public override void paint(PaintingContext context, Offset offset)
{
if (!_hasOverflow)
{
defaultPaint(context, offset);
return;
}
if (size.isEmpty)
{
return;
}
context.pushClipRect(needsCompositing, offset, Offset.zero & size, defaultPaint);
D.assert(() => {
List <DiagnosticsNode> debugOverflowHints = new List <DiagnosticsNode> {
new ErrorDescription(
$"The overflowing {GetType()} has an orientation of {_direction}."
),
new ErrorDescription(
$"The edge of the {GetType()} that is overflowing has been marked " +
"in the rendering with a yellow and black striped pattern. This is " +
"usually caused by the contents being too big for the {GetType()}."
),
new ErrorHint(
"Consider applying a flex factor (e.g. using an Expanded widget) to " +
$"force the children of the {GetType()} to fit within the available " +
"space instead of being sized to their natural size."
),
new ErrorHint(
"This is considered an error condition because it indicates that there " +
"is content that cannot be seen. If the content is legitimately bigger " +
"than the available space, consider clipping it with a ClipRect widget " +
"before putting it in the flex, or using a scrollable container rather " +
"than a Flex, like a ListView."
)
};
Rect overflowChildRect;
switch (_direction)
{
case Axis.horizontal:
overflowChildRect = Rect.fromLTWH(0.0f, 0.0f, size.width + _overflow, 0.0f);
break;
case Axis.vertical:
overflowChildRect = Rect.fromLTWH(0.0f, 0.0f, 0.0f, size.height + _overflow);
break;
default:
throw new Exception("Unknown direction: " + _direction);
}
DebugOverflowIndicatorMixin.paintOverflowIndicator(this, context, offset, Offset.zero & size,
overflowChildRect, overflowHints: debugOverflowHints);
return(true);
});
}
public override void paint(PaintingContext context, Offset offset)
{
if (this.child == null || this.size.isEmpty)
{
return;
}
if (!this._isOverflowing)
{
base.paint(context, offset);
return;
}
context.pushClipRect(this.needsCompositing, offset, Offset.zero & this.size, base.paint);
D.assert(() => {
DebugOverflowIndicatorMixin.paintOverflowIndicator(this, context, offset, this._overflowContainerRect, this._overflowChildRect);
return(true);
});
}