/**
* Returns the specified element's layout bounds as a Rectangle or null
* if the index is invalid, the corresponding element is null,
* <code>includeInLayout=false</code>,
* or if this layout's <code>target</code> property is null.
*
* <p>Layout subclasses that support <code>useVirtualLayout=true</code> must
* override this method to compute a potentially approximate value for
* elements that are not in view.</p>
*
* Param: index Index of the layout element.
*
* Returns: The specified element's layout bounds.
*/
internal virtual Rectangle GetElementBounds(int index) // TEMP internal
{
GroupBase g = Target;
if (null == g)
{
return(null);
}
int n = g.NumberOfChildren;
if ((index < 0) || (index >= n))
{
return(null);
}
ILayoutElement elt = (ILayoutElement)g.GetChildAt(index);
if (null == elt || !elt.IncludeInLayout)
{
return(null);
}
float eltX = LayoutUtil.GetLayoutBoundsX((InvalidationManagerClient)elt);
float eltY = LayoutUtil.GetLayoutBoundsY((InvalidationManagerClient)elt);
float eltW = LayoutUtil.GetLayoutBoundsWidth((InvalidationManagerClient)elt);
float eltH = LayoutUtil.GetLayoutBoundsHeight((InvalidationManagerClient)elt);
return(new Rectangle(eltX, eltY, eltW, eltH));
}
///<summary>
///</summary>
///<param name="width"></param>
///<param name="height"></param>
override internal void UpdateDisplayList(float width, float height)
{
//if (((Component)Target.Owner).Id == "test")
// Debug.Log("AbsoluteLayout -> UpdateDisplayList: " + width + ", " + height);
//base.UpdateDisplayList(width, height);
GroupBase layoutTarget = Target;
if (null == layoutTarget)
{
return;
}
int count = layoutTarget.NumberOfChildren;
float maxX = 0;
float maxY = 0;
for (int i = 0; i < count; i++)
{
//Debug.Log("layoutTarget.GetChildAt(i): " + layoutTarget.GetChildAt(i));
ILayoutElement layoutElement = (ILayoutElement)layoutTarget.GetChildAt(i);
//if (layoutElement is LoadingMaskBase)
// Debug.Log(string.Format("*** A) layoutElement is LoadingMaskBase: layoutElement.IncludeInLayout: {0};", layoutElement.IncludeInLayout));
if (null == layoutElement || !layoutElement.IncludeInLayout)
{
continue;
}
//if (layoutElement is LoadingMaskBase)
// Debug.Log(string.Format("*** B) layoutElement is LoadingMaskBase: layoutElement.IncludeInLayout: {0};", layoutElement.IncludeInLayout));
float?left = LayoutUtil.ParseConstraintValue(layoutElement.Left);
float?right = LayoutUtil.ParseConstraintValue(layoutElement.Right);
float?top = LayoutUtil.ParseConstraintValue(layoutElement.Top);
float?bottom = LayoutUtil.ParseConstraintValue(layoutElement.Bottom);
float?hCenter = LayoutUtil.ParseConstraintValue(layoutElement.HorizontalCenter);
float?vCenter = LayoutUtil.ParseConstraintValue(layoutElement.VerticalCenter);
float?percentWidth = layoutElement.PercentWidth;
float?percentHeight = layoutElement.PercentHeight;
float?elementMaxWidth = null;
float?elementMaxHeight = null;
// Calculate size
float?childWidth = null;
float?childHeight = null;
if (null != percentWidth)
{
var availableWidth = width;
if (null != left)
{
availableWidth -= (float)left;
}
if (null != right)
{
availableWidth -= (float)right;
}
childWidth = (float?)Math.Round(availableWidth * Math.Min((float)percentWidth * 0.01f, 1f));
elementMaxWidth = Math.Min(LayoutUtil.GetMaxBoundsWidth(layoutElement as InvalidationManagerClient),
MaxSizeToFitIn(width, hCenter, left, right, LayoutUtil.GetLayoutBoundsX(layoutElement as InvalidationManagerClient)));
}
else if (null != left && null != right)
{
childWidth = width - right - left;
}
if (null != percentHeight)
{
float availableHeight = height;
if (null != top)
{
availableHeight -= (float)top;
}
if (null != bottom)
{
availableHeight -= (float)bottom;
}
childHeight = (float?)Math.Round(availableHeight * Math.Min((float)percentHeight * 0.01, 1));
elementMaxHeight = Math.Min(LayoutUtil.GetMaxBoundsHeight(layoutElement as InvalidationManagerClient),
MaxSizeToFitIn(height, vCenter, top, bottom, LayoutUtil.GetLayoutBoundsY(layoutElement as InvalidationManagerClient)));
}
else if (null != top && null != bottom)
{
childHeight = height - bottom - top;
}
// Apply min and max constraints, make sure min is applied last. In the cases
// where childWidth and childHeight are NaN, setLayoutBoundsSize will use preferredSize
// which is already constrained between min and max.
if (null != childWidth)
{
if (null == elementMaxWidth)
{
elementMaxWidth = LayoutUtil.GetMaxBoundsWidth(layoutElement as InvalidationManagerClient);
}
childWidth = Math.Max(LayoutUtil.GetMinBoundsWidth(layoutElement as InvalidationManagerClient), Math.Min((float)elementMaxWidth, (float)childWidth));
}
if (null != childHeight)
{
if (null == elementMaxHeight)
{
elementMaxHeight = LayoutUtil.GetMaxBoundsHeight(layoutElement as InvalidationManagerClient);
}
childHeight = Math.Max(LayoutUtil.GetMinBoundsHeight(layoutElement as InvalidationManagerClient), Math.Min((float)elementMaxHeight, (float)childHeight));
}
// Set the size.
LayoutUtil.SetLayoutBoundsSize(layoutElement as InvalidationManagerClient, childWidth, childHeight);
float elementWidth = LayoutUtil.GetLayoutBoundsWidth(layoutElement as InvalidationManagerClient);
float elementHeight = LayoutUtil.GetLayoutBoundsHeight(layoutElement as InvalidationManagerClient);
float childX;
float childY;
// Horizontal position
if (null != hCenter)
{
childX = (float)Math.Round((width - elementWidth) / 2 + (float)hCenter);
}
else if (null != left)
{
childX = (float)left;
}
else if (null != right)
{
childX = (float)(width - elementWidth - right);
}
else
{
childX = LayoutUtil.GetLayoutBoundsX(layoutElement as InvalidationManagerClient);
}
// Vertical position
if (null != vCenter)
{
childY = (float)Math.Round((height - elementHeight) / 2 + (float)vCenter);
}
else if (null != top)
{
childY = (float)top;
}
else if (null != bottom)
{
childY = (float)(height - elementHeight - bottom);
}
else
{
childY = LayoutUtil.GetLayoutBoundsY(layoutElement as InvalidationManagerClient);
}
// Set position
//LayoutUtil.SetLayoutBoundsPosition(layoutElement as InvalidationManagerClient, childX, childY);
layoutElement.SetLayoutBoundsPosition(childX, childY);
// update content limits
maxX = Math.Max(maxX, childX + elementWidth);
maxY = Math.Max(maxY, childY + elementHeight);
}
// Make sure that if the content spans partially over a pixel to the right/bottom,
// the content size includes the whole pixel.
layoutTarget.SetContentSize(Mathf.Ceil(maxX), Mathf.Ceil(maxY));
}
