266 lines
8.3 KiB
C#
266 lines
8.3 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) 2012-2021 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: UISymbolLabel.cs
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* 文件说明: 带字体图标的标签
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* 当前版本: V3.0
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* 创建日期: 2020-01-01
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*
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* 2020-04-23: V2.2.4 增加UISymbolLabel
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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.Design;
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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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[ToolboxItem(true)]
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[DefaultEvent("Click")]
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[DefaultProperty("Text")]
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public sealed class UISymbolLabel : UIControl, ISymbol
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{
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private int _symbolSize = 24;
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private int _imageInterval = 2;
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private Color symbolColor;
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public UISymbolLabel()
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{
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SetStyleFlags(true, false);
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ShowRect = false;
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foreColor = UIFontColor.Primary;
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symbolColor = UIFontColor.Primary;
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Width = 170;
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Height = 35;
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}
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private bool autoSize;
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[Browsable(true)]
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[Description("自动大小"), Category("SunnyUI")]
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public override bool AutoSize
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{
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get => autoSize;
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set
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{
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autoSize = value;
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Invalidate();
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}
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}
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[Description("图标颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "48, 48, 48")]
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public Color SymbolColor
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{
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get => symbolColor;
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set
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{
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symbolColor = value;
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Invalidate();
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}
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}
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/// <summary>
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/// 字体颜色
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/// </summary>
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[Description("字体颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "48, 48, 48")]
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public override Color ForeColor
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{
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get => foreColor;
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set => SetForeColor(value);
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}
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[DefaultValue(24)]
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[Description("字体大小"), Category("SunnyUI")]
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public int SymbolSize
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{
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get => _symbolSize;
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set
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{
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_symbolSize = Math.Max(value, 16);
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_symbolSize = Math.Min(value, 128);
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Invalidate();
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}
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}
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[DefaultValue(2)]
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[Description("图标和文字间间隔"), 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(0, value);
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Invalidate();
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}
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}
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private bool _isCircle;
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[DefaultValue(false)]
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[Description("显示为圆形"), Category("SunnyUI")]
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public bool IsCircle
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{
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get => _isCircle;
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set
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{
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_isCircle = value;
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if (value)
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{
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Text = "";
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}
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else
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{
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Invalidate();
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}
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}
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}
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private int _symbol = FontAwesomeIcons.fa_check;
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[DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
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[Editor(typeof(UIImagePropertyEditor), typeof(UITypeEditor))]
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[DefaultValue(61452)]
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[Description("字体图标"), Category("SunnyUI")]
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public int Symbol
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{
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get => _symbol;
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set
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{
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_symbol = value;
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Invalidate();
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}
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}
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private Point symbolOffset = new Point(0, 0);
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[DefaultValue(typeof(Point), "0, 0")]
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[Description("字体图标的偏移位置"), Category("SunnyUI")]
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public Point SymbolOffset
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{
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get => symbolOffset;
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set
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{
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symbolOffset = value;
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Invalidate();
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}
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}
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protected override void OnPaintFill(Graphics g, GraphicsPath path)
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{
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g.FillRectangle(BackColor, Bounds);
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}
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private int circleRectWidth = 1;
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[DefaultValue(1)]
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[Description("圆形边框大小"), Category("SunnyUI")]
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public int CircleRectWidth
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{
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get => circleRectWidth;
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set
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{
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circleRectWidth = value;
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Invalidate();
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}
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}
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protected override void OnPaintRect(Graphics g, GraphicsPath path)
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{
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if (IsCircle)
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{
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int size = Math.Min(Width, Height) - 2 - CircleRectWidth;
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using var pn = new Pen(GetRectColor(), CircleRectWidth);
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g.SetHighQuality();
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g.DrawEllipse(pn, (Width - size) / 2.0f, (Height - size) / 2.0f, size, size);
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g.SetDefaultQuality();
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}
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else
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{
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base.OnPaintRect(g, path);
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}
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}
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protected override void OnPaintFore(Graphics g, GraphicsPath path)
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{
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Padding = new Padding(_symbolSize + _imageInterval * 2, Padding.Top, Padding.Right, Padding.Bottom);
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//填充文字
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g.DrawString(Text, Font, foreColor, Size, Padding, TextAlign);
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}
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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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symbolColor = foreColor = uiColor.LabelForeColor;
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}
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protected override void OnPaint(PaintEventArgs e)
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{
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//重绘父类
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base.OnPaint(e);
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float left = 0;
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float top = 0;
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SizeF ImageSize = e.Graphics.GetFontImageSize(Symbol, SymbolSize);
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SizeF TextSize = e.Graphics.MeasureString(Text, Font);
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if (autoSize)
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{
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Width = (int)(SymbolSize + ImageInterval * 3 + TextSize.Width);
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Height = (int)Math.Max(SymbolSize, TextSize.Height);
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}
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if (TextAlign == ContentAlignment.TopCenter || TextAlign == ContentAlignment.TopLeft || TextAlign == ContentAlignment.TopRight)
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{
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top = Padding.Top;
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}
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if (TextAlign == ContentAlignment.MiddleCenter || TextAlign == ContentAlignment.MiddleLeft || TextAlign == ContentAlignment.MiddleRight)
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{
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top = Padding.Top + (Height - Padding.Top - Padding.Bottom - ImageSize.Height) / 2.0f;
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}
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if (TextAlign == ContentAlignment.BottomCenter || TextAlign == ContentAlignment.BottomLeft || TextAlign == ContentAlignment.BottomRight)
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{
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top = Height - Padding.Bottom - ImageSize.Height;
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}
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if (TextAlign == ContentAlignment.TopCenter || TextAlign == ContentAlignment.MiddleCenter || TextAlign == ContentAlignment.BottomCenter)
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{
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left = Padding.Left + (Width - TextSize.Width - Padding.Left - Padding.Right) / 2.0f;
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left = left - ImageInterval - ImageSize.Width;
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}
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if (TextAlign == ContentAlignment.TopLeft || TextAlign == ContentAlignment.MiddleLeft || TextAlign == ContentAlignment.BottomLeft)
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{
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left = ImageInterval;
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}
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if (TextAlign == ContentAlignment.TopRight || TextAlign == ContentAlignment.MiddleRight || TextAlign == ContentAlignment.BottomRight)
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{
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left = Width - Padding.Right - TextSize.Width - ImageInterval - ImageSize.Width;
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}
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if (Text.IsNullOrEmpty())
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e.Graphics.DrawFontImage(Symbol, SymbolSize, symbolColor, ImageInterval + (Width - ImageSize.Width) / 2.0f, (Height - ImageSize.Height) / 2.0f, SymbolOffset.X, SymbolOffset.Y);
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else
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e.Graphics.DrawFontImage(Symbol, SymbolSize, symbolColor, left, top, SymbolOffset.X, SymbolOffset.Y);
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}
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}
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}
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