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Diffstat (limited to 'src/gui/widgets/qslider.cpp')
| -rw-r--r-- | src/gui/widgets/qslider.cpp | 652 |
1 files changed, 0 insertions, 652 deletions
diff --git a/src/gui/widgets/qslider.cpp b/src/gui/widgets/qslider.cpp deleted file mode 100644 index 026926a8a3..0000000000 --- a/src/gui/widgets/qslider.cpp +++ /dev/null @@ -1,652 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qslider.h" -#ifndef QT_NO_SLIDER -#ifndef QT_NO_ACCESSIBILITY -#include "qaccessible.h" -#endif -#include "qapplication.h" -#include "qevent.h" -#include "qpainter.h" -#include "qstyle.h" -#include "qstyleoption.h" -#include "private/qabstractslider_p.h" -#include "qdebug.h" - -QT_BEGIN_NAMESPACE - -class QSliderPrivate : public QAbstractSliderPrivate -{ - Q_DECLARE_PUBLIC(QSlider) -public: - QStyle::SubControl pressedControl; - int tickInterval; - QSlider::TickPosition tickPosition; - int clickOffset; - void init(); - void resetLayoutItemMargins(); - int pixelPosToRangeValue(int pos) const; - inline int pick(const QPoint &pt) const; - - QStyle::SubControl newHoverControl(const QPoint &pos); - bool updateHoverControl(const QPoint &pos); - QStyle::SubControl hoverControl; - QRect hoverRect; -}; - -void QSliderPrivate::init() -{ - Q_Q(QSlider); - pressedControl = QStyle::SC_None; - tickInterval = 0; - tickPosition = QSlider::NoTicks; - hoverControl = QStyle::SC_None; - q->setFocusPolicy(Qt::FocusPolicy(q->style()->styleHint(QStyle::SH_Button_FocusPolicy))); - QSizePolicy sp(QSizePolicy::Expanding, QSizePolicy::Fixed, QSizePolicy::Slider); - if (orientation == Qt::Vertical) - sp.transpose(); - q->setSizePolicy(sp); - q->setAttribute(Qt::WA_WState_OwnSizePolicy, false); - resetLayoutItemMargins(); -} - -void QSliderPrivate::resetLayoutItemMargins() -{ - Q_Q(QSlider); - QStyleOptionSlider opt; - q->initStyleOption(&opt); - setLayoutItemMargins(QStyle::SE_SliderLayoutItem, &opt); -} - -int QSliderPrivate::pixelPosToRangeValue(int pos) const -{ - Q_Q(const QSlider); - QStyleOptionSlider opt; - q->initStyleOption(&opt); - QRect gr = q->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderGroove, q); - QRect sr = q->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, q); - int sliderMin, sliderMax, sliderLength; - - if (orientation == Qt::Horizontal) { - sliderLength = sr.width(); - sliderMin = gr.x(); - sliderMax = gr.right() - sliderLength + 1; - } else { - sliderLength = sr.height(); - sliderMin = gr.y(); - sliderMax = gr.bottom() - sliderLength + 1; - } - return QStyle::sliderValueFromPosition(minimum, maximum, pos - sliderMin, - sliderMax - sliderMin, opt.upsideDown); -} - -inline int QSliderPrivate::pick(const QPoint &pt) const -{ - return orientation == Qt::Horizontal ? pt.x() : pt.y(); -} - -/*! - Initialize \a option with the values from this QSlider. This method - is useful for subclasses when they need a QStyleOptionSlider, but don't want - to fill in all the information themselves. - - \sa QStyleOption::initFrom() -*/ -void QSlider::initStyleOption(QStyleOptionSlider *option) const -{ - if (!option) - return; - - Q_D(const QSlider); - option->initFrom(this); - option->subControls = QStyle::SC_None; - option->activeSubControls = QStyle::SC_None; - option->orientation = d->orientation; - option->maximum = d->maximum; - option->minimum = d->minimum; - option->tickPosition = (QSlider::TickPosition)d->tickPosition; - option->tickInterval = d->tickInterval; - option->upsideDown = (d->orientation == Qt::Horizontal) ? - (d->invertedAppearance != (option->direction == Qt::RightToLeft)) - : (!d->invertedAppearance); - option->direction = Qt::LeftToRight; // we use the upsideDown option instead - option->sliderPosition = d->position; - option->sliderValue = d->value; - option->singleStep = d->singleStep; - option->pageStep = d->pageStep; - if (d->orientation == Qt::Horizontal) - option->state |= QStyle::State_Horizontal; -} - -bool QSliderPrivate::updateHoverControl(const QPoint &pos) -{ - Q_Q(QSlider); - QRect lastHoverRect = hoverRect; - QStyle::SubControl lastHoverControl = hoverControl; - bool doesHover = q->testAttribute(Qt::WA_Hover); - if (lastHoverControl != newHoverControl(pos) && doesHover) { - q->update(lastHoverRect); - q->update(hoverRect); - return true; - } - return !doesHover; -} - -QStyle::SubControl QSliderPrivate::newHoverControl(const QPoint &pos) -{ - Q_Q(QSlider); - QStyleOptionSlider opt; - q->initStyleOption(&opt); - opt.subControls = QStyle::SC_All; - QRect handleRect = q->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, q); - QRect grooveRect = q->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderGroove, q); - QRect tickmarksRect = q->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderTickmarks, q); - - if (handleRect.contains(pos)) { - hoverRect = handleRect; - hoverControl = QStyle::SC_SliderHandle; - } else if (grooveRect.contains(pos)) { - hoverRect = grooveRect; - hoverControl = QStyle::SC_SliderGroove; - } else if (tickmarksRect.contains(pos)) { - hoverRect = tickmarksRect; - hoverControl = QStyle::SC_SliderTickmarks; - } else { - hoverRect = QRect(); - hoverControl = QStyle::SC_None; - } - - return hoverControl; -} - -/*! - \class QSlider - \brief The QSlider widget provides a vertical or horizontal slider. - - \ingroup basicwidgets - - - The slider is the classic widget for controlling a bounded value. - It lets the user move a slider handle along a horizontal or vertical - groove and translates the handle's position into an integer value - within the legal range. - - QSlider has very few of its own functions; most of the functionality is in - QAbstractSlider. The most useful functions are setValue() to set - the slider directly to some value; triggerAction() to simulate - the effects of clicking (useful for shortcut keys); - setSingleStep(), setPageStep() to set the steps; and setMinimum() - and setMaximum() to define the range of the scroll bar. - - QSlider provides methods for controlling tickmarks. You can use - setTickPosition() to indicate where you want the tickmarks to be, - setTickInterval() to indicate how many of them you want. the - currently set tick position and interval can be queried using the - tickPosition() and tickInterval() functions, respectively. - - QSlider inherits a comprehensive set of signals: - \table - \header \o Signal \o Description - \row \o \l valueChanged() - \o Emitted when the slider's value has changed. The tracking() - determines whether this signal is emitted during user - interaction. - \row \o \l sliderPressed() - \o Emitted when the user starts to drag the slider. - \row \o \l sliderMoved() - \o Emitted when the user drags the slider. - \row \o \l sliderReleased() - \o Emitted when the user releases the slider. - \endtable - - QSlider only provides integer ranges. Note that although - QSlider handles very large numbers, it becomes difficult for users - to use a slider accurately for very large ranges. - - A slider accepts focus on Tab and provides both a mouse wheel and a - keyboard interface. The keyboard interface is the following: - - \list - \o Left/Right move a horizontal slider by one single step. - \o Up/Down move a vertical slider by one single step. - \o PageUp moves up one page. - \o PageDown moves down one page. - \o Home moves to the start (mininum). - \o End moves to the end (maximum). - \endlist - - \table 100% - \row \o \inlineimage macintosh-slider.png Screenshot of a Macintosh slider - \o A slider shown in the \l{Macintosh Style Widget Gallery}{Macintosh widget style}. - \row \o \inlineimage windows-slider.png Screenshot of a Windows XP slider - \o A slider shown in the \l{Windows XP Style Widget Gallery}{Windows XP widget style}. - \row \o \inlineimage plastique-slider.png Screenshot of a Plastique slider - \o A slider shown in the \l{Plastique Style Widget Gallery}{Plastique widget style}. - \endtable - - \sa QScrollBar, QSpinBox, QDial, {fowler}{GUI Design Handbook: Slider}, {Sliders Example} -*/ - - -/*! - \enum QSlider::TickPosition - - This enum specifies where the tick marks are to be drawn relative - to the slider's groove and the handle the user moves. - - \value NoTicks Do not draw any tick marks. - \value TicksBothSides Draw tick marks on both sides of the groove. - \value TicksAbove Draw tick marks above the (horizontal) slider - \value TicksBelow Draw tick marks below the (horizontal) slider - \value TicksLeft Draw tick marks to the left of the (vertical) slider - \value TicksRight Draw tick marks to the right of the (vertical) slider - - \omitvalue NoMarks - \omitvalue Above - \omitvalue Left - \omitvalue Below - \omitvalue Right - \omitvalue Both -*/ - - -/*! - Constructs a vertical slider with the given \a parent. -*/ -QSlider::QSlider(QWidget *parent) - : QAbstractSlider(*new QSliderPrivate, parent) -{ - d_func()->orientation = Qt::Vertical; - d_func()->init(); -} - -/*! - Constructs a slider with the given \a parent. The \a orientation - parameter determines whether the slider is horizontal or vertical; - the valid values are Qt::Vertical and Qt::Horizontal. -*/ - -QSlider::QSlider(Qt::Orientation orientation, QWidget *parent) - : QAbstractSlider(*new QSliderPrivate, parent) -{ - d_func()->orientation = orientation; - d_func()->init(); -} - -#ifdef QT3_SUPPORT -/*! - Use QSlider() and QObject::setObjectName() instead. - - \oldcode - QSlider *mySlider = new QSlider(parent, name); - \newcode - QSlider *mySlider = new QSlider(parent); - mySlider->setObjectName(name); - \endcode -*/ -QSlider::QSlider(QWidget *parent, const char *name) - : QAbstractSlider(*new QSliderPrivate, parent) -{ - setObjectName(QString::fromAscii(name)); - d_func()->orientation = Qt::Vertical; - d_func()->init(); -} - -/*! - Use QSlider() and QObject::setObjectName() instead. - - \oldcode - QSlider *mySlider = new QSlider(orientation, parent, name); - \newcode - QSlider *mySlider = new QSlider(orientation, parent); - mySlider->setObjectName(name); - \endcode -*/ -QSlider::QSlider(Qt::Orientation orientation, QWidget *parent, const char *name) - : QAbstractSlider(*new QSliderPrivate, parent) -{ - setObjectName(QString::fromAscii(name)); - d_func()->orientation = orientation; - d_func()->init(); -} - -/*! - Use QSlider(), QObject::setObjectName() and the functionality - inherited from QAbstractSlider instead. - - \oldcode - QSlider *mySlider = new QSlider(minValue, maxValue, pageStep, - value, orientation, parent, name); - \newcode - QSlider *mySlider = new QSlider(orientation, parent); - mySlider->setObjectName(name); - mySlider->setMinimum(minValue); - mySlider->setMaximum(maxValue); - mySlider->setPageStep(pageStep); - mySlider->setValue(value); - \endcode -*/ -QSlider::QSlider(int minValue, int maxValue, int pageStep, int value, Qt::Orientation orientation, - QWidget *parent, const char *name) - : QAbstractSlider(*new QSliderPrivate, parent) -{ - Q_D(QSlider); - setObjectName(QString::fromAscii(name)); - d->minimum = minValue; - d->maximum = maxValue; - d->pageStep = pageStep; - d->position = d->value = value; - d->orientation = orientation; - d->init(); -} -#endif - -/*! - Destroys this slider. -*/ -QSlider::~QSlider() -{ -} - -/*! - \reimp -*/ -void QSlider::paintEvent(QPaintEvent *) -{ - Q_D(QSlider); - QPainter p(this); - QStyleOptionSlider opt; - initStyleOption(&opt); - - opt.subControls = QStyle::SC_SliderGroove | QStyle::SC_SliderHandle; - if (d->tickPosition != NoTicks) - opt.subControls |= QStyle::SC_SliderTickmarks; - if (d->pressedControl) { - opt.activeSubControls = d->pressedControl; - opt.state |= QStyle::State_Sunken; - } else { - opt.activeSubControls = d->hoverControl; - } - - style()->drawComplexControl(QStyle::CC_Slider, &opt, &p, this); -} - -/*! - \reimp -*/ - -bool QSlider::event(QEvent *event) -{ - Q_D(QSlider); - - switch(event->type()) { - case QEvent::HoverEnter: - case QEvent::HoverLeave: - case QEvent::HoverMove: - if (const QHoverEvent *he = static_cast<const QHoverEvent *>(event)) - d->updateHoverControl(he->pos()); - break; - case QEvent::StyleChange: - case QEvent::MacSizeChange: - d->resetLayoutItemMargins(); - break; - default: - break; - } - return QAbstractSlider::event(event); -} - -/*! - \reimp -*/ -void QSlider::mousePressEvent(QMouseEvent *ev) -{ - Q_D(QSlider); - if (d->maximum == d->minimum || (ev->buttons() ^ ev->button())) { - ev->ignore(); - return; - } -#ifdef QT_KEYPAD_NAVIGATION - if (QApplication::keypadNavigationEnabled()) - setEditFocus(true); -#endif - ev->accept(); - if ((ev->button() & style()->styleHint(QStyle::SH_Slider_AbsoluteSetButtons)) == ev->button()) { - QStyleOptionSlider opt; - initStyleOption(&opt); - const QRect sliderRect = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this); - const QPoint center = sliderRect.center() - sliderRect.topLeft(); - // to take half of the slider off for the setSliderPosition call we use the center - topLeft - - setSliderPosition(d->pixelPosToRangeValue(d->pick(ev->pos() - center))); - triggerAction(SliderMove); - setRepeatAction(SliderNoAction); - d->pressedControl = QStyle::SC_SliderHandle; - update(); - } else if ((ev->button() & style()->styleHint(QStyle::SH_Slider_PageSetButtons)) == ev->button()) { - QStyleOptionSlider opt; - initStyleOption(&opt); - d->pressedControl = style()->hitTestComplexControl(QStyle::CC_Slider, - &opt, ev->pos(), this); - SliderAction action = SliderNoAction; - if (d->pressedControl == QStyle::SC_SliderGroove) { - const QRect sliderRect = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this); - int pressValue = d->pixelPosToRangeValue(d->pick(ev->pos() - sliderRect.center() + sliderRect.topLeft())); - d->pressValue = pressValue; - if (pressValue > d->value) - action = SliderPageStepAdd; - else if (pressValue < d->value) - action = SliderPageStepSub; - if (action) { - triggerAction(action); - setRepeatAction(action); - } - } - } else { - ev->ignore(); - return; - } - - if (d->pressedControl == QStyle::SC_SliderHandle) { - QStyleOptionSlider opt; - initStyleOption(&opt); - setRepeatAction(SliderNoAction); - QRect sr = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this); - d->clickOffset = d->pick(ev->pos() - sr.topLeft()); - update(sr); - setSliderDown(true); - } -} - -/*! - \reimp -*/ -void QSlider::mouseMoveEvent(QMouseEvent *ev) -{ - Q_D(QSlider); - if (d->pressedControl != QStyle::SC_SliderHandle) { - ev->ignore(); - return; - } - ev->accept(); - int newPosition = d->pixelPosToRangeValue(d->pick(ev->pos()) - d->clickOffset); - QStyleOptionSlider opt; - initStyleOption(&opt); - setSliderPosition(newPosition); -} - - -/*! - \reimp -*/ -void QSlider::mouseReleaseEvent(QMouseEvent *ev) -{ - Q_D(QSlider); - if (d->pressedControl == QStyle::SC_None || ev->buttons()) { - ev->ignore(); - return; - } - ev->accept(); - QStyle::SubControl oldPressed = QStyle::SubControl(d->pressedControl); - d->pressedControl = QStyle::SC_None; - setRepeatAction(SliderNoAction); - if (oldPressed == QStyle::SC_SliderHandle) - setSliderDown(false); - QStyleOptionSlider opt; - initStyleOption(&opt); - opt.subControls = oldPressed; - update(style()->subControlRect(QStyle::CC_Slider, &opt, oldPressed, this)); -} - -/*! - \reimp -*/ -QSize QSlider::sizeHint() const -{ - Q_D(const QSlider); - ensurePolished(); - const int SliderLength = 84, TickSpace = 5; - QStyleOptionSlider opt; - initStyleOption(&opt); - int thick = style()->pixelMetric(QStyle::PM_SliderThickness, &opt, this); - if (d->tickPosition & TicksAbove) - thick += TickSpace; - if (d->tickPosition & TicksBelow) - thick += TickSpace; - int w = thick, h = SliderLength; - if (d->orientation == Qt::Horizontal) { - w = SliderLength; - h = thick; - } - return style()->sizeFromContents(QStyle::CT_Slider, &opt, QSize(w, h), this).expandedTo(QApplication::globalStrut()); -} - -/*! - \reimp -*/ -QSize QSlider::minimumSizeHint() const -{ - Q_D(const QSlider); - QSize s = sizeHint(); - QStyleOptionSlider opt; - initStyleOption(&opt); - int length = style()->pixelMetric(QStyle::PM_SliderLength, &opt, this); - if (d->orientation == Qt::Horizontal) - s.setWidth(length); - else - s.setHeight(length); - return s; -} - -/*! - \property QSlider::tickPosition - \brief the tickmark position for this slider - - The valid values are described by the QSlider::TickPosition enum. - - The default value is \l QSlider::NoTicks. - - \sa tickInterval -*/ - -void QSlider::setTickPosition(TickPosition position) -{ - Q_D(QSlider); - d->tickPosition = position; - d->resetLayoutItemMargins(); - update(); - updateGeometry(); -} - -QSlider::TickPosition QSlider::tickPosition() const -{ - return d_func()->tickPosition; -} - -/*! - \property QSlider::tickInterval - \brief the interval between tickmarks - - This is a value interval, not a pixel interval. If it is 0, the - slider will choose between singleStep() and pageStep(). - - The default value is 0. - - \sa tickPosition, lineStep(), pageStep() -*/ - -void QSlider::setTickInterval(int ts) -{ - d_func()->tickInterval = qMax(0, ts); - update(); -} - -int QSlider::tickInterval() const -{ - return d_func()->tickInterval; -} - -/*! - \fn void QSlider::addStep() - - Use setValue() instead. -*/ - -/*! - \fn void QSlider::subtractStep() - - Use setValue() instead. -*/ - -/*! \internal - Returns the style option for slider. -*/ -Q_GUI_EXPORT QStyleOptionSlider qt_qsliderStyleOption(QSlider *slider) -{ - QStyleOptionSlider sliderOption; - slider->initStyleOption(&sliderOption); - return sliderOption; -} - -#endif - -QT_END_NAMESPACE |