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Diffstat (limited to 'tqtinterface/qt4/src/widgets/tqslider.cpp')
| -rw-r--r-- | tqtinterface/qt4/src/widgets/tqslider.cpp | 921 |
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diff --git a/tqtinterface/qt4/src/widgets/tqslider.cpp b/tqtinterface/qt4/src/widgets/tqslider.cpp deleted file mode 100644 index 38dd7cc..0000000 --- a/tqtinterface/qt4/src/widgets/tqslider.cpp +++ /dev/null @@ -1,921 +0,0 @@ -/**************************************************************************** -** -** Implementation of TQSlider class -** -** Created : 961019 -** -** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA. -** -** This file is part of the widgets module of the TQt GUI Toolkit. -** -** This file may be used under the terms of the GNU General -** Public License versions 2.0 or 3.0 as published by the Free -** Software Foundation and appearing in the files LICENSE.GPL2 -** and LICENSE.GPL3 included in the packaging of this file. -** Alternatively you may (at your option) use any later version -** of the GNU General Public License if such license has been -** publicly approved by Trolltech ASA (or its successors, if any) -** and the KDE Free TQt Foundation. -** -** Please review the following information to ensure GNU General -** Public Licensing requirements will be met: -** http://trolltech.com/products/qt/licenses/licensing/opensource/. -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://trolltech.com/products/qt/licenses/licensing/licensingoverview -** or contact the sales department at sales@trolltech.com. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.TQPL -** included in the packaging of this file. Licensees holding valid TQt -** Commercial licenses may use this file in accordance with the TQt -** Commercial License Agreement provided with the Software. -** -** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, -** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted -** herein. -** -**********************************************************************/ - -#include "tqslider.h" -#ifndef TQT_NO_SLIDER -#include "tqpainter.h" -#include "tqdrawutil.h" -#include "tqtimer.h" -#include "tqbitmap.h" -#include "tqapplication.h" -#include "tqstyle.h" -#if defined(TQT_ACCESSIBILITY_SUPPORT) -#include "tqaccessible.h" -#endif - -static const int thresholdTime = 300; -static const int repeatTime = 100; - -struct TQSliderPrivate -{ - // ### move these to TQSlider in TQt 4.0 - int sliderStartVal; - TQSliderPrivate() : sliderStartVal( 0 ) { } -}; - - -/*! - \class TQSlider - \brief The TQSlider widget provides a vertical or horizontal slider. - - \ingroup basic - \mainclass - - The slider is the classic widget for controlling a bounded value. - It lets the user move a slider along a horizontal or vertical - groove and translates the slider's position into an integer value - within the legal range. - - TQSlider inherits TQRangeControl, which provides the "integer" side - of the slider. setRange() and value() are likely to be used by - practically all slider users; see the \l TQRangeControl - documentation for information about the many other functions that - class provides. - - The main functions offered by the slider itself are tickmark and - orientation control; you can use setTickmarks() to indicate where - you want the tickmarks to be, setTickInterval() to indicate how - many of them you want and setOrientation() to indicate whether the - slider is to be horizontal or vertical. - - A slider accepts focus on Tab and uses the mouse wheel and a - suitable keyboard interface. - - <img src=qslider-m.png> <img src=qslider-w.png> - - \important setRange - - \sa TQScrollBar TQSpinBox - \link guibooks.html#fowler GUI Design Handbook: Slider\endlink -*/ - - -/*! - \enum TQSlider::TickSetting - - This enum specifies where the tickmarks are to be drawn relative - to the slider's groove and the handle the user moves. - - \value NoMarks do not draw any tickmarks. - \value Both draw tickmarks on both sides of the groove. - \value Above draw tickmarks above the (horizontal) slider - \value Below draw tickmarks below the (horizontal) slider - \value Left draw tickmarks to the left of the (vertical) slider - \value Right draw tickmarks to the right of the (vertical) slider -*/ - - -/*! - Constructs a vertical slider. - - The \a parent and \a name arguments are sent on to the TQWidget - constructor. -*/ - -TQSlider::TQSlider( TQWidget *parent, const char *name ) - : TQWidget( parent, name ) -{ - orient = Qt::Vertical; - init(); -} - -/*! - Constructs a slider. - - The \a orientation must be \l Qt::Vertical or \l Qt::Horizontal. - - The \a parent and \a name arguments are sent on to the TQWidget - constructor. -*/ - -TQSlider::TQSlider( Qt::Orientation orientation, TQWidget *parent, const char *name ) - : TQWidget( parent, name ) -{ - orient = orientation; - init(); -} - -/*! - Constructs a slider whose value can never be smaller than \a - minValue or greater than \a maxValue, whose page step size is \a - pageStep and whose value is initially \a value (which is - guaranteed to be in range using bound()). - - If \a orientation is \c Qt::Vertical the slider is vertical and if it - is \c Qt::Horizontal the slider is horizontal. - - The \a parent and \a name arguments are sent on to the TQWidget - constructor. -*/ - -TQSlider::TQSlider( int minValue, int maxValue, int pageStep, - int value, Qt::Orientation orientation, - TQWidget *parent, const char *name ) - : TQWidget( parent, name ), - TQRangeControl( minValue, maxValue, 1, pageStep, value ) -{ - orient = orientation; - init(); - sliderVal = value; -} - -/*! - Destructor. -*/ -TQSlider::~TQSlider() -{ - delete d; -} - -void TQSlider::init() -{ - d = new TQSliderPrivate; - timer = 0; - sliderPos = 0; - sliderVal = 0; - clickOffset = 0; - state = Idle; - track = TRUE; - ticks = NoMarks; - tickInt = 0; - setFocusPolicy( Qt::TabFocus ); - initTicks(); - - TQSizePolicy sp( TQSizePolicy::Expanding, TQSizePolicy::Fixed ); - if ( orient == Qt::Vertical ) - sp.transpose(); - tqsetSizePolicy( sp ); - clearWState( TQt::WState_OwnSizePolicy ); -} - - -/* - Does what's needed when someone changes the tickmark status. -*/ - -void TQSlider::initTicks() -{ - tickOffset = tqstyle().tqpixelMetric( TQStyle::PM_SliderTickmarkOffset, this ); -} - - -/*! - \property TQSlider::tracking - \brief whether slider tracking is enabled - - If tracking is enabled (the default), the slider emits the - valueChanged() signal whenever the slider is being dragged. If - tracking is disabled, the slider emits the valueChanged() signal - when the user releases the mouse button (unless the value happens - to be the same as before). -*/ - -void TQSlider::setTracking( bool enable ) -{ - track = enable; -} - - -/*! - \fn void TQSlider::valueChanged( int value ) - - This signal is emitted when the slider value is changed, with the - new slider \a value as its argument. -*/ - -/*! - \fn void TQSlider::sliderPressed() - - This signal is emitted when the user presses the slider with the - mouse. -*/ - -/*! - \fn void TQSlider::sliderMoved( int value ) - - This signal is emitted when the slider is dragged, with the new - slider \a value as its argument. -*/ - -/*! - \fn void TQSlider::sliderReleased() - - This signal is emitted when the user releases the slider with the mouse. -*/ - -/* - Calculates slider position corresponding to value \a v. -*/ - -int TQSlider::positionFromValue( int v ) const -{ - int a = available(); - int x = TQRangeControl::positionFromValue( v, a ); - if ( orient == Qt::Horizontal && TQApplication::reverseLayout() ) - x = a - x; - return x; -} - -/* - Returns the available space in which the slider can move. -*/ - -int TQSlider::available() const -{ - return tqstyle().tqpixelMetric( TQStyle::PM_SliderSpaceAvailable, this ); -} - -/* - Calculates a value corresponding to slider position \a p. -*/ - -int TQSlider::valueFromPosition( int p ) const -{ - int a = available(); - int x = TQRangeControl::valueFromPosition( p, a ); - if ( orient == Qt::Horizontal && TQApplication::reverseLayout() ) - x = maxValue() + minValue() - x; - return x; -} - -/*! - Implements the virtual TQRangeControl function. -*/ - -void TQSlider::rangeChange() -{ - int newPos = positionFromValue( value() ); - if ( newPos != sliderPos ) { - reallyMoveSlider( newPos ); - } -} - -/*! - Implements the virtual TQRangeControl function. -*/ - -void TQSlider::valueChange() -{ - if ( sliderVal != value() ) { - int newPos = positionFromValue( value() ); - sliderVal = value(); - reallyMoveSlider( newPos ); - } - emit valueChanged(value()); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( this, 0, TQAccessible::ValueChanged ); -#endif -} - - -/*! - \reimp -*/ -void TQSlider::resizeEvent( TQResizeEvent * ) -{ - rangeChange(); - initTicks(); -} - - -/*! - Reimplements the virtual function TQWidget::setPalette(). - - Sets the background color to the mid color for Motif style sliders - using palette \a p. -*/ - -void TQSlider::setPalette( const TQPalette &p ) -{ - TQWidget::setPalette( p ); -} - - - -/*! - \property TQSlider::orientation - \brief the slider's orientation - - The orientation must be \l Qt::Vertical (the default) or \l - Qt::Horizontal. -*/ - -void TQSlider::setOrientation( Qt::Orientation orientation ) -{ - if ( orientation == orient ) - return; - - if ( !testWState( TQt::WState_OwnSizePolicy ) ) { - TQSizePolicy sp = sizePolicy(); - sp.transpose(); - tqsetSizePolicy( sp ); - clearWState( TQt::WState_OwnSizePolicy ); - } - - orient = orientation; - - rangeChange(); - update(); -} - -/*! - \fn int TQSlider::sliderStart() const - - Returns the start position of the slider. -*/ - - -/*! - Returns the slider handle rectangle. (This is the visual marker - that the user can move.) -*/ - -TQRect TQSlider::sliderRect() const -{ - return tqstyle().querySubControlMetrics( TQStyle::CC_Slider, this, - TQStyle::SC_SliderHandle ); -} - -/* - Performs the actual moving of the slider. -*/ - -void TQSlider::reallyMoveSlider( int newPos ) -{ - TQRegion oldR(sliderRect()); - sliderPos = newPos; - TQRegion newR(sliderRect()); - - /* just the one tqrepaint if no background */ - if (backgroundMode() == TQt::NoBackground) - tqrepaint(newR | oldR, FALSE); - else { - tqrepaint(oldR.subtract(newR)); - tqrepaint(newR, FALSE); - } -} - - -/*! - \reimp -*/ -void TQSlider::paintEvent( TQPaintEvent * ) -{ - TQPainter p( this ); - - TQStyle::SFlags flags = TQStyle::Style_Default; - if (isEnabled()) - flags |= TQStyle::Style_Enabled; - if (hasFocus()) - flags |= TQStyle::Style_HasFocus; - - TQStyle::SCFlags sub = TQStyle::SC_SliderGroove | TQStyle::SC_SliderHandle; - if ( tickmarks() != NoMarks ) - sub |= TQStyle::SC_SliderTickmarks; - - tqstyle().tqdrawComplexControl( TQStyle::CC_Slider, &p, this, rect(), tqcolorGroup(), - flags, sub, state == Dragging ? TQStyle::SC_SliderHandle : TQStyle::SC_None ); -} - - -/*! - \reimp -*/ -void TQSlider::mousePressEvent( TQMouseEvent *e ) -{ - int slideLength = tqstyle().tqpixelMetric( TQStyle::PM_SliderLength, this ); - resetState(); - d->sliderStartVal = sliderVal; - TQRect r = sliderRect(); - - if ( e->button() == Qt::RightButton ) - return; - - if ( r.contains( e->pos() ) ) { - state = Dragging; - clickOffset = (TQCOORD)( goodPart( e->pos() ) - sliderPos ); - emit sliderPressed(); - } else if ( e->button() == Qt::MidButton ) { - int pos = goodPart( e->pos() ); - moveSlider( pos - slideLength / 2 ); - state = Dragging; - clickOffset = slideLength / 2; - } else if ( (orient == Qt::Horizontal && e->pos().x() < r.left()) //### goodPart - || (orient == Qt::Vertical && e->pos().y() < r.top()) ) { - if ( orient == Qt::Horizontal && TQApplication::reverseLayout() ) { - state = TimingUp; - addPage(); - } else { - state = TimingDown; - subtractPage(); - } - if ( !timer ) - timer = new TQTimer( this ); - connect( timer, TQT_SIGNAL(timeout()), TQT_SLOT(repeatTimeout()) ); - timer->start( thresholdTime, TRUE ); - } else if ( (orient == Qt::Horizontal && e->pos().x() > r.right()) //### goodPart - || (orient == Qt::Vertical && e->pos().y() > r.bottom()) ) { - if ( orient == Qt::Horizontal && TQApplication::reverseLayout() ) { - state = TimingDown; - subtractPage(); - } else { - state = TimingUp; - addPage(); - } - if ( !timer ) - timer = new TQTimer( this ); - connect( timer, TQT_SIGNAL(timeout()), TQT_SLOT(repeatTimeout()) ); - timer->start( thresholdTime, TRUE ); - } - update( sliderRect() ); -} - -/*! - \reimp -*/ -void TQSlider::mouseMoveEvent( TQMouseEvent *e ) -{ - if ( state != Dragging ) - return; - - TQRect r = rect(); - int m = tqstyle().tqpixelMetric( TQStyle::PM_MaximumDragDistance, - this ); - if ( m >= 0 ) { - if ( orientation() == Qt::Horizontal ) - r.setRect( r.x() - m, r.y() - 2*m/3, - r.width() + 2*m, r.height() + 3*m ); - else - r.setRect( r.x() - 2*m/3, r.y() - m, - r.width() + 3*m, r.height() + 2*m ); - if ( !r.contains( e->pos() ) ) { - moveSlider( positionFromValue(d->sliderStartVal) ); - return; - } - } - - int pos = goodPart( e->pos() ); - moveSlider( pos - clickOffset ); -} - -/*! - \reimp -*/ -#ifndef TQT_NO_WHEELEVENT -void TQSlider::wheelEvent( TQWheelEvent * e ) -{ - if ( e->orientation() != orientation() && !TQT_TQRECT_OBJECT(rect()).contains(e->pos()) ) - return; - - static float offset = 0; - static TQSlider* offset_owner = 0; - if (offset_owner != this){ - offset_owner = this; - offset = 0; - } - offset += -e->delta()*TQMAX(pageStep(),lineStep())/120; - if (TQABS(offset)<1) - return; - setValue( value() + int(offset) ); - offset -= int(offset); - e->accept(); -} -#endif - -/*! - \reimp -*/ -void TQSlider::mouseReleaseEvent( TQMouseEvent * ) -{ - resetState(); - update( sliderRect() ); -} - -/*! - \reimp -*/ -void TQSlider::focusInEvent( TQFocusEvent * e) -{ - TQWidget::focusInEvent( e ); -} - -/*! - \reimp -*/ -void TQSlider::focusOutEvent( TQFocusEvent * e ) -{ - TQWidget::focusOutEvent( e ); -} - -/*! - Moves the left (or top) edge of the slider to position \a pos. The - slider is actually moved to the step position nearest the given \a - pos. -*/ - -void TQSlider::moveSlider( int pos ) -{ - int a = available(); - int newPos = TQMIN( a, TQMAX( 0, pos ) ); - int newVal = valueFromPosition( newPos ); - if (tqstyle().tqstyleHint(TQStyle::SH_Slider_SnapToValue, this)) - newPos = positionFromValue( newVal ); - if ( sliderPos != newPos ) - reallyMoveSlider( newPos ); - if ( sliderVal != newVal ) { - sliderVal = newVal; - emit sliderMoved( sliderVal ); - } - if ( tracking() && sliderVal != value() ) - setValue( sliderVal ); - -} - - -/* - Resets all state information and stops the timer. -*/ - -void TQSlider::resetState() -{ - if ( timer ) { - timer->stop(); - timer->disconnect(); - } - switch ( state ) { - case TimingUp: - case TimingDown: - break; - case Dragging: { - setValue( valueFromPosition( sliderPos ) ); - emit sliderReleased(); - break; - } - case Idle: - break; - default: - qWarning("TQSlider: (%s) in wrong state", name( "unnamed" ) ); - } - state = Idle; -} - - -/*! - \reimp -*/ -void TQSlider::keyPressEvent( TQKeyEvent *e ) -{ - bool sloppy = bool(tqstyle().tqstyleHint(TQStyle::SH_Slider_SloppyKeyEvents, this)); - switch ( e->key() ) { - case Qt::Key_Left: - if ( sloppy || orient == Qt::Horizontal ) { - if (TQApplication::reverseLayout()) - addLine(); - else - subtractLine(); - } - break; - case Qt::Key_Right: - if ( sloppy || orient == Qt::Horizontal ) { - if (TQApplication::reverseLayout()) - subtractLine(); - else - addLine(); - } - break; - case Qt::Key_Up: - if ( sloppy || orient == Qt::Vertical ) - subtractLine(); - break; - case Qt::Key_Down: - if ( sloppy || orient == Qt::Vertical ) - addLine(); - break; - case TQt::Key_Prior: - subtractPage(); - break; - case TQt::Key_Next: - addPage(); - break; - case Qt::Key_Home: - setValue( minValue() ); - break; - case Qt::Key_End: - setValue( maxValue() ); - break; - default: - e->ignore(); - return; - } -} - -void TQSlider::setValue( int value ) -{ - TQRangeControl::setValue( value ); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( this, 0, TQAccessible::ValueChanged ); -#endif -} - - -/*! \reimp -*/ - -void TQSlider::addLine() -{ - TQRangeControl::addLine(); -} - -/*! \reimp -*/ - -void TQSlider::subtractLine() -{ - TQRangeControl::subtractLine(); -} - -/*! - Moves the slider one pageStep() up or right. -*/ - -void TQSlider::addStep() -{ - addPage(); -} - - -/*! - Moves the slider one pageStep() down or left. -*/ - -void TQSlider::subtractStep() -{ - subtractPage(); -} - - -/* - Waits for autorepeat. -*/ - -void TQSlider::repeatTimeout() -{ - TQ_ASSERT( timer ); - timer->disconnect(); - if ( state == TimingDown ) - connect( timer, TQT_SIGNAL(timeout()), TQT_SLOT(subtractStep()) ); - else if ( state == TimingUp ) - connect( timer, TQT_SIGNAL(timeout()), TQT_SLOT(addStep()) ); - timer->start( repeatTime, FALSE ); -} - - -/* - Returns the relevant dimension of \a p. -*/ - -int TQSlider::goodPart( const TQPoint &p ) const -{ - return (orient == Qt::Horizontal) ? p.x() : p.y(); -} - -/*! - \reimp -*/ -TQSize TQSlider::tqsizeHint() const -{ - constPolish(); - const int length = 84, tickSpace = 5; - int thick = tqstyle().tqpixelMetric( TQStyle::PM_SliderThickness, this ); - if ( ticks & Above ) - thick += tickSpace; - if ( ticks & Below ) - thick += tickSpace; - int w = thick, h = length; - if ( orient == Qt::Horizontal ) { - w = length; - h = thick; - } - return (tqstyle().tqsizeFromContents(TQStyle::CT_Slider, this, - TQSize(w, h)).expandedTo(TQApplication::globalStrut())); -} - - - -/*! - \reimp -*/ - -TQSize TQSlider::tqminimumSizeHint() const -{ - TQSize s = tqsizeHint(); - int length = tqstyle().tqpixelMetric(TQStyle::PM_SliderLength, this); - if ( orient == Qt::Horizontal ) - s.setWidth( length ); - else - s.setHeight( length ); - - return s; -} - -/*! \fn void TQSlider::tqsetSizePolicy( TQSizePolicy::SizeType, TQSizePolicy::SizeType, bool ) - \reimp -*/ - -/*! \reimp */ -void TQSlider::tqsetSizePolicy( TQSizePolicy sp ) -{ - // ## remove 4.0 - TQWidget::tqsetSizePolicy( sp ); -} - -/*! \reimp */ -TQSizePolicy TQSlider::sizePolicy() const -{ - // ### 4.0 remove this reimplementation - return TQWidget::tqsizePolicy(); -} - -/*! - \property TQSlider::tickmarks - \brief the tickmark settings for this slider - - The valid values are in \l{TQSlider::TickSetting}. The default is - \c NoMarks. - - \sa tickInterval -*/ - -void TQSlider::setTickmarks( TickSetting s ) -{ - ticks = s; - initTicks(); - update(); -} - - -/*! - \property TQSlider::tickInterval - \brief the interval between tickmarks - - This is a value interval, not a pixel interval. If it is 0, the - slider will choose between lineStep() and pageStep(). The initial - value of tickInterval is 0. - - \sa TQRangeControl::lineStep(), TQRangeControl::pageStep() -*/ - -void TQSlider::setTickInterval( int i ) -{ - tickInt = TQMAX( 0, i ); - update(); -} - - -/*! - \reimp -*/ -void TQSlider::styleChange( TQStyle& old ) -{ - TQWidget::styleChange( old ); -} - -/*! - \property TQSlider::minValue - \brief the current minimum value of the slider - - When setting this property, the \l TQSlider::maxValue is adjusted, - if necessary, to ensure that the range remains valid. - - \sa setRange() -*/ -int TQSlider::minValue() const -{ - return TQRangeControl::minValue(); -} - -/*! - \property TQSlider::maxValue - \brief the current maximum value of the slider - - When setting this property, the \l TQSlider::minValue is adjusted, - if necessary, to ensure that the range remains valid. - - \sa setRange() -*/ -int TQSlider::maxValue() const -{ - return TQRangeControl::maxValue(); -} - -void TQSlider::setMinValue( int minVal ) -{ - TQRangeControl::setMinValue( minVal ); -} - -void TQSlider::setMaxValue( int maxVal ) -{ - TQRangeControl::setMaxValue( maxVal ); -} - -/*! - \property TQSlider::lineStep - \brief the current line step - - When setting lineStep, the virtual stepChange() function will be - called if the new line step is different from the previous - setting. - - \sa setSteps() TQRangeControl::pageStep() setRange() -*/ -int TQSlider::lineStep() const -{ - return TQRangeControl::lineStep(); -} - -/*! - \property TQSlider::pageStep - \brief the current page step - - When setting pageStep, the virtual stepChange() function will be - called if the new page step is different from the previous - setting. - - \sa TQRangeControl::setSteps() setLineStep() setRange() -*/ - -int TQSlider::pageStep() const -{ - return TQRangeControl::pageStep(); -} - -void TQSlider::setLineStep( int i ) -{ - setSteps( i, pageStep() ); -} - -void TQSlider::setPageStep( int i ) -{ - setSteps( lineStep(), i ); -} - -/*! - \property TQSlider::value - \brief the current slider value - - \sa TQRangeControl::value() prevValue() -*/ - -int TQSlider::value() const -{ - return TQRangeControl::value(); -} - -#endif |