public bool Equals(AppBarTheme other)
{
return(other.brightness == this.brightness &&
other.color == this.color &&
other.elevation == this.elevation &&
other.iconTheme == this.iconTheme &&
other.textTheme == this.textTheme);
}
public bool Equals(AppBarTheme other)
{
return(other.brightness == brightness &&
other.color == color &&
Equals(other.elevation, elevation) &&
other.iconTheme == iconTheme &&
other.actionsIconTheme == actionsIconTheme &&
other.textTheme == textTheme);
}
public static AppBarTheme lerp(AppBarTheme a, AppBarTheme b, float t)
{
return(new AppBarTheme(
brightness: t < 0.5f ? a?.brightness : b?.brightness,
color: Color.lerp(a?.color, b?.color, t),
elevation: MathUtils.lerpFloat(a?.elevation ?? 0.0f, b?.elevation ?? 0.0f, t),
iconTheme: IconThemeData.lerp(a?.iconTheme, b?.iconTheme, t),
textTheme: TextTheme.lerp(a?.textTheme, b?.textTheme, t)
));
}
public override Widget build(BuildContext context)
{
D.assert(material_.debugCheckHasMaterialLocalizations(context));
ThemeData theme = Theme.of(context);
AppBarTheme appBarTheme = AppBarTheme.of(context);
ScaffoldState scaffold = Scaffold.of(context, nullOk: true);
ModalRoute parentRoute = ModalRoute.of(context);
bool hasDrawer = scaffold?.hasDrawer ?? false;
bool hasEndDrawer = scaffold?.hasEndDrawer ?? false;
bool canPop = parentRoute?.canPop ?? false;
bool useCloseButton = parentRoute is PageRoute && ((PageRoute)parentRoute).fullscreenDialog;
IconThemeData overallIconTheme = widget.iconTheme
?? appBarTheme.iconTheme
?? theme.primaryIconTheme;
IconThemeData actionsIconTheme = widget.actionsIconTheme
?? appBarTheme.actionsIconTheme
?? overallIconTheme;
TextStyle centerStyle = widget.textTheme?.headline6
?? appBarTheme.textTheme?.headline6
?? theme.primaryTextTheme.headline6;
TextStyle sideStyle = widget.textTheme?.bodyText2
?? appBarTheme.textTheme?.bodyText2
?? theme.primaryTextTheme.bodyText2;
if (widget.toolbarOpacity != 1.0f)
{
float opacity =
new Interval(0.25f, 1.0f, curve: Curves.fastOutSlowIn).transform(widget.toolbarOpacity);
if (centerStyle?.color != null)
{
centerStyle = centerStyle.copyWith(color: centerStyle.color.withOpacity(opacity));
}
if (sideStyle?.color != null)
{
sideStyle = sideStyle.copyWith(color: sideStyle.color.withOpacity(opacity));
}
overallIconTheme = overallIconTheme.copyWith(
opacity: opacity * (overallIconTheme.opacity ?? 1.0f)
);
actionsIconTheme = actionsIconTheme.copyWith(
opacity: opacity * (actionsIconTheme.opacity ?? 1.0f)
);
}
Widget leading = widget.leading;
if (leading == null && widget.automaticallyImplyLeading)
{
if (hasDrawer)
{
leading = new IconButton(
icon: new Icon(Icons.menu),
onPressed: _handleDrawerButton,
tooltip: MaterialLocalizations.of(context).openAppDrawerTooltip);
}
else
{
if (canPop)
{
leading = useCloseButton ? (Widget) new CloseButton() : new BackButton();
}
}
}
if (leading != null)
{
leading = new ConstrainedBox(
constraints: BoxConstraints.tightFor(width: AppBarUtils._kLeadingWidth),
child: leading);
}
Widget title = widget.title;
if (title != null)
{
bool namesRoute;
switch (theme.platform)
{
case RuntimePlatform.Android:
case RuntimePlatform.LinuxEditor:
case RuntimePlatform.LinuxPlayer:
case RuntimePlatform.WindowsEditor:
case RuntimePlatform.WindowsPlayer:
namesRoute = true;
break;
case RuntimePlatform.IPhonePlayer:
case RuntimePlatform.OSXEditor:
case RuntimePlatform.OSXPlayer:
break;
default:
break;
}
title = new _AppBarTitleBox(child: title);
title = new DefaultTextStyle(
style: centerStyle,
softWrap: false,
overflow: TextOverflow.ellipsis,
child: title
);
}
Widget actions = null;
if (widget.actions != null && widget.actions.isNotEmpty())
{
actions = new Row(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: widget.actions);
}
else if (hasEndDrawer)
{
actions = new IconButton(
icon: new Icon(Icons.menu),
onPressed: _handleDrawerButtonEnd,
tooltip: MaterialLocalizations.of(context).openAppDrawerTooltip);
}
if (actions != null)
{
actions = IconTheme.merge(
data: actionsIconTheme,
child: actions
);
}
Widget toolbar = new NavigationToolbar(
leading: leading,
middle: title,
trailing: actions,
centerMiddle: widget._getEffectiveCenterTitle(theme).Value,
middleSpacing: widget.titleSpacing);
Widget appBar = new ClipRect(
child: new CustomSingleChildLayout(
layoutDelegate: new _ToolbarContainerLayout(),
child: IconTheme.merge(
data: overallIconTheme,
child: new DefaultTextStyle(
style: sideStyle,
child: toolbar)
)
)
);
if (widget.bottom != null)
{
appBar = new Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: new List <Widget> {
new Flexible(
child: new ConstrainedBox(
constraints: new BoxConstraints(maxHeight: material_.kToolbarHeight),
child: appBar
)
),
foundation_.FloatEqual(widget.bottomOpacity, 1.0f)
? (Widget)widget.bottom
: new Opacity(
opacity: new Interval(0.25f, 1.0f, curve: Curves.fastOutSlowIn).transform(widget
.bottomOpacity),
child: widget.bottom
)
}
);
}
if (widget.primary)
{
appBar = new SafeArea(
bottom: false,
top: true,
child: appBar);
}
appBar = new Align(
alignment: Alignment.topCenter,
child: appBar);
if (widget.flexibleSpace != null)
{
appBar = new Stack(
fit: StackFit.passthrough,
children: new List <Widget> {
widget.flexibleSpace,
appBar
}
);
}
Brightness brightness = widget.brightness
?? appBarTheme.brightness
?? theme.primaryColorBrightness;
SystemUiOverlayStyle overlayStyle = brightness == Brightness.dark
? SystemUiOverlayStyle.light
: SystemUiOverlayStyle.dark;
return(new AnnotatedRegion <SystemUiOverlayStyle>(
value: overlayStyle,
child: new Material(
color: widget.backgroundColor
?? appBarTheme.color
?? theme.primaryColor,
elevation: widget.elevation
?? appBarTheme.elevation
?? _defaultElevation,
shape: widget.shape,
child: appBar
)));
}