Code Coverage Statistics for Source File

c:\Tools\SD3\src\Libraries\ICSharpCode.TextEditor\Project\Src\Gui\GutterMargin.cs

Sequence Point Coverage N/A 0 of 0	Branch Coverage N/A 0 of 0	Lines 158

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Highlight: Uncovered Code Covered Code


// <file>
//     <copyright see="prj:///doc/copyright.txt"/>
//     <license see="prj:///doc/license.txt"/>
//     <owner name="Mike Krüger" email="mike@icsharpcode.net"/>
//     <version>$Revision: 2680 $</version>
// </file>

using System;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Windows.Forms;

using ICSharpCode.TextEditor.Document;

namespace ICSharpCode.TextEditor
{
	/// <summary>
	/// This class views the line numbers and folding markers.
	/// </summary>
	public class GutterMargin : AbstractMargin, IDisposable
	{
		StringFormat numberStringFormat = (StringFormat)StringFormat.GenericTypographic.Clone();
		
		public static Cursor RightLeftCursor;
		
		static GutterMargin()
		{
			Stream cursorStream = Assembly.GetCallingAssembly().GetManifestResourceStream("ICSharpCode.TextEditor.Resources.RightArrow.cur");
			RightLeftCursor = new Cursor(cursorStream);
			cursorStream.Close();
		}
		
		public void Dispose()
		{
			numberStringFormat.Dispose();
		}
		
		public override Cursor Cursor {
			get {
				return RightLeftCursor;
			}
		}
		
		public override Size Size {
			get {
				return new Size((int)(textArea.TextView.WideSpaceWidth
				                      * Math.Max(3, (int)Math.Log10(textArea.Document.TotalNumberOfLines) + 1)),
				                -1);
			}
		}
		
		public override bool IsVisible {
			get {
				return textArea.TextEditorProperties.ShowLineNumbers;
			}
		}
		
		public GutterMargin(TextArea textArea) : base(textArea)
		{
			numberStringFormat.LineAlignment = StringAlignment.Far;
			numberStringFormat.FormatFlags   = StringFormatFlags.MeasureTrailingSpaces | StringFormatFlags.FitBlackBox |
				StringFormatFlags.NoWrap | StringFormatFlags.NoClip;
		}
		
		public override void Paint(Graphics g, Rectangle rect)
		{
			if (rect.Width <= 0 || rect.Height <= 0) {
				return;
			}
			HighlightColor lineNumberPainterColor = textArea.Document.HighlightingStrategy.GetColorFor("LineNumbers");
			int fontHeight = textArea.TextView.FontHeight;
			Brush fillBrush = textArea.Enabled ? BrushRegistry.GetBrush(lineNumberPainterColor.BackgroundColor) : SystemBrushes.InactiveBorder;
			Brush drawBrush = BrushRegistry.GetBrush(lineNumberPainterColor.Color);
			for (int y = 0; y < (DrawingPosition.Height + textArea.TextView.VisibleLineDrawingRemainder) / fontHeight + 1; ++y) {
				int ypos = drawingPosition.Y + fontHeight * y  - textArea.TextView.VisibleLineDrawingRemainder;
				Rectangle backgroundRectangle = new Rectangle(drawingPosition.X, ypos, drawingPosition.Width, fontHeight);
				if (rect.IntersectsWith(backgroundRectangle)) {
					g.FillRectangle(fillBrush, backgroundRectangle);
					int curLine = textArea.Document.GetFirstLogicalLine(textArea.Document.GetVisibleLine(textArea.TextView.FirstVisibleLine) + y);
					
					if (curLine < textArea.Document.TotalNumberOfLines) {
						g.DrawString((curLine + 1).ToString(),
						             lineNumberPainterColor.GetFont(TextEditorProperties.FontContainer),
						             drawBrush,
						             backgroundRectangle,
						             numberStringFormat);
					}
				}
			}
		}

		public override void HandleMouseDown(Point mousepos, MouseButtons mouseButtons)
		{
			TextLocation selectionStartPos;

			textArea.SelectionManager.selectFrom.where = WhereFrom.Gutter;
			int realline = textArea.TextView.GetLogicalLine(mousepos.Y);
			if (realline >= 0 && realline < textArea.Document.TotalNumberOfLines) {
				// shift-select
				if((Control.ModifierKeys & Keys.Shift) != 0) {
					if(!textArea.SelectionManager.HasSomethingSelected && realline != textArea.Caret.Position.Y) {
						if (realline >= textArea.Caret.Position.Y)
						{ // at or below starting selection, place the cursor on the next line
							// nothing is selected so make a new selection from cursor
							selectionStartPos = textArea.Caret.Position;
							// whole line selection - start of line to start of next line
							if (realline < textArea.Document.TotalNumberOfLines - 1)
							{
								textArea.SelectionManager.SetSelection(new DefaultSelection(textArea.Document, selectionStartPos, new TextLocation(0, realline + 1)));
								textArea.Caret.Position = new TextLocation(0, realline + 1);
							}
							else
							{
								textArea.SelectionManager.SetSelection(new DefaultSelection(textArea.Document, selectionStartPos, new TextLocation(textArea.Document.GetLineSegment(realline).Length + 1, realline)));
								textArea.Caret.Position = new TextLocation(textArea.Document.GetLineSegment(realline).Length + 1, realline);
							}
						}
						else
						{ // prior lines to starting selection, place the cursor on the same line as the new selection
							// nothing is selected so make a new selection from cursor
							selectionStartPos = textArea.Caret.Position;
							// whole line selection - start of line to start of next line
							textArea.SelectionManager.SetSelection(new DefaultSelection(textArea.Document, selectionStartPos, new TextLocation(selectionStartPos.X, selectionStartPos.Y)));
							textArea.SelectionManager.ExtendSelection(new TextLocation(selectionStartPos.X, selectionStartPos.Y), new TextLocation(0, realline));
							textArea.Caret.Position = new TextLocation(0, realline);
						}
					}
					else
					{
						// let MouseMove handle a shift-click in a gutter
						MouseEventArgs e = new MouseEventArgs(mouseButtons, 1, mousepos.X, mousepos.Y, 0);
						textArea.RaiseMouseMove(e);
					}
				} else { // this is a new selection with no shift-key
					// sync the textareamousehandler mouse location
					// (fixes problem with clicking out into a menu then back to the gutter whilst
					// there is a selection)
					textArea.mousepos = mousepos;

					selectionStartPos = new TextLocation(0, realline);
					textArea.SelectionManager.ClearSelection();
					// whole line selection - start of line to start of next line
					if (realline < textArea.Document.TotalNumberOfLines - 1)
					{
						textArea.SelectionManager.SetSelection(new DefaultSelection(textArea.Document, selectionStartPos, new TextLocation(selectionStartPos.X, selectionStartPos.Y + 1)));
						textArea.Caret.Position = new TextLocation(selectionStartPos.X, selectionStartPos.Y + 1);
					}
					else
					{
						textArea.SelectionManager.SetSelection(new DefaultSelection(textArea.Document, new TextLocation(0, realline), new TextLocation(textArea.Document.GetLineSegment(realline).Length + 1, selectionStartPos.Y)));
						textArea.Caret.Position = new TextLocation(textArea.Document.GetLineSegment(realline).Length + 1, selectionStartPos.Y);
					}
				}
			}
		}
	}
}

L	V	Source
1		// <file>
2		// <copyright see="prj:///doc/copyright.txt"/>
3		// <license see="prj:///doc/license.txt"/>
4		// <owner name="Mike Krüger" email="mike@icsharpcode.net"/>
5		// <version>$Revision: 2680 $</version>
6		// </file>
7
8		using System;
9		using System.Drawing;
10		using System.IO;
11		using System.Reflection;
12		using System.Windows.Forms;
13
14		using ICSharpCode.TextEditor.Document;
15
16		namespace ICSharpCode.TextEditor
17		{
18		/// <summary>
19		/// This class views the line numbers and folding markers.
20		/// </summary>
21		public class GutterMargin : AbstractMargin, IDisposable
22		{
23		StringFormat numberStringFormat = (StringFormat)StringFormat.GenericTypographic.Clone();
24
25		public static Cursor RightLeftCursor;
26
27		static GutterMargin()
28		{
29		Stream cursorStream = Assembly.GetCallingAssembly().GetManifestResourceStream("ICSharpCode.TextEditor.Resources.RightArrow.cur");
30		RightLeftCursor = new Cursor(cursorStream);
31		cursorStream.Close();
32		}
33
34		public void Dispose()
35		{
36		numberStringFormat.Dispose();
37		}
38
39		public override Cursor Cursor {
40		get {
41		return RightLeftCursor;
42		}
43		}
44
45		public override Size Size {
46		get {
47		return new Size((int)(textArea.TextView.WideSpaceWidth
48		* Math.Max(3, (int)Math.Log10(textArea.Document.TotalNumberOfLines) + 1)),
49		-1);
50		}
51		}
52
53		public override bool IsVisible {
54		get {
55		return textArea.TextEditorProperties.ShowLineNumbers;
56		}
57		}
58
59		public GutterMargin(TextArea textArea) : base(textArea)
60		{
61		numberStringFormat.LineAlignment = StringAlignment.Far;
62		numberStringFormat.FormatFlags = StringFormatFlags.MeasureTrailingSpaces \| StringFormatFlags.FitBlackBox \|
63		StringFormatFlags.NoWrap \| StringFormatFlags.NoClip;
64		}
65
66		public override void Paint(Graphics g, Rectangle rect)
67		{
68		if (rect.Width <= 0 \|\| rect.Height <= 0) {
69		return;
70		}
71		HighlightColor lineNumberPainterColor = textArea.Document.HighlightingStrategy.GetColorFor("LineNumbers");
72		int fontHeight = textArea.TextView.FontHeight;
73		Brush fillBrush = textArea.Enabled ? BrushRegistry.GetBrush(lineNumberPainterColor.BackgroundColor) : SystemBrushes.InactiveBorder;
74		Brush drawBrush = BrushRegistry.GetBrush(lineNumberPainterColor.Color);
75		for (int y = 0; y < (DrawingPosition.Height + textArea.TextView.VisibleLineDrawingRemainder) / fontHeight + 1; ++y) {
76		int ypos = drawingPosition.Y + fontHeight * y - textArea.TextView.VisibleLineDrawingRemainder;
77		Rectangle backgroundRectangle = new Rectangle(drawingPosition.X, ypos, drawingPosition.Width, fontHeight);
78		if (rect.IntersectsWith(backgroundRectangle)) {
79		g.FillRectangle(fillBrush, backgroundRectangle);
80		int curLine = textArea.Document.GetFirstLogicalLine(textArea.Document.GetVisibleLine(textArea.TextView.FirstVisibleLine) + y);
81
82		if (curLine < textArea.Document.TotalNumberOfLines) {
83		g.DrawString((curLine + 1).ToString(),
84		lineNumberPainterColor.GetFont(TextEditorProperties.FontContainer),
85		drawBrush,
86		backgroundRectangle,
87		numberStringFormat);
88		}
89		}
90		}
91		}
92
93		public override void HandleMouseDown(Point mousepos, MouseButtons mouseButtons)
94		{
95		TextLocation selectionStartPos;
96
97		textArea.SelectionManager.selectFrom.where = WhereFrom.Gutter;
98		int realline = textArea.TextView.GetLogicalLine(mousepos.Y);
99		if (realline >= 0 && realline < textArea.Document.TotalNumberOfLines) {
100		// shift-select
101		if((Control.ModifierKeys & Keys.Shift) != 0) {
102		if(!textArea.SelectionManager.HasSomethingSelected && realline != textArea.Caret.Position.Y) {
103		if (realline >= textArea.Caret.Position.Y)
104		{ // at or below starting selection, place the cursor on the next line
105		// nothing is selected so make a new selection from cursor
106		selectionStartPos = textArea.Caret.Position;
107		// whole line selection - start of line to start of next line
108		if (realline < textArea.Document.TotalNumberOfLines - 1)
109		{
110		textArea.SelectionManager.SetSelection(new DefaultSelection(textArea.Document, selectionStartPos, new TextLocation(0, realline + 1)));
111		textArea.Caret.Position = new TextLocation(0, realline + 1);
112		}
113		else
114		{
115		textArea.SelectionManager.SetSelection(new DefaultSelection(textArea.Document, selectionStartPos, new TextLocation(textArea.Document.GetLineSegment(realline).Length + 1, realline)));
116		textArea.Caret.Position = new TextLocation(textArea.Document.GetLineSegment(realline).Length + 1, realline);
117		}
118		}
119		else
120		{ // prior lines to starting selection, place the cursor on the same line as the new selection
121		// nothing is selected so make a new selection from cursor
122		selectionStartPos = textArea.Caret.Position;
123		// whole line selection - start of line to start of next line
124		textArea.SelectionManager.SetSelection(new DefaultSelection(textArea.Document, selectionStartPos, new TextLocation(selectionStartPos.X, selectionStartPos.Y)));
125		textArea.SelectionManager.ExtendSelection(new TextLocation(selectionStartPos.X, selectionStartPos.Y), new TextLocation(0, realline));
126		textArea.Caret.Position = new TextLocation(0, realline);
127		}
128		}
129		else
130		{
131		// let MouseMove handle a shift-click in a gutter
132		MouseEventArgs e = new MouseEventArgs(mouseButtons, 1, mousepos.X, mousepos.Y, 0);
133		textArea.RaiseMouseMove(e);
134		}
135		} else { // this is a new selection with no shift-key
136		// sync the textareamousehandler mouse location
137		// (fixes problem with clicking out into a menu then back to the gutter whilst
138		// there is a selection)
139		textArea.mousepos = mousepos;
140
141		selectionStartPos = new TextLocation(0, realline);
142		textArea.SelectionManager.ClearSelection();
143		// whole line selection - start of line to start of next line
144		if (realline < textArea.Document.TotalNumberOfLines - 1)
145		{
146		textArea.SelectionManager.SetSelection(new DefaultSelection(textArea.Document, selectionStartPos, new TextLocation(selectionStartPos.X, selectionStartPos.Y + 1)));
147		textArea.Caret.Position = new TextLocation(selectionStartPos.X, selectionStartPos.Y + 1);
148		}
149		else
150		{
151		textArea.SelectionManager.SetSelection(new DefaultSelection(textArea.Document, new TextLocation(0, realline), new TextLocation(textArea.Document.GetLineSegment(realline).Length + 1, selectionStartPos.Y)));
152		textArea.Caret.Position = new TextLocation(textArea.Document.GetLineSegment(realline).Length + 1, selectionStartPos.Y);
153		}
154		}
155		}
156		}
157		}
158		}