564 lines
23 KiB
C#
564 lines
23 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) 2012-2023 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: UGDI.cs
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* 文件说明: GDI扩展类
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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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* 2021-08-19: V3.0.6 修复CreateRoundedRectanglePath参数radius=0时的错误
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* 2021-08-20: V3.0.6 整理了一些GDI绘图的常用方法扩展
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******************************************************************************/
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using System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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namespace Sunny.UI
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{
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/// <summary>
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/// GDI扩展类
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/// </summary>
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public static class GDI
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{
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/// <summary>
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/// 点是否在区域内
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/// </summary>
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/// <param name="point">点</param>
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/// <param name="region">区域范围</param>
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/// <returns>是否在区域内</returns>
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public static bool InRegion(this Point point, Region region)
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{
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return region.IsVisible(point);
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}
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/// <summary>
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/// 点是否在区域内
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/// </summary>
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/// <param name="point">点</param>
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/// <param name="points">区域范围</param>
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/// <returns>是否在区域内</returns>
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public static bool InRegion(this Point point, Point[] points)
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{
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using GraphicsPath path = points.Path();
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using Region region = path.Region();
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return region.IsVisible(point);
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}
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/// <summary>
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/// 点是否在区域内
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/// </summary>
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/// <param name="point">点</param>
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/// <param name="points">区域范围</param>
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/// <returns>是否在区域内</returns>
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public static bool InRegion(this PointF point, PointF[] points)
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{
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using GraphicsPath path = points.Path();
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using Region region = path.Region();
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return region.IsVisible(point);
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}
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/// <summary>
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/// 创建路径
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/// </summary>
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/// <param name="points">点集合</param>
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/// <returns>路径</returns>
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public static GraphicsPath Path(this Point[] points)
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{
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GraphicsPath path = new GraphicsPath();
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path.Reset();
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path.AddPolygon(points);
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return path;
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}
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/// <summary>
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/// 创建路径
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/// </summary>
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/// <param name="points">点集合</param>
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/// <returns>路径</returns>
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public static GraphicsPath Path(this PointF[] points)
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{
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GraphicsPath path = new GraphicsPath();
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path.Reset();
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path.AddPolygon(points);
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return path;
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}
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/// <summary>
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/// 创建区域
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/// </summary>
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/// <param name="path">路径</param>
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/// <returns>区域</returns>
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public static Region Region(this GraphicsPath path)
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{
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Region region = new Region();
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region.MakeEmpty();
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region.Union(path);
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return region;
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}
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/// <summary>
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/// 获取起始颜色到终止颜色之间的渐变颜色
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/// </summary>
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/// <param name="startColor">起始颜色</param>
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/// <param name="endColor">终止颜色</param>
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/// <param name="count">个数</param>
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/// <returns>渐变颜色列表</returns>
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public static Color[] GradientColors(this Color startColor, Color endColor, int count)
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{
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count = Math.Max(count, 2);
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using Bitmap image = new Bitmap(1024, 3);
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using Graphics g = image.Graphics();
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using Brush br = new LinearGradientBrush(image.Bounds(), startColor, endColor, 0.0F);
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g.FillRectangle(br, image.Bounds());
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Color[] colors = new Color[count];
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colors[0] = startColor;
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colors[count - 1] = endColor;
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if (count > 2)
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{
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FastBitmap fb = new FastBitmap(image);
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fb.Lock();
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for (int i = 1; i < count - 1; i++)
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{
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colors[i] = fb.GetPixel(image.Width * i / (count - 1), 1);
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}
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fb.Unlock();
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fb.Dispose();
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}
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return colors;
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}
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/// <summary>
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/// 开启高质量绘图
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/// </summary>
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/// <param name="g">绘图图面</param>
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/// <param name="smooth">是否平滑</param>
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/// <returns>绘图图面</returns>
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public static Graphics Smooth(this Graphics g, bool smooth = true)
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{
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if (smooth)
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{
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g.SetHighQuality();
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}
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else
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{
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g.SetDefaultQuality();
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}
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return g;
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}
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/// <summary>
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/// 创建圆角路径
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/// </summary>
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/// <param name="g">绘图图面</param>
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/// <param name="rect">区域</param>
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/// <param name="radius">圆角大小</param>
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/// <param name="radiusSides">圆角的方位</param>
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/// <returns>路径</returns>
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public static GraphicsPath CreateRoundedRectanglePath(this Graphics g, Rectangle rect, int radius, UICornerRadiusSides radiusSides)
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{
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return rect.CreateRoundedRectanglePath(radius, radiusSides);
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}
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/// <summary>
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/// 创建圆角路径
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/// </summary>
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/// <param name="g">绘图图面</param>
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/// <param name="rect">区域</param>
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/// <param name="radius">圆角大小</param>
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/// <param name="cornerLeftTop">左上角</param>
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/// <param name="cornerRightTop">右上角</param>
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/// <param name="cornerRightBottom">右下角</param>
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/// <param name="cornerLeftBottom">左下角</param>
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/// <returns>路径</returns>
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public static GraphicsPath CreateRoundedRectanglePath(this Graphics g, Rectangle rect, int radius, bool cornerLeftTop = true, bool cornerRightTop = true, bool cornerRightBottom = true, bool cornerLeftBottom = true)
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{
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return rect.CreateRoundedRectanglePath(radius, cornerLeftTop, cornerRightTop, cornerRightBottom, cornerLeftBottom);
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}
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/// <summary>
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/// 创建圆角路径
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/// </summary>
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/// <param name="rect">区域</param>
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/// <param name="radius">圆角大小</param>
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/// <param name="radiusSides">圆角的方位</param>
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/// <param name="lineSize">线宽</param>
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/// <returns></returns>
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public static GraphicsPath CreateRoundedRectanglePath(this Rectangle rect, int radius, UICornerRadiusSides radiusSides, int lineSize = 1)
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{
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GraphicsPath path;
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if (radiusSides == UICornerRadiusSides.None || radius == 0)
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{
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path = rect.GraphicsPath();
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}
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else
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{
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//IsRadius为True时，显示左上圆角
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bool RadiusLeftTop = radiusSides.GetValue(UICornerRadiusSides.LeftTop);
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//IsRadius为True时，显示左下圆角
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bool RadiusLeftBottom = radiusSides.GetValue(UICornerRadiusSides.LeftBottom);
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//IsRadius为True时，显示右上圆角
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bool RadiusRightTop = radiusSides.GetValue(UICornerRadiusSides.RightTop);
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//IsRadius为True时，显示右下圆角
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bool RadiusRightBottom = radiusSides.GetValue(UICornerRadiusSides.RightBottom);
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path = rect.CreateRoundedRectanglePath(radius, RadiusLeftTop, RadiusRightTop, RadiusRightBottom, RadiusLeftBottom, lineSize);
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}
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return path;
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}
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/// <summary>
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/// 创建圆角路径
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/// </summary>
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/// <param name="rect">区域</param>
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/// <param name="radius">圆角大小</param>
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/// <param name="radiusSides">圆角的方位</param>
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/// <param name="lineSize">线宽</param>
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/// <returns></returns>
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internal static GraphicsPath CreateRoundedRectanglePathWithoutTop(this Rectangle rect, int radius, UICornerRadiusSides radiusSides, int lineSize = 1)
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{
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GraphicsPath path;
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if (UIStyles.GlobalRectangle || radiusSides == UICornerRadiusSides.None || radius == 0)
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{
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path = new GraphicsPath();
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path.AddLine(new Point(rect.X, rect.Y), new Point(rect.X, rect.Y + rect.Height));
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path.AddLine(new Point(rect.X, rect.Y + rect.Height), new Point(rect.X + rect.Width, rect.Y + rect.Height));
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path.AddLine(new Point(rect.X + rect.Width, rect.Y + rect.Height), new Point(rect.X + rect.Width, rect.Y));
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}
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else
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{
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//IsRadius为True时，显示左上圆角
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bool RadiusLeftTop = radiusSides.GetValue(UICornerRadiusSides.LeftTop);
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//IsRadius为True时，显示左下圆角
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bool RadiusLeftBottom = radiusSides.GetValue(UICornerRadiusSides.LeftBottom);
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//IsRadius为True时，显示右上圆角
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bool RadiusRightTop = radiusSides.GetValue(UICornerRadiusSides.RightTop);
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//IsRadius为True时，显示右下圆角
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bool RadiusRightBottom = radiusSides.GetValue(UICornerRadiusSides.RightBottom);
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path = rect.CreateRoundedRectanglePathWithoutTop(radius, RadiusLeftTop, RadiusRightTop, RadiusRightBottom, RadiusLeftBottom, lineSize);
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}
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return path;
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}
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internal static GraphicsPath CreateRoundedRectanglePathWithoutTop(this Rectangle rect, int radius,
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bool cornerLeftTop = true, bool cornerRightTop = true, bool cornerRightBottom = true, bool cornerLeftBottom = true,
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int lineSize = 1)
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{
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GraphicsPath path = new GraphicsPath();
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if (UIStyles.GlobalRectangle || (!cornerLeftTop && !cornerRightTop && !cornerRightBottom && !cornerLeftBottom) || radius <= 0)
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{
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path.AddLine(new Point(rect.X, rect.Y), new Point(rect.X, rect.Y + rect.Height));
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path.AddLine(new Point(rect.X, rect.Y + rect.Height), new Point(rect.X + rect.Width, rect.Y + rect.Height));
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path.AddLine(new Point(rect.X + rect.Width, rect.Y + rect.Height), new Point(rect.X + rect.Width, rect.Y));
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}
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else
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{
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radius *= lineSize;
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if (cornerRightTop)
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path.AddArc(rect.X + rect.Width - radius, rect.Y, radius, radius, 270, 90);
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else
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path.AddLine(new Point(rect.X + rect.Width - 1, rect.Y), new Point(rect.X + rect.Width, rect.Y));
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if (cornerRightBottom)
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path.AddArc(rect.X + rect.Width - radius, rect.Y + rect.Height - radius, radius, radius, 0, 90);
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else
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path.AddLine(new Point(rect.X + rect.Width, rect.Y + rect.Height), new Point(rect.X + rect.Width, rect.Y + rect.Height));
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if (cornerLeftBottom)
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path.AddArc(rect.X, rect.Bottom - radius, radius, radius, 90, 90);
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else
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path.AddLine(new Point(rect.X + 1, rect.Y + rect.Height), new Point(rect.X, rect.Y + rect.Height));
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if (cornerLeftTop)
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path.AddArc(rect.X, rect.Y, radius, radius, 180, 90);
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else
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path.AddLine(new Point(rect.X, rect.Y + 1), new Point(rect.X, rect.Y));
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//path.CloseFigure();
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}
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return path;
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}
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/// <summary>
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/// 绘图路径
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/// </summary>
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/// <param name="rect">区域</param>
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/// <returns>路径</returns>
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public static GraphicsPath GraphicsPath(this Rectangle rect)
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{
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Point[] points = new Point[] {
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new Point(rect.Left, rect.Top),
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new Point(rect.Right, rect.Top),
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new Point(rect.Right, rect.Bottom),
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new Point(rect.Left, rect.Bottom),
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new Point(rect.Left, rect.Top) };
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return points.Path();
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}
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/// <summary>
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/// 创建扇形绘图路径
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/// </summary>
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/// <param name="g">绘图图面</param>
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/// <param name="center">圆心</param>
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/// <param name="d1">内径</param>
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/// <param name="d2">外径</param>
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/// <param name="startAngle">起始角度</param>
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/// <param name="sweepAngle">终止角度</param>
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/// <returns>扇形绘图路径</returns>
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public static GraphicsPath CreateFanPath(this Graphics g, Point center, float d1, float d2, float startAngle, float sweepAngle)
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{
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return center.CreateFanPath(d1, d2, startAngle, sweepAngle);
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}
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/// <summary>
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/// 创建扇形绘图路径
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/// </summary>
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/// <param name="g">绘图图面</param>
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/// <param name="center">圆心</param>
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/// <param name="d1">内径</param>
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/// <param name="d2">外径</param>
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/// <param name="startAngle">起始角度</param>
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/// <param name="sweepAngle">终止角度</param>
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/// <returns>扇形绘图路径</returns>
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public static GraphicsPath CreateFanPath(this Graphics g, PointF center, float d1, float d2, float startAngle, float sweepAngle)
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{
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return center.CreateFanPath(d1, d2, startAngle, sweepAngle);
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}
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/// <summary>
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/// 创建扇形绘图路径
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/// </summary>
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/// <param name="center">圆心</param>
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/// <param name="d1">内径</param>
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/// <param name="d2">外径</param>
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/// <param name="startAngle">起始角度</param>
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/// <param name="sweepAngle">终止角度</param>
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/// <returns>扇形绘图路径</returns>
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public static GraphicsPath CreateFanPath(this Point center, float d1, float d2, float startAngle, float sweepAngle)
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{
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return new PointF(center.X, center.Y).CreateFanPath(d1, d2, startAngle, sweepAngle);
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}
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/// <summary>
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/// 创建扇形绘图路径
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/// </summary>
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/// <param name="center">圆心</param>
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/// <param name="d1">内径</param>
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/// <param name="d2">外径</param>
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/// <param name="startAngle">起始角度</param>
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/// <param name="sweepAngle">终止角度</param>
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/// <returns>扇形绘图路径</returns>
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public static GraphicsPath CreateFanPath(this PointF center, float d1, float d2, float startAngle, float sweepAngle)
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{
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GraphicsPath path = new GraphicsPath();
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path.AddArc(center.X - d1, center.Y - d1, d1 * 2, d1 * 2, startAngle, sweepAngle);
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path.AddArc(center.X - d2, center.Y - d2, d2 * 2, d2 * 2, startAngle + sweepAngle, -sweepAngle);
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path.AddArc(center.X - d1, center.Y - d1, d1 * 2, d1 * 2, startAngle, 0.1f);
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return path;
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}
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/// <summary>
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/// 创建圆角路径
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/// </summary>
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/// <param name="g">绘图图面</param>
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/// <param name="rect">区域</param>
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/// <param name="radius">圆角大小</param>
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/// <param name="cornerLeftTop">左上角</param>
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/// <param name="cornerRightTop">右上角</param>
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/// <param name="cornerRightBottom">右下角</param>
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/// <param name="cornerLeftBottom">左下角</param>
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/// <param name="lineSize">线宽</param>
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/// <returns>路径</returns>
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public static GraphicsPath CreateRoundedRectanglePath(this Rectangle rect, int radius,
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bool cornerLeftTop = true, bool cornerRightTop = true, bool cornerRightBottom = true, bool cornerLeftBottom = true,
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int lineSize = 1)
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{
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GraphicsPath path = new GraphicsPath();
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if (UIStyles.GlobalRectangle || (!cornerLeftTop && !cornerRightTop && !cornerRightBottom && !cornerLeftBottom) || radius <= 0)
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{
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path = rect.GraphicsPath();
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}
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else
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{
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radius *= lineSize;
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if (cornerLeftTop)
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path.AddArc(rect.X, rect.Y, radius, radius, 180, 90);
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else
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path.AddLine(new Point(rect.X, rect.Y + 1), new Point(rect.X, rect.Y));
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if (cornerRightTop)
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path.AddArc(rect.X + rect.Width - radius, rect.Y, radius, radius, 270, 90);
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else
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path.AddLine(new Point(rect.X + rect.Width - 1, rect.Y), new Point(rect.X + rect.Width, rect.Y));
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if (cornerRightBottom)
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path.AddArc(rect.X + rect.Width - radius, rect.Y + rect.Height - radius, radius, radius, 0, 90);
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else
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path.AddLine(new Point(rect.X + rect.Width, rect.Y + rect.Height), new Point(rect.X + rect.Width, rect.Y + rect.Height));
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if (cornerLeftBottom)
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path.AddArc(rect.X, rect.Bottom - radius, radius, radius, 90, 90);
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else
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path.AddLine(new Point(rect.X + 1, rect.Y + rect.Height), new Point(rect.X, rect.Y + rect.Height));
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path.CloseFigure();
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}
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return path;
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}
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public static GraphicsPath CreateTrueRoundedRectanglePath(this Rectangle rect, int radius, int lineSize = 1)
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{
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GraphicsPath path = new GraphicsPath();
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radius *= lineSize;
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path.AddArc(rect.X, rect.Y, radius, radius, 180, 90);
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path.AddArc(rect.X + rect.Width - radius, rect.Y, radius, radius, 270, 90);
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path.AddArc(rect.X + rect.Width - radius, rect.Y + rect.Height - radius, radius, radius, 0, 90);
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path.AddArc(rect.X, rect.Bottom - radius, radius, radius, 90, 90);
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path.CloseFigure();
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return path;
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}
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/// <summary>
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/// 设置GDI高质量模式抗锯齿
|
||
/// </summary>
|
||
/// <param name="g"></param>
|
||
public static Graphics SetHighQuality(this Graphics g)
|
||
{
|
||
g.SmoothingMode = SmoothingMode.AntiAlias; //使绘图质量最高，即消除锯齿
|
||
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
|
||
g.CompositingQuality = CompositingQuality.HighQuality;
|
||
return g;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 设置GDI默认值
|
||
/// </summary>
|
||
/// <param name="g"></param>
|
||
public static Graphics SetDefaultQuality(this Graphics g)
|
||
{
|
||
g.SmoothingMode = SmoothingMode.Default;
|
||
g.InterpolationMode = InterpolationMode.Default;
|
||
g.CompositingQuality = CompositingQuality.Default;
|
||
return g;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 颜色是否为空
|
||
/// </summary>
|
||
/// <param name="color">颜色</param>
|
||
/// <returns>是否为空</returns>
|
||
public static bool IsNullOrEmpty(this Color color)
|
||
{
|
||
return color == Color.Empty || color == Color.Transparent;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 画刷
|
||
/// </summary>
|
||
/// <param name="color">颜色</param>
|
||
/// <returns>画刷</returns>
|
||
public static SolidBrush Brush(this Color color)
|
||
{
|
||
return new SolidBrush(color);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 画笔
|
||
/// </summary>
|
||
/// <param name="color">颜色</param>
|
||
/// <param name="size">线宽</param>
|
||
/// <returns>画笔</returns>
|
||
public static Pen Pen(this Color color, float size = 1)
|
||
{
|
||
return new Pen(color, size);
|
||
}
|
||
|
||
/// <summary>
|
||
/// HTML颜色生成画刷
|
||
/// </summary>
|
||
/// <param name="htmlColor">HTML颜色</param>
|
||
/// <param name="alpha">透明度</param>
|
||
/// <returns>画刷</returns>
|
||
public static SolidBrush Brush(this string htmlColor, int alpha = 255)
|
||
{
|
||
return new SolidBrush(Color.FromArgb(alpha > 255 ? 255 : alpha, ColorTranslator.FromHtml(htmlColor)));
|
||
}
|
||
|
||
/// <summary>
|
||
/// HTML颜色生成画笔
|
||
/// </summary>
|
||
/// <param name="htmlColor">HTML颜色</param>
|
||
/// <param name="alpha">透明度</param>
|
||
/// <param name="size">线宽</param>
|
||
/// <param name="startCap">起始线帽样式</param>
|
||
/// <param name="endCap">结束线帽样式</param>
|
||
/// <returns>画笔</returns>
|
||
public static Pen Pen(this string htmlColor, int alpha = 255, float size = 1, LineCap startCap = LineCap.Custom, LineCap endCap = LineCap.Custom)
|
||
{
|
||
return new Pen(Color.FromArgb(alpha > 255 ? 255 : alpha, ColorTranslator.FromHtml(htmlColor)), size) { StartCap = startCap, EndCap = endCap };
|
||
}
|
||
|
||
/// <summary>
|
||
/// 渐变画刷
|
||
/// </summary>
|
||
/// <param name="centerColor"></param>
|
||
/// <param name="surroundColor"></param>
|
||
/// <param name="point"></param>
|
||
/// <param name="gp"></param>
|
||
/// <param name="wrapMode"></param>
|
||
/// <returns></returns>
|
||
public static Brush GlowBrush(Color centerColor, Color[] surroundColor, PointF point, GraphicsPath gp, WrapMode wrapMode = WrapMode.Clamp)
|
||
{
|
||
return new PathGradientBrush(gp) { CenterColor = centerColor, SurroundColors = surroundColor, FocusScales = point, WrapMode = wrapMode };
|
||
}
|
||
|
||
/// <summary>
|
||
/// 渐变画刷
|
||
/// </summary>
|
||
/// <param name="centerColor"></param>
|
||
/// <param name="surroundColor"></param>
|
||
/// <param name="point"></param>
|
||
/// <param name="wrapMode"></param>
|
||
/// <returns></returns>
|
||
public static Brush GlowBrush(Color centerColor, Color[] surroundColor, PointF[] point, WrapMode wrapMode = WrapMode.Clamp)
|
||
{
|
||
return new PathGradientBrush(point) { CenterColor = centerColor, SurroundColors = surroundColor, WrapMode = wrapMode };
|
||
}
|
||
|
||
/// <summary>
|
||
/// 文本布局
|
||
/// </summary>
|
||
/// <param name="horizontalAlignment">水平方向</param>
|
||
/// <param name="verticalAlignment">垂直方向</param>
|
||
/// <returns>文本布局</returns>
|
||
public static StringFormat SetCenterAlignment(StringAlignment horizontalAlignment = StringAlignment.Center, StringAlignment verticalAlignment = StringAlignment.Center)
|
||
{
|
||
return new StringFormat { Alignment = horizontalAlignment, LineAlignment = verticalAlignment };
|
||
}
|
||
}
|
||
} |