添加项目文件。
This commit is contained in:
liming 蔡
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using System;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Drawing.Text;
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using System.Windows.Forms;
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namespace JYControl
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{
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public partial class PulseButton : Button
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{
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#region -- Members --
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private readonly Timer pulseTimer;
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private RectangleF[] pulses;
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private RectangleF centerRect;
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private Color[] pulseColors;
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private int pulseWidth;
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private bool mouseOver;
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private bool pressed;
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private float pulseSpeed;
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public enum Shape
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{
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Round,
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Rectangle
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}
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#endregion
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#region -- Properties --
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/// <summary>
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/// Gets or sets the top button color.
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/// </summary>
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/// <value>The top button color.</value>
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[Browsable(true), DefaultValue(typeof(Color), "CornflowerBlue")]
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[Category("Appearance")]
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public Color ButtonColorTop { get; set; }
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/// <summary>
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/// Gets or sets the bottom button color.
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/// </summary>
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/// <value>The bottom button color.</value>
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[Browsable(true), DefaultValue(typeof(Color), "DodgerBlue")]
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[Category("Appearance")]
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public Color ButtonColorBottom { get; set; }
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/// <summary>
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/// Gets or sets the color of the pulse.
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/// </summary>
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/// <value>The color of the pulse.</value>
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[Browsable(true), DefaultValue(typeof(Color), "Black")]
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[Category("Appearance")]
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public Color PulseColor { get; set; }
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/// <summary>
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/// Gets or sets the type of the shape.
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/// </summary>
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/// <value>The type of the shape.</value>
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[Browsable(true), DefaultValue(typeof(Shape), "Round")]
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[Category("Appearance")]
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public Shape ShapeType { get; set; }
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/// <summary>
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/// Gets or sets the corner radius.
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/// </summary>
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/// <value>The corner radius.</value>
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[Browsable(true), DefaultValue(10)]
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[Category("Appearance")]
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public int CornerRadius { get; set; }
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/// <summary>
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/// Gets or sets the color of the focus.
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/// </summary>
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/// <value>The color of the focus.</value>
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[Browsable(true), DefaultValue(typeof(Color), "Orange")]
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[Category("Appearance")]
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public Color FocusColor { get; set; }
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/// <summary>
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/// Gets or sets the foreground color of the control.
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/// </summary>
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/// <value></value>
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/// <returns>
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/// The foreground <see cref="T:System.Drawing.Color"/> of the control. The default is the value of the <see cref="P:System.Windows.Forms.Control.DefaultForeColor"/> property.
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/// </returns>
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/// <PermissionSet>
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/// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true"/>
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/// </PermissionSet>
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[Browsable(true), DefaultValue(typeof(Color), "White")]
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[Category("Appearance")]
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public new Color ForeColor
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{
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get { return base.ForeColor; }
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set { base.ForeColor = value; }
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}
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/// <summary>
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/// Gets or sets the number of pulses.
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/// </summary>
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/// <value>The number of pulses.</value>
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[Browsable(true), DefaultValue(3)]
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[Category("Appearance")]
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public int NumberOfPulses
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{
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get { return pulses.Length; }
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set
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{
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if (value <= 0) return;
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pulses = new RectangleF[value];
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pulseColors = new Color[value];
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ArrangePulses();
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}
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}
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/// <summary>
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/// Gets or sets the width of the pulse.
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/// </summary>
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/// <value>The width of the pulse.</value>
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[Browsable(true), DefaultValue(10)]
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[Category("Appearance")]
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public int PulseWidth
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{
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get { return pulseWidth; }
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set { pulseWidth = value; ArrangePulses(); }
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}
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/// <summary>
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/// Gets or sets the wave speed.
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/// </summary>
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/// <value>The speed of the pulses.</value>
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[Browsable(true), DefaultValue(typeof(float), "0.3f")]
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[Category("Appearance")]
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public float PulseSpeed
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{
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get { return pulseSpeed; }
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set
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{
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if (value <= 0) return;
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pulseSpeed = value;
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}
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}
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/// <summary>
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/// Gets or sets the interval.
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/// </summary>
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/// <value>The interval.</value>
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[Browsable(false), DefaultValue(50)]
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public int Interval
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{
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get { return pulseTimer.Interval; }
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set { pulseTimer.Interval = value; }
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}
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#endregion
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#region -- Constructor --
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/// <summary>
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/// Initializes a new instance of the <see cref="PulseButton"/> class.
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/// </summary>
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public PulseButton()
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{
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// Control styles
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SetStyle(ControlStyles.SupportsTransparentBackColor, true);
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SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
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SetStyle(ControlStyles.AllPaintingInWmPaint, true);
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SetStyle(ControlStyles.ResizeRedraw, true);
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SetStyle(ControlStyles.UserPaint, true);
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InitializeComponent();
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// Layout & initialization
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SuspendLayout();
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pulseWidth = 10;
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PulseSpeed = .3f;
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ButtonColorTop = Color.CornflowerBlue;
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ButtonColorBottom = Color.DodgerBlue;
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FocusColor = Color.Orange;
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PulseColor = Color.Black;
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ShapeType = Shape.Round;
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CornerRadius = 10;
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Image = null;
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base.TextAlign = ContentAlignment.MiddleCenter;
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Size = new Size(40, 40);
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// Timer
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pulseTimer = new Timer { Interval = 50 };
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pulseTimer.Tick += PulseTimerTick;
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pulses = new RectangleF[3];
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pulseColors = new Color[3];
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ArrangePulses();
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pulseTimer.Enabled = true;
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ResumeLayout(true);
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}
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#endregion
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#region -- EventHandlers --
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/// <summary>
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/// Handles the pulse timer tick.
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/// </summary>
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/// <param name="sender">The sender.</param>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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private void PulseTimerTick(object sender, EventArgs e)
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{
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pulseTimer.Enabled = false;
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InflatePulses();
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Invalidate();
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pulseTimer.Enabled = true;
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}
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#endregion
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#region -- Protected overrides --
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#region - Mouse -
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/// <summary>
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/// Raises the <see cref="E:System.Windows.Forms.Control.MouseUp"/> event.
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/// </summary>
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/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs"/> that contains the event data.</param>
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protected override void OnMouseUp(MouseEventArgs e)
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{
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base.OnMouseUp(e);
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if (e.Button != MouseButtons.Left) return;
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pressed = false;
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}
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/// <summary>
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/// Raises the <see cref="E:System.Windows.Forms.Control.MouseDown"/> event.
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/// </summary>
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/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs"/> that contains the event data.</param>
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protected override void OnMouseDown(MouseEventArgs e)
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{
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base.OnMouseDown(e);
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if (e.Button != MouseButtons.Left) return;
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pressed = true;
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}
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/// <summary>
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/// Raises the <see cref="M:System.Windows.Forms.Control.OnMouseMove(System.Windows.Forms.MouseEventArgs)"/> event.
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/// </summary>
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/// <param name="mevent">A <see cref="T:System.Windows.Forms.MouseEventArgs"/> that contains the event data.</param>
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protected override void OnMouseMove(MouseEventArgs mevent)
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{
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base.OnMouseMove(mevent);
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mouseOver = centerRect.Contains(mevent.Location);
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}
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/// <summary>
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/// Raises the <see cref="JYControl.OnMouseLeave"/> event.
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/// </summary>
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/// <param name="e">A <see cref="EventArgs"/> that contains the event data.</param>
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protected override void OnMouseLeave(EventArgs e)
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{
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base.OnMouseLeave(e);
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mouseOver = false;
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pressed = false;
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}
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#endregion
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/// <summary>
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/// Raises the <see cref="E:System.Windows.Forms.Control.EnabledChanged"/> event.
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/// </summary>
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/// <param name="e">An <see cref="T:System.EventArgs"/> that contains the event data.</param>
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protected override void OnEnabledChanged(EventArgs e)
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{
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base.OnEnabledChanged(e);
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pulseTimer.Enabled = Enabled;
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}
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/// <summary>
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/// Raises the <see cref="E:System.Windows.Forms.Control.Resize"/> event.
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/// </summary>
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/// <param name="e">An <see cref="T:System.EventArgs"/> that contains the event data.</param>
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protected override void OnResize(EventArgs e)
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{
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base.OnResize(e);
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if (pulses == null || pulses.Length == 0) return;
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ArrangePulses();
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}
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/// <summary>
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/// Raises the <see cref="E:System.Windows.Forms.Control.Paint"/> event.
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/// </summary>
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/// <param name="e">A <see cref="T:System.Windows.Forms.PaintEventArgs"/> that contains the event data.</param>
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protected override void OnPaint(PaintEventArgs e)
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{
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//base.OnPaint(e);
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base.OnPaintBackground(e);
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// Set Graphics interpolation and smoothing
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Graphics g = e.Graphics;
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g.InterpolationMode = InterpolationMode.HighQualityBicubic;
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g.SmoothingMode = SmoothingMode.AntiAlias;
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// Draw pulses
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DrawPulses(g);
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if (centerRect.IsEmpty) return;
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// Draw center
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DrawCenter(g);
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// Draw border
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DrawBorder(g);
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// Image
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if (Image != null)
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g.DrawImage(Image, centerRect);
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// Draw highlight
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if (mouseOver)
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DrawHighLight(g);
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// Reflex
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if (!pressed) DrawReflex(g);
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// Text
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DrawText(g);
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}
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#endregion
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#region -- Protected virtual methods --
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/// <summary>
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/// Draws the border.
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/// </summary>
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/// <param name="g">The graphics object</param>
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protected virtual void DrawBorder(Graphics g)
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{
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using (var pen = new Pen(!Focused ? Color.FromArgb(60, Color.Black) : FocusColor, 2))
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PaintShape(g, pen, centerRect);
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}
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/// <summary>
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/// Draws the center.
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/// </summary>
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/// <param name="g">The graphics object</param>
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protected virtual void DrawCenter(Graphics g)
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{
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if (Enabled)
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{
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using (var lgb = new LinearGradientBrush(centerRect, ButtonColorTop, ButtonColorBottom,
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LinearGradientMode.Vertical))
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{
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PaintShape(g, lgb, centerRect);
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}
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}
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else
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{
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using (var lgb = new SolidBrush(Color.Gray))
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PaintShape(g, lgb, centerRect);
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}
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}
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/// <summary>
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/// Draws the pulses.
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/// </summary>
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/// <param name="g">The graphics object</param>
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protected virtual void DrawPulses(Graphics g)
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{
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if (!Enabled) return;
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for (var i = 0; i < pulses.Length; i++)
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{
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using (var sb = new SolidBrush(pulseColors[i]))
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{
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PaintShape(g, sb, pulses[i]);
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}
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}
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}
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/// <summary>
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/// Draws the text.
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/// </summary>
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/// <param name="g">The graphics object</param>
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protected virtual void DrawText(Graphics g)
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{
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var format = new StringFormat(StringFormat.GenericDefault) { Trimming = StringTrimming.EllipsisCharacter };
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format.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces;
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format.FormatFlags ^= StringFormatFlags.LineLimit;
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format.HotkeyPrefix = HotkeyPrefix.Show;
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SizeF size = g.MeasureString(Text, Font, new SizeF(centerRect.Width, centerRect.Height), format);
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RectangleF textRect = GetAlignPlacement(TextAlign, centerRect, size);
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using (var sb = new SolidBrush(ForeColor))
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g.DrawString(Text, Font, sb, textRect, format);
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}
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/// <summary>
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/// Draws the reflex.
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/// </summary>
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/// <param name="g">The graphics object</param>
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protected virtual void DrawReflex(Graphics g)
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{
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using (var path = new GraphicsPath())
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{
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RectangleF rect = centerRect;
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rect.Height = rect.Height / 2;
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if (ShapeType == Shape.Round)
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{
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path.AddArc(centerRect, -180, 180);
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RectangleF reflexRectangle = rect;
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reflexRectangle.Offset(0, rect.Height);
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reflexRectangle.Height /= 6;
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path.AddArc(reflexRectangle, 0, 180);
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path.CloseFigure();
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}
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else
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{
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rect.Height += rect.Height / 6;
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path.AddRectangle(rect);
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}
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RectangleF area = path.GetBounds();
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using (var lgb = new LinearGradientBrush(area, Color.FromArgb(30, Color.White),
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Color.FromArgb(60, Color.White), -90))
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{
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g.FillPath(lgb, path);
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}
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}
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}
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/// <summary>
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/// Draws the high light.
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/// </summary>
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/// <param name="g">The graphics object</param>
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protected virtual void DrawHighLight(Graphics g)
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{
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RectangleF highlightRect = centerRect;
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highlightRect.Inflate(-2, -2);
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using (var pen = new Pen(Color.FromArgb(60, Color.White), 4))
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{
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if (ShapeType == Shape.Round)
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g.DrawEllipse(pen, highlightRect);
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else
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g.DrawPath(pen, GetRoundRect(g, highlightRect, CornerRadius));
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}
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}
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/// <summary>
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/// Paints the shape.
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/// </summary>
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/// <param name="g">The graphics object</param>
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/// <param name="p">The pen</param>
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/// <param name="rectangle">The rectangle.</param>
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protected virtual void PaintShape(Graphics g, Pen p, RectangleF rectangle)
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{
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if (ShapeType == Shape.Round)
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g.DrawEllipse(p, rectangle);
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else
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using (var path = GetRoundRect(g, rectangle, CornerRadius))
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g.DrawPath(p, path);
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}
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/// <summary>
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/// Paints the shape.
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/// </summary>
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/// <param name="g">The graphics object</param>
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/// <param name="b">The brush</param>
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/// <param name="rectangle">The rectangle.</param>
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protected virtual void PaintShape(Graphics g, Brush b, RectangleF rectangle)
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{
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if (ShapeType == Shape.Round)
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g.FillEllipse(b, rectangle);
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else
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using (var path = GetRoundRect(g, rectangle, CornerRadius))
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g.FillPath(b, path);
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}
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#endregion
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#region -- Public static methods --
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/// <summary>
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/// Gets a path of a rectangle with round corners.
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/// </summary>
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/// <param name="g">The graphics object</param>
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/// <param name="rect">The rectangle</param>
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/// <param name="radius">The corner radius</param>
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/// <returns></returns>
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public static GraphicsPath GetRoundRect(Graphics g, RectangleF rect, float radius)
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{
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var gp = new GraphicsPath();
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var diameter = radius * 2;
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gp.AddArc(rect.X + rect.Width - diameter, rect.Y, diameter, diameter, 270, 90);
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gp.AddArc(rect.X + rect.Width - diameter, rect.Y + rect.Height - diameter, diameter, diameter, 0, 90);
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gp.AddArc(rect.X, rect.Y + rect.Height - diameter, diameter, diameter, 90, 90);
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gp.AddArc(rect.X, rect.Y, diameter, diameter, 180, 90);
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gp.CloseFigure();
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return gp;
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}
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/// <summary>
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||||
/// Gets the placement.
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||||
/// </summary>
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||||
/// <param name="align">The alignment of the element</param>
|
||||
/// <param name="rect">A retangle</param>
|
||||
/// <param name="element">The element to be placed</param>
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||||
/// <returns></returns>
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||||
public static RectangleF GetAlignPlacement(ContentAlignment align, RectangleF rect, SizeF element)
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||||
{
|
||||
// Left & Top (default)
|
||||
float lft = rect.Left;
|
||||
float top = rect.Y;
|
||||
// Right
|
||||
if ((align & (ContentAlignment.BottomRight | ContentAlignment.MiddleRight | ContentAlignment.TopRight)) != 0)
|
||||
lft = rect.Right - element.Width;
|
||||
// Center
|
||||
else if ((align & (ContentAlignment.BottomCenter | ContentAlignment.MiddleCenter | ContentAlignment.TopCenter)) != 0)
|
||||
lft = (rect.Width / 2) - (element.Width / 2) + rect.Left;
|
||||
// Bottom
|
||||
if ((align & (ContentAlignment.BottomCenter | ContentAlignment.BottomLeft | ContentAlignment.BottomRight)) != 0)
|
||||
top = rect.Bottom - element.Height;
|
||||
// Middle
|
||||
else if ((align & (ContentAlignment.MiddleCenter | ContentAlignment.MiddleLeft | ContentAlignment.MiddleRight)) != 0)
|
||||
top = (rect.Height / 2) - (element.Height / 2) + rect.Y;
|
||||
|
||||
return new RectangleF(lft, top, element.Width, element.Height);
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region -- Private methods --
|
||||
|
||||
/// <summary>
|
||||
/// Arranges the pulses.
|
||||
/// </summary>
|
||||
private void ArrangePulses()
|
||||
{
|
||||
centerRect = new RectangleF(pulseWidth, pulseWidth, Width - 2 * pulseWidth, Height - 2 * pulseWidth);
|
||||
for (var i = 1; i <= pulses.Length; i++)
|
||||
{
|
||||
pulses[i - 1] = new RectangleF(
|
||||
pulseWidth * i / (float)pulses.Length,
|
||||
pulseWidth * i / (float)pulses.Length,
|
||||
Width - 2 * pulseWidth * i / pulses.Length,
|
||||
Height - 2 * pulseWidth * i / pulses.Length
|
||||
);
|
||||
pulseColors[i - 1] = Color.FromArgb((int)(Math.Min(pulses[i - 1].X * 255 / pulseWidth, 255)), Color.White);
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Inflates the pulses.
|
||||
/// </summary>
|
||||
private void InflatePulses()
|
||||
{
|
||||
for (var i = 0; i < pulses.Length; i++)
|
||||
{
|
||||
pulses[i].Inflate(PulseSpeed, PulseSpeed);
|
||||
if (pulses[i].Width > Width || pulses[i].Height > Height || pulses[i].X < 0 || pulses[i].Y < 0)
|
||||
pulses[i] = new RectangleF(pulseWidth, pulseWidth, Width - 2 * pulseWidth, Height - 2 * pulseWidth);
|
||||
pulseColors[i] = Color.FromArgb((int)(Math.Min(pulses[i].X * 255 / pulseWidth, 255)), PulseColor);
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user