public TagSpan <IOutliningRegionTag> AsOutliningRegionTag()
{
SnapshotSpan span = this.AsSnapshotSpan();
OutliningOptions opt = this.Tagger.Options;
//isImplementation means that block will collapse on "Collapse to definitions" command
//my stupid parser collapses top-level blocks in document, regions and top-level blocks in each region
//and also function bodies which it was able to detect
bool isImplementation =
RegionSubType == TextRegionSubType.Function ||
RegionType == TextRegionType.Region ||
Parent.RegionType == TextRegionType.None ||
Parent.RegionType == TextRegionType.Region;
// collapsed when opening a file
bool collapsed = false;
if (Tagger.FirstOutlining)
{
collapsed = isImplementation && opt.AutoCollapseToDefinitions;
if (!collapsed)
{
switch (RegionType)
{
case TextRegionType.Block:
case TextRegionType.Array:
collapsed = opt.AutoCollapseBraces;
break;
case TextRegionType.Comment:
collapsed = opt.AutoCollapseComments;
break;
case TextRegionType.Region:
collapsed = opt.AutoCollapseRegions;
break;
}
}
}
return(new TagSpan <IOutliningRegionTag>
(
span,
new OutliningRegionTag
(
collapsed,
isImplementation,
GetCollapsedText(),
new CollapsedHintFormatter(this).FormatHint()
)
));
}
protected virtual void Init()
{
Options = GetOptions();
//timer that will trigger outlining update after some period of no buffer changes
UpdateTimer = new DispatcherTimer(DispatcherPriority.ApplicationIdle);
UpdateTimer.Interval = TimeSpan.FromMilliseconds(2500);
FirstOutlining = true;
UpdateTimer.Tick += (sender, args) => {
UpdateTimer.Stop();
Outline();
};
//bind to events and start outlining
if (VsVersion.Major < 14)
{
//VS 2012 and 2013
Outline();
Classifier.ClassificationChanged += (sender, args) => {
//restart the timer
UpdateTimer.Stop();
UpdateTimer.Start();
};
}
else
{
//VS 2015
Classifier.ClassificationChanged += (sender, args) => {
if (FirstOutlining)
{
Outline();
}
else
{
//restart the timer
UpdateTimer.Stop();
UpdateTimer.Start();
}
};
}
}