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#include "qtabwidget.h"
#ifndef QT_NO_TABWIDGET
#include "private/qwidget_p.h"
#include "private/qtabbar_p.h"
#include "qapplication.h"
#include "qbitmap.h"
#include "qdesktopwidget.h"
#include "qevent.h"
#include "qlayout.h"
#include "qstackedwidget.h"
#include "qstyle.h"
#include "qstyleoption.h"
#include "qstylepainter.h"
#include "qtabbar.h"
#include "qtoolbutton.h"
QT_BEGIN_NAMESPACE
/*!
\class QTabWidget
\brief The QTabWidget class provides a stack of tabbed widgets.
\ingroup organizers
\ingroup basicwidgets
A tab widget provides a tab bar (see QTabBar) and a "page area"
that is used to display pages related to each tab. By default, the
tab bar is shown above the page area, but different configurations
are available (see \l{TabPosition}). Each tab is associated with a
different widget (called a page). Only the current page is shown in
the page area; all the other pages are hidden. The user can show a
different page by clicking on its tab or by pressing its
Alt+\e{letter} shortcut if it has one.
The normal way to use QTabWidget is to do the following:
\list 1
\i Create a QTabWidget.
\i Create a QWidget for each of the pages in the tab dialog, but
do not specify parent widgets for them.
\i Insert child widgets into the page widget, using layouts to
position them as normal.
\i Call addTab() or insertTab() to put the page widgets into the
tab widget, giving each tab a suitable label with an optional
keyboard shortcut.
\endlist
The position of the tabs is defined by \l tabPosition, their shape
by \l tabShape.
The signal currentChanged() is emitted when the user selects a
page.
The current page index is available as currentIndex(), the current
page widget with currentWidget(). You can retrieve a pointer to a
page widget with a given index using widget(), and can find the
index position of a widget with indexOf(). Use setCurrentWidget()
or setCurrentIndex() to show a particular page.
You can change a tab's text and icon using setTabText() or
setTabIcon(). A tab and its associated page can be removed with
removeTab().
Each tab is either enabled or disabled at any given time (see
setTabEnabled()). If a tab is enabled, the tab text is drawn
normally and the user can select that tab. If it is disabled, the
tab is drawn in a different way and the user cannot select that
tab. Note that even if a tab is disabled, the page can still be
visible, for example if all of the tabs happen to be disabled.
Tab widgets can be a very good way to split up a complex dialog.
An alternative is to use a QStackedWidget for which you provide some
means of navigating between pages, for example, a QToolBar or a
QListWidget.
Most of the functionality in QTabWidget is provided by a QTabBar
(at the top, providing the tabs) and a QStackedWidget (most of the
area, organizing the individual pages).
\table 100%
\row \o \inlineimage windowsxp-tabwidget.png Screenshot of a Windows XP style tab widget
\o \inlineimage macintosh-tabwidget.png Screenshot of a Macintosh style tab widget
\o \inlineimage plastique-tabwidget.png Screenshot of a Plastique style tab widget
\row \o A Windows XP style tab widget.
\o A Macintosh style tab widget.
\o A Plastique style tab widget.
\endtable
\sa QTabBar, QStackedWidget, QToolBox, {Tab Dialog Example}
*/
/*!
\enum QTabWidget::TabPosition
This enum type defines where QTabWidget draws the tab row:
\value North The tabs are drawn above the pages.
\value South The tabs are drawn below the pages.
\value West The tabs are drawn to the left of the pages.
\value East The tabs are drawn to the right of the pages.
\omitvalue Bottom
\omitvalue Top
*/
/*!
\enum QTabWidget::TabShape
This enum type defines the shape of the tabs:
\value Rounded The tabs are drawn with a rounded look. This is the default
shape.
\value Triangular The tabs are drawn with a triangular look.
*/
/*!
\fn void QTabWidget::selected(const QString &tabLabel)
This signal is emitted whenever a tab is selected (raised),
including during the first show().
You can normally use currentChanged() instead.
*/
/*!
\fn void QTabWidget::currentChanged(int index)
This signal is emitted whenever the current page index changes.
The parameter is the new current page \a index position, or -1
if there isn't a new one (for example, if there are no widgets
in the QTabWidget)
\sa currentWidget() currentIndex
*/
/*!
\fn void QTabWidget::tabCloseRequested(int index)
\since 4.5
This signal is emitted when the close button on a tab is clicked.
The \a index is the index that should be removed.
\sa setTabsClosable()
*/
class QTabWidgetPrivate : public QWidgetPrivate
{
Q_DECLARE_PUBLIC(QTabWidget)
public:
QTabWidgetPrivate();
~QTabWidgetPrivate();
void updateTabBarPosition();
void _q_showTab(int);
void _q_removeTab(int);
void _q_tabMoved(int from, int to);
void init();
QTabBar *tabs;
QStackedWidget *stack;
QRect panelRect;
bool dirty;
QTabWidget::TabPosition pos;
QTabWidget::TabShape shape;
int alignment;
QWidget *leftCornerWidget;
QWidget *rightCornerWidget;
};
QTabWidgetPrivate::QTabWidgetPrivate()
: tabs(0), stack(0), dirty(true),
pos(QTabWidget::North), shape(QTabWidget::Rounded),
leftCornerWidget(0), rightCornerWidget(0)
{}
QTabWidgetPrivate::~QTabWidgetPrivate()
{}
void QTabWidgetPrivate::init()
{
Q_Q(QTabWidget);
stack = new QStackedWidget(q);
stack->setObjectName(QLatin1String("qt_tabwidget_stackedwidget"));
stack->setLineWidth(0);
// hack so that QMacStyle::layoutSpacing() can detect tab widget pages
stack->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred, QSizePolicy::TabWidget));
QObject::connect(stack, SIGNAL(widgetRemoved(int)), q, SLOT(_q_removeTab(int)));
QTabBar *tabBar = new QTabBar(q);
tabBar->setObjectName(QLatin1String("qt_tabwidget_tabbar"));
tabBar->setDrawBase(false);
q->setTabBar(tabBar);
q->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding,
QSizePolicy::TabWidget));
#ifdef QT_KEYPAD_NAVIGATION
if (QApplication::keypadNavigationEnabled())
q->setFocusPolicy(Qt::NoFocus);
else
#endif
q->setFocusPolicy(Qt::TabFocus);
q->setFocusProxy(tabs);
q->setTabPosition(static_cast<QTabWidget::TabPosition> (q->style()->styleHint(
QStyle::SH_TabWidget_DefaultTabPosition, 0, q )));
}
/*!
Initialize \a option with the values from this QTabWidget. This method is useful
for subclasses when they need a QStyleOptionTabWidgetFrame, but don't want to fill
in all the information themselves.
\sa QStyleOption::initFrom() QTabBar::initStyleOption()
*/
void QTabWidget::initStyleOption(QStyleOptionTabWidgetFrame *option) const
{
if (!option)
return;
Q_D(const QTabWidget);
option->initFrom(this);
if (documentMode())
option->lineWidth = 0;
else
option->lineWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth, 0, this);
int exth = style()->pixelMetric(QStyle::PM_TabBarBaseHeight, 0, this);
QSize t(0, d->stack->frameWidth());
if (d->tabs->isVisibleTo(const_cast<QTabWidget *>(this))) {
t = d->tabs->sizeHint();
if (documentMode()) {
if (tabPosition() == East || tabPosition() == West) {
t.setHeight(height());
} else {
t.setWidth(width());
}
}
}
if (d->rightCornerWidget) {
const QSize rightCornerSizeHint = d->rightCornerWidget->sizeHint();
const QSize bounds(rightCornerSizeHint.width(), t.height() - exth);
option->rightCornerWidgetSize = rightCornerSizeHint.boundedTo(bounds);
} else {
option->rightCornerWidgetSize = QSize(0, 0);
}
if (d->leftCornerWidget) {
const QSize leftCornerSizeHint = d->leftCornerWidget->sizeHint();
const QSize bounds(leftCornerSizeHint.width(), t.height() - exth);
option->leftCornerWidgetSize = leftCornerSizeHint.boundedTo(bounds);
} else {
option->leftCornerWidgetSize = QSize(0, 0);
}
switch (d->pos) {
case QTabWidget::North:
option->shape = d->shape == QTabWidget::Rounded ? QTabBar::RoundedNorth
: QTabBar::TriangularNorth;
break;
case QTabWidget::South:
option->shape = d->shape == QTabWidget::Rounded ? QTabBar::RoundedSouth
: QTabBar::TriangularSouth;
break;
case QTabWidget::West:
option->shape = d->shape == QTabWidget::Rounded ? QTabBar::RoundedWest
: QTabBar::TriangularWest;
break;
case QTabWidget::East:
option->shape = d->shape == QTabWidget::Rounded ? QTabBar::RoundedEast
: QTabBar::TriangularEast;
break;
}
option->tabBarSize = t;
if (QStyleOptionTabWidgetFrameV2 *tabframe = qstyleoption_cast<QStyleOptionTabWidgetFrameV2*>(option)) {
QRect tbRect = tabBar()->geometry();
QRect selectedTabRect = tabBar()->tabRect(tabBar()->currentIndex());
tabframe->tabBarRect = tbRect;
selectedTabRect.moveTopLeft(selectedTabRect.topLeft() + tbRect.topLeft());
tabframe->selectedTabRect = selectedTabRect;
}
}
/*!
Constructs a tabbed widget with parent \a parent.
*/
QTabWidget::QTabWidget(QWidget *parent)
: QWidget(*new QTabWidgetPrivate, parent, 0)
{
Q_D(QTabWidget);
d->init();
}
#ifdef QT3_SUPPORT
/*!
Use one of the constructors that doesn't take the \a name
argument and then use setObjectName() instead.
*/
QTabWidget::QTabWidget(QWidget *parent, const char *name, Qt::WindowFlags f)
: QWidget(*new QTabWidgetPrivate, parent, f)
{
Q_D(QTabWidget);
setObjectName(QString::fromAscii(name));
d->init();
}
#endif
/*!
Destroys the tabbed widget.
*/
QTabWidget::~QTabWidget()
{
}
/*!
\fn int QTabWidget::addTab(QWidget *page, const QString &label)
Adds a tab with the given \a page and \a label to the tab widget,
and returns the index of the tab in the tab bar.
If the tab's \a label contains an ampersand, the letter following
the ampersand is used as a shortcut for the tab, e.g. if the
label is "Bro\&wse" then Alt+W becomes a shortcut which will
move the focus to this tab.
\note If you call addTab() after show(), the layout system will try
to adjust to the changes in its widgets hierarchy and may cause
flicker. To prevent this, you can set the QWidget::updatesEnabled
property to false prior to changes; remember to set the property
to true when the changes are done, making the widget receive paint
events again.
\sa insertTab()
*/
int QTabWidget::addTab(QWidget *child, const QString &label)
{
return insertTab(-1, child, label);
}
/*!
\fn int QTabWidget::addTab(QWidget *page, const QIcon &icon, const QString &label)
\overload
Adds a tab with the given \a page, \a icon, and \a label to the tab
widget, and returns the index of the tab in the tab bar.
This function is the same as addTab(), but with an additional \a
icon.
*/
int QTabWidget::addTab(QWidget *child, const QIcon& icon, const QString &label)
{
return insertTab(-1, child, icon, label);
}
/*!
\fn int QTabWidget::insertTab(int index, QWidget *page, const QString &label)
Inserts a tab with the given \a label and \a page into the tab
widget at the specified \a index, and returns the index of the
inserted tab in the tab bar.
The label is displayed in the tab and may vary in appearance depending
on the configuration of the tab widget.
If the tab's \a label contains an ampersand, the letter following
the ampersand is used as a shortcut for the tab, e.g. if the
label is "Bro\&wse" then Alt+W becomes a shortcut which will
move the focus to this tab.
If \a index is out of range, the tab is simply appended.
Otherwise it is inserted at the specified position.
If the QTabWidget was empty before this function is called, the
new page becomes the current page. Inserting a new tab at an index
less than or equal to the current index will increment the current
index, but keep the current page.
\note If you call insertTab() after show(), the layout system will try
to adjust to the changes in its widgets hierarchy and may cause
flicker. To prevent this, you can set the QWidget::updatesEnabled
property to false prior to changes; remember to set the property
to true when the changes are done, making the widget receive paint
events again.
\sa addTab()
*/
int QTabWidget::insertTab(int index, QWidget *w, const QString &label)
{
return insertTab(index, w, QIcon(), label);
}
/*!
\fn int QTabWidget::insertTab(int index, QWidget *page, const QIcon& icon, const QString &label)
\overload
Inserts a tab with the given \a label, \a page, and \a icon into
the tab widget at the specified \a index, and returns the index of the
inserted tab in the tab bar.
This function is the same as insertTab(), but with an additional
\a icon.
*/
int QTabWidget::insertTab(int index, QWidget *w, const QIcon& icon, const QString &label)
{
Q_D(QTabWidget);
if(!w)
return -1;
index = d->stack->insertWidget(index, w);
d->tabs->insertTab(index, icon, label);
setUpLayout();
tabInserted(index);
return index;
}
/*!
Defines a new \a label for the page at position \a index's tab.
If the provided text contains an ampersand character ('&'), a
shortcut is automatically created for it. The character that
follows the '&' will be used as the shortcut key. Any previous
shortcut will be overwritten, or cleared if no shortcut is defined
by the text. See the \l {QShortcut#mnemonic}{QShortcut}
documentation for details (to display an actual ampersand, use
'&&').
*/
void QTabWidget::setTabText(int index, const QString &label)
{
Q_D(QTabWidget);
d->tabs->setTabText(index, label);
setUpLayout();
}
/*!
Returns the label text for the tab on the page at position \a index.
*/
QString QTabWidget::tabText(int index) const
{
Q_D(const QTabWidget);
return d->tabs->tabText(index);
}
/*!
\overload
Sets the \a icon for the tab at position \a index.
*/
void QTabWidget::setTabIcon(int index, const QIcon &icon)
{
Q_D(QTabWidget);
d->tabs->setTabIcon(index, icon);
setUpLayout();
}
/*!
Returns the icon for the tab on the page at position \a index.
*/
QIcon QTabWidget::tabIcon(int index) const
{
Q_D(const QTabWidget);
return d->tabs->tabIcon(index);
}
/*!
Returns true if the page at position \a index is enabled; otherwise returns false.
\sa setTabEnabled(), QWidget::isEnabled()
*/
bool QTabWidget::isTabEnabled(int index) const
{
Q_D(const QTabWidget);
return d->tabs->isTabEnabled(index);
}
/*!
If \a enable is true, the page at position \a index is enabled; otherwise the page at position \a index is
disabled. The page's tab is redrawn appropriately.
QTabWidget uses QWidget::setEnabled() internally, rather than
keeping a separate flag.
Note that even a disabled tab/page may be visible. If the page is
visible already, QTabWidget will not hide it; if all the pages are
disabled, QTabWidget will show one of them.
\sa isTabEnabled(), QWidget::setEnabled()
*/
void QTabWidget::setTabEnabled(int index, bool enable)
{
Q_D(QTabWidget);
d->tabs->setTabEnabled(index, enable);
}
/*!
\fn void QTabWidget::setCornerWidget(QWidget *widget, Qt::Corner corner)
Sets the given \a widget to be shown in the specified \a corner of the
tab widget. The geometry of the widget is determined based on the widget's
sizeHint() and the style().
Only the horizontal element of the \a corner will be used.
Passing 0 shows no widget in the corner.
Any previously set corner widget is hidden.
All widgets set here will be deleted by the tab widget when it is
destroyed unless you separately reparent the widget after setting
some other corner widget (or 0).
Note: Corner widgets are designed for \l North and \l South tab positions;
other orientations are known to not work properly.
\sa cornerWidget(), setTabPosition()
*/
void QTabWidget::setCornerWidget(QWidget * widget, Qt::Corner corner)
{
Q_D(QTabWidget);
if (widget && widget->parentWidget() != this)
widget->setParent(this);
if (corner & Qt::TopRightCorner) {
if (d->rightCornerWidget)
d->rightCornerWidget->hide();
d->rightCornerWidget = widget;
} else {
if (d->leftCornerWidget)
d->leftCornerWidget->hide();
d->leftCornerWidget = widget;
}
setUpLayout();
}
/*!
Returns the widget shown in the \a corner of the tab widget or 0.
*/
QWidget * QTabWidget::cornerWidget(Qt::Corner corner) const
{
Q_D(const QTabWidget);
if (corner & Qt::TopRightCorner)
return d->rightCornerWidget;
return d->leftCornerWidget;
}
/*!
Removes the tab at position \a index from this stack of widgets.
The page widget itself is not deleted.
\sa addTab(), insertTab()
*/
void QTabWidget::removeTab(int index)
{
Q_D(QTabWidget);
if (QWidget *w = d->stack->widget(index))
d->stack->removeWidget(w);
}
/*!
Returns a pointer to the page currently being displayed by the tab
dialog. The tab dialog does its best to make sure that this value
is never 0 (but if you try hard enough, it can be).
\sa currentIndex(), setCurrentWidget()
*/
QWidget * QTabWidget::currentWidget() const
{
Q_D(const QTabWidget);
return d->stack->currentWidget();
}
/*!
Makes \a widget the current widget. The \a widget used must be a page in
this tab widget.
\sa addTab(), setCurrentIndex(), currentWidget()
*/
void QTabWidget::setCurrentWidget(QWidget *widget)
{
Q_D(const QTabWidget);
d->tabs->setCurrentIndex(indexOf(widget));
}
/*!
\property QTabWidget::currentIndex
\brief the index position of the current tab page
The current index is -1 if there is no current widget.
By default, this property contains a value of -1 because there are initially
no tabs in the widget.
*/
int QTabWidget::currentIndex() const
{
Q_D(const QTabWidget);
return d->tabs->currentIndex();
}
void QTabWidget::setCurrentIndex(int index)
{
Q_D(QTabWidget);
d->tabs->setCurrentIndex(index);
}
/*!
Returns the index position of the page occupied by the widget \a
w, or -1 if the widget cannot be found.
*/
int QTabWidget::indexOf(QWidget* w) const
{
Q_D(const QTabWidget);
return d->stack->indexOf(w);
}
/*!
\reimp
*/
void QTabWidget::resizeEvent(QResizeEvent *e)
{
QWidget::resizeEvent(e);
setUpLayout();
}
/*!
Replaces the dialog's QTabBar heading with the tab bar \a tb. Note
that this must be called \e before any tabs have been added, or
the behavior is undefined.
\sa tabBar()
*/
void QTabWidget::setTabBar(QTabBar* tb)
{
Q_D(QTabWidget);
Q_ASSERT(tb);
if (tb->parentWidget() != this) {
tb->setParent(this);
tb->show();
}
delete d->tabs;
d->tabs = tb;
setFocusProxy(d->tabs);
connect(d->tabs, SIGNAL(currentChanged(int)),
this, SLOT(_q_showTab(int)));
connect(d->tabs, SIGNAL(tabMoved(int,int)),
this, SLOT(_q_tabMoved(int,int)));
if (d->tabs->tabsClosable())
connect(d->tabs, SIGNAL(tabCloseRequested(int)),
this, SIGNAL(tabCloseRequested(int)));
tb->setExpanding(!documentMode());
setUpLayout();
}
/*!
Returns the current QTabBar.
\sa setTabBar()
*/
QTabBar* QTabWidget::tabBar() const
{
Q_D(const QTabWidget);
return d->tabs;
}
/*!
Ensures that the selected tab's page is visible and appropriately
sized.
*/
void QTabWidgetPrivate::_q_showTab(int index)
{
Q_Q(QTabWidget);
if (index < stack->count() && index >= 0)
stack->setCurrentIndex(index);
emit q->currentChanged(index);
#ifdef QT3_SUPPORT
emit q->selected(q->tabText(index));
emit q->currentChanged(stack->widget(index));
#endif
}
void QTabWidgetPrivate::_q_removeTab(int index)
{
Q_Q(QTabWidget);
tabs->removeTab(index);
q->setUpLayout();
q->tabRemoved(index);
}
void QTabWidgetPrivate::_q_tabMoved(int from, int to)
{
stack->blockSignals(true);
QWidget *w = stack->widget(from);
stack->removeWidget(w);
stack->insertWidget(to, w);
stack->blockSignals(false);
}
/*
Set up the layout.
Get subrect from the current style, and set the geometry for the
stack widget, tab bar and corner widgets.
*/
void QTabWidget::setUpLayout(bool onlyCheck)
{
Q_D(QTabWidget);
if (onlyCheck && !d->dirty)
return; // nothing to do
QStyleOptionTabWidgetFrameV2 option;
initStyleOption(&option);
// this must be done immediately, because QWidgetItem relies on it (even if !isVisible())
d->setLayoutItemMargins(QStyle::SE_TabWidgetLayoutItem, &option);
if (!isVisible()) {
d->dirty = true;
return; // we'll do it later
}
QRect tabRect = style()->subElementRect(QStyle::SE_TabWidgetTabBar, &option, this);
d->panelRect = style()->subElementRect(QStyle::SE_TabWidgetTabPane, &option, this);
QRect contentsRect = style()->subElementRect(QStyle::SE_TabWidgetTabContents, &option, this);
QRect leftCornerRect = style()->subElementRect(QStyle::SE_TabWidgetLeftCorner, &option, this);
QRect rightCornerRect = style()->subElementRect(QStyle::SE_TabWidgetRightCorner, &option, this);
d->tabs->setGeometry(tabRect);
d->stack->setGeometry(contentsRect);
if (d->leftCornerWidget)
d->leftCornerWidget->setGeometry(leftCornerRect);
if (d->rightCornerWidget)
d->rightCornerWidget->setGeometry(rightCornerRect);
if (!onlyCheck)
update();
updateGeometry();
}
/*!
\internal
*/
static inline QSize basicSize(
bool horizontal, const QSize &lc, const QSize &rc, const QSize &s, const QSize &t)
{
return horizontal
? QSize(qMax(s.width(), t.width() + rc.width() + lc.width()),
s.height() + (qMax(rc.height(), qMax(lc.height(), t.height()))))
: QSize(s.width() + (qMax(rc.width(), qMax(lc.width(), t.width()))),
qMax(s.height(), t.height() + rc.height() + lc.height()));
}
/*!
\reimp
*/
QSize QTabWidget::sizeHint() const
{
Q_D(const QTabWidget);
QSize lc(0, 0), rc(0, 0);
QStyleOption opt(0);
opt.init(this);
opt.state = QStyle::State_None;
if (d->leftCornerWidget)
lc = d->leftCornerWidget->sizeHint();
if(d->rightCornerWidget)
rc = d->rightCornerWidget->sizeHint();
if (!d->dirty) {
QTabWidget *that = (QTabWidget*)this;
that->setUpLayout(true);
}
QSize s(d->stack->sizeHint());
QSize t(d->tabs->sizeHint());
if(usesScrollButtons())
t = t.boundedTo(QSize(200,200));
else
t = t.boundedTo(QApplication::desktop()->size());
QSize sz = basicSize(d->pos == North || d->pos == South, lc, rc, s, t);
return style()->sizeFromContents(QStyle::CT_TabWidget, &opt, sz, this)
.expandedTo(QApplication::globalStrut());
}
/*!
\reimp
Returns a suitable minimum size for the tab widget.
*/
QSize QTabWidget::minimumSizeHint() const
{
Q_D(const QTabWidget);
QSize lc(0, 0), rc(0, 0);
if(d->leftCornerWidget)
lc = d->leftCornerWidget->minimumSizeHint();
if(d->rightCornerWidget)
rc = d->rightCornerWidget->minimumSizeHint();
if (!d->dirty) {
QTabWidget *that = (QTabWidget*)this;
that->setUpLayout(true);
}
QSize s(d->stack->minimumSizeHint());
QSize t(d->tabs->minimumSizeHint());
QSize sz = basicSize(d->pos == North || d->pos == South, lc, rc, s, t);
QStyleOption opt(0);
opt.rect = rect();
opt.palette = palette();
opt.state = QStyle::State_None;
return style()->sizeFromContents(QStyle::CT_TabWidget, &opt, sz, this)
.expandedTo(QApplication::globalStrut());
}
/*!
\reimp
*/
void QTabWidget::showEvent(QShowEvent *)
{
setUpLayout();
}
void QTabWidgetPrivate::updateTabBarPosition()
{
Q_Q(QTabWidget);
switch (pos) {
case QTabWidget::North:
tabs->setShape(shape == QTabWidget::Rounded ? QTabBar::RoundedNorth
: QTabBar::TriangularNorth);
break;
case QTabWidget::South:
tabs->setShape(shape == QTabWidget::Rounded ? QTabBar::RoundedSouth
: QTabBar::TriangularSouth);
break;
case QTabWidget::West:
tabs->setShape(shape == QTabWidget::Rounded ? QTabBar::RoundedWest
: QTabBar::TriangularWest);
break;
case QTabWidget::East:
tabs->setShape(shape == QTabWidget::Rounded ? QTabBar::RoundedEast
: QTabBar::TriangularEast);
break;
}
q->setUpLayout();
}
/*!
\property QTabWidget::tabPosition
\brief the position of the tabs in this tab widget
Possible values for this property are described by the TabPosition
enum.
By default, this property is set to \l North.
\sa TabPosition
*/
QTabWidget::TabPosition QTabWidget::tabPosition() const
{
Q_D(const QTabWidget);
return d->pos;
}
void QTabWidget::setTabPosition(TabPosition pos)
{
Q_D(QTabWidget);
if (d->pos == pos)
return;
d->pos = pos;
d->updateTabBarPosition();
}
/*!
\property QTabWidget::tabsClosable
\brief whether close buttons are automatically added to each tab.
\since 4.5
\sa QTabBar::tabsClosable()
*/
bool QTabWidget::tabsClosable() const
{
return tabBar()->tabsClosable();
}
void QTabWidget::setTabsClosable(bool closeable)
{
if (tabsClosable() == closeable)
return;
tabBar()->setTabsClosable(closeable);
if (closeable)
connect(tabBar(), SIGNAL(tabCloseRequested(int)),
this, SIGNAL(tabCloseRequested(int)));
else
disconnect(tabBar(), SIGNAL(tabCloseRequested(int)),
this, SIGNAL(tabCloseRequested(int)));
setUpLayout();
}
/*!
\property QTabWidget::movable
\brief This property holds whether the user can move the tabs
within the tabbar area.
\since 4.5
By default, this property is false;
*/
bool QTabWidget::isMovable() const
{
return tabBar()->isMovable();
}
void QTabWidget::setMovable(bool movable)
{
tabBar()->setMovable(movable);
}
/*!
\property QTabWidget::tabShape
\brief the shape of the tabs in this tab widget
Possible values for this property are QTabWidget::Rounded
(default) or QTabWidget::Triangular.
\sa TabShape
*/
QTabWidget::TabShape QTabWidget::tabShape() const
{
Q_D(const QTabWidget);
return d->shape;
}
void QTabWidget::setTabShape(TabShape s)
{
Q_D(QTabWidget);
if (d->shape == s)
return;
d->shape = s;
d->updateTabBarPosition();
}
/*!
\reimp
*/
bool QTabWidget::event(QEvent *ev)
{
if (ev->type() == QEvent::LayoutRequest)
setUpLayout();
return QWidget::event(ev);
}
/*!
\reimp
*/
void QTabWidget::changeEvent(QEvent *ev)
{
if (ev->type() == QEvent::StyleChange
#ifdef Q_WS_MAC
|| ev->type() == QEvent::MacSizeChange
#endif
)
setUpLayout();
QWidget::changeEvent(ev);
}
/*!
\reimp
*/
void QTabWidget::keyPressEvent(QKeyEvent *e)
{
Q_D(QTabWidget);
if (((e->key() == Qt::Key_Tab || e->key() == Qt::Key_Backtab) &&
count() > 1 && e->modifiers() & Qt::ControlModifier)
#ifdef QT_KEYPAD_NAVIGATION
|| QApplication::keypadNavigationEnabled() && (e->key() == Qt::Key_Left || e->key() == Qt::Key_Right) && count() > 1
#endif
) {
int pageCount = d->tabs->count();
int page = currentIndex();
int dx = (e->key() == Qt::Key_Backtab || e->modifiers() & Qt::ShiftModifier) ? -1 : 1;
#ifdef QT_KEYPAD_NAVIGATION
if (QApplication::keypadNavigationEnabled() && (e->key() == Qt::Key_Left || e->key() == Qt::Key_Right))
dx = e->key() == (isRightToLeft() ? Qt::Key_Right : Qt::Key_Left) ? -1 : 1;
#endif
for (int pass = 0; pass < pageCount; ++pass) {
page+=dx;
if (page < 0
#ifdef QT_KEYPAD_NAVIGATION
&& !e->isAutoRepeat()
#endif
) {
page = count() - 1;
} else if (page >= pageCount
#ifdef QT_KEYPAD_NAVIGATION
&& !e->isAutoRepeat()
#endif
) {
page = 0;
}
if (d->tabs->isTabEnabled(page)) {
setCurrentIndex(page);
break;
}
}
if (!QApplication::focusWidget())
d->tabs->setFocus();
} else {
e->ignore();
}
}
/*!
Returns the tab page at index position \a index or 0 if the \a
index is out of range.
*/
QWidget *QTabWidget::widget(int index) const
{
Q_D(const QTabWidget);
return d->stack->widget(index);
}
/*!
\property QTabWidget::count
\brief the number of tabs in the tab bar
By default, this property contains a value of 0.
*/
int QTabWidget::count() const
{
Q_D(const QTabWidget);
return d->tabs->count();
}
#ifndef QT_NO_TOOLTIP
/*!
Sets the tab tool tip for the page at position \a index to \a tip.
\sa tabToolTip()
*/
void QTabWidget::setTabToolTip(int index, const QString & tip)
{
Q_D(QTabWidget);
d->tabs->setTabToolTip(index, tip);
}
/*!
Returns the tab tool tip for the page at position \a index or
an empty string if no tool tip has been set.
\sa setTabToolTip()
*/
QString QTabWidget::tabToolTip(int index) const
{
Q_D(const QTabWidget);
return d->tabs->tabToolTip(index);
}
#endif // QT_NO_TOOLTIP
#ifndef QT_NO_WHATSTHIS
/*!
\since 4.1
Sets the What's This help text for the page at position \a index
to \a text.
*/
void QTabWidget::setTabWhatsThis(int index, const QString &text)
{
Q_D(QTabWidget);
d->tabs->setTabWhatsThis(index, text);
}
/*!
\since 4.1
Returns the What's This help text for the page at position \a index,
or an empty string if no help text has been set.
*/
QString QTabWidget::tabWhatsThis(int index) const
{
Q_D(const QTabWidget);
return d->tabs->tabWhatsThis(index);
}
#endif // QT_NO_WHATSTHIS
/*!
This virtual handler is called after a new tab was added or
inserted at position \a index.
\sa tabRemoved()
*/
void QTabWidget::tabInserted(int index)
{
Q_UNUSED(index)
}
/*!
This virtual handler is called after a tab was removed from
position \a index.
\sa tabInserted()
*/
void QTabWidget::tabRemoved(int index)
{
Q_UNUSED(index)
}
/*!
\fn void QTabWidget::paintEvent(QPaintEvent *event)
Paints the tab widget's tab bar in response to the paint \a event.
*/
void QTabWidget::paintEvent(QPaintEvent *)
{
Q_D(QTabWidget);
if (documentMode()) {
QStylePainter p(this, tabBar());
if (QWidget *w = cornerWidget(Qt::TopLeftCorner)) {
QStyleOptionTabBarBaseV2 opt;
QTabBarPrivate::initStyleBaseOption(&opt, tabBar(), w->size());
opt.rect.moveLeft(w->x() + opt.rect.x());
opt.rect.moveTop(w->y() + opt.rect.y());
p.drawPrimitive(QStyle::PE_FrameTabBarBase, opt);
}
if (QWidget *w = cornerWidget(Qt::TopRightCorner)) {
QStyleOptionTabBarBaseV2 opt;
QTabBarPrivate::initStyleBaseOption(&opt, tabBar(), w->size());
opt.rect.moveLeft(w->x() + opt.rect.x());
opt.rect.moveTop(w->y() + opt.rect.y());
p.drawPrimitive(QStyle::PE_FrameTabBarBase, opt);
}
return;
}
QStylePainter p(this);
QStyleOptionTabWidgetFrameV2 opt;
initStyleOption(&opt);
opt.rect = d->panelRect;
p.drawPrimitive(QStyle::PE_FrameTabWidget, opt);
}
/*!
\property QTabWidget::iconSize
\brief The size for icons in the tab bar
\since 4.2
The default value is style-dependent. This is the maximum size
that the icons will have. Icons are not scaled up if they are of
smaller size.
\sa QTabBar::iconSize
*/
QSize QTabWidget::iconSize() const
{
return d_func()->tabs->iconSize();
}
void QTabWidget::setIconSize(const QSize &size)
{
d_func()->tabs->setIconSize(size);
}
/*!
\property QTabWidget::elideMode
\brief how to elide text in the tab bar
\since 4.2
This property controls how items are elided when there is not
enough space to show them for a given tab bar size.
By default the value is style dependant.
\sa QTabBar::elideMode usesScrollButtons QStyle::SH_TabBar_ElideMode
*/
Qt::TextElideMode QTabWidget::elideMode() const
{
return d_func()->tabs->elideMode();
}
void QTabWidget::setElideMode(Qt::TextElideMode mode)
{
d_func()->tabs->setElideMode(mode);
}
/*!
\property QTabWidget::usesScrollButtons
\brief Whether or not a tab bar should use buttons to scroll tabs when it
has many tabs.
\since 4.2
When there are too many tabs in a tab bar for its size, the tab bar can either choose
to expand its size or to add buttons that allow you to scroll through the tabs.
By default the value is style dependant.
\sa elideMode QTabBar::usesScrollButtons QStyle::SH_TabBar_PreferNoArrows
*/
bool QTabWidget::usesScrollButtons() const
{
return d_func()->tabs->usesScrollButtons();
}
void QTabWidget::setUsesScrollButtons(bool useButtons)
{
d_func()->tabs->setUsesScrollButtons(useButtons);
}
/*!
\property QTabWidget::documentMode
\brief Whether or not the tab widget is rendered in a mode suitable for document
pages. This is the same as document mode on Mac OS X.
\since 4.5
When this property is set the tab widget frame is not rendered. This mode is useful
for showing document-type pages where the page covers most of the tab widget
area.
\sa elideMode, QTabBar::documentMode, QTabBar::usesScrollButtons, QStyle::SH_TabBar_PreferNoArrows
*/
bool QTabWidget::documentMode() const
{
Q_D(const QTabWidget);
return d->tabs->documentMode();
}
void QTabWidget::setDocumentMode(bool enabled)
{
Q_D(QTabWidget);
d->tabs->setDocumentMode(enabled);
d->tabs->setExpanding(!enabled);
d->tabs->setDrawBase(enabled);
setUpLayout();
}
/*!
Removes all the pages, but does not delete them. Calling this function
is equivalent to calling removeTab() until the tab widget is empty.
*/
void QTabWidget::clear()
{
// ### optimize by introduce QStackedLayout::clear()
while (count())
removeTab(0);
}
/*!
\fn void QTabWidget::insertTab(QWidget *widget, const QString &label, int index)
Use insertTab(index, widget, label) instead.
*/
/*!
\fn void QTabWidget::insertTab(QWidget *widget, const QIcon& icon, const QString &label, int index)
Use insertTab(index, widget, icon, label) instead.
*/
/*!
\fn void QTabWidget::changeTab(QWidget *widget, const QString
&label)
Use setTabText() instead.
*/
/*!
\fn void QTabWidget::changeTab(QWidget *widget, const QIcon& icon, const QString &label)
Use setTabText() and setTabIcon() instead.
*/
/*!
\fn bool QTabWidget::isTabEnabled( QWidget *widget) const
Use isTabEnabled(tabWidget->indexOf(widget)) instead.
*/
/*!
\fn void QTabWidget::setTabEnabled(QWidget *widget, bool b)
Use setTabEnabled(tabWidget->indexOf(widget), b) instead.
*/
/*!
\fn QString QTabWidget::tabLabel(QWidget *widget) const
Use tabText(tabWidget->indexOf(widget)) instead.
*/
/*!
\fn void QTabWidget::setTabLabel(QWidget *widget, const QString
&label)
Use setTabText(tabWidget->indexOf(widget), label) instead.
*/
/*!
\fn QIcon QTabWidget::tabIconSet(QWidget * widget) const
Use tabIcon(tabWidget->indexOf(widget)) instead.
*/
/*!
\fn void QTabWidget::setTabIconSet(QWidget * widget, const QIcon & icon)
Use setTabIcon(tabWidget->indexOf(widget), icon) instead.
*/
/*!
\fn void QTabWidget::removeTabToolTip(QWidget * widget)
Use setTabToolTip(tabWidget->indexOf(widget), QString()) instead.
*/
/*!
\fn void QTabWidget::setTabToolTip(QWidget * widget, const QString & tip)
Use setTabToolTip(tabWidget->indexOf(widget), tip) instead.
*/
/*!
\fn QString QTabWidget::tabToolTip(QWidget * widget) const
Use tabToolTip(tabWidget->indexOf(widget)) instead.
*/
/*!
\fn QWidget * QTabWidget::currentPage() const
Use currentWidget() instead.
*/
/*!
\fn QWidget *QTabWidget::page(int index) const
Use widget() instead.
*/
/*!
\fn QString QTabWidget::label(int index) const
Use tabText() instead.
*/
/*!
\fn int QTabWidget::currentPageIndex() const
Use currentIndex() instead.
*/
/*!
\fn int QTabWidget::margin() const
This function is kept only to make old code compile.
This functionality is no longer supported by QTabWidget.
\sa contentsRect(), setContentsMargins()
*/
/*!
\fn void QTabWidget::setMargin(int margin)
This function is kept only to make old code compile.
This functionality is no longer supported by QTabWidget.
\sa contentsRect(), setContentsMargins()
*/
/*!
\fn void QTabWidget::setCurrentPage(int index)
Use setCurrentIndex() instead.
*/
/*!
\fn void QTabWidget::showPage(QWidget *widget)
Use setCurrentIndex(indexOf(widget)) instead.
*/
/*!
\fn void QTabWidget::removePage(QWidget *widget)
Use removeTab(indexOf(widget)) instead.
*/
/*!
\fn void QTabWidget::currentChanged(QWidget *widget)
Use currentChanged(int) instead.
*/
QT_END_NAMESPACE
#include "moc_qtabwidget.cpp"
#endif //QT_NO_TABWIDGET