protected override Widget Build(BuildContext context)
{
Widget MakeContainer(int w, int h, int n) => new Container(
size: WidgetSize.Fixed(w, h),
backgroundColor: Color.Lerp(Color.blue, Color.green, n / 15f)
);
return(new Container(
backgroundColor: Color.gray,
child: new ScrollList(
crossAxisAlignment: CrossAxisAlignment.Center,
mainAxisAlignment: MainAxisAlignment.Center,
children: new List <Widget>
{
MakeContainer(100, 100, 1),
MakeContainer(120, 110, 2),
MakeContainer(110, 120, 3),
MakeContainer(100, 140, 4),
MakeContainer(150, 110, 5),
MakeContainer(110, 100, 6),
MakeContainer(100, 100, 7),
MakeContainer(120, 110, 8),
MakeContainer(100, 100, 9),
MakeContainer(100, 100, 10),
}
)
));
}
public override WidgetSize CalculateSize()
{
var size = base.CalculateSize();
if (_full.Value)
{
size = new WidgetSize(250, 250);
}
return(size);
}
private WidgetSize CalculateInnerSize()
{
var size = default(WidgetSize?);
foreach (var child in Children)
{
size = size.HasValue ? WidgetSize.StackX(size.Value, child.Size) : child.Size;
}
return(size.GetValueOrDefault(WidgetSize.Zero));
}
private WidgetSize CalculateInnerSize()
{
var size = WidgetSize.Zero;
foreach (var child in Children)
{
size = WidgetSize.StackY(size, child.Size);
}
return(size);
}
public virtual WidgetSize GetPreferredWidthForHeight(double height)
{
try {
gettingPreferredSize = true;
var s = new WidgetSize(Widget.SizeRequest().Width);
if (minSizeSet && Frontend.MinWidth != -1)
{
s.MinSize = Frontend.MinWidth;
}
return(s);
} finally {
gettingPreferredSize = false;
}
}
public virtual WidgetSize GetPreferredHeightForWidth(double width)
{
try {
gettingPreferredSize = true;
var s = new WidgetSize(Widget.SizeRequest().Height);
if (minSizeSet && Frontend.MinHeight != -1)
{
s.MinSize = Frontend.MinHeight;
}
return(s);
} finally {
gettingPreferredSize = false;
}
}
protected override Widget Build(BuildContext context)
{
return(new Container(
size: WidgetSize.Stretched,
backgroundColor: Color.white,
child: new CompositeTransition(
opacity: _opacity,
position: _position,
rotation: _rotation,
child: new Container(
size: WidgetSize.Fixed(300, 200),
backgroundColor: Color.black
)
)
));
}
private WidgetSize CalculateInnerSize()
{
var width = 0f;
var height = 0f;
var lineWidth = 0.0f;
var lineHeight = 0.0f;
var lineChildNum = 0;
var maxLineWidth = Widget.MaxCrossAxisExtent;
var maxLineChildNum = Widget.MaxCrossAxisCount;
foreach (var child in Children)
{
var childSize = child.Size;
if (float.IsInfinity(childSize.MaxWidth) || float.IsInfinity(childSize.MaxHeight))
{
continue;
}
if (lineChildNum + 1 <= maxLineChildNum &&
lineWidth + childSize.MaxWidth <= maxLineWidth)
{
lineChildNum++;
lineWidth += childSize.MaxWidth;
lineHeight = Math.Max(lineHeight, childSize.MaxHeight);
}
else
{
width = Math.Max(width, lineWidth);
height += lineHeight;
lineChildNum = 1;
lineWidth = childSize.MaxWidth;
lineHeight = childSize.MaxHeight;
}
}
width = Math.Max(width, lineWidth);
height += lineHeight;
width = Math.Min(width, MaxCrossAxisExtent);
return(WidgetSize.Fixed(width, height));
}
public virtual WidgetSize GetPreferredWidthForHeight(double height)
{
bool oldFlag = doubleSizeRequestCheckSupported;
try {
gettingPreferredSize = true;
doubleSizeRequestCheckSupported = false;
var s = new WidgetSize(Widget.SizeRequest().Width);
if (minSizeSet && Frontend.MinWidth != -1)
{
s.MinSize = Frontend.MinWidth;
}
return(s);
} finally {
gettingPreferredSize = false;
doubleSizeRequestCheckSupported = oldFlag;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="WidgetBase"/> class.
/// </summary>
/// <param name="widgetSize">Size of the widget.</param>
protected WidgetBase(WidgetSize widgetSize)
{
WidgetSize = widgetSize;
}
private WidgetSize CalculateSizeInternal()
{
return(WidgetSize.Lerp(FirstChild.Size, SecondChild.Size, _controller.Value));
}
protected override void Render()
{
var children = State.Children;
var mainAxis = State.MainAxisAlignment;
var crossAxis = State.CrossAxisAlignment;
var listSize = State.InnerSize;
var alignX = crossAxis == CrossAxisAlignment.Start ? Alignment.TopLeft.X
: crossAxis == CrossAxisAlignment.End ? Alignment.TopRight.X
: Alignment.Center.X;
var childAlignment = new Alignment(alignX, Alignment.TopCenter.Y);
var corner = childAlignment.WithTop();
var cornerPosition = new Vector2(0, 0);
// content root
{
var contentPivotX = crossAxis == CrossAxisAlignment.Start ? 0.0f
: crossAxis == CrossAxisAlignment.End ? 1.0f
: 0.5f;
var contentPivotY = mainAxis == MainAxisAlignment.Start ? 1.0f
: mainAxis == MainAxisAlignment.End ? 0.0f
: 0.5f;
_contentRoot.pivot = new Vector2(contentPivotX, contentPivotY);
LayoutData contentLayout;
contentLayout.Size = WidgetSize.FixedHeight(listSize.Height);
contentLayout.Alignment = childAlignment;
contentLayout.Corner = childAlignment;
contentLayout.CornerPosition = Vector2.zero;
ViewLayoutUtility.SetLayout(_contentRoot, contentLayout);
}
using (var render = _mapper.CreateRender())
{
foreach (var child in children)
{
var childSize = child.Size;
if (childSize.IsHeightStretched)
{
Debug.LogError("Cannot render vertically stretched widgets inside ScrollList.\n" +
$"Try to wrap '{child.GetType().Name}' into another widget with fixed height");
continue;
}
var childView = render.RenderItem(child);
LayoutData layout;
layout.Size = childSize;
layout.Alignment = childAlignment;
layout.Corner = corner;
layout.CornerPosition = cornerPosition;
ViewLayoutUtility.SetLayout(childView.rectTransform, layout);
cornerPosition += new Vector2(0, childSize.Height);
}
}
}
public WidgetModel MakeWidget(WidgetShape widgetShape, WidgetColor widgetColor, WidgetSize widgetSize)
{
return(new WidgetBModel()
{
ID = Guid.NewGuid(),
WidgetShape = widgetShape,
WidgetColor = widgetColor,
WidgetSize = widgetSize,
AddtionalInformation = "This is Widgit B",
Connectors = new List <WidgetConnectorModel>()
});
}
public override WidgetSize CalculateSize() => WidgetSize.Fixed(0, 0);
public WidgetModel MakeWidget(WidgetShape widgetShape, WidgetColor widgetColor, WidgetSize widgetSize)
{
return(new WidgetAModel()
{
ID = Guid.NewGuid(),
WidgetShape = widgetShape,
WidgetColor = widgetColor,
WidgetSize = widgetSize,
Connectors = new List <WidgetConnectorModel>()
});
}
public UniMobText(WidgetSize size)
{
Size = size;
}
