public void PaintSelf(
Graphics graphics,
Point parentLocation,
HighlightOptions highlightOptions,
RectangularSelection selection,
SelectionOptions selectionOptions)
{
var contentArea = getArea(parentLocation, Location, Padding);
var completeArea = getArea(parentLocation, Location, new Padding(0));
if (Image != null)
{
paintImage(graphics, contentArea);
}
if (!string.IsNullOrEmpty(DataText) && contentArea.Width > 0 && contentArea.Height > 0)
{
bool isTextSelecting = selection.Selecting && completeArea.Contains(selection.Start);
paintText(
graphics,
highlightOptions,
selection,
selectionOptions,
contentArea,
isTextSelecting);
}
}
private void paintText(
Graphics graphics,
HighlightOptions highlightOptions,
RectangularSelection selection,
SelectionOptions selectionOptions,
Rectangle contentArea,
bool isTextSelecting)
{
_paintInProgress = true;
if (selection.Selecting)
{
TextSelection.Clear();
}
var context = new RichTextRenderContext
{
Text = DataText,
TextSelection = TextSelection.Clone(),
HighlightRanges = HighlightRanges,
Graphics = graphics,
Rect = contentArea,
HorizAlignment = HorizontalAlignment,
Font = Font,
ForeColor = ForeColor,
HighlightContextColor = highlightOptions.HighlightContextColor,
HighlightColor = highlightOptions.HighlightColor,
HighlightBorderColor = highlightOptions.HighlightBorderColor,
HighlightBorderWidth = 1f
};
if (isTextSelecting)
{
context.Selecting = true;
context.SelectionStart = selection.Start;
context.SelectionEnd = selection.End;
}
context.SelectionBackColor = selectionOptions.BackColor;
context.SelectionForeColor = selectionOptions.ForeColor;
context.SelectionAlpha = selectionOptions.Alpha;
RichTextRenderer.Render(context, _iconRecognizer);
if (selection.Selecting)
{
TextSelection.SetSelection(context.TextSelection);
}
_paintInProgress = false;
}