ganttdisplay.java

Owing to the applet Gantt chart source yard, already Chinese melt, Gantt chart can demonstrate a Chi

/**
 *   Copyright 2004 Carlos Silva A.
 * 
 *   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 jgantt.view;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Image;
import java.awt.Insets;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.net.URL;
import java.util.Iterator;

import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JPanel;
import javax.swing.JSplitPane;

import jgantt.Messages;
import jgantt.model.Project;
import jgantt.model.ProjectChange;
import jgantt.model.ProjectListener;
import jgantt.view.adapters.ProjectViewModel;
import jgantt.view.adapters.ProjectViewModelChange;
import jgantt.view.adapters.ProjectViewModelListener;
import jgantt.view.gantt.GanttGraph;
import jgantt.view.tree.TaskTree;

public class GanttDisplay extends JPanel implements ProjectListener,
		ProjectViewModelListener {
	private static final long serialVersionUID = 3257283630241165369L;

	TaskTree tasksTree;

	GanttGraph ganttGraph;

	JComboBox snapShotList;

	public ProjectViewModel pvModel;

	public Project project;

	public boolean isFocusTraversable() {
		return false;
	}

	/**
	 * Constructor for GanttDisplay
	 */

	public GanttDisplay(ProjectViewModel projectViewModel) {
		super();
		pvModel = projectViewModel;
		pvModel.addListener(this);

		setLayout(new BorderLayout());

		tasksTree = new TaskTree(pvModel);
		ganttGraph = new GanttGraph(pvModel);

		JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,
				tasksTree, ganttGraph);
		// splitPane.setDividerSize(12);
		splitPane.setOneTouchExpandable(true);
		splitPane.setDividerLocation(280);

		add(splitPane, BorderLayout.CENTER);

		JPanel buttonPane = new JPanel();
		buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.X_AXIS));

		buttonPane.add(createButton(null, GanttActionListener.CMD_NEW, Messages
				.getString("GanttDisplay.newproject.hint"), Messages
				.getString("GanttDisplay.newproject.img")));
		buttonPane.add(createButton(null, GanttActionListener.CMD_OPEN,
				Messages.getString("GanttDisplay.open.hint"), Messages
						.getString("GanttDisplay.open.img")));

		buttonPane.add(Box.createRigidArea(new Dimension(10, 10)));
		buttonPane.add(createButton(null, GanttActionListener.CMD_SAVE,
				Messages.getString("GanttDisplay.save.hint"), Messages
						.getString("GanttDisplay.save.img")));
		buttonPane.add(createButton(null, GanttActionListener.CMD_SAVE_AS,
				Messages.getString("GanttDisplay.saveas.hint"), Messages
						.getString("GanttDisplay.saveas.img")));

		buttonPane.add(Box.createRigidArea(new Dimension(10, 10)));
		buttonPane.add(createButton(null, GanttActionListener.CMD_INSERT_TASK,
				Messages.getString("GanttDisplay.insert.hint"), Messages
						.getString("GanttDisplay.insert.img")));
		buttonPane.add(createButton(null, GanttActionListener.CMD_APPEND_TASK,
				Messages.getString("GanttDisplay.append.hint"), Messages
						.getString("GanttDisplay.append.img")));
		buttonPane.add(createButton(null, GanttActionListener.CMD_DELETE_TASK,
				Messages.getString("GanttDisplay.delete.hint"), Messages
						.getString("GanttDisplay.delete.img")));

		buttonPane.add(Box.createRigidArea(new Dimension(10, 10)));
		buttonPane.add(createButton(null, "indentl", Messages
				.getString("GanttDisplay.indentLeft.hint"), Messages
				.getString("GanttDisplay.indentLeft.img")));
		buttonPane.add(createButton(null, "indentr", Messages
				.getString("GanttDisplay.indentRight.hint"), Messages
				.getString("GanttDisplay.indentRight.img")));

		buttonPane.add(Box.createRigidArea(new Dimension(5, 5)));
		buttonPane.add(createButton(null, "movedn", Messages
				.getString("GanttDisplay.moveDown.hint"), Messages
				.getString("GanttDisplay.moveDown.img")));
		buttonPane.add(createButton(null, "moveup", Messages
				.getString("GanttDisplay.moveUp.hint"), Messages
				.getString("GanttDisplay.moveUp.img")));

		buttonPane.add(Box.createRigidArea(new Dimension(5, 5)));
		buttonPane.add(createButton(null,
				GanttActionListener.CMD_EDIT_ASIGNATIONS, Messages
						.getString("GanttDisplay.asignments.hint"), Messages
						.getString("GanttDisplay.asignments.img")));

		snapShotList = new JComboBox();
		snapShotList.addItemListener(new SnapItemListener());
		snapShotList.setFont(new java.awt.Font("宋体", Font.BOLD, 14)); 

		buttonPane.add(snapShotList);
		

		add(buttonPane, BorderLayout.NORTH);

		assignViewModel(pvModel);
	}

	/**
	 * Genera un boton para ser anexado al panel
	 * 
	 * @param label
	 * @param action
	 * @param tooltip
	 * @param imgFn
	 * @return
	 */
	public JButton createButton(String label, String action, String tooltip,
			String imgFn) {
		try {
			URL res = getClass().getClassLoader().getResource(imgFn);
			Image img = Toolkit.getDefaultToolkit().getImage(res);
			MediaTracker m = new MediaTracker(this);
			m.addImage(img, 0);
			m.waitForAll();
			ImageIcon icon = new ImageIcon(img);
			JButton b = new JButton(label, icon);
			b.setActionCommand(action);
			b.setToolTipText(tooltip);
			// b.setContentAreaFilled(false);
			b.setMargin(new Insets(0, 0, 0, 0));
			// Dimension d = new Dimension(26,26);
			// b.setPreferredSize(d);
			// b.setSize(d);
			// b.setMinimumSize(d);
			b.addActionListener(pvModel.getMainActionListener());
			return b;
		} catch (Exception e) {
			e.printStackTrace();
			JButton b = new JButton(label);
			b.setActionCommand(action);
			b.setToolTipText(tooltip);
			b.setContentAreaFilled(false);
			b.setMargin(new Insets(0, 0, 0, 0));
			b.addActionListener(pvModel.getMainActionListener());
			return b;
		}
	}

	/**
	 * Carga una imagen desde el paquete de la clase
	 * 
	 * @param imgName
	 * @return Image
	 */
	Image loadImage(String imgName) {
		URL imgURL = getClass().getResource(imgName);
		Toolkit tk = Toolkit.getDefaultToolkit();
		Image img = null;
		try {
			MediaTracker m = new MediaTracker(this);
			img = tk.getImage(imgURL);
			m.addImage(img, 0);
			m.waitForAll();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return img;
	}

	public JComponent getTaskTree() {
		return tasksTree;
	}

	public ProjectViewModel getProjectViewModel() {
		return pvModel;
	}

	public Object getSelectedObject() {
		return ganttGraph.getViewer().lastSelectedObject();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see jgantt.view.adapters.ProjectViewModelListener#viewModelChanged(jgantt.view.adapters.ProjectViewModelChange)
	 */
	public void viewModelChanged(ProjectViewModelChange c) {
		if (c.getId() == ProjectViewModelChange.NEW_PROJECT_LOADED)
			assignViewModel(c.getProjectViewModel());
	}

	public void assignViewModel(ProjectViewModel pvm) {
		if (project != null)
			project.removeListener(this);
		project = pvm.getProject();
		project.addListener(this);
		pvModel = pvm;
		loadSnapShots(pvm.getProject());
	}

	public void loadSnapShots(Project p) {
		snapShotList.removeAllItems();
		snapShotList.addItem("Snapshot");
		for (Iterator i = p.getSnapshots().iterator(); i.hasNext();) {
			Project.SnapShot ss = (Project.SnapShot) i.next();
			snapShotList.addItem(ss);
		}
	}

	class SnapItemListener implements ItemListener {
		public void itemStateChanged(ItemEvent ev) {
			if (ev.getStateChange() == ItemEvent.SELECTED) {
				Object item = ev.getItem();
				if (item instanceof String)
					pvModel.setCurrentSnapShot(null);
				else {
					Project.SnapShot ss = (Project.SnapShot) item;
					pvModel.setCurrentSnapShot(ss.date);
				}
			}
		}
	}

	public void projectChanged(ProjectChange change) {
		switch (change.getId()) {
		case ProjectChange.SNAPSHOT_ADDED:
		case ProjectChange.SNAPSHOT_REMOVED:
			loadSnapShots(pvModel.getProject());
			break;
		default:
			;
		}
	}

}