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These rights are described in the Digia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "q3action.h" #ifndef QT_NO_ACTION #include "qevent.h" #include "q3toolbar.h" #include "qlist.h" #include "q3popupmenu.h" #include "q3accel.h" #include "qtoolbutton.h" #include "qcombobox.h" #include "qtooltip.h" #include "qwhatsthis.h" #include "qstatusbar.h" #include "qaction.h" QT_BEGIN_NAMESPACE /*! \class Q3Action \brief The Q3Action class provides an abstract user interface action that can appear both in menus and tool bars. \compat In GUI applications many commands can be invoked via a menu option, a toolbar button and a keyboard accelerator. Since the same action must be performed regardless of how the action was invoked, and since the menu and toolbar should be kept in sync, it is useful to represent a command as an \e action. An action can be added to a menu and a toolbar and will automatically keep them in sync. For example, if the user presses a Bold toolbar button the Bold menu item will automatically be checked. A Q3Action may contain an icon, a menu text, an accelerator, a status text, a "What's This?" text and a tool tip. Most of these can be set in the constructor. They can also be set independently with setIconSet(), setText(), setMenuText(), setToolTip(), setStatusTip(), setWhatsThis() and setAccel(). An action may be a toggle action e.g. a Bold toolbar button, or a command action, e.g. 'Open File' to invoke an open file dialog. Toggle actions emit the toggled() signal when their state changes. Both command and toggle actions emit the activated() signal when they are invoked. Use setToggleAction() to set an action's toggled status. To see if an action is a toggle action use isToggleAction(). A toggle action may be "on", isOn() returns true, or "off", isOn() returns false. Actions are added to widgets (menus or toolbars) using addTo(), and removed using removeFrom(). Note that when using Q3ToolBar and Q3PopupMenu, their actions must be Q3Actions. Once a Q3Action has been created it should be added to the relevant menu and toolbar and then connected to the slot which will perform the action. We recommend that actions are created as children of the window that they are used in. In most cases actions will be children of the application's main window. To prevent recursion, don't create an action as a child of a widget that the action is later added to. */ class Q3ActionPrivate { public: Q3ActionPrivate(Q3Action *act); ~Q3ActionPrivate(); QIcon *icon; QString text; QString menutext; QString tooltip; QString statustip; QString whatsthis; #ifndef QT_NO_ACCEL QKeySequence key; Q3Accel* accel; int accelid; #endif uint enabled : 1; uint visible : 1; uint toggleaction : 1; uint on : 1; uint forceDisabled : 1; uint forceInvisible : 1; Q3ActionGroupPrivate* d_group; Q3Action *action; struct MenuItem { MenuItem():popup(0),id(0){} Q3PopupMenu* popup; int id; }; // ComboItem is only necessary for actions that are // in dropdown/exclusive actiongroups. The actiongroup // will clean this up struct ComboItem { ComboItem():combo(0), id(0) {} QComboBox *combo; int id; }; //just bindings to the Qt4.0 widgets struct Action4Item { Action4Item():widget(0){} QWidget* widget; static QAction *action; }; QList action4items; QList menuitems; QList toolbuttons; QList comboitems; enum Update { Icons = 1, Visibility = 2, State = 4, EverythingElse = 8 }; void update(uint upd = EverythingElse); QString menuText() const; QString toolTip() const; QString statusTip() const; }; QAction *Q3ActionPrivate::Action4Item::action = 0; Q3ActionPrivate::Q3ActionPrivate(Q3Action *act) : icon(0), #ifndef QT_NO_ACCEL key(0), accel(0), accelid(0), #endif enabled(true), visible(true), toggleaction(false), on(false), forceDisabled(false), forceInvisible(false) , d_group(0), action(act) { } Q3ActionPrivate::~Q3ActionPrivate() { QList::Iterator ittb(toolbuttons.begin()); QToolButton *tb; while (ittb != toolbuttons.end()) { tb = *ittb; ++ittb; delete tb; } QList::Iterator itmi(menuitems.begin()); Q3ActionPrivate::MenuItem* mi; while (itmi != menuitems.end()) { mi = *itmi; ++itmi; Q3PopupMenu* menu = mi->popup; if (menu->findItem(mi->id)) menu->removeItem(mi->id); } qDeleteAll(menuitems); QList::Iterator itmi4(action4items.begin()); Q3ActionPrivate::Action4Item* mi4; while (itmi4 != action4items.end()) { mi4 = *itmi4; ++itmi4; mi4->widget->removeAction(mi4->action); } delete Q3ActionPrivate::Action4Item::action; Q3ActionPrivate::Action4Item::action = 0; qDeleteAll(action4items); QList::Iterator itci(comboitems.begin()); Q3ActionPrivate::ComboItem* ci; while (itci != comboitems.end()) { ci = *itci; ++itci; QComboBox* combo = ci->combo; combo->clear(); Q3ActionGroup *group = qobject_cast(action->parent()); if (group) { QObjectList siblings = group->queryList("Q3Action"); for (int i = 0; i < siblings.size(); ++i) { Q3Action *sib = qobject_cast(siblings.at(i)); sib->removeFrom(combo); } for (int i = 0; i < siblings.size(); ++i) { Q3Action *sib = qobject_cast(siblings.at(i)); if (sib == action) continue; sib->addTo(combo); } } } qDeleteAll(comboitems); #ifndef QT_NO_ACCEL delete accel; #endif delete icon; } class Q3ActionGroupPrivate { public: uint exclusive: 1; uint dropdown: 1; QList actions; Q3Action* selected; Q3Action* separatorAction; struct MenuItem { MenuItem():popup(0),id(0){} Q3PopupMenu* popup; int id; }; struct Action4Item { Action4Item():widget(0){} QWidget* widget; static QAction *action; }; QList action4items; QList comboboxes; QList menubuttons; QList menuitems; QList popupmenus; void update(const Q3ActionGroup *); }; QAction *Q3ActionGroupPrivate::Action4Item::action = 0; void Q3ActionPrivate::update(uint upd) { for (QList::Iterator it(menuitems.begin()); it != menuitems.end(); ++it) { MenuItem* mi = *it; QString t = menuText(); #ifndef QT_NO_ACCEL if (key) t += QLatin1Char('\t') + (QString)QKeySequence(key); #endif if (upd & State) { mi->popup->setItemEnabled(mi->id, enabled); if (toggleaction) mi->popup->setItemChecked(mi->id, on); } if (upd & Visibility) mi->popup->setItemVisible(mi->id, visible); if (upd & Icons) { if (icon) mi->popup->changeItem(mi->id, *icon, t); else mi->popup->changeItem(mi->id, QIcon(), t); } if (upd & EverythingElse) { mi->popup->changeItem(mi->id, t); if (!whatsthis.isEmpty()) mi->popup->setWhatsThis(mi->id, whatsthis); if (toggleaction) { mi->popup->setCheckable(true); mi->popup->setItemChecked(mi->id, on); } } } if(QAction *act = Action4Item::action) { if (upd & Visibility) act->setVisible(visible); if (upd & Icons) { if (icon) act->setIcon(*icon); else act->setIcon(QIcon()); } if (upd & EverythingElse) { QString text = action->menuText(); #ifndef QT_NO_ACCEL if (key) text += QLatin1Char('\t') + (QString)QKeySequence(key); #endif act->setText(text); act->setToolTip(statusTip()); act->setWhatsThis(whatsthis); } } for (QList::Iterator it2(toolbuttons.begin()); it2 != toolbuttons.end(); ++it2) { QToolButton* btn = *it2; if (upd & State) { btn->setEnabled(enabled); if (toggleaction) btn->setOn(on); } if (upd & Visibility) visible ? btn->show() : btn->hide(); if (upd & Icons) { if (icon) btn->setIconSet(*icon); else btn->setIconSet(QIcon()); } if (upd & EverythingElse) { btn->setToggleButton(toggleaction); if (!text.isEmpty()) btn->setTextLabel(text, false); #ifndef QT_NO_TOOLTIP btn->setToolTip(toolTip()); #endif #ifndef QT_NO_STATUSTIP btn->setStatusTip(statusTip()); #endif #ifndef QT_NO_WHATSTHIS QWhatsThis::remove(btn); if (!whatsthis.isEmpty()) QWhatsThis::add(btn, whatsthis); #endif } } #ifndef QT_NO_ACCEL if (accel) { accel->setEnabled(enabled && visible); if (!whatsthis.isEmpty()) accel->setWhatsThis(accelid, whatsthis); } #endif // Only used by actiongroup for (QList::Iterator it3(comboitems.begin()); it3 != comboitems.end(); ++it3) { ComboItem *ci = *it3; if (!ci->combo) return; if (ci->id == -1) { ci->id = ci->combo->count(); if (icon) ci->combo->insertItem(icon->pixmap(), text); else ci->combo->insertItem(text); } else { if (icon) ci->combo->changeItem(icon->pixmap(), text, ci->id); else ci->combo->changeItem(text, ci->id); } } } QString Q3ActionPrivate::menuText() const { if (menutext.isNull()) { QString t(text); t.replace(QLatin1Char('&'), QLatin1String("&&")); return t; } return menutext; } QString Q3ActionPrivate::toolTip() const { if (tooltip.isNull()) { #ifndef QT_NO_ACCEL if (accel) return text + QLatin1String(" (") + (QString)QKeySequence(accel->key(accelid)) + QLatin1Char(')'); #endif return text; } return tooltip; } QString Q3ActionPrivate::statusTip() const { if (statustip.isNull()) return toolTip(); return statustip; } /* internal: guesses a descriptive text from a menu text */ static QString qt_stripMenuText(QString s) { s.remove(QLatin1String("...")); s.remove(QLatin1Char('&')); return s.trimmed(); } /*! Constructs an action called \a name with parent \a parent. If \a parent is a Q3ActionGroup, the new action inserts itself into \a parent. For accelerators and status tips to work, \a parent must either be a widget, or an action group whose parent is a widget. \warning To prevent recursion, don't create an action as a child of a widget that the action is later added to. */ Q3Action::Q3Action(QObject* parent, const char* name) : QObject(parent, name) { d = new Q3ActionPrivate(this); init(); } /*! Constructs an action called \a name with parent \a parent. If \a toggle is true the action will be a toggle action, otherwise it will be a command action. If \a parent is a Q3ActionGroup, the new action inserts itself into \a parent. For accelerators and status tips to work, \a parent must either be a widget, or an action group whose parent is a widget. */ Q3Action::Q3Action(QObject* parent, const char* name, bool toggle) : QObject(parent, name) { d = new Q3ActionPrivate(this); d->toggleaction = toggle; init(); } #ifndef QT_NO_ACCEL /*! This constructor creates an action with the following properties: the icon or icon \a icon, the menu text \a menuText and keyboard accelerator \a accel. It is a child of \a parent and called \a name. If \a parent is a Q3ActionGroup, the action automatically becomes a member of it. For accelerators and status tips to work, \a parent must either be a widget, or an action group whose parent is a widget. The action uses a stripped version of \a menuText (e.g. "\&Menu Option..." becomes "Menu Option") as descriptive text for tool buttons. You can override this by setting a specific description with setText(). The same text and \a accel will be used for tool tips and status tips unless you provide text for these using setToolTip() and setStatusTip(). Call setToggleAction(true) to make the action a toggle action. \warning To prevent recursion, don't create an action as a child of a widget that the action is later added to. */ Q3Action::Q3Action(const QIcon& icon, const QString& menuText, QKeySequence accel, QObject* parent, const char* name) : QObject(parent, name) { d = new Q3ActionPrivate(this); if (!icon.isNull()) setIconSet(icon); d->text = qt_stripMenuText(menuText); d->menutext = menuText; setAccel(accel); init(); } /*! This constructor results in an icon-less action with the menu text \a menuText and keyboard accelerator \a accel. It is a child of \a parent and called \a name. If \a parent is a Q3ActionGroup, the action automatically becomes a member of it. For accelerators and status tips to work, \a parent must either be a widget, or an action group whose parent is a widget. The action uses a stripped version of \a menuText (e.g. "\&Menu Option..." becomes "Menu Option") as descriptive text for tool buttons. You can override this by setting a specific description with setText(). The same text and \a accel will be used for tool tips and status tips unless you provide text for these using setToolTip() and setStatusTip(). Call setToggleAction(true) to make the action a toggle action. \warning To prevent recursion, don't create an action as a child of a widget that the action is later added to. */ Q3Action::Q3Action(const QString& menuText, QKeySequence accel, QObject* parent, const char* name) : QObject(parent, name) { d = new Q3ActionPrivate(this); d->text = qt_stripMenuText(menuText); d->menutext = menuText; setAccel(accel); init(); } /*! This constructor creates an action with the following properties: the description \a text, the icon or icon \a icon, the menu text \a menuText and keyboard accelerator \a accel. It is a child of \a parent and called \a name. If \a toggle is true the action will be a toggle action, otherwise it will be a command action. If \a parent is a Q3ActionGroup, the action automatically becomes a member of it. For accelerators and status tips to work, \a parent must either be a widget, or an action group whose parent is a widget. The \a text and \a accel will be used for tool tips and status tips unless you provide specific text for these using setToolTip() and setStatusTip(). */ Q3Action::Q3Action(const QString& text, const QIcon& icon, const QString& menuText, QKeySequence accel, QObject* parent, const char* name, bool toggle) : QObject(parent, name) { d = new Q3ActionPrivate(this); d->toggleaction = toggle; if (!icon.isNull()) setIconSet(icon); d->text = text; d->menutext = menuText; setAccel(accel); init(); } /*! This constructor results in an icon-less action with the description \a text, the menu text \a menuText and the keyboard accelerator \a accel. Its parent is \a parent and it is called \a name. If \a toggle is true the action will be a toggle action, otherwise it will be a command action. The action automatically becomes a member of \a parent if \a parent is a Q3ActionGroup. For accelerators and status tips to work, \a parent must either be a widget, or an action group whose parent is a widget. The \a text and \a accel will be used for tool tips and status tips unless you provide specific text for these using setToolTip() and setStatusTip(). */ Q3Action::Q3Action(const QString& text, const QString& menuText, QKeySequence accel, QObject* parent, const char* name, bool toggle) : QObject(parent, name) { d = new Q3ActionPrivate(this); d->toggleaction = toggle; d->text = text; d->menutext = menuText; setAccel(accel); init(); } #endif /*! \internal */ void Q3Action::init() { if (qobject_cast(parent())) ((Q3ActionGroup*) parent())->add(this); // insert into action group } /*! Destroys the object and frees allocated resources. */ Q3Action::~Q3Action() { delete d; } /*! \property Q3Action::iconSet \brief the action's icon The icon is used as the tool button icon and in the menu to the left of the menu text. There is no default icon. If a null icon (QIcon::isNull() is passed into this function, the icon of the action is cleared. (See the action/toggleaction/toggleaction.cpp example.) */ void Q3Action::setIconSet(const QIcon& icon) { register QIcon *i = d->icon; if (!icon.isNull()) d->icon = new QIcon(icon); else d->icon = 0; delete i; d->update(Q3ActionPrivate::Icons); } QIcon Q3Action::iconSet() const { if (d->icon) return *d->icon; return QIcon(); } /*! \property Q3Action::text \brief the action's descriptive text \sa setMenuText() setToolTip() setStatusTip() */ void Q3Action::setText(const QString& text) { d->text = text; d->update(); } QString Q3Action::text() const { return d->text; } /*! \property Q3Action::menuText \brief the action's menu text If the action is added to a menu the menu option will consist of the icon (if there is one), the menu text and the accelerator (if there is one). If the menu text is not explicitly set in the constructor or by using setMenuText() the action's description text will be used as the menu text. There is no default menu text. \sa text */ void Q3Action::setMenuText(const QString& text) { if (d->menutext == text) return; d->menutext = text; d->update(); } QString Q3Action::menuText() const { return d->menuText(); } /*! \property Q3Action::toolTip \brief the action's tool tip This text is used for the tool tip. If no status tip has been set the tool tip will be used for the status tip. If no tool tip is specified the action's text is used, and if that hasn't been specified the description text is used as the tool tip text. There is no default tool tip text. \sa setStatusTip() setAccel() */ void Q3Action::setToolTip(const QString& tip) { if (d->tooltip == tip) return; d->tooltip = tip; d->update(); } QString Q3Action::toolTip() const { return d->toolTip(); } /*! \property Q3Action::statusTip \brief the action's status tip The statusTip is displayed on all status bars that this action's top-level parent widget provides. If no status tip is defined, the action uses the tool tip text. There is no default statusTip text. \sa setToolTip() */ void Q3Action::setStatusTip(const QString& tip) { // Old comment: ### Please reimp for Q3ActionGroup! // For consistency reasons even action groups should show // status tips (as they already do with tool tips) // Please change Q3ActionGroup class doc appropriately after // reimplementation. if (d->statustip == tip) return; d->statustip = tip; d->update(); } QString Q3Action::statusTip() const { return d->statusTip(); } /*! \property Q3Action::whatsThis \brief the action's "What's This?" help text The whats this text is used to provide a brief description of the action. The text may contain rich text (HTML-like tags -- see QStyleSheet for the list of supported tags). There is no default "What's This?" text. \sa QWhatsThis */ void Q3Action::setWhatsThis(const QString& whatsThis) { if (d->whatsthis == whatsThis) return; d->whatsthis = whatsThis; d->update(); } QString Q3Action::whatsThis() const { return d->whatsthis; } #ifndef QT_NO_ACCEL /*! \property Q3Action::accel \brief the action's accelerator key The keycodes can be found in \l Qt::Key and \l Qt::Modifier. There is no default accelerator key. */ //#### Please reimp for Q3ActionGroup! //#### For consistency reasons even Q3ActionGroups should respond to //#### their accelerators and e.g. open the relevant submenu. //#### Please change appropriate Q3ActionGroup class doc after //#### reimplementation. void Q3Action::setAccel(const QKeySequence& key) { if (d->key == key) return; d->key = key; delete d->accel; d->accel = 0; if (!(int)key) { d->update(); return; } QObject* p = parent(); while (p && !p->isWidgetType()) { p = p->parent(); } if (p) { d->accel = new Q3Accel((QWidget*)p, this, "qt_action_accel"); d->accelid = d->accel->insertItem(d->key); d->accel->connectItem(d->accelid, this, SLOT(internalActivation())); } else qWarning("Q3Action::setAccel() (%s) requires widget in parent chain", objectName().toLocal8Bit().data()); d->update(); } QKeySequence Q3Action::accel() const { return d->key; } #endif /*! \property Q3Action::toggleAction \brief whether the action is a toggle action A toggle action is one which has an on/off state. For example a Bold toolbar button is either on or off. An action which is not a toggle action is a command action; a command action is simply executed, e.g. file save. This property's default is false. In some situations, the state of one toggle action should depend on the state of others. For example, "Left Align", "Center" and "Right Align" toggle actions are mutually exclusive. To achieve exclusive toggling, add the relevant toggle actions to a Q3ActionGroup with the \l Q3ActionGroup::exclusive property set to true. */ void Q3Action::setToggleAction(bool enable) { if (enable == (bool)d->toggleaction) return; if (!enable) d->on = false; d->toggleaction = enable; d->update(); } bool Q3Action::isToggleAction() const { return d->toggleaction; } /*! Activates the action and executes all connected slots. This only works for actions that are not toggle actions. \sa toggle() */ void Q3Action::activate() { if (isToggleAction()) { #if defined(QT_CHECK_STATE) qWarning("Q3Action::%s() (%s) Toggle actions " "can not be activated", "activate", objectName().toLocal8Bit().data()); #endif return; } emit activated(); } /*! Toggles the state of a toggle action. \sa on, activate(), toggled(), isToggleAction() */ void Q3Action::toggle() { if (!isToggleAction()) { qWarning("Q3Action::%s() (%s) Only toggle actions " "can be switched", "toggle", objectName().toLocal8Bit().data()); return; } setOn(!isOn()); } /*! \property Q3Action::on \brief whether a toggle action is on This property is always on (true) for command actions and \l{Q3ActionGroup}s; setOn() has no effect on them. For action's where isToggleAction() is true, this property's default value is off (false). \sa toggleAction */ void Q3Action::setOn(bool enable) { if (!isToggleAction()) { if (enable) qWarning("Q3Action::%s() (%s) Only toggle actions " "can be switched", "setOn", objectName().toLocal8Bit().data()); return; } if (enable == (bool)d->on) return; d->on = enable; d->update(Q3ActionPrivate::State); emit toggled(enable); } bool Q3Action::isOn() const { return d->on; } /*! \property Q3Action::enabled \brief whether the action is enabled Disabled actions can't be chosen by the user. They don't disappear from the menu/tool bar but are displayed in a way which indicates that they are unavailable, e.g. they might be displayed grayed out. What's this? help on disabled actions is still available provided the \l Q3Action::whatsThis property is set. */ void Q3Action::setEnabled(bool enable) { d->forceDisabled = !enable; if ((bool)d->enabled == enable) return; d->enabled = enable; d->update(Q3ActionPrivate::State); } bool Q3Action::isEnabled() const { return d->enabled; } /*! Disables the action if \a disable is true; otherwise enables the action. See the \l enabled documentation for more information. */ void Q3Action::setDisabled(bool disable) { setEnabled(!disable); } /*! \property Q3Action::visible \brief whether the action can be seen (e.g. in menus and toolbars) If \e visible is true the action can be seen (e.g. in menus and toolbars) and chosen by the user; if \e visible is false the action cannot be seen or chosen by the user. Actions which are not visible are \e not grayed out; they do not appear at all. */ void Q3Action::setVisible(bool visible) { d->forceInvisible = !visible; if ((bool)d->visible == visible) return; d->visible = visible; d->update(Q3ActionPrivate::Visibility); } /* Returns true if the action is visible (e.g. in menus and toolbars); otherwise returns false. */ bool Q3Action::isVisible() const { return d->visible; } /*! \internal */ void Q3Action::internalActivation() { if (isToggleAction()) setOn(!isOn()); emit activated(); } /*! \internal */ void Q3Action::toolButtonToggled(bool on) { if (!isToggleAction()) return; setOn(on); } /*! Adds this action to widget \a w. Currently actions may be added to Q3ToolBar and Q3PopupMenu widgets. An action added to a tool bar is automatically displayed as a tool button; an action added to a pop up menu appears as a menu option. addTo() returns true if the action was added successfully and false otherwise. (If \a w is not a Q3ToolBar or Q3PopupMenu the action will not be added and false will be returned.) \sa removeFrom() */ bool Q3Action::addTo(QWidget* w) { #ifndef QT_NO_TOOLBAR if (qobject_cast(w)) { if (objectName() == QLatin1String("qt_separator_action")) { ((Q3ToolBar*)w)->addSeparator(); } else { QString bname = objectName() + QLatin1String("_action_button"); QToolButton* btn = new QToolButton((Q3ToolBar*) w); btn->setObjectName(bname); addedTo(btn, w); btn->setToggleButton(d->toggleaction); d->toolbuttons.append(btn); if (d->icon) btn->setIconSet(*d->icon); d->update(Q3ActionPrivate::State | Q3ActionPrivate::Visibility | Q3ActionPrivate::EverythingElse) ; connect(btn, SIGNAL(clicked()), this, SIGNAL(activated())); connect(btn, SIGNAL(toggled(bool)), this, SLOT(toolButtonToggled(bool))); connect(btn, SIGNAL(destroyed()), this, SLOT(objectDestroyed())); } } else #endif if (qobject_cast(w)) { Q3ActionPrivate::MenuItem* mi = new Q3ActionPrivate::MenuItem; mi->popup = (Q3PopupMenu*) w; QIcon* dicon = d->icon; if (objectName() == QLatin1String("qt_separator_action")) mi->id = ((Q3PopupMenu*)w)->insertSeparator(); else if (dicon) mi->id = mi->popup->insertItem(*dicon, QString::fromLatin1("")); else mi->id = mi->popup->insertItem(QString::fromLatin1("")); addedTo(mi->popup->indexOf(mi->id), mi->popup); mi->popup->connectItem(mi->id, this, SLOT(internalActivation())); d->menuitems.append(mi); d->update(Q3ActionPrivate::State | Q3ActionPrivate::Visibility | Q3ActionPrivate::EverythingElse); connect(mi->popup, SIGNAL(highlighted(int)), this, SLOT(menuStatusText(int))); connect(mi->popup, SIGNAL(aboutToHide()), this, SLOT(clearStatusText())); connect(mi->popup, SIGNAL(destroyed()), this, SLOT(objectDestroyed())); // Makes only sense when called by Q3ActionGroup::addTo } else if (qobject_cast(w)) { Q3ActionPrivate::ComboItem *ci = new Q3ActionPrivate::ComboItem; ci->combo = (QComboBox*)w; connect(ci->combo, SIGNAL(destroyed()), this, SLOT(objectDestroyed())); ci->id = ci->combo->count(); if (objectName() == QLatin1String("qt_separator_action")) { if (d->icon) ci->combo->insertItem(d->icon->pixmap(), text()); else ci->combo->insertItem(text()); } else { ci->id = -1; } d->comboitems.append(ci); d->update(Q3ActionPrivate::State | Q3ActionPrivate::EverythingElse); } else if(qobject_cast(w)) { Q3ActionPrivate::Action4Item *act = new Q3ActionPrivate::Action4Item; if(!act->action) { //static act->action = new QAction(this); if (objectName() == QLatin1String("qt_separator_action")) act->action->setSeparator(true); } act->widget = w; act->widget->addAction(act->action); d->action4items.append(act); d->update(Q3ActionPrivate::State | Q3ActionPrivate::EverythingElse); } else { qWarning("Q3Action::addTo(), unknown object"); return false; } return true; } /*! This function is called from the addTo() function when it has created a widget (\a actionWidget) for the action in the \a container. */ void Q3Action::addedTo(QWidget *actionWidget, QWidget *container) { Q_UNUSED(actionWidget); Q_UNUSED(container); } /*! \overload This function is called from the addTo() function when it has created a menu item at the index position \a index in the popup menu \a menu. */ void Q3Action::addedTo(int index, Q3PopupMenu *menu) { Q_UNUSED(index); Q_UNUSED(menu); } /*! Sets the status message to \a text */ void Q3Action::showStatusText(const QString& text) { #ifndef QT_NO_STATUSBAR // find out whether we are clearing the status bar by the popup that actually set the text static Q3PopupMenu *lastmenu = 0; QObject *s = (QObject*)sender(); if (s) { Q3PopupMenu *menu = qobject_cast(s); if (menu && text.size()) lastmenu = menu; else if (menu && text.isEmpty()) { if (lastmenu && menu != lastmenu) return; lastmenu = 0; } } QObject* par = parent(); QObject* lpar = 0; QStatusBar *bar = 0; while (par && !bar) { lpar = par; bar = (QStatusBar*)par->child(0, "QStatusBar", false); par = par->parent(); } if (!bar && lpar) { QObjectList l = lpar->queryList("QStatusBar"); if (l.isEmpty()) return; // #### hopefully the last one is the one of the mainwindow... bar = static_cast(l.at(l.size()-1)); } if (bar) { if (text.isEmpty()) bar->clearMessage(); else bar->showMessage(text); } #endif } /*! Sets the status message to the menu item's status text, or to the tooltip, if there is no status text. */ void Q3Action::menuStatusText(int id) { static int lastId = 0; QString text; QList::Iterator it(d->menuitems.begin()); while (it != d->menuitems.end()) { if ((*it)->id == id) { text = statusTip(); break; } ++it; } if (!text.isEmpty()) showStatusText(text); else if (id != lastId) clearStatusText(); lastId = id; } /*! Clears the status text. */ void Q3Action::clearStatusText() { if (!statusTip().isEmpty()) showStatusText(QString()); } /*! Removes the action from widget \a w. Returns true if the action was removed successfully; otherwise returns false. \sa addTo() */ bool Q3Action::removeFrom(QWidget* w) { #ifndef QT_NO_TOOLBAR if (qobject_cast(w)) { QList::Iterator it(d->toolbuttons.begin()); QToolButton* btn; while (it != d->toolbuttons.end()) { btn = *it; ++it; if (btn->parentWidget() == w) { d->toolbuttons.removeAll(btn); disconnect(btn, SIGNAL(destroyed()), this, SLOT(objectDestroyed())); delete btn; // no need to disconnect from status bar } } } else #endif if (qobject_cast(w)) { QList::Iterator it(d->menuitems.begin()); Q3ActionPrivate::MenuItem* mi; while (it != d->menuitems.end()) { mi = *it; ++it; if (mi->popup == w) { disconnect(mi->popup, SIGNAL(highlighted(int)), this, SLOT(menuStatusText(int))); disconnect(mi->popup, SIGNAL(aboutToHide()), this, SLOT(clearStatusText())); disconnect(mi->popup, SIGNAL(destroyed()), this, SLOT(objectDestroyed())); mi->popup->removeItem(mi->id); d->menuitems.removeAll(mi); delete mi; } } } else if (qobject_cast(w)) { QList::Iterator it(d->comboitems.begin()); Q3ActionPrivate::ComboItem *ci; while (it != d->comboitems.end()) { ci = *it; ++it; if (ci->combo == w) { disconnect(ci->combo, SIGNAL(destroyed()), this, SLOT(objectDestroyed())); d->comboitems.removeAll(ci); delete ci; } } } else if (qobject_cast(w)) { QList::Iterator it(d->action4items.begin()); Q3ActionPrivate::Action4Item *a4i; while (it != d->action4items.end()) { a4i = *it; ++it; if (a4i->widget == w) { a4i->widget->removeAction(a4i->action); d->action4items.removeAll(a4i); delete a4i; } } } else { qWarning("Q3Action::removeFrom(), unknown object"); return false; } return true; } /*! \internal */ void Q3Action::objectDestroyed() { const QObject* obj = sender(); Q3ActionPrivate::MenuItem* mi; for (int i = 0; i < d->menuitems.size();) { mi = d->menuitems.at(i); ++i; if (mi->popup == obj) { d->menuitems.removeAll(mi); delete mi; } } Q3ActionPrivate::ComboItem *ci; QList::Iterator it2(d->comboitems.begin()); while (it2 != d->comboitems.end()) { ci = *it2; ++it2; if (ci->combo == obj) { d->comboitems.removeAll(ci); delete ci; } } d->toolbuttons.removeAll((QToolButton *)obj); } /*! \fn void Q3Action::activated() This signal is emitted when an action is activated by the user, e.g. when the user clicks a menu option or a toolbar button or presses an action's accelerator key combination. Connect to this signal for command actions. Connect to the toggled() signal for toggle actions. */ /*! \fn void Q3Action::toggled(bool on) This signal is emitted when a toggle action changes state; command actions and \l{Q3ActionGroup}s don't emit toggled(). The \a on argument denotes the new state: If \a on is true the toggle action is switched on, and if \a on is false the toggle action is switched off. To trigger a user command depending on whether a toggle action has been switched on or off connect it to a slot that takes a bool to indicate the state. \sa activated() setToggleAction() setOn() */ void Q3ActionGroupPrivate::update(const Q3ActionGroup* that) { for (QList::Iterator it(actions.begin()); it != actions.end(); ++it) { if (that->isEnabled() && !(*it)->d->forceDisabled) (*it)->setEnabled(true); else if (!that->isEnabled() && (*it)->isEnabled()) { (*it)->setEnabled(false); (*it)->d->forceDisabled = false; } if (that->isVisible() && !(*it)->d->forceInvisible) { (*it)->setVisible(true); } else if (!that->isVisible() && (*it)->isVisible()) { (*it)->setVisible(false); (*it)->d->forceInvisible = false; } } for (QList::Iterator cb(comboboxes.begin()); cb != comboboxes.end(); ++cb) { QComboBox *combobox = *cb; combobox->setEnabled(that->isEnabled()); combobox->setShown(that->isVisible()); #ifndef QT_NO_TOOLTIP QToolTip::remove(combobox); if (that->toolTip().size()) QToolTip::add(combobox, that->toolTip()); #endif #ifndef QT_NO_WHATSTHIS QWhatsThis::remove(combobox); if (that->whatsThis().size()) QWhatsThis::add(combobox, that->whatsThis()); #endif } for (QList::Iterator mb(menubuttons.begin()); mb != menubuttons.end(); ++mb) { QToolButton *button = *mb; button->setEnabled(that->isEnabled()); button->setShown(that->isVisible()); if (!that->text().isNull()) button->setTextLabel(that->text()); if (!that->iconSet().isNull()) button->setIconSet(that->iconSet()); #ifndef QT_NO_TOOLTIP QToolTip::remove(*mb); if (that->toolTip().size()) QToolTip::add(button, that->toolTip()); #endif #ifndef QT_NO_WHATSTHIS QWhatsThis::remove(button); if (that->whatsThis().size()) QWhatsThis::add(button, that->whatsThis()); #endif } if(QAction *act = Q3ActionGroupPrivate::Action4Item::action) { act->setVisible(that->isVisible()); act->setEnabled(that->isEnabled()); } for (QList::Iterator pu(menuitems.begin()); pu != menuitems.end(); ++pu) { QWidget* parent = (*pu)->popup->parentWidget(); if (qobject_cast(parent)) { Q3PopupMenu* ppopup = (Q3PopupMenu*)parent; ppopup->setItemEnabled((*pu)->id, that->isEnabled()); ppopup->setItemVisible((*pu)->id, that->isVisible()); } else { (*pu)->popup->setEnabled(that->isEnabled()); } } for (QList::Iterator pm(popupmenus.begin()); pm != popupmenus.end(); ++pm) { Q3PopupMenu *popup = *pm; Q3PopupMenu *parent = qobject_cast(popup->parentWidget()); if (!parent) continue; int index; parent->findPopup(popup, &index); int id = parent->idAt(index); if (!that->iconSet().isNull()) parent->changeItem(id, that->iconSet(), that->menuText()); else parent->changeItem(id, that->menuText()); parent->setItemEnabled(id, that->isEnabled()); #ifndef QT_NO_ACCEL parent->setAccel(that->accel(), id); #endif } } /*! \class Q3ActionGroup \brief The Q3ActionGroup class groups actions together. \compat In some situations it is useful to group actions together. For example, if you have a left justify action, a right justify action and a center action, only one of these actions should be active at any one time, and one simple way of achieving this is to group the actions together in an action group. An action group can also be added to a menu or a toolbar as a single unit, with all the actions within the action group appearing as separate menu options and toolbar buttons. The actions in an action group emit their activated() (and for toggle actions, toggled()) signals as usual. The setExclusive() function is used to ensure that only one action is active at any one time: it should be used with actions which have their \c toggleAction set to true. Action group actions appear as individual menu options and toolbar buttons. For exclusive action groups use setUsesDropDown() to display the actions in a subwidget of any widget the action group is added to. For example, the actions would appear in a combobox in a toolbar or as a submenu in a menu. Actions can be added to an action group using add(), but normally they are added by creating the action with the action group as parent. Actions can have separators dividing them using addSeparator(). Action groups are added to widgets with addTo(). */ /*! Constructs an action group called \a name, with parent \a parent. The action group is exclusive by default. Call setExclusive(false) to make the action group non-exclusive. */ Q3ActionGroup::Q3ActionGroup(QObject* parent, const char* name) : Q3Action(parent, name) { d = new Q3ActionGroupPrivate; d->exclusive = true; d->dropdown = false; d->selected = 0; d->separatorAction = 0; connect(this, SIGNAL(selected(Q3Action*)), SLOT(internalToggle(Q3Action*))); } /*! Constructs an action group called \a name, with parent \a parent. If \a exclusive is true only one toggle action in the group will ever be active. \sa exclusive */ Q3ActionGroup::Q3ActionGroup(QObject* parent, const char* name, bool exclusive) : Q3Action(parent, name) { d = new Q3ActionGroupPrivate; d->exclusive = exclusive; d->dropdown = false; d->selected = 0; d->separatorAction = 0; connect(this, SIGNAL(selected(Q3Action*)), SLOT(internalToggle(Q3Action*))); } /*! Destroys the object and frees allocated resources. */ Q3ActionGroup::~Q3ActionGroup() { QList::Iterator mit(d->menuitems.begin()); while (mit != d->menuitems.end()) { Q3ActionGroupPrivate::MenuItem *mi = *mit; ++mit; if (mi->popup) mi->popup->disconnect(SIGNAL(destroyed()), this, SLOT(objectDestroyed())); } QList::Iterator cbit(d->comboboxes.begin()); while (cbit != d->comboboxes.end()) { QComboBox *cb = *cbit; ++cbit; cb->disconnect(SIGNAL(destroyed()), this, SLOT(objectDestroyed())); } QList::Iterator mbit(d->menubuttons.begin()); while (mbit != d->menubuttons.end()) { QToolButton *mb = *mbit; ++mbit; mb->disconnect(SIGNAL(destroyed()), this, SLOT(objectDestroyed())); } QList::Iterator pmit(d->popupmenus.begin()); while (pmit != d->popupmenus.end()) { Q3PopupMenu *pm = *pmit; ++pmit; pm->disconnect(SIGNAL(destroyed()), this, SLOT(objectDestroyed())); } QList::Iterator itmi4(d->action4items.begin()); Q3ActionGroupPrivate::Action4Item* mi4; while (itmi4 != d->action4items.end()) { mi4 = *itmi4; ++itmi4; mi4->widget->removeAction(mi4->action); } delete Q3ActionPrivate::Action4Item::action; Q3ActionPrivate::Action4Item::action = 0; delete d->separatorAction; while (!d->menubuttons.isEmpty()) delete d->menubuttons.takeFirst(); while (!d->comboboxes.isEmpty()) delete d->comboboxes.takeFirst(); while (!d->menuitems.isEmpty()) delete d->menuitems.takeFirst(); while (!d->popupmenus.isEmpty()) delete d->popupmenus.takeFirst(); delete d; } /*! \property Q3ActionGroup::exclusive \brief whether the action group does exclusive toggling If exclusive is true only one toggle action in the action group can ever be active at any one time. If the user chooses another toggle action in the group the one they chose becomes active and the one that was active becomes inactive. \sa Q3Action::toggleAction */ void Q3ActionGroup::setExclusive(bool enable) { d->exclusive = enable; } bool Q3ActionGroup::isExclusive() const { return d->exclusive; } /*! \property Q3ActionGroup::usesDropDown \brief whether the group's actions are displayed in a subwidget of the widgets the action group is added to Exclusive action groups added to a toolbar display their actions in a combobox with the action's \l Q3Action::text and \l Q3Action::iconSet properties shown. Non-exclusive groups are represented by a tool button showing their \l Q3Action::iconSet and text() property. In a popup menu the member actions are displayed in a submenu. Changing usesDropDown only affects \e subsequent calls to addTo(). This property's default is false. */ void Q3ActionGroup::setUsesDropDown(bool enable) { d->dropdown = enable; } bool Q3ActionGroup::usesDropDown() const { return d->dropdown; } /*! Adds action \a action to this group. Normally an action is added to a group by creating it with the group as parent, so this function is not usually used. \sa addTo() */ void Q3ActionGroup::add(Q3Action* action) { if (d->actions.contains(action)) return; d->actions.append(action); if (action->whatsThis().isNull()) action->setWhatsThis(whatsThis()); if (action->toolTip().isNull()) action->setToolTip(toolTip()); if (!action->d->forceDisabled) action->d->enabled = isEnabled(); if (!action->d->forceInvisible) action->d->visible = isVisible(); connect(action, SIGNAL(destroyed()), this, SLOT(childDestroyed())); connect(action, SIGNAL(activated()), this, SIGNAL(activated())); connect(action, SIGNAL(toggled(bool)), this, SLOT(childToggled(bool))); connect(action, SIGNAL(activated()), this, SLOT(childActivated())); for (QList::Iterator cb(d->comboboxes.begin()); cb != d->comboboxes.end(); ++cb) action->addTo(*cb); for (QList::Iterator mb(d->menubuttons.begin()); mb != d->menubuttons.end(); ++mb) { QMenu* menu = (*mb)->popup(); if (!menu) continue; action->addTo(menu); } for (QList::Iterator ac(d->action4items.begin()); ac != d->action4items.end(); ++ac) action->addTo((*ac)->action->menu()); for (QList::Iterator mi(d->menuitems.begin()); mi != d->menuitems.end(); ++mi) { Q3PopupMenu* popup = (*mi)->popup; if (!popup) continue; action->addTo(popup); } } /*! Adds a separator to the group. */ void Q3ActionGroup::addSeparator() { if (!d->separatorAction) d->separatorAction = new Q3Action(0, "qt_separator_action"); d->actions.append(d->separatorAction); } /*! Adds this action group to the widget \a w. If isExclusive() is false or usesDropDown() is false, the actions within the group are added to the widget individually. For example, if the widget is a menu, the actions will appear as individual menu options, and if the widget is a toolbar, the actions will appear as toolbar buttons. If both isExclusive() and usesDropDown() are true, the actions are presented either in a combobox (if \a w is a toolbar) or in a submenu (if \a w is a menu). All actions should be added to the action group \e before the action group is added to the widget. If actions are added to the action group \e after the action group has been added to the widget these later actions will \e not appear. \sa setExclusive() setUsesDropDown() removeFrom() */ bool Q3ActionGroup::addTo(QWidget *w) { #ifndef QT_NO_TOOLBAR if (qobject_cast(w)) { if (d->dropdown) { if (!d->exclusive) { QList::Iterator it(d->actions.begin()); if (it == d->actions.end() || !(*it)) return true; Q3Action *defAction = *it; QToolButton* btn = new QToolButton((Q3ToolBar*) w, "qt_actiongroup_btn"); addedTo(btn, w); connect(btn, SIGNAL(destroyed()), SLOT(objectDestroyed())); d->menubuttons.append(btn); if (!iconSet().isNull()) btn->setIconSet(iconSet()); else if (!defAction->iconSet().isNull()) btn->setIconSet(defAction->iconSet()); if (text().size()) btn->setTextLabel(text()); else if (defAction->text().size()) btn->setTextLabel(defAction->text()); #ifndef QT_NO_TOOLTIP if (toolTip().size()) QToolTip::add(btn, toolTip()); else if (defAction->toolTip().size()) QToolTip::add(btn, defAction->toolTip()); #endif #ifndef QT_NO_WHATSTHIS if (whatsThis().size()) QWhatsThis::add(btn, whatsThis()); else if (defAction->whatsThis().size()) QWhatsThis::add(btn, defAction->whatsThis()); #endif connect(btn, SIGNAL(clicked()), defAction, SIGNAL(activated())); connect(btn, SIGNAL(toggled(bool)), defAction, SLOT(toolButtonToggled(bool))); connect(btn, SIGNAL(destroyed()), defAction, SLOT(objectDestroyed())); Q3PopupMenu *menu = new Q3PopupMenu(btn, "qt_actiongroup_menu"); btn->setPopupDelay(0); btn->setPopup(menu); btn->setPopupMode(QToolButton::MenuButtonPopup); while (it != d->actions.end()) { (*it)->addTo(menu); ++it; } d->update(this); return true; } else { QComboBox *box = new QComboBox(false, w, "qt_actiongroup_combo"); addedTo(box, w); connect(box, SIGNAL(destroyed()), SLOT(objectDestroyed())); d->comboboxes.append(box); #ifndef QT_NO_TOOLTIP if (toolTip().size()) QToolTip::add(box, toolTip()); #endif #ifndef QT_NO_WHATSTHIS if (whatsThis().size()) QWhatsThis::add(box, whatsThis()); #endif int onIndex = 0; bool foundOn = false; for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) { Q3Action *action = *it; if (!foundOn) foundOn = action->isOn(); if (action->objectName() != QLatin1String("qt_separator_action") && !foundOn) onIndex++; action->addTo(box); } if (foundOn) box->setCurrentItem(onIndex); connect(box, SIGNAL(activated(int)), this, SLOT(internalComboBoxActivated(int))); connect(box, SIGNAL(highlighted(int)), this, SLOT(internalComboBoxHighlighted(int))); d->update(this); return true; } } } else #endif if (qobject_cast(w)) { Q3PopupMenu *popup; if (d->dropdown) { Q3PopupMenu *menu = (Q3PopupMenu*)w; popup = new Q3PopupMenu(w, "qt_actiongroup_menu"); d->popupmenus.append(popup); connect(popup, SIGNAL(destroyed()), SLOT(objectDestroyed())); int id; if (!iconSet().isNull()) { if (menuText().isEmpty()) id = menu->insertItem(iconSet(), text(), popup); else id = menu->insertItem(iconSet(), menuText(), popup); } else { if (menuText().isEmpty()) id = menu->insertItem(text(), popup); else id = menu->insertItem(menuText(), popup); } addedTo(menu->indexOf(id), menu); Q3ActionGroupPrivate::MenuItem *item = new Q3ActionGroupPrivate::MenuItem; item->id = id; item->popup = popup; d->menuitems.append(item); } else { popup = (Q3PopupMenu*)w; } for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) { // #### do an addedTo(index, popup, action), need to find out index (*it)->addTo(popup); } return true; } if (qobject_cast(w)) { QMenu *menu = (QMenu*)w; if (d->dropdown) { Q3ActionGroupPrivate::Action4Item *ai = new Q3ActionGroupPrivate::Action4Item; if(!ai->action) { //static ai->action = menu->menuAction(); if (!iconSet().isNull()) ai->action->setIcon(iconSet()); if (menuText().isEmpty()) ai->action->setText(text()); else ai->action->setText(menuText()); } addedTo(w, w); ai->widget = w; ai->widget->addAction(Q3ActionGroupPrivate::Action4Item::action); d->action4items.append(ai); menu = ai->action->menu(); } for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) (*it)->addTo(menu); return true; } for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) { // #### do an addedTo(index, popup, action), need to find out index (*it)->addTo(w); } return true; } /*! \reimp */ bool Q3ActionGroup::removeFrom(QWidget* w) { for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) (*it)->removeFrom(w); #ifndef QT_NO_TOOLBAR if (qobject_cast(w)) { QList::Iterator cb(d->comboboxes.begin()); while (cb != d->comboboxes.end()) { QComboBox *box = *cb; ++cb; if (box->parentWidget() == w) delete box; } QList::Iterator mb(d->menubuttons.begin()); while (mb != d->menubuttons.end()) { QToolButton *btn = *mb; ++mb; if (btn->parentWidget() == w) delete btn; } } else #endif if (qobject_cast(w)) { QList::Iterator pu(d->menuitems.begin()); while (pu != d->menuitems.end()) { Q3ActionGroupPrivate::MenuItem *mi = *pu; ++pu; if (d->dropdown && mi->popup) ((Q3PopupMenu*)w)->removeItem(mi->id); delete mi->popup; } } if (qobject_cast(w)) { QList::Iterator it(d->action4items.begin()); Q3ActionGroupPrivate::Action4Item *a4i; while (it != d->action4items.end()) { a4i = *it; ++it; if (a4i->widget == w) { a4i->widget->removeAction(a4i->action); d->action4items.removeAll(a4i); delete a4i; } } } return true; } /*! \internal */ void Q3ActionGroup::childToggled(bool b) { if (!isExclusive()) return; Q3Action* s = qobject_cast(sender()); if (!s) return; if (b) { if (s != d->selected) { d->selected = s; for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) { if ((*it)->isToggleAction() && (*it) != s) (*it)->setOn(false); } emit selected(s); } } else { if (s == d->selected) { // at least one has to be selected s->setOn(true); } } } /*! \internal */ void Q3ActionGroup::childActivated() { Q3Action* s = qobject_cast(sender()); if (s) { emit activated(s); emit Q3Action::activated(); } } /*! \internal */ void Q3ActionGroup::childDestroyed() { d->actions.removeAll((Q3Action *)sender()); if (d->selected == sender()) d->selected = 0; } /*! \reimp */ void Q3ActionGroup::setEnabled(bool enable) { if (enable == isEnabled()) return; Q3Action::setEnabled(enable); d->update(this); } /*! \reimp */ void Q3ActionGroup::setToggleAction(bool toggle) { for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) (*it)->setToggleAction(toggle); Q3Action::setToggleAction(true); d->update(this); } /*! \reimp */ void Q3ActionGroup::setOn(bool on) { for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) { Q3Action *act = *it; if (act->isToggleAction()) act->setOn(on); } Q3Action::setOn(on); d->update(this); } /*! \reimp */ void Q3ActionGroup::setVisible(bool visible) { Q3Action::setVisible(visible); d->update(this); } /*! \reimp */ void Q3ActionGroup::setIconSet(const QIcon& icon) { Q3Action::setIconSet(icon); d->update(this); } /*! \reimp */ void Q3ActionGroup::setText(const QString& txt) { if (txt == text()) return; Q3Action::setText(txt); d->update(this); } /*! \reimp */ void Q3ActionGroup::setMenuText(const QString& text) { if (text == menuText()) return; Q3Action::setMenuText(text); d->update(this); } /*! \reimp */ void Q3ActionGroup::setToolTip(const QString& text) { if (text == toolTip()) return; for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) { if ((*it)->toolTip().isNull()) (*it)->setToolTip(text); } Q3Action::setToolTip(text); d->update(this); } /*! \reimp */ void Q3ActionGroup::setWhatsThis(const QString& text) { if (text == whatsThis()) return; for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) { if ((*it)->whatsThis().isNull()) (*it)->setWhatsThis(text); } Q3Action::setWhatsThis(text); d->update(this); } /*! \reimp */ void Q3ActionGroup::childEvent(QChildEvent *e) { if (!e->removed()) return; Q3Action *action = qobject_cast(e->child()); if (!action) return; for (QList::Iterator cb(d->comboboxes.begin()); cb != d->comboboxes.end(); ++cb) { for (int i = 0; i < (*cb)->count(); i++) { if ((*cb)->text(i) == action->text()) { (*cb)->removeItem(i); break; } } } for (QList::Iterator mb(d->menubuttons.begin()); mb != d->menubuttons.end(); ++mb) { QMenu* popup = (*mb)->popup(); if (!popup) continue; action->removeFrom(popup); } for (QList::Iterator mi(d->menuitems.begin()); mi != d->menuitems.end(); ++mi) { Q3PopupMenu* popup = (*mi)->popup; if (!popup) continue; action->removeFrom(popup); } if(QAction *act = Q3ActionGroupPrivate::Action4Item::action) action->removeFrom(act->menu()); } /*! \fn void Q3ActionGroup::selected(Q3Action* action) This signal is emitted from exclusive groups when toggle actions change state. The argument is the \a action whose state changed to "on". \sa setExclusive(), isOn() Q3Action::toggled() */ /*! \fn void Q3ActionGroup::activated(Q3Action* action) This signal is emitted from groups when one of its actions gets activated. The argument is the \a action which was activated. \sa setExclusive(), isOn() Q3Action::toggled() */ /*! \internal */ void Q3ActionGroup::internalComboBoxActivated(int index) { if (index == -1) return; Q3Action *a = 0; for (int i = 0; i <= index && i < (int)d->actions.count(); ++i) { a = d->actions.at(i); if (a && a->objectName() == QLatin1String("qt_separator_action")) index++; } a = d->actions.at(index); if (a) { if (a != d->selected) { d->selected = a; for (QList::Iterator it(d->actions.begin()); it != d->actions.end(); ++it) { if ((*it)->isToggleAction() && (*it) != a) (*it)->setOn(false); } if (a->isToggleAction()) a->setOn(true); emit activated(a); emit Q3Action::activated(); emit a->activated(); if (a->isToggleAction()) emit selected(d->selected); } else if (!a->isToggleAction()) { emit activated(a); emit Q3Action::activated(); emit a->activated(); } a->clearStatusText(); } } /*! \internal */ void Q3ActionGroup::internalComboBoxHighlighted(int index) { Q3Action *a = 0; for (int i = 0; i <= index && i < (int)d->actions.count(); ++i) { a = d->actions.at(i); if (a && a->objectName() == QLatin1String("qt_separator_action")) index++; } a = d->actions.at(index); if (a) a->showStatusText(a->statusTip()); else clearStatusText(); } /*! \internal */ void Q3ActionGroup::internalToggle(Q3Action *a) { int index = d->actions.indexOf(a); if (index == -1) return; int lastItem = index; for (int i=0; iactions.at(i); if (action->objectName() == QLatin1String("qt_separator_action")) --index; } for (QList::Iterator it(d->comboboxes.begin()); it != d->comboboxes.end(); ++it) (*it)->setCurrentItem(index); } /*! \internal */ void Q3ActionGroup::objectDestroyed() { const QObject* obj = sender(); d->menubuttons.removeAll((QToolButton *)obj); for (QList::Iterator mi(d->menuitems.begin()); mi != d->menuitems.end(); ++mi) { if ((*mi)->popup == obj) { d->menuitems.removeAll(*mi); delete *mi; break; } } d->popupmenus.removeAll((Q3PopupMenu*)obj); d->comboboxes.removeAll((QComboBox*)obj); } /*! This function is called from the addTo() function when it has created a widget (\a actionWidget) for the child action \a a in the \a container. */ void Q3ActionGroup::addedTo(QWidget *actionWidget, QWidget *container, Q3Action *a) { Q_UNUSED(actionWidget); Q_UNUSED(container); Q_UNUSED(a); } /*! \overload This function is called from the addTo() function when it has created a menu item for the child action at the index position \a index in the popup menu \a menu. */ void Q3ActionGroup::addedTo(int index, Q3PopupMenu *menu, Q3Action *a) { Q_UNUSED(index); Q_UNUSED(menu); Q_UNUSED(a); } /*! \reimp \overload This function is called from the addTo() function when it has created a widget (\a actionWidget) in the \a container. */ void Q3ActionGroup::addedTo(QWidget *actionWidget, QWidget *container) { Q_UNUSED(actionWidget); Q_UNUSED(container); } /*! \reimp \overload This function is called from the addTo() function when it has created a menu item at the index position \a index in the popup menu \a menu. */ void Q3ActionGroup::addedTo(int index, Q3PopupMenu *menu) { Q_UNUSED(index); Q_UNUSED(menu); } /*! \fn void Q3ActionGroup::insert(Q3Action *action) Use add(\a action) instead. */ QT_END_NAMESPACE #endif