/// <summary>
/// Constructor for the StructureMargin.
/// </summary>
/// <param name="textViewHost">The IWpfTextViewHost in which this margin will be displayed.</param>
public StructureMargin(IWpfTextViewHost textViewHost, IVerticalScrollBar scrollBar, StructureMarginFactory factory)
{
// Validate
if (textViewHost == null)
throw new ArgumentNullException("textViewHost");
this.structureMarginElement = new StructureMarginElement(textViewHost.TextView, scrollBar, factory);
}
/// <summary>
/// Constructor for the StructureMarginElement.
/// </summary>
/// <param name="textView">ITextView to which this StructureMargenElement will be attacheded.</param>
/// <param name="verticalScrollbar">Vertical scrollbar of the ITextViewHost that contains <paramref name="textView"/>.</param>
/// <param name="tagFactory">MEF tag factory.</param>
public StructureMarginElement(IWpfTextView textView, IVerticalScrollBar verticalScrollbar, StructureMarginFactory factory)
{
factory.LoadOption(textView.Options, StructureMarginElement.EnabledOptionId.Name);
factory.LoadOption(textView.Options, StructureMarginElement.MarginWidthId.Name);
factory.LoadOption(textView.Options, StructureMarginElement.MethodEllipseColorId.Name);
factory.LoadOption(textView.Options, StructureMarginElement.ClassColorId.Name);
factory.LoadOption(textView.Options, StructureMarginElement.ConditionalColorId.Name);
factory.LoadOption(textView.Options, StructureMarginElement.LoopColorId.Name);
factory.LoadOption(textView.Options, StructureMarginElement.MethodColorId.Name);
factory.LoadOption(textView.Options, StructureMarginElement.UnknownColorId.Name);
factory.LoadOption(textView.Options, StructureMarginElement.LineWidthId.Name);
factory.LoadOption(textView.Options, StructureMarginElement.GapWidthId.Name);
this.textView = textView;
this.scrollBar = verticalScrollbar;
this.SnapsToDevicePixels = true;
this.gapWidth = textView.Options.GetOptionValue(StructureMarginElement.GapWidthId);
this.lineWidth = textView.Options.GetOptionValue(StructureMarginElement.LineWidthId);
this.blockColoring = new BlockColoring(this.lineWidth,
textView.Options.GetOptionValue(StructureMarginElement.ClassColorId),
textView.Options.GetOptionValue(StructureMarginElement.ConditionalColorId),
textView.Options.GetOptionValue(StructureMarginElement.LoopColorId),
textView.Options.GetOptionValue(StructureMarginElement.MethodColorId),
textView.Options.GetOptionValue(StructureMarginElement.UnknownColorId));
this.tagger = factory.TagAggregatorFactoryService.CreateTagAggregator <IBlockTag>(textView);
Color methodColor = textView.Options.GetOptionValue(StructureMarginElement.MethodEllipseColorId);
if (methodColor.A != 0)
{
this.methodBrush = new SolidColorBrush(methodColor);
this.methodBrush.Freeze();
}
//Make our width big enough to see, but not so big that it consumes a lot of
//real-estate.
this.Width = textView.Options.GetOptionValue(StructureMarginElement.MarginWidthId);
this.OnOptionsChanged(null, null);
this.textView.Options.OptionChanged += this.OnOptionsChanged;
this.IsVisibleChanged += delegate(object sender, DependencyPropertyChangedEventArgs e)
{
if ((bool)e.NewValue)
{
//Hook up to the various events we need to keep the caret margin current.
this.tagger.BatchedTagsChanged += OnTagsChanged;
this.scrollBar.TrackSpanChanged += OnTrackSpanChanged;
//Force the margin to be rerendered since things might have changed while the margin was hidden.
this.InvalidateVisual();
}
else
{
this.tagger.BatchedTagsChanged -= OnTagsChanged;
this.scrollBar.TrackSpanChanged -= OnTrackSpanChanged;
}
};
}
/// <summary>
/// Constructor for the StructureMargin.
/// </summary>
/// <param name="textViewHost">The IWpfTextViewHost in which this margin will be displayed.</param>
public StructureMargin(IWpfTextViewHost textViewHost, IVerticalScrollBar scrollBar, StructureMarginFactory factory)
{
// Validate
if (textViewHost == null)
{
throw new ArgumentNullException("textViewHost");
}
this.structureMarginElement = new StructureMarginElement(textViewHost.TextView, scrollBar, factory);
}