public void Inflate(ItemsEdge itemEdge, IItem item)
{
IWidget widget = _itemWidgetsPool.GetWidget(item);
widget.Fill(item);
RectTransform widgetRectTransform = widget.rectTransform;
SetPivotAndAnchors(widgetRectTransform);
widget.RecalcRect();
// Change edge last position
WidgetsAlignment itemWidgetEdge = GetItemWidgetEdge(itemEdge);
float inflationSign = WidgetsAlignmentDesc.HeadInflationSigns[itemWidgetEdge];
float nextPositionFloat = _edgesLastPositions[itemWidgetEdge] + _spacing * inflationSign;
Vector2 axisMask = AxisMaskDesc.AxisMasks[_axis];
Vector2 nextWidgetPosition = nextPositionFloat * axisMask;
Vector2 newEdgesLastPositions = nextWidgetPosition + widgetRectTransform.rect.size * axisMask * inflationSign;
_edgesLastPositions[itemWidgetEdge] = Helpers.GetVectorComponent(newEdgesLastPositions, _axis);
switch (itemEdge)
{
case ItemsEdge.Head:
_widgets.Insert(0, widget);
widgetRectTransform.anchoredPosition = newEdgesLastPositions;
break;
case ItemsEdge.Tail:
_widgets.Add(widget);
widgetRectTransform.anchoredPosition = nextWidgetPosition;
break;
}
}
public float GetEdgeDelta(ItemsEdge itemEdge, Rect viewportWorldRect)
{
WidgetsAlignment itemWidgetEdge = GetItemWidgetEdge(itemEdge);
float viewportEdgePosition = WidgetsAlignmentDesc.RectPositions[itemWidgetEdge](viewportWorldRect);
Vector2 startPos = _node.TransformPoint(_edgesLastPositions[itemWidgetEdge] * AxisMaskDesc.AxisMasks[_axis]);
float inflationSign = WidgetsAlignmentDesc.HeadInflationSigns[itemWidgetEdge];
var res = (viewportEdgePosition - Helpers.GetVectorComponent(startPos, _axis)) * inflationSign;
return(res > 0f ? res * inflationSign / Helpers.GetVectorComponent(_node.lossyScale, _axis) : 0f);
}
public bool NeedInflate(ItemsEdge itemEdge, Rect viewportWorldRect)
{
WidgetsAlignment itemWidgetEdge = GetItemWidgetEdge(itemEdge);
float viewportEdgePosition = WidgetsAlignmentDesc.RectPositions[itemWidgetEdge](viewportWorldRect);
float inflationSign = WidgetsAlignmentDesc.HeadInflationSigns[itemWidgetEdge];
float nextPositionFloat = _edgesLastPositions[itemWidgetEdge] + _spacing * inflationSign;
Vector2 startPos = _node.TransformPoint(nextPositionFloat * AxisMaskDesc.AxisMasks[_axis]);
float widgetEdgePosition = Helpers.GetVectorComponent(startPos, _axis);
return(WidgetsAlignmentDesc.ViewportHasSpace[itemWidgetEdge](viewportEdgePosition, widgetEdgePosition));
}
public WidgetsViewport(RectTransform node, IWidgetsProvider widgetsProvider, WidgetsAlignment alignment, float spacing)
{
_node = node;
_itemWidgetsPool = new WidgetsPool(widgetsProvider, _node);
_widgets = new List <IWidget>();
_alignment = alignment;
_spacing = spacing;
_axis = AxisMaskDesc.WidgetsAlignmentAxis[_alignment];
_edgesLastPositions = new Dictionary <WidgetsAlignment, float>();
SetPivotAndAnchors(_node);
Reset();
}
public void Deflate(ItemsEdge itemEdge)
{
IWidget widget = GetEdgeWidget(itemEdge);
_itemWidgetsPool.ReturnWidget(widget);
_widgets.Remove(widget);
// Change edge last position
WidgetsAlignment itemWidgetEdge = GetItemWidgetEdge(itemEdge);
_edgesLastPositions[itemWidgetEdge] -= (Helpers.GetVectorComponent(widget.rectTransform.rect.size, _axis) +
_spacing) * WidgetsAlignmentDesc.HeadInflationSigns[itemWidgetEdge];
}
public Vector2 GetRectEdge(Rect rect, WidgetsAlignment alignment)
{
return(WidgetsAlignmentDesc.RectPositions[alignment](rect) * AxisMaskDesc.AxisMasks[_axis]);
}
public float GetInflationSign(ItemsEdge itemsEdge)
{
WidgetsAlignment alignment = GetItemWidgetEdge(itemsEdge);
return(WidgetsAlignmentDesc.HeadInflationSigns[alignment]);
}
