public override void performLayout(Size size)
{
Size iconSize = null;
if (hasChild(dropdownIcon))
{
iconSize = layoutChild(dropdownIcon, BoxConstraints.loose(size));
positionChild(dropdownIcon, _offsetForIcon(size, iconSize));
}
string bottomLine = hasChild(accountEmail)
? accountEmail
: (hasChild(accountName) ? accountName : null);
if (bottomLine != null)
{
Size constraintSize = iconSize == null ? size : size - new Offset(iconSize.width, 0.0f);
iconSize = iconSize ?? new Size(UserAccountsDrawerHeaderUtils._kAccountDetailsHeight,
UserAccountsDrawerHeaderUtils._kAccountDetailsHeight);
Size bottomLineSize = layoutChild(bottomLine, BoxConstraints.loose(constraintSize));
Offset bottomLineOffset = _offsetForBottomLine(size, iconSize, bottomLineSize);
positionChild(bottomLine, bottomLineOffset);
if (bottomLine == accountEmail && hasChild(accountName))
{
Size nameSize = layoutChild(accountName, BoxConstraints.loose(constraintSize));
positionChild(accountName, _offsetForName(size, nameSize, bottomLineOffset));
}
}
}
public override BoxConstraints getConstraintsForChild(BoxConstraints constraints)
{
return(BoxConstraints.loose(
constraints.biggest - new Offset(material_._kMenuScreenPadding * 2.0f,
material_._kMenuScreenPadding * 2.0f)
));
}
public override void performLayout(Size size)
{
const float margin = 56.0f;
bool landscape = size.width > size.height;
float imageWidth = (landscape ? size.width / 2.0f : size.width) - margin * 2.0f;
BoxConstraints imageConstraints = new BoxConstraints(maxHeight: 224.0f, maxWidth: imageWidth);
Size imageSize = this.layoutChild(image, imageConstraints);
const float imageY = 0.0f;
this.positionChild(image, new Offset(margin, imageY));
float productWidth = landscape ? size.width / 2.0f : size.width - margin;
BoxConstraints productConstraints = new BoxConstraints(maxWidth: productWidth);
Size productSize = this.layoutChild(product, productConstraints);
float productX = landscape ? size.width / 2.0f : margin;
float productY = landscape ? 0.0f : imageY + imageSize.height + 16.0f;
this.positionChild(product, new Offset(productX, productY));
Size iconSize = this.layoutChild(icon, BoxConstraints.loose(size));
this.positionChild(icon, new Offset(productX - iconSize.width - 16.0f, productY + 8.0f));
float vendorWidth = landscape ? size.width - margin : productWidth;
this.layoutChild(vendor, new BoxConstraints(maxWidth: vendorWidth));
float vendorX = landscape ? margin : productX;
float vendorY = productY + productSize.height + 16.0f;
this.positionChild(vendor, new Offset(vendorX, vendorY));
}
public override BoxConstraints getConstraintsForChild(BoxConstraints constraints)
{
return(BoxConstraints.loose(constraints.biggest -
new Offset(
PopupMenuUtils._kMenuScreenPadding * 2.0f,
PopupMenuUtils._kMenuScreenPadding * 2.0f)));
}
public override void performLayout(Size size)
{
float columnCardX = size.width / 5.0f;
float columnCardWidth = size.width - columnCardX;
float columnCardHeight = size.height / this.cardCount;
float rowCardWidth = size.width;
Offset offset = this.translation.alongSize(size);
float columnCardY = 0.0f;
float rowCardX = -(this.selectedIndex * rowCardWidth);
float columnTitleX = size.width / 10.0f;
float rowTitleWidth = size.width * ((1 + this.tCollapsed) / 2.25f);
float rowTitleX = (size.width - rowTitleWidth) / 2.0f - this.selectedIndex * rowTitleWidth;
const float paddedSectionIndicatorWidth = AnimationWidgetsUtils.kSectionIndicatorWidth + 8.0f;
float rowIndicatorWidth = paddedSectionIndicatorWidth +
(1.0f - this.tCollapsed) * (rowTitleWidth - paddedSectionIndicatorWidth);
float rowIndicatorX = (size.width - rowIndicatorWidth) / 2.0f - this.selectedIndex * rowIndicatorWidth;
for (int index = 0; index < this.cardCount; index++)
{
Rect columnCardRect = Rect.fromLTWH(columnCardX, columnCardY, columnCardWidth, columnCardHeight);
Rect rowCardRect = Rect.fromLTWH(rowCardX, 0.0f, rowCardWidth, size.height);
Rect cardRect = this._interpolateRect(columnCardRect, rowCardRect).shift(offset);
string cardId = $"card{index}";
if (this.hasChild(cardId))
{
this.layoutChild(cardId, BoxConstraints.tight(cardRect.size));
this.positionChild(cardId, cardRect.topLeft);
}
Size titleSize = this.layoutChild($"title{index}", BoxConstraints.loose(cardRect.size));
float columnTitleY = columnCardRect.centerLeft.dy - titleSize.height / 2.0f;
float rowTitleY = rowCardRect.centerLeft.dy - titleSize.height / 2.0f;
float centeredRowTitleX = rowTitleX + (rowTitleWidth - titleSize.width) / 2.0f;
Offset columnTitleOrigin = new Offset(columnTitleX, columnTitleY);
Offset rowTitleOrigin = new Offset(centeredRowTitleX, rowTitleY);
Offset titleOrigin = this._interpolatePoint(columnTitleOrigin, rowTitleOrigin);
this.positionChild($"title{index}", titleOrigin + offset);
Size indicatorSize = this.layoutChild($"indicator{index}", BoxConstraints.loose(cardRect.size));
float columnIndicatorX = cardRect.centerRight.dx - indicatorSize.width - 16.0f;
float columnIndicatorY = cardRect.bottomRight.dy - indicatorSize.height - 16.0f;
Offset columnIndicatorOrigin = new Offset(columnIndicatorX, columnIndicatorY);
Rect titleRect = Rect.fromPoints(titleOrigin, titleSize.bottomRight(titleOrigin));
float centeredRowIndicatorX = rowIndicatorX + (rowIndicatorWidth - indicatorSize.width) / 2.0f;
float rowIndicatorY = titleRect.bottomCenter.dy + 16.0f;
Offset rowIndicatorOrigin = new Offset(centeredRowIndicatorX, rowIndicatorY);
Offset indicatorOrigin = this._interpolatePoint(columnIndicatorOrigin, rowIndicatorOrigin);
this.positionChild($"indicator{index}", indicatorOrigin + offset);
columnCardY += columnCardHeight;
rowCardX += rowCardWidth;
rowTitleX += rowTitleWidth;
rowIndicatorX += rowIndicatorWidth;
}
}
void _layoutChildren()
{
BoxConstraints sizedConstraints = _overflowOpen
? constraints
: BoxConstraints.loose(new Size(
constraints.maxWidth,
MaterialUtils._kToolbarHeight
));
int i = -1;
float width = 0.0f;
visitChildren((RenderObject renderObjectChild) => {
i++;
if (_lastIndexThatFits != -1 && !overflowOpen)
{
return;
}
RenderBox child = renderObjectChild as RenderBox;
child.layout(sizedConstraints.loosen(), parentUsesSize: true);
width += child.size.width;
if (width > sizedConstraints.maxWidth && _lastIndexThatFits == -1)
{
_lastIndexThatFits = i - 1;
}
});
RenderBox navButton = firstChild;
if (_lastIndexThatFits != -1 &&
_lastIndexThatFits == childCount - 2 &&
width - navButton.size.width <= sizedConstraints.maxWidth)
{
_lastIndexThatFits = -1;
}
}
public override void performLayout(Size size)
{
Size priceSize = this.layoutChild(price, BoxConstraints.loose(size));
this.positionChild(price, new Offset(size.width - priceSize.width, 0.0f));
float halfWidth = size.width / 2.0f;
float halfHeight = size.height / 2.0f;
const float halfUnit = ShrineHomeUtils.unitSize / 2.0f;
const float margin = 16.0f;
Size imageSize = this.layoutChild(image, BoxConstraints.loose(size));
float imageX = imageSize.width < halfWidth - halfUnit
? halfWidth / 2.0f - imageSize.width / 2.0f - halfUnit
: halfWidth - imageSize.width;
this.positionChild(image, new Offset(imageX, halfHeight - imageSize.height / 2.0f));
float maxTitleWidth = halfWidth + ShrineHomeUtils.unitSize - margin;
BoxConstraints titleBoxConstraints = new BoxConstraints(maxWidth: maxTitleWidth);
Size titleSize = this.layoutChild(title, titleBoxConstraints);
float titleX = halfWidth - ShrineHomeUtils.unitSize;
float titleY = halfHeight - titleSize.height;
this.positionChild(title, new Offset(titleX, titleY));
Size descriptionSize = this.layoutChild(description, titleBoxConstraints);
float descriptionY = titleY + titleSize.height + margin;
this.positionChild(description, new Offset(titleX, descriptionY));
this.layoutChild(vendor, titleBoxConstraints);
float vendorY = descriptionY + descriptionSize.height + margin;
this.positionChild(vendor, new Offset(titleX, vendorY));
}
public override void performLayout(Size size)
{
float leadingWidth = 0.0f;
float trailingWidth = 0.0f;
if (this.hasChild(_ToolbarSlot.leading))
{
BoxConstraints constraints = new BoxConstraints(
minWidth: 0.0f,
maxWidth: size.width / 3.0f,
minHeight: size.height,
maxHeight: size.height
);
leadingWidth = this.layoutChild(_ToolbarSlot.leading, constraints).width;
float leadingX = 0.0f;
switch (this.textDirection)
{
case TextDirection.rtl:
leadingX = size.width - leadingWidth;
break;
case TextDirection.ltr:
leadingX = 0.0f;
break;
}
this.positionChild(_ToolbarSlot.leading, new Offset(leadingX, 0.0f));
}
if (this.hasChild(_ToolbarSlot.trailing))
{
BoxConstraints constraints = BoxConstraints.loose(size);
Size trailingSize = this.layoutChild(_ToolbarSlot.trailing, constraints);
float trailingX = 0.0f;
switch (this.textDirection)
{
case TextDirection.rtl:
trailingX = 0.0f;
break;
case TextDirection.ltr:
trailingX = size.width - trailingSize.width;
break;
}
float trailingY = (size.height - trailingSize.height) / 2.0f;
trailingWidth = trailingSize.width;
this.positionChild(_ToolbarSlot.trailing, new Offset(trailingX, trailingY));
}
if (this.hasChild(_ToolbarSlot.middle))
{
float maxWidth = Mathf.Max(size.width - leadingWidth - trailingWidth - this.middleSpacing * 2.0f, 0.0f);
BoxConstraints constraints = BoxConstraints.loose(size).copyWith(maxWidth: maxWidth);
Size middleSize = this.layoutChild(_ToolbarSlot.middle, constraints);
float middleStartMargin = leadingWidth + this.middleSpacing;
float middleStart = middleStartMargin;
float middleY = (size.height - middleSize.height) / 2.0f;
// If the centered middle will not fit between the leading and trailing
// widgets, then align its left or right edge with the adjacent boundary.
if (this.centerMiddle)
{
middleStart = (size.width - middleSize.width) / 2.0f;
if (middleStart + middleSize.width > size.width - trailingWidth)
{
middleStart = size.width - trailingWidth - middleSize.width;
}
else if (middleStart < middleStartMargin)
{
middleStart = middleStartMargin;
}
}
float middleX = 0.0f;
switch (this.textDirection)
{
case TextDirection.rtl:
middleX = size.width - middleSize.width - middleStart;
break;
case TextDirection.ltr:
middleX = middleStart;
break;
}
this.positionChild(_ToolbarSlot.middle, new Offset(middleX, middleY));
}
}
public override void performLayout(Size size)
{
float leadingWidth = 0.0f;
float trailingWidth = 0.0f;
if (hasChild(_ToolbarSlot.leading))
{
BoxConstraints constraints = new BoxConstraints(
minWidth: 0.0f,
maxWidth: size.width / 3.0f,
minHeight: size.height,
maxHeight: size.height
);
leadingWidth = layoutChild(_ToolbarSlot.leading, constraints).width;
float leadingX = 0.0f;
switch (textDirection)
{
case TextDirection.rtl:
leadingX = size.width - leadingWidth;
break;
case TextDirection.ltr:
leadingX = 0.0f;
break;
}
positionChild(_ToolbarSlot.leading, new Offset(leadingX, 0.0f));
}
if (hasChild(_ToolbarSlot.trailing))
{
BoxConstraints constraints = BoxConstraints.loose(size);
Size trailingSize = layoutChild(_ToolbarSlot.trailing, constraints);
float trailingX = 0.0f;
switch (textDirection)
{
case TextDirection.rtl:
trailingX = 0.0f;
break;
case TextDirection.ltr:
trailingX = size.width - trailingSize.width;
break;
}
float trailingY = (size.height - trailingSize.height) / 2.0f;
trailingWidth = trailingSize.width;
positionChild(_ToolbarSlot.trailing, new Offset(trailingX, trailingY));
}
if (hasChild(_ToolbarSlot.middle))
{
float maxWidth = Mathf.Max(size.width - leadingWidth - trailingWidth - middleSpacing * 2.0f, 0.0f);
BoxConstraints constraints = BoxConstraints.loose(size).copyWith(maxWidth: maxWidth);
Size middleSize = layoutChild(_ToolbarSlot.middle, constraints);
float middleStartMargin = leadingWidth + middleSpacing;
float middleStart = middleStartMargin;
float middleY = (size.height - middleSize.height) / 2.0f;
if (centerMiddle)
{
middleStart = (size.width - middleSize.width) / 2.0f;
if (middleStart + middleSize.width > size.width - trailingWidth)
{
middleStart = size.width - trailingWidth - middleSize.width;
}
else if (middleStart < middleStartMargin)
{
middleStart = middleStartMargin;
}
}
float middleX = 0.0f;
switch (textDirection)
{
case TextDirection.rtl:
middleX = size.width - middleSize.width - middleStart;
break;
case TextDirection.ltr:
middleX = middleStart;
break;
}
positionChild(_ToolbarSlot.middle, new Offset(middleX, middleY));
}
}
