Beispiel #1
0
        internal static void MixStyle(this StyleBase style, out FontStyle fontStyle, out GdiColor forecolor, out GdiColor backcolor)
        {
            forecolor = style.ForegroundOpacity > 0 ? ThemeHelper.DocumentTextColor.Alpha(style.ForegroundOpacity) : ThemeHelper.DocumentTextColor;
            backcolor = style.BackgroundOpacity > 0 ? ThemeHelper.DocumentPageColor.Alpha(style.BackgroundOpacity) : ThemeHelper.DocumentPageColor;
            fontStyle = style.GetFontStyle();
            if (style.ClassificationType == null)
            {
                return;
            }
            var p = DefaultClassificationFormatMap.GetRunProperties(style.ClassificationType);

            if (p == null)
            {
                return;
            }
            SolidColorBrush colorBrush;

            if (style.ForeColor.A == 0)
            {
                colorBrush = p.ForegroundBrushEmpty ? null : p.ForegroundBrush as SolidColorBrush;
                if (colorBrush != null)
                {
                    forecolor = (style.ForegroundOpacity > 0 ? colorBrush.Color.Alpha(style.ForegroundOpacity) : colorBrush.Color).ToGdiColor();
                }
            }
            else
            {
                forecolor = style.AlphaForeColor.ToGdiColor();
            }
            if (style.BackColor.A == 0)
            {
                colorBrush = p.BackgroundBrushEmpty ? null : p.BackgroundBrush as SolidColorBrush;
                if (colorBrush != null)
                {
                    backcolor = (style.BackgroundOpacity > 0 ? colorBrush.Color.Alpha(style.BackgroundOpacity) : colorBrush.Color).ToGdiColor();
                }
            }
            else
            {
                backcolor = style.AlphaBackColor.ToGdiColor();
            }
            if (p.BoldEmpty == false && p.Bold && style.Bold != false)
            {
                fontStyle |= FontStyle.Bold;
            }
            if (p.ItalicEmpty == false && p.Italic && style.Italic != false)
            {
                fontStyle |= FontStyle.Italic;
            }
            if (p.TextDecorationsEmpty == false)
            {
                foreach (var decoration in p.TextDecorations)
                {
                    if (decoration.Location == System.Windows.TextDecorationLocation.Underline && style.Underline != false)
                    {
                        fontStyle |= FontStyle.Underline;
                    }
                    else if (decoration.Location == System.Windows.TextDecorationLocation.Strikethrough && style.Strikethrough != false)
                    {
                        fontStyle |= FontStyle.Strikeout;
                    }
                }
            }
        }