/*
* Ext GWT - Ext for GWT
* Copyright(c) 2007, 2008, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
package com.extjs.gxt.ui.client.widget.layout;
import com.extjs.gxt.ui.client.core.El;
import com.extjs.gxt.ui.client.widget.BoxComponent;
import com.extjs.gxt.ui.client.widget.Component;
import com.extjs.gxt.ui.client.widget.ComponentHelper;
import com.extjs.gxt.ui.client.widget.Container;
/**
* Inherits the anchoring of {@link AnchorLayout} and adds the ability for left /
* top positioning using the <code>AbsoluteData</code> left and top
* properties.
*
* @see AbsoluteData
*/
public class AbsoluteLayout extends AnchorLayout {
public AbsoluteLayout() {
setExtraStyle("x-abs-layout-item");
}
/**
* Sets the component's position.
*
* @param c the component
* @param left the left value
* @param top the top value
*/
public void setPosition(Component c, int left, int top) {
AbsoluteData ad = (AbsoluteData) ComponentHelper.getLayoutData(c);
if (ad == null) {
ad = new AbsoluteData();
ComponentHelper.setLayoutData(c, ad);
}
ad.setLeft(left);
ad.setTop(top);
if (container.isRendered() && c.isRendered()) {
if (c instanceof BoxComponent) {
BoxComponent box = (BoxComponent) c;
box.setPosition(left, top);
} else {
if (left != -1) {
c.el().setLeft(left);
}
if (top != -1) {
c.el().setTop(top);
}
}
}
}
@Override
protected void onLayout(Container container, El target) {
super.onLayout(container, target);
target.makePositionable();
for (int i = 0; i < container.getItemCount(); i++) {
Component c = container.getItem(0);
LayoutData data = ComponentHelper.getLayoutData(c);
if (data != null && data instanceof AbsoluteData) {
AbsoluteData ad = (AbsoluteData) data;
setPosition(c, ad.getLeft(), ad.getTop());
}
}
}
@Override
protected void renderComponent(Component component, int index, El target) {
super.renderComponent(component, index, target);
component.el().makePositionable(true);
}
}