internal protected override void Draw(Cairo.Context cr, Cairo.Rectangle area, DocumentLine lineSegment, int line, double x, double y, double lineHeight)
{
MarginMarker marker = null;
if (lineSegment != null)
{
foreach (var m in editor.Document.GetMarkers(lineSegment))
{
var mm = m as MarginMarker;
if (mm != null && mm.CanDraw(this))
{
marker = mm;
break;
}
}
}
if (marker != null)
{
bool hasDrawn = marker.DrawBackground(editor, cr, new MarginDrawMetrics(this, area, lineSegment, line, x, y, lineHeight));
if (!hasDrawn)
{
marker = null;
}
}
foldSegmentSize = marginWidth * 4 / 6;
foldSegmentSize -= (foldSegmentSize) % 2;
Cairo.Rectangle drawArea = new Cairo.Rectangle(x, y, marginWidth, lineHeight);
var state = editor.Document.GetLineState(lineSegment);
bool isFoldStart = false;
bool isContaining = false;
bool isFoldEnd = false;
bool isStartSelected = false;
bool isContainingSelected = false;
bool isEndSelected = false;
if (editor.Options.ShowFoldMargin && line <= editor.Document.LineCount)
{
startFoldings.Clear();
containingFoldings.Clear();
endFoldings.Clear();
if (lineSegment != null)
{
foreach (FoldSegment segment in editor.Document.GetFoldingContaining(lineSegment))
{
if (segment.GetStartLine(editor.Document)?.Offset == lineSegment.Offset)
{
startFoldings.Add(segment);
}
else if (segment.GetEndLine(editor.Document)?.Offset == lineSegment.Offset)
{
endFoldings.Add(segment);
}
else
{
containingFoldings.Add(segment);
}
}
}
isFoldStart = startFoldings.Count > 0;
isContaining = containingFoldings.Count > 0;
isFoldEnd = endFoldings.Count > 0;
isStartSelected = this.lineHover != null && IsMouseHover(startFoldings);
isContainingSelected = this.lineHover != null && IsMouseHover(containingFoldings);
isEndSelected = this.lineHover != null && IsMouseHover(endFoldings);
}
if (marker == null)
{
if (editor.GetTextEditorData().HighlightCaretLine&& editor.Caret.Line == line)
{
editor.TextViewMargin.DrawCaretLineMarker(cr, x, y, Width, lineHeight);
}
else
{
var bgGC = foldBgGC;
if (editor.TextViewMargin.BackgroundRenderer != null)
{
if (isContainingSelected || isStartSelected || isEndSelected)
{
bgGC = foldBgGC;
}
else
{
bgGC = foldLineHighlightedGCBg;
}
}
cr.Rectangle(drawArea);
cr.SetSourceColor(bgGC);
cr.Fill();
}
}
if (editor.Options.EnableQuickDiff && state != TextDocument.LineState.Unchanged)
{
var prevState = lineSegment?.PreviousLine != null?editor.Document.GetLineState(lineSegment.PreviousLine) : TextDocument.LineState.Unchanged;
var nextState = lineSegment?.NextLine != null?editor.Document.GetLineState(lineSegment.NextLine) : TextDocument.LineState.Unchanged;
if (state == TextDocument.LineState.Changed)
{
cr.SetSourceColor(lineStateChangedGC);
}
else if (state == TextDocument.LineState.Dirty)
{
cr.SetSourceColor(lineStateDirtyGC);
}
if ((prevState == TextDocument.LineState.Unchanged && prevState != state ||
nextState == TextDocument.LineState.Unchanged && nextState != state))
{
FoldingScreenbackgroundRenderer.DrawRoundRectangle(
cr,
prevState == TextDocument.LineState.Unchanged,
nextState == TextDocument.LineState.Unchanged,
x + 1,
y,
lineHeight / 4,
marginWidth / 4,
lineHeight
);
}
else
{
cr.Rectangle(x + 1, y, marginWidth / 4, lineHeight);
}
cr.Fill();
}
if (editor.Options.ShowFoldMargin && line <= editor.Document.LineCount)
{
double foldSegmentYPos = y + System.Math.Floor(editor.LineHeight - foldSegmentSize) / 2;
double xPos = x + System.Math.Floor(marginWidth / 2) + 0.5;
if (isFoldStart)
{
bool isVisible = true;
bool moreLinedOpenFold = false;
foreach (FoldSegment foldSegment in startFoldings)
{
if (foldSegment.IsCollapsed)
{
isVisible = false;
}
else
{
moreLinedOpenFold = foldSegment.GetEndLine(editor.Document).Offset > foldSegment.GetStartLine(editor.Document).Offset;
}
}
bool isFoldEndFromUpperFold = false;
foreach (FoldSegment foldSegment in endFoldings)
{
if (foldSegment.GetEndLine(editor.Document).Offset > foldSegment.GetStartLine(editor.Document).Offset&& !foldSegment.IsCollapsed)
{
isFoldEndFromUpperFold = true;
}
}
DrawFoldSegment(cr, x, y, isVisible, isStartSelected);
if (isContaining || isFoldEndFromUpperFold)
{
cr.DrawLine(isContainingSelected ? foldLineHighlightedGC : foldLineGC, xPos, drawArea.Y, xPos, foldSegmentYPos - 2);
}
if (isContaining || moreLinedOpenFold)
{
cr.DrawLine(isEndSelected || (isStartSelected && isVisible) || isContainingSelected ? foldLineHighlightedGC : foldLineGC, xPos, foldSegmentYPos + foldSegmentSize + 2, xPos, drawArea.Y + drawArea.Height);
}
}
else
{
if (isFoldEnd)
{
double yMid = System.Math.Floor(drawArea.Y + drawArea.Height / 2) + 0.5;
cr.DrawLine(isEndSelected ? foldLineHighlightedGC : foldLineGC, xPos, yMid, x + marginWidth - 2, yMid);
cr.DrawLine(isContainingSelected || isEndSelected ? foldLineHighlightedGC : foldLineGC, xPos, drawArea.Y, xPos, yMid);
if (isContaining)
{
cr.DrawLine(isContainingSelected ? foldLineHighlightedGC : foldLineGC, xPos, yMid, xPos, drawArea.Y + drawArea.Height);
}
}
else if (isContaining)
{
cr.DrawLine(isContainingSelected ? foldLineHighlightedGC : foldLineGC, xPos, drawArea.Y, xPos, drawArea.Y + drawArea.Height);
}
}
}
}
public override void Draw(Context cr, Rectangle area, DocumentLine line, int lineNumber, double x, double y, double lineHeight)
{
MarginMarker marker = GetMarginMarker(line);
bool hasDrawn = false;
if (marker != null)
{
hasDrawn = marker.DrawBackground(Editor, cr, new MarginDrawMetrics(Margin, area, line, lineNumber, x, y, lineHeight));
}
if (!hasDrawn)
{
if (Editor.GetTextEditorData().HighlightCaretLine&& Editor.Caret.Line == lineNumber)
{
Editor.TextViewMargin.DrawCaretLineMarker(cr, x, y, Margin.Width, lineHeight);
}
else
{
cr.Rectangle(x, y, Margin.Width, lineHeight);
cr.SetSourceColor(backgroundColor);
cr.Fill();
}
}
var state = Editor.Document.GetLineState(line);
if (Editor.Options.EnableQuickDiff && state != TextDocument.LineState.Unchanged)
{
var prevState = line?.PreviousLine != null?Editor.Document.GetLineState(line.PreviousLine) : TextDocument.LineState.Unchanged;
var nextState = line?.NextLine != null?Editor.Document.GetLineState(line.NextLine) : TextDocument.LineState.Unchanged;
if (state == TextDocument.LineState.Changed)
{
cr.SetSourceColor(lineStateChangedGC);
}
else if (state == TextDocument.LineState.Dirty)
{
cr.SetSourceColor(lineStateDirtyGC);
}
if ((prevState == TextDocument.LineState.Unchanged && prevState != state ||
nextState == TextDocument.LineState.Unchanged && nextState != state))
{
FoldingScreenbackgroundRenderer.DrawRoundRectangle(
cr,
prevState == TextDocument.LineState.Unchanged,
nextState == TextDocument.LineState.Unchanged,
x + 1,
y,
lineHeight / 4,
Margin.Width / 4,
lineHeight
);
}
else
{
cr.Rectangle(x + 1, y, Margin.Width / 4, lineHeight);
}
cr.Fill();
}
}