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source: branches/CEDMA-Exporter-715/sources/WinFormsUI/Docking/Helpers/DrawHelper.cs @ 2273

Last change on this file since 2273 was 2134, checked in by gkronber, 15 years ago

Added up to date source of Weifen Luo dock panel suit in a separate project (and added strong name key). Removed binary versions of Weifen Luo dock panel suite and references to it. #687 (Update AdvancedOptimizationFrontend to use more recent version of Weifen Luo Docking library)

File size: 3.4 KB
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1using System;
2using System.Drawing;
3using System.Drawing.Drawing2D;
4using System.Drawing.Imaging;
5using System.Windows.Forms;
6
7namespace WeifenLuo.WinFormsUI.Docking
8{
9  internal static class DrawHelper
10  {
11        public static Point RtlTransform(Control control, Point point)
12        {
13            if (control.RightToLeft != RightToLeft.Yes)
14                return point;
15            else
16                return new Point(control.Right - point.X, point.Y);
17        }
18
19        public static Rectangle RtlTransform(Control control, Rectangle rectangle)
20        {
21            if (control.RightToLeft != RightToLeft.Yes)
22                return rectangle;
23            else
24                return new Rectangle(control.ClientRectangle.Right - rectangle.Right, rectangle.Y, rectangle.Width, rectangle.Height);
25        }
26
27        public static GraphicsPath GetRoundedCornerTab(GraphicsPath graphicsPath, Rectangle rect, bool upCorner)
28        {
29            if (graphicsPath == null)
30                graphicsPath = new GraphicsPath();
31            else
32                graphicsPath.Reset();
33           
34            int curveSize = 6;
35            if (upCorner)
36            {
37                graphicsPath.AddLine(rect.Left, rect.Bottom, rect.Left, rect.Top + curveSize / 2);
38                graphicsPath.AddArc(new Rectangle(rect.Left, rect.Top, curveSize, curveSize), 180, 90);
39                graphicsPath.AddLine(rect.Left + curveSize / 2, rect.Top, rect.Right - curveSize / 2, rect.Top);
40                graphicsPath.AddArc(new Rectangle(rect.Right - curveSize, rect.Top, curveSize, curveSize), -90, 90);
41                graphicsPath.AddLine(rect.Right, rect.Top + curveSize / 2, rect.Right, rect.Bottom);
42            }
43            else
44            {
45                graphicsPath.AddLine(rect.Right, rect.Top, rect.Right, rect.Bottom - curveSize / 2);
46                graphicsPath.AddArc(new Rectangle(rect.Right - curveSize, rect.Bottom - curveSize, curveSize, curveSize), 0, 90);
47                graphicsPath.AddLine(rect.Right - curveSize / 2, rect.Bottom, rect.Left + curveSize / 2, rect.Bottom);
48                graphicsPath.AddArc(new Rectangle(rect.Left, rect.Bottom - curveSize, curveSize, curveSize), 90, 90);
49                graphicsPath.AddLine(rect.Left, rect.Bottom - curveSize / 2, rect.Left, rect.Top);
50            }
51
52            return graphicsPath;
53        }
54
55    public static GraphicsPath CalculateGraphicsPathFromBitmap(Bitmap bitmap)
56    {
57      return CalculateGraphicsPathFromBitmap(bitmap, Color.Empty);
58    }
59
60    // From http://edu.cnzz.cn/show_3281.html
61    public static GraphicsPath CalculateGraphicsPathFromBitmap(Bitmap bitmap, Color colorTransparent)
62    {
63      GraphicsPath graphicsPath = new GraphicsPath();
64      if (colorTransparent == Color.Empty)
65        colorTransparent = bitmap.GetPixel(0, 0);
66
67      for(int row = 0; row < bitmap.Height; row ++)
68      {
69        int colOpaquePixel = 0;
70        for(int col = 0; col < bitmap.Width; col ++)
71        {
72          if(bitmap.GetPixel(col, row) != colorTransparent)
73          {
74            colOpaquePixel = col;
75            int colNext = col;
76            for(colNext = colOpaquePixel; colNext < bitmap.Width; colNext ++)
77              if(bitmap.GetPixel(colNext, row) == colorTransparent)
78                break;
79 
80            graphicsPath.AddRectangle(new Rectangle(colOpaquePixel, row, colNext - colOpaquePixel, 1));
81            col = colNext;
82          }
83        }
84      }
85      return graphicsPath;
86    }
87  }
88}
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