Examples with DDAbsoluteLayout com.haulmont.cuba.web.widgets.addons.dragdroplayouts.DDAbsoluteLayout used on opensource projects

Example 6 with DDAbsoluteLayout

use of com.haulmont.cuba.web.widgets.addons.dragdroplayouts.DDAbsoluteLayout in project cuba by cuba-platform.

the class DefaultGridLayoutDropHandler method handleDropFromLayout.

/*
     * (non-Javadoc)
     * 
     * @see
     * com.haulmont.cuba.web.widgets.addons.dragdroplayouts.drophandlers.AbstractDefaultLayoutDropHandler
     * #handleDropFromLayout(com.vaadin.event.dd.DragAndDropEvent)
     */
@Override
protected void handleDropFromLayout(DragAndDropEvent event) {
    LayoutBoundTransferable transferable = (LayoutBoundTransferable) event.getTransferable();
    GridLayoutTargetDetails details = (GridLayoutTargetDetails) event.getTargetDetails();
    DDGridLayout layout = (DDGridLayout) details.getTarget();
    Component source = event.getTransferable().getSourceComponent();
    Component comp = transferable.getComponent();
    if (comp == layout) {
        // move
        if (comp.getParent() instanceof DDAbsoluteLayout) {
            MouseEventDetails mouseDown = transferable.getMouseDownEvent();
            MouseEventDetails mouseUp = details.getMouseEvent();
            int movex = mouseUp.getClientX() - mouseDown.getClientX();
            int movey = mouseUp.getClientY() - mouseDown.getClientY();
            DDAbsoluteLayout parent = (DDAbsoluteLayout) comp.getParent();
            ComponentPosition position = parent.getPosition(comp);
            float x = position.getLeftValue() + movex;
            float y = position.getTopValue() + movey;
            position.setLeft(x, Sizeable.UNITS_PIXELS);
            position.setTop(y, Sizeable.UNITS_PIXELS);
            return;
        }
    } else {
        // Check that we are not dragging an outer layout into an inner
        // layout
        Component parent = layout.getParent();
        while (parent != null) {
            if (parent == comp) {
                return;
            }
            parent = parent.getParent();
        }
        // Detach from old source
        if (source instanceof ComponentContainer) {
            ((ComponentContainer) source).removeComponent(comp);
        } else if (source instanceof SingleComponentContainer) {
            ((SingleComponentContainer) source).setContent(null);
        }
    }
    int row = details.getOverRow();
    int column = details.getOverColumn();
    addComponent(event, comp, column, row);
}