305 lines
9.0 KiB
Java
305 lines
9.0 KiB
Java
//This file is part of SECONDO.
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//Copyright (C) 2004, University in Hagen, Department of Computer Science,
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//Database Systems for New Applications.
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//SECONDO is free software; you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or
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//(at your option) any later version.
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//SECONDO is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//You should have received a copy of the GNU General Public License
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//along with SECONDO; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package viewer.queryconstruction2;
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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.Graphics;
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import java.util.ArrayList;
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import java.util.Iterator;
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import javax.swing.ImageIcon;
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import javax.swing.JComponent;
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import sj.lang.ListExpr;
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import viewer.QueryconstructionViewer2;
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/**
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* An instance of this class is the object
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* component in the ObjectsPane and the MainPane or an
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* operation component in the MainPane.
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*/
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public class ObjectView extends JComponent {
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private String name;
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private String label;
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private char[] signature;
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private boolean isActive;
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private ArrayList<StreamView> paramStreams = new ArrayList<StreamView>();
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private int xpos = 10;
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private int ypos = 10;
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private ListExpr list;
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private String type;
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private Color color = Color.BLACK;
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// define supported object types
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protected static final String OPERATION = "operation";
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protected static final String TRELATION = "trel";
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protected static final String RELATION = "rel";
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protected static final String MPOINT = "mpoint";
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protected static final String POINT = "point";
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protected static final String REGION = "region";
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protected static final String MREGION = "mregion";
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protected final static char obChar = 'o';
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protected final static char opChar = '#';
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protected final static char pChar = 'p';
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public ObjectView(){
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this.setOpaque(false);
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this.setPreferredSize(new Dimension(120, 70));
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}
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protected ObjectView(String name, String type){
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this.name = name;
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this.label = name;
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this.type = type;
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}
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protected ObjectView(ListExpr list){
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this.list = list.fourth().first();
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name = list.second().stringValue();
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//the object can be of atom type or a relation
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if (list.fourth().first().isAtom()) {
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type = list.fourth().first().symbolValue();
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}
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else {
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type = list.fourth().first().first().symbolValue();
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}
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this.label = this.name;
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}
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/**
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* Add a stream as input parameter.
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* @param stream
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*/
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protected void addParamStream(StreamView stream) {
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paramStreams.add(stream);
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}
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/**
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* Generate a copy of the object.
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* @param label
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* @return
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*/
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protected ObjectView copy(String label){
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ObjectView newObject = new ObjectView(this.name, this.type);
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newObject.setLabel(label);
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return newObject;
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}
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/**
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* Return a constant copy of the object, if it is an attribute.
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* @param onlyName return only the name and don't process the signature
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* @return
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*/
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protected String getConst(boolean onlyName){
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String result = "";
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if ((this.name.startsWith(".") || this.name.startsWith("attr"))
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&& !this.type.equals("param")) {
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result = "[const ";
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result += this.getType() + " value undef]";
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}
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else {
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if (onlyName)
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return this.name;
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else
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return this.getObjectName().trim() + " ";
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}
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return result;
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}
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protected String getLabel(){
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return label;
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}
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/**
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* Get the name or the result string of the object.
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* If it is an Operator, use the signature.
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* @return
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*/
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protected String getObjectName() {
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if (signature == null)
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return name;
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String result = "";
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int pS = 0;
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for (char c : signature) {
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switch(c) {
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case obChar:
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break;
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case opChar:
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result += this.name;
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break;
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case pChar:
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// use the parameter objects.
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if (pS < paramStreams.size()){
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for (Iterator iter = paramStreams.get(pS).getObjects()
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.iterator(); iter.hasNext();) {
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ObjectView object = (ObjectView) iter.next();
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result += object.getObjectName().trim();
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}
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pS++;
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}
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break;
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default:
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result += c;
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break;
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}
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}
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if (result.length() < 12)
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this.label = result;
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return result;
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}
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/**
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* Get only the object name.
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* @return
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*/
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protected String getOnlyName() {
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return this.name;
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}
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/**
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* @return type
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*/
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protected String getType(){
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return type;
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}
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/**
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* Get the nested list, the object is generated of.
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* @return
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*/
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protected String getViewString() {
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if (this.list != null)
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return this.list.toString();
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else return this.getType();
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}
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/**
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* @return true, if the object should be visible
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*/
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protected boolean isActive() {
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return isActive;
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}
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/**
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* Change the name and the label of the object.
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* @param name
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*/
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protected void rename(String name){
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this.name = name.replace(".", "");
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if (name.length() < 12)
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this.label = name;
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else
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label = label.replace(".", "");
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}
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protected void setActive(boolean active){
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this.isActive = active;
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}
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protected void setLabel(String label) {
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this.label = label;
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}
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protected void setSignature(String sig) {
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this.signature = sig.toCharArray();
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}
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/**
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* Paint an ObjectView into the mainPane.
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*/
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protected void paintComponent(Graphics g, int x, int y){
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this.xpos = 10 + x*120;
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this.ypos = 10 + y*80;
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paintComponent(g);
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}
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/**
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* Paint an ObjectView object into the MainPane or the ObjectPane.
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* height 90, width 50
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*/
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protected void paintComponent(Graphics g){
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g.setColor(Color.black);
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if (type.equals(OPERATION)) {
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g.drawOval(xpos, ypos, 90, 50);
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}
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else {
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g.drawRect(xpos, ypos, 90, 50);
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if (type.equals(RELATION)) {
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ImageIcon icon = new ImageIcon(QueryconstructionViewer2
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.class.getResource(
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"queryconstruction2/images/relation.gif"));
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g.drawImage(icon.getImage(), xpos + 5, ypos + 5, this);
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}
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if (type.equals(MPOINT)) {
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ImageIcon icon = new ImageIcon(QueryconstructionViewer2
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.class.getResource(
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"queryconstruction2/images/mpoint.gif"));
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g.drawImage(icon.getImage(), xpos + 5, ypos + 5, this);
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}
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if (type.equals(POINT)) {
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ImageIcon icon = new ImageIcon(QueryconstructionViewer2
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.class.getResource(
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"queryconstruction2/images/point.gif"));
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g.drawImage(icon.getImage(), xpos + 5, ypos + 5, this);
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}
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if (type.equals(REGION)) {
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ImageIcon icon = new ImageIcon(QueryconstructionViewer2
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.class.getResource(
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"queryconstruction2/images/region.gif"));
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g.drawImage(icon.getImage(), xpos + 5, ypos + 5, this);
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}
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if (type.equals(MREGION)) {
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ImageIcon icon = new ImageIcon(QueryconstructionViewer2
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.class.getResource(
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"queryconstruction2/images/mregion.gif"));
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g.drawImage(icon.getImage(), xpos + 5, ypos + 5, this);
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}
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}
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int w = g.getFontMetrics().stringWidth(label);
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String s = label;
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if (w > 90) {
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s = label.substring(0, 5) + "..." +
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label.substring(label.length()-5, label.length());
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w = g.getFontMetrics().stringWidth(s);
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}
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g.drawString(s, xpos + 45 - w/2, ypos + 30);
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}
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}
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