public void DrawImage(IImage image, Rect frame, double alpha = 1.0) { var ii = image as ImageImage; if (ii != null) { if (alpha < 0.999) { var i = new ImageAttributes(); var mat = new ColorMatrix(new float[][] { new[] { 1.0f, 0.0f, 0.0f, 0.0f, 0.0f }, new[] { 0.0f, 1.0f, 0.0f, 0.0f, 0.0f }, new[] { 0.0f, 0.0f, 1.0f, 0.0f, 0.0f }, new[] { 0.0f, 0.0f, 0.0f, (float)alpha, 0.0f }, new[] { 0.0f, 0.0f, 0.0f, 0.0f, 1.0f } }); i.SetColorMatrix(mat); var size = ii.Image.Size; graphics.DrawImage(ii.Image, Conversions.GetRectangle(frame), 0, 0, size.Width, size.Height, GraphicsUnit.Pixel, i); } else { graphics.DrawImage(ii.Image, Conversions.GetRectangleF(frame)); } } }
public void DrawRectangle(Rect frame, Size corner, Pen pen = null, Brush brush = null) { if (corner.Width > 0 || corner.Height > 0) { using (var path = new GraphicsPath()) { var xdia = corner.Width * 2; var ydia = corner.Height * 2; if (xdia > frame.Width) { xdia = frame.Width; } if (ydia > frame.Height) { ydia = frame.Height; } // define a corner var Corner = Conversions.GetRectangleF(frame); path.AddArc(Corner, 180, 90); // top right Corner.X += (float)(frame.Width - xdia); path.AddArc(Corner, 270, 90); // bottom right Corner.Y += (float)(frame.Height - ydia); path.AddArc(Corner, 0, 90); // bottom left Corner.X -= (float)(frame.Width - xdia); path.AddArc(Corner, 90, 90); // end path path.CloseFigure(); if (brush != null) { graphics.FillPath(brush.GetBrush(frame), path); } if (pen != null) { graphics.DrawPath(pen.GetPen(), path); } } } else { if (brush != null) { graphics.FillRectangle(brush.GetBrush(frame), Conversions.GetRectangleF(frame)); } if (pen != null) { var r = Conversions.GetRectangleF(frame); graphics.DrawRectangle(pen.GetPen(), r.X, r.Y, r.Width, r.Height); } } }
public void DrawEllipse(Rect frame, Pen pen = null, Brush brush = null) { if (brush != null) { graphics.FillEllipse(brush.GetBrush(frame), Conversions.GetRectangleF(frame)); } if (pen != null) { graphics.DrawEllipse(pen.GetPen(), Conversions.GetRectangleF(frame)); } }
public void DrawRectangle(Rect frame, Pen pen = null, Brush brush = null) { if (brush != null) { graphics.FillRectangle(brush.GetBrush(frame), Conversions.GetRectangleF(frame)); } if (pen != null) { var r = Conversions.GetRectangleF(frame); graphics.DrawRectangle(pen.GetPen(), r.X, r.Y, r.Width, r.Height); } }
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); } } }
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) { var r = Conversions.GetRectangleF(frame); graphics.DrawPath(pen.GetPen(), path); } } }