summaryrefslogtreecommitdiffstats
path: root/examples/progressbar/progressbar.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'examples/progressbar/progressbar.cpp')
-rw-r--r--examples/progressbar/progressbar.cpp165
1 files changed, 165 insertions, 0 deletions
diff --git a/examples/progressbar/progressbar.cpp b/examples/progressbar/progressbar.cpp
new file mode 100644
index 000000000..9befa6e80
--- /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 TQt. 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( TQWidget *parent, const char *name )
+ : TQButtonGroup( 0, Horizontal, "Progress Bar", parent, name ), timer()
+{
+ setMargin( 10 );
+
+ TQGridLayout* toplayout = new TQGridLayout( 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 TQRadioButton( "S&low", this );
+ normal = new TQRadioButton( "&Normal", this );
+ fast = new TQRadioButton( "&Fast", this );
+ TQVBoxLayout* vb1 = new TQVBoxLayout;
+ 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 TQPushButton( "&Start", this );
+ reset = new TQPushButton( "&Reset", this );
+ TQVBoxLayout* vb2 = new TQVBoxLayout;
+ toplayout->addLayout( vb2, 0, 1 );
+ vb2->addWidget( start );
+ vb2->addWidget( reset );
+
+ // Create the progressbar
+ progress = new TQProgressBar( 100, this );
+ // progress->setStyle( new TQMotifStyle() );
+ 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 );
+}