using System;using System.Collections.Generic;using System.Windows;using System.Windows.Controls;using System.Windows.Media.Animation;namespace WPFSpark{ /// <summary> /// Interaction logic for FluidProgressBar.xaml /// </summary> public partial class FluidProgressBar : UserControl, IDisposable { #region Internal class private class KeyFrameDetails { public KeyTime KeyFrameTime { get; set; } public List<DoubleKeyFrame> KeyFrames { get; set; } } #endregion #region Fields Dictionary<int, KeyFrameDetails> keyFrameMap = null; Dictionary<int, KeyFrameDetails> opKeyFrameMap = null; //KeyTime keyA = KeyTime.FromTimeSpan(TimeSpan.FromSeconds(0)); //KeyTime keyB = KeyTime.FromTimeSpan(TimeSpan.FromSeconds(0.5)); //KeyTime keyC = KeyTime.FromTimeSpan(TimeSpan.FromSeconds(2.0)); //KeyTime keyD = KeyTime.FromTimeSpan(TimeSpan.FromSeconds(2.5)); Storyboard sb; bool isStoryboardRunning; #endregion #region Dependency Properties #region Delay /// <summary> /// Delay Dependency Property /// </summary> public static readonly DependencyProperty DelayProperty = DependencyProperty.Register("Delay", typeof(Duration), typeof(FluidProgressBar), new FrameworkPropertyMetadata(new Duration(TimeSpan.FromMilliseconds(100)), new PropertyChangedCallback(OnDelayChanged))); /// <summary> /// Gets or sets the Delay property. This dependency property /// indicates the delay between adjacent animation timelines. /// </summary> public Duration Delay { get { return (Duration)GetValue(DelayProperty); } set { SetValue(DelayProperty, value); } } /// <summary> /// Handles changes to the Delay property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnDelayChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; Duration oldDelay = (Duration)e.OldValue; Duration newDelay = pBar.Delay; pBar.OnDelayChanged(oldDelay, newDelay); } /// <summary> /// Provides derived classes an opportunity to handle changes to the Delay property. /// </summary> /// <param name="oldDelay">Old Value</param> /// <param name="newDelay">New Value</param> protected virtual void OnDelayChanged(Duration oldDelay, Duration newDelay) { bool isActive = isStoryboardRunning; if (isActive) StopFluidAnimation(); UpdateTimelineDelay(newDelay); if (isActive) StartFluidAnimation(); } #endregion #region DotWidth /// <summary> /// DotWidth Dependency Property /// </summary> public static readonly DependencyProperty DotWidthProperty = DependencyProperty.Register("DotWidth", typeof(double), typeof(FluidProgressBar), new FrameworkPropertyMetadata(4.0, new PropertyChangedCallback(OnDotWidthChanged))); /// <summary> /// Gets or sets the DotWidth property. This dependency property /// indicates the width of each of the dots. /// </summary> public double DotWidth { get { return (double)GetValue(DotWidthProperty); } set { SetValue(DotWidthProperty, value); } } /// <summary> /// Handles changes to the DotWidth property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnDotWidthChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; double oldDotWidth = (double)e.OldValue; double newDotWidth = pBar.DotWidth; pBar.OnDotWidthChanged(oldDotWidth, newDotWidth); } /// <summary> /// Provides derived classes an opportunity to handle changes to the DotWidth property. /// </summary> /// <param name="oldDotWidth">Old Value</param> /// <param name="newDotWidth">New Value</param> protected virtual void OnDotWidthChanged(double oldDotWidth, double newDotWidth) { if (isStoryboardRunning) RestartStoryboardAnimation(); } #endregion #region DotHeight /// <summary> /// DotHeight Dependency Property /// </summary> public static readonly DependencyProperty DotHeightProperty = DependencyProperty.Register("DotHeight", typeof(double), typeof(FluidProgressBar), new FrameworkPropertyMetadata(4.0, new PropertyChangedCallback(OnDotHeightChanged))); /// <summary> /// Gets or sets the DotHeight property. This dependency property /// indicates the height of each of the dots. /// </summary> public double DotHeight { get { return (double)GetValue(DotHeightProperty); } set { SetValue(DotHeightProperty, value); } } /// <summary> /// Handles changes to the DotHeight property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnDotHeightChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; double oldDotHeight = (double)e.OldValue; double newDotHeight = pBar.DotHeight; pBar.OnDotHeightChanged(oldDotHeight, newDotHeight); } /// <summary> /// Provides derived classes an opportunity to handle changes to the DotHeight property. /// </summary> /// <param name="oldDotHeight">Old Value</param> /// <param name="newDotHeight">New Value</param> protected virtual void OnDotHeightChanged(double oldDotHeight, double newDotHeight) { if (isStoryboardRunning) RestartStoryboardAnimation(); } #endregion #region DotRadiusX /// <summary> /// DotRadiusX Dependency Property /// </summary> public static readonly DependencyProperty DotRadiusXProperty = DependencyProperty.Register("DotRadiusX", typeof(double), typeof(FluidProgressBar), new FrameworkPropertyMetadata(0.0, new PropertyChangedCallback(OnDotRadiusXChanged))); /// <summary> /// Gets or sets the DotRadiusX property. This dependency property /// indicates the corner radius width of each of the dot. /// </summary> public double DotRadiusX { get { return (double)GetValue(DotRadiusXProperty); } set { SetValue(DotRadiusXProperty, value); } } /// <summary> /// Handles changes to the DotRadiusX property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnDotRadiusXChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; double oldDotRadiusX = (double)e.OldValue; double newDotRadiusX = pBar.DotRadiusX; pBar.OnDotRadiusXChanged(oldDotRadiusX, newDotRadiusX); } /// <summary> /// Provides derived classes an opportunity to handle changes to the DotRadiusX property. /// </summary> /// <param name="oldDotRadiusX">Old Value</param> /// <param name="newDotRadiusX">New Value</param> protected virtual void OnDotRadiusXChanged(double oldDotRadiusX, double newDotRadiusX) { if (isStoryboardRunning) RestartStoryboardAnimation(); } #endregion #region DotRadiusY /// <summary> /// DotRadiusY Dependency Property /// </summary> public static readonly DependencyProperty DotRadiusYProperty = DependencyProperty.Register("DotRadiusY", typeof(double), typeof(FluidProgressBar), new FrameworkPropertyMetadata(0.0, new PropertyChangedCallback(OnDotRadiusYChanged))); /// <summary> /// Gets or sets the DotRadiusY property. This dependency property /// indicates the corner height of each of the dots. /// </summary> public double DotRadiusY { get { return (double)GetValue(DotRadiusYProperty); } set { SetValue(DotRadiusYProperty, value); } } /// <summary> /// Handles changes to the DotRadiusY property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnDotRadiusYChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; double oldDotRadiusY = (double)e.OldValue; double newDotRadiusY = pBar.DotRadiusY; pBar.OnDotRadiusYChanged(oldDotRadiusY, newDotRadiusY); } /// <summary> /// Provides derived classes an opportunity to handle changes to the DotRadiusY property. /// </summary> /// <param name="oldDotRadiusY">Old Value</param> /// <param name="newDotRadiusY">New Value</param> protected virtual void OnDotRadiusYChanged(double oldDotRadiusY, double newDotRadiusY) { if (isStoryboardRunning) RestartStoryboardAnimation(); } #endregion #region DurationA /// <summary> /// DurationA Dependency Property /// </summary> public static readonly DependencyProperty DurationAProperty = DependencyProperty.Register("DurationA", typeof(Duration), typeof(FluidProgressBar), new FrameworkPropertyMetadata(new Duration(TimeSpan.FromSeconds(0.5)), new PropertyChangedCallback(OnDurationAChanged))); /// <summary> /// Gets or sets the DurationA property. This dependency property /// indicates the duration of the animation from the start point till KeyFrameA. /// </summary> public Duration DurationA { get { return (Duration)GetValue(DurationAProperty); } set { SetValue(DurationAProperty, value); } } /// <summary> /// Handles changes to the DurationA property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnDurationAChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; Duration oldDurationA = (Duration)e.OldValue; Duration newDurationA = pBar.DurationA; pBar.OnDurationAChanged(oldDurationA, newDurationA); } /// <summary> /// Provides derived classes an opportunity to handle changes to the DurationA property. /// </summary> /// <param name="oldDurationA">Old Value</param> /// <param name="newDurationA">New Value</param> protected virtual void OnDurationAChanged(Duration oldDurationA, Duration newDurationA) { bool isActive = isStoryboardRunning; if (isActive) StopFluidAnimation(); UpdateKeyTimes(1, newDurationA); if (isActive) StartFluidAnimation(); } #endregion #region DurationB /// <summary> /// DurationB Dependency Property /// </summary> public static readonly DependencyProperty DurationBProperty = DependencyProperty.Register("DurationB", typeof(Duration), typeof(FluidProgressBar), new FrameworkPropertyMetadata(new Duration(TimeSpan.FromSeconds(1.5)), new PropertyChangedCallback(OnDurationBChanged))); /// <summary> /// Gets or sets the DurationB property. This dependency property /// indicates the duration of the animation from the KeyFrameA till KeyFrameB. /// </summary> public Duration DurationB { get { return (Duration)GetValue(DurationBProperty); } set { SetValue(DurationBProperty, value); } } /// <summary> /// Handles changes to the DurationB property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnDurationBChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; Duration oldDurationB = (Duration)e.OldValue; Duration newDurationB = pBar.DurationB; pBar.OnDurationBChanged(oldDurationB, newDurationB); } /// <summary> /// Provides derived classes an opportunity to handle changes to the DurationB property. /// </summary> /// <param name="oldDurationB">Old Value</param> /// <param name="newDurationB">New Value</param> protected virtual void OnDurationBChanged(Duration oldDurationB, Duration newDurationB) { bool isActive = isStoryboardRunning; if (isActive) StopFluidAnimation(); UpdateKeyTimes(2, newDurationB); if (isActive) StartFluidAnimation(); } #endregion #region DurationC /// <summary> /// DurationC Dependency Property /// </summary> public static readonly DependencyProperty DurationCProperty = DependencyProperty.Register("DurationC", typeof(Duration), typeof(FluidProgressBar), new FrameworkPropertyMetadata(new Duration(TimeSpan.FromSeconds(0.5)), new PropertyChangedCallback(OnDurationCChanged))); /// <summary> /// Gets or sets the DurationC property. This dependency property /// indicates the duration of the animation from KeyFrameB till the end point. /// </summary> public Duration DurationC { get { return (Duration)GetValue(DurationCProperty); } set { SetValue(DurationCProperty, value); } } /// <summary> /// Handles changes to the DurationC property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnDurationCChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; Duration oldDurationC = (Duration)e.OldValue; Duration newDurationC = pBar.DurationC; pBar.OnDurationCChanged(oldDurationC, newDurationC); } /// <summary> /// Provides derived classes an opportunity to handle changes to the DurationC property. /// </summary> /// <param name="oldDurationC">Old Value</param> /// <param name="newDurationC">New Value</param> protected virtual void OnDurationCChanged(Duration oldDurationC, Duration newDurationC) { bool isActive = isStoryboardRunning; if (isActive) StopFluidAnimation(); UpdateKeyTimes(3, newDurationC); if (isActive) StartFluidAnimation(); } #endregion #region KeyFrameA /// <summary> /// KeyFrameA Dependency Property /// </summary> public static readonly DependencyProperty KeyFrameAProperty = DependencyProperty.Register("KeyFrameA", typeof(double), typeof(FluidProgressBar), new FrameworkPropertyMetadata(0.33, new PropertyChangedCallback(OnKeyFrameAChanged))); /// <summary> /// Gets or sets the KeyFrameA property. This dependency property /// indicates the first KeyFrame position after the initial keyframe. /// </summary> public double KeyFrameA { get { return (double)GetValue(KeyFrameAProperty); } set { SetValue(KeyFrameAProperty, value); } } /// <summary> /// Handles changes to the KeyFrameA property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnKeyFrameAChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; double oldKeyFrameA = (double)e.OldValue; double newKeyFrameA = pBar.KeyFrameA; pBar.OnKeyFrameAChanged(oldKeyFrameA, newKeyFrameA); } /// <summary> /// Provides derived classes an opportunity to handle changes to the KeyFrameA property. /// </summary> /// <param name="oldKeyFrameA">Old Value</param> /// <param name="newKeyFrameA">New Value</param> protected virtual void OnKeyFrameAChanged(double oldKeyFrameA, double newKeyFrameA) { RestartStoryboardAnimation(); } #endregion #region KeyFrameB /// <summary> /// KeyFrameB Dependency Property /// </summary> public static readonly DependencyProperty KeyFrameBProperty = DependencyProperty.Register("KeyFrameB", typeof(double), typeof(FluidProgressBar), new FrameworkPropertyMetadata(0.63, new PropertyChangedCallback(OnKeyFrameBChanged))); /// <summary> /// Gets or sets the KeyFrameB property. This dependency property /// indicates the second KeyFrame position after the initial keyframe. /// </summary> public double KeyFrameB { get { return (double)GetValue(KeyFrameBProperty); } set { SetValue(KeyFrameBProperty, value); } } /// <summary> /// Handles changes to the KeyFrameB property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnKeyFrameBChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; double oldKeyFrameB = (double)e.OldValue; double newKeyFrameB = pBar.KeyFrameB; pBar.OnKeyFrameBChanged(oldKeyFrameB, newKeyFrameB); } /// <summary> /// Provides derived classes an opportunity to handle changes to the KeyFrameB property. /// </summary> /// <param name="oldKeyFrameB">Old Value</param> /// <param name="newKeyFrameB">New Value</param> protected virtual void OnKeyFrameBChanged(double oldKeyFrameB, double newKeyFrameB) { RestartStoryboardAnimation(); } #endregion #region Oscillate /// <summary> /// Oscillate Dependency Property /// </summary> public static readonly DependencyProperty OscillateProperty = DependencyProperty.Register("Oscillate", typeof(bool), typeof(FluidProgressBar), new FrameworkPropertyMetadata(false, new PropertyChangedCallback(OnOscillateChanged))); /// <summary> /// Gets or sets the Oscillate property. This dependency property /// indicates whether the animation should oscillate. /// </summary> public bool Oscillate { get { return (bool)GetValue(OscillateProperty); } set { SetValue(OscillateProperty, value); } } /// <summary> /// Handles changes to the Oscillate property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnOscillateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; bool oldOscillate = (bool)e.OldValue; bool newOscillate = pBar.Oscillate; pBar.OnOscillateChanged(oldOscillate, newOscillate); } /// <summary> /// Provides derived classes an opportunity to handle changes to the Oscillate property. /// </summary> /// <param name="oldOscillate">Old Value</param> /// <param name="newOscillate">New Value</param> protected virtual void OnOscillateChanged(bool oldOscillate, bool newOscillate) { if (sb != null) { StopFluidAnimation(); sb.AutoReverse = newOscillate; sb.Duration = newOscillate ? ReverseDuration : TotalDuration; StartFluidAnimation(); } } #endregion #region ReverseDuration /// <summary> /// ReverseDuration Dependency Property /// </summary> public static readonly DependencyProperty ReverseDurationProperty = DependencyProperty.Register("ReverseDuration", typeof(Duration), typeof(FluidProgressBar), new FrameworkPropertyMetadata(new Duration(TimeSpan.FromSeconds(2.9)), new PropertyChangedCallback(OnReverseDurationChanged))); /// <summary> /// Gets or sets the ReverseDuration property. This dependency property /// indicates the duration of the total animation in reverse. /// </summary> public Duration ReverseDuration { get { return (Duration)GetValue(ReverseDurationProperty); } set { SetValue(ReverseDurationProperty, value); } } /// <summary> /// Handles changes to the ReverseDuration property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnReverseDurationChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; Duration oldReverseDuration = (Duration)e.OldValue; Duration newReverseDuration = pBar.ReverseDuration; pBar.OnReverseDurationChanged(oldReverseDuration, newReverseDuration); } /// <summary> /// Provides derived classes an opportunity to handle changes to the ReverseDuration property. /// </summary> /// <param name="oldReverseDuration">Old Value</param> /// <param name="newReverseDuration">New Value</param> protected virtual void OnReverseDurationChanged(Duration oldReverseDuration, Duration newReverseDuration) { if ((sb != null) && (Oscillate)) { sb.Duration = newReverseDuration; RestartStoryboardAnimation(); } } #endregion #region TotalDuration /// <summary> /// TotalDuration Dependency Property /// </summary> public static readonly DependencyProperty TotalDurationProperty = DependencyProperty.Register("TotalDuration", typeof(Duration), typeof(FluidProgressBar), new FrameworkPropertyMetadata(new Duration(TimeSpan.FromSeconds(4.4)), new PropertyChangedCallback(OnTotalDurationChanged))); /// <summary> /// Gets or sets the TotalDuration property. This dependency property /// indicates the duration of the complete animation. /// </summary> public Duration TotalDuration { get { return (Duration)GetValue(TotalDurationProperty); } set { SetValue(TotalDurationProperty, value); } } /// <summary> /// Handles changes to the TotalDuration property. /// </summary> /// <param name="d">FluidProgressBar</param> /// <param name="e">DependencyProperty changed event arguments</param> private static void OnTotalDurationChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { FluidProgressBar pBar = (FluidProgressBar)d; Duration oldTotalDuration = (Duration)e.OldValue; Duration newTotalDuration = pBar.TotalDuration; pBar.OnTotalDurationChanged(oldTotalDuration, newTotalDuration); } /// <summary> /// Provides derived classes an opportunity to handle changes to the TotalDuration property. /// </summary> /// <param name="oldTotalDuration">Old Value</param> /// <param name="newTotalDuration">New Value</param> protected virtual void OnTotalDurationChanged(Duration oldTotalDuration, Duration newTotalDuration) { if ((sb != null) && (!Oscillate)) { sb.Duration = newTotalDuration; RestartStoryboardAnimation(); } } #endregion #endregion #region Construction / Initialization /// <summary> /// Ctor /// </summary> public FluidProgressBar() { InitializeComponent(); keyFrameMap = new Dictionary<int, KeyFrameDetails>(); opKeyFrameMap = new Dictionary<int, KeyFrameDetails>(); GetKeyFramesFromStoryboard(); this.SizeChanged = new SizeChangedEventHandler(OnSizeChanged); this.Loaded = new RoutedEventHandler(OnLoaded); this.IsVisibleChanged = new DependencyPropertyChangedEventHandler(OnIsVisibleChanged); } #endregion #region Event Handlers /// <summary> /// Handles the Loaded event /// </summary> /// <param name="sender">Sender</param> /// <param name="e">EventArgs</param> void OnLoaded(object sender, System.Windows.RoutedEventArgs e) { // Update the key frames UpdateKeyFrames(); // Start the animation StartFluidAnimation(); } /// <summary> /// Handles the SizeChanged event /// </summary> /// <param name="sender">Sender</param> /// <param name="e">EventArgs</param> void OnSizeChanged(object sender, System.Windows.SizeChangedEventArgs e) { // Restart the animation RestartStoryboardAnimation(); } /// <summary> /// Handles the IsVisibleChanged event /// </summary> /// <param name="sender">Sender</param> /// <param name="e">EventArgs</param> void OnIsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e) { if (this.Visibility == Visibility.Visible) { UpdateKeyFrames(); StartFluidAnimation(); } else { StopFluidAnimation(); } } #endregion #region Helpers /// <summary> /// Starts the animation /// </summary> private void StartFluidAnimation() { if ((sb != null) && (!isStoryboardRunning)) { sb.Begin(); isStoryboardRunning = true; } } /// <summary> /// Stops the animation /// </summary> private void StopFluidAnimation() { if ((sb != null) && (isStoryboardRunning)) { // Move the timeline to the end and stop the animation sb.SeekAlignedToLastTick(TimeSpan.FromSeconds(0)); sb.Stop(); isStoryboardRunning = false; } } /// <summary> /// Stops the animation, updates the keyframes and starts the animation /// </summary> private void RestartStoryboardAnimation() { StopFluidAnimation(); UpdateKeyFrames(); StartFluidAnimation(); } /// <summary> /// Obtains the keyframes for each animation in the storyboard so that /// they can be updated when required. /// </summary> private void GetKeyFramesFromStoryboard() { sb = (Storyboard)this.Resources["FluidStoryboard"]; if (sb != null) { foreach (Timeline timeline in sb.Children) { DoubleAnimationUsingKeyFrames dakeys = timeline as DoubleAnimationUsingKeyFrames; if (dakeys != null) { string targetName = Storyboard.GetTargetName(dakeys); ProcessDoubleAnimationWithKeys(dakeys, !targetName.StartsWith("Trans")); } } } } /// <summary> /// Gets the keyframes in the given animation and stores them in a map /// </summary> /// <param name="dakeys">Animation containg keyframes</param> /// <param name="isOpacityAnim">Flag to indicate whether the animation targets the opacity or the translate transform</param> private void ProcessDoubleAnimationWithKeys(DoubleAnimationUsingKeyFrames dakeys, bool isOpacityAnim = false) { // Get all the keyframes in the instance. for (int i = 0; i < dakeys.KeyFrames.Count; i ) { DoubleKeyFrame frame = dakeys.KeyFrames[i]; Dictionary<int, KeyFrameDetails> targetMap = null; if (isOpacityAnim) { targetMap = opKeyFrameMap; } else { targetMap = keyFrameMap; } if (!targetMap.ContainsKey(i)) { targetMap[i] = new KeyFrameDetails() { KeyFrames = new List<DoubleKeyFrame>() }; } // Update the keyframe time and add it to the map targetMap[i].KeyFrameTime = frame.KeyTime; targetMap[i].KeyFrames.Add(frame); } } /// <summary> /// Update the key value of each keyframe based on the current width of the FluidProgressBar /// </summary> private void UpdateKeyFrames() { // Get the current width of the FluidProgressBar double width = this.ActualWidth; // Update the values only if the current width is greater than Zero and is visible if ((width > 0.0) && (this.Visibility == System.Windows.Visibility.Visible)) { double Point0 = -10; double PointA = width * KeyFrameA; double PointB = width * KeyFrameB; double PointC = width 10; // Update the keyframes stored in the map UpdateKeyFrame(0, Point0); UpdateKeyFrame(1, PointA); UpdateKeyFrame(2, PointB); UpdateKeyFrame(3, PointC); } } /// <summary> /// Update the key value of the keyframes stored in the map /// </summary> /// <param name="key">Key of the dictionary</param> /// <param name="newValue">New value to be given to the key value of the keyframes</param> private void UpdateKeyFrame(int key, double newValue) { if (keyFrameMap.ContainsKey(key)) { foreach (var frame in keyFrameMap[key].KeyFrames) { if (frame is LinearDoubleKeyFrame) { frame.SetValue(LinearDoubleKeyFrame.ValueProperty, newValue); } else if (frame is EasingDoubleKeyFrame) { frame.SetValue(EasingDoubleKeyFrame.ValueProperty, newValue); } } } } /// <summary> /// Updates the duration of each of the keyframes stored in the map /// </summary> /// <param name="key">Key of the dictionary</param> /// <param name="newValue">New value to be given to the duration value of the keyframes</param> private void UpdateKeyTimes(int key, Duration newDuration) { switch (key) { case 1: UpdateKeyTime(1, newDuration); UpdateKeyTime(2, newDuration DurationB); UpdateKeyTime(3, newDuration DurationB DurationC); break; case 2: UpdateKeyTime(2, DurationA newDuration); UpdateKeyTime(3, DurationA newDuration DurationC); break; case 3: UpdateKeyTime(3, DurationA DurationB newDuration); break; default: break; } // Update the opacity animation duration based on the complete duration // of the animation UpdateOpacityKeyTime(1, DurationA DurationB DurationC); } /// <summary> /// Updates the duration of each of the keyframes stored in the map /// </summary> /// <param name="key">Key of the dictionary</param> /// <param name="newDuration">New value to be given to the duration value of the keyframes</param> private void UpdateKeyTime(int key, Duration newDuration) { if (keyFrameMap.ContainsKey(key)) { KeyTime newKeyTime = KeyTime.FromTimeSpan(newDuration.TimeSpan); keyFrameMap[key].KeyFrameTime = newKeyTime; foreach (var frame in keyFrameMap[key].KeyFrames) { if (frame is LinearDoubleKeyFrame) { frame.SetValue(LinearDoubleKeyFrame.KeyTimeProperty, newKeyTime); } else if (frame is EasingDoubleKeyFrame) { frame.SetValue(EasingDoubleKeyFrame.KeyTimeProperty, newKeyTime); } } } } /// <summary> /// Updates the duration of the second keyframe of all the opacity animations /// </summary> /// <param name="key">Key of the dictionary</param> /// <param name="newDuration">New value to be given to the duration value of the keyframes</param> private void UpdateOpacityKeyTime(int key, Duration newDuration) { if (opKeyFrameMap.ContainsKey(key)) { KeyTime newKeyTime = KeyTime.FromTimeSpan(newDuration.TimeSpan); opKeyFrameMap[key].KeyFrameTime = newKeyTime; foreach (var frame in opKeyFrameMap[key].KeyFrames) { if (frame is DiscreteDoubleKeyFrame) { frame.SetValue(DiscreteDoubleKeyFrame.KeyTimeProperty, newKeyTime); } } } } /// <summary> /// Updates the delay between consecutive timelines /// </summary> /// <param name="newDelay">Delay duration</param> private void UpdateTimelineDelay(Duration newDelay) { Duration nextDelay = new Duration(TimeSpan.FromSeconds(0)); if (sb != null) { for (int i = 0; i < sb.Children.Count; i ) { // The first five animations are for translation // The next five animations are for opacity if (i == 5) nextDelay = newDelay; else nextDelay = newDelay; DoubleAnimationUsingKeyFrames timeline = sb.Children[i] as DoubleAnimationUsingKeyFrames; if (timeline != null) { timeline.SetValue(DoubleAnimationUsingKeyFrames.BeginTimeProperty, nextDelay.TimeSpan); } } } } #endregion #region IDisposable Implementation /// <summary> /// Releases all resources used by an instance of the FluidProgressBar class. /// </summary> /// <remarks> /// This method calls the virtual Dispose(bool) method, passing in 'true', and then suppresses /// finalization of the instance. /// </remarks> public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } /// <summary> /// Releases unmanaged resources before an instance of the FluidProgressBar class is reclaimed by garbage collection. /// </summary> /// <remarks> /// NOTE: Leave out the finalizer altogether if this class doesn't own unmanaged resources itself, /// but leave the other methods exactly as they are. /// This method releases unmanaged resources by calling the virtual Dispose(bool), passing in 'false'. /// </remarks> ~FluidProgressBar() { Dispose(false); } /// <summary> /// Releases the unmanaged resources used by an instance of the FluidProgressBar class and optionally releases the managed resources. /// </summary> /// <param name="disposing">'true' to release both managed and unmanaged resources; 'false' to release only unmanaged resources.</param> protected virtual void Dispose(bool disposing) { if (disposing) { // free managed resources here this.SizeChanged -= OnSizeChanged; this.Loaded -= OnLoaded; this.IsVisibleChanged -= OnIsVisibleChanged; } // free native resources if there are any. } #endregion }}
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