Application: gvSIG desktop » Library: org.gvsig.tools

package org.gvsig.tools.swing.impl.task;

import java.awt.Dimension;

import java.awt.FlowLayout;

import java.awt.LayoutManager;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.net.URL;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JComponent;

import javax.swing.JLabel;

import javax.swing.JProgressBar;

import javax.swing.SwingUtilities;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.observer.Observable;

import org.gvsig.tools.observer.Observer;

import org.gvsig.tools.swing.api.ToolsSwingLocator;

import org.gvsig.tools.swing.api.task.JTasksStatus;

import org.gvsig.tools.swing.api.task.JTasksStatusList;

import org.gvsig.tools.swing.api.windowmanager.WindowManager;

import org.gvsig.tools.task.TaskStatus;

import org.gvsig.tools.task.TaskStatusManager;

public class DefaultJTasksStatus extends JTasksStatus implements Observer {

        /**

         * 

         */

        private static final long serialVersionUID = 245436792193991920L;

        private TaskStatusManager manager = null;

        private JLabel label = null;

        private JProgressBar progressBar = null;

        private JButton showAllTaskStatusButton = null;

        public DefaultJTasksStatus() {

                this(ToolsLocator.getTaskStatusManager());

        }

        public DefaultJTasksStatus(TaskStatusManager manager) {

                this.bind(manager);

                this.createComponents();

        }

        public JComponent asJComponent() {

                return this;

        }

        public void bind(TaskStatusManager manager) {

                if( this.manager!=null ) {

                        this.manager.deleteObserver(this);

                }

                this.manager = manager;

                if( this.manager!= null ) {

                        this.manager.addObserver(this);

                }

        }

        public Dimension getPreferredSize() {

                Dimension d = super.getPreferredSize();

                return new Dimension( 270, d.height);

        }

        private void createComponents() {

                this.label = new JLabel();

                this.label.setPreferredSize( new Dimension( 200, 16));

                this.progressBar = new JProgressBar(1,100);

                this.progressBar.setPreferredSize(new Dimension( 40, 10));

                this.progressBar.setIndeterminate(true);

                this.progressBar.setBorderPainted(true);

                this.progressBar.setVisible(false);

                this.showAllTaskStatusButton = new JButton();

                this.showAllTaskStatusButton.setPreferredSize( new Dimension(16, 16));

                this.showAllTaskStatusButton.setBorderPainted(false);

                this.showAllTaskStatusButton.setIcon( this.getIcon("showAllTaskStatusButton.png"));

                this.showAllTaskStatusButton.setVisible(false);

                this.showAllTaskStatusButton.addActionListener(new ActionListener() {

                        public void actionPerformed(ActionEvent arg0) {

                                JTasksStatusList dialog = ToolsSwingLocator.getTaskStatusSwingManager().createJTasksStatusList(manager);

                                WindowManager wm = ToolsSwingLocator.getWindowManager();

                                wm.showWindow(dialog, "Tasks",WindowManager.MODE.TOOL);

                        }

                });

                LayoutManager layout = new FlowLayout();

                this.setLayout(layout);

                this.add(this.label);

                this.add(this.progressBar);

                this.add(this.showAllTaskStatusButton);

        }

        private ImageIcon getIcon(String name) {

                URL iconurl = this.getClass().getResource(name);

                if( iconurl == null ) {

                        return new ImageIcon();

                }

                return new ImageIcon(iconurl);

        }

        public void update(final Observable observable, final Object notification) {

                if(notification != null && !(notification instanceof TaskStatus) ) {

                        return;

                }

                if( !SwingUtilities.isEventDispatchThread()) {

                        SwingUtilities.invokeLater( new Runnable() {

                                public void run() {

                                        update(observable, notification);

                                }

                        });

                        return;

                }

                TaskStatus taskStatus = (TaskStatus) notification;

                if( taskStatus == null ) {

                        taskStatus = this.manager.getRunningTaskStatusMostRecent();

                        if( taskStatus == null ) {

                                this.label.setText("");

                                this.progressBar.setVisible(false);

                                this.showAllTaskStatusButton.setVisible(false);

                                return;

                        }

                }

                if( !taskStatus.isRunning() ) {

                        TaskStatus taskStatus2 = this.manager.getRunningTaskStatusMostRecent();

                        if( taskStatus2 == null ) {

                                // Not running task

                                this.label.setText("");

                                this.progressBar.setVisible(false);

                                this.showAllTaskStatusButton.setVisible(false);

                                return;

                        } else {

                                taskStatus = taskStatus2;

                        }

                 }

                 String label = taskStatus.getLabel();

                if( label == null || label.trim().equals("") ) {

                        label = taskStatus.getTitle();

                } else {

                        label = taskStatus.getTitle() + ": " + label;

                }

                this.label.setText( label );

                this.progressBar.setIndeterminate( taskStatus.isIndeterminate() );

                this.progressBar.setValue( taskStatus.getCompleted() );

                if( !this.progressBar.isVisible() ) {

                        this.progressBar.setVisible(true);

                }

                if( !this.showAllTaskStatusButton.isVisible() ) {

                        this.showAllTaskStatusButton.setVisible(true);

                }

        }

}