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OptaPlanner solves planning problems.
This lightweight, embeddable planning engine implements powerful and scalable algorithms
to optimize business resource scheduling and planning.
This module contains the examples which demonstrate how to use it in a normal Java application.
/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.optaplanner.examples.taskassigning.swingui;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.swing.AbstractAction;
import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JViewport;
import javax.swing.Scrollable;
import javax.swing.SwingConstants;
import org.optaplanner.examples.common.swingui.SolutionPanel;
import org.optaplanner.examples.common.swingui.components.LabeledComboBoxRenderer;
import org.optaplanner.examples.taskassigning.domain.Employee;
import org.optaplanner.examples.taskassigning.domain.Skill;
import org.optaplanner.examples.taskassigning.domain.Task;
import org.optaplanner.examples.taskassigning.domain.TaskAssigningSolution;
import org.optaplanner.examples.taskassigning.domain.TaskOrEmployee;
import org.optaplanner.swing.impl.SwingUtils;
import org.optaplanner.swing.impl.TangoColorFactory;
public class TaskOverviewPanel extends JPanel implements Scrollable {
public static final int HEADER_ROW_HEIGHT = 50;
public static final int HEADER_COLUMN_WIDTH = 150;
public static final int ROW_HEIGHT = 50;
public static final int TIME_COLUMN_WIDTH = 60;
private final TaskAssigningPanel taskAssigningPanel;
private final ImageIcon[] affinityIcons;
private final ImageIcon[] priorityIcons;
private TangoColorFactory skillColorFactory;
private int consumedDuration = 0;
public TaskOverviewPanel(TaskAssigningPanel taskAssigningPanel) {
this.taskAssigningPanel = taskAssigningPanel;
affinityIcons = new ImageIcon[] {
new ImageIcon(getClass().getResource("affinityNone.png")),
new ImageIcon(getClass().getResource("affinityLow.png")),
new ImageIcon(getClass().getResource("affinityMedium.png")),
new ImageIcon(getClass().getResource("affinityHigh.png"))
};
priorityIcons = new ImageIcon[] {
new ImageIcon(getClass().getResource("priorityMinor.png")),
new ImageIcon(getClass().getResource("priorityMajor.png")),
new ImageIcon(getClass().getResource("priorityCritical.png"))
};
setLayout(null);
setMinimumSize(new Dimension(HEADER_COLUMN_WIDTH * 2, ROW_HEIGHT * 8));
}
public void resetPanel(TaskAssigningSolution taskAssigningSolution) {
removeAll();
skillColorFactory = new TangoColorFactory();
List employeeList = taskAssigningSolution.getEmployeeList();
Map employeeIndexMap = new HashMap<>(employeeList.size());
int employeeIndex = 0;
for (Employee employee : employeeList) {
JLabel employeeLabel = new JLabel(employee.getLabel(), new TaskOrEmployeeIcon(employee), SwingConstants.LEFT);
employeeLabel.setOpaque(true);
employeeLabel.setToolTipText(employee.getToolText());
employeeLabel.setLocation(0, HEADER_ROW_HEIGHT + employeeIndex * ROW_HEIGHT);
employeeLabel.setSize(HEADER_COLUMN_WIDTH, ROW_HEIGHT);
employeeLabel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
add(employeeLabel);
employeeIndexMap.put(employee, employeeIndex);
employeeIndex++;
}
int panelWidth = HEADER_COLUMN_WIDTH;
int unassignedIndex = employeeList.size();
for (Task task : taskAssigningSolution.getTaskList()) {
JButton taskButton = createTaskButton(task);
int x;
int y;
if (task.getEmployee() != null) {
x = HEADER_COLUMN_WIDTH + task.getStartTime();
y = HEADER_ROW_HEIGHT + employeeIndexMap.get(task.getEmployee()) * ROW_HEIGHT;
} else {
x = HEADER_COLUMN_WIDTH + task.getReadyTime();
y = HEADER_ROW_HEIGHT + unassignedIndex * ROW_HEIGHT;
unassignedIndex++;
}
if (x + taskButton.getWidth() > panelWidth) {
panelWidth = x + taskButton.getWidth();
}
taskButton.setLocation(x, y);
add(taskButton);
}
for (int x = HEADER_COLUMN_WIDTH; x < panelWidth; x += TIME_COLUMN_WIDTH) {
// Use 10 hours per day
int minutes = (x - HEADER_COLUMN_WIDTH) % (10 * 60);
// Start at 8:00
int hours = 8 + (minutes / 60);
minutes %= 60;
JLabel timeLabel = new JLabel((hours < 10 ? "0" : "") + hours + ":" + (minutes < 10 ? "0" : "") + minutes);
timeLabel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
timeLabel.setLocation(x, 0);
timeLabel.setSize(TIME_COLUMN_WIDTH, ROW_HEIGHT);
add(timeLabel);
}
if ((panelWidth - HEADER_COLUMN_WIDTH) % TIME_COLUMN_WIDTH != 0) {
panelWidth = panelWidth - ((panelWidth - HEADER_COLUMN_WIDTH) % TIME_COLUMN_WIDTH) + TIME_COLUMN_WIDTH;
}
Dimension size = new Dimension(panelWidth, HEADER_ROW_HEIGHT + unassignedIndex * ROW_HEIGHT);
setSize(size);
setPreferredSize(size);
repaint();
}
public void setConsumedDuration(int consumedDuration) {
this.consumedDuration = consumedDuration;
repaint();
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(TangoColorFactory.ALUMINIUM_2);
int lineX = HEADER_COLUMN_WIDTH + consumedDuration;
g.fillRect(HEADER_COLUMN_WIDTH, 0, lineX, getHeight());
g.setColor(Color.WHITE);
g.fillRect(lineX, 0, getWidth(), getHeight());
}
private JButton createTaskButton(Task task) {
JButton taskButton = SwingUtils.makeSmallButton(new JButton(new TaskAction(task)));
taskButton.setBackground(task.isPinned() ? TangoColorFactory.ALUMINIUM_3 : TangoColorFactory.ALUMINIUM_1);
taskButton.setHorizontalTextPosition(SwingConstants.CENTER);
taskButton.setVerticalTextPosition(SwingConstants.TOP);
taskButton.setSize(task.getDuration(), ROW_HEIGHT);
return taskButton;
}
private class TaskAction extends AbstractAction {
private final Task task;
public TaskAction(Task task) {
super(task.getCode(), new TaskOrEmployeeIcon(task));
this.task = task;
// Tooltip
putValue(SHORT_DESCRIPTION, task.getToolText());
}
@Override
public void actionPerformed(ActionEvent e) {
JPanel listFieldsPanel = new JPanel(new GridLayout(2, 1));
List taskOrEmployeeList = new ArrayList<>();
taskOrEmployeeList.addAll(taskAssigningPanel.getSolution().getEmployeeList());
taskOrEmployeeList.addAll(taskAssigningPanel.getSolution().getTaskList());
// Add 1 to array size to add null, which makes the entity unassigned
JComboBox TaskOrEmployeeListField = new JComboBox(
taskOrEmployeeList.toArray(new Object[taskOrEmployeeList.size() + 1]));
LabeledComboBoxRenderer.applyToComboBox(TaskOrEmployeeListField);
TaskOrEmployeeListField.setSelectedItem(task.getPreviousTaskOrEmployee());
listFieldsPanel.add(TaskOrEmployeeListField);
int result = JOptionPane.showConfirmDialog(TaskOverviewPanel.this.getRootPane(),
listFieldsPanel, "Select previous task or employee for " + task.getLabel(),
JOptionPane.OK_CANCEL_OPTION);
if (result == JOptionPane.OK_OPTION) {
TaskOrEmployee toTaskOrEmployee = (TaskOrEmployee) TaskOrEmployeeListField.getSelectedItem();
taskAssigningPanel.getSolutionBusiness().doChangeMove(task, "previousTaskOrEmployee", toTaskOrEmployee);
taskAssigningPanel.getSolverAndPersistenceFrame().resetScreen();
}
}
}
@Override
public Dimension getPreferredScrollableViewportSize() {
return SolutionPanel.PREFERRED_SCROLLABLE_VIEWPORT_SIZE;
}
@Override
public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) {
return 20;
}
@Override
public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) {
return 20;
}
@Override
public boolean getScrollableTracksViewportWidth() {
if (getParent() instanceof JViewport) {
return (((JViewport) getParent()).getWidth() > getPreferredSize().width);
}
return false;
}
@Override
public boolean getScrollableTracksViewportHeight() {
if (getParent() instanceof JViewport) {
return (((JViewport) getParent()).getHeight() > getPreferredSize().height);
}
return false;
}
private class TaskOrEmployeeIcon implements Icon {
private static final int SKILL_ICON_WIDTH = 8;
private static final int SKILL_ICON_HEIGHT = 16;
private final ImageIcon priorityIcon;
private final List skillColorList;
private final ImageIcon affinityIcon;
private TaskOrEmployeeIcon(Task task) {
priorityIcon = priorityIcons[task.getPriority().ordinal()];
List skillList = task.getTaskType().getRequiredSkillList();
skillColorList = new ArrayList<>(skillList.size());
for (Skill skill : skillList) {
skillColorList.add(skillColorFactory.pickColor(skill));
}
affinityIcon = affinityIcons[task.getAffinity().ordinal()];
}
private TaskOrEmployeeIcon(Employee employee) {
priorityIcon = null;
Set skillSet = employee.getSkillSet();
skillColorList = new ArrayList<>(skillSet.size());
for (Skill skill : skillSet) {
skillColorList.add(skillColorFactory.pickColor(skill));
}
affinityIcon = null;
}
@Override
public int getIconWidth() {
int width = 0;
if (priorityIcon != null) {
width += priorityIcon.getIconWidth();
}
width += skillColorList.size() * SKILL_ICON_WIDTH;
if (affinityIcon != null) {
width += affinityIcon.getIconWidth();
}
return width;
}
@Override
public int getIconHeight() {
int height = SKILL_ICON_HEIGHT;
if (priorityIcon != null && priorityIcon.getIconHeight() > height) {
height = priorityIcon.getIconHeight();
}
if (affinityIcon != null && affinityIcon.getIconHeight() > height) {
height = affinityIcon.getIconHeight();
}
return height;
}
@Override
public void paintIcon(Component c, Graphics g, int x, int y) {
int innerX = x;
if (priorityIcon != null) {
priorityIcon.paintIcon(c, g, innerX, y);
innerX += priorityIcon.getIconWidth();
}
for (Color skillColor : skillColorList) {
g.setColor(skillColor);
g.fillRect(innerX + 1, y + 1, SKILL_ICON_WIDTH - 2, SKILL_ICON_HEIGHT - 2);
g.setColor(TangoColorFactory.ALUMINIUM_5);
g.drawRect(innerX + 1, y + 1, SKILL_ICON_WIDTH - 2, SKILL_ICON_HEIGHT - 2);
innerX += SKILL_ICON_WIDTH;
}
if (affinityIcon != null) {
affinityIcon.paintIcon(c, g, innerX, y);
innerX += affinityIcon.getIconWidth();
}
}
}
}