discontinuedPackage jet_cad_floor_plan has been discontinued and replaced by jet_cad_2d_plan.

paintOverlay method

@override void paintOverlay(Canvas canvas, ViewportTransform camera, Size viewport, PaperPalette paper,)

Paints in screen space, after paintWorldOverlay. Every colour comes from paper, the overlay's own set for the paper under it (dark theme spec D5); none is kept in a field initialiser.

Implementation

@override
void paintOverlay(Canvas canvas, ViewportTransform camera, Size viewport,
    PaperPalette paper) {
  if (!_hoverVisible) return;
  _markerPaint.color = paper.snap;
  final m = camera.worldToScreenMatrix;
  final p = markerPoint;
  drawSnapMarker(
      canvas,
      Offset(m.a * p.x + m.c * p.y + m.e, m.b * p.x + m.d * p.y + m.f),
      _hover.objectKind,
      grid: _hover.grid,
      paint: _markerPaint);
}