Java tutorial
/* * OperatorFigure.java * * Created on May 19, 2007, 3:16 PM * * This program 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 2 of the License, or (at * your option) any later version. * * This program 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 this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Copyright (C) 2009 Yan Cheng Cheok <yccheok@yahoo.com> */ package org.yccheok.jstock.gui.analysis; import org.yccheok.jstock.gui.*; import java.io.IOException; import java.awt.geom.*; import static org.jhotdraw.draw.AttributeKeys.*; import java.util.*; import org.jhotdraw.draw.*; import org.jhotdraw.geom.*; import org.jhotdraw.util.*; import org.jhotdraw.xml.*; import org.yccheok.jstock.analysis.*; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /** * * @author yccheok */ public abstract class OperatorFigure extends GraphicalCompositeFigure implements java.beans.PropertyChangeListener { private LinkedList<AbstractConnector> connectors; private Operator operator; /** Creates a new instance. */ protected OperatorFigure(Operator operator) { super(new RectangleFigure()); this.operator = operator; // Register listener. ((AbstractOperator) this.operator).addPropertyChangeListener(this); setLayouter(new VerticalLayouter()); RectangleFigure nameCompartmentPF = new RectangleFigure(); STROKE_COLOR.set(nameCompartmentPF, null); nameCompartmentPF.setAttributeEnabled(STROKE_COLOR, false); FILL_COLOR.set(nameCompartmentPF, null); nameCompartmentPF.setAttributeEnabled(FILL_COLOR, false); ListFigure nameCompartment = new ListFigure(nameCompartmentPF); ListFigure attributeCompartment = new ListFigure(); SeparatorLineFigure separator1 = new SeparatorLineFigure(); applyAttributes(getPresentationFigure()); add(nameCompartment); add(separator1); add(attributeCompartment); Insets2D.Double insets = new Insets2D.Double(4, 8, 4, 8); LAYOUT_INSETS.set(nameCompartment, insets); LAYOUT_INSETS.set(attributeCompartment, insets); TextFigure nameFigure; nameCompartment.add(nameFigure = new TextFigure()); FONT_BOLD.set(nameFigure, true); nameFigure.setEditable(false); nameFigure.setAttributeEnabled(FONT_BOLD, false); TextFigure durationFigure; attributeCompartment.add(durationFigure = new TextFigure()); FONT_BOLD.set(durationFigure, true); durationFigure.setEditable(false); durationFigure.setText("0"); durationFigure.setAttributeEnabled(FONT_BOLD, false); TextFigure startTimeFigure; attributeCompartment.add(startTimeFigure = new TextFigure()); startTimeFigure.setEditable(false); startTimeFigure.setText("0"); startTimeFigure.setAttributeEnabled(FONT_BOLD, false); applyAttributes(this); setAttributeEnabled(STROKE_DASHES, false); ResourceBundleUtil labels = ResourceBundleUtil.getBundle("org.yccheok.jstock.data.Labels"); setName(labels.getString("operatorDefaultName")); createConnectors(); } private void createConnectors() { connectors = new LinkedList<AbstractConnector>(); final Operator _operator = this.getOperator(); final int numOfInputConnector = _operator.getNumOfInputConnector(); final int numOfOutputConnector = _operator.getNumOfOutputConnector(); final double inputStep = 1.0 / (double) (numOfInputConnector << 1); final double outputStep = 1.0 / (double) (numOfOutputConnector << 1); // Create input connectors first. for (int i = 0; i < numOfInputConnector; i++) { connectors.add( new InputConnector(this, new RelativeLocator(0, inputStep + inputStep * (double) i * 2.0), i)); } // Follow by output connectors. for (int i = 0; i < numOfOutputConnector; i++) { connectors.add(new OutputConnector(this, new RelativeLocator(1, outputStep + outputStep * (double) i * 2.0), i)); } } @Override public Collection<Handle> createHandles(int detailLevel) { java.util.List<Handle> handles = new LinkedList<Handle>(); if (detailLevel == 0) { handles.add(new MoveHandle(this, RelativeLocator.northWest())); handles.add(new MoveHandle(this, RelativeLocator.northEast())); handles.add(new MoveHandle(this, RelativeLocator.southWest())); handles.add(new MoveHandle(this, RelativeLocator.southEast())); final Operator _operator = this.getOperator(); final int numOfInputConnector = _operator.getNumOfInputConnector(); final int numOfOutputConnector = _operator.getNumOfOutputConnector(); assert ((numOfInputConnector + numOfOutputConnector) == connectors.size()); // The connectors iteration sequence, is highly dependent on implementation // of createConnectors method. int connectorIndex = 0; for (int index = 0; index < numOfInputConnector; index++, connectorIndex++) { final Class type = _operator.getInputClass(index); final org.jhotdraw.draw.Connector c = connectors.get(connectorIndex); ConnectorHandle connectorHandle = new ConnectorHandle(c, new DependencyFigure()); connectorHandle.setToolTipText(type.getSimpleName()); handles.add(connectorHandle); } for (int index = 0; index < numOfOutputConnector; index++, connectorIndex++) { final Class type = _operator.getOutputClass(index); final org.jhotdraw.draw.Connector c = connectors.get(connectorIndex); ConnectorHandle connectorHandle = new ConnectorHandle(c, new DependencyFigure()); connectorHandle.setToolTipText(type.getSimpleName()); handles.add(connectorHandle); } } return handles; } public void setName(String newValue) { getNameFigure().willChange(); getNameFigure().setText(newValue); getNameFigure().changed(); } public String getName() { return getNameFigure().getText(); } public void setAttribute(String attribute) { getAttributeFigure().willChange(); getAttributeFigure().setText(attribute); getAttributeFigure().changed(); } public String getAttribute() { return getAttributeFigure().getText(); } public void setValue(String value) { getValueFigure().willChange(); getValueFigure().setText(value); getValueFigure().changed(); } public String getValue() { return getValueFigure().getText(); } @Override public org.jhotdraw.draw.Connector findConnector(Point2D.Double p, ConnectionFigure figure) { // return closest connector double min = Double.MAX_VALUE; org.jhotdraw.draw.Connector closest = null; for (org.jhotdraw.draw.Connector c : connectors) { Point2D.Double p2 = Geom.center(c.getBounds()); double d = Geom.length2(p.x, p.y, p2.x, p2.y); if (d < min) { min = d; closest = c; } } return closest; } @Override public org.jhotdraw.draw.Connector findCompatibleConnector(org.jhotdraw.draw.Connector c, boolean isStart) { return connectors.getFirst(); } private TextFigure getNameFigure() { return (TextFigure) ((ListFigure) getChild(0)).getChild(0); } private TextFigure getAttributeFigure() { return (TextFigure) ((ListFigure) getChild(2)).getChild(0); } private TextFigure getValueFigure() { return (TextFigure) ((ListFigure) getChild(2)).getChild(1); } @SuppressWarnings("unchecked") private void applyAttributes(Figure f) { Map<AttributeKey, Object> attr = ((AbstractAttributedFigure) getPresentationFigure()).getAttributes(); for (Map.Entry<AttributeKey, Object> entry : attr.entrySet()) { f.setAttribute(entry.getKey(), entry.getValue()); } } @Override public OperatorFigure clone() { throw new java.lang.UnsupportedOperationException(); } @Override public void read(DOMInput in) throws IOException { double x = in.getAttribute("x", 0d); double y = in.getAttribute("y", 0d); double w = in.getAttribute("w", 0d); double h = in.getAttribute("h", 0d); setBounds(new Point2D.Double(x, y), new Point2D.Double(x + w, y + h)); readAttributes(in); in.openElement("model"); in.openElement("name"); setName((String) in.readObject()); in.closeElement(); in.openElement("attribute"); setAttribute((String) in.readObject()); in.closeElement(); in.openElement("value"); setValue((String) in.readObject()); in.closeElement(); in.openElement("connectors"); connectors.clear(); final int size = in.getElementCount(); for (int i = 0; i < size; i++) { final AbstractConnector c = (AbstractConnector) in.readObject(i); connectors.add(c); } in.closeElement(); in.closeElement(); } @Override public void write(DOMOutput out) throws IOException { Rectangle2D.Double r = getBounds(); out.addAttribute("x", r.x); out.addAttribute("y", r.y); writeAttributes(out); out.openElement("model"); out.openElement("name"); out.writeObject(getName()); out.closeElement(); out.openElement("attribute"); out.writeObject(getAttribute()); out.closeElement(); out.openElement("value"); out.writeObject(getValue()); out.closeElement(); out.openElement("connectors"); for (AbstractConnector child : connectors) out.writeObject(child); out.closeElement(); out.closeElement(); } public int getLayer() { return 0; } public String toString() { return "OperatorFigure#" + hashCode() + " " + getName() + " " + getAttribute() + " " + getValue(); } public void addNotify(Drawing d) { super.addNotify(d); System.out.println(this + " addNotify"); } public void removeNotify(Drawing d) { super.removeNotify(d); System.out.println(this + " removeNotify"); } public Operator getOperator() { return operator; } public void setOperator(Operator operator) { this.operator = operator; } public void propertyChange(java.beans.PropertyChangeEvent propertyChangeEvent) { if (propertyChangeEvent.getPropertyName().equals("value")) { this.setValue("" + propertyChangeEvent.getNewValue()); } else if (propertyChangeEvent.getPropertyName().equals("attribute")) { this.setAttribute("" + propertyChangeEvent.getNewValue()); } else { log.error("Unknown property change : " + propertyChangeEvent.getPropertyName()); } } private static final Log log = LogFactory.getLog(OperatorFigure.class); }