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+/****************************************************************************
+**
+** 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 Qt3Support module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "q3rangecontrol.h"
+
+#ifndef QT_NO_SPINWIDGET
+
+#include "qabstractspinbox.h"
+#include "qevent.h"
+#include "qpainter.h"
+#include "qrect.h"
+#include "qstyle.h"
+#include "qstyleoption.h"
+#include "qtimer.h"
+
+QT_BEGIN_NAMESPACE
+
+class Q3SpinWidgetPrivate
+{
+public:
+ Q3SpinWidgetPrivate()
+ : upEnabled(true),
+ downEnabled(true),
+ theButton(0),
+ buttonDown(0),
+ timerUp(0),
+ bsyms(Q3SpinWidget::UpDownArrows),
+ ed (0) {}
+ uint upEnabled :1;
+ uint downEnabled :1;
+ uint theButton :2;
+ uint buttonDown :2;
+ uint timerUp : 1;
+ QRect up;
+ QRect down;
+ QTimer auRepTimer;
+ Q3SpinWidget::ButtonSymbols bsyms;
+ QWidget *ed;
+ void startTimer(int msec) { auRepTimer.start(msec, true); }
+ void startTimer(bool up, int msec) { timerUp = up; startTimer(msec); }
+ void stopTimer() { auRepTimer.stop(); }
+};
+
+/*!
+ \class Q3SpinWidget
+ \brief The Q3SpinWidget class is an internal range control related class.
+
+ \internal
+
+ Constructs an empty range control widget with parent \a parent
+ called \a name.
+
+*/
+
+Q3SpinWidget::Q3SpinWidget(QWidget* parent, const char* name)
+ : QWidget(parent, name)
+{
+ d = new Q3SpinWidgetPrivate();
+ connect(&d->auRepTimer, SIGNAL(timeout()), this, SLOT(timerDone()));
+ setFocusPolicy(Qt::StrongFocus);
+
+ arrange();
+ updateDisplay();
+}
+
+
+/*! Destroys the object and frees any allocated resources.
+
+*/
+
+Q3SpinWidget::~Q3SpinWidget()
+{
+ delete d;
+}
+
+/*! */
+QWidget * Q3SpinWidget::editWidget()
+{
+ return d->ed;
+}
+
+/*!
+ Sets the editing widget to \a w.
+*/
+void Q3SpinWidget::setEditWidget(QWidget * w)
+{
+ if (w) {
+ if (w->parentWidget() != this)
+ w->setParent(this);
+ setFocusProxy(w);
+ }
+ d->ed = w;
+ arrange();
+ updateDisplay();
+}
+
+/*! \reimp
+
+*/
+
+void Q3SpinWidget::mousePressEvent(QMouseEvent *e)
+{
+ if (e->button() != Qt::LeftButton) {
+ d->stopTimer();
+ d->buttonDown = 0;
+ d->theButton = 0;
+ repaint(d->down.united(d->up));
+ return;
+ }
+
+ uint oldButtonDown = d->buttonDown;
+
+ if (d->down.contains(e->pos()) && d->downEnabled)
+ d->buttonDown = 1;
+ else if (d->up.contains(e->pos()) && d->upEnabled)
+ d->buttonDown = 2;
+ else
+ d->buttonDown = 0;
+
+ d->theButton = d->buttonDown;
+ if (oldButtonDown != d->buttonDown) {
+ if (!d->buttonDown) {
+ repaint(d->down.united(d->up));
+ } else if (d->buttonDown & 1) {
+ repaint(d->down);
+ stepDown();
+ d->startTimer(false, 300);
+ } else if (d->buttonDown & 2) {
+ repaint(d->up);
+ stepUp();
+ d->startTimer(true, 300);
+ }
+ }
+
+ if (!oldButtonDown && !d->buttonDown)
+ e->ignore();
+
+}
+
+static QStyleOptionSpinBox getStyleOption(const Q3SpinWidget *spin)
+{
+ QStyleOptionSpinBox opt;
+ opt.init(spin);
+ opt.frame = true;
+ opt.subControls = 0;
+ opt.buttonSymbols = (QAbstractSpinBox::ButtonSymbols)spin->buttonSymbols();
+ opt.stepEnabled = 0;
+ if (spin->isUpEnabled())
+ opt.stepEnabled |= QAbstractSpinBox::StepUpEnabled;
+ if (spin->isDownEnabled())
+ opt.stepEnabled |= QAbstractSpinBox::StepDownEnabled;
+ opt.activeSubControls = 0;
+ return opt;
+}
+
+/*!
+
+*/
+
+void Q3SpinWidget::arrange()
+{
+ QStyleOptionSpinBox opt = getStyleOption(this);
+ d->up = style()->subControlRect(QStyle::CC_SpinBox, &opt, QStyle::SC_SpinBoxUp, this);
+ d->down = style()->subControlRect(QStyle::CC_SpinBox, &opt, QStyle::SC_SpinBoxDown, this);
+ if (d->ed) {
+ QRect r = style()->subControlRect(QStyle::CC_SpinBox, &opt,
+ QStyle::SC_SpinBoxEditField, this);
+ d->ed->setGeometry(r);
+ }
+}
+
+/*!
+
+*/
+
+void Q3SpinWidget::stepUp()
+{
+ emit stepUpPressed();
+}
+
+void Q3SpinWidget::resizeEvent(QResizeEvent*)
+{
+ arrange();
+}
+
+/*!
+
+*/
+
+void Q3SpinWidget::stepDown()
+{
+ emit stepDownPressed();
+}
+
+
+void Q3SpinWidget::timerDone()
+{
+ // we use a double timer to make it possible for users to do
+ // something with 0-timer on valueChanged.
+ QTimer::singleShot(1, this, SLOT(timerDoneEx()));
+}
+
+void Q3SpinWidget::timerDoneEx()
+{
+ if (!d->buttonDown)
+ return;
+ if (d->timerUp)
+ stepUp();
+ else
+ stepDown();
+ d->startTimer(100);
+}
+
+
+/*!
+ The event is passed in \a e.
+*/
+
+void Q3SpinWidget::mouseReleaseEvent(QMouseEvent *e)
+{
+ if (e->button() != Qt::LeftButton)
+ return;
+
+ uint oldButtonDown = d->theButton;
+ d->theButton = 0;
+ if (oldButtonDown != d->theButton) {
+ if (oldButtonDown & 1)
+ repaint(d->down);
+ else if (oldButtonDown & 2)
+ repaint(d->up);
+ }
+ d->stopTimer();
+ d->buttonDown = 0;
+
+ if (!oldButtonDown && !d->buttonDown)
+ e->ignore();
+}
+
+
+/*!
+ The event is passed in \a e.
+*/
+
+void Q3SpinWidget::mouseMoveEvent(QMouseEvent *e)
+{
+ if (!(e->state() & Qt::LeftButton))
+ return;
+
+ uint oldButtonDown = d->theButton;
+ if (oldButtonDown & 1 && !d->down.contains(e->pos())) {
+ d->stopTimer();
+ d->theButton = 0;
+ repaint(d->down);
+ } else if (oldButtonDown & 2 && !d->up.contains(e->pos())) {
+ d->stopTimer();
+ d->theButton = 0;
+ repaint(d->up);
+ } else if (!oldButtonDown && d->up.contains(e->pos()) && d->buttonDown & 2) {
+ d->startTimer(500);
+ d->theButton = 2;
+ repaint(d->up);
+ } else if (!oldButtonDown && d->down.contains(e->pos()) && d->buttonDown & 1) {
+ d->startTimer(500);
+ d->theButton = 1;
+ repaint(d->down);
+ }
+
+ if (!oldButtonDown && !d->buttonDown)
+ e->ignore();
+}
+
+
+/*!
+ The event is passed in \a e.
+*/
+#ifndef QT_NO_WHEELEVENT
+void Q3SpinWidget::wheelEvent(QWheelEvent *e)
+{
+ e->accept();
+ static float offset = 0;
+ static Q3SpinWidget* offset_owner = 0;
+ if (offset_owner != this) {
+ offset_owner = this;
+ offset = 0;
+ }
+ offset += -e->delta()/120;
+ if (QABS(offset) < 1)
+ return;
+ int ioff = int(offset);
+ int i;
+ for(i=0; i < QABS(ioff); i++)
+ offset > 0 ? stepDown() : stepUp();
+ offset -= ioff;
+}
+#endif
+
+/*!
+
+*/
+void Q3SpinWidget::paintEvent(QPaintEvent *)
+{
+ QPainter p(this);
+ QStyleOptionSpinBox opt = getStyleOption(this);
+
+ if (d->theButton & 1) {
+ opt.activeSubControls = QStyle::SC_SpinBoxDown;
+ opt.state |= QStyle::State_Sunken;
+ } else if (d->theButton & 2) {
+ opt.activeSubControls = QStyle::SC_SpinBoxUp;
+ opt.state |= QStyle::State_Sunken;
+ } else
+ opt.activeSubControls = QStyle::SC_None;
+ opt.rect = style()->subControlRect(QStyle::CC_SpinBox, &opt, QStyle::SC_SpinBoxFrame, this);
+ opt.subControls = QStyle::SC_All;
+ style()->drawComplexControl(QStyle::CC_SpinBox, &opt, &p, this);
+}
+
+
+// ### What does the QEvent passed in contain? It used to be the previous style.
+/*!
+ The previous style is passed in \a ev.
+*/
+void Q3SpinWidget::changeEvent(QEvent *ev)
+{
+ if(ev->type() == QEvent::StyleChange) {
+ arrange();
+ } else if(ev->type() == QEvent::ActivationChange) {
+ if (!isActiveWindow() && d->buttonDown) { //was active, but lost focus
+ d->stopTimer();
+ d->buttonDown = 0;
+ d->theButton = 0;
+ }
+ } else if(ev->type() == QEvent::EnabledChange) {
+ d->upEnabled = isEnabled();
+ d->downEnabled = isEnabled();
+ updateDisplay();
+ }
+ QWidget::changeEvent(ev);
+}
+
+/*!
+*/
+
+QRect Q3SpinWidget::upRect() const
+{
+ return d->up;
+}
+
+/*!
+*/
+
+QRect Q3SpinWidget::downRect() const
+{
+ return d->down;
+}
+
+/*!
+*/
+
+void Q3SpinWidget::updateDisplay()
+{
+ if (!isEnabled()) {
+ d->upEnabled = false;
+ d->downEnabled = false;
+ }
+ if (d->theButton & 1 && (d->downEnabled) == 0) {
+ d->theButton &= ~1;
+ d->buttonDown &= ~1;
+ }
+
+ if (d->theButton & 2 && (d->upEnabled) == 0) {
+ d->theButton &= ~2;
+ d->buttonDown &= ~2;
+ }
+ repaint();
+}
+
+/*!
+ Sets up-enabled to \a on.
+*/
+
+void Q3SpinWidget::setUpEnabled(bool on)
+{
+ if ((bool)d->upEnabled != on) {
+ d->upEnabled = on;
+ updateDisplay();
+ }
+}
+
+/*!
+*/
+
+bool Q3SpinWidget::isUpEnabled() const
+{
+ return d->upEnabled;
+}
+
+/*!
+ Sets down-enabled to \a on.
+*/
+
+void Q3SpinWidget::setDownEnabled(bool on)
+{
+ if ((bool)d->downEnabled != on) {
+ d->downEnabled = on;
+ updateDisplay();
+ }
+}
+
+/*!
+*/
+
+bool Q3SpinWidget::isDownEnabled() const
+{
+ return d->downEnabled;
+}
+
+/*!
+ Sets the button symbol to \a bs.
+*/
+
+void Q3SpinWidget::setButtonSymbols(ButtonSymbols bs)
+{
+ d->bsyms = bs;
+}
+
+/*!
+*/
+
+Q3SpinWidget::ButtonSymbols Q3SpinWidget::buttonSymbols() const
+{
+ return d->bsyms;
+}
+
+QT_END_NAMESPACE
+
+#endif
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