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// -----------------------------------------------------------
class SpacerBase : ScriptedWidgetEventHandler
{
protected Widget m_root;
protected int m_count;
// -----------------------------------------------------------
void OnWidgetScriptInit(Widget w)
{
m_root = w;
m_count = 0;
Widget child = m_root.GetChildren();
while (child)
{
m_count++;
child.SetFlags(WidgetFlags.EXACTPOS | WidgetFlags.EXACTSIZE, false);
child = child.GetSibling();
}
m_root.SetHandler(this);
}
// -----------------------------------------------------------
override bool OnUpdate(Widget w)
{
if (w == m_root) UpdateLayout();
return false;
}
// -----------------------------------------------------------
override bool OnChildAdd( Widget w, Widget child)
{
m_count++;
child.SetFlags(WidgetFlags.EXACTPOS | WidgetFlags.EXACTSIZE, false);
return false;
}
// -----------------------------------------------------------
override bool OnChildRemove( Widget w, Widget child)
{
m_count--;
return false;
}
// -----------------------------------------------------------
protected int GetChildIndex(Widget w)
{
Widget child = m_root.GetChildren();
int index = 0;
while (child)
{
if (child == w) return index;
index++;
child = child.GetSibling();
}
return INDEX_NOT_FOUND;
}
// -----------------------------------------------------------
void UpdateLayout()
{
if (m_count == 0) return;
float width;
float height;
m_root.GetScreenSize(width, height);
Widget child = m_root.GetChildren();
int index = 0;
while (child)
{
UpdateChild(child, width, height, index);
index++;
child = child.GetSibling();
}
}
protected void UpdateChild(Widget child, float w, float h, int index) {}
}; |