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{
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Window window = rootVisual as Window;
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if (window != null)
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{
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doubleAnimation.From = window.Top;
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doubleAnimation.To = moveTo;
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}
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else
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{
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doubleAnimation.From = doubleAnimation.To ?? 0;
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doubleAnimation.To = moveTo;
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}
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}
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moveRootVisualStoryboard.Begin();
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}
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internal static void GetUIElementInToWorkAreaWithTabTipOpened(UIElement element)
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{
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try
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{
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FrameworkElement rootVisualForAnimation = GetRootVisualForAnimation(element);
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Rectangle workAreaWithTabTipOpened = GetWorkAreaWithTabTipOpened(element);
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Rectangle uiElementRectangle;
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Window window = rootVisualForAnimation as Window;
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if (window != null && workAreaWithTabTipOpened.Height >= window.Height)
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uiElementRectangle = GetWindowRectangle(window);
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else
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uiElementRectangle = GetUIElementRect(element);
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MoveRootVisualBy(
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rootVisual: rootVisualForAnimation,
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moveBy: GetYOffsetToMoveUIElementInToWorkArea(
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uiElementRectangle: uiElementRectangle,
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workAreaRectangle: workAreaWithTabTipOpened));
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}
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catch (Exception ex)
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{
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ExceptionCatched?.Invoke(ex);
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}
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}
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private static Rectangle GetWindowRectangle(Window window)
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{
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return Rectangle.FromLTRB(
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left: (int)window.Left,
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top: (int)window.Top,
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right: (int)(window.Left + window.Width),
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bottom: (int)(window.Top + window.Height));
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}
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internal static void GetEverythingInToWorkAreaWithTabTipClosed()
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{
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try
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{
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foreach (KeyValuePair<FrameworkElement, Storyboard> moveRootVisualStoryboard in MoveRootVisualStoryboards)
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{
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Window window = moveRootVisualStoryboard.Key as Window;
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// if window exist also check if it has not been closed
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if (window != null && new WindowInteropHelper(window).Handle != IntPtr.Zero)
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MoveRootVisualBy(
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rootVisual: window,
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moveBy: GetYOffsetToMoveUIElementInToWorkArea(
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uiElementRectangle: GetWindowRectangle(window),
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workAreaRectangle: GetWorkAreaWithTabTipClosed(window)));
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else
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MoveRootVisualTo(rootVisual: moveRootVisualStoryboard.Key, moveTo: 0);
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}
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}
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catch (Exception ex)
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{
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ExceptionCatched?.Invoke(ex);
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}
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}
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}
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}
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