private static Polygon RenderHighlight(BookmarkModel bookmarkModel, Panel canvas, PageRenderData context)
{
int tokenID = bookmarkModel.TokenID;
TextRenderData firstHighlightedText = context.Texts.FirstOrDefault(t => t.TokenID == tokenID) ??
(context.Texts).FirstOrDefault();
if (firstHighlightedText == null)
{
return(null);
}
int endTokenID = bookmarkModel.EndTokenID;
TextRenderData lastHighlightedText = context.Texts.LastOrDefault(t => t.TokenID == endTokenID) ??
(context.Texts).LastOrDefault();
if (lastHighlightedText == null)
{
return(null);
}
Rect firtstRect = firstHighlightedText.Rect;
Rect lastRect = lastHighlightedText.Rect;
var pointCollection = SelectionHelper.GetSelectionPolygon(
firtstRect,
lastRect,
canvas.ActualWidth,
context.OffsetX,
Convert.ToDouble(AppSettings.Default.FontSettings.FontInterval));
var polygon = new Polygon
{
Width = canvas.ActualWidth,
Height = canvas.ActualHeight,
Fill = new SolidColorBrush(ColorHelper.ToColor(bookmarkModel.Color))
{
Opacity = 0.3
},
Points = pointCollection,
Visibility = Visibility.Visible
};
return(polygon);
}
private static PointCollection GetSelectionPolygon(Rect a, Rect b, double width)
{
return(SelectionHelper.GetSelectionPolygon(a, b, width, OffsetX,
Convert.ToDouble(AppSettings.Default.FontSettings.FontInterval)));
}