private void RenderExtraDrawings(Metadata metadata, long timestamp, Graphics canvas, ImageToViewportTransformer transformer)
{
DistortionHelper distorter = null;
metadata.DrawingCoordinateSystem.Draw(canvas, distorter, transformer, false, timestamp);
metadata.DrawingTestGrid.Draw(canvas, distorter, transformer, false, timestamp);
if (renderTimedDrawings)
{
metadata.SpotlightManager.Draw(canvas, distorter, transformer, false, timestamp);
metadata.AutoNumberManager.Draw(canvas, distorter, transformer, false, timestamp);
}
if (renderTimedDrawings)
{
foreach (AbstractDrawing ad in metadata.ChronoManager.Drawings)
{
ad.Draw(canvas, distorter, transformer, false, timestamp);
}
}
if (renderTimedDrawings)
{
foreach (AbstractDrawing ad in metadata.TrackManager.Drawings)
{
ad.Draw(canvas, distorter, transformer, false, timestamp);
}
}
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
double opacityFactor = infosFading.GetOpacityFactor(currentTimestamp);
if (opacityFactor <= 0 || editing)
{
return;
}
using (SolidBrush brushBack = styleHelper.GetBackgroundBrush((int)(opacityFactor * 128)))
using (SolidBrush brushText = styleHelper.GetForegroundBrush((int)(opacityFactor * 255)))
using (Font fontText = styleHelper.GetFont((float)transformer.Scale))
{
// Note: recompute background size in case the font floored.
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);
RoundedRectangle.Draw(canvas, rect, brushBack, fontText.Height / 4, false, false, null);
canvas.DrawString(text, fontText, brushText, rect.Location);
}
}
public override int HitTest(PointF point, long currentTimestamp, DistortionHelper distorter, IImageToViewportTransformer transformer, bool zooming)
{
int result = -1;
double opacityFactor = infosFading.GetOpacityTrackable(trackingTimestamps, currentTimestamp);
if (opacityFactor > 0)
{
if (trackExtraData != TrackExtraData.None && miniLabel.HitTest(point, transformer))
{
result = 3;
}
else if (HitTester.HitTest(points["a"], point, transformer))
{
result = 1;
}
else if (HitTester.HitTest(points["b"], point, transformer))
{
result = 2;
}
else if (IsPointInObject(point, distorter, transformer))
{
result = 0;
}
}
return(result);
}
public override int HitTest(PointF point, long currentTimestamp, DistortionHelper distorter, IImageToViewportTransformer transformer, bool zooming)
{
int result = -1;
double opacity = infosFading.GetOpacityFactor(currentTimestamp);
if (tracking || opacity > 0)
{
if (ShowMeasurableInfo && labelMeasure.HitTest(point, transformer))
{
result = 3;
}
else if (HitTester.HitTest(points["a"], point, transformer))
{
result = 1;
}
else if (HitTester.HitTest(points["b"], point, transformer))
{
result = 2;
}
else if (IsPointInObject(point, distorter, transformer))
{
result = 0;
}
}
return(result);
}
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;
}
int iAlpha = (int)(opacityFactor * 255);
Point c = transformer.Transform(points["0"]);
using (Pen p = styleHelper.GetPen(iAlpha))
using (SolidBrush b = styleHelper.GetBrush((int)(opacityFactor * defaultBackgroundAlpha)))
{
canvas.DrawLine(p, c.X - defaultRadius, c.Y, c.X + defaultRadius, c.Y);
canvas.DrawLine(p, c.X, c.Y - defaultRadius, c.X, c.Y + defaultRadius);
canvas.FillEllipse(b, c.Box(defaultRadius + 1));
}
if (ShowMeasurableInfo)
{
labelCoordinates.SetText(CalibrationHelper.GetPointText(new PointF(points["0"].X, points["0"].Y), true, true, infosFading.ReferenceTimestamp));
labelCoordinates.Draw(canvas, transformer, opacityFactor);
}
}
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;
}
int iAlpha = (int)(opacityFactor * 255);
Point c = transformer.Transform(points["0"]);
using (Pen p = styleHelper.GetPen(iAlpha))
using (SolidBrush b = styleHelper.GetBrush((int)(opacityFactor * defaultBackgroundAlpha)))
{
canvas.DrawLine(p, c.X - defaultRadius, c.Y, c.X + defaultRadius, c.Y);
canvas.DrawLine(p, c.X, c.Y - defaultRadius, c.X, c.Y + defaultRadius);
canvas.FillEllipse(b, c.Box(defaultRadius + 1));
}
if (trackExtraData != TrackExtraData.None)
{
string text = GetExtraDataText(infosFading.ReferenceTimestamp);
miniLabel.SetText(text);
miniLabel.Draw(canvas, transformer, opacityFactor);
}
}
public override int HitTest(PointF point, long currentTimestamp, DistortionHelper distorter, IImageToViewportTransformer transformer, bool zooming)
{
// Convention: miss = -1, object = 0, handle = n.
int result = -1;
long maxHitTimeStamps = invisibleTimestamp;
if (maxHitTimeStamps != long.MaxValue)
{
maxHitTimeStamps += (allowedFramesOver * parentMetadata.AverageTimeStampsPerFrame);
}
if (currentTimestamp >= visibleTimestamp && currentTimestamp <= maxHitTimeStamps)
{
using (Font fontText = styleHelper.GetFont(1.0f))
{
int roundingRadius = fontText.Height / 4;
result = mainBackground.HitTest(point, true, (int)(roundingRadius * 1.8f), transformer);
}
if (result < 0)
{
result = lblBackground.HitTest(point, false, 0, transformer);
}
}
return(result);
}
public override int HitTest(PointF point, long currentTimestamp, DistortionHelper distorter, IImageToViewportTransformer transformer, bool zooming)
{
// Convention: miss = -1, object = 0, handle = n.
int result = -1;
double opacityFactor = infosFading.GetOpacityTrackable(trackingTimestamps, currentTimestamp);
if (opacityFactor > 0)
{
if (HitTester.HitTest(points["o"], point, transformer))
{
result = 1;
}
else if (HitTester.HitTest(points["a"], point, transformer))
{
result = 2;
}
else if (HitTester.HitTest(points["b"], point, transformer))
{
result = 3;
}
else if (IsPointInObject(point))
{
result = 0;
}
}
return(result);
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
double opacityFactor = infosFading.GetOpacityFactor(currentTimestamp);
if (opacityFactor <= 0)
{
return;
}
QuadrilateralF quad = transformer.Transform(quadImage);
int alpha = (int)(opacityFactor * 255);
using (Pen p = styleHelper.GetPen(alpha, transformer.Scale))
{
p.EndCap = LineCap.Square;
if (styleHelper.PenShape == PenShape.Dash)
{
p.DashStyle = DashStyle.Dash;
}
canvas.DrawLine(p, quad.A, quad.B);
canvas.DrawLine(p, quad.B, quad.C);
canvas.DrawLine(p, quad.C, quad.D);
canvas.DrawLine(p, quad.D, quad.A);
}
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
double opacityFactor = infosFading.GetOpacityFactor(currentTimestamp);
if (opacityFactor <= 0)
{
return;
}
using (Pen penLine = styleHelper.GetPen(opacityFactor, transformer.Scale))
{
Point[] points = transformer.Transform(pointList).ToArray();
if (!initializing)
{
penLine.EndCap = LineCap.Round;
penLine.StartCap = LineCap.Round;
if (styleHelper.PenShape == PenShape.Dash)
{
penLine.DashStyle = DashStyle.Dash;
}
canvas.DrawCurve(penLine, points, 0.5f);
}
else
{
penLine.Width = 1.0f;
canvas.DrawLines(penLine, points);
}
}
}
public override int HitTest(PointF point, long currentTimestamp, DistortionHelper distorter, IImageToViewportTransformer transformer, bool zooming)
{
// Convention: miss = -1, object = 0, handle = n.
if (!Visible)
{
return(-1);
}
int result = -1;
if (HitTester.HitTest(points["0"], point, transformer))
{
return(1);
}
if (showGrid || showGraduations || showAxis)
{
CoordinateSystemGrid grid = CalibrationHelper.GetCoordinateSystemGrid();
if (grid == null)
{
return(-1);
}
if (grid.HorizontalAxis != null && IsPointOnRectifiedLine(point, grid.HorizontalAxis.Start, grid.HorizontalAxis.End, distorter, transformer))
{
result = 2;
}
else if (grid.VerticalAxis != null && IsPointOnRectifiedLine(point, grid.VerticalAxis.Start, grid.VerticalAxis.End, distorter, transformer))
{
result = 3;
}
}
return(result);
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
double opacityFactor = infosFading.GetOpacityTrackable(trackingTimestamps, currentTimestamp);
if (opacityFactor <= 0)
{
return;
}
Point start = transformer.Transform(points["a"]);
Point end = transformer.Transform(points["b"]);
using (Pen penEdges = styleHelper.GetPen(opacityFactor, transformer.Scale))
using (Brush brush = styleHelper.GetBrush(opacityFactor))
{
if (distorter != null && distorter.Initialized)
{
DrawDistorted(canvas, distorter, transformer, penEdges, brush, start, end);
}
else
{
DrawStraight(canvas, transformer, penEdges, brush, start, end);
}
}
if (trackExtraData != TrackExtraData.None)
{
string text = GetExtraDataText();
miniLabel.SetText(text);
miniLabel.Draw(canvas, transformer, opacityFactor);
}
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
foreach (AutoNumber number in autoNumbers)
{
number.Draw(canvas, transformer, currentTimestamp, styleHelper);
}
}
public override int HitTest(PointF point, long currentTimestamp, DistortionHelper distorter, IImageToViewportTransformer transformer, bool zooming)
{
double opacity = infosFading.GetOpacityFactor(currentTimestamp);
if (opacity <= 0)
{
return(-1);
}
// Background label: 0, hidden resizer: 1, arrow end: 2.
if (showArrow)
{
if (HitTester.HitTest(arrowEnd, point, transformer))
{
return(2);
}
if (IsPointOnSegment(point, background.Rectangle.Center(), arrowEnd, transformer))
{
return(0);
}
}
// Compute the size of the hidden handle zone based on the font size.
using (Font fontText = styleHelper.GetFont(1.0f))
{
int roundingRadius = fontText.Height / 4;
return(background.HitTest(point, true, (int)(roundingRadius * 1.8f), transformer));
}
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
double opacityFactor = infosFading.GetOpacityFactor(currentTimestamp);
if (opacityFactor <= 0)
{
return;
}
int alpha = (int)(opacityFactor * 255);
this.selected = selected;
using (Pen p = styleHelper.GetPen(alpha, transformer.Scale))
{
Rectangle boundingBox = transformer.Transform(center.Box(radius));
canvas.DrawEllipse(p, boundingBox);
if (selected)
{
// Handler: arc in lower right quadrant.
p.Color = p.Color.Invert();
canvas.DrawArc(p, boundingBox, 25, 40);
}
}
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
double opacityFactor = infosFading.GetOpacityFactor(currentTimestamp);
if (opacityFactor <= 0 || !loaded)
{
return;
}
Rectangle rect = transformer.Transform(boundingBox.Rectangle);
if (finishedResizing)
{
finishedResizing = false;
RenderAtNewScale(rect.Size, transformer.Scale);
}
if (svgRendered == null)
{
return;
}
fadingColorMatrix.Matrix33 = (float)opacityFactor;
fadingImgAttr.SetColorMatrix(fadingColorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
canvas.DrawImage(svgRendered, rect, 0, 0, svgRendered.Width, svgRendered.Height, GraphicsUnit.Pixel, fadingImgAttr);
if (selected)
{
boundingBox.Draw(canvas, rect, penBoundingBox, brushBoundingBox, 4);
}
}
public override int HitTest(PointF point, long currentTimestamp, DistortionHelper distorter, IImageToViewportTransformer transformer, bool zooming)
{
int result = -1;
double opacity = infosFading.GetOpacityFactor(currentTimestamp);
if (!tracking && opacity <= 0)
{
return(-1);
}
foreach (KeyValuePair <string, PointF> p in points)
{
if (HitTester.HitTest(p.Value, point, transformer))
{
result = int.Parse(p.Key) + 1;
}
}
if (result == -1 && IsPointInObject(point, distorter, transformer))
{
result = 0;
}
return(result);
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
if (!valid)
{
return;
}
double opacityFactor = infosFading.GetOpacityFactor(currentTimestamp);
if (opacityFactor <= 0)
{
return;
}
Rectangle rect = transformer.Transform(boundingBox.Rectangle);
fadingColorMatrix.Matrix33 = (float)opacityFactor;
fadingImgAttr.SetColorMatrix(fadingColorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
canvas.DrawImage(bitmap, rect, 0, 0, bitmap.Width, bitmap.Height, GraphicsUnit.Pixel, fadingImgAttr);
if (selected)
{
boundingBox.Draw(canvas, rect, penBoundingBox, brushBoundingBox, 4);
}
}
public override int HitTest(PointF point, long currentTimestamp, DistortionHelper distorter, IImageToViewportTransformer transformer, bool zooming)
{
// Convention: miss = -1, object = 0, handle = n.
// We do not need a special case to hit the radius or diameter line as they are inside the circle and
// don't have special handling compared to just moving the whole thing.
double opacity = infosFading.GetOpacityFactor(currentTimestamp);
if (opacity <= 0)
{
return(-1);
}
if (trackExtraData != TrackExtraData.None && miniLabel.HitTest(point, transformer))
{
return(2);
}
if (IsPointOnHandler(point, transformer))
{
return(1);
}
if (IsPointInObject(point, transformer))
{
return(0);
}
return(-1);
}
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);
}
}
private bool IsOnDrawing(Metadata metadata, int activeKeyFrameIndex, PointF mouseCoordinates, long currentTimeStamp, bool allFrames)
{
if (metadata.Keyframes.Count == 0)
{
return(false);
}
bool bIsOnDrawing = false;
DistortionHelper distorter = metadata.CalibrationHelper.DistortionHelper;
if (allFrames && metadata.Keyframes.Count > 0)
{
int[] zOrder = metadata.GetKeyframesZOrder(currentTimeStamp);
for (int i = 0; i < zOrder.Length; i++)
{
bIsOnDrawing = DrawingHitTest(metadata, zOrder[i], mouseCoordinates, currentTimeStamp, distorter, metadata.CoordinateSystem);
if (bIsOnDrawing)
{
break;
}
}
}
else if (activeKeyFrameIndex >= 0)
{
bIsOnDrawing = DrawingHitTest(metadata, activeKeyFrameIndex, mouseCoordinates, metadata[activeKeyFrameIndex].Position, distorter, metadata.CoordinateSystem);
}
return(bIsOnDrawing);
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
if (!Visible || imageSize == SizeF.Empty)
{
return;
}
DrawGrid(canvas, transformer);
}
public override int HitTest(PointF point, long currentTimestamp, DistortionHelper distorter, IImageToViewportTransformer transformer, bool zooming)
{
int result = -1;
double opacity = infosFading.GetOpacityFactor(currentTimestamp);
if (opacity > 0 && IsPointInObject(point, transformer))
{
result = 0;
}
return(result);
}
private void RenderDrawings(Metadata metadata, long timestamp, Graphics canvas, ImageToViewportTransformer transformer)
{
DistortionHelper distorter = metadata.CalibrationHelper.DistortionHelper;
foreach (Keyframe keyframe in metadata.Keyframes)
{
foreach (AbstractDrawing drawing in keyframe.Drawings)
{
drawing.Draw(canvas, distorter, transformer, drawing == metadata.HitDrawing, timestamp);
}
}
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
if (currentTimestamp < visibleTimestamp)
{
return;
}
double opacityFactor = 1.0;
if (currentTimestamp > invisibleTimestamp)
{
opacityFactor = infosFading.GetOpacityFactor(currentTimestamp);
}
if (opacityFactor <= 0)
{
return;
}
timecode = GetTimecode(currentTimestamp);
string text = timecode;
using (SolidBrush brushBack = styleHelper.GetBackgroundBrush((int)(opacityFactor * 128)))
using (SolidBrush brushText = styleHelper.GetForegroundBrush((int)(opacityFactor * 255)))
using (Font fontText = styleHelper.GetFont((float)transformer.Scale))
{
SizeF textSize = canvas.MeasureString(text, fontText);
Point bgLocation = transformer.Transform(mainBackground.Rectangle.Location);
Size bgSize = new Size((int)textSize.Width, (int)textSize.Height);
SizeF untransformed = transformer.Untransform(textSize);
mainBackground.Rectangle = new RectangleF(mainBackground.Rectangle.Location, untransformed);
Rectangle rect = new Rectangle(bgLocation, bgSize);
int roundingRadius = fontText.Height / 4;
RoundedRectangle.Draw(canvas, rect, brushBack, roundingRadius, false, false, null);
canvas.DrawString(text, fontText, brushText, rect.Location);
if (showLabel && name.Length > 0)
{
using (Font fontLabel = styleHelper.GetFont((float)transformer.Scale * 0.5f))
{
// Note: the alignment here assumes fixed margins of the rounded rectangle class.
SizeF lblTextSize = canvas.MeasureString(name, fontLabel);
int labelRoundingRadius = fontLabel.Height / 3;
int top = rect.Location.Y - (int)lblTextSize.Height - roundingRadius - labelRoundingRadius;
Rectangle lblRect = new Rectangle(rect.Location.X, top, (int)lblTextSize.Width, (int)lblTextSize.Height);
RoundedRectangle.Draw(canvas, lblRect, brushBack, labelRoundingRadius, true, false, null);
canvas.DrawString(name, fontLabel, brushText, lblRect.Location);
}
}
}
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
// We draw a single translucent black rectangle to cover the whole image.
// (Opacity varies between 0% and 50%, depending on the opacity factor of the closest spotlight in time)
if (spotlights.Count < 1)
{
return;
}
// Create a mask rectangle and obliterate spotlights from it.
// FIXME: spots subtract from each other which is not desirable.
// TODO: might be better to first get the opacity, then only ask for the path. In case opacity is 0.
GraphicsPath globalPath = new GraphicsPath();
globalPath.AddRectangle(canvas.ClipBounds);
// Combine all spots into a single GraphicsPath.
// Get their opacity in the process to compute the global opacity of the covering rectangle.
double maxOpacity = 0.0;
GraphicsPath spotsPath = new GraphicsPath();
foreach (Spotlight spot in spotlights)
{
double opacity = spot.AddSpot(currentTimestamp, spotsPath, transformer);
maxOpacity = Math.Max(maxOpacity, opacity);
}
if (maxOpacity <= 0)
{
return;
}
// Obliterate the spots from the mask.
globalPath.AddPath(spotsPath, false);
// Draw the mask with the spot holes on top of the frame.
int backgroundAlpha = (int)((double)defaultBackgroundAlpha * maxOpacity);
using (SolidBrush brushBackground = new SolidBrush(Color.FromArgb(backgroundAlpha, backgroundColor)))
{
canvas.FillPath(brushBackground, globalPath);
}
// Draw each spot border or any visuals.
foreach (Spotlight spot in spotlights)
{
spot.Draw(canvas, currentTimestamp);
}
globalPath.Dispose();
spotsPath.Dispose();
}
public override void Draw(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, bool selected, long currentTimestamp)
{
double opacityFactor = infosFading.GetOpacityFactor(currentTimestamp);
if (opacityFactor <= 0)
{
return;
}
List <Point> screenPoints = transformer.Transform(points);
using (penEdges = styleHelper.GetPen(opacityFactor, 1.0))
using (SolidBrush br = styleHelper.GetBrush(opacityFactor))
{
int rows = subdivisions + 1;
int cols = rows;
// Rows
for (int i = 0; i < rows; i++)
{
int row = i;
List <Point> line = new List <Point>();
for (int j = 0; j < cols; j++)
{
int index = row * cols + j;
line.Add(screenPoints[index]);
}
canvas.DrawCurve(penEdges, line.ToArray());
}
// Columns
for (int i = 0; i < cols; i++)
{
int col = i;
List <Point> line = new List <Point>();
for (int j = 0; j < rows; j++)
{
int index = j * cols + col;
line.Add(screenPoints[index]);
}
canvas.DrawCurve(penEdges, line.ToArray());
}
// Handles
foreach (PointF p in screenPoints)
{
canvas.FillEllipse(br, p.Box(4));
}
}
}
public override int HitTest(PointF point, long currentTimestamp, DistortionHelper distorter, IImageToViewportTransformer transformer, bool zooming)
{
if (!valid)
{
return(-1);
}
if (infosFading.GetOpacityFactor(currentTimestamp) <= 0)
{
return(-1);
}
return(boundingBox.HitTest(point, transformer));
}
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;
}
ComputeValues(transformer);
Point pointO = transformer.Transform(points["o"]);
Point pointA = transformer.Transform(points["a"]);
Point pointB = transformer.Transform(points["b"]);
Rectangle boundingBox = transformer.Transform(angleHelper.SweepAngle.BoundingBox);
if (boundingBox.Size == Size.Empty)
{
return;
}
using (Pen penEdges = styleHelper.GetBackgroundPen((int)(opacityFactor * 255)))
using (SolidBrush brushEdges = styleHelper.GetBackgroundBrush((int)(opacityFactor * 255)))
using (SolidBrush brushFill = styleHelper.GetBackgroundBrush((int)(opacityFactor * defaultBackgroundAlpha)))
{
penEdges.Width = 2;
// Disk section
canvas.FillPie(brushFill, boundingBox, angleHelper.SweepAngle.Start, angleHelper.SweepAngle.Sweep);
canvas.DrawArc(penEdges, boundingBox, angleHelper.SweepAngle.Start, angleHelper.SweepAngle.Sweep);
// Edges
penEdges.DashStyle = DashStyle.Dash;
canvas.DrawLine(penEdges, pointO, pointA);
penEdges.DashStyle = DashStyle.Solid;
canvas.DrawLine(penEdges, pointO, pointB);
// Handlers
canvas.DrawEllipse(penEdges, pointO.Box(3));
canvas.FillEllipse(brushEdges, pointA.Box(3));
canvas.FillEllipse(brushEdges, pointB.Box(3));
angleHelper.DrawText(canvas, opacityFactor, brushFill, pointO, transformer, CalibrationHelper, styleHelper);
}
}
private void DrawGridLine(Graphics canvas, DistortionHelper distorter, IImageToViewportTransformer transformer, Pen penLine, PointF a, PointF b)
{
if (distorter != null && distorter.Initialized)
{
List <PointF> curve = distorter.DistortRectifiedLine(a, b);
List <Point> transformed = transformer.Transform(curve);
canvas.DrawCurve(penLine, transformed.ToArray());
}
else
{
PointF p1 = transformer.Transform(a);
PointF p2 = transformer.Transform(b);
canvas.DrawLine(penLine, p1, p2);
}
}