/******************************************************************************* * This file is part of OpenNMS(R). * * Copyright (C) 2010-2011 The OpenNMS Group, Inc. * OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc. * * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc. * * OpenNMS(R) is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation, either version 3 of the License, * or (at your option) any later version. * * OpenNMS(R) is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with OpenNMS(R). If not, see: * http://www.gnu.org/licenses/ * * For more information contact: * OpenNMS(R) Licensing <license@opennms.org> * http://www.opennms.org/ * http://www.opennms.com/ *******************************************************************************/ package org.opennms.features.dashboard.client.dnd; import com.google.gwt.user.client.ui.AbsolutePanel; import com.google.gwt.user.client.ui.Widget; import com.allen_sauer.gwt.dnd.client.AbstractDragController; import com.allen_sauer.gwt.dnd.client.drop.BoundaryDropController; import java.util.HashMap; import org.opennms.features.dashboard.client.portlet.AbsPopup; import org.opennms.features.dashboard.client.portlet.DirectionConstant; import org.opennms.features.dashboard.client.portlet.IBasicPortlet; /** * author: Tharindu Munasinghe (tharindumunasinghe@gmail.com) * org.opennms.features.dashboard */ public final class ResizeDragController extends AbstractDragController { private static final int MIN_WIDGET_SIZE = 50; private HashMap<Widget, DirectionConstant> directionMap = new HashMap<Widget, DirectionConstant>(); private IBasicPortlet portlet = null; public ResizeDragController(AbsolutePanel boundaryPanel) { super(boundaryPanel); } @Override public void dragMove() { int direction = ((ResizeDragController) context.dragController).getDirection(context.draggable).directionBits; if ((direction & AbsPopup.DIRECTION_SOUTH) != 0) { int delta = context.desiredDraggableY - context.draggable.getAbsoluteTop(); if (delta != 0 && (portlet.getContentHeight() + delta) > 0) { portlet.setContentSize(portlet.getContentWidth(), portlet.getContentHeight() + delta); } } if ((direction & AbsPopup.DIRECTION_EAST) != 0) { int delta = context.desiredDraggableX - context.draggable.getAbsoluteLeft(); if (delta != 0 && (portlet.getContentWidth() + delta) > 0) { portlet.setContentSize(portlet.getContentWidth() + delta, portlet.getContentHeight()); } } } @Override public void dragStart() { super.dragStart(); portlet = (IBasicPortlet) context.draggable.getParent().getParent(); } public void makeDraggable(Widget widget, DirectionConstant direction) { super.makeDraggable(widget); directionMap.put(widget, direction); } protected BoundaryDropController newBoundaryDropController( AbsolutePanel boundaryPanel, boolean allowDroppingOnBoundaryPanel) { if (allowDroppingOnBoundaryPanel) { throw new IllegalArgumentException(); } return new BoundaryDropController(boundaryPanel, false); } private DirectionConstant getDirection(Widget draggable) { return directionMap.get(draggable); } }