public override void paint(PaintingContext context, Offset offset)
{
if (this.child != null)
{
context.pushTransform(this.needsCompositing, offset, this._paintTransform, this._paintChild);
}
}
void _paintChildCylindrically(
PaintingContext context,
Offset offset,
RenderBox child,
Matrix4 cylindricalTransform,
Offset offsetToCenter
)
{
PaintingContextCallback painter = (PaintingContext _context, Offset _offset) => {
_context.paintChild(
child,
_offset + offsetToCenter
);
};
PaintingContextCallback opacityPainter = (PaintingContext context2, Offset offset2) => {
context2.pushOpacity(offset2, (overAndUnderCenterOpacity * 255).round(), painter);
};
context.pushTransform(
needsCompositing,
offset,
_centerOriginTransform(cylindricalTransform),
// Pre-transform painting function.
overAndUnderCenterOpacity == 1 ? painter : opacityPainter
);
}
void _paintChildCylindrically(
PaintingContext context,
Offset offset,
RenderBox child,
// Matrix4x4 cylindricalTransform,
Matrix3 cylindricalTransform,
Offset offsetToCenter
)
{
context.pushTransform(
false,
offset,
cylindricalTransform,
// this._centerOriginTransform(cylindricalTransform),
(PaintingContext _context, Offset _offset) => { _context.paintChild(child, _offset + offsetToCenter); }
);
}
public override void paint(PaintingContext context, Offset offset)
{
_layoutTextWithConstraints(constraints);
D.assert(() => {
if (RenderingDebugUtils.debugRepaintTextRainbowEnabled)
{
Paint paint = new Paint();
paint.color = RenderingDebugUtils.debugCurrentRepaintColor.toColor();
context.canvas.drawRect(offset & size, paint);
}
return(true);
});
if (_needsClipping)
{
Rect bounds = offset & size;
if (_overflowShader != null)
{
context.canvas.saveLayer(bounds, new Paint());
}
else
{
context.canvas.save();
}
context.canvas.clipRect(bounds);
}
_textPainter.paint(context.canvas, offset);
RenderBox child = firstChild;
int childIndex = 0;
while (child != null && childIndex < _textPainter.inlinePlaceholderBoxes.Count)
{
TextParentData textParentData = child.parentData as TextParentData;
float scale = textParentData.scale;
context.pushTransform(
needsCompositing,
offset + textParentData.offset,
Matrix4.diagonal3Values(scale, scale, scale),
(PaintingContext context2, Offset offset2) => {
context2.paintChild(
child,
offset2
);
});
child = childAfter(child);
childIndex += 1;
}
if (_needsClipping)
{
if (_overflowShader != null)
{
context.canvas.translate(offset.dx, offset.dy);
Paint paint = new Paint();
paint.blendMode = BlendMode.modulate;
paint.shader = _overflowShader;
context.canvas.drawRect(Offset.zero & size, paint);
}
context.canvas.restore();
}
}
