Widget _buildYearItem(BuildContext context, int index)
{
ColorScheme colorScheme = Theme.of(context).colorScheme;
TextTheme textTheme = Theme.of(context).textTheme;
// Backfill the _YearPicker with disabled years if necessary.
int offset = _itemCount < minYears ? (int)(1.0f * (minYears - _itemCount) / 2) : 0;
int year = widget.firstDate.Year + index - offset;
bool isSelected = year == widget.selectedDate.Year;
bool isCurrentYear = year == widget.currentDate.Year;
bool isDisabled = year <widget.firstDate.Year || year> widget.lastDate.Year;
const float decorationHeight = 36.0f;
const float decorationWidth = 72.0f;
Color textColor;
if (isSelected)
{
textColor = colorScheme.onPrimary;
}
else if (isDisabled)
{
textColor = colorScheme.onSurface.withOpacity(0.38f);
}
else if (isCurrentYear)
{
textColor = colorScheme.primary;
}
else
{
textColor = colorScheme.onSurface.withOpacity(0.87f);
}
TextStyle itemStyle = textTheme.bodyText1?.apply(color: textColor);
BoxDecoration decoration = null;
if (isSelected)
{
decoration = new BoxDecoration(
color: colorScheme.primary,
borderRadius: BorderRadius.circular(decorationHeight / 2),
shape: BoxShape.rectangle
);
}
else if (isCurrentYear && !isDisabled)
{
decoration = new BoxDecoration(
border: Border.all(
color: colorScheme.primary,
width: 1
),
borderRadius: BorderRadius.circular(decorationHeight / 2),
shape: BoxShape.rectangle
);
}
Widget yearItem = new Center(
child: new Container(
decoration: decoration,
height: decorationHeight,
width: decorationWidth,
child: new Center(
child: new Text(year.ToString(), style: itemStyle)
)
)
);
if (!isDisabled)
{
yearItem = new InkWell(
key: new ValueKey <int>(year),
onTap: () => {
widget.onChanged(
new DateTime(
year,
widget.initialDate.Month,
widget.initialDate.Day
)
);
},
child: yearItem
);
}
return(yearItem);
}
public override Widget build(BuildContext context)
{
D.assert(WidgetsD.debugCheckHasDirectionality(context));
D.assert(material_.debugCheckHasMaterialLocalizations(context));
D.assert(material_.debugCheckHasMaterialLocalizations(context));
ThemeData theme = Theme.of(context);
List <Widget> children = new List <Widget> {
};
if (widget.accountName != null)
{
Widget accountNameLine = new LayoutId(
id: _AccountDetailsLayout.accountName,
child: new Padding(
padding: EdgeInsets.symmetric(vertical: 2.0f),
child: new DefaultTextStyle(
style: theme.primaryTextTheme.bodyText1,
overflow: TextOverflow.ellipsis,
child: widget.accountName
)
)
);
children.Add(accountNameLine);
}
if (widget.accountEmail != null)
{
Widget accountEmailLine = new LayoutId(
id: _AccountDetailsLayout.accountEmail,
child: new Padding(
padding: EdgeInsets.symmetric(vertical: 2.0f),
child: new DefaultTextStyle(
style: theme.primaryTextTheme.bodyText2,
overflow: TextOverflow.ellipsis,
child: widget.accountEmail
)
)
);
children.Add(accountEmailLine);
}
if (widget.onTap != null)
{
Widget dropDownIcon = new LayoutId(
id: _AccountDetailsLayout.dropdownIcon,
child: new SizedBox(
height: UserAccountsDrawerHeaderUtils._kAccountDetailsHeight,
width: UserAccountsDrawerHeaderUtils._kAccountDetailsHeight,
child: new Center(
child: Transform.rotate(
angle: _animation.value * Mathf.PI,
child: new Icon(
Icons.arrow_drop_down,
color: widget.arrowColor
)
)
)
)
);
children.Add(dropDownIcon);
}
Widget accountDetails = new CustomMultiChildLayout(
layoutDelegate: new _AccountDetailsLayout(
Directionality.of(context)),
children: children
);
if (widget.onTap != null)
{
accountDetails = new InkWell(
onTap: widget.onTap == null ? (GestureTapCallback)null : () => { widget.onTap(); },
child: accountDetails
);
}
return(new SizedBox(
height: UserAccountsDrawerHeaderUtils._kAccountDetailsHeight,
child: accountDetails
));
}
Widget _buildDataCell(
BuildContext context,
EdgeInsetsGeometry padding,
Widget label,
bool numeric,
bool placeholder,
bool showEditIcon,
VoidCallback onTap,
VoidCallback onSelectChanged
)
{
bool isLightTheme = Theme.of(context).brightness == Brightness.light;
if (showEditIcon)
{
Widget icon = new Icon(Icons.edit, size: 18.0f);
label = new Expanded(child: label);
label = new Row(
textDirection: numeric ? TextDirection.rtl : (TextDirection?)null,
children: new List <Widget> {
label, icon
}
);
}
label = new Container(
padding: padding,
height: dataRowHeight,
alignment: numeric ? Alignment.centerRight : (AlignmentGeometry)AlignmentDirectional.centerStart,
child: new DefaultTextStyle(
style: new TextStyle(
// TODO(ianh): font family should be Roboto; see https://github.com/flutter/flutter/issues/3116
fontSize: 13.0f,
color: isLightTheme
? (placeholder ? Colors.black38 : Colors.black87)
: (placeholder ? Colors.white38 : Colors.white70)
),
child: IconTheme.merge(
data: new IconThemeData(
color: isLightTheme ? Colors.black54 : Colors.white70
),
child: new DropdownButtonHideUnderline(child: label)
)
)
);
if (onTap != null)
{
label = new InkWell(
onTap: () => onTap(),
child: label
);
}
else if (onSelectChanged != null)
{
label = new TableRowInkWell(
onTap: () => onSelectChanged(),
child: label
);
}
return(label);
}
Widget _buildHeadingCell(
BuildContext context = null,
EdgeInsetsGeometry padding = null,
Widget label = null,
string tooltip = null,
bool?numeric = null,
VoidCallback onSort = null,
bool?sorted = null,
bool?ascending = null
)
{
List <Widget> arrowWithPadding()
{
return(onSort == null
? new List <Widget>()
: new List <
Widget>()
{
new _SortArrow(
visible: sorted,
down: sorted ?? false ? ascending : null,
duration: _sortArrowAnimationDuration
),
new SizedBox(width: _sortArrowPadding)
});
}
var rowChild = new List <Widget>();
rowChild.Add(label);
rowChild.AddRange(arrowWithPadding());
label = new Row(
textDirection: numeric ?? false ? TextDirection.rtl : (TextDirection?)null,
children: rowChild
);
label = new Container(
padding: padding,
height: headingRowHeight,
alignment: numeric ?? false
? Alignment.centerRight
: (AlignmentGeometry)AlignmentDirectional.centerStart,
child: new AnimatedDefaultTextStyle(
style: new TextStyle(
fontWeight: FontWeight.w500,
fontSize: _headingFontSize,
height: Mathf.Min(1.0f, headingRowHeight / _headingFontSize),
color: (Theme.of(context).brightness == Brightness.light)
? ((onSort != null && (sorted ?? false)) ? Colors.black87 : Colors.black54)
: ((onSort != null && (sorted ?? false)) ? Colors.white : Colors.white70)
),
softWrap: false,
duration: _sortArrowAnimationDuration,
child: label
)
);
if (tooltip != null)
{
label = new Tooltip(
message: tooltip,
child: label
);
}
// TODO(dkwingsmt): Only wrap Inkwell if onSort != null. Blocked by
// https://github.com/flutter/flutter/issues/51152
label = new InkWell(
onTap: () => onSort?.Invoke(),
child: label
);
return(label);
}
public override Widget build(BuildContext context)
{
D.assert(MaterialD.debugCheckHasMaterialLocalizations(context));
if (this._controller.length == 0)
{
return(new Container(
height: TabsUtils._kTabHeight + this.widget.indicatorWeight
));
}
List <Widget> wrappedTabs = new List <Widget>();
for (int i = 0; i < this.widget.tabs.Count; i++)
{
wrappedTabs.Add(new Center(
heightFactor: 1.0f,
child: new Padding(
padding: this.widget.labelPadding ?? Constants.kTabLabelPadding,
child: new KeyedSubtree(
key: this._tabKeys[i],
child: this.widget.tabs[i]
)
)
)
);
}
if (this._controller != null)
{
int previousIndex = this._controller.previousIndex;
if (this._controller.indexIsChanging)
{
D.assert(this._currentIndex != previousIndex);
Animation <float> animation = new _ChangeAnimation(this._controller);
wrappedTabs[this._currentIndex] =
this._buildStyledTab(wrappedTabs[this._currentIndex], true, animation);
wrappedTabs[previousIndex] = this._buildStyledTab(wrappedTabs[previousIndex], false, animation);
}
else
{
int tabIndex = this._currentIndex;
Animation <float> centerAnimation = new _DragAnimation(this._controller, tabIndex);
wrappedTabs[tabIndex] = this._buildStyledTab(wrappedTabs[tabIndex], true, centerAnimation);
if (this._currentIndex > 0)
{
int previousTabIndex = this._currentIndex - 1;
Animation <float> previousAnimation =
new ReverseAnimation(new _DragAnimation(this._controller, previousTabIndex));
wrappedTabs[previousTabIndex] =
this._buildStyledTab(wrappedTabs[previousTabIndex], false, previousAnimation);
}
if (this._currentIndex < this.widget.tabs.Count - 1)
{
int nextTabIndex = this._currentIndex + 1;
Animation <float> nextAnimation =
new ReverseAnimation(new _DragAnimation(this._controller, nextTabIndex));
wrappedTabs[nextTabIndex] =
this._buildStyledTab(wrappedTabs[nextTabIndex], false, nextAnimation);
}
}
}
int tabCount = this.widget.tabs.Count;
for (int index = 0; index < tabCount; index++)
{
int tabIndex = index;
wrappedTabs[index] = new InkWell(
onTap: () => { this._handleTap(tabIndex); },
child: new Padding(
padding: EdgeInsets.only(bottom: this.widget.indicatorWeight),
child: wrappedTabs[index]
)
);
if (!this.widget.isScrollable)
{
wrappedTabs[index] = new Expanded(
child: wrappedTabs[index]);
}
}
Widget tabBar = new CustomPaint(
painter: this._indicatorPainter,
child: new _TabStyle(
animation: Animations.kAlwaysDismissedAnimation,
selected: false,
labelColor: this.widget.labelColor,
unselectedLabelColor: this.widget.unselectedLabelColor,
labelStyle: this.widget.labelStyle,
unselectedLabelStyle: this.widget.unselectedLabelStyle,
child: new _TabLabelBar(
onPerformLayout: this._saveTabOffsets,
children: wrappedTabs
)
)
);
if (this.widget.isScrollable)
{
this._scrollController = this._scrollController ?? new _TabBarScrollController(this);
tabBar = new SingleChildScrollView(
scrollDirection: Axis.horizontal,
controller: this._scrollController,
child: tabBar);
}
return(tabBar);
}
public override Widget build(BuildContext context)
{
List <MergeableMaterialItem> items = new List <MergeableMaterialItem>();
for (int i = 0; i < widget.children.Count; i++)
{
int expandIndex = i;
if (_isChildExpanded(expandIndex) && expandIndex != 0 && !_isChildExpanded(expandIndex - 1))
{
items.Add(new MaterialGap(
key: new _SaltedKey <BuildContext, int>(context, expandIndex * 2 - 1)));
}
ExpansionPanel child = widget.children[expandIndex];
Widget headerWidget = child.headerBuilder(
context,
_isChildExpanded(expandIndex)
);
Widget expandIconContainer = new Container(
margin: EdgeInsetsDirectional.only(end: 8.0f),
child: new ExpandIcon(
isExpanded: _isChildExpanded(expandIndex),
padding: EdgeInsets.all(16.0f),
onPressed: !child.canTapOnHeader
? (bool isExpanded) => _handlePressed(isExpanded, expandIndex)
: (ValueChanged <bool>)null
)
);
Widget header = new Row(
children: new List <Widget> {
new Expanded(
child: new AnimatedContainer(
duration: widget.animationDuration,
curve: Curves.fastOutSlowIn,
margin: _isChildExpanded(expandIndex) ? widget.expandedHeaderPadding : EdgeInsets.zero,
child: new ConstrainedBox(
constraints: new BoxConstraints(
minHeight: material_._kPanelHeaderCollapsedHeight),
child: headerWidget
)
)
),
expandIconContainer,
}
);
if (child.canTapOnHeader)
{
header = new InkWell(
onTap: () => _handlePressed(_isChildExpanded(expandIndex), expandIndex),
child: header
);
}
items.Add(new MaterialSlice(
key: new _SaltedKey <BuildContext, int>(context, expandIndex * 2),
child: new Column(
children: new List <Widget> {
header,
new AnimatedCrossFade(
firstChild: new Container(height: 0.0f),
secondChild: child.body,
firstCurve: new Interval(0.0f, 0.6f, curve: Curves.fastOutSlowIn),
secondCurve: new Interval(0.4f, 1.0f, curve: Curves.fastOutSlowIn),
sizeCurve: Curves.fastOutSlowIn,
crossFadeState: _isChildExpanded(expandIndex)
? CrossFadeState.showSecond
: CrossFadeState.showFirst,
duration: widget.animationDuration
)
}
)
)
);
if (_isChildExpanded(expandIndex) && expandIndex != widget.children.Count - 1)
{
items.Add(new MaterialGap(
key: new _SaltedKey <BuildContext, int>(context, expandIndex * 2 + 1)));
}
}
return(new MergeableMaterial(
hasDividers: true,
children: items));
}
