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katie/src/gui/widgets/qmenubar.cpp

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initial import Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
2015-12-10 05:06:13 +02:00
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <qmenubar.h>
#include <qstyle.h>
#include <qlayout.h>
#include <qapplication.h>
#include <qdesktopwidget.h>
#ifndef QT_NO_ACCESSIBILITY
# include <qaccessible.h>
#endif
#include <qpainter.h>
#include <qstylepainter.h>
#include <qevent.h>
#include <qmainwindow.h>
#include <qtoolbar.h>
#include <qtoolbutton.h>
#include <qwhatsthis.h>
#ifdef Q_WS_X11
#include <qpluginloader.h>
#endif
#ifndef QT_NO_MENUBAR
#include "qmenu_p.h"
#include "qmenubar_p.h"
#include "qdebug.h"
#ifdef Q_WS_X11
#include "qmenubar_x11_p.h"
#endif
#ifdef Q_WS_WINCE
extern bool qt_wince_is_mobile(); //defined in qguifunctions_wce.cpp
#endif
QT_BEGIN_NAMESPACE
class QMenuBarExtension : public QToolButton
{
public:
explicit QMenuBarExtension(QWidget *parent);
QSize sizeHint() const;
void paintEvent(QPaintEvent *);
};
QMenuBarExtension::QMenuBarExtension(QWidget *parent)
: QToolButton(parent)
{
setObjectName(QLatin1String("qt_menubar_ext_button"));
setAutoRaise(true);
#ifndef QT_NO_MENU
setPopupMode(QToolButton::InstantPopup);
#endif
setIcon(style()->standardIcon(QStyle::SP_ToolBarHorizontalExtensionButton, 0, parentWidget()));
}
void QMenuBarExtension::paintEvent(QPaintEvent *)
{
QStylePainter p(this);
QStyleOptionToolButton opt;
initStyleOption(&opt);
// We do not need to draw both extension arrows
opt.features &= ~QStyleOptionToolButton::HasMenu;
p.drawComplexControl(QStyle::CC_ToolButton, opt);
}
QSize QMenuBarExtension::sizeHint() const
{
int ext = style()->pixelMetric(QStyle::PM_ToolBarExtensionExtent, 0, parentWidget());
return QSize(ext, ext);
}
/*!
\internal
*/
QAction *QMenuBarPrivate::actionAt(QPoint p) const
{
for(int i = 0; i < actions.size(); ++i) {
if(actionRect(actions.at(i)).contains(p))
return actions.at(i);
}
return 0;
}
QRect QMenuBarPrivate::menuRect(bool extVisible) const
{
Q_Q(const QMenuBar);
int hmargin = q->style()->pixelMetric(QStyle::PM_MenuBarPanelWidth, 0, q);
QRect result = q->rect();
result.adjust(hmargin, 0, -hmargin, 0);
if (extVisible) {
if (q->isRightToLeft())
result.setLeft(result.left() + extension->sizeHint().width());
else
result.setWidth(result.width() - extension->sizeHint().width());
}
if (leftWidget && leftWidget->isVisible()) {
QSize sz = leftWidget->sizeHint();
if (q->isRightToLeft())
result.setRight(result.right() - sz.width());
else
result.setLeft(result.left() + sz.width());
}
if (rightWidget && rightWidget->isVisible()) {
QSize sz = rightWidget->sizeHint();
if (q->isRightToLeft())
result.setLeft(result.left() + sz.width());
else
result.setRight(result.right() - sz.width());
}
return result;
}
bool QMenuBarPrivate::isVisible(QAction *action)
{
return !hiddenActions.contains(action);
}
void QMenuBarPrivate::updateGeometries()
{
Q_Q(QMenuBar);
if(!itemsDirty)
return;
int q_width = q->width()-(q->style()->pixelMetric(QStyle::PM_MenuBarPanelWidth, 0, q)*2);
int q_start = -1;
if(
#ifdef Q_WS_X11
platformMenuBar->allowCornerWidgets() &&
#endif
(leftWidget || rightWidget)) {
int vmargin = q->style()->pixelMetric(QStyle::PM_MenuBarVMargin, 0, q)
+ q->style()->pixelMetric(QStyle::PM_MenuBarPanelWidth, 0, q);
int hmargin = q->style()->pixelMetric(QStyle::PM_MenuBarHMargin, 0, q)
+ q->style()->pixelMetric(QStyle::PM_MenuBarPanelWidth, 0, q);
if (leftWidget && leftWidget->isVisible()) {
QSize sz = leftWidget->sizeHint();
q_width -= sz.width();
q_start = sz.width();
QPoint pos(hmargin, (q->height() - leftWidget->height()) / 2);
QRect vRect = QStyle::visualRect(q->layoutDirection(), q->rect(), QRect(pos, sz));
leftWidget->setGeometry(vRect);
}
if (rightWidget && rightWidget->isVisible()) {
QSize sz = rightWidget->sizeHint();
q_width -= sz.width();
QPoint pos(q->width() - sz.width() - hmargin, vmargin);
QRect vRect = QStyle::visualRect(q->layoutDirection(), q->rect(), QRect(pos, sz));
rightWidget->setGeometry(vRect);
}
}
#ifdef Q_WS_MAC
if(q->isNativeMenuBar()) {//nothing to see here folks, move along..
itemsDirty = false;
return;
}
#endif
calcActionRects(q_width, q_start);
currentAction = 0;
#ifndef QT_NO_SHORTCUT
if(
#ifdef Q_WS_X11
!platformMenuBar->shortcutsHandledByNativeMenuBar() &&
#endif
itemsDirty) {
for(int j = 0; j < shortcutIndexMap.size(); ++j)
q->releaseShortcut(shortcutIndexMap.value(j));
shortcutIndexMap.resize(0); // faster than clear
for(int i = 0; i < actions.count(); i++)
shortcutIndexMap.append(q->grabShortcut(QKeySequence::mnemonic(actions.at(i)->text())));
}
#endif
#ifdef Q_WS_X11
if(q->isNativeMenuBar()) {//nothing to see here folks, move along..
itemsDirty = false;
return;
}
#endif
itemsDirty = false;
hiddenActions.clear();
//this is the menu rectangle without any extension
QRect menuRect = this->menuRect(false);
//we try to see if the actions will fit there
bool hasHiddenActions = false;
for (int i = 0; i < actions.count(); ++i) {
const QRect &rect = actionRects.at(i);
if (rect.isValid() && !menuRect.contains(rect)) {
hasHiddenActions = true;
break;
}
}
//...and if not, determine the ones that fit on the menu with the extension visible
if (hasHiddenActions) {
menuRect = this->menuRect(true);
for (int i = 0; i < actions.count(); ++i) {
const QRect &rect = actionRects.at(i);
if (rect.isValid() && !menuRect.contains(rect)) {
hiddenActions.append(actions.at(i));
}
}
}
if (hiddenActions.count() > 0) {
QMenu *pop = extension->menu();
if (!pop) {
pop = new QMenu(q);
extension->setMenu(pop);
}
pop->clear();
pop->addActions(hiddenActions);
int vmargin = q->style()->pixelMetric(QStyle::PM_MenuBarVMargin, 0, q);
int x = q->isRightToLeft()
? menuRect.left() - extension->sizeHint().width() + 1
: menuRect.right();
extension->setGeometry(x, vmargin, extension->sizeHint().width(), menuRect.height() - vmargin*2);
extension->show();
} else {
extension->hide();
}
q->updateGeometry();
}
QRect QMenuBarPrivate::actionRect(QAction *act) const
{
const int index = actions.indexOf(act);
//makes sure the geometries are up-to-date
const_cast<QMenuBarPrivate*>(this)->updateGeometries();
if (index < 0 || index >= actionRects.count())
return QRect(); // that can happen in case of native menubar
return actionRects.at(index);
}
void QMenuBarPrivate::focusFirstAction()
{
if(!currentAction) {
updateGeometries();
int index = 0;
while (index < actions.count() && actionRects.at(index).isNull()) ++index;
if (index < actions.count())
setCurrentAction(actions.at(index));
}
}
void QMenuBarPrivate::setKeyboardMode(bool b)
{
Q_Q(QMenuBar);
if (b && !q->style()->styleHint(QStyle::SH_MenuBar_AltKeyNavigation, 0, q)) {
setCurrentAction(0);
return;
}
keyboardState = b;
if(b) {
QWidget *fw = QApplication::focusWidget();
if (fw != q)
keyboardFocusWidget = fw;
focusFirstAction();
q->setFocus(Qt::MenuBarFocusReason);
} else {
if(!popupState)
setCurrentAction(0);
if(keyboardFocusWidget) {
if (QApplication::focusWidget() == q)
keyboardFocusWidget->setFocus(Qt::MenuBarFocusReason);
keyboardFocusWidget = 0;
}
}
q->update();
}
void QMenuBarPrivate::popupAction(QAction *action, bool activateFirst)
{
Q_Q(QMenuBar);
if(!action || !action->menu() || closePopupMode)
return;
popupState = true;
if (action->isEnabled() && action->menu()->isEnabled()) {
closePopupMode = 0;
activeMenu = action->menu();
activeMenu->d_func()->causedPopup.widget = q;
activeMenu->d_func()->causedPopup.action = action;
QRect adjustedActionRect = actionRect(action);
QPoint pos(q->mapToGlobal(QPoint(adjustedActionRect.left(), adjustedActionRect.bottom() + 1)));
QSize popup_size = activeMenu->sizeHint();
//we put the popup menu on the screen containing the bottom-center of the action rect
QRect screenRect = QApplication::desktop()->screenGeometry(pos + QPoint(adjustedActionRect.width() / 2, 0));
pos = QPoint(qMax(pos.x(), screenRect.x()), qMax(pos.y(), screenRect.y()));
const bool fitUp = (q->mapToGlobal(adjustedActionRect.topLeft()).y() >= popup_size.height());
const bool fitDown = (pos.y() + popup_size.height() <= screenRect.bottom());
const bool rtl = q->isRightToLeft();
const int actionWidth = adjustedActionRect.width();
if (!fitUp && !fitDown) { //we should shift the menu
bool shouldShiftToRight = !rtl;
if (rtl && popup_size.width() > pos.x())
shouldShiftToRight = true;
else if (actionWidth + popup_size.width() + pos.x() > screenRect.right())
shouldShiftToRight = false;
if (shouldShiftToRight) {
pos.rx() += actionWidth + (rtl ? popup_size.width() : 0);
} else {
//shift to left
if (!rtl)
pos.rx() -= popup_size.width();
}
} else if (rtl) {
pos.rx() += actionWidth;
}
if(!defaultPopDown || (fitUp && !fitDown))
pos.setY(qMax(screenRect.y(), q->mapToGlobal(QPoint(0, adjustedActionRect.top()-popup_size.height())).y()));
activeMenu->popup(pos);
if(activateFirst)
activeMenu->d_func()->setFirstActionActive();
}
q->update(actionRect(action));
}
void QMenuBarPrivate::setCurrentAction(QAction *action, bool popup, bool activateFirst)
{
if(currentAction == action && popup == popupState)
return;
autoReleaseTimer.stop();
doChildEffects = (popup && !activeMenu);
Q_Q(QMenuBar);
QWidget *fw = 0;
if(QMenu *menu = activeMenu) {
activeMenu = 0;
if (popup) {
fw = q->window()->focusWidget();
q->setFocus(Qt::NoFocusReason);
}
menu->hide();
}
if(currentAction)
q->update(actionRect(currentAction));
popupState = popup;
#ifndef QT_NO_STATUSTIP
QAction *previousAction = currentAction;
#endif
currentAction = action;
if (action) {
activateAction(action, QAction::Hover);
if(popup)
popupAction(action, activateFirst);
q->update(actionRect(action));
#ifndef QT_NO_STATUSTIP
} else if (previousAction) {
QString empty;
QStatusTipEvent tip(empty);
QApplication::sendEvent(q, &tip);
#endif
}
if (fw)
fw->setFocus(Qt::NoFocusReason);
}
void QMenuBarPrivate::calcActionRects(int max_width, int start) const
{
Q_Q(const QMenuBar);
if(!itemsDirty)
return;
//let's reinitialize the buffer
actionRects.resize(actions.count());
actionRects.fill(QRect());
const QStyle *style = q->style();
const int itemSpacing = style->pixelMetric(QStyle::PM_MenuBarItemSpacing, 0, q);
int max_item_height = 0, separator = -1, separator_start = 0, separator_len = 0;
//calculate size
const QFontMetrics fm = q->fontMetrics();
const int hmargin = style->pixelMetric(QStyle::PM_MenuBarHMargin, 0, q),
vmargin = style->pixelMetric(QStyle::PM_MenuBarVMargin, 0, q),
icone = style->pixelMetric(QStyle::PM_SmallIconSize, 0, q);
for(int i = 0; i < actions.count(); i++) {
QAction *action = actions.at(i);
if(!action->isVisible())
continue;
QSize sz;
//calc what I think the size is..
if(action->isSeparator()) {
if (style->styleHint(QStyle::SH_DrawMenuBarSeparator, 0, q))
separator = i;
continue; //we don't really position these!
} else {
const QString s = action->text();
QIcon is = action->icon();
// If an icon is set, only the icon is visible
if (!is.isNull())
sz = sz.expandedTo(QSize(icone, icone));
else if (!s.isEmpty())
sz = fm.size(Qt::TextShowMnemonic, s);
}
//let the style modify the above size..
QStyleOptionMenuItem opt;
q->initStyleOption(&opt, action);
sz = q->style()->sizeFromContents(QStyle::CT_MenuBarItem, &opt, sz, q);
if(!sz.isEmpty()) {
{ //update the separator state
int iWidth = sz.width() + itemSpacing;
if(separator == -1)
separator_start += iWidth;
else
separator_len += iWidth;
}
//maximum height
max_item_height = qMax(max_item_height, sz.height());
//append
actionRects[i] = QRect(0, 0, sz.width(), sz.height());
}
}
//calculate position
const int fw = q->style()->pixelMetric(QStyle::PM_MenuBarPanelWidth, 0, q);
int x = fw + ((start == -1) ? hmargin : start) + itemSpacing;
int y = fw + vmargin;
for(int i = 0; i < actions.count(); i++) {
QRect &rect = actionRects[i];
if (rect.isNull())
continue;
//resize
rect.setHeight(max_item_height);
//move
if(separator != -1 && i >= separator) { //after the separator
int left = (max_width - separator_len - hmargin - itemSpacing) + (x - separator_start - hmargin);
if(left < separator_start) { //wrap
separator_start = x = hmargin;
y += max_item_height;
}
rect.moveLeft(left);
} else {
rect.moveLeft(x);
}
rect.moveTop(y);
//keep moving along..
x += rect.width() + itemSpacing;
//make sure we follow the layout direction
rect = QStyle::visualRect(q->layoutDirection(), q->rect(), rect);
}
}
void QMenuBarPrivate::activateAction(QAction *action, QAction::ActionEvent action_e)
{
Q_Q(QMenuBar);
if (!action || !action->isEnabled())
return;
action->activate(action_e);
if (action_e == QAction::Hover)
action->showStatusText(q);
// if(action_e == QAction::Trigger)
// emit q->activated(action);
// else if(action_e == QAction::Hover)
// emit q->highlighted(action);
}
void QMenuBarPrivate::_q_actionTriggered()
{
Q_Q(QMenuBar);
if (QAction *action = qobject_cast<QAction *>(q->sender())) {
emit q->triggered(action);
}
}
void QMenuBarPrivate::_q_actionHovered()
{
Q_Q(QMenuBar);
if (QAction *action = qobject_cast<QAction *>(q->sender())) {
emit q->hovered(action);
#ifndef QT_NO_ACCESSIBILITY
if (QAccessible::isActive()) {
int actionIndex = actions.indexOf(action);
++actionIndex;
QAccessible::updateAccessibility(q, actionIndex, QAccessible::Focus);
QAccessible::updateAccessibility(q, actionIndex, QAccessible::Selection);
}
#endif //QT_NO_ACCESSIBILITY
}
}
/*!
Initialize \a option with the values from the menu bar and information from \a action. This method
is useful for subclasses when they need a QStyleOptionMenuItem, but don't want
to fill in all the information themselves.
\sa QStyleOption::initFrom() QMenu::initStyleOption()
*/
void QMenuBar::initStyleOption(QStyleOptionMenuItem *option, const QAction *action) const
{
if (!option || !action)
return;
Q_D(const QMenuBar);
option->palette = palette();
option->state = QStyle::State_None;
if (isEnabled() && action->isEnabled())
option->state |= QStyle::State_Enabled;
else
option->palette.setCurrentColorGroup(QPalette::Disabled);
option->fontMetrics = fontMetrics();
if (d->currentAction && d->currentAction == action) {
option->state |= QStyle::State_Selected;
if (d->popupState && !d->closePopupMode)
option->state |= QStyle::State_Sunken;
}
if (hasFocus() || d->currentAction)
option->state |= QStyle::State_HasFocus;
option->menuRect = rect();
option->menuItemType = QStyleOptionMenuItem::Normal;
option->checkType = QStyleOptionMenuItem::NotCheckable;
option->text = action->text();
option->icon = action->icon();
}
/*!
\class QMenuBar
\brief The QMenuBar class provides a horizontal menu bar.
\ingroup mainwindow-classes
A menu bar consists of a list of pull-down menu items. You add
menu items with addMenu(). For example, asuming that \c menubar
is a pointer to a QMenuBar and \c fileMenu is a pointer to a
QMenu, the following statement inserts the menu into the menu bar:
\snippet doc/src/snippets/code/src_gui_widgets_qmenubar.cpp 0
The ampersand in the menu item's text sets Alt+F as a shortcut for
this menu. (You can use "\&\&" to get a real ampersand in the menu
bar.)
There is no need to lay out a menu bar. It automatically sets its
own geometry to the top of the parent widget and changes it
appropriately whenever the parent is resized.
\section1 Usage
In most main window style applications you would use the
\l{QMainWindow::}{menuBar()} function provided in QMainWindow,
adding \l{QMenu}s to the menu bar and adding \l{QAction}s to the
pop-up menus.
Example (from the \l{mainwindows/menus}{Menus} example):
\snippet examples/mainwindows/menus/mainwindow.cpp 9
Menu items may be removed with removeAction().
Widgets can be added to menus by using instances of the QWidgetAction
class to hold them. These actions can then be inserted into menus
in the usual way; see the QMenu documentation for more details.
\section1 Platform Dependent Look and Feel
Different platforms have different requirements for the appearance
of menu bars and their behavior when the user interacts with them.
For example, Windows systems are often configured so that the
underlined character mnemonics that indicate keyboard shortcuts
for items in the menu bar are only shown when the \gui{Alt} key is
pressed.
\table
\row \o \inlineimage plastique-menubar.png A menu bar shown in the
Plastique widget style.
\o The \l{QPlastiqueStyle}{Plastique widget style}, like most
other styles, handles the \gui{Help} menu in the same way as it
handles any other menu.
\row \o \inlineimage motif-menubar.png A menu bar shown in the
Motif widget style.
\o The \l{QMotifStyle}{Motif widget style} treats \gui{Help} menus
in a special way, placing them at right-hand end of the menu bar.
\endtable
\section1 QMenuBar on Mac OS X
QMenuBar on Mac OS X is a wrapper for using the system-wide menu bar.
If you have multiple menu bars in one dialog the outermost menu bar
(normally inside a widget with widget flag Qt::Window) will
be used for the system-wide menu bar.
Qt for Mac OS X also provides a menu bar merging feature to make
QMenuBar conform more closely to accepted Mac OS X menu bar layout.
The merging functionality is based on string matching the title of
a QMenu entry. These strings are translated (using QObject::tr())
in the "QMenuBar" context. If an entry is moved its slots will still
fire as if it was in the original place. The table below outlines
the strings looked for and where the entry is placed if matched:
\table
\header \i String matches \i Placement \i Notes
\row \i about.*
\i Application Menu | About <application name>
\i The application name is fetched from the \c {Info.plist} file
(see note below). If this entry is not found no About item
will appear in the Application Menu.
\row \i config, options, setup, settings or preferences
\i Application Menu | Preferences
\i If this entry is not found the Settings item will be disabled
\row \i quit or exit
\i Application Menu | Quit <application name>
\i If this entry is not found a default Quit item will be
created to call QApplication::quit()
\endtable
You can override this behavior by using the QAction::menuRole()
property.
If you want all windows in a Mac application to share one menu
bar, you must create a menu bar that does not have a parent.
Create a parent-less menu bar this way:
\snippet doc/src/snippets/code/src_gui_widgets_qmenubar.cpp 1
\bold{Note:} Do \e{not} call QMainWindow::menuBar() to create the
shared menu bar, because that menu bar will have the QMainWindow
as its parent. That menu bar would only be displayed for the
parent QMainWindow.
\bold{Note:} The text used for the application name in the menu
bar is obtained from the value set in the \c{Info.plist} file in
the application's bundle. See \l{Deploying an Application on
Mac OS X} for more information.
\section1 QMenuBar on Windows CE
QMenuBar on Windows CE is a wrapper for using the system-wide menu bar,
similar to the Mac. This feature is activated for Windows Mobile
and integrates QMenuBar with the native soft keys. The left soft
key can be controlled with QMenuBar::setDefaultAction() and the
right soft key can be used to access the menu bar.
The hovered() signal is not supported for the native menu
integration. Also, it is not possible to display an icon in a
native menu on Windows Mobile.
\section1 Examples
The \l{mainwindows/menus}{Menus} example shows how to use QMenuBar
and QMenu. The other \l{Main Window Examples}{main window
application examples} also provide menus using these classes.
\sa QMenu, QShortcut, QAction,
{http://developer.apple.com/documentation/UserExperience/Conceptual/AppleHIGuidelines/XHIGIntro/XHIGIntro.html}{Introduction to Apple Human Interface Guidelines},
{fowler}{GUI Design Handbook: Menu Bar}, {Menus Example}
*/
void QMenuBarPrivate::init()
{
Q_Q(QMenuBar);
q->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Minimum);
q->setAttribute(Qt::WA_CustomWhatsThis);
#ifdef Q_WS_MAC
macCreateMenuBar(q->parentWidget());
if(mac_menubar)
q->hide();
#endif
#ifdef Q_WS_WINCE
if (qt_wince_is_mobile()) {
wceCreateMenuBar(q->parentWidget());
if(wce_menubar)
q->hide();
}
else {
QApplication::setAttribute(Qt::AA_DontUseNativeMenuBar, true);
}
#endif
#ifdef Q_WS_X11
platformMenuBar = qt_guiPlatformMenuBarFactory()->create();
platformMenuBar->init(q);
#endif
q->setBackgroundRole(QPalette::Button);
oldWindow = oldParent = 0;
#ifdef Q_WS_X11
cornerWidgetToolBar = 0;
cornerWidgetContainer = 0;
#endif
handleReparent();
q->setMouseTracking(q->style()->styleHint(QStyle::SH_MenuBar_MouseTracking, 0, q));
extension = new QMenuBarExtension(q);
extension->setFocusPolicy(Qt::NoFocus);
extension->hide();
}
//Gets the next action for keyboard navigation
QAction *QMenuBarPrivate::getNextAction(const int _start, const int increment) const
{
Q_Q(const QMenuBar);
const_cast<QMenuBarPrivate*>(this)->updateGeometries();
bool allowActiveAndDisabled = q->style()->styleHint(QStyle::SH_Menu_AllowActiveAndDisabled, 0, q);
const int start = (_start == -1 && increment == -1) ? actions.count() : _start;
const int end = increment == -1 ? 0 : actions.count() - 1;
for (int i = start; i != end;) {
i += increment;
QAction *current = actions.at(i);
if (!actionRects.at(i).isNull() && (allowActiveAndDisabled || current->isEnabled()))
return current;
}
if (_start != -1) //let's try from the beginning or the end
return getNextAction(-1, increment);
return 0;
}
/*!
Constructs a menu bar with parent \a parent.
*/
QMenuBar::QMenuBar(QWidget *parent) : QWidget(*new QMenuBarPrivate, parent, 0)
{
Q_D(QMenuBar);
d->init();
}
/*!
Destroys the menu bar.
*/
QMenuBar::~QMenuBar()
{
#ifdef Q_WS_MAC
Q_D(QMenuBar);
d->macDestroyMenuBar();
#endif
#ifdef Q_WS_WINCE
Q_D(QMenuBar);
if (qt_wince_is_mobile())
d->wceDestroyMenuBar();
#endif
#ifdef Q_WS_X11
Q_D(QMenuBar);
delete d->cornerWidgetToolBar;
#endif
}
/*!
\overload
This convenience function creates a new action with \a text.
The function adds the newly created action to the menu's
list of actions, and returns it.
\sa QWidget::addAction(), QWidget::actions()
*/
QAction *QMenuBar::addAction(const QString &text)
{
QAction *ret = new QAction(text, this);
addAction(ret);
return ret;
}
/*!
\overload
This convenience function creates a new action with the given \a
text. The action's triggered() signal is connected to the \a
receiver's \a member slot. The function adds the newly created
action to the menu's list of actions and returns it.
\sa QWidget::addAction(), QWidget::actions()
*/
QAction *QMenuBar::addAction(const QString &text, const QObject *receiver, const char* member)
{
QAction *ret = new QAction(text, this);
QObject::connect(ret, SIGNAL(triggered(bool)), receiver, member);
addAction(ret);
return ret;
}
/*!
Appends a new QMenu with \a title to the menu bar. The menu bar
takes ownership of the menu. Returns the new menu.
\sa QWidget::addAction() QMenu::menuAction()
*/
QMenu *QMenuBar::addMenu(const QString &title)
{
QMenu *menu = new QMenu(title, this);
addAction(menu->menuAction());
return menu;
}
/*!
Appends a new QMenu with \a icon and \a title to the menu bar. The menu bar
takes ownership of the menu. Returns the new menu.
\sa QWidget::addAction() QMenu::menuAction()
*/
QMenu *QMenuBar::addMenu(const QIcon &icon, const QString &title)
{
QMenu *menu = new QMenu(title, this);
menu->setIcon(icon);
addAction(menu->menuAction());
return menu;
}
/*!
Appends \a menu to the menu bar. Returns the menu's menuAction().
\note The returned QAction object can be used to hide the corresponding
menu.
\sa QWidget::addAction() QMenu::menuAction()
*/
QAction *QMenuBar::addMenu(QMenu *menu)
{
QAction *action = menu->menuAction();
addAction(action);
return action;
}
/*!
Appends a separator to the menu.
*/
QAction *QMenuBar::addSeparator()
{
QAction *ret = new QAction(this);
ret->setSeparator(true);
addAction(ret);
return ret;
}
/*!
This convenience function creates a new separator action, i.e. an
action with QAction::isSeparator() returning true. The function inserts
the newly created action into this menu bar's list of actions before
action \a before and returns it.
\sa QWidget::insertAction(), addSeparator()
*/
QAction *QMenuBar::insertSeparator(QAction *before)
{
QAction *action = new QAction(this);
action->setSeparator(true);
insertAction(before, action);
return action;
}
/*!
This convenience function inserts \a menu before action \a before
and returns the menus menuAction().
\sa QWidget::insertAction() addMenu()
*/
QAction *QMenuBar::insertMenu(QAction *before, QMenu *menu)
{
QAction *action = menu->menuAction();
insertAction(before, action);
return action;
}
/*!
Returns the QAction that is currently highlighted. A null pointer
will be returned if no action is currently selected.
*/
QAction *QMenuBar::activeAction() const
{
Q_D(const QMenuBar);
return d->currentAction;
}
/*!
\since 4.1
Sets the currently highlighted action to \a act.
*/
void QMenuBar::setActiveAction(QAction *act)
{
Q_D(QMenuBar);
d->setCurrentAction(act, true, false);
}
/*!
Removes all the actions from the menu bar.
\note On Mac OS X, menu items that have been merged to the system
menu bar are not removed by this function. One way to handle this
would be to remove the extra actions yourself. You can set the
\l{QAction::MenuRole}{menu role} on the different menus, so that
you know ahead of time which menu items get merged and which do
not. Then decide what to recreate or remove yourself.
\sa removeAction()
*/
void QMenuBar::clear()
{
QList<QAction*> acts = actions();
for(int i = 0; i < acts.size(); i++)
removeAction(acts[i]);
}
/*!
\property QMenuBar::defaultUp
\brief the popup orientation
The default popup orientation. By default, menus pop "down" the
screen. By setting the property to true, the menu will pop "up".
You might call this for menus that are \e below the document to
which they refer.
If the menu would not fit on the screen, the other direction is
used automatically.
*/
void QMenuBar::setDefaultUp(bool b)
{
Q_D(QMenuBar);
d->defaultPopDown = !b;
}
bool QMenuBar::isDefaultUp() const
{
Q_D(const QMenuBar);
return !d->defaultPopDown;
}
/*!
\reimp
*/
void QMenuBar::resizeEvent(QResizeEvent *)
{
Q_D(QMenuBar);
d->itemsDirty = true;
d->updateGeometries();
}
/*!
\reimp
*/
void QMenuBar::paintEvent(QPaintEvent *e)
{
Q_D(QMenuBar);
QPainter p(this);
QRegion emptyArea(rect());
//draw the items
for (int i = 0; i < d->actions.count(); ++i) {
QAction *action = d->actions.at(i);
QRect adjustedActionRect = d->actionRect(action);
if (adjustedActionRect.isEmpty() || !d->isVisible(action))
continue;
if(!e->rect().intersects(adjustedActionRect))
continue;
emptyArea -= adjustedActionRect;
QStyleOptionMenuItem opt;
initStyleOption(&opt, action);
opt.rect = adjustedActionRect;
p.setClipRect(adjustedActionRect);
style()->drawControl(QStyle::CE_MenuBarItem, &opt, &p, this);
}
//draw border
if(int fw = style()->pixelMetric(QStyle::PM_MenuBarPanelWidth, 0, this)) {
QRegion borderReg;
borderReg += QRect(0, 0, fw, height()); //left
borderReg += QRect(width()-fw, 0, fw, height()); //right
borderReg += QRect(0, 0, width(), fw); //top
borderReg += QRect(0, height()-fw, width(), fw); //bottom
p.setClipRegion(borderReg);
emptyArea -= borderReg;
QStyleOptionFrame frame;
frame.rect = rect();
frame.palette = palette();
frame.state = QStyle::State_None;
frame.lineWidth = style()->pixelMetric(QStyle::PM_MenuBarPanelWidth);
frame.midLineWidth = 0;
style()->drawPrimitive(QStyle::PE_PanelMenuBar, &frame, &p, this);
}
p.setClipRegion(emptyArea);
QStyleOptionMenuItem menuOpt;
menuOpt.palette = palette();
menuOpt.state = QStyle::State_None;
menuOpt.menuItemType = QStyleOptionMenuItem::EmptyArea;
menuOpt.checkType = QStyleOptionMenuItem::NotCheckable;
menuOpt.rect = rect();
menuOpt.menuRect = rect();
style()->drawControl(QStyle::CE_MenuBarEmptyArea, &menuOpt, &p, this);
}
/*!
\reimp
*/
void QMenuBar::setVisible(bool visible)
{
#ifdef Q_WS_X11
Q_D(QMenuBar);
d->platformMenuBar->setVisible(visible);
#else
#if defined(Q_WS_MAC) || defined(Q_OS_WINCE) || defined(Q_WS_S60)
if (isNativeMenuBar()) {
if (!visible)
QWidget::setVisible(false);
return;
}
#endif
QWidget::setVisible(visible);
#endif // Q_WS_X11
}
/*!
\reimp
*/
void QMenuBar::mousePressEvent(QMouseEvent *e)
{
Q_D(QMenuBar);
if(e->button() != Qt::LeftButton)
return;
d->mouseDown = true;
QAction *action = d->actionAt(e->pos());
if (!action || !d->isVisible(action)) {
d->setCurrentAction(0);
#ifndef QT_NO_WHATSTHIS
if (QWhatsThis::inWhatsThisMode())
QWhatsThis::showText(e->globalPos(), d->whatsThis, this);
#endif
return;
}
if(d->currentAction == action && d->popupState) {
if(QMenu *menu = d->activeMenu) {
d->activeMenu = 0;
menu->hide();
}
#ifdef Q_WS_WIN
if((d->closePopupMode = style()->styleHint(QStyle::SH_MenuBar_DismissOnSecondClick)))
update(d->actionRect(action));
#endif
} else {
d->setCurrentAction(action, true);
}
}
/*!
\reimp
*/
void QMenuBar::mouseReleaseEvent(QMouseEvent *e)
{
Q_D(QMenuBar);
if(e->button() != Qt::LeftButton || !d->mouseDown)
return;
d->mouseDown = false;
QAction *action = d->actionAt(e->pos());
if((d->closePopupMode && action == d->currentAction) || !action || !action->menu()) {
//we set the current action before activating
//so that we let the leave event set the current back to 0
d->setCurrentAction(action, false);
if(action)
d->activateAction(action, QAction::Trigger);
}
d->closePopupMode = 0;
}
/*!
\reimp
*/
void QMenuBar::keyPressEvent(QKeyEvent *e)
{
Q_D(QMenuBar);
d->updateGeometries();
int key = e->key();
if(isRightToLeft()) { // in reverse mode open/close key for submenues are reversed
if(key == Qt::Key_Left)
key = Qt::Key_Right;
else if(key == Qt::Key_Right)
key = Qt::Key_Left;
}
if(key == Qt::Key_Tab) //means right
key = Qt::Key_Right;
else if(key == Qt::Key_Backtab) //means left
key = Qt::Key_Left;
bool key_consumed = false;
switch(key) {
case Qt::Key_Up:
case Qt::Key_Down:
case Qt::Key_Enter:
case Qt::Key_Space:
case Qt::Key_Return: {
if(!style()->styleHint(QStyle::SH_MenuBar_AltKeyNavigation, 0, this) || !d->currentAction)
break;
if(d->currentAction->menu()) {
d->popupAction(d->currentAction, true);
} else if(key == Qt::Key_Enter || key == Qt::Key_Return || key == Qt::Key_Space) {
d->activateAction(d->currentAction, QAction::Trigger);
d->setCurrentAction(d->currentAction, false);
d->setKeyboardMode(false);
}
key_consumed = true;
break; }
case Qt::Key_Right:
case Qt::Key_Left: {
if(d->currentAction) {
int index = d->actions.indexOf(d->currentAction);
if (QAction *nextAction = d->getNextAction(index, key == Qt::Key_Left ? -1 : +1)) {
d->setCurrentAction(nextAction, d->popupState, true);
key_consumed = true;
}
}
break; }
case Qt::Key_Escape:
d->setCurrentAction(0);
d->setKeyboardMode(false);
key_consumed = true;
break;
default:
key_consumed = false;
}
if(!key_consumed &&
(!e->modifiers() ||
(e->modifiers()&(Qt::MetaModifier|Qt::AltModifier))) && e->text().length()==1 && !d->popupState) {
int clashCount = 0;
QAction *first = 0, *currentSelected = 0, *firstAfterCurrent = 0;
{
QChar c = e->text()[0].toUpper();
for(int i = 0; i < d->actions.size(); ++i) {
if (d->actionRects.at(i).isNull())
continue;
QAction *act = d->actions.at(i);
QString s = act->text();
if(!s.isEmpty()) {
int ampersand = s.indexOf(QLatin1Char('&'));
if(ampersand >= 0) {
if(s[ampersand+1].toUpper() == c) {
clashCount++;
if(!first)
first = act;
if(act == d->currentAction)
currentSelected = act;
else if (!firstAfterCurrent && currentSelected)
firstAfterCurrent = act;
}
}
}
}
}
QAction *next_action = 0;
if(clashCount >= 1) {
if(clashCount == 1 || !d->currentAction || (currentSelected && !firstAfterCurrent))
next_action = first;
else
next_action = firstAfterCurrent;
}
if(next_action) {
key_consumed = true;
d->setCurrentAction(next_action, true, true);
}
}
if(key_consumed)
e->accept();
else
e->ignore();
}
/*!
\reimp
*/
void QMenuBar::mouseMoveEvent(QMouseEvent *e)
{
Q_D(QMenuBar);
if (!(e->buttons() & Qt::LeftButton))
d->mouseDown = false;
bool popupState = d->popupState || d->mouseDown;
QAction *action = d->actionAt(e->pos());
if ((action && d->isVisible(action)) || !popupState)
d->setCurrentAction(action, popupState);
}
/*!
\reimp
*/
void QMenuBar::leaveEvent(QEvent *)
{
Q_D(QMenuBar);
if((!hasFocus() && !d->popupState) ||
(d->currentAction && d->currentAction->menu() == 0))
d->setCurrentAction(0);
}
/*!
\reimp
*/
void QMenuBar::actionEvent(QActionEvent *e)
{
Q_D(QMenuBar);
d->itemsDirty = true;
#ifdef Q_WS_X11
d->platformMenuBar->actionEvent(e);
#endif
#if defined (Q_WS_MAC) || defined(Q_OS_WINCE) || defined(Q_WS_S60)
if (isNativeMenuBar()) {
#ifdef Q_WS_MAC
QMenuBarPrivate::QMacMenuBarPrivate *nativeMenuBar = d->mac_menubar;
#else
QMenuBarPrivate::QWceMenuBarPrivate *nativeMenuBar = d->wce_menubar;
#endif
if (!nativeMenuBar)
return;
if(e->type() == QEvent::ActionAdded)
nativeMenuBar->addAction(e->action(), e->before());
else if(e->type() == QEvent::ActionRemoved)
nativeMenuBar->removeAction(e->action());
else if(e->type() == QEvent::ActionChanged)
nativeMenuBar->syncAction(e->action());
}
#endif
if(e->type() == QEvent::ActionAdded) {
connect(e->action(), SIGNAL(triggered()), this, SLOT(_q_actionTriggered()));
connect(e->action(), SIGNAL(hovered()), this, SLOT(_q_actionHovered()));
} else if(e->type() == QEvent::ActionRemoved) {
e->action()->disconnect(this);
}
if (isVisible()) {
d->updateGeometries();
update();
}
}
/*!
\reimp
*/
void QMenuBar::focusInEvent(QFocusEvent *)
{
Q_D(QMenuBar);
if(d->keyboardState)
d->focusFirstAction();
}
/*!
\reimp
*/
void QMenuBar::focusOutEvent(QFocusEvent *)
{
Q_D(QMenuBar);
if(!d->popupState) {
d->setCurrentAction(0);
d->setKeyboardMode(false);
}
}
/*!
\reimp
*/
void QMenuBar::timerEvent (QTimerEvent *e)
{
Q_D(QMenuBar);
if (e->timerId() == d->autoReleaseTimer.timerId()) {
d->autoReleaseTimer.stop();
d->setCurrentAction(0);
}
QWidget::timerEvent(e);
}
void QMenuBarPrivate::handleReparent()
{
Q_Q(QMenuBar);
QWidget *newParent = q->parentWidget();
//Note: if parent is reparented, then window may change even if parent doesn't
// we need to install an event filter on parent, and remove the old one
if (oldParent != newParent) {
if (oldParent)
oldParent->removeEventFilter(q);
if (newParent)
newParent->installEventFilter(q);
}
//we also need event filter on top-level (for shortcuts)
QWidget *newWindow = newParent ? newParent->window() : 0;
if (oldWindow != newWindow) {
if (oldParent && oldParent != oldWindow)
oldWindow->removeEventFilter(q);
if (newParent && newParent != newWindow)
newWindow->installEventFilter(q);
}
#ifdef Q_WS_X11
platformMenuBar->handleReparent(oldParent, newParent, oldWindow, newWindow);
#endif
oldParent = newParent;
oldWindow = newWindow;
#ifdef Q_WS_MAC
if (q->isNativeMenuBar() && !macWidgetHasNativeMenubar(newParent)) {
// If the new parent got a native menubar from before, keep that
// menubar rather than replace it with this one (because a parents
// menubar has precedence over children menubars).
macDestroyMenuBar();
macCreateMenuBar(newParent);
}
#endif
#ifdef Q_WS_WINCE
if (qt_wince_is_mobile() && wce_menubar)
wce_menubar->rebuild();
#endif
}
/*!
\reimp
*/
void QMenuBar::changeEvent(QEvent *e)
{
Q_D(QMenuBar);
if(e->type() == QEvent::StyleChange) {
d->itemsDirty = true;
setMouseTracking(style()->styleHint(QStyle::SH_MenuBar_MouseTracking, 0, this));
if(parentWidget())
resize(parentWidget()->width(), heightForWidth(parentWidget()->width()));
d->updateGeometries();
} else if (e->type() == QEvent::ParentChange) {
d->handleReparent();
} else if (e->type() == QEvent::FontChange
|| e->type() == QEvent::ApplicationFontChange) {
d->itemsDirty = true;
d->updateGeometries();
}
QWidget::changeEvent(e);
}
/*!
\reimp
*/
bool QMenuBar::event(QEvent *e)
{
Q_D(QMenuBar);
switch (e->type()) {
case QEvent::KeyPress: {
QKeyEvent *ke = (QKeyEvent*)e;
#if 0
if(!d->keyboardState) { //all keypresses..
d->setCurrentAction(0);
return ;
}
#endif
if(ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
keyPressEvent(ke);
return true;
}
} break;
#ifndef QT_NO_SHORTCUT
case QEvent::Shortcut: {
QShortcutEvent *se = static_cast<QShortcutEvent *>(e);
int shortcutId = se->shortcutId();
for(int j = 0; j < d->shortcutIndexMap.size(); ++j) {
if (shortcutId == d->shortcutIndexMap.value(j))
d->_q_internalShortcutActivated(j);
}
} break;
#endif
case QEvent::Show:
d->_q_updateLayout();
break;
case QEvent::ShortcutOverride: {
QKeyEvent *kev = static_cast<QKeyEvent*>(e);
//we only filter out escape if there is a current action
if (kev->key() == Qt::Key_Escape && d->currentAction) {
e->accept();
return true;
}
}
break;
#ifndef QT_NO_WHATSTHIS
case QEvent::QueryWhatsThis:
e->setAccepted(d->whatsThis.size());
if (QAction *action = d->actionAt(static_cast<QHelpEvent*>(e)->pos())) {
if (action->whatsThis().size() || action->menu())
e->accept();
}
return true;
#endif
case QEvent::LayoutDirectionChange:
d->_q_updateLayout();
break;
default:
break;
}
return QWidget::event(e);
}
/*!
\reimp
*/
bool QMenuBar::eventFilter(QObject *object, QEvent *event)
{
Q_D(QMenuBar);
#ifdef Q_WS_X11
if (d->platformMenuBar->menuBarEventFilter(object, event)) {
return true;
}
#endif
if (object == parent() && object) {
if (event->type() == QEvent::ParentChange) //GrandparentChange
d->handleReparent();
}
if (object == d->leftWidget || object == d->rightWidget) {
switch (event->type()) {
case QEvent::ShowToParent:
case QEvent::HideToParent:
d->_q_updateLayout();
break;
default:
break;
}
}
if (style()->styleHint(QStyle::SH_MenuBar_AltKeyNavigation, 0, this)) {
if (d->altPressed) {
switch (event->type()) {
case QEvent::KeyPress:
case QEvent::KeyRelease:
{
QKeyEvent *kev = static_cast<QKeyEvent*>(event);
if (kev->key() == Qt::Key_Alt || kev->key() == Qt::Key_Meta) {
if (event->type() == QEvent::KeyPress) // Alt-press does not interest us, we have the shortcut-override event
break;
d->setKeyboardMode(!d->keyboardState);
}
}
// fall through
case QEvent::MouseButtonPress:
case QEvent::MouseButtonRelease:
case QEvent::MouseMove:
case QEvent::FocusIn:
case QEvent::FocusOut:
case QEvent::ActivationChange:
d->altPressed = false;
qApp->removeEventFilter(this);
break;
default:
break;
}
} else if (isVisible()) {
if (event->type() == QEvent::ShortcutOverride) {
QKeyEvent *kev = static_cast<QKeyEvent*>(event);
if ((kev->key() == Qt::Key_Alt || kev->key() == Qt::Key_Meta)
&& kev->modifiers() == Qt::AltModifier) {
d->altPressed = true;
qApp->installEventFilter(this);
}
}
}
}
return false;
}
/*!
Returns the QAction at \a pt. Returns 0 if there is no action at \a pt or if
the location has a separator.
\sa addAction(), addSeparator()
*/
QAction *QMenuBar::actionAt(const QPoint &pt) const
{
Q_D(const QMenuBar);
return d->actionAt(pt);
}
/*!
Returns the geometry of action \a act as a QRect.
\sa actionAt()
*/
QRect QMenuBar::actionGeometry(QAction *act) const
{
Q_D(const QMenuBar);
return d->actionRect(act);
}
/*!
\reimp
*/
QSize QMenuBar::minimumSizeHint() const
{
Q_D(const QMenuBar);
#if defined(Q_WS_MAC) || defined(Q_WS_WINCE) || defined(Q_WS_S60) || defined(Q_WS_X11)
const bool as_gui_menubar = !isNativeMenuBar();
#else
const bool as_gui_menubar = true;
#endif
ensurePolished();
QSize ret(0, 0);
const_cast<QMenuBarPrivate*>(d)->updateGeometries();
const int hmargin = style()->pixelMetric(QStyle::PM_MenuBarHMargin, 0, this);
const int vmargin = style()->pixelMetric(QStyle::PM_MenuBarVMargin, 0, this);
int fw = style()->pixelMetric(QStyle::PM_MenuBarPanelWidth, 0, this);
int spaceBelowMenuBar = style()->styleHint(QStyle::SH_MainWindow_SpaceBelowMenuBar, 0, this);
if(as_gui_menubar) {
int w = parentWidget() ? parentWidget()->width() : QApplication::desktop()->width();
d->calcActionRects(w - (2 * fw), 0);
for (int i = 0; ret.isNull() && i < d->actions.count(); ++i)
ret = d->actionRects.at(i).size();
if (!d->extension->isHidden())
ret += QSize(d->extension->sizeHint().width(), 0);
ret += QSize(2*fw + hmargin, 2*fw + vmargin);
}
int margin = 2*vmargin + 2*fw + spaceBelowMenuBar;
#ifdef Q_WS_X11
if (d->platformMenuBar->allowCornerWidgets()) {
#endif
if(d->leftWidget) {
QSize sz = d->leftWidget->minimumSizeHint();
ret.setWidth(ret.width() + sz.width());
if(sz.height() + margin > ret.height())
ret.setHeight(sz.height() + margin);
}
if(d->rightWidget) {
QSize sz = d->rightWidget->minimumSizeHint();
ret.setWidth(ret.width() + sz.width());
if(sz.height() + margin > ret.height())
ret.setHeight(sz.height() + margin);
}
#ifdef Q_WS_X11
}
#endif
if(as_gui_menubar) {
QStyleOptionMenuItem opt;
opt.rect = rect();
opt.menuRect = rect();
opt.state = QStyle::State_None;
opt.menuItemType = QStyleOptionMenuItem::Normal;
opt.checkType = QStyleOptionMenuItem::NotCheckable;
opt.palette = palette();
return (style()->sizeFromContents(QStyle::CT_MenuBar, &opt,
ret.expandedTo(QApplication::globalStrut()),
this));
}
return ret;
}
/*!
\reimp
*/
QSize QMenuBar::sizeHint() const
{
Q_D(const QMenuBar);
#if defined(Q_WS_MAC) || defined(Q_WS_WINCE) || defined(Q_WS_S60) || defined(Q_WS_X11)
const bool as_gui_menubar = !isNativeMenuBar();
#else
const bool as_gui_menubar = true;
#endif
ensurePolished();
QSize ret(0, 0);
const_cast<QMenuBarPrivate*>(d)->updateGeometries();
const int hmargin = style()->pixelMetric(QStyle::PM_MenuBarHMargin, 0, this);
const int vmargin = style()->pixelMetric(QStyle::PM_MenuBarVMargin, 0, this);
int fw = style()->pixelMetric(QStyle::PM_MenuBarPanelWidth, 0, this);
int spaceBelowMenuBar = style()->styleHint(QStyle::SH_MainWindow_SpaceBelowMenuBar, 0, this);
if(as_gui_menubar) {
const int w = parentWidget() ? parentWidget()->width() : QApplication::desktop()->width();
d->calcActionRects(w - (2 * fw), 0);
for (int i = 0; i < d->actionRects.count(); ++i) {
const QRect &actionRect = d->actionRects.at(i);
ret = ret.expandedTo(QSize(actionRect.x() + actionRect.width(), actionRect.y() + actionRect.height()));
}
//the action geometries already contain the top and left
//margins. So we only need to add those from right and bottom.
ret += QSize(fw + hmargin, fw + vmargin);
}
int margin = 2*vmargin + 2*fw + spaceBelowMenuBar;
#ifdef Q_WS_X11
if(d->platformMenuBar->allowCornerWidgets()) {
#endif
if(d->leftWidget) {
QSize sz = d->leftWidget->sizeHint();
ret.setWidth(ret.width() + sz.width());
if(sz.height() + margin > ret.height())
ret.setHeight(sz.height() + margin);
}
if(d->rightWidget) {
QSize sz = d->rightWidget->sizeHint();
ret.setWidth(ret.width() + sz.width());
if(sz.height() + margin > ret.height())
ret.setHeight(sz.height() + margin);
}
#ifdef Q_WS_X11
}
#endif
if(as_gui_menubar) {
QStyleOptionMenuItem opt;
opt.rect = rect();
opt.menuRect = rect();
opt.state = QStyle::State_None;
opt.menuItemType = QStyleOptionMenuItem::Normal;
opt.checkType = QStyleOptionMenuItem::NotCheckable;
opt.palette = palette();
return (style()->sizeFromContents(QStyle::CT_MenuBar, &opt,
ret.expandedTo(QApplication::globalStrut()),
this));
}
return ret;
}
/*!
\reimp
*/
int QMenuBar::heightForWidth(int) const
{
Q_D(const QMenuBar);
#if defined(Q_WS_MAC) || defined(Q_WS_WINCE) || defined(Q_WS_S60) || defined(Q_WS_X11)
const bool as_gui_menubar = !isNativeMenuBar();
#else
const bool as_gui_menubar = true;
#endif
const_cast<QMenuBarPrivate*>(d)->updateGeometries();
int height = 0;
const int vmargin = style()->pixelMetric(QStyle::PM_MenuBarVMargin, 0, this);
int fw = style()->pixelMetric(QStyle::PM_MenuBarPanelWidth, 0, this);
int spaceBelowMenuBar = style()->styleHint(QStyle::SH_MainWindow_SpaceBelowMenuBar, 0, this);
if(as_gui_menubar) {
for (int i = 0; i < d->actionRects.count(); ++i)
height = qMax(height, d->actionRects.at(i).height());
if (height) //there is at least one non-null item
height += spaceBelowMenuBar;
height += 2*fw;
height += 2*vmargin;
}
int margin = 2*vmargin + 2*fw + spaceBelowMenuBar;
#ifdef Q_WS_X11
if(d->platformMenuBar->allowCornerWidgets()) {
#endif
if(d->leftWidget)
height = qMax(d->leftWidget->sizeHint().height() + margin, height);
if(d->rightWidget)
height = qMax(d->rightWidget->sizeHint().height() + margin, height);
#ifdef Q_WS_X11
}
#endif
if(as_gui_menubar) {
QStyleOptionMenuItem opt;
opt.init(this);
opt.menuRect = rect();
opt.state = QStyle::State_None;
opt.menuItemType = QStyleOptionMenuItem::Normal;
opt.checkType = QStyleOptionMenuItem::NotCheckable;
return style()->sizeFromContents(QStyle::CT_MenuBar, &opt, QSize(0, height), this).height(); //not pretty..
}
return height;
}
/*!
\internal
*/
void QMenuBarPrivate::_q_internalShortcutActivated(int id)
{
Q_Q(QMenuBar);
QAction *act = actions.at(id);
#ifdef Q_WS_X11
if (q->isNativeMenuBar()) {
platformMenuBar->popupAction(act);
} else {
#endif
setCurrentAction(act, true, true);
#ifdef Q_WS_X11
}
#endif
if (act && !act->menu()) {
activateAction(act, QAction::Trigger);
//100 is the same as the default value in QPushButton::animateClick
autoReleaseTimer.start(100, q);
} else if (act && q->style()->styleHint(QStyle::SH_MenuBar_AltKeyNavigation, 0, q)) {
// When we open a menu using a shortcut, we should end up in keyboard state
setKeyboardMode(true);
}
}
void QMenuBarPrivate::_q_updateLayout()
{
Q_Q(QMenuBar);
itemsDirty = true;
if (q->isVisible()) {
updateGeometries();
q->update();
}
}
#ifdef Q_WS_X11
void QMenuBarPrivate::updateCornerWidgetToolBar()
{
Q_Q(QMenuBar);
if (!cornerWidgetToolBar) {
QMainWindow *window = qobject_cast<QMainWindow *>(q->window());
if (!window) {
qWarning() << "Menubar parent is not a QMainWindow, not showing corner widgets";
return;
}
cornerWidgetToolBar = window->addToolBar(QApplication::translate("QMenuBar", "Corner Toolbar"));
cornerWidgetToolBar->setObjectName(QLatin1String("CornerToolBar"));
cornerWidgetContainer = new QWidget;
cornerWidgetToolBar->addWidget(cornerWidgetContainer);
new QHBoxLayout(cornerWidgetContainer);
} else {
QLayout *layout = cornerWidgetContainer->layout();
while (layout->count() > 0) {
layout->takeAt(0);
}
}
if (leftWidget) {
leftWidget->setParent(cornerWidgetContainer);
cornerWidgetContainer->layout()->addWidget(leftWidget);
}
if (rightWidget) {
rightWidget->setParent(cornerWidgetContainer);
cornerWidgetContainer->layout()->addWidget(rightWidget);
}
}
#endif
/*!
\fn void QMenuBar::setCornerWidget(QWidget *widget, Qt::Corner corner)
This sets the given \a widget to be shown directly on the left of the first
menu item, or on the right of the last menu item, depending on \a corner.
The menu bar takes ownership of \a widget, reparenting it into the menu bar.
However, if the \a corner already contains a widget, this previous widget
will no longer be managed and will still be a visible child of the menu bar.
\note Using a corner other than Qt::TopRightCorner or Qt::TopLeftCorner
will result in a warning.
*/
void QMenuBar::setCornerWidget(QWidget *w, Qt::Corner corner)
{
Q_D(QMenuBar);
switch (corner) {
case Qt::TopLeftCorner:
if (d->leftWidget)
d->leftWidget->removeEventFilter(this);
d->leftWidget = w;
break;
case Qt::TopRightCorner:
if (d->rightWidget)
d->rightWidget->removeEventFilter(this);
d->rightWidget = w;
break;
default:
qWarning("QMenuBar::setCornerWidget: Only TopLeftCorner and TopRightCorner are supported");
return;
}
#ifdef Q_WS_X11
if(!d->platformMenuBar->allowCornerWidgets()) {
d->updateCornerWidgetToolBar();
} else {
#endif
if (w) {
w->setParent(this);
w->installEventFilter(this);
}
#ifdef Q_WS_X11
}
#endif
d->_q_updateLayout();
}
/*!
Returns the widget on the left of the first or on the right of the last menu
item, depending on \a corner.
\note Using a corner other than Qt::TopRightCorner or Qt::TopLeftCorner
will result in a warning.
*/
QWidget *QMenuBar::cornerWidget(Qt::Corner corner) const
{
Q_D(const QMenuBar);
QWidget *w = 0;
switch(corner) {
case Qt::TopLeftCorner:
w = d->leftWidget;
break;
case Qt::TopRightCorner:
w = d->rightWidget;
break;
default:
qWarning("QMenuBar::cornerWidget: Only TopLeftCorner and TopRightCorner are supported");
break;
}
return w;
}
/*!
\property QMenuBar::nativeMenuBar
\brief Whether or not a menubar will be used as a native menubar on platforms that support it
\since 4.6
This property specifies whether or not the menubar should be used as a native menubar on platforms
that support it. The currently supported platforms are Mac OS X and Windows CE. On these platforms
if this property is true, the menubar is used in the native menubar and is not in the window of
its parent, if false the menubar remains in the window. On other platforms the value of this
attribute has no effect.
The default is to follow whether the Qt::AA_DontUseNativeMenuBar attribute
is set for the application. Explicitly settings this property overrides
the presence (or abscence) of the attribute.
\sa void-qt-mac-set-native-menubar-bool-enable
*/
void QMenuBar::setNativeMenuBar(bool nativeMenuBar)
{
Q_D(QMenuBar);
#ifdef Q_WS_X11
d->platformMenuBar->setNativeMenuBar(nativeMenuBar);
#else
if (d->nativeMenuBar == -1 || (nativeMenuBar != bool(d->nativeMenuBar))) {
d->nativeMenuBar = nativeMenuBar;
#ifdef Q_WS_MAC
if (!d->nativeMenuBar) {
extern void qt_mac_clear_menubar();
qt_mac_clear_menubar();
d->macDestroyMenuBar();
const QList<QAction *> &menubarActions = actions();
for (int i = 0; i < menubarActions.size(); ++i) {
const QAction *action = menubarActions.at(i);
if (QMenu *menu = action->menu()) {
delete menu->d_func()->mac_menu;
menu->d_func()->mac_menu = 0;
}
}
} else {
d->macCreateMenuBar(parentWidget());
}
macUpdateMenuBar();
updateGeometry();
if (!d->nativeMenuBar && parentWidget())
setVisible(true);
#endif
}
#endif // Q_WS_X11
}
bool QMenuBar::isNativeMenuBar() const
{
Q_D(const QMenuBar);
#ifdef Q_WS_X11
return d->platformMenuBar->isNativeMenuBar();
#else
if (d->nativeMenuBar == -1) {
return !QApplication::instance()->testAttribute(Qt::AA_DontUseNativeMenuBar);
}
return d->nativeMenuBar;
#endif
}
/*!
\since 4.4
Sets the default action to \a act.
The default action is assigned to the left soft key. The menu is assigned
to the right soft key.
Currently there is only support for the default action on Windows
Mobile. On all other platforms this method is not available.
\sa defaultAction()
*/
#ifdef Q_WS_WINCE
void QMenuBar::setDefaultAction(QAction *act)
{
Q_D(QMenuBar);
if (d->defaultAction == act)
return;
#ifdef Q_WS_WINCE
if (qt_wince_is_mobile())
if (d->defaultAction) {
disconnect(d->defaultAction, SIGNAL(changed()), this, SLOT(_q_updateDefaultAction()));
disconnect(d->defaultAction, SIGNAL(destroyed()), this, SLOT(_q_updateDefaultAction()));
}
#endif
d->defaultAction = act;
#ifdef Q_WS_WINCE
if (qt_wince_is_mobile())
if (d->defaultAction) {
connect(d->defaultAction, SIGNAL(changed()), this, SLOT(_q_updateDefaultAction()));
connect(d->defaultAction, SIGNAL(destroyed()), this, SLOT(_q_updateDefaultAction()));
}
if (d->wce_menubar) {
d->wce_menubar->rebuild();
}
#endif
}
/*!
\since 4.4
Returns the current default action.
\sa setDefaultAction()
*/
QAction *QMenuBar::defaultAction() const
{
return d_func()->defaultAction;
}
#endif
/*!
\fn void QMenuBar::triggered(QAction *action)
This signal is emitted when an action in a menu belonging to this menubar
is triggered as a result of a mouse click; \a action is the action that
caused the signal to be emitted.
\note QMenuBar has to have ownership of the QMenu in order this signal to work.
Normally, you connect each menu action to a single slot using
QAction::triggered(), but sometimes you will want to connect
several items to a single slot (most often if the user selects
from an array). This signal is useful in such cases.
\sa hovered(), QAction::triggered()
*/
/*!
\fn void QMenuBar::hovered(QAction *action)
This signal is emitted when a menu action is highlighted; \a action
is the action that caused the event to be sent.
Often this is used to update status information.
\sa triggered(), QAction::hovered()
*/
/*!
\enum QMenuBar::Separator
\compat
\value Never
\value InWindowsStyle
*/
/*!
\fn void QMenuBar::addAction(QAction *action)
\overload
Appends the action \a action to the menu bar's list of actions.
\sa QMenu::addAction(), QWidget::addAction(), QWidget::actions()
*/
/*!
\fn uint QMenuBar::count() const
Use actions().count() instead.
*/
/*!
\fn int QMenuBar::insertItem(const QString &text, const QObject *receiver, const char* member, const QKeySequence& shortcut, int id, int index)
Use one of the insertAction() or addAction() overloads instead.
*/
/*!
\fn int QMenuBar::insertItem(const QIcon& icon, const QString &text, const QObject *receiver, const char* member, const QKeySequence& shortcut, int id, int index)
Use one of the insertAction() or addAction() overloads instead.
*/
/*!
\fn int QMenuBar::insertItem(const QPixmap &pixmap, const QObject *receiver, const char* member, const QKeySequence& shortcut, int id, int index)
Use one of the insertAction(), addAction(), insertMenu(), or
addMenu() overloads instead.
*/
/*!
\fn int QMenuBar::insertItem(const QString &text, int id, int index)
Use one of the insertAction() or addAction() overloads instead.
*/
/*!
\fn int QMenuBar::insertItem(const QIcon& icon, const QString &text, int id, int index)
Use one of the insertAction(), addAction(), insertMenu(), or
addMenu() overloads instead.
*/
/*!
\fn int QMenuBar::insertItem(const QString &text, QMenu *popup, int id, int index)
Use one of the insertMenu(), or addMenu() overloads instead.
*/
/*!
\fn int QMenuBar::insertItem(const QIcon& icon, const QString &text, QMenu *popup, int id, int index)
Use one of the insertMenu(), or addMenu() overloads instead.
*/
/*!
\fn int QMenuBar::insertItem(const QPixmap &pixmap, int id, int index)
Use one of the insertAction(), addAction(), insertMenu(), or
addMenu() overloads instead.
*/
/*!
\fn int QMenuBar::insertItem(const QPixmap &pixmap, QMenu *popup, int id, int index)
Use one of the insertMenu(), or addMenu() overloads instead.
*/
/*!
\fn void QMenuBar::removeItem(int id)
Use removeAction() instead.
*/
/*!
\fn void QMenuBar::removeItemAt(int index)
Use removeAction() instead.
*/
/*!
\fn QKeySequence QMenuBar::accel(int id) const
Use shortcut() on the relevant QAction instead.
*/
/*!
\fn void QMenuBar::setAccel(const QKeySequence& key, int id)
Use setShortcut() on the relevant QAction instead.
*/
/*!
\fn QIcon QMenuBar::iconSet(int id) const
Use icon() on the relevant QAction instead.
*/
/*!
\fn QString QMenuBar::text(int id) const
Use text() on the relevant QAction instead.
*/
/*!
\fn QPixmap QMenuBar::pixmap(int id) const
Use QPixmap(icon()) on the relevant QAction instead.
*/
/*!
\fn void QMenuBar::setWhatsThis(int id, const QString &w)
Use setWhatsThis() on the relevant QAction instead.
*/
/*!
\fn QString QMenuBar::whatsThis(int id) const
Use whatsThis() on the relevant QAction instead.
*/
/*!
\fn void QMenuBar::changeItem(int id, const QString &text)
Use setText() on the relevant QAction instead.
*/
/*!
\fn void QMenuBar::changeItem(int id, const QPixmap &pixmap)
Use setText() on the relevant QAction instead.
*/
/*!
\fn void QMenuBar::changeItem(int id, const QIcon &icon, const QString &text)
Use setIcon() and setText() on the relevant QAction instead.
*/
/*!
\fn bool QMenuBar::isItemActive(int id) const
Use activeAction() instead.
*/
/*!
\fn bool QMenuBar::isItemEnabled(int id) const
Use isEnabled() on the relevant QAction instead.
*/
/*!
\fn void QMenuBar::setItemEnabled(int id, bool enable)
Use setEnabled() on the relevant QAction instead.
*/
/*!
\fn bool QMenuBar::isItemChecked(int id) const
Use isChecked() on the relevant QAction instead.
*/
/*!
\fn void QMenuBar::setItemChecked(int id, bool check)
Use setChecked() on the relevant QAction instead.
*/
/*!
\fn bool QMenuBar::isItemVisible(int id) const
Use isVisible() on the relevant QAction instead.
*/
/*!
\fn void QMenuBar::setItemVisible(int id, bool visible)
Use setVisible() on the relevant QAction instead.
*/
/*!
\fn int QMenuBar::indexOf(int id) const
Use actions().indexOf(action) on the relevant QAction instead.
*/
/*!
\fn int QMenuBar::idAt(int index) const
Use actions instead.
*/
/*!
\fn void QMenuBar::activateItemAt(int index)
Use activate() on the relevant QAction instead.
*/
/*!
\fn bool QMenuBar::connectItem(int id, const QObject *receiver, const char* member)
Use connect() on the relevant QAction instead.
*/
/*!
\fn bool QMenuBar::disconnectItem(int id,const QObject *receiver, const char* member)
Use disconnect() on the relevant QAction instead.
*/
/*!
\fn QMenuItem *QMenuBar::findItem(int id) const
Use actions instead.
*/
/*!
\fn Separator QMenuBar::separator() const
This function is provided only to make old code compile.
*/
/*!
\fn void QMenuBar::setSeparator(Separator sep)
This function is provided only to make old code compile.
*/
/*!
\fn QRect QMenuBar::itemRect(int index)
Use actionGeometry() on the relevant QAction instead.
*/
/*!
\fn int QMenuBar::itemAtPos(const QPoint &p)
There is no equivalent way to achieve this in Qt 4.
*/
/*!
\fn void QMenuBar::activated(int itemId);
Use triggered() instead.
*/
/*!
\fn void QMenuBar::highlighted(int itemId);
Use hovered() instead.
*/
/*!
\fn void QMenuBar::setFrameRect(QRect)
\internal
*/
/*!
\fn QRect QMenuBar::frameRect() const
\internal
*/
/*!
\enum QMenuBar::DummyFrame
\internal
\value Box
\value Sunken
\value Plain
\value Raised
\value MShadow
\value NoFrame
\value Panel
\value StyledPanel
\value HLine
\value VLine
\value GroupBoxPanel
\value WinPanel
\value ToolBarPanel
\value MenuBarPanel
\value PopupPanel
\value LineEditPanel
\value TabWidgetPanel
\value MShape
*/
/*!
\fn void QMenuBar::setFrameShadow(DummyFrame)
\internal
*/
/*!
\fn DummyFrame QMenuBar::frameShadow() const
\internal
*/
/*!
\fn void QMenuBar::setFrameShape(DummyFrame)
\internal
*/
/*!
\fn DummyFrame QMenuBar::frameShape() const
\internal
*/
/*!
\fn void QMenuBar::setFrameStyle(int)
\internal
*/
/*!
\fn int QMenuBar::frameStyle() const
\internal
*/
/*!
\fn void QMenuBar::setLineWidth(int)
\internal
*/
/*!
\fn int QMenuBar::lineWidth() const
\internal
*/
/*!
\fn void QMenuBar::setMargin(int margin)
Sets the width of the margin around the contents of the widget to \a margin.
Use QWidget::setContentsMargins() instead.
\sa margin(), QWidget::setContentsMargins()
*/
/*!
\fn int QMenuBar::margin() const
Returns the width of the margin around the contents of the widget.
Use QWidget::getContentsMargins() instead.
\sa setMargin(), QWidget::getContentsMargins()
*/
/*!
\fn void QMenuBar::setMidLineWidth(int)
\internal
*/
/*!
\fn int QMenuBar::midLineWidth() const
\internal
*/
// for private slots
QT_END_NAMESPACE
#include "moc_qmenubar.h"
#endif // QT_NO_MENUBAR
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