102 lines
2.9 KiB
C#
102 lines
2.9 KiB
C#
// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
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// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
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using System;
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using System.Collections.ObjectModel;
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using System.ComponentModel;
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using System.Globalization;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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namespace ICSharpCode.AvalonEdit.CodeCompletion
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{
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/// <summary>
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/// Represents a text between "Up" and "Down" buttons.
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/// </summary>
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public class OverloadViewer : Control
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{
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static OverloadViewer()
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{
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DefaultStyleKeyProperty.OverrideMetadata(typeof(OverloadViewer),
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new FrameworkPropertyMetadata(typeof(OverloadViewer)));
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}
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/// <summary>
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/// The text property.
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/// </summary>
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public static readonly DependencyProperty TextProperty =
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DependencyProperty.Register("Text", typeof(string), typeof(OverloadViewer));
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/// <summary>
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/// Gets/Sets the text between the Up and Down buttons.
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/// </summary>
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public string Text {
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get { return (string)GetValue(TextProperty); }
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set { SetValue(TextProperty, value); }
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}
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/// <inheritdoc/>
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public override void OnApplyTemplate()
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{
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base.OnApplyTemplate();
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Button upButton = (Button)this.Template.FindName("PART_UP", this);
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upButton.Click += (sender, e) => {
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e.Handled = true;
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ChangeIndex(-1);
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};
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Button downButton = (Button)this.Template.FindName("PART_DOWN", this);
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downButton.Click += (sender, e) => {
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e.Handled = true;
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ChangeIndex(+1);
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};
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}
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/// <summary>
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/// The ItemProvider property.
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/// </summary>
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public static readonly DependencyProperty ProviderProperty =
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DependencyProperty.Register("Provider", typeof(IOverloadProvider), typeof(OverloadViewer));
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/// <summary>
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/// Gets/Sets the item provider.
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/// </summary>
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public IOverloadProvider Provider {
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get { return (IOverloadProvider)GetValue(ProviderProperty); }
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set { SetValue(ProviderProperty, value); }
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}
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/// <summary>
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/// Changes the selected index.
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/// </summary>
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/// <param name="relativeIndexChange">The relative index change - usual values are +1 or -1.</param>
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public void ChangeIndex(int relativeIndexChange)
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{
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IOverloadProvider p = this.Provider;
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if (p != null) {
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int newIndex = p.SelectedIndex + relativeIndexChange;
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if (newIndex < 0)
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newIndex = p.Count - 1;
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if (newIndex >= p.Count)
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newIndex = 0;
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p.SelectedIndex = newIndex;
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}
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}
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}
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sealed class CollapseIfSingleOverloadConverter : IValueConverter
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{
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public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
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{
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return ((int)value < 2) ? Visibility.Collapsed : Visibility.Visible;
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}
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public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
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{
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throw new NotImplementedException();
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}
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}
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}
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