tdebindings/qtjava/javalib/examples/richtext/MyRichText.java

/***************************************************************************
* $Id$
**
* Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
**
* This file is part of an example program for Qt.  This example
* program may be used, distributed and modified without limitation.
**
****************************************************************************/

import org.kde.qt.*;


class MyRichText  extends QVBox
{

protected QTextView view;
protected QPushButton bClose, bNext, bPrev;
protected int num;



static String[] sayings = {
    "<b>Saying 1:</b><br>"
    + "<hr><br><br>"
    + "<big>Evil is that which one believes of others.  It is a sin to believe evil "
    + "of others, but it is seldom a mistake.</big><br><br>"
    + "<center><i>-- H.L. Mencken</i></center>",

    "<b>Saying 2:</b><br>"
    + "<hr><br><br>"
    + "<big>A well-used door needs no oil on its hinges.<br>"
    + "A swift-flowing steam does not grow stagnant.<br>"
    + "Neither sound nor thoughts can travel through a vacuum.<br>"
    + "Software rots if not used.<br><br>"
    + "These are great mysteries.</big><br><br>"
    + "<center><i>-- Geoffrey James, \"The Tao of Programming\"</i></center>",

    "<b>Saying 3:</b><br>"
    + "<hr><br><br>"
    + "<big>Show business is just like high school, except you get paid.</big><br><br>"
    + "<center><i>-- Martin Mull</i></center>",

    "<b>Saying 4:</b><br>"
    + "<hr><br><br>"
    + "<big><b>The Least Successful Executions</b><br>"
    + "<twocolumn><p>      History has furnished us with two executioners worthy of attention. "
    + "The first performed in Sydney in Australia.  In 1803 three attempts were "
    + "made to hang a Mr. Joseph Samuels.  On the first two of these the rope "
    + "snapped, while on the third Mr. Samuels just hung there peacefully until he "
    + "and everyone else got bored.  Since he had proved unsusceptible to capital "
    + "punishment, he was reprieved.</p>"
    + "<p>        The most important British executioner was Mr. James Berry who "
    + "tried three times in 1885 to hang Mr. John Lee at Exeter Jail, but on each "
    + "occasion failed to get the trap door open.<!p>"
    + "<p>        In recognition of this achievement, the Home Secretary commuted "
    + "Lee's sentence to \"life\" imprisonment.  He was released in 1917, emigrated "
    + "to America and lived until 1933.</p></twocolumn></big><br><br>"
    + "<center><i>-- Stephen Pile, \"The Book of Heroic Failures\"</i></center>",

    "<b>Saying 5:</b><br>"
    + "<hr><br><br>"
    + "<big>If you can, help others.  If you can't, at least don't hurt others.</big><br><br>"
    + "<center><i>-- the Dalai Lama</i></center>",

    "<b>Saying 6:</b><br>"
    + "<hr><br><br>"
    + "<big>Television has brought back murder into the home -- where it belongs.</big><br><br>"
    + "<center><i>-- Alfred Hitchcock</i></center>",

    "<b>Saying 7:</b><br>"
    + "<hr><br><br>"
    + "<big>I don't know who my grandfather was; I am much more concerned to know "
    + "what his grandson will be.</big><br><br>"
    + "<center><i>-- Abraham Lincoln</i></center>"

    };


MyRichText( )
{
	this(null, null);
}

MyRichText( QWidget parent, String name )
{
    super( parent, name );
    setMargin( 5 );

    view = new QTextView( this );
    view.setText( "This is a <b>Test</b> with <i>italic</i> <u>stuff</u>" );
    QBrush paper = new QBrush();
    paper.setPixmap( new QPixmap( "../richtext/marble.png" ) );
    if ( paper.pixmap() != null )
	view.setPaper( paper );
    else
	view.setPaper( new QBrush(white()) );

    view.setText( sayings[0] );
    view.setMinimumSize( 450, 250 );

    QHBox buttons = new QHBox( this );
    buttons.setMargin( 5 );

    bClose = new QPushButton( "&Close", buttons );
    bPrev = new QPushButton( "<< &Prev", buttons );
    bNext = new QPushButton( "&Next >>", buttons );

    bPrev.setEnabled( false );

    connect( bClose, SIGNAL(" clicked()"), qApp(), SLOT(" quit()") );
    connect( bPrev, SIGNAL(" clicked()"), this, SLOT(" prev()") );
    connect( bNext, SIGNAL(" clicked()"), this, SLOT(" next()") );

    num = 0;
}

void prev()
{
    if ( num <= 0 )
        return;

    num--;

    view.setText( sayings[num] );

    if ( num == 0 )
        bPrev.setEnabled( false );

    bNext.setEnabled( true );
}

void next()
{
    if ( ++num >= sayings.length )
        return;

    view.setText( sayings[num] );

    if ( num + 1 == sayings.length )
        bNext.setEnabled( false );

    bPrev.setEnabled( true );
}




}