public List<TagSpan<IOutliningRegionTag>> GetOutlineSpans(SyntaxNode node, ITextSnapshot textSnapshot,
IdeServices ideServices)
{
var ret = new List<TagSpan<IOutliningRegionTag>>();
var isBlock = IsBlock(node);
if (!isBlock)
{
return ret;
}
// always has an extra empty line?
var text = node.GetText();
var isOnlineBlock = text.Lines.Count <= 2;
if (isOnlineBlock)
{
return ret;
}
if (node.IsKind(SyntaxKind.MultiLineIfBlock))
{
var additionalSpan = AddAdditionalOutlinerForIfStatement(node, textSnapshot, ideServices);
if (additionalSpan != null)
{
ret.Add(additionalSpan);
}
}
var hint = GetCodeHint(textSnapshot, ideServices, node.FullSpan.Start, node.FullSpan.Length);
var span = new TagSpan<IOutliningRegionTag>(
new SnapshotSpan(textSnapshot, GetSpanStartPosition(node, text), GetSpanLength(node, text)),
new OutliningRegionTag(isDefaultCollapsed: false, isImplementation: true,
collapsedForm: "...", collapsedHintForm: hint));
ret.Add(span);
return ret;
}
public static FrameworkElement GetHint(SnapshotSpan span, IdeServices ideServices)
{
var x = new ElisionBufferDeferredContent(span,
ideServices.ProjectionBufferFactoryService,
ideServices.EditorOptionsFactoryService,
ideServices.TextEditorFactoryService);
return ideServices.UiDispatcher.Invoke(() => x.Create());
}
public List <TagSpan <IOutliningRegionTag> > GetOutlineSpans(SyntaxNode node, ITextSnapshot textSnapshot,
IdeServices ideServices)
{
var outliner = GetOutliner(node);
return(outliner == null ? new List <TagSpan <IOutliningRegionTag> >()
: outliner.GetOutlineSpan(node, textSnapshot, ideServices));
}
private static object GetCodeHint(ITextSnapshot textSnapshot, IdeServices ideServices,
int start, int len)
{
object hint;
try
{
hint = CollapsedHintCreator.GetHint(
new SnapshotSpan(textSnapshot,
start, len)
, ideServices);
}
catch (Exception ex)
{
hint = @"unable to generate hint, please see log (%appdata%\Roaming\nicologies\vbsharpoutliner.log) for details";
var srcCode = textSnapshot.GetText(start, Math.Min(len, textSnapshot.Length - start));
Logger.WriteLog(ex, srcCode);
}
return(hint);
}
public List<TagSpan<IOutliningRegionTag>> GetOutlineSpan(SyntaxNode node, ITextSnapshot textSnapshot,
IdeServices ideServices)
{
var ret = new List<TagSpan<IOutliningRegionTag>>();
var text = node.Parent.GetText();
var isOneLineBlock = text.Lines.Count <= 2;
if (isOneLineBlock)
{
return ret;
}
var hint = CollapsedHintCreator.GetHint(
new SnapshotSpan(textSnapshot, node.Parent.FullSpan.Start, node.Parent.FullSpan.Length),
ideServices);
var span = new TagSpan<IOutliningRegionTag>(
new SnapshotSpan(textSnapshot,
node.FullSpan.Start - 1,
GetSpanLength(node)),
new OutliningRegionTag(isDefaultCollapsed: false, isImplementation: true,
collapsedForm: "...", collapsedHintForm: hint));
ret.Add(span);
return ret;
}
public List<TagSpan<IOutliningRegionTag>> GetOutlineSpan(SyntaxNode node, ITextSnapshot textSnapshot,
IdeServices ideServices)
{
var ret = new List<TagSpan<IOutliningRegionTag>>();
var sectionSyntax = node as SwitchSectionSyntax;
if (sectionSyntax == null)
{
return ret;
}
var hint = CollapsedHintCreator.GetHint(
new SnapshotSpan(textSnapshot, sectionSyntax.FullSpan.Start,
sectionSyntax.FullSpan.Length),
ideServices);
var span = new TagSpan<IOutliningRegionTag>(
new SnapshotSpan(textSnapshot,
sectionSyntax.Statements.FullSpan.Start - 1,
sectionSyntax.Statements.FullSpan.Length - 1),
new OutliningRegionTag(isDefaultCollapsed: false, isImplementation: true,
collapsedForm: "...", collapsedHintForm:hint));
ret.Add(span);
return ret;
}
public List <TagSpan <IOutliningRegionTag> > GetOutlineSpans(SyntaxNode node, ITextSnapshot textSnapshot,
IdeServices ideServices)
{
var ret = new List <TagSpan <IOutliningRegionTag> >();
var isBlock = IsBlock(node);
if (!isBlock)
{
return(ret);
}
// always has an extra empty line?
var text = node.GetText();
var isOnlineBlock = text.Lines.Count <= 2;
if (isOnlineBlock)
{
return(ret);
}
if (node.IsKind(SyntaxKind.MultiLineIfBlock))
{
var additionalSpan = AddAdditionalOutlinerForIfStatement(node, textSnapshot, ideServices);
if (additionalSpan != null)
{
ret.Add(additionalSpan);
}
}
var hint = GetCodeHint(textSnapshot, ideServices, node.FullSpan.Start, node.FullSpan.Length);
var span = new TagSpan <IOutliningRegionTag>(
new SnapshotSpan(textSnapshot, GetSpanStartPosition(node, text), GetSpanLength(node, text)),
new OutliningRegionTag(isDefaultCollapsed: false, isImplementation: true,
collapsedForm: "...", collapsedHintForm: hint));
ret.Add(span);
return(ret);
}
public List <TagSpan <IOutliningRegionTag> > GetOutlineSpan(SyntaxNode node, ITextSnapshot textSnapshot,
IdeServices ideServices)
{
var ret = new List <TagSpan <IOutliningRegionTag> >();
var switcher = node as SwitchStatementSyntax;
if (switcher == null)
{
return(ret);
}
var hint = CollapsedHintCreator.GetHint(
new SnapshotSpan(textSnapshot, node.FullSpan.Start, node.FullSpan.Length),
ideServices);
var span = new TagSpan <IOutliningRegionTag>(
new SnapshotSpan(textSnapshot,
switcher.OpenBraceToken.FullSpan.Start - 1,
switcher.CloseBraceToken.FullSpan.End - switcher.OpenBraceToken.FullSpan.Start - 1),
new OutliningRegionTag(isDefaultCollapsed: false, isImplementation: true,
collapsedForm: "...",
collapsedHintForm: hint));
ret.Add(span);
return(ret);
}
public List <TagSpan <IOutliningRegionTag> > GetOutlineSpan(SyntaxNode node, ITextSnapshot textSnapshot,
IdeServices ideServices)
{
var ret = new List <TagSpan <IOutliningRegionTag> >();
var text = node.Parent.GetText();
var isOneLineBlock = text.Lines.Count <= 2;
if (isOneLineBlock)
{
return(ret);
}
var hint = CollapsedHintCreator.GetHint(
new SnapshotSpan(textSnapshot, node.Parent.FullSpan.Start, node.Parent.FullSpan.Length),
ideServices);
var span = new TagSpan <IOutliningRegionTag>(
new SnapshotSpan(textSnapshot,
node.FullSpan.Start - 1,
GetSpanLength(node)),
new OutliningRegionTag(isDefaultCollapsed: false, isImplementation: true,
collapsedForm: "...", collapsedHintForm: hint));
ret.Add(span);
return(ret);
}
private static TagSpan<IOutliningRegionTag> AddAdditionalOutlinerForIfStatement(SyntaxNode node,
ITextSnapshot textSnapshot, IdeServices ideServices)
{
var multiLineIf = node as MultiLineIfBlockSyntax;
Debug.Assert(multiLineIf != null, "multiLineIf != null");
var hasElse = multiLineIf.ElseIfBlocks.Any() || multiLineIf.ElseBlock != null;
if (multiLineIf.Statements.Count <= 1 || !hasElse)
{
return null;
}
var start = multiLineIf.Statements.Span.Start;
var len = multiLineIf.Statements.Span.Length;
var hint = GetCodeHint(textSnapshot, ideServices, multiLineIf.Statements.FullSpan.Start,
multiLineIf.Statements.FullSpan.Length);
var span = new TagSpan<IOutliningRegionTag>(
new SnapshotSpan(textSnapshot, start, len),
new OutliningRegionTag(isDefaultCollapsed: false, isImplementation: true,
collapsedForm: "...", collapsedHintForm: hint));
return span;
}
private static object GetCodeHint(ITextSnapshot textSnapshot, IdeServices ideServices,
int start, int len)
{
object hint;
try
{
hint = CollapsedHintCreator.GetHint(
new SnapshotSpan(textSnapshot,
start, len)
, ideServices);
}
catch (Exception ex)
{
hint = @"unable to generate hint, please see log (%appdata%\Roaming\nicologies\vbsharpoutliner.log) for details";
var srcCode = textSnapshot.GetText(start, Math.Min(len, textSnapshot.Length - start));
Logger.WriteLog(ex, srcCode);
}
return hint;
}
private static TagSpan <IOutliningRegionTag> AddAdditionalOutlinerForIfStatement(SyntaxNode node,
ITextSnapshot textSnapshot, IdeServices ideServices)
{
var multiLineIf = node as MultiLineIfBlockSyntax;
Debug.Assert(multiLineIf != null, "multiLineIf != null");
var hasElse = multiLineIf.ElseIfBlocks.Any() || multiLineIf.ElseBlock != null;
if (multiLineIf.Statements.Count <= 1 || !hasElse)
{
return(null);
}
var start = multiLineIf.Statements.Span.Start;
var len = multiLineIf.Statements.Span.Length;
var hint = GetCodeHint(textSnapshot, ideServices, multiLineIf.Statements.FullSpan.Start,
multiLineIf.Statements.FullSpan.Length);
var span = new TagSpan <IOutliningRegionTag>(
new SnapshotSpan(textSnapshot, start, len),
new OutliningRegionTag(isDefaultCollapsed: false, isImplementation: true,
collapsedForm: "...", collapsedHintForm: hint));
return(span);
}