spacerbase.c

Go to the documentation of this file.

// -----------------------------------------------------------
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) {}
};