/** Intializes the PartResizerWidget
@param d the Device the Partition is on
@param p the Partition to show and/or resize
@param minFirst the minimum value for the first sector
@param maxLast the maximum value for the last sector
*/
void PartResizerWidget::init(Device& d, Partition& p, qint64 minFirst, qint64 maxLast, bool read_only, bool move_allowed)
{
setDevice(d);
setPartition(p);
setMinimumFirstSector(minFirst);
setMaximumLastSector(maxLast);
setReadOnly(read_only);
setMoveAllowed(move_allowed);
setMinimumLength(qMax(partition().sectorsUsed(), partition().minimumSectors()));
setMaximumLength(qMin(totalSectors(), partition().maximumSectors()));
// set margins to accommodate to top/bottom button asymmetric layouts
QStyleOptionButton bOpt;
bOpt.initFrom(this);
QRect buttonRect(style()->subElementRect(QStyle::SE_PushButtonContents, &bOpt));
int asym = (rect().bottom() - buttonRect.bottom()) - (buttonRect.top() - rect().top());
if (asym > 0)
setContentsMargins(0, asym, 0, 0);
else
setContentsMargins(0, 0, 0, asym);
if (!readOnly())
{
QPixmap pixmap(handleWidth(), handleHeight());
pixmap.fill(Qt::transparent);
QPainter p(&pixmap);
QStyleOption opt;
opt.state |= QStyle::State_Horizontal;
opt.rect = pixmap.rect().adjusted(0, 2, 0, -2);
style()->drawControl(QStyle::CE_Splitter, &opt, &p, this);
leftHandle().setPixmap(pixmap);
rightHandle().setPixmap(pixmap);
leftHandle().setFixedSize(handleWidth(), handleHeight());
rightHandle().setFixedSize(handleWidth(), handleHeight());
}
delete m_PartWidget;
m_PartWidget = new PartWidget(this, &partition());
if (!readOnly())
{
leftHandle().setCursor(Qt::SizeHorCursor);
rightHandle().setCursor(Qt::SizeHorCursor);
}
if (moveAllowed())
partWidget().setCursor(Qt::SizeAllCursor);
partWidget().setToolTip(QString());
updatePositions();
}
void QSplitter::setRubberBand(int pos)
{
Q_D(QSplitter);
if (pos < 0) {
if (d->rubberBand)
QTimer::singleShot(0, d->rubberBand, SLOT(deleteLater()));
return;
}
QRect r = contentsRect();
const int rBord = 3; // customizable?
int hw = handleWidth();
if (!d->rubberBand) {
d->rubberBand = new QRubberBand(QRubberBand::Line);
// For accessibility to identify this special widget.
d->rubberBand->setObjectName(QLatin1String("qt_rubberband"));
}
if (d->orient == Qt::Horizontal)
d->rubberBand->setGeometry(QRect(QPoint(pos + hw / 2 - rBord, r.y()),
QSize(2 * rBord, r.height())).translated(mapToGlobal(QPoint())));
else
d->rubberBand->setGeometry(QRect(QPoint(r.x(), pos + hw / 2 - rBord),
QSize(r.width(), 2 * rBord)).translated(mapToGlobal(QPoint())));
if (!d->rubberBand->isVisible())
d->rubberBand->show();
}
void TerminalSplitter::recursiveCleanup()
{
/* Clean away empty splitters after a terminal was removed. */
QObjectList* list = queryList("TerminalSplitter", 0, false, false);
QObjectListIt it(*list);
QObject *obj;
while ((obj = it.current()) != 0)
{
++it;
TerminalSplitter* splitter = static_cast<TerminalSplitter*>(obj);
splitter->recursiveCleanup();
}
if (count() == 0)
deleteLater();
else
{
// Update minimum sizes.
if (orientation() == TerminalSplitter::Horizontal)
{
int minimumWidth = (terminalCount() > 1) ?
terminalCount()*150+handleWidth() : terminalCount()*150;
setMinimumSize(QSize(minimumWidth, minimumHeight()));
}
else if (orientation() == TerminalSplitter::Vertical)
{
int minimumHeight = (terminalCount() > 1) ?
terminalCount()*70+handleWidth() : terminalCount()*70;
setMinimumSize(QSize(minimumWidth(), minimumHeight));
}
}
}
int QSplitter::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QFrame::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
if (_id < 1)
qt_static_metacall(this, _c, _id, _a);
_id -= 1;
}
#ifndef QT_NO_PROPERTIES
else if (_c == QMetaObject::ReadProperty) {
void *_v = _a[0];
switch (_id) {
case 0: *reinterpret_cast< Qt::Orientation*>(_v) = orientation(); break;
case 1: *reinterpret_cast< bool*>(_v) = opaqueResize(); break;
case 2: *reinterpret_cast< int*>(_v) = handleWidth(); break;
case 3: *reinterpret_cast< bool*>(_v) = childrenCollapsible(); break;
}
_id -= 4;
} else if (_c == QMetaObject::WriteProperty) {
void *_v = _a[0];
switch (_id) {
case 0: setOrientation(*reinterpret_cast< Qt::Orientation*>(_v)); break;
case 1: setOpaqueResize(*reinterpret_cast< bool*>(_v)); break;
case 2: setHandleWidth(*reinterpret_cast< int*>(_v)); break;
case 3: setChildrenCollapsible(*reinterpret_cast< bool*>(_v)); break;
}
_id -= 4;
} else if (_c == QMetaObject::ResetProperty) {
_id -= 4;
} else if (_c == QMetaObject::QueryPropertyDesignable) {
_id -= 4;
} else if (_c == QMetaObject::QueryPropertyScriptable) {
_id -= 4;
} else if (_c == QMetaObject::QueryPropertyStored) {
_id -= 4;
} else if (_c == QMetaObject::QueryPropertyEditable) {
_id -= 4;
} else if (_c == QMetaObject::QueryPropertyUser) {
_id -= 4;
}
#endif // QT_NO_PROPERTIES
return _id;
}
void PartResizerWidget::mouseMoveEvent(QMouseEvent* event)
{
int x = event->pos().x() - m_Hotspot;
if (draggedWidget() == &leftHandle())
{
const qint64 newFirstSector = qMax(minimumFirstSector() + x * sectorsPerPixel(), 0LL);
updateFirstSector(newFirstSector);
}
else if (draggedWidget() == &rightHandle())
{
const qint64 newLastSector = qMin(minimumFirstSector() + (x - rightHandle().width()) * sectorsPerPixel(), maximumLastSector());
updateLastSector(newLastSector);
}
else if (draggedWidget() == &partWidget() && moveAllowed())
{
const qint64 newFirstSector = qMax(minimumFirstSector() + (x - handleWidth()) * sectorsPerPixel(), 0LL);
movePartition(newFirstSector);
}
}
/*!
Saves the state of the splitter's layout.
Typically this is used in conjunction with QSettings to remember the size
for a future session. A version number is stored as part of the data.
Here is an example:
\snippet doc/src/snippets/splitter/splitter.cpp 1
\sa restoreState()
*/
QByteArray QSplitter::saveState() const
{
Q_D(const QSplitter);
int version = 0;
QByteArray data;
QDataStream stream(&data, QIODevice::WriteOnly);
stream << qint32(SplitterMagic);
stream << qint32(version);
QList<int> list;
for (int i = 0; i < d->list.size(); ++i) {
QSplitterLayoutStruct *s = d->list.at(i);
list.append(s->sizer);
}
stream << list;
stream << childrenCollapsible();
stream << qint32(handleWidth());
stream << opaqueResize();
stream << qint32(orientation());
return data;
}
void QSplitter::setRubberBand(int pos)
{
Q_D(QSplitter);
if (pos < 0) {
if (d->rubberBand)
d->rubberBand->deleteLater();
return;
}
QRect r = contentsRect();
const int rBord = 3; // customizable?
int hw = handleWidth();
if (!d->rubberBand) {
QBoolBlocker b(d->blockChildAdd);
d->rubberBand = new QRubberBand(QRubberBand::Line, this);
// For accessibility to identify this special widget.
d->rubberBand->setObjectName(QLatin1String("qt_rubberband"));
}
const QRect newGeom = d->orient == Qt::Horizontal ? QRect(QPoint(pos + hw / 2 - rBord, r.y()), QSize(2 * rBord, r.height()))
: QRect(QPoint(r.x(), pos + hw / 2 - rBord), QSize(r.width(), 2 * rBord));
d->rubberBand->setGeometry(newGeom);
d->rubberBand->show();
}
int PartResizerWidget::partWidgetStart() const
{
return handleWidth() + (partition().firstSector() - minimumFirstSector()) / sectorsPerPixel();
}
qint64 PartResizerWidget::sectorsPerPixel() const
{
return totalSectors() / (width() - 2 * handleWidth());
}