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source: branches/crossvalidation-2434/HeuristicLab.ExtLibs/HeuristicLab.AvalonEdit/5.0.1/AvalonEdit-5.0.1/CodeCompletion/InsightWindow.cs @ 13791

Last change on this file since 13791 was 11700, checked in by jkarder, 10 years ago

#2077: created branch and added first version

File size: 3.8 KB
Line 
1// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
2//
3// Permission is hereby granted, free of charge, to any person obtaining a copy of this
4// software and associated documentation files (the "Software"), to deal in the Software
5// without restriction, including without limitation the rights to use, copy, modify, merge,
6// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
7// to whom the Software is furnished to do so, subject to the following conditions:
8//
9// The above copyright notice and this permission notice shall be included in all copies or
10// substantial portions of the Software.
11//
12// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
13// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
14// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
15// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
16// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
17// DEALINGS IN THE SOFTWARE.
18
19using System;
20using System.Windows;
21using System.Windows.Controls;
22using ICSharpCode.AvalonEdit.Editing;
23using ICSharpCode.AvalonEdit.Utils;
24
25namespace ICSharpCode.AvalonEdit.CodeCompletion
26{
27  /// <summary>
28  /// A popup-like window that is attached to a text segment.
29  /// </summary>
30  public class InsightWindow : CompletionWindowBase
31  {
32    static InsightWindow()
33    {
34      DefaultStyleKeyProperty.OverrideMetadata(typeof(InsightWindow),
35                                               new FrameworkPropertyMetadata(typeof(InsightWindow)));
36      AllowsTransparencyProperty.OverrideMetadata(typeof(InsightWindow),
37                                                  new FrameworkPropertyMetadata(Boxes.True));
38    }
39   
40    /// <summary>
41    /// Creates a new InsightWindow.
42    /// </summary>
43    public InsightWindow(TextArea textArea) : base(textArea)
44    {
45      this.CloseAutomatically = true;
46      AttachEvents();
47    }
48   
49    /// <inheritdoc/>
50    protected override void OnSourceInitialized(EventArgs e)
51    {
52      Rect caret = this.TextArea.Caret.CalculateCaretRectangle();
53      Point pointOnScreen = this.TextArea.TextView.PointToScreen(caret.Location - this.TextArea.TextView.ScrollOffset);
54      Rect workingArea = System.Windows.Forms.Screen.FromPoint(pointOnScreen.ToSystemDrawing()).WorkingArea.ToWpf().TransformFromDevice(this);
55     
56      MaxHeight = workingArea.Height;
57      MaxWidth = Math.Min(workingArea.Width, Math.Max(1000, workingArea.Width * 0.6));
58     
59      base.OnSourceInitialized(e);
60    }
61   
62    /// <summary>
63    /// Gets/Sets whether the insight window should close automatically.
64    /// The default value is true.
65    /// </summary>
66    public bool CloseAutomatically { get; set; }
67   
68    /// <inheritdoc/>
69    protected override bool CloseOnFocusLost {
70      get { return this.CloseAutomatically; }
71    }
72   
73    void AttachEvents()
74    {
75      this.TextArea.Caret.PositionChanged += CaretPositionChanged;
76    }
77   
78    /// <inheritdoc/>
79    protected override void DetachEvents()
80    {
81      this.TextArea.Caret.PositionChanged -= CaretPositionChanged;
82      base.DetachEvents();
83    }
84   
85    void CaretPositionChanged(object sender, EventArgs e)
86    {
87      if (this.CloseAutomatically) {
88        int offset = this.TextArea.Caret.Offset;
89        if (offset < this.StartOffset || offset > this.EndOffset) {
90          Close();
91        }
92      }
93    }
94  }
95 
96  /// <summary>
97  /// TemplateSelector for InsightWindow to replace plain string content by a TextBlock with TextWrapping.
98  /// </summary>
99  internal sealed class InsightWindowTemplateSelector : DataTemplateSelector
100  {
101    public override DataTemplate SelectTemplate(object item, DependencyObject container)
102    {
103      if (item is string)
104        return (DataTemplate)((FrameworkElement)container).FindResource("TextBlockTemplate");
105     
106      return null;
107    }
108  }
109}
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