Revision 7fcbf914 trunk/NotifyIconWpf/Util.cs
b/trunk/NotifyIconWpf/Util.cs | ||
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// hardcodet.net NotifyIcon for WPF |
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// Copyright (c) 2009 Philipp Sumi |
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// Copyright (c) 2009 - 2013 Philipp Sumi
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// Contact and Information: http://www.hardcodet.net |
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// |
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// This library is free software; you can redistribute it and/or |
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namespace Hardcodet.Wpf.TaskbarNotification |
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{ |
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/// <summary> |
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/// Util and extension methods. |
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/// </summary> |
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internal static class Util |
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{ |
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public static readonly object SyncRoot = new object(); |
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|
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#region IsDesignMode |
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private static readonly bool isDesignMode; |
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|
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/// <summary> |
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/// Checks whether the application is currently in design mode. |
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/// </summary> |
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public static bool IsDesignMode |
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{ |
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get { return isDesignMode; } |
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} |
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#endregion |
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|
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#region construction |
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|
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static Util() |
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{ |
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isDesignMode = |
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(bool) |
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DependencyPropertyDescriptor.FromProperty(DesignerProperties.IsInDesignModeProperty, typeof (FrameworkElement)) |
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.Metadata.DefaultValue; |
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} |
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|
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#endregion |
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|
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#region CreateHelperWindow |
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|
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/// <summary> |
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/// Creates an transparent window without dimension that |
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/// can be used to temporarily obtain focus and/or |
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/// be used as a window message sink. |
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/// </summary> |
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/// <returns>Empty window.</returns> |
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public static Window CreateHelperWindow() |
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{ |
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return new Window |
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{ |
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Width = 0, |
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Height = 0, |
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ShowInTaskbar = false, |
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WindowStyle = WindowStyle.None, |
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AllowsTransparency = true, |
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Opacity = 0 |
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}; |
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} |
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|
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#endregion |
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|
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#region WriteIconData |
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|
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/// <summary> |
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/// Updates the taskbar icons with data provided by a given |
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/// <see cref="NotifyIconData"/> instance. |
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/// </summary> |
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/// <param name="data">Configuration settings for the NotifyIcon.</param> |
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/// <param name="command">Operation on the icon (e.g. delete the icon).</param> |
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/// <returns>True if the data was successfully written.</returns> |
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/// <remarks>See Shell_NotifyIcon documentation on MSDN for details.</remarks> |
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public static bool WriteIconData(ref NotifyIconData data, NotifyCommand command) |
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{ |
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return WriteIconData(ref data, command, data.ValidMembers); |
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} |
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|
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|
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/// <summary> |
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/// Updates the taskbar icons with data provided by a given |
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/// <see cref="NotifyIconData"/> instance. |
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/// </summary> |
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/// <param name="data">Configuration settings for the NotifyIcon.</param> |
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/// <param name="command">Operation on the icon (e.g. delete the icon).</param> |
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/// <param name="flags">Defines which members of the <paramref name="data"/> |
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/// structure are set.</param> |
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/// <returns>True if the data was successfully written.</returns> |
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/// <remarks>See Shell_NotifyIcon documentation on MSDN for details.</remarks> |
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public static bool WriteIconData(ref NotifyIconData data, NotifyCommand command, IconDataMembers flags) |
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{ |
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//do nothing if in design mode |
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if (IsDesignMode) return true; |
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|
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data.ValidMembers = flags; |
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lock (SyncRoot) |
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{ |
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return WinApi.Shell_NotifyIcon(command, ref data); |
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} |
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} |
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#endregion |
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|
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#region GetBalloonFlag |
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|
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/// <summary> |
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/// Gets a <see cref="BalloonFlags"/> enum value that |
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/// matches a given <see cref="BalloonIcon"/>. |
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/// </summary> |
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public static BalloonFlags GetBalloonFlag(this BalloonIcon icon) |
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{ |
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switch (icon) |
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{ |
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case BalloonIcon.None: |
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return BalloonFlags.None; |
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case BalloonIcon.Info: |
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return BalloonFlags.Info; |
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case BalloonIcon.Warning: |
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return BalloonFlags.Warning; |
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case BalloonIcon.Error: |
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return BalloonFlags.Error; |
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default: |
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throw new ArgumentOutOfRangeException("icon"); |
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} |
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} |
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#endregion |
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|
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#region ImageSource to Icon |
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|
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/// <summary> |
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/// Reads a given image resource into a WinForms icon. |
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/// </summary> |
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/// <param name="imageSource">Image source pointing to |
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/// an icon file (*.ico).</param> |
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/// <returns>An icon object that can be used with the |
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/// taskbar area.</returns> |
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public static Icon ToIcon(this ImageSource imageSource) |
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{ |
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if (imageSource == null) return null; |
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Uri uri = new Uri(imageSource.ToString()); |
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StreamResourceInfo streamInfo = Application.GetResourceStream(uri); |
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if (streamInfo == null) |
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{ |
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string msg = "The supplied image source '{0}' could not be resolved."; |
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msg = String.Format(msg, imageSource); |
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throw new ArgumentException(msg); |
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} |
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return new Icon(streamInfo.Stream); |
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} |
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#endregion |
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|
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#region evaluate listings |
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|
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/// <summary> |
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/// Checks a list of candidates for equality to a given |
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/// reference value. |
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/// </summary> |
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/// <typeparam name="T"></typeparam> |
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/// <param name="value">The evaluated value.</param> |
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/// <param name="candidates">A liste of possible values that are |
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/// regarded valid.</param> |
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/// <returns>True if one of the submitted <paramref name="candidates"/> |
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/// matches the evaluated value. If the <paramref name="candidates"/> |
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/// parameter itself is null, too, the method returns false as well, |
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/// which allows to check with null values, too.</returns> |
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/// <exception cref="ArgumentNullException">If <paramref name="candidates"/> |
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/// is a null reference.</exception> |
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public static bool Is<T>(this T value, params T[] candidates) |
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{ |
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if (candidates == null) return false; |
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foreach (var t in candidates) |
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{ |
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if (value.Equals(t)) return true; |
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} |
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return false; |
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} |
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#endregion |
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|
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#region match MouseEvent to PopupActivation |
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|
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/// <summary> |
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/// Checks if a given <see cref="PopupActivationMode"/> is a match for |
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/// an effectively pressed mouse button. |
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/// </summary> |
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public static bool IsMatch(this MouseEvent me, PopupActivationMode activationMode) |
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{ |
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switch (activationMode) |
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{ |
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case PopupActivationMode.LeftClick: |
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return me == MouseEvent.IconLeftMouseUp; |
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case PopupActivationMode.RightClick: |
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return me == MouseEvent.IconRightMouseUp; |
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case PopupActivationMode.LeftOrRightClick: |
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return me.Is(MouseEvent.IconLeftMouseUp, MouseEvent.IconRightMouseUp); |
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case PopupActivationMode.LeftOrDoubleClick: |
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return me.Is(MouseEvent.IconLeftMouseUp, MouseEvent.IconDoubleClick); |
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case PopupActivationMode.DoubleClick: |
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return me.Is(MouseEvent.IconDoubleClick); |
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case PopupActivationMode.MiddleClick: |
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return me == MouseEvent.IconMiddleMouseUp; |
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case PopupActivationMode.All: |
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//return true for everything except mouse movements |
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return me != MouseEvent.MouseMove; |
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default: |
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throw new ArgumentOutOfRangeException("activationMode"); |
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} |
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} |
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#endregion |
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|
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#region execute command |
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|
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/// <summary> |
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/// Executes a given command if its <see cref="ICommand.CanExecute"/> method |
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/// indicates it can run. |
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/// </summary> |
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/// <param name="command">The command to be executed, or a null reference.</param> |
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/// <param name="commandParameter">An optional parameter that is associated with |
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/// the command.</param> |
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/// <param name="target">The target element on which to raise the command.</param> |
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public static void ExecuteIfEnabled(this ICommand command, object commandParameter, IInputElement target) |
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{ |
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if (command == null) return; |
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RoutedCommand rc = command as RoutedCommand; |
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if (rc != null) |
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{ |
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//routed commands work on a target |
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if (rc.CanExecute(commandParameter, target)) rc.Execute(commandParameter, target); |
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} |
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else if (command.CanExecute(commandParameter)) |
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{ |
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command.Execute(commandParameter); |
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} |
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} |
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#endregion |
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|
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/// <summary> |
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/// Returns a dispatcher for multi-threaded scenarios |
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/// </summary> |
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/// <returns></returns> |
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internal static Dispatcher GetDispatcher(this DispatcherObject source) |
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{ |
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//use the application's dispatcher by default |
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if (Application.Current != null) return Application.Current.Dispatcher; |
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|
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//fallback for WinForms environments |
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if (source.Dispatcher != null) return source.Dispatcher; |
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//ultimatively use the thread's dispatcher |
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return Dispatcher.CurrentDispatcher; |
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} |
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|
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/// <summary> |
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/// Checks whether the <see cref="FrameworkElement.DataContextProperty"/> |
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/// is bound or not. |
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/// Util and extension methods. |
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/// </summary> |
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/// <param name="element">The element to be checked.</param> |
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/// <returns>True if the data context property is being managed by a |
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/// binding expression.</returns> |
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/// <exception cref="ArgumentNullException">If <paramref name="element"/> |
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/// is a null reference.</exception> |
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public static bool IsDataContextDataBound(this FrameworkElement element) |
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internal static class Util |
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{ |
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if (element == null) throw new ArgumentNullException("element"); |
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return element.GetBindingExpression(FrameworkElement.DataContextProperty) != null; |
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public static readonly object SyncRoot = new object(); |
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|
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#region IsDesignMode |
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|
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private static readonly bool isDesignMode; |
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|
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/// <summary> |
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/// Checks whether the application is currently in design mode. |
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/// </summary> |
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public static bool IsDesignMode |
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{ |
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get { return isDesignMode; } |
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} |
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|
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#endregion |
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|
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#region construction |
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|
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static Util() |
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{ |
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isDesignMode = |
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(bool) |
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DependencyPropertyDescriptor.FromProperty(DesignerProperties.IsInDesignModeProperty, |
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typeof (FrameworkElement)) |
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.Metadata.DefaultValue; |
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} |
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|
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#endregion |
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|
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#region CreateHelperWindow |
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|
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/// <summary> |
|
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/// Creates an transparent window without dimension that |
|
75 |
/// can be used to temporarily obtain focus and/or |
|
76 |
/// be used as a window message sink. |
|
77 |
/// </summary> |
|
78 |
/// <returns>Empty window.</returns> |
|
79 |
public static Window CreateHelperWindow() |
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{ |
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return new Window |
|
82 |
{ |
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Width = 0, |
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Height = 0, |
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ShowInTaskbar = false, |
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WindowStyle = WindowStyle.None, |
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AllowsTransparency = true, |
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Opacity = 0 |
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}; |
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} |
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|
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#endregion |
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|
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#region WriteIconData |
|
95 |
|
|
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/// <summary> |
|
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/// Updates the taskbar icons with data provided by a given |
|
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/// <see cref="NotifyIconData"/> instance. |
|
99 |
/// </summary> |
|
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/// <param name="data">Configuration settings for the NotifyIcon.</param> |
|
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/// <param name="command">Operation on the icon (e.g. delete the icon).</param> |
|
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/// <returns>True if the data was successfully written.</returns> |
|
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/// <remarks>See Shell_NotifyIcon documentation on MSDN for details.</remarks> |
|
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public static bool WriteIconData(ref NotifyIconData data, NotifyCommand command) |
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{ |
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return WriteIconData(ref data, command, data.ValidMembers); |
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} |
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|
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|
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/// <summary> |
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/// Updates the taskbar icons with data provided by a given |
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/// <see cref="NotifyIconData"/> instance. |
|
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/// </summary> |
|
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/// <param name="data">Configuration settings for the NotifyIcon.</param> |
|
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/// <param name="command">Operation on the icon (e.g. delete the icon).</param> |
|
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/// <param name="flags">Defines which members of the <paramref name="data"/> |
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/// structure are set.</param> |
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/// <returns>True if the data was successfully written.</returns> |
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/// <remarks>See Shell_NotifyIcon documentation on MSDN for details.</remarks> |
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public static bool WriteIconData(ref NotifyIconData data, NotifyCommand command, IconDataMembers flags) |
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{ |
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//do nothing if in design mode |
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if (IsDesignMode) return true; |
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|
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data.ValidMembers = flags; |
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lock (SyncRoot) |
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{ |
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return WinApi.Shell_NotifyIcon(command, ref data); |
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} |
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} |
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|
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#endregion |
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|
|
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#region GetBalloonFlag |
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|
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/// <summary> |
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/// Gets a <see cref="BalloonFlags"/> enum value that |
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/// matches a given <see cref="BalloonIcon"/>. |
|
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/// </summary> |
|
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public static BalloonFlags GetBalloonFlag(this BalloonIcon icon) |
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{ |
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switch (icon) |
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{ |
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case BalloonIcon.None: |
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return BalloonFlags.None; |
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case BalloonIcon.Info: |
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return BalloonFlags.Info; |
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case BalloonIcon.Warning: |
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return BalloonFlags.Warning; |
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case BalloonIcon.Error: |
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return BalloonFlags.Error; |
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default: |
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throw new ArgumentOutOfRangeException("icon"); |
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} |
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} |
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|
|
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#endregion |
|
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|
|
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#region ImageSource to Icon |
|
160 |
|
|
161 |
/// <summary> |
|
162 |
/// Reads a given image resource into a WinForms icon. |
|
163 |
/// </summary> |
|
164 |
/// <param name="imageSource">Image source pointing to |
|
165 |
/// an icon file (*.ico).</param> |
|
166 |
/// <returns>An icon object that can be used with the |
|
167 |
/// taskbar area.</returns> |
|
168 |
public static Icon ToIcon(this ImageSource imageSource) |
|
169 |
{ |
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170 |
if (imageSource == null) return null; |
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|
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Uri uri = new Uri(imageSource.ToString()); |
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173 |
StreamResourceInfo streamInfo = Application.GetResourceStream(uri); |
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174 |
|
|
175 |
if (streamInfo == null) |
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{ |
|
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string msg = "The supplied image source '{0}' could not be resolved."; |
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msg = String.Format(msg, imageSource); |
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179 |
throw new ArgumentException(msg); |
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180 |
} |
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|
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return new Icon(streamInfo.Stream); |
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} |
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|
|
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#endregion |
|
186 |
|
|
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#region evaluate listings |
|
188 |
|
|
189 |
/// <summary> |
|
190 |
/// Checks a list of candidates for equality to a given |
|
191 |
/// reference value. |
|
192 |
/// </summary> |
|
193 |
/// <typeparam name="T"></typeparam> |
|
194 |
/// <param name="value">The evaluated value.</param> |
|
195 |
/// <param name="candidates">A liste of possible values that are |
|
196 |
/// regarded valid.</param> |
|
197 |
/// <returns>True if one of the submitted <paramref name="candidates"/> |
|
198 |
/// matches the evaluated value. If the <paramref name="candidates"/> |
|
199 |
/// parameter itself is null, too, the method returns false as well, |
|
200 |
/// which allows to check with null values, too.</returns> |
|
201 |
/// <exception cref="ArgumentNullException">If <paramref name="candidates"/> |
|
202 |
/// is a null reference.</exception> |
|
203 |
public static bool Is<T>(this T value, params T[] candidates) |
|
204 |
{ |
|
205 |
if (candidates == null) return false; |
|
206 |
|
|
207 |
foreach (var t in candidates) |
|
208 |
{ |
|
209 |
if (value.Equals(t)) return true; |
|
210 |
} |
|
211 |
|
|
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return false; |
|
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} |
|
214 |
|
|
215 |
#endregion |
|
216 |
|
|
217 |
#region match MouseEvent to PopupActivation |
|
218 |
|
|
219 |
/// <summary> |
|
220 |
/// Checks if a given <see cref="PopupActivationMode"/> is a match for |
|
221 |
/// an effectively pressed mouse button. |
|
222 |
/// </summary> |
|
223 |
public static bool IsMatch(this MouseEvent me, PopupActivationMode activationMode) |
|
224 |
{ |
|
225 |
switch (activationMode) |
|
226 |
{ |
|
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case PopupActivationMode.LeftClick: |
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228 |
return me == MouseEvent.IconLeftMouseUp; |
|
229 |
case PopupActivationMode.RightClick: |
|
230 |
return me == MouseEvent.IconRightMouseUp; |
|
231 |
case PopupActivationMode.LeftOrRightClick: |
|
232 |
return me.Is(MouseEvent.IconLeftMouseUp, MouseEvent.IconRightMouseUp); |
|
233 |
case PopupActivationMode.LeftOrDoubleClick: |
|
234 |
return me.Is(MouseEvent.IconLeftMouseUp, MouseEvent.IconDoubleClick); |
|
235 |
case PopupActivationMode.DoubleClick: |
|
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return me.Is(MouseEvent.IconDoubleClick); |
|
237 |
case PopupActivationMode.MiddleClick: |
|
238 |
return me == MouseEvent.IconMiddleMouseUp; |
|
239 |
case PopupActivationMode.All: |
|
240 |
//return true for everything except mouse movements |
|
241 |
return me != MouseEvent.MouseMove; |
|
242 |
default: |
|
243 |
throw new ArgumentOutOfRangeException("activationMode"); |
|
244 |
} |
|
245 |
} |
|
246 |
|
|
247 |
#endregion |
|
248 |
|
|
249 |
#region execute command |
|
250 |
|
|
251 |
/// <summary> |
|
252 |
/// Executes a given command if its <see cref="ICommand.CanExecute"/> method |
|
253 |
/// indicates it can run. |
|
254 |
/// </summary> |
|
255 |
/// <param name="command">The command to be executed, or a null reference.</param> |
|
256 |
/// <param name="commandParameter">An optional parameter that is associated with |
|
257 |
/// the command.</param> |
|
258 |
/// <param name="target">The target element on which to raise the command.</param> |
|
259 |
public static void ExecuteIfEnabled(this ICommand command, object commandParameter, IInputElement target) |
|
260 |
{ |
|
261 |
if (command == null) return; |
|
262 |
|
|
263 |
RoutedCommand rc = command as RoutedCommand; |
|
264 |
if (rc != null) |
|
265 |
{ |
|
266 |
//routed commands work on a target |
|
267 |
if (rc.CanExecute(commandParameter, target)) rc.Execute(commandParameter, target); |
|
268 |
} |
|
269 |
else if (command.CanExecute(commandParameter)) |
|
270 |
{ |
|
271 |
command.Execute(commandParameter); |
|
272 |
} |
|
273 |
} |
|
274 |
|
|
275 |
#endregion |
|
276 |
|
|
277 |
/// <summary> |
|
278 |
/// Returns a dispatcher for multi-threaded scenarios |
|
279 |
/// </summary> |
|
280 |
/// <returns></returns> |
|
281 |
internal static Dispatcher GetDispatcher(this DispatcherObject source) |
|
282 |
{ |
|
283 |
//use the application's dispatcher by default |
|
284 |
if (Application.Current != null) return Application.Current.Dispatcher; |
|
285 |
|
|
286 |
//fallback for WinForms environments |
|
287 |
if (source.Dispatcher != null) return source.Dispatcher; |
|
288 |
|
|
289 |
//ultimatively use the thread's dispatcher |
|
290 |
return Dispatcher.CurrentDispatcher; |
|
291 |
} |
|
292 |
|
|
293 |
|
|
294 |
/// <summary> |
|
295 |
/// Checks whether the <see cref="FrameworkElement.DataContextProperty"/> |
|
296 |
/// is bound or not. |
|
297 |
/// </summary> |
|
298 |
/// <param name="element">The element to be checked.</param> |
|
299 |
/// <returns>True if the data context property is being managed by a |
|
300 |
/// binding expression.</returns> |
|
301 |
/// <exception cref="ArgumentNullException">If <paramref name="element"/> |
|
302 |
/// is a null reference.</exception> |
|
303 |
public static bool IsDataContextDataBound(this FrameworkElement element) |
|
304 |
{ |
|
305 |
if (element == null) throw new ArgumentNullException("element"); |
|
306 |
return element.GetBindingExpression(FrameworkElement.DataContextProperty) != null; |
|
307 |
} |
|
306 | 308 |
} |
307 |
} |
|
308 | 309 |
} |
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