public override void applyPaintTransform(RenderObject child, Matrix4 transform)
{
_ToolbarParentData childParentData = child.parentData as _ToolbarParentData;
transform.translate(childParentData.offset.dx, childParentData.offset.dy);
base.applyPaintTransform(child, transform);
}
protected override bool hitTestChildren(BoxHitTestResult result, Offset position = null)
{
_ToolbarParentData childParentData = child.parentData as _ToolbarParentData;
return(result.addWithPaintOffset(
offset: childParentData.offset,
position: position,
hitTest: (BoxHitTestResult boxResult, Offset boxTransformed) => {
D.assert(boxTransformed == position - childParentData.offset);
return child.hitTest(boxResult, position: boxTransformed);
}
));
}
protected override void performLayout()
{
child.layout(constraints.loosen(), parentUsesSize: true);
if (!overflowOpen && _closedWidth == null)
{
_closedWidth = child.size.width;
}
size = constraints.constrain(new Size(
(_closedWidth == null || child.size.width > _closedWidth) ? child.size.width : _closedWidth.Value,
child.size.height
));
_ToolbarParentData childParentData = child.parentData as _ToolbarParentData;
childParentData.offset = new Offset(
size.width - child.size.width,
0.0f
);
}
public override void paint(PaintingContext context, Offset offset)
{
_ToolbarParentData childParentData = child.parentData as _ToolbarParentData;
context.paintChild(child, childParentData.offset + offset);
}