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#include <qapplication.h>
#include "qabstractslider.h"
#include "qevent.h"
#include "qabstractslider_p.h"
#include "qdebug.h"
#ifndef QT_NO_ACCESSIBILITY
#include "qaccessible.h"
#endif
#include <limits.h>
QT_BEGIN_NAMESPACE
/*!
\class QAbstractSlider
\brief The QAbstractSlider class provides an integer value within a range.
\ingroup abstractwidgets
The class is designed as a common super class for widgets like
QScrollBar, QSlider and QDial.
Here are the main properties of the class:
\list 1
\i \l value: The bounded integer that QAbstractSlider maintains.
\i \l minimum: The lowest possible value.
\i \l maximum: The highest possible value.
\i \l singleStep: The smaller of two natural steps that an
abstract sliders provides and typically corresponds to the user
pressing an arrow key.
\i \l pageStep: The larger of two natural steps that an abstract
slider provides and typically corresponds to the user pressing
PageUp or PageDown.
\i \l tracking: Whether slider tracking is enabled.
\i \l sliderPosition: The current position of the slider. If \l
tracking is enabled (the default), this is identical to \l value.
\endlist
Unity (1) may be viewed as a third step size. setValue() lets you
set the current value to any integer in the allowed range, not
just minimum() + \e n * singleStep() for integer values of \e n.
Some widgets may allow the user to set any value at all; others
may just provide multiples of singleStep() or pageStep().
QAbstractSlider emits a comprehensive set of signals:
\table
\header \i Signal \i Emitted when
\row \i \l valueChanged()
\i the value has changed. The \l tracking
determines whether this signal is emitted during user
interaction.
\row \i \l sliderPressed()
\i the user starts to drag the slider.
\row \i \l sliderMoved()
\i the user drags the slider.
\row \i \l sliderReleased()
\i the user releases the slider.
\row \i \l actionTriggered()
\i a slider action was triggerd.
\row \i \l rangeChanged()
\i a the range has changed.
\endtable
QAbstractSlider provides a virtual sliderChange() function that is
well suited for updating the on-screen representation of
sliders. By calling triggerAction(), subclasses trigger slider
actions. Two helper functions QStyle::sliderPositionFromValue() and
QStyle::sliderValueFromPosition() help subclasses and styles to map
screen coordinates to logical range values.
\sa QAbstractSpinBox, QSlider, QDial, QScrollBar, {Sliders Example}
*/
/*!
\enum QAbstractSlider::SliderAction
\value SliderNoAction
\value SliderSingleStepAdd
\value SliderSingleStepSub
\value SliderPageStepAdd
\value SliderPageStepSub
\value SliderToMinimum
\value SliderToMaximum
\value SliderMove
*/
/*!
\fn void QAbstractSlider::valueChanged(int value)
This signal is emitted when the slider value has changed, with the
new slider \a value as argument.
*/
/*!
\fn void QAbstractSlider::sliderPressed()
This signal is emitted when the user presses the slider with the
mouse, or programmatically when setSliderDown(true) is called.
\sa sliderReleased(), sliderMoved(), isSliderDown()
*/
/*!
\fn void QAbstractSlider::sliderMoved(int value)
This signal is emitted when sliderDown is true and the slider moves. This
usually happens when the user is dragging the slider. The \a value
is the new slider position.
This signal is emitted even when tracking is turned off.
\sa setTracking(), valueChanged(), isSliderDown(),
sliderPressed(), sliderReleased()
*/
/*!
\fn void QAbstractSlider::sliderReleased()
This signal is emitted when the user releases the slider with the
mouse, or programmatically when setSliderDown(false) is called.
\sa sliderPressed() sliderMoved() sliderDown
*/
/*!
\fn void QAbstractSlider::rangeChanged(int min, int max)
This signal is emitted when the slider range has changed, with \a
min being the new minimum, and \a max being the new maximum.
\sa minimum, maximum
*/
/*!
\fn void QAbstractSlider::actionTriggered(int action)
This signal is emitted when the slider action \a action is
triggered. Actions are \l SliderSingleStepAdd, \l
SliderSingleStepSub, \l SliderPageStepAdd, \l SliderPageStepSub,
\l SliderToMinimum, \l SliderToMaximum, and \l SliderMove.
When the signal is emitted, the \l sliderPosition has been
adjusted according to the action, but the \l value has not yet
been propagated (meaning the valueChanged() signal was not yet
emitted), and the visual display has not been updated. In slots
connected to this signal you can thus safely adjust any action by
calling setSliderPosition() yourself, based on both the action and
the slider's value.
\sa triggerAction()
*/
/*!
\enum QAbstractSlider::SliderChange
\value SliderRangeChange
\value SliderOrientationChange
\value SliderStepsChange
\value SliderValueChange
*/
QAbstractSliderPrivate::QAbstractSliderPrivate()
: minimum(0), maximum(99), pageStep(10), value(0), position(0), pressValue(-1),
singleStep(1), offset_accumulated(0), tracking(true),
blocktracking(false), pressed(false),
invertedAppearance(false), invertedControls(false),
orientation(Qt::Horizontal), repeatAction(QAbstractSlider::SliderNoAction)
#ifdef QT_KEYPAD_NAVIGATION
, isAutoRepeating(false)
, repeatMultiplier(1)
#endif
{
}
QAbstractSliderPrivate::~QAbstractSliderPrivate()
{
}
/*!
Sets the slider's minimum to \a min and its maximum to \a max.
If \a max is smaller than \a min, \a min becomes the only legal
value.
\sa minimum maximum
*/
void QAbstractSlider::setRange(int min, int max)
{
Q_D(QAbstractSlider);
int oldMin = d->minimum;
int oldMax = d->maximum;
d->minimum = min;
d->maximum = qMax(min, max);
if (oldMin != d->minimum || oldMax != d->maximum) {
sliderChange(SliderRangeChange);
emit rangeChanged(d->minimum, d->maximum);
setValue(d->value); // re-bound
}
}
void QAbstractSliderPrivate::setSteps(int single, int page)
{
Q_Q(QAbstractSlider);
singleStep = qAbs(single);
pageStep = qAbs(page);
q->sliderChange(QAbstractSlider::SliderStepsChange);
}
/*!
Constructs an abstract slider.
The \a parent arguments is sent to the QWidget constructor.
The \l minimum defaults to 0, the \l maximum to 99, with a \l
singleStep size of 1 and a \l pageStep size of 10, and an initial
\l value of 0.
*/
QAbstractSlider::QAbstractSlider(QWidget *parent)
:QWidget(*new QAbstractSliderPrivate, parent, 0)
{
}
/*! \internal */
QAbstractSlider::QAbstractSlider(QAbstractSliderPrivate &dd, QWidget *parent)
:QWidget(dd, parent, 0)
{
}
/*!
Destroys the slider.
*/
QAbstractSlider::~QAbstractSlider()
{
}
/*!
\property QAbstractSlider::orientation
\brief the orientation of the slider
The orientation must be \l Qt::Vertical (the default) or \l
Qt::Horizontal.
*/
void QAbstractSlider::setOrientation(Qt::Orientation orientation)
{
Q_D(QAbstractSlider);
if (d->orientation == orientation)
return;
d->orientation = orientation;
if (!testAttribute(Qt::WA_WState_OwnSizePolicy)) {
QSizePolicy sp = sizePolicy();
sp.transpose();
setSizePolicy(sp);
setAttribute(Qt::WA_WState_OwnSizePolicy, false);
}
update();
updateGeometry();
}
Qt::Orientation QAbstractSlider::orientation() const
{
Q_D(const QAbstractSlider);
return d->orientation;
}
/*!
\property QAbstractSlider::minimum
\brief the sliders's minimum value
When setting this property, the \l maximum is adjusted if
necessary to ensure that the range remains valid. Also the
slider's current value is adjusted to be within the new range.
*/
void QAbstractSlider::setMinimum(int min)
{
Q_D(QAbstractSlider);
setRange(min, qMax(d->maximum, min));
}
int QAbstractSlider::minimum() const
{
Q_D(const QAbstractSlider);
return d->minimum;
}
/*!
\property QAbstractSlider::maximum
\brief the slider's maximum value
When setting this property, the \l minimum is adjusted if
necessary to ensure that the range remains valid. Also the
slider's current value is adjusted to be within the new range.
*/
void QAbstractSlider::setMaximum(int max)
{
Q_D(QAbstractSlider);
setRange(qMin(d->minimum, max), max);
}
int QAbstractSlider::maximum() const
{
Q_D(const QAbstractSlider);
return d->maximum;
}
/*!
\property QAbstractSlider::singleStep
\brief the single step.
The smaller of two natural steps that an
abstract sliders provides and typically corresponds to the user
pressing an arrow key.
If the property is modified during an auto repeating key event, behavior
is undefined.
\sa pageStep
*/
void QAbstractSlider::setSingleStep(int step)
{
Q_D(QAbstractSlider);
if (step != d->singleStep)
d->setSteps(step, d->pageStep);
}
int QAbstractSlider::singleStep() const
{
Q_D(const QAbstractSlider);
return d->singleStep;
}
/*!
\property QAbstractSlider::pageStep
\brief the page step.
The larger of two natural steps that an abstract slider provides
and typically corresponds to the user pressing PageUp or PageDown.
\sa singleStep
*/
void QAbstractSlider::setPageStep(int step)
{
Q_D(QAbstractSlider);
if (step != d->pageStep)
d->setSteps(d->singleStep, step);
}
int QAbstractSlider::pageStep() const
{
Q_D(const QAbstractSlider);
return d->pageStep;
}
/*!
\property QAbstractSlider::tracking
\brief whether slider tracking is enabled
If tracking is enabled (the default), the slider emits the
valueChanged() signal while the slider is being dragged. If
tracking is disabled, the slider emits the valueChanged() signal
only when the user releases the slider.
\sa sliderDown
*/
void QAbstractSlider::setTracking(bool enable)
{
Q_D(QAbstractSlider);
d->tracking = enable;
}
bool QAbstractSlider::hasTracking() const
{
Q_D(const QAbstractSlider);
return d->tracking;
}
/*!
\property QAbstractSlider::sliderDown
\brief whether the slider is pressed down.
The property is set by subclasses in order to let the abstract
slider know whether or not \l tracking has any effect.
Changing the slider down property emits the sliderPressed() and
sliderReleased() signals.
*/
void QAbstractSlider::setSliderDown(bool down)
{
Q_D(QAbstractSlider);
bool doEmit = d->pressed != down;
d->pressed = down;
if (doEmit) {
if (down)
emit sliderPressed();
else
emit sliderReleased();
}
if (!down && d->position != d->value)
triggerAction(SliderMove);
}
bool QAbstractSlider::isSliderDown() const
{
Q_D(const QAbstractSlider);
return d->pressed;
}
/*!
\property QAbstractSlider::sliderPosition
\brief the current slider position
If \l tracking is enabled (the default), this is identical to \l value.
*/
void QAbstractSlider::setSliderPosition(int position)
{
Q_D(QAbstractSlider);
position = d->bound(position);
if (position == d->position)
return;
d->position = position;
if (!d->tracking)
update();
if (d->pressed)
emit sliderMoved(position);
if (d->tracking && !d->blocktracking)
triggerAction(SliderMove);
}
int QAbstractSlider::sliderPosition() const
{
Q_D(const QAbstractSlider);
return d->position;
}
/*!
\property QAbstractSlider::value
\brief the slider's current value
The slider forces the value to be within the legal range: \l
minimum <= \c value <= \l maximum.
Changing the value also changes the \l sliderPosition.
*/
int QAbstractSlider::value() const
{
Q_D(const QAbstractSlider);
return d->value;
}
void QAbstractSlider::setValue(int value)
{
Q_D(QAbstractSlider);
value = d->bound(value);
if (d->value == value && d->position == value)
return;
d->value = value;
if (d->position != value) {
d->position = value;
if (d->pressed)
emit sliderMoved((d->position = value));
}
#ifndef QT_NO_ACCESSIBILITY
QAccessible::updateAccessibility(this, 0, QAccessible::ValueChanged);
#endif
sliderChange(SliderValueChange);
emit valueChanged(value);
}
/*!
\property QAbstractSlider::invertedAppearance
\brief whether or not a slider shows its values inverted.
If this property is false (the default), the minimum and maximum will
be shown in its classic position for the inherited widget. If the
value is true, the minimum and maximum appear at their opposite location.
Note: This property makes most sense for sliders and dials. For
scroll bars, the visual effect of the scroll bar subcontrols depends on
whether or not the styles understand inverted appearance; most styles
ignore this property for scroll bars.
*/
bool QAbstractSlider::invertedAppearance() const
{
Q_D(const QAbstractSlider);
return d->invertedAppearance;
}
void QAbstractSlider::setInvertedAppearance(bool invert)
{
Q_D(QAbstractSlider);
d->invertedAppearance = invert;
update();
}
/*!
\property QAbstractSlider::invertedControls
\brief whether or not the slider inverts its wheel and key events.
If this property is false, scrolling the mouse wheel "up" and using keys
like page up will increase the slider's value towards its maximum. Otherwise
pressing page up will move value towards the slider's minimum.
*/
bool QAbstractSlider::invertedControls() const
{
Q_D(const QAbstractSlider);
return d->invertedControls;
}
void QAbstractSlider::setInvertedControls(bool invert)
{
Q_D(QAbstractSlider);
d->invertedControls = invert;
}
/*! Triggers a slider \a action. Possible actions are \l
SliderSingleStepAdd, \l SliderSingleStepSub, \l SliderPageStepAdd,
\l SliderPageStepSub, \l SliderToMinimum, \l SliderToMaximum, and \l
SliderMove.
\sa actionTriggered()
*/
void QAbstractSlider::triggerAction(SliderAction action)
{
Q_D(QAbstractSlider);
d->blocktracking = true;
switch (action) {
case SliderSingleStepAdd:
setSliderPosition(d->overflowSafeAdd(d->effectiveSingleStep()));
break;
case SliderSingleStepSub:
setSliderPosition(d->overflowSafeAdd(-d->effectiveSingleStep()));
break;
case SliderPageStepAdd:
setSliderPosition(d->overflowSafeAdd(d->pageStep));
break;
case SliderPageStepSub:
setSliderPosition(d->overflowSafeAdd(-d->pageStep));
break;
case SliderToMinimum:
setSliderPosition(d->minimum);
break;
case SliderToMaximum:
setSliderPosition(d->maximum);
break;
case SliderMove:
case SliderNoAction:
break;
};
emit actionTriggered(action);
d->blocktracking = false;
setValue(d->position);
}
/*! Sets action \a action to be triggered repetitively in intervals
of \a repeatTime, after an initial delay of \a thresholdTime.
\sa triggerAction() repeatAction()
*/
void QAbstractSlider::setRepeatAction(SliderAction action, int thresholdTime, int repeatTime)
{
Q_D(QAbstractSlider);
if ((d->repeatAction = action) == SliderNoAction) {
d->repeatActionTimer.stop();
} else {
d->repeatActionTime = repeatTime;
d->repeatActionTimer.start(thresholdTime, this);
}
}
/*!
Returns the current repeat action.
\sa setRepeatAction()
*/
QAbstractSlider::SliderAction QAbstractSlider::repeatAction() const
{
Q_D(const QAbstractSlider);
return d->repeatAction;
}
/*!\reimp
*/
void QAbstractSlider::timerEvent(QTimerEvent *e)
{
Q_D(QAbstractSlider);
if (e->timerId() == d->repeatActionTimer.timerId()) {
if (d->repeatActionTime) { // was threshold time, use repeat time next time
d->repeatActionTimer.start(d->repeatActionTime, this);
d->repeatActionTime = 0;
}
if (d->repeatAction == SliderPageStepAdd)
d->setAdjustedSliderPosition(d->overflowSafeAdd(d->pageStep));
else if (d->repeatAction == SliderPageStepSub)
d->setAdjustedSliderPosition(d->overflowSafeAdd(-d->pageStep));
else
triggerAction(d->repeatAction);
}
}
/*!
Reimplement this virtual function to track slider changes such as
\l SliderRangeChange, \l SliderOrientationChange, \l
SliderStepsChange, or \l SliderValueChange. The default
implementation only updates the display and ignores the \a change
parameter.
*/
void QAbstractSlider::sliderChange(SliderChange)
{
update();
}
bool QAbstractSliderPrivate::scrollByDelta(Qt::Orientation orientation, Qt::KeyboardModifiers modifiers, int delta)
{
Q_Q(QAbstractSlider);
int stepsToScroll = 0;
// in Qt scrolling to the right gives negative values.
if (orientation == Qt::Horizontal)
delta = -delta;
qreal offset = qreal(delta) / 120;
if ((modifiers & Qt::ControlModifier) || (modifiers & Qt::ShiftModifier)) {
// Scroll one page regardless of delta:
stepsToScroll = qBound(-pageStep, int(offset * pageStep), pageStep);
offset_accumulated = 0;
} else {
// Calculate how many lines to scroll. Depending on what delta is (and
// offset), we might end up with a fraction (e.g. scroll 1.3 lines). We can
// only scroll whole lines, so we keep the reminder until next event.
qreal stepsToScrollF =
#ifndef QT_NO_WHEELEVENT
QApplication::wheelScrollLines() *
#endif
offset * effectiveSingleStep();
// Check if wheel changed direction since last event:
if (offset_accumulated != 0 && (offset / offset_accumulated) < 0)
offset_accumulated = 0;
offset_accumulated += stepsToScrollF;
stepsToScroll = qBound(-pageStep, int(offset_accumulated), pageStep);
offset_accumulated -= int(offset_accumulated);
if (stepsToScroll == 0)
return false;
}
if (invertedControls)
stepsToScroll = -stepsToScroll;
int prevValue = value;
position = overflowSafeAdd(stepsToScroll); // value will be updated by triggerAction()
q->triggerAction(QAbstractSlider::SliderMove);
if (prevValue == value) {
offset_accumulated = 0;
return false;
}
return true;
}
/*!
\reimp
*/
#ifndef QT_NO_WHEELEVENT
void QAbstractSlider::wheelEvent(QWheelEvent * e)
{
Q_D(QAbstractSlider);
e->ignore();
int delta = e->delta();
if (d->scrollByDelta(e->orientation(), e->modifiers(), delta))
e->accept();
}
#endif
/*!
\reimp
*/
void QAbstractSlider::keyPressEvent(QKeyEvent *ev)
{
Q_D(QAbstractSlider);
SliderAction action = SliderNoAction;
#ifdef QT_KEYPAD_NAVIGATION
if (ev->isAutoRepeat()) {
if (d->firstRepeat.isNull())
d->firstRepeat = QTime::currentTime();
else if (1 == d->repeatMultiplier) {
// This is the interval in milli seconds which one key repetition
// takes.
const int repeatMSecs = d->firstRepeat.msecsTo(QTime::currentTime());
/**
* The time it takes to currently navigate the whole slider.
*/
const qreal currentTimeElapse = (qreal(maximum()) / singleStep()) * repeatMSecs;
/**
* This is an arbitrarily determined constant in msecs that
* specifies how long time it should take to navigate from the
* start to the end(excluding starting key auto repeat).
*/
const int SliderRepeatElapse = 2500;
d->repeatMultiplier = currentTimeElapse / SliderRepeatElapse;
}
}
else if (!d->firstRepeat.isNull()) {
d->firstRepeat = QTime();
d->repeatMultiplier = 1;
}
#endif
switch (ev->key()) {
#ifdef QT_KEYPAD_NAVIGATION
case Qt::Key_Select:
if (QApplication::keypadNavigationEnabled())
setEditFocus(!hasEditFocus());
else
ev->ignore();
break;
case Qt::Key_Back:
if (QApplication::keypadNavigationEnabled() && hasEditFocus()) {
setValue(d->origValue);
setEditFocus(false);
} else
ev->ignore();
break;
#endif
// It seems we need to use invertedAppearance for Left and right, otherwise, things look weird.
case Qt::Key_Left:
#ifdef QT_KEYPAD_NAVIGATION
// In QApplication::KeypadNavigationDirectional, we want to change the slider
// value if there is no left/right navigation possible and if this slider is not
// inside a tab widget.
if (QApplication::keypadNavigationEnabled()
&& (!hasEditFocus() && QApplication::navigationMode() == Qt::NavigationModeKeypadTabOrder
|| d->orientation == Qt::Vertical
|| !hasEditFocus()
&& (QWidgetPrivate::canKeypadNavigate(Qt::Horizontal) || QWidgetPrivate::inTabWidget(this)))) {
ev->ignore();
return;
}
if (QApplication::keypadNavigationEnabled() && d->orientation == Qt::Vertical)
action = d->invertedControls ? SliderSingleStepSub : SliderSingleStepAdd;
else
#endif
if (isRightToLeft())
action = d->invertedAppearance ? SliderSingleStepSub : SliderSingleStepAdd;
else
action = !d->invertedAppearance ? SliderSingleStepSub : SliderSingleStepAdd;
break;
case Qt::Key_Right:
#ifdef QT_KEYPAD_NAVIGATION
// Same logic as in Qt::Key_Left
if (QApplication::keypadNavigationEnabled()
&& (!hasEditFocus() && QApplication::navigationMode() == Qt::NavigationModeKeypadTabOrder
|| d->orientation == Qt::Vertical
|| !hasEditFocus()
&& (QWidgetPrivate::canKeypadNavigate(Qt::Horizontal) || QWidgetPrivate::inTabWidget(this)))) {
ev->ignore();
return;
}
if (QApplication::keypadNavigationEnabled() && d->orientation == Qt::Vertical)
action = d->invertedControls ? SliderSingleStepAdd : SliderSingleStepSub;
else
#endif
if (isRightToLeft())
action = d->invertedAppearance ? SliderSingleStepAdd : SliderSingleStepSub;
else
action = !d->invertedAppearance ? SliderSingleStepAdd : SliderSingleStepSub;
break;
case Qt::Key_Up:
#ifdef QT_KEYPAD_NAVIGATION
// In QApplication::KeypadNavigationDirectional, we want to change the slider
// value if there is no up/down navigation possible.
if (QApplication::keypadNavigationEnabled()
&& (QApplication::navigationMode() == Qt::NavigationModeKeypadTabOrder
|| d->orientation == Qt::Horizontal
|| !hasEditFocus() && QWidgetPrivate::canKeypadNavigate(Qt::Vertical))) {
ev->ignore();
break;
}
#endif
action = d->invertedControls ? SliderSingleStepSub : SliderSingleStepAdd;
break;
case Qt::Key_Down:
#ifdef QT_KEYPAD_NAVIGATION
// Same logic as in Qt::Key_Up
if (QApplication::keypadNavigationEnabled()
&& (QApplication::navigationMode() == Qt::NavigationModeKeypadTabOrder
|| d->orientation == Qt::Horizontal
|| !hasEditFocus() && QWidgetPrivate::canKeypadNavigate(Qt::Vertical))) {
ev->ignore();
break;
}
#endif
action = d->invertedControls ? SliderSingleStepAdd : SliderSingleStepSub;
break;
case Qt::Key_PageUp:
action = d->invertedControls ? SliderPageStepSub : SliderPageStepAdd;
break;
case Qt::Key_PageDown:
action = d->invertedControls ? SliderPageStepAdd : SliderPageStepSub;
break;
case Qt::Key_Home:
action = SliderToMinimum;
break;
case Qt::Key_End:
action = SliderToMaximum;
break;
default:
ev->ignore();
break;
}
if (action)
triggerAction(action);
}
/*!
\reimp
*/
void QAbstractSlider::changeEvent(QEvent *ev)
{
Q_D(QAbstractSlider);
switch (ev->type()) {
case QEvent::EnabledChange:
if (!isEnabled()) {
d->repeatActionTimer.stop();
setSliderDown(false);
}
// fall through...
default:
QWidget::changeEvent(ev);
}
}
/*!
\reimp
*/
bool QAbstractSlider::event(QEvent *e)
{
#ifdef QT_KEYPAD_NAVIGATION
Q_D(QAbstractSlider);
switch (e->type()) {
case QEvent::FocusIn:
d->origValue = d->value;
break;
default:
break;
}
#endif
return QWidget::event(e);
}
/*! \fn int QAbstractSlider::minValue() const
Use minimum() instead.
*/
/*! \fn int QAbstractSlider::maxValue() const
Use maximum() instead.
*/
/*! \fn int QAbstractSlider::lineStep() const
Use singleStep() instead.
*/
/*! \fn void QAbstractSlider::setMinValue(int v)
Use setMinimum() instead.
*/
/*! \fn void QAbstractSlider::setMaxValue(int v)
Use setMaximum() instead.
*/
/*! \fn void QAbstractSlider::setLineStep(int v)
Use setSingleStep() instead.
*/
/*! \fn void QAbstractSlider::addPage()
Use triggerAction(QAbstractSlider::SliderPageStepAdd) instead.
*/
/*! \fn void QAbstractSlider::subtractPage()
Use triggerAction(QAbstractSlider::SliderPageStepSub) instead.
*/
/*! \fn void QAbstractSlider::addLine()
Use triggerAction(QAbstractSlider::SliderSingleStepAdd) instead.
*/
/*! \fn void QAbstractSlider::subtractLine()
Use triggerAction(QAbstractSlider::SliderSingleStepSub) instead.
*/
/*! \fn void QAbstractSlider::setSteps(int single, int page)
Use setSingleStep(\a single) followed by setPageStep(\a page)
instead.
*/
QT_END_NAMESPACE