public RoslynBlockTag(
IThreadingContext threadingContext,
ITextEditorFactoryService textEditorFactoryService,
IProjectionBufferFactoryService projectionBufferFactoryService,
IEditorOptionsFactoryService editorOptionsFactoryService,
IBlockTag parent,
ITextSnapshot snapshot,
BlockSpan blockSpan)
: base(
span: blockSpan.TextSpan.ToSnapshotSpan(snapshot),
statementSpan: blockSpan.HintSpan.ToSnapshotSpan(snapshot),
parent: parent,
type: blockSpan.Type,
isCollapsible: blockSpan.IsCollapsible,
isDefaultCollapsed: blockSpan.IsDefaultCollapsed,
isImplementation: blockSpan.AutoCollapse,
collapsedForm: null,
collapsedHintForm: null)
{
_state = new BlockTagState(
threadingContext,
textEditorFactoryService, projectionBufferFactoryService,
editorOptionsFactoryService, snapshot, blockSpan);
Level = parent == null ? 0 : parent.Level + 1;
}
public VisibleBlock(IBlockTag tag, double x, double yTop, double yBottom)
{
this.tag = tag;
this.x = x;
this.yTop = yTop;
this.yBottom = yBottom;
}
public RoslynBlockContext(
RoslynBlockContextProvider provider,
IBlockTag blockTag,
ITextView textView)
{
_provider = provider;
BlockTag = blockTag;
TextView = textView;
}
public RoslynBlockContext(
RoslynBlockContextProvider provider,
IBlockTag blockTag,
ITextView textView)
{
_provider = provider;
BlockTag = blockTag;
TextView = textView;
}
public bool UpdateTip(IVerticalScrollBar margin, MouseEventArgs e, ToolTip tip)
{
if ((!_textView.IsClosed) && (_tagger != null) && _previewEnabled)
{
Point pt = e.GetPosition(this);
if ((pt.X >= 0.0) && (pt.X <= this.Width))
{
SnapshotPoint position = _scrollBar.GetBufferPositionOfYCoordinate(pt.Y);
IBlockTag deepestTag = null;
var tags = _tagger.GetTags(new SnapshotSpan(position, 0));
foreach (var tagSpan in tags)
{
if (tagSpan.Tag.Type != BlockType.Unknown)
{
if ((deepestTag == null) || (tagSpan.Tag.Level > deepestTag.Level))
{
deepestTag = tagSpan.Tag;
}
}
}
if (deepestTag != null)
{
if (tip.IsOpen)
{
var existingContext = tip.Content as FrameworkElement;
if ((existingContext != null) && (existingContext.Tag == deepestTag))
{
// No changes from the last time we opened the tip.
return(true);
}
}
FrameworkElement context = deepestTag.Context(_coloring,
_textView.FormattedLineSource.DefaultTextProperties);
context.Tag = deepestTag;
//The width of the view is in zoomed coordinates so factor the zoom factor into the tip window width computation.
double zoom = _textView.ZoomLevel / 100.0;
tip.MinWidth = tip.MaxWidth = Math.Floor(Math.Max(50.0, _textView.ViewportWidth * zoom * 0.5));
tip.MinHeight = tip.MaxHeight = context.Height + 12.0;
tip.Content = context;
tip.IsOpen = true;
StructureMarginElement.LogTipOpened("VS/PPT-Structure/MarginTipOpened", context);
return(true);
}
}
}
return(false);
}
public RoslynBlockContext(
RoslynBlockContextProvider provider,
IBlockTag blockTag,
ITextView textView)
: base(provider.ThreadingContext)
{
_provider = provider;
BlockTag = blockTag;
TextView = textView;
}
private void AddBlockTags(List <IBlockTag> result, IBlockTag blockTag)
{
if (blockTag == null)
{
return;
}
AddBlockTags(result, blockTag.Parent);
result.Add(blockTag);
}
public Task<IBlockContext> GetBlockContextAsync(
IBlockTag blockTag, ITextView view, CancellationToken token)
{
if (blockTag is RoslynOutliningRegionTag)
{
var result = new RoslynBlockContext(_provider, blockTag, view);
return Task.FromResult<IBlockContext>(result);
}
return SpecializedTasks.Default<IBlockContext>();
}
public Task <IBlockContext> GetBlockContextAsync(
IBlockTag blockTag, ITextView view, CancellationToken token)
{
if (blockTag is RoslynBlockTag)
{
var result = new RoslynBlockContext(_provider, blockTag, view);
return(Task.FromResult <IBlockContext>(result));
}
return(SpecializedTasks.Default <IBlockContext>());
}
public BlockTag(SnapshotSpan span, SnapshotSpan statementSpan, IBlockTag parent, string type, bool isCollapsible, bool isDefaultCollapsed, bool isImplementation, object collapsedForm, object collapsedHintForm)
{
this.Span = span;
this.Level = (parent == null) ? 0 : (parent.Level + 1);
this.StatementSpan = statementSpan;
this.Parent = parent;
this.Type = type;
this.IsCollapsible = isCollapsible;
this.IsDefaultCollapsed = isDefaultCollapsed;
this.IsImplementation = isImplementation;
this.CollapsedForm = collapsedForm;
this.CollapsedHintForm = collapsedHintForm;
}
public RoslynBlockTag(
ITextEditorFactoryService textEditorFactoryService,
IProjectionBufferFactoryService projectionBufferFactoryService,
IEditorOptionsFactoryService editorOptionsFactoryService,
IBlockTag parent,
ITextSnapshot snapshot,
BlockSpan blockSpan) :
base(textEditorFactoryService,
projectionBufferFactoryService,
editorOptionsFactoryService,
snapshot, blockSpan)
{
Parent = parent;
Level = parent == null ? 0 : parent.Level + 1;
Span = blockSpan.TextSpan.ToSnapshotSpan(snapshot);
StatementSpan = blockSpan.HintSpan.ToSnapshotSpan(snapshot);
}
public Task <IBlockContext> GetBlockContextAsync(IBlockTag blockTag, ITextView view, CancellationToken token)
{
var contentLines = new List <string>();
IBlockTag tag = blockTag;
do
{
string indent = new string(' ', tag.Level * 4);
string line = indent + GetStatement(tag);
contentLines.Add(line);
}while ((tag = tag.Parent) != null);
contentLines.Reverse();
string content = string.Join(Environment.NewLine, contentLines);
var context = new BraceBlockContext(view, blockTag, content);
return(Task.FromResult <IBlockContext>(context));
}
public bool UpdateTip(IOverviewMargin margin, MouseEventArgs e, ToolTip tip)
{
if (!this.textView.IsClosed)
{
Point pt = e.GetPosition(this);
if ((pt.X >= 0.0) && (pt.X <= MarginWidth))
{
SnapshotPoint position = this.scrollBar.GetBufferPositionOfYCoordinate(pt.Y);
IBlockTag deepestTag = null;
var tags = this.tagger.GetTags(new SnapshotSpan(position, 0));
foreach (var tagSpan in tags)
{
if (tagSpan.Tag.Type != BlockType.Unknown)
{
if ((deepestTag == null) || (tagSpan.Tag.Level > deepestTag.Level))
{
deepestTag = tagSpan.Tag;
}
}
}
if (deepestTag != null)
{
tip.IsOpen = true;
FrameworkElement context = deepestTag.Context(this.blockColoring,
this.textView.FormattedLineSource.DefaultTextProperties.Typeface,
this.textView.FormattedLineSource.DefaultTextProperties.FontRenderingEmSize);
//The width of the view is in zoomed coordinates so factor the zoom factor into the tip window width computation.
double zoom = this.textView.ZoomLevel / 100.0;
tip.MinWidth = tip.MaxWidth = Math.Floor(Math.Max(50.0, this.textView.ViewportWidth * zoom * 0.5));
tip.MinHeight = tip.MaxHeight = context.Height + 12.0;
tip.Content = context;
return(true);
}
}
}
return(false);
}
private static string GetStatement(IBlockTag blockTag)
{
string statement = string.Empty;
var snapshot = blockTag.Span.Snapshot;
var braceLine = snapshot.GetLineFromPosition(blockTag.Span.Start);
int braceOffset = blockTag.Span.Start - braceLine.Start;
string textBeforeBrace = braceLine.GetText().Substring(0, braceOffset).Trim();
if (textBeforeBrace.Length > 0)
{
statement = textBeforeBrace;
}
else if (braceLine.LineNumber > 0)
{
var lastLine = snapshot.GetLineFromLineNumber(braceLine.LineNumber - 1);
statement = lastLine.GetText().Trim();
}
return(statement);
}
/// <summary>
/// Initializes a new instance of <see cref="IBlockContext"/> with the specified block tag.
/// </summary>
/// <param name="blockTag">The block tag associated with the structural block.</param>
/// <param name="view">The text view associated with the structural block.</param>
/// <param name="content">The content, including hiearchical parent statements, to be displayed in the tooltip.</param>
public BlockContext(IBlockTag blockTag, ITextView view, object content)
{
if (blockTag == null)
{
throw new ArgumentNullException(nameof(blockTag));
}
if (view == null)
{
throw new ArgumentNullException(nameof(view));
}
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
_blockTag = blockTag;
_view = view;
_content = content;
}
public RoslynBlockTag(
ITextEditorFactoryService textEditorFactoryService,
IProjectionBufferFactoryService projectionBufferFactoryService,
IEditorOptionsFactoryService editorOptionsFactoryService,
IBlockTag parent,
ITextSnapshot snapshot,
BlockSpan blockSpan) :
base(span: blockSpan.TextSpan.ToSnapshotSpan(snapshot),
statementSpan: blockSpan.HintSpan.ToSnapshotSpan(snapshot),
parent: parent,
type: blockSpan.Type,
isCollapsible: blockSpan.IsCollapsible,
isDefaultCollapsed: blockSpan.IsDefaultCollapsed,
isImplementation: blockSpan.AutoCollapse,
collapsedForm: null,
collapsedHintForm: null)
{
_state = new BlockTagState(
textEditorFactoryService, projectionBufferFactoryService,
editorOptionsFactoryService, snapshot, blockSpan);
Level = parent == null ? 0 : parent.Level + 1;
}
private void CreateBlockAdornment(IBlockTag tag, SnapshotSpan span, double x, double yTop, double yBottom)
{
LineGeometry line = new LineGeometry(new Point(x, yTop), new Point(x, yBottom));
GeometryDrawing drawing = new GeometryDrawing(null, this.blockColoring.GetPen(tag), line);
drawing.Freeze();
DrawingImage drawingImage = new DrawingImage(drawing);
drawingImage.Freeze();
Image image = new Image();
image.Source = drawingImage;
VisibleBlock block = new VisibleBlock(tag, x, yTop, yBottom);
Canvas.SetLeft(image, x);
Canvas.SetTop(image, yTop);
this.layer.AddAdornment(AdornmentPositioningBehavior.TextRelative, span, block, image, OnAdornmentRemoved);
this.visibleBlocks.Add(block);
}
public Color GetColor(IBlockTag tag)
{
return this.GetColoring(tag.Type).Color;
}
private void AddBlockTags(List<IBlockTag> result, IBlockTag blockTag)
{
if (blockTag == null)
{
return;
}
AddBlockTags(result, blockTag.Parent);
result.Add(blockTag);
}
public Brush GetLineBrush(IBlockTag tag)
{
return this.GetColoring(tag.Type).LineBrush;
}
public Pen GetLinePen(IBlockTag tag)
{
return this.GetColoring(tag.Type).LinePen;
}
public Brush GetToolTipBrush(IBlockTag tag)
{
return this.GetColoring(tag.Type).ToolTipBrush;
}
public Pen GetToolTipPen(IBlockTag tag)
{
return this.GetColoring(tag.Type).ToolTipPen;
}
public Color GetColor(IBlockTag tag)
{
return(this.GetColoring(tag.Type).Color);
}
public Brush GetBrush(IBlockTag tag)
{
return(this.GetColoring(tag.Type).Brush);
}
public Pen GetPen(IBlockTag tag)
{
return(this.GetColoring(tag.Type).Pen);
}
public BraceBlockContext(ITextView textView, IBlockTag blockTag, object content)
{
TextView = textView;
BlockTag = blockTag;
Content = content;
}
public BraceBlockTag(SnapshotSpan span, SnapshotSpan statementSpan, IBlockTag parent) :
base(span, statementSpan, parent, "block", true, true, true, "...", GetCollapsedFormHint(span))
{
_text = span.GetText();
}
