1 using System;
2 using System.Collections.Generic;
3 using System.Text;
4 using System.Drawing;
5 using System.Windows.Forms;
6 
7 namespace FastColoredTextBoxNS
8 {
9     public class VisualMarker
10     {
11         public readonly Rectangle rectangle;
12 
VisualMarker(Rectangle rectangle)13         public VisualMarker(Rectangle rectangle)
14         {
15             this.rectangle = rectangle;
16         }
17 
Draw(Graphics gr, Pen pen)18         public virtual void Draw(Graphics gr, Pen pen)
19         {
20         }
21 
22         public virtual Cursor Cursor
23         {
24             get { return Cursors.Hand; }
25         }
26     }
27 
28     public class CollapseFoldingMarker: VisualMarker
29     {
30         public readonly int iLine;
31 
CollapseFoldingMarker(int iLine, Rectangle rectangle)32         public CollapseFoldingMarker(int iLine, Rectangle rectangle)
33             : base(rectangle)
34         {
35             this.iLine = iLine;
36         }
37 
Draw(Graphics gr, Pen pen, Brush backgroundBrush, Pen forePen)38         public void Draw(Graphics gr, Pen pen, Brush backgroundBrush, Pen forePen)
39         {
40             //draw minus
41             gr.FillRectangle(backgroundBrush, rectangle);
42             gr.DrawRectangle(pen, rectangle);
43             gr.DrawLine(forePen, rectangle.Left + 2, rectangle.Top + rectangle.Height / 2, rectangle.Right - 2, rectangle.Top + rectangle.Height / 2);
44         }
45     }
46 
47     public class ExpandFoldingMarker : VisualMarker
48     {
49         public readonly int iLine;
50 
ExpandFoldingMarker(int iLine, Rectangle rectangle)51         public ExpandFoldingMarker(int iLine, Rectangle rectangle)
52             : base(rectangle)
53         {
54             this.iLine = iLine;
55         }
56 
Draw(Graphics gr, Pen pen, Brush backgroundBrush, Pen forePen)57         public void Draw(Graphics gr, Pen pen,  Brush backgroundBrush, Pen forePen)
58         {
59             //draw plus
60             gr.FillRectangle(backgroundBrush, rectangle);
61             gr.DrawRectangle(pen, rectangle);
62             gr.DrawLine(forePen, rectangle.Left + 2, rectangle.Top + rectangle.Height / 2, rectangle.Right - 2, rectangle.Top + rectangle.Height / 2);
63             gr.DrawLine(forePen, rectangle.Left + rectangle.Width / 2, rectangle.Top + 2, rectangle.Left + rectangle.Width / 2, rectangle.Bottom - 2);
64         }
65     }
66 
67     public class FoldedAreaMarker : VisualMarker
68     {
69         public readonly int iLine;
70 
FoldedAreaMarker(int iLine, Rectangle rectangle)71         public FoldedAreaMarker(int iLine, Rectangle rectangle)
72             : base(rectangle)
73         {
74             this.iLine = iLine;
75         }
76 
Draw(Graphics gr, Pen pen)77         public override void Draw(Graphics gr, Pen pen)
78         {
79             gr.DrawRectangle(pen, rectangle);
80         }
81     }
82 
83     public class StyleVisualMarker : VisualMarker
84     {
85         public Style Style{get;private set;}
86 
StyleVisualMarker(Rectangle rectangle, Style style)87         public StyleVisualMarker(Rectangle rectangle, Style style)
88             : base(rectangle)
89         {
90             this.Style = style;
91         }
92     }
93 
94     public class VisualMarkerEventArgs : MouseEventArgs
95     {
96         public Style Style { get; private set; }
97         public StyleVisualMarker Marker { get; private set; }
98 
VisualMarkerEventArgs(Style style, StyleVisualMarker marker, MouseEventArgs args)99         public VisualMarkerEventArgs(Style style, StyleVisualMarker marker, MouseEventArgs args)
100             : base(args.Button, args.Clicks, args.X, args.Y, args.Delta)
101         {
102             this.Style = style;
103             this.Marker = marker;
104         }
105     }
106 }
107