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Diffstat (limited to 'examples/progressbar.py')
-rwxr-xr-x | examples/progressbar.py | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/examples/progressbar.py b/examples/progressbar.py new file mode 100755 index 0000000..e33362e --- /dev/null +++ b/examples/progressbar.py @@ -0,0 +1,155 @@ +#!/usr/bin/env python + +"""*********************************************************************** +** $Id: progressbar.py,v 1.1 2003/06/10 14:51:24 phil Exp $ +** +** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +**************************************************************************""" + +#import pdb +import sys +from python_tqt.qt import * + +FALSE = 0 +TRUE = 1 + +class ProgressBar( TQButtonGroup ): + # Constructor + # Creates child widgets of the ProgressBar widget + def __init__( self, parent=None, name=None ): + TQButtonGroup.__init__( self, 0, TQt.Horizontal, "Progress Bar", parent, name ) + + self.timer = TQTimer() + + self.setMargin( 10 ) + toplayout = TQGridLayout( self.layout(), 2, 2, 5) + + self.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 + self.slow = TQRadioButton( "&Slow", self ) + self.normal = TQRadioButton( "&Normal", self ) + self.fast = TQRadioButton( "&Fast", self ) + vb1 = TQVBoxLayout( ) + toplayout.addLayout( vb1, 0, 0 ) + vb1.addWidget( self.slow ) + vb1.addWidget( self.normal ) + vb1.addWidget( self.fast ) + + # two push buttons, one for start, for for reset. + self.start = TQPushButton( "&Start", self ) + self.reset = TQPushButton( "&Reset", self ) + + vb2 = TQVBoxLayout() + toplayout.addLayout( vb2, 0, 1 ) + vb2.addWidget( self.start ) + vb2.addWidget( self.reset ) + + # Create the progressbar + self.progress = TQProgressBar( 100, self ) + #self.progress.setStyle( TQMotifStyle() ) + toplayout.addMultiCellWidget( self.progress, 1, 1, 0, 1 ) + + # connect the clicked() SIGNALs of the pushbuttons to SLOTs + self.connect( self.start, SIGNAL("clicked()"), self.slotStart ) + self.connect( self.reset, SIGNAL("clicked()"), self.slotReset ) + + # connect the timeout() SIGNAL of the progress-timer to a SLOT + self.connect( self.timer, SIGNAL("timeout()"), self.slotTimeout ) + # Let's start with normal speed... + self.normal.setChecked( TRUE ) + + # some contraints + self.start.setFixedWidth( 80 ) + self.setMinimumWidth( 300 ) + + # SLOT slotStart + # This SLOT is called if the user clicks start/pause/continue button + def slotStart( self ): + # If the progress bar is at the beginning... + if self.progress.progress() == -1 : + # ...set according to the checked speed-radiobutton the + # the number of steps which are needed to complete the process + if self.slow.isChecked(): + self.progress.setTotalSteps( 10000 ) + elif self.normal.isChecked() : + self.progress.setTotalSteps( 1000 ) + else : + self.progress.setTotalSteps( 50 ) + + # disable the speed-radiobuttons + self.slow.setEnabled( FALSE ) + self.normal.setEnabled( FALSE ) + self.fast.setEnabled( FALSE ) + + # If the progress is not running... + if not self.timer.isActive() : + # ...start the timer (and so the progress) with a interval of 1 ms... + self.timer.start( 1 ) + # ...and rename the start/pause/continue button to Pause + self.start.setText( "&Pause" ) + else : # if the prgress is running... + # ...stop the timer (and so the prgress)... + self.timer.stop() + # ...and rename the start/pause/continue button to Continue + self.start.setText( "&Continue" ) + + # SLOT slotReset + # This SLOT is called when the user clicks the reset button + def slotReset( self ): + # stop the timer and progress + self.timer.stop() + + # rename the start/pause/continue button to Start... + self.start.setText( "&Start" ) + # ...and enable this button + self.start.setEnabled( TRUE ) + + # enable the speed-radiobuttons + self.slow.setEnabled( TRUE ) + self.normal.setEnabled( TRUE ) + self.fast.setEnabled( TRUE ) + + # reset the progressbar + self.progress.reset() + + # SLOT slotTimeout + # This SLOT is called each ms when the timer is + # active (== progress is running) + def slotTimeout( self ): + p = self.progress.progress() + + # If the progress is complete... + if p == self.progress.totalSteps() : + # ...rename the start/pause/continue button to Start... + self.start.setText( "&Start" ) + # ...and disable it... + self.start.setEnabled( FALSE ) + # ...and return + return + + # If the process is not complete increase it + p += 1 + self.progress.setProgress( p ) + + + #TQPushButton *start, *pause, *reset; + +def main( args ): + a = TQApplication( args ) + + progressbar = ProgressBar() + progressbar.setCaption("TQt Example - ProgressBar") + a.setMainWidget(progressbar) + progressbar.show() + + a.exec_loop() + +if __name__=="__main__": + main(sys.argv) |