private void DrawStraight(Graphics canvas, IImageToViewportTransformer transformer, Pen penEdges, Point start, Point end)
{
if (styleHelper.LineShape == LineShape.Squiggle)
{
canvas.DrawSquigglyLine(penEdges, start, end);
}
else if (styleHelper.LineShape == LineShape.Dash)
{
penEdges.DashStyle = DashStyle.Dash;
canvas.DrawLine(penEdges, start, end);
}
else
{
canvas.DrawLine(penEdges, start, end);
}
labelMeasure.SetAttach(GetMiddlePoint(), true);
if (styleHelper.LineEnding == LineEnding.StartArrow || styleHelper.LineEnding == LineEnding.DoubleArrow)
{
ArrowHelper.Draw(canvas, penEdges, start, end);
}
if (styleHelper.LineEnding == LineEnding.EndArrow || styleHelper.LineEnding == LineEnding.DoubleArrow)
{
ArrowHelper.Draw(canvas, penEdges, end, start);
}
}
private void DrawDistorted(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, Pen penEdges, Brush brush, Point start, Point end)
{
List <PointF> curve = distorter.DistortLine(points["a"], points["b"]);
List <Point> transformedCurve = transformer.Transform(curve);
if (styleHelper.LineShape == LineShape.Squiggle)
{
canvas.DrawSquigglyLine(penEdges, start, end);
}
else if (styleHelper.LineShape == LineShape.Dash)
{
DashStyle oldDashStyle = penEdges.DashStyle;
penEdges.DashStyle = DashStyle.Dash;
canvas.DrawCurve(penEdges, transformedCurve.ToArray());
penEdges.DashStyle = oldDashStyle;
}
else
{
canvas.DrawCurve(penEdges, transformedCurve.ToArray());
}
miniLabel.SetAttach(curve[curve.Count / 2], true);
if (styleHelper.LineEnding == LineEnding.StartArrow || styleHelper.LineEnding == LineEnding.DoubleArrow)
{
ArrowHelper.Draw(canvas, penEdges, start, end);
}
if (styleHelper.LineEnding == LineEnding.EndArrow || styleHelper.LineEnding == LineEnding.DoubleArrow)
{
ArrowHelper.Draw(canvas, penEdges, end, start);
}
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
double opacity = infosFading.GetOpacityFactor(currentTimestamp);
if (opacity <= 0)
{
return;
}
//int backgroundOpacity = editing ? 255 : 192;
int backgroundOpacity = 255;
using (SolidBrush brushBack = styleHelper.GetBackgroundBrush((int)(opacity * backgroundOpacity)))
using (SolidBrush brushText = styleHelper.GetForegroundBrush((int)(opacity * 255)))
using (Pen pen = styleHelper.GetPen(backgroundOpacity))
using (Font fontText = styleHelper.GetFont((float)transformer.Scale))
{
SizeF textSize = canvas.MeasureString(text, fontText);
Point bgLocation = transformer.Transform(background.Rectangle.Location);
Size bgSize = new Size((int)textSize.Width, (int)textSize.Height);
SizeF untransformed = transformer.Untransform(textSize);
background.Rectangle = new RectangleF(background.Rectangle.Location, untransformed);
Rectangle rect = new Rectangle(bgLocation, bgSize);
int roundingRadius = fontText.Height / 4;
if (showArrow)
{
pen.Color = brushBack.Color;
pen.Width = fontText.Height / 4;
Point arrowStartInScreen = rect.Center();
Point arrowEndInScreen = transformer.Transform(arrowEnd);
canvas.DrawLine(pen, arrowStartInScreen, arrowEndInScreen);
ArrowHelper.Draw(canvas, pen, arrowEndInScreen, arrowStartInScreen);
}
RoundedRectangle.Draw(canvas, rect, brushBack, roundingRadius, false, false, null);
if (!editing)
{
canvas.DrawString(text, fontText, brushText, rect.Location);
}
}
}
private void DrawSegments(Pen penEdge, Color basePenEdgeColor, int alpha, Graphics canvas, IImageToViewportTransformer transformer, List <Point> points)
{
foreach (GenericPostureSegment segment in genericPosture.Segments)
{
if (!IsActive(segment.OptionGroup))
{
continue;
}
penEdge.Width = segment.Width;
penEdge.DashStyle = Convert(segment.Style);
penEdge.Color = segment.Color == Color.Transparent ? basePenEdgeColor : Color.FromArgb(alpha, segment.Color);
if (segment.ArrowBegin)
{
penEdge.StartCap = LineCap.ArrowAnchor;
}
if (segment.ArrowEnd)
{
penEdge.EndCap = LineCap.ArrowAnchor;
}
PointF start = segment.Start >= 0 ? points[segment.Start] : GetComputedPoint(segment.Start, transformer);
PointF end = segment.End >= 0 ? points[segment.End] : GetComputedPoint(segment.End, transformer);
canvas.DrawLine(penEdge, start, end);
if (segment.ArrowBegin)
{
ArrowHelper.Draw(canvas, penEdge, start.ToPoint(), end.ToPoint());
}
if (segment.ArrowEnd)
{
ArrowHelper.Draw(canvas, penEdge, end.ToPoint(), start.ToPoint());
}
}
penEdge.Color = basePenEdgeColor;
penEdge.StartCap = LineCap.NoAnchor;
penEdge.EndCap = LineCap.NoAnchor;
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
double opacityFactor = infosFading.GetOpacityFactor(currentTimestamp);
if (tracking)
{
opacityFactor = 1.0;
}
if (opacityFactor <= 0)
{
return;
}
if (points.Count < 2)
{
return;
}
Point[] pointList = transformer.Transform(points.Values).ToArray();
using (Pen penEdges = styleHelper.GetPen((int)(opacityFactor * 255), transformer.Scale))
{
PointF danglingStart;
PointF danglingEnd;
if (initializing)
{
danglingStart = pointList[pointList.Length - 2];
danglingEnd = pointList[pointList.Length - 1];
penEdges.DashStyle = DashStyle.Dot;
canvas.DrawLine(penEdges, danglingStart, danglingEnd);
if (pointList.Length > 2)
{
Point[] path = pointList.TakeWhile((p, i) => i <= pointList.Length - 2).ToArray();
DrawPath(canvas, penEdges, path);
}
}
else
{
Point[] path = pointList.ToArray();
DrawPath(canvas, penEdges, path);
}
if (styleHelper.LineEnding == LineEnding.StartArrow || styleHelper.LineEnding == LineEnding.DoubleArrow)
{
ArrowHelper.Draw(canvas, penEdges, pointList[0], pointList[1]);
}
if (styleHelper.LineEnding == LineEnding.EndArrow || styleHelper.LineEnding == LineEnding.DoubleArrow)
{
ArrowHelper.Draw(canvas, penEdges, pointList[pointList.Length - 1], pointList[pointList.Length - 2]);
}
// Handlers
if (selected)
{
penEdges.Width = 2;
foreach (PointF p in pointList)
{
canvas.FillEllipse(penEdges.Brush, p.Box(3));
}
}
}
}