font2dtest.java

一个小公司要求给写的很简单的任务管理系统。

/*
 * @(#)Font2DTest.java	1.28 05/11/17
 * 
 * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * -Redistribution of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 * 
 * -Redistribution in binary form must reproduce the above copyright notice, 
 *  this list of conditions and the following disclaimer in the documentation
 *  and/or other materials provided with the distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of contributors may 
 * be used to endorse or promote products derived from this software without 
 * specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL 
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
 * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
 * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
 * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST 
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 * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY 
 * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, 
 * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that this software is not designed, licensed or intended
 * for use in the design, construction, operation or maintenance of any
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 */

/*
 * @(#)Font2DTest.java	1.28 05/11/17
 */

import java.awt.Component;
import java.awt.BorderLayout;
import java.awt.CheckboxGroup;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.GraphicsEnvironment;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.EnumSet;
import java.util.StringTokenizer;
import java.util.BitSet;
import javax.swing.*;
import javax.swing.event.*;

/**
 * Font2DTest.java
 *
 * @version @(#)Font2DTest.java	1.2 00/08/22
 * @author Shinsuke Fukuda
 * @author Ankit Patel [Conversion to Swing - 01/07/30] 
 */

/// Main Font2DTest Class

public final class Font2DTest extends JPanel
    implements ActionListener, ItemListener, ChangeListener {

    /// JFrame that will contain Font2DTest
    private final JFrame parent;
    /// FontPanel class that will contain all graphical output
    private final FontPanel fp;
    /// RangeMenu class that contains info about the unicode ranges
    private final RangeMenu rm;

    /// Other menus to set parameters for text drawing
    private final ChoiceV2 fontMenu;
    private final JTextField sizeField;
    private final ChoiceV2 styleMenu;
    private final ChoiceV2 textMenu;
    private int currentTextChoice = 0;
    private final ChoiceV2 transformMenu;
    private final ChoiceV2 transformMenuG2;    
    private final ChoiceV2 methodsMenu;
    private final JComboBox antiAliasMenu;
    private final JComboBox fracMetricsMenu;
    
    private final JSlider contrastSlider;

    /// CheckboxMenuItems
    private CheckboxMenuItemV2 displayGridCBMI;
    private CheckboxMenuItemV2 force16ColsCBMI;
    private CheckboxMenuItemV2 showFontInfoCBMI;

    /// JDialog boxes
    private JDialog userTextDialog;
    private JTextArea userTextArea;
    private JDialog printDialog;
    private JDialog fontInfoDialog;
    private LabelV2 fontInfos[] = new LabelV2[2];
    private JFileChooser filePromptDialog = null;

    private ButtonGroup printCBGroup;
    private JRadioButton printModeCBs[] = new JRadioButton[3];

    /// Status bar
    private final LabelV2 statusBar;

    private int fontStyles [] = {Font.PLAIN, Font.BOLD, Font.ITALIC, Font.BOLD | Font.ITALIC};

    /// Text filename
    private String tFileName;

    // Enabled or disabled status of canDisplay check
    private static boolean canDisplayCheck = true;

    /// Initialize GUI variables and its layouts
    public Font2DTest( JFrame f, boolean isApplet ) {
        parent = f;
        
        rm = new RangeMenu( this, parent );
        fp = new FontPanel( this, parent );
        statusBar = new LabelV2("");

        fontMenu = new ChoiceV2( this, canDisplayCheck ); 
        sizeField = new JTextField( "12", 3 );
        sizeField.addActionListener( this );
        styleMenu = new ChoiceV2( this );
        textMenu = new ChoiceV2( ); // listener added later
        transformMenu = new ChoiceV2( this );
        transformMenuG2 = new ChoiceV2( this );        
        methodsMenu = new ChoiceV2( this );

        antiAliasMenu =
	    new JComboBox(EnumSet.allOf(FontPanel.AAValues.class).toArray());
	antiAliasMenu.addActionListener(this);
        fracMetricsMenu =
	    new JComboBox(EnumSet.allOf(FontPanel.FMValues.class).toArray());
	fracMetricsMenu.addActionListener(this);

	contrastSlider = new JSlider(JSlider.HORIZONTAL, 100, 250,
				 FontPanel.getDefaultLCDContrast().intValue());
	contrastSlider.setEnabled(false);
	contrastSlider.setMajorTickSpacing(20);
	contrastSlider.setMinorTickSpacing(10);
	contrastSlider.setPaintTicks(true);
	contrastSlider.setPaintLabels(true);
	contrastSlider.addChangeListener(this);
        setupPanel();
        setupMenu( isApplet );
        setupDialog( isApplet );

        if(canDisplayCheck) {
            fireRangeChanged();
        }
    }

    /// Set up the main interface panel
    private void setupPanel() {
        GridBagLayout gbl = new GridBagLayout();
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.weightx = 1;
        gbc.insets = new Insets( 2, 0, 2, 2 );
        this.setLayout( gbl );

        addLabeledComponentToGBL( "Font: ", fontMenu, gbl, gbc, this );
        addLabeledComponentToGBL( "Size: ", sizeField, gbl, gbc, this );
        gbc.gridwidth = GridBagConstraints.REMAINDER;
        addLabeledComponentToGBL( "Font Transform:",
				  transformMenu, gbl, gbc, this );
        gbc.gridwidth = 1;

        addLabeledComponentToGBL( "Range: ", rm, gbl, gbc, this );
        addLabeledComponentToGBL( "Style: ", styleMenu, gbl, gbc, this );
        gbc.gridwidth = GridBagConstraints.REMAINDER;
        addLabeledComponentToGBL( "Graphics Transform: ",
				  transformMenuG2, gbl, gbc, this );	
        gbc.gridwidth = 1;

        gbc.anchor = GridBagConstraints.WEST;
        addLabeledComponentToGBL( "Method: ", methodsMenu, gbl, gbc, this );
	addLabeledComponentToGBL("", null, gbl, gbc, this);
        gbc.anchor = GridBagConstraints.EAST;
        gbc.gridwidth = GridBagConstraints.REMAINDER;
        addLabeledComponentToGBL( "Text to use:", textMenu, gbl, gbc, this );

	gbc.weightx=1;
        gbc.gridwidth = 1;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.anchor = GridBagConstraints.WEST;
	addLabeledComponentToGBL("LCD contrast: ",
				  contrastSlider, gbl, gbc, this); 

        gbc.gridwidth = 1;
        gbc.fill = GridBagConstraints.NONE;
	addLabeledComponentToGBL("Antialiasing: ",
				  antiAliasMenu, gbl, gbc, this);

        gbc.anchor = GridBagConstraints.EAST;       
        gbc.gridwidth = GridBagConstraints.REMAINDER;        
	addLabeledComponentToGBL("Fractional metrics: ",
				  fracMetricsMenu, gbl, gbc, this); 

        gbc.weightx = 1;
        gbc.weighty = 1;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.insets = new Insets( 2, 0, 0, 2 );
        gbc.fill = GridBagConstraints.BOTH;
        gbl.setConstraints( fp, gbc );
        this.add( fp );

        gbc.weighty = 0;
        gbc.insets = new Insets( 0, 2, 0, 0 );
        gbl.setConstraints( statusBar, gbc );
        this.add( statusBar );
    }

    /// Adds a component to a container with a label to its left in GridBagLayout
    private void addLabeledComponentToGBL( String name,
                                           JComponent c,
                                           GridBagLayout gbl,
                                           GridBagConstraints gbc,
                                           Container target ) {
        LabelV2 l = new LabelV2( name );
        GridBagConstraints gbcLabel = (GridBagConstraints) gbc.clone();
        gbcLabel.insets = new Insets( 2, 2, 2, 0 );
        gbcLabel.gridwidth = 1;
        gbcLabel.weightx = 0;

        if ( c == null )
          c = new JLabel( "" );

        gbl.setConstraints( l, gbcLabel );
        target.add( l );
        gbl.setConstraints( c, gbc );
        target.add( c );
    }

    /// Sets up menu entries
    private void setupMenu( boolean isApplet ) {
        JMenu fileMenu = new JMenu( "File" );
        JMenu optionMenu = new JMenu( "Option" );

        fileMenu.add( new MenuItemV2( "Save Selected Options...", this ));
        fileMenu.add( new MenuItemV2( "Load Options...", this ));
        fileMenu.addSeparator();
        fileMenu.add( new MenuItemV2( "Save as PNG...", this ));
        fileMenu.add( new MenuItemV2( "Load PNG File to Compare...", this ));
        fileMenu.add( new MenuItemV2( "Page Setup...", this ));
        fileMenu.add( new MenuItemV2( "Print...", this ));
        fileMenu.addSeparator();
        if ( !isApplet )
          fileMenu.add( new MenuItemV2( "Exit", this ));
        else
          fileMenu.add( new MenuItemV2( "Close", this ));

        displayGridCBMI = new CheckboxMenuItemV2( "Display Grid", true, this );
        force16ColsCBMI = new CheckboxMenuItemV2( "Force 16 Columns", false, this );
        showFontInfoCBMI = new CheckboxMenuItemV2( "Display Font Info", false, this );
        optionMenu.add( displayGridCBMI );
        optionMenu.add( force16ColsCBMI );
        optionMenu.add( showFontInfoCBMI );

        JMenuBar mb = parent.getJMenuBar();
        if ( mb == null )
          mb = new JMenuBar();
        mb.add( fileMenu );
        mb.add( optionMenu );

        parent.setJMenuBar( mb );

        String fontList[] =
          GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();

        for ( int i = 0; i < fontList.length; i++ )
          fontMenu.addItem( fontList[i] );
        fontMenu.setSelectedItem( "Dialog" );

        styleMenu.addItem( "Plain" );
        styleMenu.addItem( "Bold" );
        styleMenu.addItem( "Italic" );
        styleMenu.addItem( "Bold Italic" );

        transformMenu.addItem( "None" );
        transformMenu.addItem( "Scale" );
        transformMenu.addItem( "Shear" );
        transformMenu.addItem( "Rotate" );

        transformMenuG2.addItem( "None" );
        transformMenuG2.addItem( "Scale" );
        transformMenuG2.addItem( "Shear" );
        transformMenuG2.addItem( "Rotate" );

        methodsMenu.addItem( "drawString" );
        methodsMenu.addItem( "drawChars" );
        methodsMenu.addItem( "drawBytes" );
        methodsMenu.addItem( "drawGlyphVector" );
        methodsMenu.addItem( "TextLayout.draw" );
        methodsMenu.addItem( "GlyphVector.getOutline + draw" );
        methodsMenu.addItem( "TextLayout.getOutline + draw" );

        textMenu.addItem( "Unicode Range" );
        textMenu.addItem( "All Glyphs" );
        textMenu.addItem( "User Text" );
        textMenu.addItem( "Text File" );
        textMenu.addActionListener ( this ); // listener added later so unneeded events not thrown
    }

    /// Sets up the all dialogs used in Font2DTest...
    private void setupDialog( boolean isApplet ) {
        if (!isApplet) 
        	filePromptDialog = new JFileChooser( );
        else
        	filePromptDialog = null;

        /// Prepare user text dialog...
        userTextDialog = new JDialog( parent, "User Text", false );
        JPanel dialogTopPanel = new JPanel();
        JPanel dialogBottomPanel = new JPanel();
        LabelV2 message1 = new LabelV2( "Enter text below and then press update" );
        LabelV2 message2 = new LabelV2( "(Unicode char can be denoted by \\uXXXX)" );
        LabelV2 message3 = new LabelV2( "(Supplementary chars can be denoted by \\UXXXXXX)" );
        userTextArea = new JTextArea( "Java2D!" );
        ButtonV2 bUpdate = new ButtonV2( "Update", this );
        userTextArea.setFont( new Font( "dialog", Font.PLAIN, 12 ));
        dialogTopPanel.setLayout( new GridLayout( 3, 1 ));
        dialogTopPanel.add( message1 );
        dialogTopPanel.add( message2 );
        dialogTopPanel.add( message3 );
        dialogBottomPanel.add( bUpdate );
        //ABP
        JScrollPane userTextAreaSP = new JScrollPane(userTextArea);
        userTextAreaSP.setPreferredSize(new Dimension(300, 100));

        userTextDialog.getContentPane().setLayout( new BorderLayout() );
        userTextDialog.getContentPane().add( "North", dialogTopPanel );
        userTextDialog.getContentPane().add( "Center", userTextAreaSP );
        userTextDialog.getContentPane().add( "South", dialogBottomPanel );
        userTextDialog.pack();
	userTextDialog.addWindowListener( new WindowAdapter() {
            public void windowClosing( WindowEvent e ) {
                userTextDialog.hide();
            }
        });

        /// Prepare printing dialog...
        printCBGroup = new ButtonGroup();
        printModeCBs[ fp.ONE_PAGE ] =
          new JRadioButton( "Print one page from currently displayed character/line",
                         true );
        printModeCBs[ fp.CUR_RANGE ] =
          new JRadioButton( "Print all characters in currently selected range",
                         false );
        printModeCBs[ fp.ALL_TEXT ] =
          new JRadioButton( "Print all lines of text",
                         false );
        LabelV2 l =
          new LabelV2( "Note: Page range in native \"Print\" dialog will not affect the result" );
        JPanel buttonPanel = new JPanel();
        printModeCBs[ fp.ALL_TEXT ].setEnabled( false );
        buttonPanel.add( new ButtonV2( "Print", this ));
        buttonPanel.add( new ButtonV2( "Cancel", this ));

        printDialog = new JDialog( parent, "Print...", true );
        printDialog.setResizable( false );
	printDialog.addWindowListener( new WindowAdapter() {
            public void windowClosing( WindowEvent e ) {
                printDialog.hide();
            }
        });
        printDialog.getContentPane().setLayout( new GridLayout( printModeCBs.length + 2, 1 ));
        printDialog.getContentPane().add( l );
        for ( int i = 0; i < printModeCBs.length; i++ ) {
            printCBGroup.add( printModeCBs[i] );
            printDialog.getContentPane().add( printModeCBs[i] );
        }
        printDialog.getContentPane().add( buttonPanel );