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._overflow == Overflow.clip && this._hasVisualOverflow)
{
context.pushClipRect(this.needsCompositing, offset, Offset.zero & this.size, this.paintStack);
}
else
{
this.paintStack(context, offset);
}
}
public override void paint(PaintingContext context, Offset offset)
{
if (this._hasVisualOverflow)
{
context.pushClipRect(this.needsCompositing, offset, Offset.zero & this.size, this.defaultPaint);
}
else
{
this.defaultPaint(context, offset);
}
}
public override void paint(PaintingContext context, Offset offset)
{
if (_hasVisualOverflow)
{
context.pushClipRect(needsCompositing, offset, Offset.zero & size, paintStack);
}
else
{
paintStack(context, offset);
}
}
public override void paint(PaintingContext context, Offset offset)
{
if (this.child != null && this._hasVisualOverflow)
{
Rect rect = Offset.zero & this.size;
context.pushClipRect(this.needsCompositing, offset, rect, base.paint);
}
else
{
base.paint(context, offset);
}
}
public override void paint(PaintingContext context, Offset offset)
{
this._layoutText(this.constraints.maxWidth);
if (this._hasVisualOverflow)
{
context.pushClipRect(this.needsCompositing, offset, Offset.zero & this.size, this._paintContents);
}
else
{
this._paintContents(context, offset);
}
}
public override void paint(PaintingContext context, Offset offset)
{
if (this._overflow <= 0.0)
{
this.defaultPaint(context, offset);
return;
}
if (this.size.isEmpty)
{
return;
}
context.pushClipRect(this.needsCompositing, offset, Offset.zero & this.size, this.defaultPaint);
}
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);
}
public override void paint(PaintingContext context, Offset offset)
{
if (this.childCount > 0)
{
if (this._clipToSize && this._shouldClipAtCurrentOffset())
{
context.pushClipRect(
this.needsCompositing,
offset,
Offset.zero & this.size, this._paintVisibleChildren
);
}
else
{
this._paintVisibleChildren(context, offset);
}
}
}
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);
});
}
public override void paint(PaintingContext context, Offset offset)
{
if (this.child != null)
{
Offset paintOffset = this._paintOffset;
void paintContents(PaintingContext subContext, Offset SubOffset)
{
subContext.paintChild(this.child, SubOffset + paintOffset);
}
if (this._shouldClipAtPaintOffset(paintOffset))
{
context.pushClipRect(this.needsCompositing, offset, Offset.zero & this.size, paintContents);
}
else
{
paintContents(context, offset);
}
}
}
void _paintChildWithMagnifier(
PaintingContext context,
Offset offset,
RenderBox child,
// Matrix4x4 cylindricalTransform,
Matrix3 cylindricalTransform,
Offset offsetToCenter,
Offset untransformedPaintingCoordinates
)
{
float magnifierTopLinePosition = this.size.height / 2 - this._itemExtent * this._magnification / 2;
float magnifierBottomLinePosition = this.size.height / 2 + this._itemExtent * this._magnification / 2;
bool isAfterMagnifierTopLine = untransformedPaintingCoordinates.dy
>= magnifierTopLinePosition - this._itemExtent * this._magnification;
bool isBeforeMagnifierBottomLine = untransformedPaintingCoordinates.dy
<= magnifierBottomLinePosition;
if (isAfterMagnifierTopLine && isBeforeMagnifierBottomLine)
{
Rect centerRect = Rect.fromLTWH(
0.0f,
magnifierTopLinePosition, this.size.width, this._itemExtent * this._magnification);
Rect topHalfRect = Rect.fromLTWH(
0.0f,
0.0f, this.size.width,
magnifierTopLinePosition);
Rect bottomHalfRect = Rect.fromLTWH(
0.0f,
magnifierBottomLinePosition, this.size.width,
magnifierTopLinePosition);
context.pushClipRect(
false,
offset,
centerRect,
(PaintingContext context1, Offset offset1) => {
context1.pushTransform(
false,
offset1,
cylindricalTransform,
// this._centerOriginTransform(cylindricalTransform),
(PaintingContext context2, Offset offset2) => {
context2.paintChild(
child,
offset2 + untransformedPaintingCoordinates);
});
});
context.pushClipRect(
false,
offset,
untransformedPaintingCoordinates.dy <= magnifierTopLinePosition
? topHalfRect
: bottomHalfRect,
(PaintingContext context1, Offset offset1) => {
this._paintChildCylindrically(
context1,
offset1,
child,
cylindricalTransform,
offsetToCenter
);
}
);
}
else
{
this._paintChildCylindrically(
context,
offset,
child,
cylindricalTransform,
offsetToCenter
);
}
}
void _paintChildWithMagnifier(
PaintingContext context,
Offset offset,
RenderBox child,
Matrix4 cylindricalTransform,
Offset offsetToCenter,
Offset untransformedPaintingCoordinates
)
{
float magnifierTopLinePosition = size.height / 2 - _itemExtent * _magnification / 2;
float magnifierBottomLinePosition = size.height / 2 + _itemExtent * _magnification / 2;
bool isAfterMagnifierTopLine = untransformedPaintingCoordinates.dy
>= magnifierTopLinePosition - _itemExtent * _magnification;
bool isBeforeMagnifierBottomLine = untransformedPaintingCoordinates.dy
<= magnifierBottomLinePosition;
if (isAfterMagnifierTopLine && isBeforeMagnifierBottomLine)
{
Rect centerRect = Rect.fromLTWH(
0.0f,
magnifierTopLinePosition,
size.width,
_itemExtent * _magnification);
Rect topHalfRect = Rect.fromLTWH(
0.0f,
0.0f, size.width,
magnifierTopLinePosition);
Rect bottomHalfRect = Rect.fromLTWH(
0.0f,
magnifierBottomLinePosition,
size.width,
magnifierTopLinePosition);
context.pushClipRect(
needsCompositing,
offset,
centerRect,
(PaintingContext context1, Offset offset1) => {
context1.pushTransform(
needsCompositing,
offset1,
_magnifyTransform(),
(PaintingContext context2, Offset offset2) => {
context2.paintChild(child, offset2 + untransformedPaintingCoordinates);
});
});
context.pushClipRect(
needsCompositing,
offset,
untransformedPaintingCoordinates.dy <= magnifierTopLinePosition
? topHalfRect
: bottomHalfRect,
(PaintingContext context1, Offset offset1) => {
_paintChildCylindrically(
context1,
offset1,
child,
cylindricalTransform,
offsetToCenter
);
}
);
}
else
{
_paintChildCylindrically(
context,
offset,
child,
cylindricalTransform,
offsetToCenter
);
}
}