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); } } }