265 lines
8.7 KiB
C#
265 lines
8.7 KiB
C#
/******************************************************************************
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* SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
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* CopyRight (C) 2012-2024 ShenYongHua(沈永华).
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* QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
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*
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* Blog: https://www.cnblogs.com/yhuse
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* Gitee: https://gitee.com/yhuse/SunnyUI
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* GitHub: https://github.com/yhuse/SunnyUI
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*
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* SunnyUI.dll can be used for free under the GPL-3.0 license.
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* If you use this code, please keep this note.
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* 如果您使用此代码，请保留此说明。
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******************************************************************************
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* 文件名称: UICheckBox.cs
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* 文件说明: 复选框
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* 当前版本: V3.1
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* 创建日期: 2020-01-01
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*
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* 2020-01-01: V2.2.0 增加文件说明
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* 2020-04-16: V2.2.1 增加ReadOnly属性
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* 2020-04-25: V2.2.4 更新主题配置类
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* 2021-04-26: V3.0.3 增加默认事件CheckedChanged
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* 2022-03-19: V3.1.1 重构主题配色
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* 2023-05-12: V3.3.6 重构DrawString函数
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* 2023-11-07: V3.5.2 增加修改图标大小
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* 2023-12-04: V3.6.1 增加属性可修改图标大小
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* 2024-08-26: V3.6.9 修复AutoSize在文字改变时未自动显示的问题，#IAKYX4
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* 2024-08-30: V3.7.0 修改AutoSize属性可以保存在Design.cs文件里面，#IAKYX4
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******************************************************************************/
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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.Windows.Forms;
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namespace Sunny.UI
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{
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/// <summary>
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/// 复选框
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/// </summary>
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[DefaultEvent("CheckedChanged")]
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[DefaultProperty("Checked")]
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[ToolboxItem(true)]
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public class UICheckBox : UIControl
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{
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/// <summary>
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/// 构造函数
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/// </summary>
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public UICheckBox()
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{
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SetStyleFlags();
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base.Cursor = Cursors.Hand;
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ShowRect = false;
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Size = new Size(150, 29);
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SetStyle(ControlStyles.StandardDoubleClick, UseDoubleClick);
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ForeColor = UIStyles.Blue.CheckBoxForeColor;
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fillColor = UIStyles.Blue.CheckBoxColor;
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}
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/// <summary>
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/// 重载绘图
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/// </summary>
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/// <param name="e">绘图参数</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 (AutoSize && Dock == DockStyle.None)
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{
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Size sf = TextRenderer.MeasureText(Text, Font);
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int w = sf.Width + CheckBoxSize + 7;
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int h = Math.Max(CheckBoxSize, sf.Height) + 5;
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if (Width != w) Width = w;
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if (Height != h) Height = h;
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}
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}
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/// <inheritdoc/>
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[Browsable(true)]
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[DefaultValue(false)]
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[DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
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[EditorBrowsable(EditorBrowsableState.Always)]
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[Localizable(true)]
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[RefreshProperties(RefreshProperties.All)]
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public override bool AutoSize
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{
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get => base.AutoSize;
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set
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{
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base.AutoSize = value;
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Invalidate();
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}
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}
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/// <summary>
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/// 值改变事件
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/// </summary>
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/// <param name="sender">控件</param>
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/// <param name="value">值</param>
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public delegate void OnValueChanged(object sender, bool value);
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/// <summary>
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/// 值改变事件
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/// </summary>
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public event OnValueChanged ValueChanged;
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private int _imageSize = 16;
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private int _imageInterval = 3;
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[DefaultValue(16)]
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[Description("图标大小"), Category("SunnyUI")]
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[Browsable(true)]
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public int CheckBoxSize
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{
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get => _imageSize;
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set
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{
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_imageSize = Math.Max(value, 16);
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_imageSize = Math.Min(value, 64);
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Invalidate();
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}
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}
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/// <summary>
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/// 是否只读
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/// </summary>
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[DefaultValue(false)]
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[Description("是否只读"), Category("SunnyUI")]
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public bool ReadOnly { get; set; }
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/// <summary>
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/// 图标与文字之间间隔
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/// </summary>
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[DefaultValue(3)]
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[Description("图标与文字之间间隔"), Category("SunnyUI")]
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public int ImageInterval
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{
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get => _imageInterval;
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set
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{
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_imageInterval = Math.Max(1, value);
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Invalidate();
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}
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}
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private bool _checked;
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/// <summary>
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/// 是否选中
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/// </summary>
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[Description("是否选中"), Category("SunnyUI")]
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[DefaultValue(false)]
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public bool Checked
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{
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get => _checked;
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set
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{
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if (_checked != value)
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{
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_checked = value;
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ValueChanged?.Invoke(this, _checked);
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CheckedChanged?.Invoke(this, new EventArgs());
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}
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Invalidate();
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}
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}
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/// <summary>
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/// 值改变事件
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/// </summary>
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public event EventHandler CheckedChanged;
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/// <summary>
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/// 绘制前景颜色
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/// </summary>
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/// <param name="g">绘图图面</param>
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/// <param name="path">绘图路径</param>
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protected override void OnPaintFore(Graphics g, GraphicsPath path)
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{
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//填充文字
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Color color = ForeColor;
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color = Enabled ? color : UIDisableColor.Fore;
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Rectangle rect = new Rectangle(_imageSize + _imageInterval * 2, 0, Width - _imageSize + _imageInterval * 2, Height);
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g.DrawString(Text, Font, color, rect, ContentAlignment.MiddleLeft);
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}
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/// <summary>
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/// 绘制填充颜色
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/// </summary>
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/// <param name="g">绘图图面</param>
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/// <param name="path">绘图路径</param>
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protected override void OnPaintFill(Graphics g, GraphicsPath path)
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{
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int ImageSize = CheckBoxSize;
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//图标
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float top = (Height - ImageSize) / 2.0f;
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float left = Text.IsValid() ? ImageInterval : (Width - ImageSize) / 2.0f;
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Color color = Enabled ? fillColor : foreDisableColor;
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if (Checked)
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{
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g.FillRoundRectangle(color, new Rectangle((int)left, (int)top, ImageSize, ImageSize), 1);
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color = BackColor.IsValid() ? BackColor : Color.White;
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Point pt2 = new Point((int)(left + ImageSize * 2 / 5.0f), (int)(top + ImageSize * 3 / 4.0f) - (ImageSize.Div(10)));
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Point pt1 = new Point((int)left + 2 + ImageSize.Div(10), pt2.Y - (pt2.X - 2 - ImageSize.Div(10) - (int)left));
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Point pt3 = new Point((int)left + ImageSize - 2 - ImageSize.Div(10), pt2.Y - (ImageSize - pt2.X - 2 - ImageSize.Div(10)) - (int)left);
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PointF[] CheckMarkLine = { pt1, pt2, pt3 };
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using Pen pn = new Pen(color, 2);
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g.SetHighQuality();
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g.DrawLines(pn, CheckMarkLine);
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g.SetDefaultQuality();
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}
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else
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{
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using Pen pn = new Pen(color, 1);
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g.DrawRoundRectangle(pn, new Rectangle((int)left + 1, (int)top + 1, ImageSize - 2, ImageSize - 2), 1);
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g.DrawRectangle(pn, new Rectangle((int)left + 2, (int)top + 2, ImageSize - 4, ImageSize - 4));
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}
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}
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/// <summary>
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/// 点击事件
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/// </summary>
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/// <param name="e">参数</param>
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protected override void OnClick(EventArgs e)
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{
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if (!ReadOnly)
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{
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Checked = !Checked;
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}
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base.OnClick(e);
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}
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/// <summary>
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/// 设置主题样式
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/// </summary>
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/// <param name="uiColor">主题样式</param>
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public override void SetStyleColor(UIBaseStyle uiColor)
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{
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base.SetStyleColor(uiColor);
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fillColor = uiColor.CheckBoxColor;
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ForeColor = uiColor.CheckBoxForeColor;
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}
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/// <summary>
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/// 填充颜色，当值为背景色或透明色或空值则不填充
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/// </summary>
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[Description("填充颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "80, 160, 255")]
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public Color CheckBoxColor
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{
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get => fillColor;
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set => SetFillColor(value);
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}
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protected override void OnTextChanged(EventArgs e)
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{
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base.OnTextChanged(e);
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Invalidate();
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}
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}
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} |