textviewer.java

编辑视频文件

/*
 * File:     TextViewer.java
 * Project:  MPI Linguistic Application
 * Date:     02 May 2007
 *
 * Copyright (C) 2001-2007  Max Planck Institute for Psycholinguistics
 *
 * 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
 */

package mpi.eudico.client.annotator.viewer;

import mpi.eudico.client.annotator.Constants;
import mpi.eudico.client.annotator.ElanLocale;

import mpi.eudico.client.annotator.gui.InlineEditBox;

import mpi.eudico.client.mediacontrol.ControllerEvent;

import mpi.eudico.server.corpora.clom.Annotation;
import mpi.eudico.server.corpora.clom.Tier;

import mpi.eudico.server.corpora.clomimpl.abstr.TierImpl;

import mpi.eudico.server.corpora.util.ACMEditEvent;
import mpi.eudico.server.corpora.util.ACMEditListener;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;

import java.util.Arrays;
import java.util.Enumeration;
import java.util.Vector;

import javax.swing.ButtonGroup;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JComponent;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;
import javax.swing.SwingUtilities;

//import javax.swing.text.DefaultHighlighter;
import javax.swing.text.Highlighter;


/**
 * Viewer for text of a selected tier with highligting where the cursor is.
 * @version Aug 2005 Identity removed
 */
public class TextViewer extends AbstractViewer implements SingleTierViewer,
    ACMEditListener, ActionListener {
    private JMenu fontMenu;
    private ButtonGroup fontSizeBG;
    private int fontSize;
    private JPopupMenu popup;
    private JMenuItem centerMI;
    private JTextArea taText;
    private JScrollPane jspText;
    private TierImpl tier;
    private Vector annotations = new Vector();

    //private int index = 0;
    private long begintime = 0;
    private long endtime = 0;
    private long[] arrTagTimes;
    private int[] arrTagPositions;
    private String tierText = "";
    private Highlighter highlighter;
    private StyledHighlightPainter selectionPainter;
    private StyledHighlightPainter currentPainter;
    private StyledHighlightPainter activeAnnotationPainter;
    private Object selectionHighLightInfo;
    private Object currentHighLightInfo;
    private Object activeHighLightInfo;
    private int indexActiveAnnotationBegin = 0;
    private int indexActiveAnnotationEnd = 0;
    private int indexSelectionBegin = 0;
    private int indexSelectionEnd = 0;
    private int indexMediaTime = 0;
    private boolean bVisDotted; //used for visualization with dots
    private int extraLength; //used for visualization with dots
    private boolean centerVertically = true;

    /** Holds value of property DOCUMENT ME! */
    private final Color transparent;

    /**
     * Constructor
     */
    public TextViewer() {
        bVisDotted = true;
        extraLength = 4;
        transparent = new Color(Constants.SELECTIONCOLOR.getRed(),
                Constants.SELECTIONCOLOR.getGreen(),
                Constants.SELECTIONCOLOR.getBlue(), 0);

        try {
            setLayout(new BorderLayout());

            taText = new JTextArea(4, 10) { //don't eat up any key events
                        protected boolean processKeyBinding(KeyStroke ks,
                            KeyEvent e, int condition, boolean pressed) {
                            return false;
                        }
                    };

            taText.setFont(Constants.DEFAULTFONT);
            fontSize = 12;
            taText.setLineWrap(true);
            taText.setWrapStyleWord(true);
            taText.setForeground(Constants.DEFAULTFOREGROUNDCOLOR);
            taText.setEditable(false);
            taText.addMouseListener(new TextViewerMouseListener(taText));
            taText.addMouseMotionListener(new TextViewerMouseMotionListener());
            taText.getCaret().setSelectionVisible(false);
            taText.setBackground(Constants.DEFAULTBACKGROUNDCOLOR);
            taText.setSelectionColor(taText.getBackground());
            highlighter = taText.getHighlighter();
            selectionPainter = new StyledHighlightPainter(Constants.SELECTIONCOLOR,
                    1, StyledHighlightPainter.FILLED);
            selectionPainter.setVisible(false);
            currentPainter = new StyledHighlightPainter(Constants.CROSSHAIRCOLOR,
                    0);
            currentPainter.setVisible(false);
            activeAnnotationPainter = new StyledHighlightPainter(Constants.ACTIVEANNOTATIONCOLOR,
                    1);
            activeAnnotationPainter.setVisible(false);

            currentHighLightInfo = highlighter.addHighlight(0, 0, currentPainter);
            activeHighLightInfo = highlighter.addHighlight(0, 0,
                    activeAnnotationPainter);
            selectionHighLightInfo = highlighter.addHighlight(0, 0,
                    selectionPainter);

            jspText = new JScrollPane(taText);
            jspText.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
            jspText.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);

            //            jspText.setViewportView(taText);
            add(jspText, BorderLayout.CENTER);

            ///////////////////////////////////////////////////////////////////////
            //
            // Temporary code
            // highlighter.addHighlight in doUpdate gives an error when tabpane is
            // not visible. When not visible (in sync mode) the size of tabpane is
            // set to 0. So check size in doUpdate and if 0 return.
            //
            ///////////////////////////////////////////////////////////////////////
            addComponentListener(new TextViewerComponentListener());

            setVisible(true);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    /**
     * AR notification that the selection has changed method from SelectionUser
     * not implemented in AbstractViewer
     */
    public void updateSelection() {
        doUpdate();
    }

    /**
     * AR heeft dit hier neergezet, zie abstract viewer voor get en set
     * methodes van ActiveAnnotation. Update method from ActiveAnnotationUser
     */
    public void updateActiveAnnotation() {
        doUpdate();
    }

    /**
     * AR heeft dit hier neergezet Er moet nog gepraat worden over wat hier te
     * doen valt
     *
     * @param e DOCUMENT ME!
     */
    public void ACMEdited(ACMEditEvent e) {
        switch (e.getOperation()) {
        case ACMEditEvent.ADD_ANNOTATION_HERE:
        case ACMEditEvent.ADD_ANNOTATION_BEFORE:
        case ACMEditEvent.ADD_ANNOTATION_AFTER:
        case ACMEditEvent.CHANGE_ANNOTATIONS:
        case ACMEditEvent.REMOVE_ANNOTATION:
        case ACMEditEvent.CHANGE_ANNOTATION_TIME:
        case ACMEditEvent.CHANGE_ANNOTATION_VALUE: {
            setTier(getTier());
            doUpdate();
        }
        }
    }

    /**
     * method from ElanLocaleListener not implemented in AbstractViewer
     */
    public void updateLocale() {
        createPopup();
    }

    private void createPopup() {
        popup = new JPopupMenu("");

        fontSizeBG = new ButtonGroup();
        fontMenu = new JMenu(ElanLocale.getString("Menu.View.FontSize"));

        JRadioButtonMenuItem fontRB;

        for (int i = 0; i < Constants.FONT_SIZES.length; i++) {
            fontRB = new JRadioButtonMenuItem(String.valueOf(
                        Constants.FONT_SIZES[i]));
            fontRB.setActionCommand("font" + Constants.FONT_SIZES[i]);

            if (fontSize == Constants.FONT_SIZES[i]) {
                fontRB.setSelected(true);
            }

            fontRB.addActionListener(this);
            fontSizeBG.add(fontRB);
            fontMenu.add(fontRB);
        }

        popup.add(fontMenu);

        popup.addSeparator();

        //add visualization toggle
        JMenuItem menuItem = new JMenuItem(ElanLocale.getString(
                    "TextViewer.ToggleVisualization"));
        menuItem.setActionCommand("TOGGLEVISUALIZATION");
        menuItem.addActionListener(this);
        popup.add(menuItem);

        centerMI = new JCheckBoxMenuItem(ElanLocale.getString(
                    "TextViewer.CenterVertical"));
        centerMI.setSelected(centerVertically);
        centerMI.setActionCommand("centerVert");
        centerMI.addActionListener(this);

        popup.add(centerMI);
    }

    /**
     * DOCUMENT ME!
     *
     * @param e DOCUMENT ME!
     */
    public void actionPerformed(ActionEvent e) {
        String strAction = e.getActionCommand();

        if (strAction.indexOf("font") != -1) {
            int index = strAction.indexOf("font") + 4;

            try {
                fontSize = Integer.parseInt(strAction.substring(index));

                //repaint();
            } catch (Exception ex) {
                ex.printStackTrace();
            }

            //taText.setFont(getFont().deriveFont((float) fontSize));
            taText.setFont(Constants.DEFAULTFONT.deriveFont((float) fontSize));
        } else if (strAction.equals("TOGGLEVISUALIZATION")) {
            bVisDotted = !bVisDotted;
            setTier(getTier());
        } else if (strAction == "centerVert") {
            setCenteredVertically(centerMI.isSelected());
        }
    }

    /**
     * AR notification that some media related event happened method from
     * ControllerListener not implemented in AbstractViewer
     *
     * @param event DOCUMENT ME!
     */
    public void controllerUpdate(ControllerEvent event) {
        doUpdate();
    }

    /**
     * Calculates the position and size of the crosshair painter and requests
     * the text area to scroll the resulting rectangle to be visible in the view.
     * In this calculation the <code>centerVertically</code> value is taken into
     * account.
     */
    private void scrollIfNeeded() {
        try {
            Highlighter.Highlight[] h_arr = highlighter.getHighlights();

            for (int i = 0; i < h_arr.length; i++) {
                if (h_arr[i].getPainter() == currentPainter) {
                    int idx = h_arr[i].getStartOffset();
                    int ide = h_arr[i].getEndOffset();

                    Rectangle rect = taText.modelToView(idx);
                    Rectangle endRect = taText.modelToView(ide);

                    if ((rect == null) || (endRect == null)) {
                        return;
                    }

                    Rectangle union = rect.union(endRect);

                    if (centerVertically) {
                        int restY = jspText.getViewport().getHeight() -
                            union.height;
                        union.y = union.y - (restY / 2);

                        if (union.y < 0) {
                            union.y = 0;
                        }

                        // the +1 for some reason results in a smoother scrolling...
                        union.height = union.height + restY + 1;

                        taText.scrollRectToVisible(union);
                    } else {
                        //taText.scrollRectToVisible(taText.modelToView(idx));
                        taText.scrollRectToVisible(union);
                    }

                    break;
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }