378 lines
13 KiB
C#
378 lines
13 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: UISymbolButton.cs
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* 文件说明: 字体图标按钮
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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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* 2020-01-01: V2.2.0 增加文件说明
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* 2020-07-26: V2.2.6 增加Image属性，增加图片和文字的摆放位置
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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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[DefaultEvent("Click")]
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[DefaultProperty("Text")]
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public class UISymbolButton : UIButton, 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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public UISymbolButton()
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{
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ShowText = false;
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}
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[DefaultValue(24)]
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[Description("字体图标大小"), 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(null)]
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[Description("图片"), Category("SunnyUI")]
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public Image Image
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{
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get; set;
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}
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private ContentAlignment imageAlign = ContentAlignment.MiddleCenter;
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[DefaultValue(ContentAlignment.MiddleCenter)]
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[Description("图片放置位置"), Category("SunnyUI")]
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public ContentAlignment ImageAlign
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{
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get => imageAlign;
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set
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{
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imageAlign = value;
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Invalidate();
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}
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}
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[DefaultValue(2)]
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[Description("图片文字间间隔"), 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("是否是圆形"), 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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if (IsCircle)
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{
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int size = Math.Min(Width, Height) - 2 - CircleRectWidth;
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g.FillEllipse(GetFillColor(), (Width - size) / 2.0f, (Height - size) / 2.0f, size, size);
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}
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else
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{
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base.OnPaintFill(g, path);
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}
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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 OnPaddingChanged(EventArgs e)
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{
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base.OnPaddingChanged(e);
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Invalidate();
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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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SizeF ImageSize = new SizeF(0, 0);
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if (Symbol > 0)
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ImageSize = e.Graphics.GetFontImageSize(Symbol, SymbolSize);
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if (Image != null)
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ImageSize = Image.Size;
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//字体图标
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Color color = GetForeColor();
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SizeF TextSize = e.Graphics.MeasureString(Text, Font);
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if (ImageAlign == ContentAlignment.MiddleCenter && TextAlign == ContentAlignment.MiddleCenter)
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{
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if (ImageSize.Width.Equals(0))
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{
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if (TextSize.Width > 0)
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e.Graphics.DrawString(Text, Font, color, (Width - TextSize.Width) / 2.0f, (Height - TextSize.Height) / 2.0f);
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}
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else if (TextSize.Width.Equals(0))
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{
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if (ImageSize.Width > 0)
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{
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if (Symbol > 0 && Image == null)
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{
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e.Graphics.DrawFontImage(Symbol, SymbolSize, color,
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new RectangleF(
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(Width - ImageSize.Width) / 2.0f,
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Padding.Top + (Height - ImageSize.Height - Padding.Top - Padding.Bottom) / 2.0f,
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ImageSize.Width, ImageSize.Height), SymbolOffset.X, SymbolOffset.Y);
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}
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if (Image != null)
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{
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e.Graphics.DrawImage(Image,
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(Width - ImageSize.Width) / 2.0f,
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Padding.Top + (Height - ImageSize.Height - Padding.Top - Padding.Bottom) / 2.0f,
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ImageSize.Width, ImageSize.Height);
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}
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}
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}
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else
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{
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float allWidth = ImageSize.Width + ImageInterval + TextSize.Width;
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if (Symbol > 0 && Image == null)
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{
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e.Graphics.DrawFontImage(Symbol, SymbolSize, color,
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new RectangleF((Width - allWidth) / 2.0f, (Height - ImageSize.Height) / 2.0f, ImageSize.Width, ImageSize.Height), SymbolOffset.X, SymbolOffset.Y);
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}
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if (Image != null)
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{
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e.Graphics.DrawImage(Image, (Width - allWidth) / 2.0f, (Height - ImageSize.Height) / 2.0f,
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ImageSize.Width, ImageSize.Height);
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}
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e.Graphics.DrawString(Text, Font, color, (Width - allWidth) / 2.0f + ImageSize.Width + ImageInterval,
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(Height - TextSize.Height) / 2.0f);
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}
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}
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else
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{
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float left = 0;
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float top = 0;
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if (ImageSize.Width > 0)
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{
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switch (ImageAlign)
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{
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case ContentAlignment.TopLeft:
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left = Padding.Left;
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top = Padding.Top;
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break;
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case ContentAlignment.TopCenter:
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left = (Width - ImageSize.Width) / 2.0f;
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top = Padding.Top;
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break;
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case ContentAlignment.TopRight:
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left = Width - Padding.Right - ImageSize.Width;
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top = Padding.Top;
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break;
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case ContentAlignment.MiddleLeft:
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left = Padding.Left;
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top = (Height - ImageSize.Height) / 2.0f;
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break;
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case ContentAlignment.MiddleCenter:
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left = (Width - ImageSize.Width) / 2.0f;
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top = (Height - ImageSize.Height) / 2.0f;
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break;
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case ContentAlignment.MiddleRight:
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left = Width - Padding.Right - ImageSize.Width;
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top = (Height - ImageSize.Height) / 2.0f;
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break;
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case ContentAlignment.BottomLeft:
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left = Padding.Left;
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top = Height - Padding.Bottom - ImageSize.Height;
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break;
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case ContentAlignment.BottomCenter:
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left = (Width - ImageSize.Width) / 2.0f;
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top = Height - Padding.Bottom - ImageSize.Height;
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break;
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case ContentAlignment.BottomRight:
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left = Width - Padding.Right - ImageSize.Width;
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top = Height - Padding.Bottom - ImageSize.Height;
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break;
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}
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if (Symbol > 0 && Image == null)
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{
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e.Graphics.DrawFontImage(Symbol, SymbolSize, color,
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new RectangleF(left, top, ImageSize.Width, ImageSize.Height), SymbolOffset.X, SymbolOffset.Y);
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}
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if (Image != null)
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{
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e.Graphics.DrawImage(Image, left, top, ImageSize.Width, ImageSize.Height);
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}
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}
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left = 0;
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top = 0;
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if (TextSize.Width > 0)
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{
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switch (TextAlign)
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{
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case ContentAlignment.TopLeft:
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left = Padding.Left;
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top = Padding.Top;
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break;
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case ContentAlignment.TopCenter:
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left = (Width - TextSize.Width) / 2.0f;
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top = Padding.Top;
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break;
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case ContentAlignment.TopRight:
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left = Width - Padding.Right - TextSize.Width;
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top = Padding.Top;
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break;
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case ContentAlignment.MiddleLeft:
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left = Padding.Left;
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top = (Height - TextSize.Height) / 2.0f;
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break;
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case ContentAlignment.MiddleCenter:
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left = (Width - TextSize.Width) / 2.0f;
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top = (Height - TextSize.Height) / 2.0f;
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break;
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case ContentAlignment.MiddleRight:
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left = Width - Padding.Right - TextSize.Width;
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top = (Height - TextSize.Height) / 2.0f;
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break;
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case ContentAlignment.BottomLeft:
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left = Padding.Left;
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top = Height - Padding.Bottom - TextSize.Height;
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break;
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case ContentAlignment.BottomCenter:
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left = (Width - TextSize.Width) / 2.0f;
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top = Height - Padding.Bottom - TextSize.Height;
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break;
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case ContentAlignment.BottomRight:
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left = Width - Padding.Right - TextSize.Width;
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top = Height - Padding.Bottom - TextSize.Height;
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break;
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}
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e.Graphics.DrawString(Text, Font, color, left, top);
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}
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}
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}
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}
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} |