public static XStringFormat GetFormat(StringFormatEx stringFormat)
{
var format = new XStringFormat();
format.Alignment = (XStringAlignment)Enum.Parse(typeof(XStringAlignment), stringFormat.Alignment.ToString());
format.LineAlignment = (XLineAlignment)Enum.Parse(typeof(XLineAlignment), stringFormat.LineAlignment.ToString());
return(format);
}
private static string DrawText(string txt, RectangleF bounds, StringFormatEx format = null)
{
var canvas = new TxtDrawingCanvas(new Size(10, 10), "\n");
canvas.DrawString(txt, null, null, bounds, format ?? StringFormatEx.GetGenericDefault);
using var writer = new StringWriter();
canvas.Write(writer);
return(writer.ToString());
}
public static IEnumerable <Line> SplitLines(string txt, StringFormatEx format, int width)
{
switch (format.WrapMode)
{
case WrapMode.NoWrap:
return(CharWrap(txt, int.MaxValue));
case WrapMode.CharWrap:
return(CharWrap(txt, width));
case WrapMode.WordWrap:
return(WordWrap(txt, width));
default:
throw new ArgumentOutOfRangeException("format.WrapMode");
}
}
private static XParagraphAlignment GetAlignment(StringFormatEx format)
{
if (format.IsJustified)
{
return(XParagraphAlignment.Justify);
}
switch (format.LineAlignment)
{
case StringAlignmentEx.Near:
return(XParagraphAlignment.Left);
case StringAlignmentEx.Center:
return(XParagraphAlignment.Center);
case StringAlignmentEx.Far:
return(XParagraphAlignment.Right);
}
return(XParagraphAlignment.Default);
}
public void DrawString(string value, FontInfo font, BrushEx brush, RectangleF layoutRectangle,
StringFormatEx format)
{
var pts = new[] { layoutRectangle.Location, new PointF(layoutRectangle.Right, layoutRectangle.Bottom) };
Transform.TransformPoints(pts);
var w = pts[1].X - pts[0].X;
var h = pts[1].Y - pts[0].Y;
var textItem = new TextItem()
{
Value = value,
Bounds = new Rectangle(
(int)(pts[0].X / _settingsFontSizeTwips.Width),
(int)(pts[0].Y / _settingsFontSizeTwips.Height),
(int)(w / _settingsFontSizeTwips.Width),
(int)(h / _settingsFontSizeTwips.Height)),
Format = format
};
_items.Add(textItem);
}
void IDrawingCanvas.DrawString(string value, FontInfo font, BrushEx brush, RectangleF rect, StringFormatEx format)
{
XGraphicsContainer clipState = _graphics.BeginContainer();
var xRect = PdfConverter.Convert(rect);
var xFont = _fonts.GetPdfFont(font);
_graphics.IntersectClip(xRect);
var resultRect = _graphics.MeasureString(value, xFont, GetFormat(format));
if ((format.WrapMode == WrapMode.NoWrap && !value.Contains('\n')) ||
(resultRect.Width * PdfConverter.TwipsPerPoint <= rect.Width))
{
_graphics.DrawString(value, xFont, (BrushBase)brush, xRect, GetFormat(format));
return;
}
if (format.WrapMode == WrapMode.NoWrap && value.Contains('\n'))
{
var lines = value.Split('\n');
var y = xRect.Y;
for (var i = 0; i < lines.Length; i++)
{
var line = lines[i].Trim('\r');
_graphics.DrawString(line, xFont, (BrushBase)brush, new XRect(xRect.X, y, xRect.Width, resultRect.Height), GetFormat(format));
y += resultRect.Height;
}
return;
}
// http://developer.th-soft.com/developer/2015/07/17/pdfsharp-improving-the-xtextformatter-class-measuring-the-height-of-the-text/
// http://developer.th-soft.com/developer/2015/09/21/xtextformatter-revisited-xtextformatterex2-for-pdfsharp-1-50-beta-2/
var tf = new XTextFormatter(_graphics)
{
Alignment = GetAlignment(format)
};
tf.DrawString(value, xFont, (BrushBase)brush, xRect);
_graphics.EndContainer(clipState);
}
public string Format(string template, object obj)
{
return(StringFormatEx.Format(obj, template));
}
