Java tutorial
/* Copyright (C) 2007-2011 Database Group - Universita' della Basilicata Giansalvatore Mecca - giansalvatore.mecca@unibas.it Salvatore Raunich - salrau@gmail.com Marcello Buoncristiano - marcello.buoncristiano@yahoo.it This file is part of ++Spicy - a Schema Mapping and Data Exchange Tool ++Spicy 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 any later version. ++Spicy 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 ++Spicy. If not, see <http://www.gnu.org/licenses/>. */ package it.unibas.spicygui.vista.listener; import it.unibas.spicygui.Costanti; import it.unibas.spicygui.widget.caratteristiche.CaratteristicheWidgetConstraint; import it.unibas.spicygui.widget.caratteristiche.CaratteristicheWidgetTree; import it.unibas.spicygui.widget.caratteristiche.ICaratteristicheWidget; import it.unibas.spicygui.vista.GraphSceneGlassPane; import java.awt.Component; import java.awt.Point; import java.awt.Rectangle; import java.util.Iterator; import java.util.List; import javax.swing.JLayeredPane; import javax.swing.JTree; import javax.swing.SwingUtilities; import javax.swing.event.TreeExpansionEvent; import javax.swing.event.TreeExpansionListener; import javax.swing.tree.TreePath; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.netbeans.api.visual.widget.LayerWidget; import org.netbeans.api.visual.widget.Widget; public class WidgetMoveExpansionListener implements TreeExpansionListener { private static Log logger = LogFactory.getLog(WidgetMoveExpansionListener.class); private JLayeredPane jLayeredPane; private GraphSceneGlassPane glassPane; private Component source; private Component connectedComponent; private String type; public WidgetMoveExpansionListener(JLayeredPane jLayeredPane, Component source, GraphSceneGlassPane glassPane, Component connectedComponent, String type) { this.jLayeredPane = jLayeredPane; this.glassPane = glassPane; this.source = source; this.connectedComponent = connectedComponent; this.type = type; } public void treeExpanded(TreeExpansionEvent event) { adjustmentValueChanged(); } public void treeCollapsed(TreeExpansionEvent event) { adjustmentValueChanged(); } private void adjustmentValueChanged() { LayerWidget mainLayer = glassPane.getMainLayer(); List<Widget> listaWidget = mainLayer.getChildren(); Iterator iteratore = listaWidget.iterator(); this.jLayeredPane.moveToFront(this.glassPane); while (iteratore.hasNext()) { Widget widget = (Widget) iteratore.next(); ICaratteristicheWidget caratteristicheWidget = (ICaratteristicheWidget) mainLayer .getChildConstraint(widget); Point newPoint = null; if (caratteristicheWidget.getTreeType().equalsIgnoreCase(Costanti.TREE_SOURCE) || caratteristicheWidget.getTreeType().equalsIgnoreCase(Costanti.TREE_TARGET)) { newPoint = findNewLocationForTree(caratteristicheWidget, (JTree) connectedComponent); } else if (caratteristicheWidget.getTreeType().equalsIgnoreCase(Costanti.FOREIGN_KEY) || caratteristicheWidget.getTreeType().equalsIgnoreCase(Costanti.KEY)) { newPoint = findNewLocationForOther(caratteristicheWidget, widget); } if (newPoint != null) { widget.setPreferredLocation(newPoint); } glassPane.getScene().validate(); this.jLayeredPane.moveToFront(this.glassPane); glassPane.updateUI(); } glassPane.updateUI(); this.jLayeredPane.moveToFront(this.glassPane); } private Point findNewLocationForOther(ICaratteristicheWidget caratteristicheWidget, Widget widget) { CaratteristicheWidgetConstraint caratteristicheWidgetConstraint = (CaratteristicheWidgetConstraint) caratteristicheWidget; Widget originalWidget = caratteristicheWidgetConstraint.getWidgetOriginale(); Point originalPoint = caratteristicheWidgetConstraint.getOriginalPoint(); int x = (originalWidget.getPreferredLocation().x - originalPoint.x) + widget.getPreferredLocation().x; int y = (originalWidget.getPreferredLocation().y - originalPoint.y) + widget.getPreferredLocation().y; caratteristicheWidgetConstraint.setOriginalPoint( new Point(originalWidget.getPreferredLocation().x, originalWidget.getPreferredLocation().y)); return new Point(x, y); } private Point findNewLocationForTree(ICaratteristicheWidget icaratteristicheWidget, JTree albero) { CaratteristicheWidgetTree caratteristicheWidget = (CaratteristicheWidgetTree) icaratteristicheWidget; Point oldPoint = caratteristicheWidget.getPosizione(); if (logger.isTraceEnabled()) logger.trace("oldPoint: " + oldPoint); TreePath treePath = caratteristicheWidget.getTreePath(); Rectangle rect = albero.getPathBounds(treePath); if (rect != null && this.type.equalsIgnoreCase(caratteristicheWidget.getTreeType())) { Point newPoint = albero.getPathBounds(treePath).getLocation(); Point convertedPoint = SwingUtilities.convertPoint(source, newPoint, glassPane); if (logger.isTraceEnabled()) logger.trace(" -- newPoint: " + convertedPoint); if (caratteristicheWidget.getTreeType().equalsIgnoreCase(Costanti.TREE_SOURCE)) { return new Point( convertedPoint.x + (albero.getPathBounds(treePath).width - Costanti.OFFSET_X_WIDGET_SOURCE), convertedPoint.y + (albero.getPathBounds(treePath).height / Costanti.OFFSET_Y_WIDGET_SOURCE)); } return new Point(convertedPoint.x, convertedPoint.y + 5); } else if (this.type.equalsIgnoreCase(caratteristicheWidget.getTreeType())) { TreePath treePathInterno = treePath; Rectangle rectInterno = albero.getPathBounds(treePathInterno); while (rectInterno == null) { if (treePathInterno == null) { return null; } treePathInterno = treePathInterno.getParentPath(); rectInterno = albero.getPathBounds(treePathInterno); } Point newPoint = albero.getPathBounds(treePathInterno).getLocation(); Point convertedPoint = SwingUtilities.convertPoint(source, newPoint, glassPane); if (logger.isTraceEnabled()) logger.trace(" -- newPoint: " + convertedPoint); if (caratteristicheWidget.getTreeType().equalsIgnoreCase(Costanti.TREE_SOURCE)) { return new Point( convertedPoint.x + (albero.getPathBounds(treePathInterno).width - Costanti.OFFSET_X_WIDGET_SOURCE), convertedPoint.y + (albero.getPathBounds(treePathInterno).height / Costanti.OFFSET_Y_WIDGET_SOURCE)); } return new Point(convertedPoint.x, convertedPoint.y + 5); } return null; } }