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Diffstat (limited to 'examples3/widgets.py')
| -rwxr-xr-x | examples3/widgets.py | 500 |
1 files changed, 500 insertions, 0 deletions
diff --git a/examples3/widgets.py b/examples3/widgets.py new file mode 100755 index 0000000..470f24e --- /dev/null +++ b/examples3/widgets.py @@ -0,0 +1,500 @@ +#!/usr/bin/env python + + +import sys, string +from qt import * + +# +## Constructs an analog clock widget that uses an internal QTimer. +# +def QMIN( x, y ): + if y > x: + return y + return x + +# +## Constructs an analog clock widget that uses an internal QTimer. +# + +class AnalogClock( QWidget ): + def __init__( self, *args ): + apply( QWidget.__init__, (self,) + args ) + self.time = QTime.currentTime() # get current time + internalTimer = QTimer( self ) # create internal timer + self.connect( internalTimer, SIGNAL("timeout()"), self.timeout ) + internalTimer.start( 5000 ) # emit signal every 5 seconds + +# +## The QTimer::timeout() signal is received by this slot. +# + + def timeout( self ): + new_time = QTime.currentTime() # get the current time + if new_time.minute() != self.time.minute(): # minute has changed + self.update() + +# +## The clock is painted using a 1000x1000 square coordinate system. +# + def paintEvent( self, qe ): # paint clock + if not self.isVisible(): # is is invisible + return + self.time = QTime.currentTime() # save current time + + pts = QPointArray() + paint = QPainter( self ) + paint.setBrush( self.foregroundColor() ) # fill with foreground color + + cp = QPoint( self.rect().center() ) # widget center point + d = QMIN( self.width(), self.height() ) # we want a circular clock + + matrix = QWMatrix() # setup transformation matrix + matrix.translate( cp.x(), cp.y() ) # origin at widget center + matrix.scale( d / 1000.0, d / 1000.0 ) # scale coordinate system + + h_angle = 30 * ( self.time.hour() % 12 - 3 ) + self.time.minute() / 2 + matrix.rotate( h_angle ) # rotate to draw hour hand + paint.setWorldMatrix( matrix ) + pts.setPoints( [ -20,0, 0,-20, 300,0, 0,20 ] ) + paint.drawPolygon( pts ) # draw hour hand + matrix.rotate( -h_angle ) # rotate back to zero + + m_angle = ( self.time.minute() - 15 ) * 6 + matrix.rotate( m_angle ) # rotate to draw minute hand + paint.setWorldMatrix( matrix ) + pts.setPoints( [ -10,0, 0,-10, 400,0, 0,10 ] ) + paint.drawPolygon( pts ) # draw minute hand + matrix.rotate( -m_angle ) # rotate back to zero + + for i in range( 0, 12 ): # draw hour lines + paint.setWorldMatrix( matrix ) + paint.drawLine( 450,0, 500,0 ) + matrix.rotate( 30 ) + + +class DigitalClock( QLCDNumber ): + def __init__( self, *args ): + apply( QLCDNumber.__init__,(self,) + args ) + self.showingColon = 0 + self.setFrameStyle(QFrame.Panel | QFrame.Raised) + self.setLineWidth( 2 ) + self.showTime() + self.normalTimer = self.startTimer( 500 ) + self.showDateTimer = -1 + + def timerEvent( self, e ): + if e.timerId() == self.showDateTimer: + self.stopDate() + else: + if self.showDateTimer == -1: + self.showTime() + + def mousePressEvent( self, e ): + if e.button() == Qt.LeftButton: + self.showDate() + + def showDate( self ): + if self.showDateTimer != -1: + return + d = QDate.currentDate() + self.display('%2d %2d' % (d.month(), d.day())) + self.showDateTimer = self.startTimer(2000) + + def stopDate( self ): + self.killTimer(self.showDateTimer) + self.showDateTimer = -1 + self.showTime() + + def showTime( self ): + self.showingColon = not self.showingColon + s = list(str(QTime.currentTime().toString())[:5]) #.left(5) + if not self.showingColon: + s[2] = ' ' + if s[0] == '0': + s[0] = ' ' + s = string.join(s,'') + self.display( s ) + + def QMIN( x, y ): + if y > x: + return y + return x + +TRUE = 1 +FALSE = 0 +MOVIEFILENAME = "trolltech.gif" + +# +# WidgetView contains lots of Qt widgets. +# + +class WidgetView ( QWidget ): + def __init__( self, *args ): + apply( QWidget.__init__, (self,) + args ) + + # Set the window caption/title + self.setCaption( "Qt Widgets Demo Application" ) + + # Install an application-global event filter + qApp.installEventFilter( self ) + + # Create a layout to position the widgets + self.topLayout = QVBoxLayout( self, 10 ) + + # Create a grid layout to hold most of the widgets + self.grid = QGridLayout( 6, 3 ) + + # This layout will get all of the stretch + self.topLayout.addLayout( self.grid, 10 ) + + # Create a menubar + self.menubar = QMenuBar( self ) + self.menubar.setSeparator( QMenuBar.InWindowsStyle ) + + # Create an easter egg + QToolTip.add( self.menubar, QRect( 0, 0, 2, 2 ), "easter egg" ) + + self.popup = QPopupMenu() + self.id = self.popup.insertItem( "&New" ) + self.popup.setItemEnabled( self.id, FALSE ) + self.id = self.popup.insertItem( "&Open" ) + self.popup.setItemEnabled( self.id, FALSE ) + self.popup.insertSeparator() + self.popup.insertItem( "&Quit", qApp, SLOT("quit()"), Qt.CTRL+Qt.Key_Q ) + + self.menubar.insertItem( "&File", self.popup ) + + # Must tell the layout about a menubar in a widget + self.topLayout.setMenuBar( self.menubar ) + + # Create an analog and a digital clock + self.aclock = AnalogClock( self ) + self.aclock.resize( 50, 50 ) + self.dclock = DigitalClock( self ) + self.dclock.setMaximumWidth( 200 ) + self.grid.addWidget( self.aclock, 0, 2 ) + self.grid.addWidget( self.dclock, 1, 2 ) + + # Give the dclock widget a blue palette + col = QColor() + col.setRgb( 0xaa, 0xbe, 0xff ) + self.dclock.setPalette( QPalette( col ) ) + + # make tool tips for both of them + QToolTip.add( self.aclock, "custom widget: analog clock" ) + QToolTip.add( self.dclock, "custom widget: digital clock" ) + + # Create a push button. + self.pb = QPushButton( self, "button1" ) # create button 1 + self.pb.setText( "Push button 1" ) + self.pb.setFixedHeight( self.pb.sizeHint().height() ) + self.grid.addWidget( self.pb, 0, 0, Qt.AlignVCenter ) + self.connect( self.pb, SIGNAL("clicked()"), self.button1Clicked ) + QToolTip.add( self.pb, "push button 1" ) + self.pm = QPixmap() + self.pix = self.pm.load( "qt.png" ) # load pixmap for button 2 + if not self.pix: + QMessageBox.information( None, "Qt Widgets Example", + "Could not load the file \"qt.png\", which\n" + "contains an icon used...\n\n" + "The text \"line 42\" will be substituted.", + QMessageBox.Ok + QMessageBox.Default ) + + # Create a label containing a QMovie + self.movielabel = QLabel( self, "label0" ) + self.movie = QMovie( MOVIEFILENAME ) + self.movie.connectStatus( self.movieStatus ) + self.movie.connectUpdate( self.movieUpdate ) + self.movielabel.setFrameStyle( QFrame.Box | QFrame.Plain ) + self.movielabel.setMovie( self.movie ) + self.movielabel.setMargin( 0 ) + self.movielabel.setFixedSize( 128 + self.movielabel.frameWidth() * 2, + 64 + self.movielabel.frameWidth() * 2 ) + self.grid.addWidget( self.movielabel, 0, 1, Qt.AlignCenter ) + QToolTip.add( self.movielabel, "movie" ) + + # Create a group of check boxes + self.bg = QButtonGroup( self, "checkGroup" ) + self.bg.setTitle( "Check Boxes" ) + self.grid.addWidget( self.bg, 1, 0 ) + + # Create a layout for the check boxes + self.vbox = QVBoxLayout(self.bg, 10) + + self.vbox.addSpacing( self.bg.fontMetrics().height() ) + + self.cb = range(3) + self.cb[0] = QCheckBox( self.bg ) + self.cb[0].setText( "Read" ) + self.vbox.addWidget( self.cb[0] ) + self.cb[0].setMinimumSize( self.cb[0].sizeHint() ) + self.cb[1] = QCheckBox( self.bg ) + self.cb[1].setText( "Write" ) + self.vbox.addWidget( self.cb[1] ) + self.cb[1].setMinimumSize( self.cb[1].sizeHint() ) + self.cb[2] = QCheckBox( self.bg ) + self.cb[2].setText( "Execute" ) + self.cb[2].setMinimumSize( self.cb[2].sizeHint() ) + self.vbox.addWidget( self.cb[2] ) + self.bg.setMinimumSize( self.bg.childrenRect().size() ) + self.vbox.activate() + + self.connect( self.bg, SIGNAL("clicked(int)"), self.checkBoxClicked ) + + QToolTip.add( self.cb[0], "check box 1" ) + QToolTip.add( self.cb[1], "check box 2" ) + QToolTip.add( self.cb[2], "check box 3" ) + + # Create a group of radio buttons + self.bg = QButtonGroup( self, "radioGroup" ) + self.bg.setTitle( "Radio buttons" ) + + self.grid.addWidget( self.bg, 1, 1 ) + + # Create a layout for the radio buttons + self.vbox = QVBoxLayout( self.bg, 10 ) + + self.vbox.addSpacing( self.bg.fontMetrics().height() ) + self.rb = QRadioButton( self.bg ) + self.rb.setText( "&AM" ) + self.rb.setChecked( TRUE ) + self.vbox.addWidget( self.rb ) + self.rb.setMinimumSize( self.rb.sizeHint() ) + QToolTip.add( self.rb, "radio button 1" ) + self.rb = QRadioButton( self.bg ) + self.rb.setText( "&FM" ) + self.vbox.addWidget( self.rb ) + self.rb.setMinimumSize( self.rb.sizeHint() ) + QToolTip.add( self.rb, "radio button 2" ) + self.rb = QRadioButton( self.bg ) + self.rb.setText( "&Short Wave" ) + self.vbox.addWidget( self.rb ) + self.rb.setMinimumSize( self.rb.sizeHint() ) + self.vbox.activate() + + self.connect( self.bg, SIGNAL("clicked(int)"), self.radioButtonClicked ) + QToolTip.add( self.rb, "radio button 3" ) + + # Create a list box + self.lb = QListBox( self, "listBox" ) + for i in range( 0, 100, 1 ): # fill list box + txt = QString() + txt = "line %d" % i + if i == 42 and self.pix: + self.lb.insertItem( self.pm ) + else: + self.lb.insertItem( txt ) + + self.grid.addMultiCellWidget( self.lb, 2, 4, 0, 0 ) + self.connect( self.lb, SIGNAL("selected(int)"), self.listBoxItemSelected ) + QToolTip.add( self.lb, "list box" ) + + self.vbox = QVBoxLayout( 8 ) + self.grid.addLayout( self.vbox, 2, 1 ) + + # Create a slider + self.sb = QSlider( 0, 300, 1, 100, QSlider.Horizontal, self, "Slider" ) + self.sb.setTickmarks( QSlider.Below ) + self.sb.setTickInterval( 10 ) + self.sb.setFocusPolicy( QWidget.TabFocus ) + self.sb.setFixedHeight( self.sb.sizeHint().height() ) + self.vbox.addWidget( self.sb ) + + self.connect( self.sb, SIGNAL("valueChanged(int)"), self.sliderValueChanged ) + QToolTip.add( self.sb, "slider" ) + + # Create a combo box + self.combo = QComboBox( FALSE, self, "comboBox" ) + self.combo.insertItem( "darkBlue" ) + self.combo.insertItem( "darkRed" ) + self.combo.insertItem( "darkGreen" ) + self.combo.insertItem( "blue" ) + self.combo.insertItem( "red" ) + self.combo.setFixedHeight( self.combo.sizeHint().height() ) + self.vbox.addWidget( self.combo ) + self.connect( self.combo, SIGNAL("activated(int)"), self.comboBoxItemActivated ) + QToolTip.add( self.combo, "read-only combo box" ) + + # Create an editable combo box + self.edCombo = QComboBox( TRUE, self, "edComboBox" ) + self.edCombo.insertItem( "Permutable" ) + self.edCombo.insertItem( "Malleable" ) + self.edCombo.insertItem( "Adaptable" ) + self.edCombo.insertItem( "Alterable" ) + self.edCombo.insertItem( "Inconstant" ) + self.edCombo.setFixedHeight( self.edCombo.sizeHint().height() ) + self.vbox.addWidget( self.edCombo ) + self.connect( self.edCombo, SIGNAL("activated(const QString &)"), self.edComboBoxItemActivated) + QToolTip.add( self.edCombo, "editable combo box" ) + + self.edCombo.setAutoCompletion( TRUE ) + + self.vbox.addStretch( 1 ) + + self.vbox = QVBoxLayout( 8 ) + self.grid.addLayout( self.vbox, 2, 2 ) + + # Create a spin box + self.spin = QSpinBox( 0, 10, 1, self, "spin" ) + self.spin.setSuffix( " mm" ) + self.spin.setSpecialValueText( "Auto" ) + self.spin.setMinimumSize( self.spin.sizeHint() ) + self.connect( self.spin, SIGNAL( "valueChanged(const QString &)" ), self.spinBoxValueChanged ) + QToolTip.add( self.spin, "spin box" ) + self.vbox.addWidget( self.spin ) + + self.vbox.addStretch( 1 ) + + # Create a multi line edit + self.mle = QMultiLineEdit( self, "multiLineEdit" ) + + self.grid.addMultiCellWidget( self.mle, 3, 3, 1, 2 ) + self.mle.setMinimumHeight( self.mle.fontMetrics().height() * 3 ) + self.mle.setText("This is a QMultiLineEdit widget,\n" + "useful for small multi-line\n" + "input fields.") + QToolTip.add( self.mle, "multi line editor" ) + + # Create a single line edit + self.le = QLineEdit( self, "lineEdit" ) + self.grid.addMultiCellWidget( self.le, 4, 4, 1, 2 ) + self.le.setFixedHeight( self.le.sizeHint().height() ) + self.connect( self.le, SIGNAL("textChanged(const QString &)"), self.lineEditTextChanged ) + QToolTip.add( self.le, "single line editor" ) + + # Create a horizontal line (sort of QFrame) above the message line + self.separator = QFrame( self, "separatorLine" ) + self.separator.setFrameStyle( QFrame.HLine | QFrame.Sunken ) + self.separator.setFixedHeight( self.separator.sizeHint().height() ) + self.grid.addMultiCellWidget( self.separator, 5, 5, 0, 2 ) + QToolTip.add( self.separator, "tool tips on a separator! wow!" ) + + self.grid.setRowStretch( 0, 0 ) + self.grid.setRowStretch( 1, 0 ) + self.grid.setRowStretch( 2, 0 ) + self.grid.setRowStretch( 3, 1 ) + self.grid.setRowStretch( 4, 1 ) + self.grid.setRowStretch( 5, 0 ) + + self.grid.setColStretch( 0, 1 ) + self.grid.setColStretch( 1, 1 ) + self.grid.setColStretch( 2, 1 ) + + # Create an label and a message in a plain widget + # The message is updated when buttons are clicked etc. + + self.hbox = QHBoxLayout() + self.topLayout.addLayout( self.hbox ) + self.msgLabel = QLabel( self, "msgLabel" ) + self.msgLabel.setText( "Message:" ) + self.msgLabel.setAlignment( Qt.AlignHCenter | Qt.AlignVCenter ) + self.msgLabel.setFixedSize( self.msgLabel.sizeHint() ) + self.hbox.addWidget( self.msgLabel ) + QToolTip.add( self.msgLabel, "label 1" ) + + self.msg = QLabel( self, "message" ) + self.msg.setFrameStyle( QFrame.Panel | QFrame.Sunken ) + self.msg.setAlignment( Qt.AlignCenter ) + self.msg.setFont( QFont( "times", 12, QFont.Bold ) ) + self.msg.setText( "Message" ) + self.msg.setFixedHeight( self.msg.sizeHint().height() ) + self.msg.setText( "" ) + self.hbox.addWidget( self.msg, 5 ) + QToolTip.add( self.msg, "label 2" ) + + self.topLayout.activate() + + def setStatus(self, text): + self.msg.setText( text ) + + def movieUpdate( self, r ): + # Uncomment this to test animated icons on your window manager + self.setIcon( self.movie.framePixmap() ) + + def movieStatus( self, s ): + if s == QMovie.SourceEmpty or s == QMovie.UnrecognizedFormat: + pm = QPixmap('tt-logo.png') + self.movielabel.setPixmap(pm) + self.movielabel.setFixedSize(pm.size()) + else: + if ( self.movielabel.movie() ): # for flicker-free animation: + self.movielabel.setBackgroundMode( QWidget.NoBackground ) + + def button1Clicked( self ): + self.msg.setText( "The first push button was clicked" ) + + def checkBoxClicked( self, id ): + txt = "Check box %s clicked : " % str(id) + chk = ["-","-","-"] + if self.cb[0].isChecked(): + chk[0] = "r" + if self.cb[1].isChecked(): + chk[1] = "w" + if self.cb[2].isChecked(): + chk[2] = "x" + txt = txt + str(chk[0]+chk[1]+chk[2]) + self.msg.setText( txt ) + + def edComboBoxItemActivated( self, text): + self.msg.setText( "Editable Combo Box set to %s" % text ) + + def radioButtonClicked( self, id ): + self.msg.setText( "Radio button #%d clicked" % id ) + + def listBoxItemSelected( self, index ): + self.msg.setText( "List box item %d selected" % index ) + + def sliderValueChanged( self, value ): + self.msg.setText( "Movie set to %d%% of normal speed" % value ) + self.movie.setSpeed( value ) + + def comboBoxItemActivated( self, index ): + self.msg.setText( "Combo box item %d activated" % index ) + p = QApplication.palette() + if index == 0: + p.setColor( QColorGroup.Highlight, Qt.darkBlue ) + elif index == 1: + p.setColor( QColorGroup.Highlight, Qt.darkRed ) + elif index == 2: + p.setColor( QColorGroup.Highlight, Qt.darkGreen ) + elif index == 3: + p.setColor( QColorGroup.Highlight, Qt.blue ) + elif index == 4: + p.setColor( QColorGroup.Highlight, Qt.red ) + QApplication.setPalette( p, TRUE ) + + def lineEditTextChanged( self, newText ): + self.msg.setText("Line edit text: " + unicode(newText)) + + def spinBoxValueChanged( self, valueText ): + self.msg.setText("Spin box value: " + unicode(valueText)) + + # All application events are passed throught this event filter. + # We're using it to display some information about a clicked + # widget (right mouse button + CTRL). + #def eventFilter( self, event ): + # identify_now = TRUE + # if event.type() == Event_MouseButtonPress and identify_now: + # e = QMouseEvent( event ) + # if (e.button() == Qt.RightButton) and (e.state() & Qt.ControlButton) != 0: + # txt = QString( "The clicked widget is a\n" ) + # txt = txt + QObect.className() + # txt = txt + "\nThe widget's name is\n" + # if QObject.name(): + # txt = txt + QObject.name() + # else: + # txt = txt + "<no name>" + # identify_now = FALSE # don't do it in message box + # QMessageBox.message( "Identify Widget", txt, 0, QObject ) + # identify_now = TRUE; # allow it again + # return FALSE # don't eat event + +################################################################################################ + +#QApplication.setColourSpec( QApplication.CustomColor ) +a = QApplication( sys.argv ) + +w = WidgetView() +a.setMainWidget( w ) +w.show() +a.exec_loop() |