protected override void performLayout()
{
BoxConstraints constraints = this.constraints;
bool hasDivider = contentSection.getMaxIntrinsicHeight(constraints.maxWidth) > 0.0f &&
actionsSection.getMaxIntrinsicHeight(constraints.maxWidth) > 0.0f;
float dividerThickness = hasDivider ? _dividerThickness : 0.0f;
float minActionsHeight = actionsSection.getMinIntrinsicHeight(constraints.maxWidth);
contentSection.layout(
constraints.deflate(EdgeInsets.only(bottom: minActionsHeight + dividerThickness)),
parentUsesSize: true
);
Size contentSize = contentSection.size;
actionsSection.layout(
constraints.deflate(EdgeInsets.only(top: contentSize.height + dividerThickness)),
parentUsesSize: true
);
Size actionsSize = actionsSection.size;
float actionSheetHeight = contentSize.height + dividerThickness + actionsSize.height;
size = new Size(constraints.maxWidth, actionSheetHeight);
D.assert(actionsSection.parentData is MultiChildLayoutParentData);
MultiChildLayoutParentData actionParentData = actionsSection.parentData as MultiChildLayoutParentData;
actionParentData.offset = new Offset(0.0f, contentSize.height + dividerThickness);
}
protected override void performLayout()
{
BoxConstraints constraints = this.constraints;
_resolve();
D.assert(_resolvedPadding != null);
if (child == null)
{
size = constraints.constrain(new Size(
_resolvedPadding.left + _resolvedPadding.right,
_resolvedPadding.top + _resolvedPadding.bottom
));
return;
}
BoxConstraints innerConstraints = constraints.deflate(_resolvedPadding);
child.layout(innerConstraints, parentUsesSize: true);
BoxParentData childParentData = child.parentData as BoxParentData;
childParentData.offset = new Offset(_resolvedPadding.left, _resolvedPadding.top);
size = constraints.constrain(new Size(
_resolvedPadding.left + child.size.width + _resolvedPadding.right,
_resolvedPadding.top + child.size.height + _resolvedPadding.bottom
));
}
protected override void performLayout()
{
BoxConstraints constraints = this.constraints;
size = constraints.biggest;
if (child == null)
{
return;
}
BoxConstraints enforcedConstraint = constraints
.deflate(EdgeInsets.symmetric(horizontal: CupertinoTextSelectionUtils._kToolbarScreenPadding))
.loosen();
child.layout(heightConstraint.enforce(enforcedConstraint), parentUsesSize: true);
_ToolbarParentData childParentData = child.parentData as _ToolbarParentData;
float lowerBound = child.size.width / 2 + CupertinoTextSelectionUtils._kToolbarScreenPadding;
float upperBound = size.width - child.size.width / 2 - CupertinoTextSelectionUtils._kToolbarScreenPadding;
float adjustedCenterX = _arrowTipX.clamp(lowerBound, upperBound);
childParentData.offset = new Offset(adjustedCenterX - child.size.width / 2, _barTopY);
childParentData.arrowXOffsetFromCenter = _arrowTipX - adjustedCenterX;
}