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https://github.com/eggplantlwj/VisionEdit.git
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344 lines
12 KiB
C#
344 lines
12 KiB
C#
// ***********************************************************************
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// Assembly : HZH_Controls
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// Created : 08-31-2019
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//
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// ***********************************************************************
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// <copyright file="UCRollText.cs">
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// Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
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// </copyright>
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//
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// Blog: https://www.cnblogs.com/bfyx
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// GitHub：https://github.com/kwwwvagaa/NetWinformControl
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// gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
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//
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// If you use this code, please keep this note.
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// ***********************************************************************
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.ComponentModel;
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namespace HZH_Controls.Controls
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{
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/// <summary>
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/// Class UCRollText.
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/// Implements the <see cref="System.Windows.Forms.UserControl" />
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/// </summary>
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/// <seealso cref="System.Windows.Forms.UserControl" />
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public class UCRollText : UserControl
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{
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/// <summary>
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/// 获取或设置控件显示的文字的字体。
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/// </summary>
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/// <value>The font.</value>
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/// <PermissionSet>
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/// <IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
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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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/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" />
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/// <IPermission class="System.Diagnostics.PerformanceCounterPermission, System, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
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/// </PermissionSet>
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public override Font Font
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{
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get
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{
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return base.Font;
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}
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set
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{
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base.Font = value;
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if (!string.IsNullOrEmpty(Text))
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{
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Graphics g = this.CreateGraphics();
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var size = g.MeasureString(Text, this.Font);
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rectText = new Rectangle(0, (this.Height - rectText.Height) / 2 + 1, (int)size.Width, (int)size.Height);
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rectText.Y = (this.Height - rectText.Height) / 2 + 1;
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}
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}
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}
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/// <summary>
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/// 获取或设置控件的前景色。
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/// </summary>
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/// <value>The color of the fore.</value>
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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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public override Color ForeColor
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{
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get
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{
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return base.ForeColor;
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}
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set
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{
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base.ForeColor = value;
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}
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}
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/// <summary>
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/// Gets or sets the text.
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/// </summary>
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/// <value>The text.</value>
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[Bindable(true)]
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[Browsable(true)]
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[DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
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[EditorBrowsable(EditorBrowsableState.Always)]
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public override string Text
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{
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get
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{
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return base.Text;
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}
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set
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{
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base.Text = value;
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if (!string.IsNullOrEmpty(value))
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{
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Graphics g = this.CreateGraphics();
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var size = g.MeasureString(value, this.Font);
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rectText = new Rectangle(0, (this.Height - rectText.Height) / 2 + 1, (int)size.Width, (int)size.Height);
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}
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else
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{
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rectText = Rectangle.Empty;
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}
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}
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}
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/// <summary>
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/// The roll style
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/// </summary>
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private RollStyle _RollStyle = RollStyle.LeftToRight;
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/// <summary>
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/// Gets or sets the roll style.
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/// </summary>
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/// <value>The roll style.</value>
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[Description("滚动样式"), Category("自定义")]
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public RollStyle RollStyle
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{
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get { return _RollStyle; }
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set
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{
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_RollStyle = value;
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switch (value)
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{
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case RollStyle.LeftToRight:
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m_intdirection = 1;
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break;
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case RollStyle.RightToLeft:
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m_intdirection = -1;
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break;
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}
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}
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}
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/// <summary>
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/// The move step
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/// </summary>
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private int _moveStep = 5;
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/// <summary>
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/// The move sleep time
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/// </summary>
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private int _moveSleepTime = 100;
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/// <summary>
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/// Gets or sets the move sleep time.
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/// </summary>
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/// <value>The move sleep time.</value>
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[Description("每次滚动间隔时间，越小速度越快"), Category("自定义")]
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public int MoveSleepTime
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{
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get { return _moveSleepTime; }
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set
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{
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if (value <= 0)
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return;
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_moveSleepTime = value;
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m_timer.Interval = value;
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}
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}
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/// <summary>
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/// The m intdirection
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/// </summary>
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int m_intdirection = 1;
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/// <summary>
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/// The rect text
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/// </summary>
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Rectangle rectText;
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/// <summary>
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/// The m timer
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/// </summary>
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Timer m_timer;
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/// <summary>
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/// Initializes a new instance of the <see cref="UCRollText" /> class.
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/// </summary>
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public UCRollText()
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{
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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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this.SetStyle(ControlStyles.Selectable, true);
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this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
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this.SetStyle(ControlStyles.UserPaint, true);
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this.SizeChanged += UCRollText_SizeChanged;
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this.Size = new Size(450, 30);
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Text = "滚动文字";
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m_timer = new Timer();
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m_timer.Interval = 100;
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m_timer.Tick += m_timer_Tick;
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this.Load += UCRollText_Load;
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this.VisibleChanged += UCRollText_VisibleChanged;
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this.ForeColor = Color.FromArgb(255, 77, 59);
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if (rectText != Rectangle.Empty)
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{
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rectText.Y = (this.Height - rectText.Height) / 2 + 1;
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}
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}
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/// <summary>
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/// Handles the Tick event of the m_timer control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
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void m_timer_Tick(object sender, EventArgs e)
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{
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if (rectText == Rectangle.Empty)
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return;
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if (_RollStyle == HZH_Controls.Controls.RollStyle.BackAndForth && rectText.Width >= this.Width)
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{
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return;
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}
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rectText.X = rectText.X + _moveStep * m_intdirection;
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if (_RollStyle == HZH_Controls.Controls.RollStyle.BackAndForth)
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{
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if (rectText.X <= 0)
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{
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m_intdirection = 1;
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}
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else if (rectText.Right >= this.Width)
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{
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m_intdirection = -1;
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}
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}
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else if (_RollStyle == HZH_Controls.Controls.RollStyle.LeftToRight)
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{
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if (rectText.X > this.Width)
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{
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rectText.X = -1 * rectText.Width - 1;
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}
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}
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else
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{
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if (rectText.Right < 0)
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{
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rectText.X = this.Width + rectText.Width + 1;
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}
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}
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Refresh();
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}
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/// <summary>
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/// Handles the VisibleChanged event of the UCRollText control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
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void UCRollText_VisibleChanged(object sender, EventArgs e)
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{
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m_timer.Enabled = this.Visible;
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}
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/// <summary>
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/// Handles the Load event of the UCRollText control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
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void UCRollText_Load(object sender, EventArgs e)
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{
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if (_RollStyle == HZH_Controls.Controls.RollStyle.LeftToRight)
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{
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m_intdirection = 1;
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if (rectText != Rectangle.Empty)
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{
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rectText.X = -1 * rectText.Width - 1;
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}
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}
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else if (_RollStyle == HZH_Controls.Controls.RollStyle.RightToLeft)
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{
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m_intdirection = -1;
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if (rectText != Rectangle.Empty)
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{
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rectText.X = this.Width + rectText.Width + 1;
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}
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}
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else
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{
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m_intdirection = 1;
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if (rectText != Rectangle.Empty)
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{
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rectText.X = 0;
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}
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}
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if (rectText != Rectangle.Empty)
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{
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rectText.Y = (this.Height - rectText.Height) / 2 + 1;
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}
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}
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/// <summary>
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/// Handles the SizeChanged event of the UCRollText control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
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void UCRollText_SizeChanged(object sender, EventArgs e)
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{
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if (rectText != Rectangle.Empty)
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{
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rectText.Y = (this.Height - rectText.Height) / 2 + 1;
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}
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}
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/// <summary>
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/// 引发 <see cref="E:System.Windows.Forms.Control.Paint" /> 事件。
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/// </summary>
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/// <param name="e">包含事件数据的 <see cref="T:System.Windows.Forms.PaintEventArgs" />。</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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if (rectText != Rectangle.Empty)
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{
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e.Graphics.SetGDIHigh();
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e.Graphics.DrawString(Text, Font, new SolidBrush(ForeColor), rectText.Location);
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}
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}
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}
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/// <summary>
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/// Enum RollStyle
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/// </summary>
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public enum RollStyle
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{
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/// <summary>
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/// The left to right
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/// </summary>
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LeftToRight,
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/// <summary>
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/// The right to left
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/// </summary>
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RightToLeft,
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/// <summary>
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/// The back and forth
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/// </summary>
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BackAndForth
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}
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}
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