BorderRadius _getClipBorderRadius(
int index,
int length,
TextDirection textDirection,
ToggleButtonsThemeData toggleButtonsTheme
)
{
BorderRadius resultingBorderRadius = borderRadius
?? toggleButtonsTheme.borderRadius
?? BorderRadius.zero;
float resultingBorderWidth = borderWidth
?? toggleButtonsTheme.borderWidth
?? _defaultBorderWidth;
if (_isFirstIndex(index, length, textDirection))
{
return(BorderRadius.only(
topLeft: resultingBorderRadius.topLeft - Radius.circular(resultingBorderWidth / 2.0f),
bottomLeft: resultingBorderRadius.bottomLeft - Radius.circular(resultingBorderWidth / 2.0f)
));
}
else if (_isLastIndex(index, length, textDirection))
{
return(BorderRadius.only(
topRight: resultingBorderRadius.topRight - Radius.circular(resultingBorderWidth / 2.0f),
bottomRight: resultingBorderRadius.bottomRight - Radius.circular(resultingBorderWidth / 2.0f)
));
}
return(BorderRadius.zero);
}
BorderRadius _getEdgeBorderRadius(
int index,
int length,
TextDirection textDirection,
ToggleButtonsThemeData toggleButtonsTheme
)
{
BorderRadius resultingBorderRadius = borderRadius
?? toggleButtonsTheme.borderRadius
?? BorderRadius.zero;
if (_isFirstIndex(index, length, textDirection))
{
return(BorderRadius.only(
topLeft: resultingBorderRadius.topLeft,
bottomLeft: resultingBorderRadius.bottomLeft
));
}
else if (_isLastIndex(index, length, textDirection))
{
return(BorderRadius.only(
topRight: resultingBorderRadius.topRight,
bottomRight: resultingBorderRadius.bottomRight
));
}
return(BorderRadius.zero);
}
public ToggleButtonsTheme(
Key key = null,
ToggleButtonsThemeData data = null,
Widget child = null
) : base(key: key, child: child)
{
D.assert(data != null);
this.data = data;
}
BorderSide _getTrailingBorderSide(
int index,
ThemeData theme,
ToggleButtonsThemeData toggleButtonsTheme
)
{
if (!renderBorder)
{
return(BorderSide.none);
}
if (index != children.Count - 1)
{
return(null);
}
float resultingBorderWidth = borderWidth
?? toggleButtonsTheme.borderWidth
?? _defaultBorderWidth;
if (onPressed != null && (isSelected[index]))
{
return(new BorderSide(
color: selectedBorderColor
?? toggleButtonsTheme.selectedBorderColor
?? theme.colorScheme.onSurface.withOpacity(0.12f),
width: resultingBorderWidth
));
}
else if (onPressed != null && !isSelected[index])
{
return(new BorderSide(
color: borderColor
?? toggleButtonsTheme.borderColor
?? theme.colorScheme.onSurface.withOpacity(0.12f),
width: resultingBorderWidth
));
}
else
{
return(new BorderSide(
color: disabledBorderColor
?? toggleButtonsTheme.disabledBorderColor
?? theme.colorScheme.onSurface.withOpacity(0.12f),
width: resultingBorderWidth
));
}
}
public override Widget build(BuildContext context)
{
D.assert(material_.debugCheckHasMaterial(context));
Color currentColor = null;
Color currentFillColor = null;
Color currentFocusColor = null;
Color currentHoverColor = null;
Color currentSplashColor = null;
ThemeData theme = Theme.of(context);
ToggleButtonsThemeData toggleButtonsTheme = ToggleButtonsTheme.of(context);
if (onPressed != null && selected)
{
currentColor = selectedColor
?? toggleButtonsTheme.selectedColor
?? theme.colorScheme.primary;
currentFillColor = fillColor
?? theme.colorScheme.primary.withOpacity(0.12f);
currentFocusColor = focusColor
?? toggleButtonsTheme.focusColor
?? theme.colorScheme.primary.withOpacity(0.12f);
currentHoverColor = hoverColor
?? toggleButtonsTheme.hoverColor
?? theme.colorScheme.primary.withOpacity(0.04f);
currentSplashColor = splashColor
?? toggleButtonsTheme.splashColor
?? theme.colorScheme.primary.withOpacity(0.16f);
}
else if (onPressed != null && !selected)
{
currentColor = color
?? toggleButtonsTheme.color
?? theme.colorScheme.onSurface.withOpacity(0.87f);
currentFillColor = theme.colorScheme.surface.withOpacity(0.0f);
currentFocusColor = focusColor
?? toggleButtonsTheme.focusColor
?? theme.colorScheme.onSurface.withOpacity(0.12f);
currentHoverColor = hoverColor
?? toggleButtonsTheme.hoverColor
?? theme.colorScheme.onSurface.withOpacity(0.04f);
currentSplashColor = splashColor
?? toggleButtonsTheme.splashColor
?? theme.colorScheme.onSurface.withOpacity(0.16f);
}
else
{
currentColor = disabledColor
?? toggleButtonsTheme.disabledColor
?? theme.colorScheme.onSurface.withOpacity(0.38f);
currentFillColor = theme.colorScheme.surface.withOpacity(0.0f);
}
TextStyle currentTextStyle = textStyle ?? toggleButtonsTheme.textStyle ?? theme.textTheme.bodyText2;
BoxConstraints currentConstraints = constraints ?? toggleButtonsTheme.constraints ??
new BoxConstraints(minWidth: material_.kMinInteractiveDimension,
minHeight: material_.kMinInteractiveDimension);
Widget result = new ClipRRect(
borderRadius: clipRadius,
child: new RawMaterialButton(
textStyle: currentTextStyle.copyWith(
color: currentColor
),
constraints: currentConstraints,
elevation: 0.0f,
highlightElevation: 0.0f,
fillColor: currentFillColor,
focusColor: currentFocusColor,
highlightColor: highlightColor
?? theme.colorScheme.surface.withOpacity(0.0f),
hoverColor: currentHoverColor,
splashColor: currentSplashColor,
focusNode: focusNode,
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
onPressed: onPressed,
child: child
)
);
return(new _SelectToggleButton(
key: key,
leadingBorderSide: leadingBorderSide,
horizontalBorderSide: horizontalBorderSide,
trailingBorderSide: trailingBorderSide,
borderRadius: borderRadius,
isFirstButton: isFirstButton,
isLastButton: isLastButton,
child: result
));
}
public override Widget build(BuildContext context)
{
D.assert(
!isSelected.Any((bool val) => val == null),
() => "All elements of isSelected must be non-null.\n" +
"The current list of isSelected values is as follows:\n" +
$"{isSelected}"
);
D.assert(
focusNodes == null || !focusNodes.Any((FocusNode val) => val == null),
() => "All elements of focusNodes must be non-null.\n" +
"The current list of focus node values is as follows:\n" +
$"{focusNodes}"
);
D.assert(
() => {
if (focusNodes != null)
{
return(focusNodes.Count == children.Count);
}
return(true);
},
() => "focusNodes.length must match children.length.\n" +
$"There are {focusNodes.Count} focus nodes, while " +
$"there are {children.Count} children."
);
ThemeData theme = Theme.of(context);
ToggleButtonsThemeData toggleButtonsTheme = ToggleButtonsTheme.of(context);
TextDirection textDirection = Directionality.of(context);
var childrenList = new List <Widget>(children.Count);
for (var i = 0; i < children.Count; i++)
{
var index = i;
BorderRadius edgeBorderRadius =
_getEdgeBorderRadius(index, children.Count, textDirection, toggleButtonsTheme);
BorderRadius clipBorderRadius =
_getClipBorderRadius(index, children.Count, textDirection, toggleButtonsTheme);
BorderSide leadingBorderSide = _getLeadingBorderSide(index, theme, toggleButtonsTheme);
BorderSide horizontalBorderSide = _getHorizontalBorderSide(index, theme, toggleButtonsTheme);
BorderSide trailingBorderSide = _getTrailingBorderSide(index, theme, toggleButtonsTheme);
childrenList.Add(new _ToggleButton(
selected: isSelected[index],
textStyle: textStyle,
constraints: constraints,
color: color,
selectedColor: selectedColor,
disabledColor: disabledColor,
fillColor: fillColor ?? toggleButtonsTheme.fillColor,
focusColor: focusColor ?? toggleButtonsTheme.focusColor,
highlightColor: highlightColor ?? toggleButtonsTheme.highlightColor,
hoverColor: hoverColor ?? toggleButtonsTheme.hoverColor,
splashColor: splashColor ?? toggleButtonsTheme.splashColor,
focusNode: focusNodes != null ? focusNodes[index] : null,
onPressed: onPressed != null
? () => { onPressed(index); }
: (VoidCallback)null,
leadingBorderSide: leadingBorderSide,
horizontalBorderSide: horizontalBorderSide,
trailingBorderSide: trailingBorderSide,
borderRadius: edgeBorderRadius,
clipRadius: clipBorderRadius,
isFirstButton: index == 0,
isLastButton: index == children.Count - 1,
child: children[index]
));
}
return(new IntrinsicHeight(
child: new Row(
crossAxisAlignment: CrossAxisAlignment.stretch,
mainAxisSize: MainAxisSize.min,
children: childrenList)
));
}
