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author | Timothy Pearson <[email protected]> | 2011-07-10 15:24:15 -0500 |
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committer | Timothy Pearson <[email protected]> | 2011-07-10 15:24:15 -0500 |
commit | bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch) | |
tree | 7a520322212d48ebcb9fbe1087e7fca28b76185c /examples/progressbar | |
download | qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip |
Add Qt3 development HEAD version
Diffstat (limited to 'examples/progressbar')
-rw-r--r-- | examples/progressbar/main.cpp | 23 | ||||
-rw-r--r-- | examples/progressbar/progressbar.cpp | 165 | ||||
-rw-r--r-- | examples/progressbar/progressbar.doc | 29 | ||||
-rw-r--r-- | examples/progressbar/progressbar.h | 40 | ||||
-rw-r--r-- | examples/progressbar/progressbar.pro | 11 |
5 files changed, 268 insertions, 0 deletions
diff --git a/examples/progressbar/main.cpp b/examples/progressbar/main.cpp new file mode 100644 index 0000000..d49f959 --- /dev/null +++ b/examples/progressbar/main.cpp @@ -0,0 +1,23 @@ +/**************************************************************************** +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include "progressbar.h" +#include <qapplication.h> + +int main(int argc,char **argv) +{ + QApplication a(argc,argv); + + ProgressBar progressbar; + progressbar.setCaption("Qt Example - ProgressBar"); + a.setMainWidget(&progressbar); + progressbar.show(); + + return a.exec(); +} diff --git a/examples/progressbar/progressbar.cpp b/examples/progressbar/progressbar.cpp new file mode 100644 index 0000000..216b1d7 --- /dev/null +++ b/examples/progressbar/progressbar.cpp @@ -0,0 +1,165 @@ +/**************************************************************************** +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include "progressbar.h" + +#include <qradiobutton.h> +#include <qpushbutton.h> +#include <qprogressbar.h> +#include <qlayout.h> + +#include <qmotifstyle.h> + +/* + * Constructor + * + * Creates child widgets of the ProgressBar widget + */ + +ProgressBar::ProgressBar( QWidget *parent, const char *name ) + : QButtonGroup( 0, Horizontal, "Progress Bar", parent, name ), timer() +{ + setMargin( 10 ); + + QGridLayout* toplayout = new QGridLayout( layout(), 2, 2, 5); + + setRadioButtonExclusive( 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 QRadioButton( "S&low", this ); + normal = new QRadioButton( "&Normal", this ); + fast = new QRadioButton( "&Fast", this ); + QVBoxLayout* vb1 = new QVBoxLayout; + toplayout->addLayout( vb1, 0, 0 ); + vb1->addWidget( slow ); + vb1->addWidget( normal ); + vb1->addWidget( fast ); + + // two push buttons, one for start, for for reset. + start = new QPushButton( "&Start", this ); + reset = new QPushButton( "&Reset", this ); + QVBoxLayout* vb2 = new QVBoxLayout; + toplayout->addLayout( vb2, 0, 1 ); + vb2->addWidget( start ); + vb2->addWidget( reset ); + + // Create the progressbar + progress = new QProgressBar( 100, this ); + // progress->setStyle( new QMotifStyle() ); + toplayout->addMultiCellWidget( progress, 1, 1, 0, 1 ); + + // connect the clicked() SIGNALs of the pushbuttons to SLOTs + connect( start, SIGNAL( clicked() ), this, SLOT( slotStart() ) ); + connect( reset, SIGNAL( clicked() ), this, SLOT( slotReset() ) ); + + // connect the timeout() SIGNAL of the progress-timer to a SLOT + connect( &timer, SIGNAL( timeout() ), this, SLOT( slotTimeout() ) ); + + // Let's start with normal speed... + normal->setChecked( TRUE ); + + + // some contraints + start->setFixedWidth( 80 ); + setMinimumWidth( 300 ); +} + +/* + * SLOT slotStart + * + * This SLOT is called if the user clicks start/pause/continue + * button + */ + +void ProgressBar::slotStart() +{ + // If the progress bar is at the beginning... + if ( progress->progress() == -1 ) { + // ...set according to the checked speed-radiobutton + // the number of steps which are needed to complete the process + if ( slow->isChecked() ) + progress->setTotalSteps( 10000 ); + else if ( normal->isChecked() ) + progress->setTotalSteps( 1000 ); + else + progress->setTotalSteps( 50 ); + + // disable the speed-radiobuttons + slow->setEnabled( FALSE ); + normal->setEnabled( FALSE ); + fast->setEnabled( 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 + start->setText( "&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->setText( "&Continue" ); + } +} + +/* + * SLOT slotReset + * + * This SLOT is called when the user clicks the reset button + */ + +void ProgressBar::slotReset() +{ + // stop the timer and progress + timer.stop(); + + // rename the start/pause/continue button to Start... + start->setText( "&Start" ); + // ...and enable this button + start->setEnabled( TRUE ); + + // enable the speed-radiobuttons + slow->setEnabled( TRUE ); + normal->setEnabled( TRUE ); + fast->setEnabled( TRUE ); + + // reset the progressbar + progress->reset(); +} + +/* + * SLOT slotTimeout + * + * This SLOT is called each ms when the timer is + * active (== progress is running) + */ + +void ProgressBar::slotTimeout() +{ + int p = progress->progress(); + +#if 1 + // If the progress is complete... + if ( p == progress->totalSteps() ) { + // ...rename the start/pause/continue button to Start... + start->setText( "&Start" ); + // ...and disable it... + start->setEnabled( FALSE ); + // ...and return + return; + } +#endif + + // If the process is not complete increase it + progress->setProgress( ++p ); +} diff --git a/examples/progressbar/progressbar.doc b/examples/progressbar/progressbar.doc new file mode 100644 index 0000000..6950c72 --- /dev/null +++ b/examples/progressbar/progressbar.doc @@ -0,0 +1,29 @@ + +/* +*/ +/*! \page progressbar-example.html + + \ingroup examples + \title Progress Bar + + This example shows how to use a progress bar. + + <hr> + + Header file: + + \include progressbar/progressbar.h + + <hr> + + Implementation: + + \include progressbar/progressbar.cpp + + <hr> + + Main: + + \include progressbar/main.cpp +*/ + diff --git a/examples/progressbar/progressbar.h b/examples/progressbar/progressbar.h new file mode 100644 index 0000000..b6ba337 --- /dev/null +++ b/examples/progressbar/progressbar.h @@ -0,0 +1,40 @@ +/**************************************************************************** +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#ifndef PROGRESSBAR_H +#define PROGRESSBAR_H + +#include <qbuttongroup.h> +#include <qtimer.h> + +class QRadioButton; +class QPushButton; +class QProgressBar; + +class ProgressBar : public QButtonGroup +{ + Q_OBJECT + +public: + ProgressBar( QWidget *parent = 0, const char *name = 0 ); + +protected: + QRadioButton *slow, *normal, *fast; + QPushButton *start, *pause, *reset; + QProgressBar *progress; + QTimer timer; + +protected slots: + void slotStart(); + void slotReset(); + void slotTimeout(); + +}; + +#endif diff --git a/examples/progressbar/progressbar.pro b/examples/progressbar/progressbar.pro new file mode 100644 index 0000000..9b25197 --- /dev/null +++ b/examples/progressbar/progressbar.pro @@ -0,0 +1,11 @@ +TEMPLATE = app +TARGET = progressbar + +CONFIG += qt warn_on release +DEPENDPATH = ../../include + +REQUIRES = large-config + +HEADERS = progressbar.h +SOURCES = main.cpp \ + progressbar.cpp |