int DrawLinePortion(Context cr, ChunkStyle style, TextLayout layout, DocumentLine line, int visualOffset, int logicalLength)
{
int logicalColumn = line.GetLogicalColumn(editor, visualOffset);
int logicalEndColumn = logicalColumn + logicalLength;
int visualEndOffset = line.GetVisualColumn(editor, logicalEndColumn);
int visualLength = visualEndOffset - visualOffset;
int indexOffset = visualOffset - 1;
layout.SetFontStyle(style.FontStyle, indexOffset, visualLength);
layout.SetFontWeight(style.FontWeight, indexOffset, visualLength);
if (style.Underline)
layout.SetUnderline(indexOffset, visualLength);
layout.SetForeground(style.Foreground, indexOffset, visualLength);
return visualEndOffset;
}
protected void InsertCharacter(uint unicodeKey)
{
if (!textEditorData.CanEdit(Data.Caret.Line))
{
return;
}
HideMouseCursor();
using (var undo = Document.OpenUndoGroup()) {
if (textEditorData.IsSomethingSelected && textEditorData.Options.EnableSelectionWrappingKeys && IsSpecialKeyForSelection(unicodeKey))
{
textEditorData.SelectionSurroundingProvider.HandleSpecialSelectionKey(textEditorData, unicodeKey);
return;
}
textEditorData.DeleteSelectedText(
textEditorData.IsSomethingSelected ? textEditorData.MainSelection.SelectionMode != SelectionMode.Block : true);
// Needs to be called after delete text, delete text handles virtual caret postitions itself,
// but afterwards the virtual position may need to be restored.
textEditorData.EnsureCaretIsNotVirtual();
char ch = (char)unicodeKey;
if (!char.IsControl(ch) && textEditorData.CanEdit(Caret.Line))
{
DocumentLine line = Document.GetLine(Caret.Line);
if (Caret.IsInInsertMode || Caret.Column >= line.Length + 1)
{
string text = ch.ToString();
if (textEditorData.IsSomethingSelected && textEditorData.MainSelection.SelectionMode == SelectionMode.Block)
{
var visualInsertLocation = textEditorData.LogicalToVisualLocation(Caret.Location);
var selection = textEditorData.MainSelection;
Caret.PreserveSelection = true;
for (int lineNumber = selection.MinLine; lineNumber <= selection.MaxLine; lineNumber++)
{
DocumentLine lineSegment = textEditorData.GetLine(lineNumber);
int insertOffset = lineSegment.GetLogicalColumn(textEditorData, visualInsertLocation.Column) - 1;
string textToInsert;
if (lineSegment.Length < insertOffset)
{
int visualLastColumn = lineSegment.GetVisualColumn(textEditorData, lineSegment.Length + 1);
int charsToInsert = visualInsertLocation.Column - visualLastColumn;
int spaceCount = charsToInsert % editor.Options.TabSize;
textToInsert = new string ('\t', (charsToInsert - spaceCount) / editor.Options.TabSize) +
new string (' ', spaceCount) + text;
insertOffset = lineSegment.Length;
}
else
{
textToInsert = text;
}
textEditorData.Insert(lineSegment.Offset + insertOffset, textToInsert);
}
var visualColumn = textEditorData.GetLine(Caret.Location.Line).GetVisualColumn(textEditorData, Caret.Column);
textEditorData.MainSelection = new Selection(
new DocumentLocation(selection.Anchor.Line, textEditorData.GetLine(selection.Anchor.Line).GetLogicalColumn(textEditorData, visualColumn)),
new DocumentLocation(selection.Lead.Line, textEditorData.GetLine(selection.Lead.Line).GetLogicalColumn(textEditorData, visualColumn)),
SelectionMode.Block
);
Document.CommitMultipleLineUpdate(textEditorData.MainSelection.MinLine, textEditorData.MainSelection.MaxLine);
}
else
{
textEditorData.Insert(Caret.Offset, text);
}
}
else
{
textEditorData.Replace(Caret.Offset, 1, ch.ToString());
}
// That causes unnecessary redraws:
// bool autoScroll = Caret.AutoScrollToCaret;
// Caret.Column++;
if (Caret.PreserveSelection)
{
Caret.PreserveSelection = false;
}
// Caret.AutoScrollToCaret = autoScroll;
// if (autoScroll)
// Editor.ScrollToCaret ();
// Document.RequestUpdate (new LineUpdate (Caret.Line));
// Document.CommitDocumentUpdate ();
}
}
Document.OptimizeTypedUndo();
}
public double ColumnToX(DocumentLine line, int column)
{
int visualColumn = line.GetVisualColumn(editor, column);
return (visualColumn - 1) * CharWidth;
}
protected internal override void DrawBackground(Context cr, Xwt.Rectangle area, DocumentLine line, int lineNumber, double x, double y, double height)
{
if (line == null) return;
if (lineNumber == editor.Caret.Line)
{
cr.SetColor(editor.Options.ColorScheme.LineMarker.Color);
cr.Rectangle(x, y, editor.GetWidth(), height);
cr.Fill();
}
var style = SyntaxModeService.DefaultColorStyle;
var selectionStyle = editor.HasFocus ? style.SelectedText : style.SelectedInactiveText;
var selectionSegment = GetSegmentForLine(editor.Selection, line);
if (selectionSegment != null)
{
int logicalStartColumn = selectionSegment.Value.Offset - line.Offset;
int visualStartColumn = line.GetVisualColumn(editor, logicalStartColumn);
if (selectionSegment.Value.Offset == line.Offset)
visualStartColumn = 0;
int logicalEndColumn = selectionSegment.Value.EndOffset - line.Offset;
int visualEndColumn = line.GetVisualColumn(editor, logicalEndColumn);
if (editor.Selection.EndOffset != selectionSegment.Value.EndOffset && visualEndColumn > 0)
visualEndColumn--;
if (editor.Selection.Contains(line.EndOffset))
++visualEndColumn;
cr.SetColor(selectionStyle.Background);
double startX = x + visualStartColumn * CharWidth;
double endX = x + visualEndColumn * CharWidth;
cr.Rectangle(startX, y, endX - startX, LineHeight);
cr.Fill();
}
}
