/*
* $Id: RupsController.java 3244 2008-04-13 23:27:35Z xlv $
*
* Copyright 2007 Bruno Lowagie.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.lowagie.rups.controller;
import java.awt.Component;
import java.awt.Dimension;
import java.io.File;
import java.io.IOException;
import java.util.Observable;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTabbedPane;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import com.lowagie.rups.io.FileChooserAction;
import com.lowagie.rups.io.FileCloseAction;
import com.lowagie.rups.model.PdfFile;
import com.lowagie.rups.view.Console;
import com.lowagie.rups.view.PageNavigationListener;
import com.lowagie.rups.view.RupsMenuBar;
import com.lowagie.rups.view.itext.treenodes.PdfObjectTreeNode;
import com.lowagie.rups.view.itext.treenodes.PdfTrailerTreeNode;
import com.lowagie.text.DocumentException;
/**
* This class controls all the GUI components that are shown in
* the Trapeze application: the menu bar, the panels,...
*/
public class RupsController extends Observable
implements TreeSelectionListener, PageNavigationListener {
// member variables
/* file */
/** The Pdf file that is currently open in the application. */
protected PdfFile pdfFile;
/* main components */
/** The JMenuBar for the Trapeze application. */
protected RupsMenuBar menuBar;
/** Contains all other components: the page panel, the outline tree, etc. */
protected JSplitPane masterComponent;
/* Other controllers */
/** Object with the GUI components for SUN's PDF Renderer. */
protected PdfRendererController renderer;
/** Object with the GUI components for iText. */
protected PdfReaderController reader;
// constructor
/**
* Constructs the GUI components of the Trapeze application.
*/
public RupsController(Dimension dimension) {
// creating components and controllers
menuBar = new RupsMenuBar(this);
addObserver(menuBar);
Console console = Console.getInstance();
addObserver(console);
renderer = new PdfRendererController(this);
addObserver(renderer);
reader = new PdfReaderController(this, this);
addObserver(reader);
// creating the master component
masterComponent = new JSplitPane();
masterComponent.setOrientation(JSplitPane.VERTICAL_SPLIT);
masterComponent.setDividerLocation((int)(dimension.getHeight() * .70));
masterComponent.setDividerSize(2);
JSplitPane content = new JSplitPane();
masterComponent.add(content, JSplitPane.TOP);
JSplitPane info = new JSplitPane();
masterComponent.add(info, JSplitPane.BOTTOM);
content.setOrientation(JSplitPane.HORIZONTAL_SPLIT);
content.setDividerLocation((int)(dimension.getWidth() * .75));
content.setDividerSize(1);
JSplitPane viewers = new JSplitPane();
content.add(viewers, JSplitPane.LEFT);
content.add(reader.getNavigationTabs(), JSplitPane.RIGHT);
viewers.setOrientation(JSplitPane.HORIZONTAL_SPLIT);
viewers.setDividerLocation((int)(dimension.getWidth() * .35));
viewers.setDividerSize(1);
viewers.add(renderer, JSplitPane.RIGHT);
viewers.add(RupsController.getScrollPane(reader.getPdfTree()), JSplitPane.LEFT);
info.setDividerLocation((int) (dimension.getWidth() * .3));
info.setDividerSize(1);
info.add(reader.getObjectPanel(), JSplitPane.LEFT);
JTabbedPane editorPane = reader.getEditorTabs();
JScrollPane cons = RupsController.getScrollPane(console.getTextArea());
editorPane.addTab("Console", null, cons, "Console window (System.out/System.err)");
editorPane.setSelectedComponent(cons);
info.add(editorPane, JSplitPane.RIGHT);
}
/** Getter for the menubar. */
public RupsMenuBar getMenuBar() {
return menuBar;
}
/** Getter for the master component. */
public Component getMasterComponent() {
return masterComponent;
}
// Observable
/**
* @see java.util.Observable#notifyObservers(java.lang.Object)
*/
@Override
public void notifyObservers(Object obj) {
if (obj instanceof FileChooserAction) {
File file = ((FileChooserAction)obj).getFile();
try {
pdfFile = new PdfFile(file);
setChanged();
super.notifyObservers(RupsMenuBar.OPEN);
renderer.startPageLoader(pdfFile);
reader.startObjectLoader(pdfFile);
}
catch(IOException ioe) {
JOptionPane.showMessageDialog(masterComponent, ioe.getMessage(), "Dialog", JOptionPane.ERROR_MESSAGE);
}
catch (DocumentException de) {
JOptionPane.showMessageDialog(masterComponent, de.getMessage(), "Dialog", JOptionPane.ERROR_MESSAGE);
}
return;
}
if (obj instanceof FileCloseAction) {
pdfFile = null;
setChanged();
super.notifyObservers(RupsMenuBar.CLOSE);
return;
}
}
// tree selection
/**
* @see javax.swing.event.TreeSelectionListener#valueChanged(javax.swing.event.TreeSelectionEvent)
*/
public void valueChanged(TreeSelectionEvent evt) {
Object selectednode = reader.getPdfTree().getLastSelectedPathComponent();
if (selectednode instanceof PdfTrailerTreeNode) {
menuBar.update(this, RupsMenuBar.FILE_MENU);
return;
}
if (selectednode instanceof PdfObjectTreeNode) {
reader.update(this, selectednode);
}
}
// page navigation
/**
* @see com.lowagie.rups.view.PageNavigationListener#getCurrentPageNumber()
*/
public int getCurrentPageNumber() {
return renderer.getCurrentPageNumber();
}
/**
* @see com.lowagie.rups.view.PageNavigationListener#getTotalNumberOfPages()
*/
public int getTotalNumberOfPages() {
return renderer.getTotalNumberOfPages();
}
/**
* @see com.lowagie.rups.view.PageNavigationListener#gotoFirstPage()
*/
public int gotoFirstPage() {
return gotoPage(1);
}
/**
* @see com.lowagie.rups.view.PageNavigationListener#gotoPreviousPage()
*/
public int gotoPreviousPage() {
return gotoPage(getCurrentPageNumber() - 1);
}
/**
* @see com.lowagie.rups.view.PageNavigationListener#gotoPage(int)
*/
public int gotoPage(int pageNumber) {
pageNumber = renderer.gotoPage(pageNumber);
reader.gotoPage(pageNumber);
return pageNumber;
}
/**
* @see com.lowagie.rups.view.PageNavigationListener#gotoNextPage()
*/
public int gotoNextPage() {
return gotoPage(getCurrentPageNumber() + 1);
}
/**
* @see com.lowagie.rups.view.PageNavigationListener#gotoLastPage()
*/
public int gotoLastPage() {
return gotoPage(getTotalNumberOfPages());
}
/**
* Adds a component to a ScrollPane.
* @param component the component that has to be scrollable
* @return a JScrollPane
* @since 2.1.0
*/
public static JScrollPane getScrollPane(Component component) {
JScrollPane scrollpane = new JScrollPane();
scrollpane.setViewportView(component);
return scrollpane;
}
}