You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
290 lines
11 KiB
290 lines
11 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/progressbar/progressbar.doc:5 -->
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
|
<title>Progress Bar</title>
|
|
<style type="text/css"><!--
|
|
fn { margin-left: 1cm; text-indent: -1cm; }
|
|
a:link { color: #004faf; text-decoration: none }
|
|
a:visited { color: #672967; text-decoration: none }
|
|
body { background: #ffffff; color: black; }
|
|
--></style>
|
|
</head>
|
|
<body>
|
|
|
|
<table border="0" cellpadding="0" cellspacing="0" width="100%">
|
|
<tr bgcolor="#E5E5E5">
|
|
<td valign=center>
|
|
<a href="index.html">
|
|
<font color="#004faf">Home</font></a>
|
|
| <a href="classes.html">
|
|
<font color="#004faf">All Classes</font></a>
|
|
| <a href="mainclasses.html">
|
|
<font color="#004faf">Main Classes</font></a>
|
|
| <a href="annotated.html">
|
|
<font color="#004faf">Annotated</font></a>
|
|
| <a href="groups.html">
|
|
<font color="#004faf">Grouped Classes</font></a>
|
|
| <a href="functions.html">
|
|
<font color="#004faf">Functions</font></a>
|
|
</td>
|
|
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Progress Bar</h1>
|
|
|
|
|
|
<p>
|
|
This example shows how to use a progress bar.
|
|
<p> <hr>
|
|
<p> Header file:
|
|
<p> <pre>/****************************************************************************
|
|
** $Id: qt/progressbar.h 3.3.8 edited Jan 11 14:37 $
|
|
**
|
|
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
|
|
**
|
|
** This file is part of an example program for TQt. This example
|
|
** program may be used, distributed and modified without limitation.
|
|
**
|
|
*****************************************************************************/
|
|
|
|
#ifndef PROGRESSBAR_H
|
|
#define PROGRESSBAR_H
|
|
|
|
#include <<a href="qbuttongroup-h.html">ntqbuttongroup.h</a>>
|
|
#include <<a href="tqtimer-h.html">tqtimer.h</a>>
|
|
|
|
class TQRadioButton;
|
|
class TQPushButton;
|
|
class TQProgressBar;
|
|
|
|
class ProgressBar : public <a href="ntqbuttongroup.html">TQButtonGroup</a>
|
|
{
|
|
<a href="metaobjects.html#TQ_OBJECT">TQ_OBJECT</a>
|
|
|
|
public:
|
|
ProgressBar( <a href="tqwidget.html">TQWidget</a> *parent = 0, const char *name = 0 );
|
|
|
|
protected:
|
|
<a href="ntqradiobutton.html">TQRadioButton</a> *slow, *normal, *fast;
|
|
<a href="ntqpushbutton.html">TQPushButton</a> *start, *pause, *reset;
|
|
<a href="ntqprogressbar.html">TQProgressBar</a> *progress;
|
|
<a href="tqtimer.html">TQTimer</a> timer;
|
|
|
|
protected slots:
|
|
void slotStart();
|
|
void slotReset();
|
|
void slotTimeout();
|
|
|
|
};
|
|
|
|
#endif
|
|
</pre>
|
|
|
|
<p> <hr>
|
|
<p> Implementation:
|
|
<p> <pre>/****************************************************************************
|
|
** $Id: qt/progressbar.cpp 3.3.8 edited Jan 11 14:37 $
|
|
**
|
|
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
|
|
**
|
|
** This file is part of an example program for TQt. This example
|
|
** program may be used, distributed and modified without limitation.
|
|
**
|
|
*****************************************************************************/
|
|
|
|
#include "progressbar.h"
|
|
|
|
#include <<a href="qradiobutton-h.html">ntqradiobutton.h</a>>
|
|
#include <<a href="qpushbutton-h.html">ntqpushbutton.h</a>>
|
|
#include <<a href="qprogressbar-h.html">ntqprogressbar.h</a>>
|
|
#include <<a href="qlayout-h.html">ntqlayout.h</a>>
|
|
|
|
#include <<a href="qmotifstyle-h.html">ntqmotifstyle.h</a>>
|
|
|
|
/*
|
|
* Constructor
|
|
*
|
|
* Creates child widgets of the ProgressBar widget
|
|
*/
|
|
|
|
<a name="f346"></a>ProgressBar::ProgressBar( <a href="tqwidget.html">TQWidget</a> *parent, const char *name )
|
|
: <a href="ntqbuttongroup.html">TQButtonGroup</a>( 0, Horizontal, "Progress Bar", parent, name ), timer()
|
|
{
|
|
<a href="ntqframe.html#setMargin">setMargin</a>( 10 );
|
|
|
|
<a href="qgridlayout.html">TQGridLayout</a>* toplayout = new <a href="qgridlayout.html">TQGridLayout</a>( <a href="tqwidget.html#layout">layout</a>(), 2, 2, 5);
|
|
|
|
<a href="ntqbuttongroup.html#setRadioButtonExclusive">setRadioButtonExclusive</a>( TRUE );
|
|
|
|
// insert three radiobuttons which the user can use
|
|
// to set the speed of the progress and two pushbuttons
|
|
// to start/pause/continue and reset the progress
|
|
slow = new <a href="ntqradiobutton.html">TQRadioButton</a>( "S&low", this );
|
|
normal = new <a href="ntqradiobutton.html">TQRadioButton</a>( "&Normal", this );
|
|
fast = new <a href="ntqradiobutton.html">TQRadioButton</a>( "&Fast", this );
|
|
<a href="qvboxlayout.html">TQVBoxLayout</a>* vb1 = new <a href="qvboxlayout.html">TQVBoxLayout</a>;
|
|
<a name="x964"></a> toplayout-><a href="qgridlayout.html#addLayout">addLayout</a>( vb1, 0, 0 );
|
|
vb1-><a href="qboxlayout.html#addWidget">addWidget</a>( slow );
|
|
vb1-><a href="qboxlayout.html#addWidget">addWidget</a>( normal );
|
|
vb1-><a href="qboxlayout.html#addWidget">addWidget</a>( fast );
|
|
|
|
// two push buttons, one for start, for for reset.
|
|
start = new <a href="ntqpushbutton.html">TQPushButton</a>( "&Start", this );
|
|
reset = new <a href="ntqpushbutton.html">TQPushButton</a>( "&Reset", this );
|
|
<a href="qvboxlayout.html">TQVBoxLayout</a>* vb2 = new <a href="qvboxlayout.html">TQVBoxLayout</a>;
|
|
toplayout-><a href="qgridlayout.html#addLayout">addLayout</a>( vb2, 0, 1 );
|
|
vb2-><a href="qboxlayout.html#addWidget">addWidget</a>( start );
|
|
vb2-><a href="qboxlayout.html#addWidget">addWidget</a>( reset );
|
|
|
|
// Create the progressbar
|
|
progress = new <a href="ntqprogressbar.html">TQProgressBar</a>( 100, this );
|
|
<a name="x975"></a> // progress-><a href="tqwidget.html#setStyle">setStyle</a>( new <a href="ntqmotifstyle.html">TQMotifStyle</a>() );
|
|
<a name="x965"></a> toplayout-><a href="qgridlayout.html#addMultiCellWidget">addMultiCellWidget</a>( progress, 1, 1, 0, 1 );
|
|
|
|
// connect the clicked() SIGNALs of the pushbuttons to SLOTs
|
|
<a name="x962"></a> <a href="tqobject.html#connect">connect</a>( start, TQ_SIGNAL( <a href="ntqbutton.html#clicked">clicked</a>() ), this, TQ_SLOT( slotStart() ) );
|
|
<a href="tqobject.html#connect">connect</a>( reset, TQ_SIGNAL( <a href="ntqbutton.html#clicked">clicked</a>() ), this, TQ_SLOT( slotReset() ) );
|
|
|
|
// connect the timeout() TQ_SIGNAL of the progress-timer to a TQ_SLOT
|
|
<a href="tqobject.html#connect">connect</a>( &timer, TQ_SIGNAL( timeout() ), this, TQ_SLOT( slotTimeout() ) );
|
|
|
|
// Let's start with normal speed...
|
|
<a name="x972"></a> normal-><a href="ntqradiobutton.html#setChecked">setChecked</a>( TRUE );
|
|
|
|
|
|
// some contraints
|
|
<a name="x974"></a> start-><a href="tqwidget.html#setFixedWidth">setFixedWidth</a>( 80 );
|
|
<a href="tqwidget.html#setMinimumWidth">setMinimumWidth</a>( 300 );
|
|
}
|
|
|
|
/*
|
|
* TQ_SLOT slotStart
|
|
*
|
|
* This TQ_SLOT is called if the user clicks start/pause/continue
|
|
* button
|
|
*/
|
|
|
|
void <a name="f347"></a>ProgressBar::slotStart()
|
|
{
|
|
// If the progress bar is at the beginning...
|
|
<a name="x966"></a> if ( progress-><a href="ntqprogressbar.html#progress">progress</a>() == -1 ) {
|
|
// ...set according to the checked speed-radiobutton
|
|
// the number of steps which are needed to complete the process
|
|
<a name="x971"></a> if ( slow-><a href="ntqradiobutton.html#isChecked">isChecked</a>() )
|
|
<a name="x969"></a> progress-><a href="ntqprogressbar.html#setTotalSteps">setTotalSteps</a>( 10000 );
|
|
else if ( normal-><a href="ntqradiobutton.html#isChecked">isChecked</a>() )
|
|
progress-><a href="ntqprogressbar.html#setTotalSteps">setTotalSteps</a>( 1000 );
|
|
else
|
|
progress-><a href="ntqprogressbar.html#setTotalSteps">setTotalSteps</a>( 50 );
|
|
|
|
// disable the speed-radiobuttons
|
|
<a name="x973"></a> slow-><a href="tqwidget.html#setEnabled">setEnabled</a>( FALSE );
|
|
normal-><a href="tqwidget.html#setEnabled">setEnabled</a>( FALSE );
|
|
fast-><a href="tqwidget.html#setEnabled">setEnabled</a>( FALSE );
|
|
}
|
|
|
|
// If the progress is not running...
|
|
if ( !timer.isActive() ) {
|
|
// ...start the timer (and so the progress) with a interval of 1 ms...
|
|
timer.start( 1 );
|
|
// ...and rename the start/pause/continue button to Pause
|
|
<a name="x963"></a> start-><a href="ntqbutton.html#setText">setText</a>( "&Pause" );
|
|
} else { // if the prgress is running...
|
|
// ...stop the timer (and so the prgress)...
|
|
timer.stop();
|
|
// ...and rename the start/pause/continue button to Continue
|
|
start-><a href="ntqbutton.html#setText">setText</a>( "&Continue" );
|
|
}
|
|
}
|
|
|
|
/*
|
|
* TQ_SLOT slotReset
|
|
*
|
|
* This TQ_SLOT is called when the user clicks the reset button
|
|
*/
|
|
|
|
void <a name="f348"></a>ProgressBar::slotReset()
|
|
{
|
|
// stop the timer and progress
|
|
timer.stop();
|
|
|
|
// rename the start/pause/continue button to Start...
|
|
start-><a href="ntqbutton.html#setText">setText</a>( "&Start" );
|
|
// ...and enable this button
|
|
start-><a href="tqwidget.html#setEnabled">setEnabled</a>( TRUE );
|
|
|
|
// enable the speed-radiobuttons
|
|
slow-><a href="tqwidget.html#setEnabled">setEnabled</a>( TRUE );
|
|
normal-><a href="tqwidget.html#setEnabled">setEnabled</a>( TRUE );
|
|
fast-><a href="tqwidget.html#setEnabled">setEnabled</a>( TRUE );
|
|
|
|
// reset the progressbar
|
|
<a name="x967"></a> progress-><a href="ntqprogressbar.html#reset">reset</a>();
|
|
}
|
|
|
|
/*
|
|
* TQ_SLOT slotTimeout
|
|
*
|
|
* This TQ_SLOT is called each ms when the timer is
|
|
* active (== progress is running)
|
|
*/
|
|
|
|
void <a name="f349"></a>ProgressBar::slotTimeout()
|
|
{
|
|
int p = progress-><a href="ntqprogressbar.html#progress">progress</a>();
|
|
|
|
#if 1
|
|
// If the progress is complete...
|
|
<a name="x970"></a> if ( p == progress-><a href="ntqprogressbar.html#totalSteps">totalSteps</a>() ) {
|
|
// ...rename the start/pause/continue button to Start...
|
|
start-><a href="ntqbutton.html#setText">setText</a>( "&Start" );
|
|
// ...and disable it...
|
|
start-><a href="tqwidget.html#setEnabled">setEnabled</a>( FALSE );
|
|
// ...and return
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
// If the process is not complete increase it
|
|
<a name="x968"></a> progress-><a href="ntqprogressbar.html#setProgress">setProgress</a>( ++p );
|
|
}
|
|
</pre>
|
|
|
|
<p> <hr>
|
|
<p> Main:
|
|
<p> <pre>/****************************************************************************
|
|
** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
|
|
**
|
|
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
|
|
**
|
|
** This file is part of an example program for TQt. This example
|
|
** program may be used, distributed and modified without limitation.
|
|
**
|
|
*****************************************************************************/
|
|
|
|
#include "progressbar.h"
|
|
#include <<a href="qapplication-h.html">ntqapplication.h</a>>
|
|
|
|
int main(int argc,char **argv)
|
|
{
|
|
<a href="ntqapplication.html">TQApplication</a> a(argc,argv);
|
|
|
|
ProgressBar progressbar;
|
|
progressbar.<a href="tqwidget.html#setCaption">setCaption</a>("TQt Example - ProgressBar");
|
|
a.<a href="ntqapplication.html#setMainWidget">setMainWidget</a>(&progressbar);
|
|
progressbar.<a href="tqwidget.html#show">show</a>();
|
|
|
|
return a.<a href="ntqapplication.html#exec">exec</a>();
|
|
}
|
|
</pre>
|
|
|
|
<p>See also <a href="examples.html">Examples</a>.
|
|
|
|
<!-- eof -->
|
|
<p><address><hr><div align=center>
|
|
<table width=100% cellspacing=0 border=0><tr>
|
|
<td>Copyright © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
|