/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, XPoint origin, XStringFormat format)
{
this.gdipPath.AddString(s, family.family, (int)style, (float)emSize, origin.ToPointF(), format.RealizeGdiStringFormat());
}
/// <summary>
/// Adds a cubic Bézier curve to the current figure.
/// </summary>
public void AddBezier(XPoint pt1, XPoint pt2, XPoint pt3, XPoint pt4)
{
this.items.Add(new XGraphicsPathItem(XGraphicsPathItemType.Beziers,
new XPoint(pt1.X, pt1.Y), new XPoint(pt2.X, pt2.Y), new XPoint(pt3.X, pt3.Y), new XPoint(pt4.X, pt4.Y)));
this.dirty = true;
this.gdipPath.AddBezier(pt1.ToPointF(), pt2.ToPointF(), pt3.ToPointF(), pt4.ToPointF());
}
/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, XPoint origin,
XStringFormat format)
{
try
{
#if CORE
DiagnosticsHelper.HandleNotImplemented("XGraphicsPath.AddString");
#endif
#if GDI
if (family.GdiFamily == null)
throw new NotFiniteNumberException(PSSR.NotImplementedForFontsRetrievedWithFontResolver(family.Name));
PointF p = origin.ToPointF();
p.Y += SimulateBaselineOffset(family, style, emSize, format);
try
{
Lock.EnterGdiPlus();
_gdipPath.AddString(s, family.GdiFamily, (int)style, (float)emSize, p, format.RealizeGdiStringFormat());
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
if (family.WpfFamily == null)
throw new NotFiniteNumberException(PSSR.NotImplementedForFontsRetrievedWithFontResolver(family.Name));
#if !SILVERLIGHT
XFont font = new XFont(family.Name, emSize, style);
double x = origin.X;
double y = origin.Y;
double lineSpace = font.GetHeight();
double cyAscent = lineSpace * font.CellAscent / font.CellSpace;
double cyDescent = lineSpace * font.CellDescent / font.CellSpace;
Typeface typeface = FontHelper.CreateTypeface(family.WpfFamily, style);
FormattedText formattedText = FontHelper.CreateFormattedText(s, typeface, emSize, WpfBrushes.Black);
switch (format.Alignment)
{
case XStringAlignment.Near:
// nothing to do, this is the default
//formattedText.TextAlignment = TextAlignment.Left;
break;
case XStringAlignment.Center:
formattedText.TextAlignment = TextAlignment.Center;
break;
case XStringAlignment.Far:
formattedText.TextAlignment = TextAlignment.Right;
break;
}
switch (format.LineAlignment)
{
case XLineAlignment.Near:
//y += cyAscent;
break;
case XLineAlignment.Center:
// TODO use CapHeight. PDFlib also uses 3/4 of ascent
y += -lineSpace / 2; //-formattedText.Baseline + (cyAscent * 2 / 4);
break;
case XLineAlignment.Far:
y += -formattedText.Baseline - cyDescent;
break;
case XLineAlignment.BaseLine:
y -= formattedText.Baseline;
break;
}
Geometry geo = formattedText.BuildGeometry(new XPoint(x, y));
_pathGeometry.AddGeometry(geo);
#else
// AG-HACK
throw new InvalidOperationException("Silverlight cannot create geometry of glyphs.");
// TODO: Get the outline directly from the font.
#endif
#endif
}
catch
{
throw;
}
}
/// <summary>
/// Adds a line segment to current figure.
/// </summary>
public void AddLine(XPoint pt1, XPoint pt2)
{
this.items.Add(new XGraphicsPathItem(XGraphicsPathItemType.Lines, pt1, pt2));
this.dirty = true;
this.gdipPath.AddLine(pt1.ToPointF(), pt2.ToPointF());
}
/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, XPoint origin, XStringFormat format)
{
try
{
#if GDI
// TODOWPF
this.gdipPath.AddString(s, family.gdiFamily, (int)style, (float)emSize, origin.ToPointF(), format.RealizeGdiStringFormat());
#endif
#if WPF
Typeface typeface = FontHelper.CreateTypeface(family, style);
FormattedText ft = new FormattedText(s, CultureInfo.CurrentCulture, FlowDirection.LeftToRight, typeface, emSize,
System.Windows.Media.Brushes.Black);
Geometry geo = ft.BuildGeometry(origin);
this.pathGeometry.AddGeometry(geo);
#endif
}
catch { }
}
