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// -----------------------------------------------------------
class AutoHeightSpacer : ScriptedWidgetEventHandler
{
reference bool AlignChilds;
reference int MinHeight;
reference int MaxHeight;
reference int Gap;
reference float Top;
protected Widget m_root;
void Update()
{
float x = 0;
float y = 0;
float width = 0;
float height = 0;
float heightOld = 0;
float top = Top;
float rowRight;
float rowHeight;
float rowWidth;
Widget child = m_root.GetChildren();
//PrintString(m_root.GetName() + ": AutoHeightSpacer::Update()");
if ( !AlignChilds ) top = -100000;
if (child != NULL)
{
// first row init
m_root.GetScreenSize(rowWidth, height);
rowHeight = 0;
rowRight = rowWidth;
while (child)
{
if (child.IsVisible() == false || child.GetName() == "SelectedContainer" || child.GetName() == "Icon")
{
// skip invisible widgets
child = child.GetSibling();
continue;
}
child.GetScreenSize(width, height);
if (AlignChilds)
{
child.SetFlags(WidgetFlags.EXACTPOS, false);
// no space left in this row, move to next one
if (rowRight < width)
{
top += rowHeight;
if ( rowHeight > 0 ) top += Gap;
rowRight = rowWidth;
rowHeight = 0;
}
// increase row height if necessary
if (height > rowHeight) rowHeight = height;
child.SetPos(rowWidth - rowRight, top, false);
rowRight -= width + Gap;
}
else
{
child.GetScreenPos(x, y);
y += height;
if (top < y) top = y;
}
child = child.GetSibling();
}
// add last row height;
top += rowHeight;
if (AlignChilds)
{
height = top;
}
else
{
m_root.GetScreenPos(x, y);
height = top - y;
}
}
m_root.GetSize(width, heightOld);
if (MaxHeight > 0 && height > MaxHeight)
{
height = MaxHeight;
}
if (MinHeight > height)
{
height = MinHeight;
}
if (Math.AbsInt(heightOld - height) > 1)
{
m_root.SetSize(width, height);
}
else if (AlignChilds)
{
m_root.Update();
}
return;
}
void OnWidgetScriptInit(Widget w)
{
m_root = w;
m_root.SetHandler(this);
m_root.SetFlags(WidgetFlags.VEXACTPOS);
Update();
}
override bool OnChildRemove( Widget w, Widget child) {
if (w == m_root)
{
Update();
}
return false;
}
};
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