Example usage for com.google.gwt.user.client.ui WidgetCollection insert

Introduction

In this page you can find the example usage for com.google.gwt.user.client.ui WidgetCollection insert.

Prototype

public void insert(Widget w, int beforeIndex) 

Source Link

Document

Inserts a widget before the specified index.

Usage

From source file:geogebra.web.gui.app.docklayout.MyDockLayoutPanel.java

License:Apache License

/**
 * Adds a widget to the specified edge of the dock. If the widget is already
 * a child of this panel, this method behaves as though
 * {@link #remove(Widget)} had already been called.
 * /*  ww w.ja  va  2s.  c o m*/
 * @param widget
 *            the widget to be added
 * @param direction
 *            the widget's direction in the dock
 * @param before
 *            the widget before which to insert the new child, or
 *            <code>null</code> to append
 */
protected void insert(Widget widget, Direction direction, double size, Widget before) {
    assertIsChild(before);

    // Validation.
    if (before == null) {
        assert center == null : "No widget may be added after the CENTER widget";
    } else {
        assert direction != Direction.CENTER : "A CENTER widget must always be added last";
    }

    // Detach new child.
    widget.removeFromParent();

    // Logical attach.
    WidgetCollection children = getChildren();
    if (before == null) {
        children.add(widget);
    } else {
        int index = children.indexOf(before);
        children.insert(widget, index);
    }

    if (direction == Direction.CENTER) {
        center = widget;
    }

    // Physical attach.
    Layer layer = layout.attachChild(widget.getElement(), (before != null) ? before.getElement() : null,
            widget);
    LayoutData data = new LayoutData(direction, size, layer);
    widget.setLayoutData(data);

    // Adopt.
    adopt(widget);

    // Update the layout.
    animate(0);
}

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From source file:org.kaaproject.kaa.server.admin.client.layout.CustomDeckLayoutPanel.java

License:Apache License

/**
 * Insert a widget before the specified widget. If the widget is already a
 * child of this panel, this method behaves as though {@link #remove(Widget)}
 * had already been called.//from ww  w  .  j  ava  2s .com
 *
 * @param widget the widget to be added
 * @param before the widget before which to insert the new child, or
 *          <code>null</code> to append
 */
public void insert(Widget widget, Widget before) {
    assertIsChild(before);

    // Detach new child.
    widget.removeFromParent();

    // Logical attach.
    WidgetCollection children = getChildren();
    if (before == null) {
        children.add(widget);
    } else {
        int index = children.indexOf(before);
        children.insert(widget, index);
    }

    // Physical attach.
    Layer layer = layout.attachChild(widget.getElement(), (before != null) ? before.getElement() : null,
            widget);
    setWidgetVisible(widget, layer, false);
    widget.setLayoutData(layer);

    // Adopt.
    adopt(widget);

    // Update the layout.
    animate(0);
}

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