protected override void paintFeature(Canvas canvas, Matrix4 transform)
{
if (_painter == null)
{
return;
}
Offset originOffset = transform.getAsTranslation();
ImageConfiguration sizedConfiguration = configuration.copyWith(
size: referenceBox.size);
if (originOffset == null)
{
canvas.save();
canvas.transform(transform.storage);
_painter.paint(canvas, Offset.zero, sizedConfiguration);
canvas.restore();
}
else
{
_painter.paint(canvas, originOffset, sizedConfiguration);
}
}
public override void paint(Canvas canvas, Size size)
{
float selectedItemOffset = getSelectedItemOffset();
FloatTween top = new FloatTween(
begin: selectedItemOffset.clamp(0.0f, size.height - material_._kMenuItemHeight),
end: 0.0f
);
FloatTween bottom = new FloatTween(
begin: (top.begin + material_._kMenuItemHeight).clamp(material_._kMenuItemHeight,
size.height),
end: size.height
);
Rect rect = Rect.fromLTRB(0.0f, top.evaluate(resize), size.width, bottom.evaluate(resize));
_painter.paint(canvas, rect.topLeft, new ImageConfiguration(size: rect.size));
}