Code Coverage Statistics for Source File

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

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// <file>
//     <copyright see="prj:///doc/copyright.txt"/>
//     <license see="prj:///doc/license.txt"/>
//     <owner name="Mike Krüger" email="mike@icsharpcode.net"/>
//     <version>$Revision: 2681 $</version>
// </file>

using System;
using System.Drawing;
using System.Windows.Forms;

namespace ICSharpCode.TextEditor.Gui.CompletionWindow
{
	/// <summary>
	/// Description of AbstractCompletionWindow.
	/// </summary>
	public abstract class AbstractCompletionWindow : System.Windows.Forms.Form
	{
		protected TextEditorControl control;
		protected Size              drawingSize;
		Rectangle workingScreen;
		Form parentForm;
		
		protected AbstractCompletionWindow(Form parentForm, TextEditorControl control)
		{
			workingScreen = Screen.GetWorkingArea(parentForm);
//			SetStyle(ControlStyles.Selectable, false);
			this.parentForm = parentForm;
			this.control  = control;
			
			SetLocation();
			StartPosition   = FormStartPosition.Manual;
			FormBorderStyle = FormBorderStyle.None;
			ShowInTaskbar   = false;
			MinimumSize     = new Size(1, 1);
			Size            = new Size(1, 1);
		}
		
		protected virtual void SetLocation()
		{
			TextArea textArea = control.ActiveTextAreaControl.TextArea;
			TextLocation caretPos  = textArea.Caret.Position;
			
			int xpos = textArea.TextView.GetDrawingXPos(caretPos.Y, caretPos.X);
			int rulerHeight = textArea.TextEditorProperties.ShowHorizontalRuler ? textArea.TextView.FontHeight : 0;
			Point pos = new Point(textArea.TextView.DrawingPosition.X + xpos,
			                      textArea.TextView.DrawingPosition.Y + (textArea.Document.GetVisibleLine(caretPos.Y)) * textArea.TextView.FontHeight 
			                      - textArea.TextView.TextArea.VirtualTop.Y + textArea.TextView.FontHeight + rulerHeight);
			
			Point location = control.ActiveTextAreaControl.PointToScreen(pos);
			
			// set bounds
			Rectangle bounds = new Rectangle(location, drawingSize);
			
			if (!workingScreen.Contains(bounds)) {
				if (bounds.Right > workingScreen.Right) {
					bounds.X = workingScreen.Right - bounds.Width;
				}
				if (bounds.Left < workingScreen.Left) {
					bounds.X = workingScreen.Left;
				}
				if (bounds.Top < workingScreen.Top) {
					bounds.Y = workingScreen.Top;
				}
				if (bounds.Bottom > workingScreen.Bottom) {
					bounds.Y = bounds.Y - bounds.Height - control.ActiveTextAreaControl.TextArea.TextView.FontHeight;
					if (bounds.Bottom > workingScreen.Bottom) {
						bounds.Y = workingScreen.Bottom - bounds.Height;
					}
				}
			}
			Bounds = bounds;
		}
		
		protected override CreateParams CreateParams {
			get {
				CreateParams p = base.CreateParams;
				AddShadowToWindow(p);
				return p;
			}
		}
		
		static int shadowStatus;
		
		/// <summary>
		/// Adds a shadow to the create params if it is supported by the operating system.
		/// </summary>
		public static void AddShadowToWindow(CreateParams createParams)
		{
			if (shadowStatus == 0) {
				// Test OS version
				shadowStatus = -1; // shadow not supported
				if (Environment.OSVersion.Platform == PlatformID.Win32NT) {
					Version ver = Environment.OSVersion.Version;
					if (ver.Major > 5 || ver.Major == 5 && ver.Minor >= 1) {
						shadowStatus = 1;
					}
				}
			}
			if (shadowStatus == 1) {
				createParams.ClassStyle |= 0x00020000; // set CS_DROPSHADOW
			}
		}
		
		protected override bool ShowWithoutActivation {
			get {
				return true;
			}
		}
		
		protected void ShowCompletionWindow()
		{
			Owner = parentForm;
			Enabled = true;
			this.Show();
			
			control.Focus();
			
			if (parentForm != null) {
				parentForm.LocationChanged += new EventHandler(this.ParentFormLocationChanged);
			}
			
			control.ActiveTextAreaControl.VScrollBar.ValueChanged     += new EventHandler(ParentFormLocationChanged);
			control.ActiveTextAreaControl.HScrollBar.ValueChanged     += new EventHandler(ParentFormLocationChanged);
			control.ActiveTextAreaControl.TextArea.DoProcessDialogKey += new DialogKeyProcessor(ProcessTextAreaKey);
			control.ActiveTextAreaControl.Caret.PositionChanged       += new EventHandler(CaretOffsetChanged);
			control.ActiveTextAreaControl.TextArea.LostFocus          += new EventHandler(this.TextEditorLostFocus);
			control.Resize += new EventHandler(ParentFormLocationChanged);
			
			foreach (Control c in Controls) {
				c.MouseMove += ControlMouseMove;
			}
		}
		
		void ParentFormLocationChanged(object sender, EventArgs e)
		{
			SetLocation();
		}
		
		public virtual bool ProcessKeyEvent(char ch)
		{
			return false;
		}
		
		protected virtual bool ProcessTextAreaKey(Keys keyData)
		{
			if (!Visible) {
				return false;
			}
			switch (keyData) {
				case Keys.Escape:
					Close();
					return true;
			}
			return false;
		}
		
		protected virtual void CaretOffsetChanged(object sender, EventArgs e)
		{
		}
		
		protected void TextEditorLostFocus(object sender, EventArgs e)
		{
			if (!control.ActiveTextAreaControl.TextArea.Focused && !this.ContainsFocus) {
				Close();
			}
		}
		
		protected override void OnClosed(EventArgs e)
		{
			base.OnClosed(e);
			
			// take out the inserted methods
			parentForm.LocationChanged -= new EventHandler(ParentFormLocationChanged);
			
			foreach (Control c in Controls) {
				c.MouseMove -= ControlMouseMove;
			}
			
			if (control.ActiveTextAreaControl.VScrollBar != null) {
				control.ActiveTextAreaControl.VScrollBar.ValueChanged -= new EventHandler(ParentFormLocationChanged);
			}
			if (control.ActiveTextAreaControl.HScrollBar != null) {
				control.ActiveTextAreaControl.HScrollBar.ValueChanged -= new EventHandler(ParentFormLocationChanged);
			}
			
			control.ActiveTextAreaControl.TextArea.LostFocus          -= new EventHandler(this.TextEditorLostFocus);
			control.ActiveTextAreaControl.Caret.PositionChanged       -= new EventHandler(CaretOffsetChanged);
			control.ActiveTextAreaControl.TextArea.DoProcessDialogKey -= new DialogKeyProcessor(ProcessTextAreaKey);
			control.Resize -= new EventHandler(ParentFormLocationChanged);
			Dispose();
		}
		
		protected override void OnMouseMove(MouseEventArgs e)
		{
			base.OnMouseMove(e);
			ControlMouseMove(this, e);
		}
		
		/// <summary>
		/// Invoked when the mouse moves over this form or any child control.
		/// Shows the mouse cursor on the text area if it has been hidden.
		/// </summary>
		/// <remarks>
		/// Derived classes should attach this handler to the MouseMove event
		/// of all created controls which are not added to the Controls
		/// collection.
		/// </remarks>
		protected void ControlMouseMove(object sender, MouseEventArgs e)
		{
			control.ActiveTextAreaControl.TextArea.ShowHiddenCursor(false);
		}
	}
}

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: 2681 $</version>
6		// </file>
7
8		using System;
9		using System.Drawing;
10		using System.Windows.Forms;
11
12		namespace ICSharpCode.TextEditor.Gui.CompletionWindow
13		{
14		/// <summary>
15		/// Description of AbstractCompletionWindow.
16		/// </summary>
17		public abstract class AbstractCompletionWindow : System.Windows.Forms.Form
18		{
19		protected TextEditorControl control;
20		protected Size drawingSize;
21		Rectangle workingScreen;
22		Form parentForm;
23
24		protected AbstractCompletionWindow(Form parentForm, TextEditorControl control)
25		{
26		workingScreen = Screen.GetWorkingArea(parentForm);
27		// SetStyle(ControlStyles.Selectable, false);
28		this.parentForm = parentForm;
29		this.control = control;
30
31		SetLocation();
32		StartPosition = FormStartPosition.Manual;
33		FormBorderStyle = FormBorderStyle.None;
34		ShowInTaskbar = false;
35		MinimumSize = new Size(1, 1);
36		Size = new Size(1, 1);
37		}
38
39		protected virtual void SetLocation()
40		{
41		TextArea textArea = control.ActiveTextAreaControl.TextArea;
42		TextLocation caretPos = textArea.Caret.Position;
43
44		int xpos = textArea.TextView.GetDrawingXPos(caretPos.Y, caretPos.X);
45		int rulerHeight = textArea.TextEditorProperties.ShowHorizontalRuler ? textArea.TextView.FontHeight : 0;
46		Point pos = new Point(textArea.TextView.DrawingPosition.X + xpos,
47		textArea.TextView.DrawingPosition.Y + (textArea.Document.GetVisibleLine(caretPos.Y)) * textArea.TextView.FontHeight
48		- textArea.TextView.TextArea.VirtualTop.Y + textArea.TextView.FontHeight + rulerHeight);
49
50		Point location = control.ActiveTextAreaControl.PointToScreen(pos);
51
52		// set bounds
53		Rectangle bounds = new Rectangle(location, drawingSize);
54
55		if (!workingScreen.Contains(bounds)) {
56		if (bounds.Right > workingScreen.Right) {
57		bounds.X = workingScreen.Right - bounds.Width;
58		}
59		if (bounds.Left < workingScreen.Left) {
60		bounds.X = workingScreen.Left;
61		}
62		if (bounds.Top < workingScreen.Top) {
63		bounds.Y = workingScreen.Top;
64		}
65		if (bounds.Bottom > workingScreen.Bottom) {
66		bounds.Y = bounds.Y - bounds.Height - control.ActiveTextAreaControl.TextArea.TextView.FontHeight;
67		if (bounds.Bottom > workingScreen.Bottom) {
68		bounds.Y = workingScreen.Bottom - bounds.Height;
69		}
70		}
71		}
72		Bounds = bounds;
73		}
74
75		protected override CreateParams CreateParams {
76		get {
77		CreateParams p = base.CreateParams;
78		AddShadowToWindow(p);
79		return p;
80		}
81		}
82
83		static int shadowStatus;
84
85		/// <summary>
86		/// Adds a shadow to the create params if it is supported by the operating system.
87		/// </summary>
88		public static void AddShadowToWindow(CreateParams createParams)
89		{
90		if (shadowStatus == 0) {
91		// Test OS version
92		shadowStatus = -1; // shadow not supported
93		if (Environment.OSVersion.Platform == PlatformID.Win32NT) {
94		Version ver = Environment.OSVersion.Version;
95		if (ver.Major > 5 \|\| ver.Major == 5 && ver.Minor >= 1) {
96		shadowStatus = 1;
97		}
98		}
99		}
100		if (shadowStatus == 1) {
101		createParams.ClassStyle \|= 0x00020000; // set CS_DROPSHADOW
102		}
103		}
104
105		protected override bool ShowWithoutActivation {
106		get {
107		return true;
108		}
109		}
110
111		protected void ShowCompletionWindow()
112		{
113		Owner = parentForm;
114		Enabled = true;
115		this.Show();
116
117		control.Focus();
118
119		if (parentForm != null) {
120		parentForm.LocationChanged += new EventHandler(this.ParentFormLocationChanged);
121		}
122
123		control.ActiveTextAreaControl.VScrollBar.ValueChanged += new EventHandler(ParentFormLocationChanged);
124		control.ActiveTextAreaControl.HScrollBar.ValueChanged += new EventHandler(ParentFormLocationChanged);
125		control.ActiveTextAreaControl.TextArea.DoProcessDialogKey += new DialogKeyProcessor(ProcessTextAreaKey);
126		control.ActiveTextAreaControl.Caret.PositionChanged += new EventHandler(CaretOffsetChanged);
127		control.ActiveTextAreaControl.TextArea.LostFocus += new EventHandler(this.TextEditorLostFocus);
128		control.Resize += new EventHandler(ParentFormLocationChanged);
129
130		foreach (Control c in Controls) {
131		c.MouseMove += ControlMouseMove;
132		}
133		}
134
135		void ParentFormLocationChanged(object sender, EventArgs e)
136		{
137		SetLocation();
138		}
139
140		public virtual bool ProcessKeyEvent(char ch)
141		{
142		return false;
143		}
144
145		protected virtual bool ProcessTextAreaKey(Keys keyData)
146		{
147		if (!Visible) {
148		return false;
149		}
150		switch (keyData) {
151		case Keys.Escape:
152		Close();
153		return true;
154		}
155		return false;
156		}
157
158		protected virtual void CaretOffsetChanged(object sender, EventArgs e)
159		{
160		}
161
162		protected void TextEditorLostFocus(object sender, EventArgs e)
163		{
164		if (!control.ActiveTextAreaControl.TextArea.Focused && !this.ContainsFocus) {
165		Close();
166		}
167		}
168
169		protected override void OnClosed(EventArgs e)
170		{
171		base.OnClosed(e);
172
173		// take out the inserted methods
174		parentForm.LocationChanged -= new EventHandler(ParentFormLocationChanged);
175
176		foreach (Control c in Controls) {
177		c.MouseMove -= ControlMouseMove;
178		}
179
180		if (control.ActiveTextAreaControl.VScrollBar != null) {
181		control.ActiveTextAreaControl.VScrollBar.ValueChanged -= new EventHandler(ParentFormLocationChanged);
182		}
183		if (control.ActiveTextAreaControl.HScrollBar != null) {
184		control.ActiveTextAreaControl.HScrollBar.ValueChanged -= new EventHandler(ParentFormLocationChanged);
185		}
186
187		control.ActiveTextAreaControl.TextArea.LostFocus -= new EventHandler(this.TextEditorLostFocus);
188		control.ActiveTextAreaControl.Caret.PositionChanged -= new EventHandler(CaretOffsetChanged);
189		control.ActiveTextAreaControl.TextArea.DoProcessDialogKey -= new DialogKeyProcessor(ProcessTextAreaKey);
190		control.Resize -= new EventHandler(ParentFormLocationChanged);
191		Dispose();
192		}
193
194		protected override void OnMouseMove(MouseEventArgs e)
195		{
196		base.OnMouseMove(e);
197		ControlMouseMove(this, e);
198		}
199
200		/// <summary>
201		/// Invoked when the mouse moves over this form or any child control.
202		/// Shows the mouse cursor on the text area if it has been hidden.
203		/// </summary>
204		/// <remarks>
205		/// Derived classes should attach this handler to the MouseMove event
206		/// of all created controls which are not added to the Controls
207		/// collection.
208		/// </remarks>
209		protected void ControlMouseMove(object sender, MouseEventArgs e)
210		{
211		control.ActiveTextAreaControl.TextArea.ShowHiddenCursor(false);
212		}
213		}
214		}