private void DrawSelfSignal(IDrawingCanvas drawingCanvas, SignalVisualElement signal)
{
// Actor line position
double aX = GetCenterX(signal.ActorA) + signal.ActorA.OffsetX;
// Left and right edges of self-signal line
double x1 = aX;
double x2 = x1 + s_selfSignalWidth;
// Top and bottom of self-signal line
double y1 = signal.OffsetY + s_signalMargin.Top;
double y2 = signal.OffsetY + signal.TextBB.Height - s_signalMargin.Bottom;
// Position of signal text
double x = x2 + s_signalPadding.Left;
double y = y1 + s_signalPadding.Top;
// Draw the text so that its left edge is along the vertical segment of the self-signal
signal.Text.TextAlignment = TextAlignment.Left;
signal.Text.SetForegroundBrush(SignalForeground);
drawingCanvas.DrawText(x, y, signal.Text);
// Draw three lines, the last one with an arrow
drawingCanvas.DrawLine(x1, y1, x2, y1, signal.LineType, SequenceArrowType.None);
drawingCanvas.DrawLine(x2, y1, x2, y2, signal.LineType, SequenceArrowType.None);
drawingCanvas.DrawLine(x2, y2, x1, y2, signal.LineType, signal.ArrowType);
}
private void DrawActors(IDrawingCanvas drawingCanvas)
{
if (m_actorVisualElements == null)
{
return;
}
foreach (var actor in m_actorVisualElements)
{
// Vertical line
double x = GetCenterX(actor) + actor.OffsetX;
drawingCanvas.DrawLine(
x, m_actorsHeight / 2,
x, m_annotationsBottom + m_actorsHeight / 2,
SequenceLineType.Solid,
SequenceArrowType.None
);
// Top box
DrawActor(drawingCanvas, actor, 0);
// Bottom box
DrawActor(drawingCanvas, actor, m_annotationsBottom);
}
}
private void DrawSignal(IDrawingCanvas drawingCanvas, SignalVisualElement signal)
{
double aX = GetCenterX(signal.ActorA) + signal.ActorA.OffsetX;
double bX = GetCenterX(signal.ActorB) + signal.ActorB.OffsetX;
// Mid-point between actors
double x = (bX + aX) / 2;
double y = signal.OffsetY + s_signalMargin.Top + s_signalPadding.Top;
// Draw the text in the middle of the signal
signal.Text.TextAlignment = TextAlignment.Center;
signal.Text.SetForegroundBrush(SignalForeground);
drawingCanvas.DrawText(x, y, signal.Text);
// Draw the line along the bottom of the signal
y = signal.OffsetY + signal.TextBB.Height - s_signalMargin.Bottom;
drawingCanvas.DrawLine(aX, y, bX, y, signal.LineType, signal.ArrowType);
}