Initial project's source code check-in.
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// Copyright (c) 2011, Outercurve Foundation.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// - Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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//
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// - Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// - Neither the name of the Outercurve Foundation nor the names of its
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// contributors may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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using System.Windows.Forms;
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using System.Threading;
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namespace WebsitePanel.Import.Enterprise
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{
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/// <summary>
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/// Animated Icon.
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/// </summary>
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[ToolboxItem(true)]
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public class AnimatedIcon : System.Windows.Forms.UserControl
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{
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private Thread thread = null;
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//private ImageList imageList = null;
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private List<Image> images;
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private int currentFrame = 0;
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private int delayInterval = 50;
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private int pause = 0;
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private int loopCount = 0;
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private int currentLoop = 0;
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private int firstFrame = 0;
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private int lastFrame = 0;
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private System.ComponentModel.Container components = null;
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/// <summary>Gets the <see cref="List"/> that contains
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/// the <see cref="Image"/> objects used to display animation.</summary>
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/// <value>The <see cref="List"/> that contains the <see cref="Image"/>
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/// objects used to display animated frames.</value>
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[Browsable(false)]
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public List<Image> Images
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{
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get
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{
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return images;
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}
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}
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/// <summary>Gets or sets delay in milliseconds between the frames.</summary>
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/// <value>The default value is 50 milliseconds.</value>
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[Category("Animated Icon")]
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[DefaultValue(50), Description("Delay in milliseconds between the frames.")]
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public int Delay
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{
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get { return delayInterval; }
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set
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{
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if( value != delayInterval )
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{
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delayInterval = Math.Abs( value );
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}
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}
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}
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/// <summary>Gets or sets pause in milliseconds after every loop.</summary>
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/// <value>The default value is 0 milliseconds.</value>
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[Category("Animated Icon")]
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[DefaultValue(0), Description("Pause in milliseconds after the loop ends.")]
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public int Pause
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{
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get { return pause; }
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set
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{
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if( value != pause )
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{
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pause = Math.Abs( value );
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}
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}
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}
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/// <summary>Gets or sets loop counter.</summary>
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/// <value>The default value is 0, i.e. infinitive loop.</value>
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[Category("Animated Icon")]
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[DefaultValue(0), Description("Loop counter. 0 means infinitive loop.")]
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public int LoopCount
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{
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get { return loopCount; }
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set
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{
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if( value != loopCount )
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{
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loopCount = Math.Abs( value );
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}
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}
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}
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/// <summary>Gets or sets the first frame of the animation.</summary>
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/// <value>The default value is 0.</value>
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[Category("Animated Icon")]
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[DefaultValue(0), Description("First frame of the animation.")]
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public int FirstFrame
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{
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get { return firstFrame; }
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set
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{
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if( value != firstFrame )
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{
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firstFrame = Math.Abs( value );
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}
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}
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}
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/// <summary>Gets or sets the last frame of the animation.</summary>
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/// <value>The default value is 0.</value>
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[Category("Animated Icon")]
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[DefaultValue(0), Description("Last frame of the animation.")]
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public int LastFrame
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{
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get { return lastFrame; }
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set
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{
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if( value != lastFrame )
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{
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lastFrame = Math.Abs( value );
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}
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}
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}
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/// <summary>Initializes a new instance of the <b>AnimatedIcon</b> class.
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/// </summary>
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public AnimatedIcon()
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{
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CheckForIllegalCrossThreadCalls = false;
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InitializeComponent();
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images = new List<Image>();
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this.SetStyle(ControlStyles.UserPaint, true);
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this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
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this.SetStyle(ControlStyles.DoubleBuffer, true);
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this.SetStyle(ControlStyles.ResizeRedraw, true);
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}
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#region Dispose
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/// <summary>Clean up any resources being used.</summary>
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/// <param name="disposing"><see langword="true"/> to release both managed
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/// and unmanaged resources; <see langword="false"/> to release
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/// only unmanaged resources.</param>
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protected override void Dispose( bool disposing )
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{
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if( disposing )
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{
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if( components != null )
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components.Dispose();
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if( thread != null )
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thread.Abort();
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}
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base.Dispose( disposing );
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}
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#endregion
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#region Component Designer generated code
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/// <summary>Required method for Designer support - do not modify
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/// the contents of this method with the code editor.
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/// </summary>
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private void InitializeComponent()
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{
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//
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// AnimatedIcon
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//
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this.Name = "AnimatedIcon";
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this.Size = new System.Drawing.Size(16, 16);
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}
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#endregion
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/// <summary>Starts animation from the beginning.
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/// </summary>
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public void StartAnimation()
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{
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StopAnimation();
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CheckRange(); // Check the first and the last frames
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thread = new Thread( new ThreadStart( threadFunc ) );
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thread.IsBackground = true;
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thread.Start();
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}
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/// <summary>Stops animation not changing current frame number.
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/// </summary>
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public void StopAnimation()
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{
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if( thread != null )
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{
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thread.Abort();
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thread = null;
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}
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currentLoop = 0;
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}
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/// <summary>Displays the specified frame.</summary>
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/// <param name="frame">An index of the image stored in the <see cref="ImageList"/>.</param>
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public void ShowFrame(int frame)
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{
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StopAnimation();
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if( frame >= 0 && frame < images.Count )
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currentFrame = frame;
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else
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currentFrame = 0;
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Refresh();
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}
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/// <summary>Occurs when the control is redrawn.</summary>
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/// <param name="e">A <see cref="PaintEventArgs"/> that contains
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/// the event data.</param>
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/// <remarks>The <b>OnPaint</b> method draws current image from
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/// the <see cref="ImageList"/> if exists.</remarks>
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protected override void OnPaint(PaintEventArgs e)
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{
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// Draw a crossed rectangle if there is no frame to display
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if( images == null ||
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currentFrame < 0 ||
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currentFrame >= images.Count )
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{
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if( this.Size.Width == 0 || this.Size.Height == 0 )
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return;
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Pen pen = new Pen( SystemColors.ControlText );
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e.Graphics.DrawRectangle( pen, 0, 0, this.Size.Width-1, this.Size.Height-1 );
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e.Graphics.DrawLine( pen, 0, 0, this.Size.Width, this.Size.Height );
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e.Graphics.DrawLine( pen, 0, this.Size.Height-1, this.Size.Width-1, 0 );
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pen.Dispose();
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}
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else
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{
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// Draw the current frame
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e.Graphics.DrawImage( images[currentFrame], 0, 0, this.Size.Width, this.Size.Height );
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}
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}
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/// <summary>The method to be invoked when the thread begins executing.
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/// </summary>
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private void threadFunc()
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{
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bool wasPause = false;
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currentFrame = firstFrame;
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while( thread != null && thread.IsAlive )
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{
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Refresh(); // Redraw the current frame
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wasPause = false;
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if( images != null )
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{
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currentFrame++;
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if( currentFrame > lastFrame ||
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currentFrame >= images.Count )
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{
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if( pause > 0 ) // Sleep after every loop
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{
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Thread.Sleep( pause );
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wasPause = true;
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}
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currentFrame = firstFrame;
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if( loopCount != 0 ) // 0 is infinitive loop
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{
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currentLoop++;
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}
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}
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if( loopCount != 0 && currentLoop >= loopCount )
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{
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StopAnimation(); // The loop is completed
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}
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}
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if( !wasPause ) // That prevents summation (pause + delayInterval)
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Thread.Sleep( delayInterval );
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}
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}
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/// <summary>Check if the last frame is no less than the first one.
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/// Otherwise, swap them.</summary>
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private void CheckRange()
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{
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if( lastFrame < firstFrame )
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{
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int tmp = firstFrame;
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firstFrame = lastFrame;
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lastFrame = tmp;
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}
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}
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}
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}
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