jdk/src/demo/share/jfc/Stylepad/HelloWorld.java

/*
 *
 * Copyright (c) 2007, 2025, Oracle and/or its affiliates. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions 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 Oracle nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


import java.awt.Color;
import java.util.HashMap;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.Style;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyleContext;


/**
 * hack to load attributed content.
 */
public class HelloWorld {

    HelloWorld(DefaultStyledDocument doc, StyleContext styles) {
        this.doc = doc;
        this.styles = styles;
        runAttr = new HashMap<String, Style>();
    }

    void loadDocument() {
        createStyles();
        for (int i = 0; i < data.length; i++) {
            Paragraph p = data[i];
            addParagraph(p);
        }
    }

    void addParagraph(Paragraph p) {
        try {
            Style s = null;
            for (int i = 0; i < p.data.length; i++) {
                Run run = p.data[i];
                s = runAttr.get(run.attr);
                doc.insertString(doc.getLength(), run.content, s);
            }

            // set logical style
            Style ls = styles.getStyle(p.logical);
            doc.setLogicalStyle(doc.getLength() - 1, ls);
            doc.insertString(doc.getLength(), "\n", null);
        } catch (BadLocationException e) {
            System.err.println("Internal error: " + e);
        }
    }

    void createStyles() {
        // no attributes defined
        Style s = styles.addStyle(null, null);
        runAttr.put("none", s);
        s = styles.addStyle(null, null);
        StyleConstants.setItalic(s, true);
        StyleConstants.setForeground(s, new Color(153, 153, 102));
        runAttr.put("cquote", s); // catepillar quote

        s = styles.addStyle(null, null);
        StyleConstants.setItalic(s, true);
        StyleConstants.setForeground(s, new Color(51, 102, 153));
        runAttr.put("aquote", s); // alice quote

        try {
            ResourceBundle resources = ResourceBundle.getBundle(
                    "resources.Stylepad",
                    Locale.getDefault());
            s = styles.addStyle(null, null);
            Icon alice = new ImageIcon(resources.getString("aliceGif"));
            StyleConstants.setIcon(s, alice);
            runAttr.put("alice", s); // alice

            s = styles.addStyle(null, null);
            Icon caterpillar = new ImageIcon(resources.getString(
                    "caterpillarGif"));
            StyleConstants.setIcon(s, caterpillar);
            runAttr.put("caterpillar", s); // caterpillar

            s = styles.addStyle(null, null);
            Icon hatter = new ImageIcon(resources.getString("hatterGif"));
            StyleConstants.setIcon(s, hatter);
            runAttr.put("hatter", s); // hatter


        } catch (MissingResourceException mre) {
            // can't display image
        }

        Style def = styles.getStyle(StyleContext.DEFAULT_STYLE);

        Style heading = styles.addStyle("heading", def);
        //StyleConstants.setFontFamily(heading, "SansSerif");
        StyleConstants.setBold(heading, true);
        StyleConstants.setAlignment(heading, StyleConstants.ALIGN_CENTER);
        StyleConstants.setSpaceAbove(heading, 10);
        StyleConstants.setSpaceBelow(heading, 10);
        StyleConstants.setFontSize(heading, 18);

        // Title
        Style sty = styles.addStyle("title", heading);
        StyleConstants.setFontSize(sty, 32);

        // edition
        sty = styles.addStyle("edition", heading);
        StyleConstants.setFontSize(sty, 16);

        // author
        sty = styles.addStyle("author", heading);
        StyleConstants.setItalic(sty, true);
        StyleConstants.setSpaceBelow(sty, 25);

        // subtitle
        sty = styles.addStyle("subtitle", heading);
        StyleConstants.setSpaceBelow(sty, 35);

        // normal
        sty = styles.addStyle("normal", def);
        StyleConstants.setLeftIndent(sty, 10);
        StyleConstants.setRightIndent(sty, 10);
        //StyleConstants.setFontFamily(sty, "SansSerif");
        StyleConstants.setFontSize(sty, 14);
        StyleConstants.setSpaceAbove(sty, 4);
        StyleConstants.setSpaceBelow(sty, 4);
    }
    DefaultStyledDocument doc;
    StyleContext styles;
    HashMap<String, Style> runAttr;


    static class Paragraph {

        Paragraph(String logical, Run[] data) {
            this.logical = logical;
            this.data = data;
        }
        String logical;
        Run[] data;
    }


    static class Run {

        Run(String attr, String content) {
            this.attr = attr;
            this.content = content;
        }
        String attr;
        String content;
    }
    Paragraph[] data = new Paragraph[] {
        new Paragraph("title", new Run[] {
            new Run("none", "Hello from Cupertino")
        }),
        new Paragraph("title", new Run[] {
            new Run("none", "台北問候您!")
        }),
        new Paragraph("title", new Run[] {
            new Run("none", "Αθηναι ασπαζονται υμας!") // Greek
        }),
        new Paragraph("title", new Run[] {
            new Run("none", "東京から今日は")
        }),
        new Paragraph("title", new Run[] {
            new Run("none", "שלום מירושלים")
        }),
        new Paragraph("title", new Run[] {
            new Run("none", "سلام")
        }), };
}