public void DrawText(string text, Rect frame, Font font, TextAlignment alignment = TextAlignment.Left, Pen pen = null, Brush brush = null)
{
if (brush == null)
{
return;
}
var sdfont = new System.Drawing.Font(font.Family, (float)font.Size, FontStyle.Regular, GraphicsUnit.Pixel);
var sz = graphics.MeasureString(text, sdfont);
var point = frame.Position;
var fr = new Rect(point, new Size(sz.Width, sz.Height));
graphics.DrawString(text, sdfont, Conversions.GetBrush(brush, fr), Conversions.GetPointF(point - new Point(0, sdfont.Height)));
}
public void DrawText(string text, Rect frame, Font font, TextAlignment alignment = TextAlignment.Left, Pen pen = null, Brush brush = null)
{
var brushToUse = brush ?? Brushes.Black;
var netFont = new System.Drawing.Font(font.Family, (float)font.Size, FontStyle.Regular, GraphicsUnit.Pixel);
var sz = graphics.MeasureString(text, netFont);
var asc = netFont.FontFamily.GetCellAscent(netFont.Style);
var desc = netFont.FontFamily.GetCellDescent(netFont.Style);
var ascale = sz.Height / (asc + desc);
var point = frame.Position;
var fr = new Rect(point, new Size(sz.Width, sz.Height));
graphics.DrawString(text, netFont, Conversions.GetBrush(brushToUse, fr), Conversions.GetPointF(point - new Point(0, sz.Height - desc * ascale)));
}
public void DrawPath(IEnumerable <PathOp> ops, Pen pen = null, Brush brush = null)
{
using (var path = new GraphicsPath()) {
var bb = new BoundingBoxBuilder();
var position = Point.Zero;
foreach (var op in ops)
{
var mt = op as MoveTo;
if (mt != null)
{
var p = mt.Point;
position = p;
bb.Add(p);
continue;
}
var lt = op as LineTo;
if (lt != null)
{
var p = lt.Point;
path.AddLine(Conversions.GetPointF(position), Conversions.GetPointF(p));
position = p;
bb.Add(p);
continue;
}
var at = op as ArcTo;
if (at != null)
{
var p = at.Point;
path.AddLine(Conversions.GetPointF(position), Conversions.GetPointF(p));
position = p;
bb.Add(p);
continue;
}
var ct = op as CurveTo;
if (ct != null)
{
var p = ct.Point;
var c1 = ct.Control1;
var c2 = ct.Control2;
path.AddBezier(Conversions.GetPointF(position), Conversions.GetPointF(c1),
Conversions.GetPointF(c2), Conversions.GetPointF(p));
position = p;
bb.Add(p);
bb.Add(c1);
bb.Add(c2);
continue;
}
var cp = op as ClosePath;
if (cp != null)
{
path.CloseFigure();
continue;
}
throw new NotSupportedException("Path Op " + op);
}
var frame = bb.BoundingBox;
if (brush != null)
{
graphics.FillPath(brush.GetBrush(frame), path);
}
if (pen != null)
{
graphics.DrawPath(pen.GetPen(), path);
}
}
}
public void DrawPath(IEnumerable <PathOp> ops, Pen pen = null, Brush brush = null)
{
using (var path = new GraphicsPath()) {
var bb = new BoundingBoxBuilder();
var position = Point.Zero;
foreach (var op in ops)
{
var mt = op as MoveTo;
if (mt != null)
{
var p = mt.Point;
position = p;
bb.Add(p);
continue;
}
var lt = op as LineTo;
if (lt != null)
{
var p = lt.Point;
path.AddLine(Conversions.GetPointF(position), Conversions.GetPointF(p));
position = p;
bb.Add(p);
continue;
}
var at = op as ArcTo;
if (at != null)
{
var p = at.Point;
Point c1, c2;
at.GetCircles(position, out c1, out c2);
var circleCenter = (at.LargeArc ^ at.SweepClockwise) ? c1 : c2;
var rect = new Rect(circleCenter - at.Radius, at.Radius * 2);
var startAngle = Conversions.RadToDeg((float)Math.Atan2(position.Y - circleCenter.Y, position.X - circleCenter.X));
var endAngle = Conversions.RadToDeg((float)Math.Atan2(p.Y - circleCenter.Y, p.X - circleCenter.X));
var sweepAngle = endAngle - startAngle;
if (at.SweepClockwise && sweepAngle < 0)
{
// If we want to go CW, sweepAngle needs to be positive
sweepAngle += 360.0f;
}
else if (!at.SweepClockwise && sweepAngle > 0)
{
// If we want to go CCW, sweepAngle needs to be negative
sweepAngle -= 360.0f;
}
path.AddArc(Conversions.GetRectangleF(rect), startAngle, sweepAngle);
position = p;
bb.Add(p);
continue;
}
var ct = op as CurveTo;
if (ct != null)
{
var p = ct.Point;
var c1 = ct.Control1;
var c2 = ct.Control2;
path.AddBezier(Conversions.GetPointF(position), Conversions.GetPointF(c1),
Conversions.GetPointF(c2), Conversions.GetPointF(p));
position = p;
bb.Add(p);
bb.Add(c1);
bb.Add(c2);
continue;
}
var cp = op as ClosePath;
if (cp != null)
{
path.CloseFigure();
continue;
}
throw new NotSupportedException("Path Op " + op);
}
var frame = bb.BoundingBox;
if (brush != null)
{
graphics.FillPath(brush.GetBrush(frame), path);
}
if (pen != null)
{
graphics.DrawPath(pen.GetPen(), path);
}
}
}
