/// <summary>
/// 强制重新适应 MinSize MaxSize
/// </summary>
public void DoResize()
{
UIAnchor[] thisAnchor = UIAnchorPosUtils.GetUIAnchor(RectTransform);
if (RectTransform.rect.width < MinSize.x && thisAnchor[0] != UIAnchor.Stretch)
{
RectTransform.sizeDelta = new Vector2(MinSize.x, RectTransform.sizeDelta.y);
}
if (RectTransform.rect.height < MinSize.y && thisAnchor[1] != UIAnchor.Stretch)
{
RectTransform.sizeDelta = new Vector2(RectTransform.sizeDelta.x, MinSize.y);
}
if (MaxSize.x > 0 && RectTransform.rect.width > MaxSize.x && thisAnchor[0] != UIAnchor.Stretch)
{
RectTransform.sizeDelta = new Vector2(MaxSize.x, RectTransform.sizeDelta.y);
}
if (MaxSize.y > 0 && RectTransform.rect.height > MaxSize.y && thisAnchor[1] != UIAnchor.Stretch)
{
RectTransform.sizeDelta = new Vector2(RectTransform.sizeDelta.x, MaxSize.y);
}
if (thisAnchor[0] == UIAnchor.Stretch)
{
UIAnchorPosUtils.SetUILeftBottom(RectTransform, layout_marginLeft, UIAnchorPosUtils.GetUIBottom(RectTransform));
UIAnchorPosUtils.SetUIRightTop(RectTransform, layout_marginRight, UIAnchorPosUtils.GetUITop(RectTransform));
}
if (thisAnchor[1] == UIAnchor.Stretch)
{
UIAnchorPosUtils.SetUILeftBottom(RectTransform, UIAnchorPosUtils.GetUILeft(RectTransform), layout_marginBottom);
UIAnchorPosUtils.SetUIRightTop(RectTransform, UIAnchorPosUtils.GetUIRight(RectTransform), layout_marginTop);
}
}
protected override void OnLayout()
{
UIElement e = null;
RectTransform rectTransform = null;
float startVal = 0;
UIAnchor[] thisAnchor = UIAnchorPosUtils.GetUIAnchor(RectTransform);
//需要布局子布局，
for (int i = 0; i < Elements.Count; i++)
{
e = Elements[i];
if (e.Visibility != UIVisibility.Gone)
{
if (e.IsLayout)
{
(e as UILayout).DoLayout();
}
}
}
//计算所有元素布局占用高度
float allLayoutHeight = (Elements.Count - 1) * layoutChildSpacing;
//另外一个轴最高的元素高度
float maxLayoutOtherHeight = 0;
for (int i = 0; i < Elements.Count; i++)
{
e = Elements[i];
if (e.Visibility != UIVisibility.Gone)
{
rectTransform = e.RectTransform;
allLayoutHeight += (layoutDirection == LayoutAxis.Vertical ? rectTransform.rect.height : rectTransform.rect.width);
//计算控件边距
allLayoutHeight += (layoutDirection == LayoutAxis.Vertical ?
(e.Layout_marginTop + e.Layout_marginBottom) : (e.Layout_marginLeft + e.Layout_marginRight));
if (layoutDirection == LayoutAxis.Vertical)
{
if (e.AnchorX == UIAnchor.Stretch)
{
UIAnchorPosUtils.SetUIAnchor(e.RectTransform, UIAnchor.Stretch,
layoutReverse ? UIAnchor.Bottom : UIAnchor.Top);
UIAnchorPosUtils.SetUILeftBottom(e.RectTransform, e.Layout_marginLeft,
UIAnchorPosUtils.GetUIBottom(e.RectTransform));
UIAnchorPosUtils.SetUIRightTop(e.RectTransform, e.Layout_marginRight,
UIAnchorPosUtils.GetUITop(e.RectTransform));
}
else
{
UIAnchorPosUtils.SetUIAnchor(e.RectTransform,
UILayoutUtils.GravityToAnchor(Gravity, RectTransform.Axis.Horizontal),
layoutReverse ? UIAnchor.Bottom : UIAnchor.Top);
e.RectTransform.anchoredPosition = Vector2.zero;
}
UIAnchorPosUtils.SetUIPivot(e.RectTransform,
UILayoutUtils.AnchorToPivot(
layoutReverse ? UIAnchor.Bottom : UIAnchor.Top, RectTransform.Axis.Vertical),
RectTransform.Axis.Vertical);
e.DoResize();
if (e.RectTransform.rect.width > maxLayoutOtherHeight)
{
maxLayoutOtherHeight = e.RectTransform.rect.width;
}
}
else
{
if (e.AnchorY == UIAnchor.Stretch)
{
UIAnchorPosUtils.SetUIAnchor(e.RectTransform,
layoutReverse ? UIAnchor.Right : UIAnchor.Left,
UIAnchor.Stretch);
UIAnchorPosUtils.SetUILeftBottom(e.RectTransform,
UIAnchorPosUtils.GetUILeft(e.RectTransform), e.Layout_marginBottom);
UIAnchorPosUtils.SetUIRightTop(e.RectTransform,
UIAnchorPosUtils.GetUIRight(e.RectTransform), e.Layout_marginTop);
}
else
{
UIAnchorPosUtils.SetUIAnchor(e.RectTransform,
layoutReverse ? UIAnchor.Right : UIAnchor.Left,
UILayoutUtils.GravityToAnchor(Gravity, RectTransform.Axis.Vertical));
e.RectTransform.anchoredPosition = Vector2.zero;
}
UIAnchorPosUtils.SetUIPivot(e.RectTransform,
UILayoutUtils.AnchorToPivot(
layoutReverse ? UIAnchor.Right : UIAnchor.Left, RectTransform.Axis.Horizontal),
RectTransform.Axis.Horizontal);
e.DoResize();
if (e.RectTransform.rect.height > maxLayoutOtherHeight)
{
maxLayoutOtherHeight = e.RectTransform.rect.height;
}
}
}
}
if (maxLayoutOtherHeight <= 0)
{
maxLayoutOtherHeight = layoutDirection == LayoutAxis.Vertical ? RectTransform.rect.width : RectTransform.rect.height;
}
//自动将本容器撑大
if (layoutDirection == LayoutAxis.Vertical)
{
if (MaxSize.y > 0 && allLayoutHeight > MaxSize.y)
{
allLayoutHeight = MaxSize.y;
}
if (allLayoutHeight > MinSize.y)
{
RectTransform.sizeDelta = new Vector2(widthAutoWarp ? maxLayoutOtherHeight : RectTransform.sizeDelta.x, allLayoutHeight);
}
else if (thisAnchor[1] != UIAnchor.Stretch)
{
RectTransform.sizeDelta = new Vector2(widthAutoWarp ? maxLayoutOtherHeight : RectTransform.sizeDelta.x, MinSize.y);
}
}
else if (layoutDirection == LayoutAxis.Horizontal)
{
if (MaxSize.x > 0 && allLayoutHeight > MaxSize.x)
{
allLayoutHeight = MaxSize.x;
}
if (allLayoutHeight > MinSize.x)
{
RectTransform.sizeDelta = new Vector2(allLayoutHeight, heightAutoWarp ? maxLayoutOtherHeight : RectTransform.sizeDelta.y);
}
else if (thisAnchor[0] != UIAnchor.Stretch)
{
RectTransform.sizeDelta = new Vector2(MinSize.x, heightAutoWarp ? maxLayoutOtherHeight : RectTransform.sizeDelta.y);
}
}
DoResize();
//如果内容空间小于容器大小，那么居中内容
if (allLayoutHeight < (layoutDirection == LayoutAxis.Vertical ? RectTransform.rect.height : RectTransform.rect.width))
{
if (layoutDirection == LayoutAxis.Vertical)
{
if ((Gravity & LayoutGravity.CenterVertical) == LayoutGravity.CenterVertical)
{
startVal -= (RectTransform.rect.height / 2 - allLayoutHeight / 2);
}
if ((Gravity & LayoutGravity.Bottom) == LayoutGravity.Bottom)
{
startVal -= (RectTransform.rect.height - allLayoutHeight);
}
}
else
{
if ((Gravity & LayoutGravity.CenterHorizontal) == LayoutGravity.CenterHorizontal)
{
startVal += (RectTransform.rect.width / 2 - allLayoutHeight / 2);
}
if ((Gravity & LayoutGravity.End) == LayoutGravity.End)
{
startVal += (RectTransform.rect.width - allLayoutHeight);
}
}
}
//布局
if (!layoutReverse)
{
for (int i = 0; i < Elements.Count; i++)
{
e = Elements[i];
if (e.Visibility != UIVisibility.Gone) //跳过隐藏元素
{
rectTransform = e.RectTransform;
if (layoutDirection == LayoutAxis.Vertical)
{
startVal -= e.Layout_marginTop;
rectTransform.anchoredPosition = new Vector2(rectTransform.anchoredPosition.x, startVal);
startVal -= e.Layout_marginBottom;
startVal -= (rectTransform.rect.height + layoutChildSpacing);
}
else
{
startVal += e.Layout_marginLeft;
rectTransform.anchoredPosition = new Vector2(startVal, rectTransform.anchoredPosition.y);
startVal += e.Layout_marginRight;
startVal += (rectTransform.rect.width + layoutChildSpacing);
}
}
}
}
else
{
//反向布局
for (int i = Elements.Count; i >= 0; i--)
{
e = Elements[i];
if (e.Visibility != UIVisibility.Gone)//跳过隐藏元素
{
rectTransform = e.RectTransform;
if (layoutDirection == LayoutAxis.Vertical)
{
startVal -= e.Layout_marginTop;
rectTransform.anchoredPosition = new Vector2(rectTransform.anchoredPosition.x, startVal);
startVal -= e.Layout_marginBottom;
startVal = startVal - rectTransform.rect.height - layoutChildSpacing;
}
else
{
startVal += e.Layout_marginLeft;
rectTransform.anchoredPosition = new Vector2(startVal, rectTransform.anchoredPosition.y);
startVal += e.Layout_marginRight;
startVal = startVal + rectTransform.rect.width + layoutChildSpacing;
}
}
}
}
if (Parent != null)
{
Parent.DoLayout();
}
base.OnLayout();
}
private void DoLayoutElementVerticalInternal(UIElement e)
{
UIAnchor a = UIAnchor.None;
if (e.AnchorY != UIAnchor.Stretch)
{
if (!string.IsNullOrEmpty(e.Layout_alignTop) || !string.IsNullOrEmpty(e.Layout_below) ||
e.Layout_alignParentTop)
{
a = UIAnchor.Top;
}
else if (!string.IsNullOrEmpty(e.Layout_alignBottom) || !string.IsNullOrEmpty(e.Layout_above) ||
e.Layout_alignParentBottom)
{
a = UIAnchor.Bottom;
}
else if (e.Layout_centerVertical || e.Layout_centerInParent)
{
a = UIAnchor.Center;
}
else
{
a = UILayoutUtils.GravityToAnchor(Gravity, RectTransform.Axis.Vertical);
}
UIAnchorPosUtils.SetUIAnchor(e.RectTransform,
UIAnchorPosUtils.GetUIAnchor(e.RectTransform, RectTransform.Axis.Horizontal), a);
UIAnchorPosUtils.SetUIPivot(e.RectTransform,
UILayoutUtils.AnchorToPivot(a, RectTransform.Axis.Vertical), RectTransform.Axis.Vertical);
float finalValue = 0;
UIElement eRef = null;
if (!string.IsNullOrEmpty(e.Layout_below))
{
eRef = FindElementInLayoutByName(e.Layout_below);
if (eRef != null)
{
finalValue = eRef.RectTransform.anchoredPosition.y - eRef.RectTransform.rect.height
- e.Layout_marginTop;
}
}
else if (!string.IsNullOrEmpty(e.Layout_above))
{
eRef = FindElementInLayoutByName(e.Layout_above);
if (eRef != null)
{
finalValue = eRef.RectTransform.anchoredPosition.x + e.RectTransform.rect.height
+ e.Layout_marginBottom;
}
}
else if (!string.IsNullOrEmpty(e.Layout_alignTop))
{
eRef = FindElementInLayoutByName(e.Layout_alignTop);
if (eRef != null)
{
finalValue = eRef.RectTransform.anchoredPosition.y - e.Layout_marginTop;
}
}
else if (!string.IsNullOrEmpty(e.Layout_alignBottom))
{
eRef = FindElementInLayoutByName(e.Layout_alignBottom);
if (eRef != null)
{
finalValue = eRef.RectTransform.anchoredPosition.y - eRef.RectTransform.rect.height
+ e.RectTransform.rect.height + e.Layout_marginBottom;
}
}
else if (a == UIAnchor.Center)
{
finalValue = 0;
}
else if (a == UIAnchor.Top)
{
finalValue = -e.Layout_marginTop;
}
else if (a == UIAnchor.Bottom)
{
finalValue = e.Layout_marginBottom;
}
e.RectTransform.anchoredPosition = new Vector2(
e.RectTransform.anchoredPosition.x,
finalValue
);
}
}
private void DoLayoutElementHorizontalInternal(UIElement e)
{
UIAnchor a = UIAnchor.None;
if (e.AnchorX != UIAnchor.Stretch)
{
if (!string.IsNullOrEmpty(e.Layout_alignLeft) || !string.IsNullOrEmpty(e.Layout_toLeftOf) ||
e.Layout_alignParentLeft)
{
a = UIAnchor.Left;
}
else if (!string.IsNullOrEmpty(e.Layout_alignRight) || !string.IsNullOrEmpty(e.Layout_toRightOf) ||
e.Layout_alignParentRight)
{
a = UIAnchor.Right;
}
else if (e.Layout_centerHorizontal || e.Layout_centerInParent)
{
a = UIAnchor.Center;
}
else
{
a = UILayoutUtils.GravityToAnchor(Gravity, RectTransform.Axis.Horizontal);
}
UIAnchorPosUtils.SetUIAnchor(e.RectTransform, a,
UIAnchorPosUtils.GetUIAnchor(e.RectTransform, RectTransform.Axis.Vertical));
UIAnchorPosUtils.SetUIPivot(e.RectTransform,
UILayoutUtils.AnchorToPivot(a, RectTransform.Axis.Horizontal), RectTransform.Axis.Horizontal);
float finalValue = 0;
UIElement eRef = null;
if (!string.IsNullOrEmpty(e.Layout_toLeftOf))
{
eRef = FindElementInLayoutByName(e.Layout_toLeftOf);
if (eRef != null)
{
finalValue = eRef.RectTransform.anchoredPosition.x + eRef.RectTransform.rect.width
+ e.Layout_marginLeft;
}
}
else if (!string.IsNullOrEmpty(e.Layout_toRightOf))
{
eRef = FindElementInLayoutByName(e.Layout_toRightOf);
if (eRef != null)
{
finalValue = eRef.RectTransform.anchoredPosition.x - eRef.RectTransform.rect.width
- e.RectTransform.rect.width
- e.Layout_marginRight;
}
}
else if (!string.IsNullOrEmpty(e.Layout_alignLeft))
{
eRef = FindElementInLayoutByName(e.Layout_alignLeft);
if (eRef != null)
{
finalValue = eRef.RectTransform.anchoredPosition.x + e.Layout_marginLeft;
}
}
else if (!string.IsNullOrEmpty(e.Layout_alignRight))
{
eRef = FindElementInLayoutByName(e.Layout_alignRight);
if (eRef != null)
{
finalValue = eRef.RectTransform.anchoredPosition.x + eRef.RectTransform.rect.width
- e.RectTransform.rect.width - e.Layout_marginRight;
}
}
else if (a == UIAnchor.Center)
{
finalValue = 0;
}
else if (a == UIAnchor.Right)
{
finalValue = -e.Layout_marginRight;
}
else if (a == UIAnchor.Left)
{
finalValue = e.Layout_marginLeft;
}
e.RectTransform.anchoredPosition = new Vector2(
finalValue,
e.RectTransform.anchoredPosition.y);
}
}