Example usage for com.vaadin.ui DragAndDropWrapper setWidthUndefined

Introduction

In this page you can find the example usage for com.vaadin.ui DragAndDropWrapper setWidthUndefined.

Prototype

@Override
    public void setWidthUndefined() 

Source Link

Usage

From source file:org.lucidj.browser.AbstractCell.java

License:Apache License

private Component build_left_panel() {
    left_panel = new CssLayout();
    left_panel.setWidth(32, Sizeable.Unit.PIXELS);
    left_panel.addStyleName("cell-panel-left");
    left_panel.setHeight(100, Sizeable.Unit.PERCENTAGE);

    String icon_url = "/VAADIN/~/formulas/impossible.png";
    String icon_title = "The Unknown";

    ComponentInterface component_interface = Aggregate.adapt(ComponentInterface.class, source_object);
    if (component_interface != null) {
        // If it is a valid component, displays its icon on the top left corner of the cell
        ComponentDescriptor descriptor = (ComponentDescriptor) component_interface
                .getProperty(ComponentDescriptor.DESCRIPTOR);

        if (descriptor != null) {
            icon_url = descriptor.getIconUrl();
            icon_title = descriptor.getIconTitle();
        }/*from   w  w  w  .  ja  va 2s.co  m*/
    }

    String component_icon_html = "<img class='component-icon' src='" + icon_url + "' title='"
            + SafeHtmlUtils.htmlEscape(icon_title) + "'/>";
    component_icon = new Label(component_icon_html, ContentMode.HTML);
    left_panel.addComponent(component_icon);

    // Put the component in a D&D wrapper and allow dragging it
    final DragAndDropWrapper panel_dd_wrap = new DragAndDropWrapper(left_panel);
    panel_dd_wrap.setDragStartMode(DragAndDropWrapper.DragStartMode.COMPONENT_OTHER);
    panel_dd_wrap.setDragImageComponent(component_icon);
    panel_dd_wrap.addStyleName("no-horizontal-drag-hints");
    panel_dd_wrap.addStyleName("no-box-drag-hints");

    // Set the wrapper to wrap tightly around the component
    panel_dd_wrap.setHeight(100, Sizeable.Unit.PERCENTAGE);
    panel_dd_wrap.setWidthUndefined();
    panel_dd_wrap.setId("test");

    // Setup DD handlers for component insertion
    panel_dd_wrap.setData(this);
    panel_dd_wrap.setDropHandler(this);

    // While left_panel is kept in order to be customized, here we return D&D wrapper
    return (panel_dd_wrap);
}

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