// Copyright (C) 2016 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #include "qtpropertybrowser.h" #include #include #if defined(Q_CC_MSVC) # pragma warning(disable: 4786) /* MS VS 6: truncating debug info after 255 characters */ #endif QT_BEGIN_NAMESPACE class QtPropertyPrivate { public: QtPropertyPrivate(QtAbstractPropertyManager *manager) : m_enabled(true), m_modified(false), m_manager(manager) {} QtProperty *q_ptr; QSet m_parentItems; QList m_subItems; QString m_valueToolTip; QString m_descriptionToolTip; QString m_statusTip; QString m_whatsThis; QString m_name; bool m_enabled; bool m_modified; QtAbstractPropertyManager * const m_manager; }; class QtAbstractPropertyManagerPrivate { QtAbstractPropertyManager *q_ptr; Q_DECLARE_PUBLIC(QtAbstractPropertyManager) public: void propertyDestroyed(QtProperty *property); void propertyChanged(QtProperty *property) const; void propertyRemoved(QtProperty *property, QtProperty *parentProperty) const; void propertyInserted(QtProperty *property, QtProperty *parentProperty, QtProperty *afterProperty) const; QSet m_properties; }; /*! \class QtProperty \internal \inmodule QtDesigner \since 4.4 \brief The QtProperty class encapsulates an instance of a property. Properties are created by objects of QtAbstractPropertyManager subclasses; a manager can create properties of a given type, and is used in conjunction with the QtAbstractPropertyBrowser class. A property is always owned by the manager that created it, which can be retrieved using the propertyManager() function. QtProperty contains the most common property attributes, and provides functions for retrieving as well as setting their values: \table \header \li Getter \li Setter \row \li propertyName() \li setPropertyName() \row \li statusTip() \li setStatusTip() \row \li descriptionToolTip() \li setDescriptionToolTip() \row \li valueToolTip() \li setValueToolTip() \row \li toolTip() \deprecated in 5.6 \li setToolTip() \deprecated in 5.6 \row \li whatsThis() \li setWhatsThis() \row \li isEnabled() \li setEnabled() \row \li isModified() \li setModified() \row \li valueText() \li Nop \row \li valueIcon() \li Nop \endtable It is also possible to nest properties: QtProperty provides the addSubProperty(), insertSubProperty() and removeSubProperty() functions to manipulate the set of subproperties. Use the subProperties() function to retrieve a property's current set of subproperties. Note that nested properties are not owned by the parent property, i.e. each subproperty is owned by the manager that created it. \sa QtAbstractPropertyManager, QtBrowserItem */ /*! Creates a property with the given \a manager. This constructor is only useful when creating a custom QtProperty subclass (e.g. QtVariantProperty). To create a regular QtProperty object, use the QtAbstractPropertyManager::addProperty() function instead. \sa QtAbstractPropertyManager::addProperty() */ QtProperty::QtProperty(QtAbstractPropertyManager *manager) : d_ptr(new QtPropertyPrivate(manager)) { d_ptr->q_ptr = this; } /*! Destroys this property. Note that subproperties are detached but not destroyed, i.e. they can still be used in another context. \sa QtAbstractPropertyManager::clear() */ QtProperty::~QtProperty() { for (QtProperty *property : std::as_const(d_ptr->m_parentItems)) property->d_ptr->m_manager->d_ptr->propertyRemoved(this, property); d_ptr->m_manager->d_ptr->propertyDestroyed(this); for (QtProperty *property : std::as_const(d_ptr->m_subItems)) property->d_ptr->m_parentItems.remove(this); for (QtProperty *property : std::as_const(d_ptr->m_parentItems)) property->d_ptr->m_subItems.removeAll(this); } /*! Returns the set of subproperties. Note that subproperties are not owned by \e this property, but by the manager that created them. \sa insertSubProperty(), removeSubProperty() */ QList QtProperty::subProperties() const { return d_ptr->m_subItems; } /*! Returns a pointer to the manager that owns this property. */ QtAbstractPropertyManager *QtProperty::propertyManager() const { return d_ptr->m_manager; } /* Note: As of 17.7.2015 for Qt 5.6, the existing 'toolTip' of the Property * Browser solution was split into valueToolTip() and descriptionToolTip() * to be able to implement custom tool tip for QTBUG-45442. This could * be back-ported to the solution. */ /*! Returns the property value's tool tip. This is suitable for tool tips over the value (item delegate). \since 5.6 \sa setValueToolTip() */ QString QtProperty::valueToolTip() const { return d_ptr->m_valueToolTip; } /*! Returns the property description's tool tip. This is suitable for tool tips over the description (label). \since 5.6 \sa setDescriptionToolTip() */ QString QtProperty::descriptionToolTip() const { return d_ptr->m_descriptionToolTip; } /*! Returns the property's status tip. \sa setStatusTip() */ QString QtProperty::statusTip() const { return d_ptr->m_statusTip; } /*! Returns the property's "What's This" help text. \sa setWhatsThis() */ QString QtProperty::whatsThis() const { return d_ptr->m_whatsThis; } /*! Returns the property's name. \sa setPropertyName() */ QString QtProperty::propertyName() const { return d_ptr->m_name; } /*! Returns whether the property is enabled. \sa setEnabled() */ bool QtProperty::isEnabled() const { return d_ptr->m_enabled; } /*! Returns whether the property is modified. \sa setModified() */ bool QtProperty::isModified() const { return d_ptr->m_modified; } /*! Returns whether the property has a value. \sa QtAbstractPropertyManager::hasValue() */ bool QtProperty::hasValue() const { return d_ptr->m_manager->hasValue(this); } /*! Returns an icon representing the current state of this property. If the given property type can not generate such an icon, this function returns an invalid icon. \sa QtAbstractPropertyManager::valueIcon() */ QIcon QtProperty::valueIcon() const { return d_ptr->m_manager->valueIcon(this); } /*! Returns a string representing the current state of this property. If the given property type can not generate such a string, this function returns an empty string. \sa QtAbstractPropertyManager::valueText() */ QString QtProperty::valueText() const { return d_ptr->m_manager->valueText(this); } /*! Sets the property value's tool tip to the given \a text. \since 5.6 \sa valueToolTip() */ void QtProperty::setValueToolTip(const QString &text) { if (d_ptr->m_valueToolTip == text) return; d_ptr->m_valueToolTip = text; propertyChanged(); } /*! Sets the property description's tool tip to the given \a text. \since 5.6 \sa descriptionToolTip() */ void QtProperty::setDescriptionToolTip(const QString &text) { if (d_ptr->m_descriptionToolTip == text) return; d_ptr->m_descriptionToolTip = text; propertyChanged(); } /*! Sets the property's status tip to the given \a text. \sa statusTip() */ void QtProperty::setStatusTip(const QString &text) { if (d_ptr->m_statusTip == text) return; d_ptr->m_statusTip = text; propertyChanged(); } /*! Sets the property's "What's This" help text to the given \a text. \sa whatsThis() */ void QtProperty::setWhatsThis(const QString &text) { if (d_ptr->m_whatsThis == text) return; d_ptr->m_whatsThis = text; propertyChanged(); } /*! \fn void QtProperty::setPropertyName(const QString &name) Sets the property's name to the given \a name. \sa propertyName() */ void QtProperty::setPropertyName(const QString &text) { if (d_ptr->m_name == text) return; d_ptr->m_name = text; propertyChanged(); } /*! Enables or disables the property according to the passed \a enable value. \sa isEnabled() */ void QtProperty::setEnabled(bool enable) { if (d_ptr->m_enabled == enable) return; d_ptr->m_enabled = enable; propertyChanged(); } /*! Sets the property's modified state according to the passed \a modified value. \sa isModified() */ void QtProperty::setModified(bool modified) { if (d_ptr->m_modified == modified) return; d_ptr->m_modified = modified; propertyChanged(); } /*! Appends the given \a property to this property's subproperties. If the given \a property already is added, this function does nothing. \sa insertSubProperty(), removeSubProperty() */ void QtProperty::addSubProperty(QtProperty *property) { QtProperty *after = nullptr; if (d_ptr->m_subItems.size() > 0) after = d_ptr->m_subItems.last(); insertSubProperty(property, after); } /*! \fn void QtProperty::insertSubProperty(QtProperty *property, QtProperty *precedingProperty) Inserts the given \a property after the specified \a precedingProperty into this property's list of subproperties. If \a precedingProperty is 0, the specified \a property is inserted at the beginning of the list. If the given \a property already is inserted, this function does nothing. \sa addSubProperty(), removeSubProperty() */ void QtProperty::insertSubProperty(QtProperty *property, QtProperty *afterProperty) { if (!property) return; if (property == this) return; // traverse all children of item. if this item is a child of item then cannot add. auto pendingList = property->subProperties(); QHash visited; while (!pendingList.isEmpty()) { QtProperty *i = pendingList.first(); if (i == this) return; pendingList.removeFirst(); if (visited.contains(i)) continue; visited[i] = true; pendingList += i->subProperties(); } pendingList = subProperties(); int pos = 0; int newPos = 0; QtProperty *properAfterProperty = nullptr; while (pos < pendingList.size()) { QtProperty *i = pendingList.at(pos); if (i == property) return; // if item is already inserted in this item then cannot add. if (i == afterProperty) { newPos = pos + 1; properAfterProperty = afterProperty; } pos++; } d_ptr->m_subItems.insert(newPos, property); property->d_ptr->m_parentItems.insert(this); d_ptr->m_manager->d_ptr->propertyInserted(property, this, properAfterProperty); } /*! Removes the given \a property from the list of subproperties without deleting it. \sa addSubProperty(), insertSubProperty() */ void QtProperty::removeSubProperty(QtProperty *property) { if (!property) return; d_ptr->m_manager->d_ptr->propertyRemoved(property, this); auto pendingList = subProperties(); int pos = 0; while (pos < pendingList.size()) { if (pendingList.at(pos) == property) { d_ptr->m_subItems.removeAt(pos); property->d_ptr->m_parentItems.remove(this); return; } pos++; } } /*! \internal */ void QtProperty::propertyChanged() { d_ptr->m_manager->d_ptr->propertyChanged(this); } //////////////////////////////// void QtAbstractPropertyManagerPrivate::propertyDestroyed(QtProperty *property) { if (m_properties.contains(property)) { emit q_ptr->propertyDestroyed(property); q_ptr->uninitializeProperty(property); m_properties.remove(property); } } void QtAbstractPropertyManagerPrivate::propertyChanged(QtProperty *property) const { emit q_ptr->propertyChanged(property); } void QtAbstractPropertyManagerPrivate::propertyRemoved(QtProperty *property, QtProperty *parentProperty) const { emit q_ptr->propertyRemoved(property, parentProperty); } void QtAbstractPropertyManagerPrivate::propertyInserted(QtProperty *property, QtProperty *parentProperty, QtProperty *afterProperty) const { emit q_ptr->propertyInserted(property, parentProperty, afterProperty); } /*! \class QtAbstractPropertyManager \internal \inmodule QtDesigner \since 4.4 \brief The QtAbstractPropertyManager provides an interface for property managers. A manager can create and manage properties of a given type, and is used in conjunction with the QtAbstractPropertyBrowser class. When using a property browser widget, the properties are created and managed by implementations of the QtAbstractPropertyManager class. To ensure that the properties' values will be displayed using suitable editing widgets, the managers are associated with objects of QtAbstractEditorFactory subclasses. The property browser will use these associations to determine which factories it should use to create the preferred editing widgets. The QtAbstractPropertyManager class provides common functionality like creating a property using the addProperty() function, and retrieving the properties created by the manager using the properties() function. The class also provides signals that are emitted when the manager's properties change: propertyInserted(), propertyRemoved(), propertyChanged() and propertyDestroyed(). QtAbstractPropertyManager subclasses are supposed to provide their own type specific API. Note that several ready-made implementations are available: \list \li QtBoolPropertyManager \li QtColorPropertyManager \li QtDatePropertyManager \li QtDateTimePropertyManager \li QtDoublePropertyManager \li QtEnumPropertyManager \li QtFlagPropertyManager \li QtFontPropertyManager \li QtGroupPropertyManager \li QtIntPropertyManager \li QtPointPropertyManager \li QtRectPropertyManager \li QtSizePropertyManager \li QtSizePolicyPropertyManager \li QtStringPropertyManager \li QtTimePropertyManager \li QtVariantPropertyManager \endlist \sa QtAbstractEditorFactoryBase, QtAbstractPropertyBrowser, QtProperty */ /*! \fn void QtAbstractPropertyManager::propertyInserted(QtProperty *newProperty, QtProperty *parentProperty, QtProperty *precedingProperty) This signal is emitted when a new subproperty is inserted into an existing property, passing pointers to the \a newProperty, \a parentProperty and \a precedingProperty as parameters. If \a precedingProperty is 0, the \a newProperty was inserted at the beginning of the \a parentProperty's subproperties list. Note that signal is emitted only if the \a parentProperty is created by this manager. \sa QtAbstractPropertyBrowser::itemInserted() */ /*! \fn void QtAbstractPropertyManager::propertyChanged(QtProperty *property) This signal is emitted whenever a property's data changes, passing a pointer to the \a property as parameter. Note that signal is only emitted for properties that are created by this manager. \sa QtAbstractPropertyBrowser::itemChanged() */ /*! \fn void QtAbstractPropertyManager::propertyRemoved(QtProperty *property, QtProperty *parent) This signal is emitted when a subproperty is removed, passing pointers to the removed \a property and the \a parent property as parameters. Note that signal is emitted only when the \a parent property is created by this manager. \sa QtAbstractPropertyBrowser::itemRemoved() */ /*! \fn void QtAbstractPropertyManager::propertyDestroyed(QtProperty *property) This signal is emitted when the specified \a property is about to be destroyed. Note that signal is only emitted for properties that are created by this manager. \sa clear(), uninitializeProperty() */ /*! \fn void QtAbstractPropertyBrowser::currentItemChanged(QtBrowserItem *current) This signal is emitted when the current item changes. The current item is specified by \a current. \sa QtAbstractPropertyBrowser::setCurrentItem() */ /*! Creates an abstract property manager with the given \a parent. */ QtAbstractPropertyManager::QtAbstractPropertyManager(QObject *parent) : QObject(parent), d_ptr(new QtAbstractPropertyManagerPrivate) { d_ptr->q_ptr = this; } /*! Destroys the manager. All properties created by the manager are destroyed. */ QtAbstractPropertyManager::~QtAbstractPropertyManager() { clear(); } /*! Destroys all the properties that this manager has created. \sa propertyDestroyed(), uninitializeProperty() */ void QtAbstractPropertyManager::clear() const { while (!d_ptr->m_properties.isEmpty()) delete *d_ptr->m_properties.cbegin(); } /*! Returns the set of properties created by this manager. \sa addProperty() */ QSet QtAbstractPropertyManager::properties() const { return d_ptr->m_properties; } /*! Returns whether the given \a property has a value. The default implementation of this function returns true. \sa QtProperty::hasValue() */ bool QtAbstractPropertyManager::hasValue(const QtProperty *property) const { Q_UNUSED(property); return true; } /*! Returns an icon representing the current state of the given \a property. The default implementation of this function returns an invalid icon. \sa QtProperty::valueIcon() */ QIcon QtAbstractPropertyManager::valueIcon(const QtProperty *property) const { Q_UNUSED(property); return {}; } /*! Returns a string representing the current state of the given \a property. The default implementation of this function returns an empty string. \sa QtProperty::valueText() */ QString QtAbstractPropertyManager::valueText(const QtProperty *property) const { Q_UNUSED(property); return {}; } /*! Creates a property with the given \a name which then is owned by this manager. Internally, this function calls the createProperty() and initializeProperty() functions. \sa initializeProperty(), properties() */ QtProperty *QtAbstractPropertyManager::addProperty(const QString &name) { QtProperty *property = createProperty(); if (property) { property->setPropertyName(name); d_ptr->m_properties.insert(property); initializeProperty(property); } return property; } /*! Creates a property. The base implementation produce QtProperty instances; Reimplement this function to make this manager produce objects of a QtProperty subclass. \sa addProperty(), initializeProperty() */ QtProperty *QtAbstractPropertyManager::createProperty() { return new QtProperty(this); } /*! \fn void QtAbstractPropertyManager::initializeProperty(QtProperty *property) = 0 This function is called whenever a new valid property pointer has been created, passing the pointer as parameter. The purpose is to let the manager know that the \a property has been created so that it can provide additional attributes for the new property, e.g. QtIntPropertyManager adds \l {QtIntPropertyManager::value()}{value}, \l {QtIntPropertyManager::minimum()}{minimum} and \l {QtIntPropertyManager::maximum()}{maximum} attributes. Since each manager subclass adds type specific attributes, this function is pure virtual and must be reimplemented when deriving from the QtAbstractPropertyManager class. \sa addProperty(), createProperty() */ /*! This function is called just before the specified \a property is destroyed. The purpose is to let the property manager know that the \a property is being destroyed so that it can remove the property's additional attributes. \sa clear(), propertyDestroyed() */ void QtAbstractPropertyManager::uninitializeProperty(QtProperty *property) { Q_UNUSED(property); } //////////////////////////////////// /*! \class QtAbstractEditorFactoryBase \internal \inmodule QtDesigner \since 4.4 \brief The QtAbstractEditorFactoryBase provides an interface for editor factories. An editor factory is a class that is able to create an editing widget of a specified type (e.g. line edits or comboboxes) for a given QtProperty object, and it is used in conjunction with the QtAbstractPropertyManager and QtAbstractPropertyBrowser classes. When using a property browser widget, the properties are created and managed by implementations of the QtAbstractPropertyManager class. To ensure that the properties' values will be displayed using suitable editing widgets, the managers are associated with objects of QtAbstractEditorFactory subclasses. The property browser will use these associations to determine which factories it should use to create the preferred editing widgets. Typically, an editor factory is created by subclassing the QtAbstractEditorFactory template class which inherits QtAbstractEditorFactoryBase. But note that several ready-made implementations are available: \list \li QtCheckBoxFactory \li QtDateEditFactory \li QtDateTimeEditFactory \li QtDoubleSpinBoxFactory \li QtEnumEditorFactory \li QtLineEditFactory \li QtScrollBarFactory \li QtSliderFactory \li QtSpinBoxFactory \li QtTimeEditFactory \li QtVariantEditorFactory \endlist \sa QtAbstractPropertyManager, QtAbstractPropertyBrowser */ /*! \fn virtual QWidget *QtAbstractEditorFactoryBase::createEditor(QtProperty *property, QWidget *parent) = 0 Creates an editing widget (with the given \a parent) for the given \a property. This function is reimplemented in QtAbstractEditorFactory template class which also provides a pure virtual convenience overload of this function enabling access to the property's manager. \sa QtAbstractEditorFactory::createEditor() */ /*! \fn QtAbstractEditorFactoryBase::QtAbstractEditorFactoryBase(QObject *parent = 0) Creates an abstract editor factory with the given \a parent. */ /*! \fn virtual void QtAbstractEditorFactoryBase::breakConnection(QtAbstractPropertyManager *manager) = 0 \internal Detaches property manager from factory. This method is reimplemented in QtAbstractEditorFactory template subclass. You don't need to reimplement it in your subclasses. Instead implement more convenient QtAbstractEditorFactory::disconnectPropertyManager() which gives you access to particular manager subclass. */ /*! \fn virtual void QtAbstractEditorFactoryBase::managerDestroyed(QObject *manager) = 0 \internal This method is called when property manager is being destroyed. Basically it notifies factory not to produce editors for properties owned by \a manager. You don't need to reimplement it in your subclass. This method is implemented in QtAbstractEditorFactory template subclass. */ /*! \class QtAbstractEditorFactory \internal \inmodule QtDesigner \since 4.4 \brief The QtAbstractEditorFactory is the base template class for editor factories. An editor factory is a class that is able to create an editing widget of a specified type (e.g. line edits or comboboxes) for a given QtProperty object, and it is used in conjunction with the QtAbstractPropertyManager and QtAbstractPropertyBrowser classes. Note that the QtAbstractEditorFactory functions are using the PropertyManager template argument class which can be any QtAbstractPropertyManager subclass. For example: \snippet doc/src/snippets/code/tools_shared_qtpropertybrowser_qtpropertybrowser.cpp 0 Note that QtSpinBoxFactory by definition creates editing widgets \e only for properties created by QtIntPropertyManager. When using a property browser widget, the properties are created and managed by implementations of the QtAbstractPropertyManager class. To ensure that the properties' values will be displayed using suitable editing widgets, the managers are associated with objects of QtAbstractEditorFactory subclasses. The property browser will use these associations to determine which factories it should use to create the preferred editing widgets. A QtAbstractEditorFactory object is capable of producing editors for several property managers at the same time. To create an association between this factory and a given manager, use the addPropertyManager() function. Use the removePropertyManager() function to make this factory stop producing editors for a given property manager. Use the propertyManagers() function to retrieve the set of managers currently associated with this factory. Several ready-made implementations of the QtAbstractEditorFactory class are available: \list \li QtCheckBoxFactory \li QtDateEditFactory \li QtDateTimeEditFactory \li QtDoubleSpinBoxFactory \li QtEnumEditorFactory \li QtLineEditFactory \li QtScrollBarFactory \li QtSliderFactory \li QtSpinBoxFactory \li QtTimeEditFactory \li QtVariantEditorFactory \endlist When deriving from the QtAbstractEditorFactory class, several pure virtual functions must be implemented: the connectPropertyManager() function is used by the factory to connect to the given manager's signals, the createEditor() function is supposed to create an editor for the given property controlled by the given manager, and finally the disconnectPropertyManager() function is used by the factory to disconnect from the specified manager's signals. \sa QtAbstractEditorFactoryBase, QtAbstractPropertyManager */ /*! \fn QtAbstractEditorFactory::QtAbstractEditorFactory(QObject *parent = 0) Creates an editor factory with the given \a parent. \sa addPropertyManager() */ /*! \fn QWidget *QtAbstractEditorFactory::createEditor(QtProperty *property, QWidget *parent) Creates an editing widget (with the given \a parent) for the given \a property. */ /*! \fn void QtAbstractEditorFactory::addPropertyManager(PropertyManager *manager) Adds the given \a manager to this factory's set of managers, making this factory produce editing widgets for properties created by the given manager. The PropertyManager type is a template argument class, and represents the chosen QtAbstractPropertyManager subclass. \sa propertyManagers(), removePropertyManager() */ /*! \fn void QtAbstractEditorFactory::removePropertyManager(PropertyManager *manager) Removes the given \a manager from this factory's set of managers. The PropertyManager type is a template argument class, and may be any QtAbstractPropertyManager subclass. \sa propertyManagers(), addPropertyManager() */ /*! \fn virtual void QtAbstractEditorFactory::connectPropertyManager(PropertyManager *manager) = 0 Connects this factory to the given \a manager's signals. The PropertyManager type is a template argument class, and represents the chosen QtAbstractPropertyManager subclass. This function is used internally by the addPropertyManager() function, and makes it possible to update an editing widget when the associated property's data changes. This is typically done in custom slots responding to the signals emitted by the property's manager, e.g. QtIntPropertyManager::valueChanged() and QtIntPropertyManager::rangeChanged(). \sa propertyManagers(), disconnectPropertyManager() */ /*! \fn virtual QWidget *QtAbstractEditorFactory::createEditor(PropertyManager *manager, QtProperty *property, QWidget *parent) = 0 Creates an editing widget with the given \a parent for the specified \a property created by the given \a manager. The PropertyManager type is a template argument class, and represents the chosen QtAbstractPropertyManager subclass. This function must be implemented in derived classes: It is recommended to store a pointer to the widget and map it to the given \a property, since the widget must be updated whenever the associated property's data changes. This is typically done in custom slots responding to the signals emitted by the property's manager, e.g. QtIntPropertyManager::valueChanged() and QtIntPropertyManager::rangeChanged(). \sa connectPropertyManager() */ /*! \fn virtual void QtAbstractEditorFactory::disconnectPropertyManager(PropertyManager *manager) = 0 Disconnects this factory from the given \a manager's signals. The PropertyManager type is a template argument class, and represents the chosen QtAbstractPropertyManager subclass. This function is used internally by the removePropertyManager() function. \sa propertyManagers(), connectPropertyManager() */ /*! \fn QSet QtAbstractEditorFactory::propertyManagers() const Returns the factory's set of associated managers. The PropertyManager type is a template argument class, and represents the chosen QtAbstractPropertyManager subclass. \sa addPropertyManager(), removePropertyManager() */ /*! \fn PropertyManager *QtAbstractEditorFactory::propertyManager(QtProperty *property) const Returns the property manager for the given \a property, or 0 if the given \a property doesn't belong to any of this factory's registered managers. The PropertyManager type is a template argument class, and represents the chosen QtAbstractPropertyManager subclass. \sa propertyManagers() */ /*! \fn virtual void QtAbstractEditorFactory::managerDestroyed(QObject *manager) \internal */ //////////////////////////////////// class QtBrowserItemPrivate { public: QtBrowserItemPrivate(QtAbstractPropertyBrowser *browser, QtProperty *property, QtBrowserItem *parent) : m_browser(browser), m_property(property), m_parent(parent), q_ptr(0) {} void addChild(QtBrowserItem *index, QtBrowserItem *after); void removeChild(QtBrowserItem *index); QtAbstractPropertyBrowser * const m_browser; QtProperty *m_property; QtBrowserItem *m_parent; QtBrowserItem *q_ptr; QList m_children; }; void QtBrowserItemPrivate::addChild(QtBrowserItem *index, QtBrowserItem *after) { if (m_children.contains(index)) return; int idx = m_children.indexOf(after) + 1; // we insert after returned idx, if it was -1 then we set idx to 0; m_children.insert(idx, index); } void QtBrowserItemPrivate::removeChild(QtBrowserItem *index) { m_children.removeAll(index); } /*! \class QtBrowserItem \internal \inmodule QtDesigner \since 4.4 \brief The QtBrowserItem class represents a property in a property browser instance. Browser items are created whenever a QtProperty is inserted to the property browser. A QtBrowserItem uniquely identifies a browser's item. Thus, if the same QtProperty is inserted multiple times, each occurrence gets its own unique QtBrowserItem. The items are owned by QtAbstractPropertyBrowser and automatically deleted when they are removed from the browser. You can traverse a browser's properties by calling parent() and children(). The property and the browser associated with an item are available as property() and browser(). \sa QtAbstractPropertyBrowser, QtProperty */ /*! Returns the property which is accosiated with this item. Note that several items can be associated with the same property instance in the same property browser. \sa QtAbstractPropertyBrowser::items() */ QtProperty *QtBrowserItem::property() const { return d_ptr->m_property; } /*! Returns the parent item of \e this item. Returns 0 if \e this item is associated with top-level property in item's property browser. \sa children() */ QtBrowserItem *QtBrowserItem::parent() const { return d_ptr->m_parent; } /*! Returns the children items of \e this item. The properties reproduced from children items are always the same as reproduced from associated property' children, for example: \snippet doc/src/snippets/code/tools_shared_qtpropertybrowser_qtpropertybrowser.cpp 1 The \e childrenItems list represents the same list as \e childrenProperties. */ QList QtBrowserItem::children() const { return d_ptr->m_children; } /*! Returns the property browser which owns \e this item. */ QtAbstractPropertyBrowser *QtBrowserItem::browser() const { return d_ptr->m_browser; } QtBrowserItem::QtBrowserItem(QtAbstractPropertyBrowser *browser, QtProperty *property, QtBrowserItem *parent) : d_ptr(new QtBrowserItemPrivate(browser, property, parent)) { d_ptr->q_ptr = this; } QtBrowserItem::~QtBrowserItem() { } //////////////////////////////////// using Map1 = QHash>; using Map2 = QHash>>; Q_GLOBAL_STATIC(Map1, m_viewToManagerToFactory) Q_GLOBAL_STATIC(Map2, m_managerToFactoryToViews) class QtAbstractPropertyBrowserPrivate { QtAbstractPropertyBrowser *q_ptr; Q_DECLARE_PUBLIC(QtAbstractPropertyBrowser) public: QtAbstractPropertyBrowserPrivate(); void insertSubTree(QtProperty *property, QtProperty *parentProperty); void removeSubTree(QtProperty *property, QtProperty *parentProperty); void createBrowserIndexes(QtProperty *property, QtProperty *parentProperty, QtProperty *afterProperty); void removeBrowserIndexes(QtProperty *property, QtProperty *parentProperty); QtBrowserItem *createBrowserIndex(QtProperty *property, QtBrowserItem *parentIndex, QtBrowserItem *afterIndex); void removeBrowserIndex(QtBrowserItem *index); void clearIndex(QtBrowserItem *index); void slotPropertyInserted(QtProperty *property, QtProperty *parentProperty, QtProperty *afterProperty); void slotPropertyRemoved(QtProperty *property, QtProperty *parentProperty); void slotPropertyDestroyed(QtProperty *property); void slotPropertyDataChanged(QtProperty *property); QList m_subItems; QHash > m_managerToProperties; QHash > m_propertyToParents; QHash m_topLevelPropertyToIndex; QList m_topLevelIndexes; QHash > m_propertyToIndexes; QtBrowserItem *m_currentItem; }; QtAbstractPropertyBrowserPrivate::QtAbstractPropertyBrowserPrivate() : m_currentItem(0) { } void QtAbstractPropertyBrowserPrivate::insertSubTree(QtProperty *property, QtProperty *parentProperty) { if (m_propertyToParents.contains(property)) { // property was already inserted, so its manager is connected // and all its children are inserted and theirs managers are connected // we just register new parent (parent has to be new). m_propertyToParents[property].append(parentProperty); // don't need to update m_managerToProperties map since // m_managerToProperties[manager] already contains property. return; } QtAbstractPropertyManager *manager = property->propertyManager(); if (m_managerToProperties[manager].isEmpty()) { // connect manager's signals q_ptr->connect(manager, &QtAbstractPropertyManager::propertyInserted, q_ptr, [this](QtProperty *property, QtProperty *parent, QtProperty *after) { slotPropertyInserted(property, parent, after); }); q_ptr->connect(manager, &QtAbstractPropertyManager::propertyRemoved, q_ptr, [this](QtProperty *property, QtProperty *parent) { slotPropertyRemoved(property, parent); }); q_ptr->connect(manager, &QtAbstractPropertyManager::propertyDestroyed, q_ptr, [this](QtProperty *property) { slotPropertyDestroyed(property); }); q_ptr->connect(manager, &QtAbstractPropertyManager::propertyChanged, q_ptr, [this](QtProperty *property) { slotPropertyDataChanged(property); }); } m_managerToProperties[manager].append(property); m_propertyToParents[property].append(parentProperty); const auto subList = property->subProperties(); for (QtProperty *subProperty : subList) insertSubTree(subProperty, property); } void QtAbstractPropertyBrowserPrivate::removeSubTree(QtProperty *property, QtProperty *parentProperty) { if (!m_propertyToParents.contains(property)) { // ASSERT return; } m_propertyToParents[property].removeAll(parentProperty); if (!m_propertyToParents[property].isEmpty()) return; m_propertyToParents.remove(property); QtAbstractPropertyManager *manager = property->propertyManager(); m_managerToProperties[manager].removeAll(property); if (m_managerToProperties[manager].isEmpty()) { // disconnect manager's signals q_ptr->disconnect(manager, &QtAbstractPropertyManager::propertyInserted, q_ptr, nullptr); q_ptr->disconnect(manager, &QtAbstractPropertyManager::propertyRemoved, q_ptr, nullptr); q_ptr->disconnect(manager, &QtAbstractPropertyManager::propertyDestroyed, q_ptr, nullptr); q_ptr->disconnect(manager, &QtAbstractPropertyManager::propertyChanged, q_ptr, nullptr); m_managerToProperties.remove(manager); } const auto subList = property->subProperties(); for (QtProperty *subProperty : subList) removeSubTree(subProperty, property); } void QtAbstractPropertyBrowserPrivate::createBrowserIndexes(QtProperty *property, QtProperty *parentProperty, QtProperty *afterProperty) { QHash parentToAfter; if (afterProperty) { const auto it = m_propertyToIndexes.constFind(afterProperty); if (it == m_propertyToIndexes.constEnd()) return; for (QtBrowserItem *idx : it.value()) { QtBrowserItem *parentIdx = idx->parent(); if ((parentProperty && parentIdx && parentIdx->property() == parentProperty) || (!parentProperty && !parentIdx)) parentToAfter[idx->parent()] = idx; } } else if (parentProperty) { const auto it = m_propertyToIndexes.find(parentProperty); if (it == m_propertyToIndexes.constEnd()) return; for (QtBrowserItem *idx : it.value()) parentToAfter[idx] = nullptr; } else { parentToAfter[nullptr] = nullptr; } for (auto it = parentToAfter.cbegin(), pcend = parentToAfter.cend(); it != pcend; ++it) createBrowserIndex(property, it.key(), it.value()); } QtBrowserItem *QtAbstractPropertyBrowserPrivate::createBrowserIndex(QtProperty *property, QtBrowserItem *parentIndex, QtBrowserItem *afterIndex) { auto *newIndex = new QtBrowserItem(q_ptr, property, parentIndex); if (parentIndex) { parentIndex->d_ptr->addChild(newIndex, afterIndex); } else { m_topLevelPropertyToIndex[property] = newIndex; m_topLevelIndexes.insert(m_topLevelIndexes.indexOf(afterIndex) + 1, newIndex); } m_propertyToIndexes[property].append(newIndex); q_ptr->itemInserted(newIndex, afterIndex); const auto subItems = property->subProperties(); QtBrowserItem *afterChild = nullptr; for (QtProperty *child : subItems) afterChild = createBrowserIndex(child, newIndex, afterChild); return newIndex; } void QtAbstractPropertyBrowserPrivate::removeBrowserIndexes(QtProperty *property, QtProperty *parentProperty) { QList toRemove; const auto it = m_propertyToIndexes.constFind(property); if (it == m_propertyToIndexes.constEnd()) return; for (QtBrowserItem *idx : it.value()) { QtBrowserItem *parentIdx = idx->parent(); if ((parentProperty && parentIdx && parentIdx->property() == parentProperty) || (!parentProperty && !parentIdx)) toRemove.append(idx); } for (QtBrowserItem *index : std::as_const(toRemove)) removeBrowserIndex(index); } void QtAbstractPropertyBrowserPrivate::removeBrowserIndex(QtBrowserItem *index) { const auto children = index->children(); for (int i = children.size(); i > 0; i--) { removeBrowserIndex(children.at(i - 1)); } q_ptr->itemRemoved(index); if (index->parent()) { index->parent()->d_ptr->removeChild(index); } else { m_topLevelPropertyToIndex.remove(index->property()); m_topLevelIndexes.removeAll(index); } QtProperty *property = index->property(); m_propertyToIndexes[property].removeAll(index); if (m_propertyToIndexes[property].isEmpty()) m_propertyToIndexes.remove(property); delete index; } void QtAbstractPropertyBrowserPrivate::clearIndex(QtBrowserItem *index) { const auto children = index->children(); for (QtBrowserItem *item : children) clearIndex(item); delete index; } void QtAbstractPropertyBrowserPrivate::slotPropertyInserted(QtProperty *property, QtProperty *parentProperty, QtProperty *afterProperty) { if (!m_propertyToParents.contains(parentProperty)) return; createBrowserIndexes(property, parentProperty, afterProperty); insertSubTree(property, parentProperty); //q_ptr->propertyInserted(property, parentProperty, afterProperty); } void QtAbstractPropertyBrowserPrivate::slotPropertyRemoved(QtProperty *property, QtProperty *parentProperty) { if (!m_propertyToParents.contains(parentProperty)) return; removeSubTree(property, parentProperty); // this line should be probably moved down after propertyRemoved call //q_ptr->propertyRemoved(property, parentProperty); removeBrowserIndexes(property, parentProperty); } void QtAbstractPropertyBrowserPrivate::slotPropertyDestroyed(QtProperty *property) { if (!m_subItems.contains(property)) return; q_ptr->removeProperty(property); } void QtAbstractPropertyBrowserPrivate::slotPropertyDataChanged(QtProperty *property) { if (!m_propertyToParents.contains(property)) return; const auto it = m_propertyToIndexes.constFind(property); if (it == m_propertyToIndexes.constEnd()) return; const auto indexes = it.value(); for (QtBrowserItem *idx : indexes) q_ptr->itemChanged(idx); //q_ptr->propertyChanged(property); } /*! \class QtAbstractPropertyBrowser \internal \inmodule QtDesigner \since 4.4 \brief QtAbstractPropertyBrowser provides a base class for implementing property browsers. A property browser is a widget that enables the user to edit a given set of properties. Each property is represented by a label specifying the property's name, and an editing widget (e.g. a line edit or a combobox) holding its value. A property can have zero or more subproperties. \image qtpropertybrowser.png The top level properties can be retrieved using the properties() function. To traverse each property's subproperties, use the QtProperty::subProperties() function. In addition, the set of top level properties can be manipulated using the addProperty(), insertProperty() and removeProperty() functions. Note that the QtProperty class provides a corresponding set of functions making it possible to manipulate the set of subproperties as well. To remove all the properties from the property browser widget, use the clear() function. This function will clear the editor, but it will not delete the properties since they can still be used in other editors. The properties themselves are created and managed by implementations of the QtAbstractPropertyManager class. A manager can handle (i.e. create and manage) properties of a given type. In the property browser the managers are associated with implementations of the QtAbstractEditorFactory: A factory is a class able to create an editing widget of a specified type. When using a property browser widget, managers must be created for each of the required property types before the properties themselves can be created. To ensure that the properties' values will be displayed using suitable editing widgets, the managers must be associated with objects of the preferred factory implementations using the setFactoryForManager() function. The property browser will use these associations to determine which factory it should use to create the preferred editing widget. Note that a factory can be associated with many managers, but a manager can only be associated with one single factory within the context of a single property browser. The associations between managers and factories can at any time be removed using the unsetFactoryForManager() function. Whenever the property data changes or a property is inserted or removed, the itemChanged(), itemInserted() or itemRemoved() functions are called, respectively. These functions must be reimplemented in derived classes in order to update the property browser widget. Be aware that some property instances can appear several times in an abstract tree structure. For example: \table 100% \row \li \snippet doc/src/snippets/code/tools_shared_qtpropertybrowser_qtpropertybrowser.cpp 2 \li \image qtpropertybrowser-duplicate.png \endtable The addProperty() function returns a QtBrowserItem that uniquely identifies the created item. To make a property editable in the property browser, the createEditor() function must be called to provide the property with a suitable editing widget. Note that there are two ready-made property browser implementations: \list \li QtGroupBoxPropertyBrowser \li QtTreePropertyBrowser \endlist \sa QtAbstractPropertyManager, QtAbstractEditorFactoryBase */ /*! \fn void QtAbstractPropertyBrowser::setFactoryForManager(PropertyManager *manager, QtAbstractEditorFactory *factory) Connects the given \a manager to the given \a factory, ensuring that properties of the \a manager's type will be displayed with an editing widget suitable for their value. For example: \snippet doc/src/snippets/code/tools_shared_qtpropertybrowser_qtpropertybrowser.cpp 3 In this example the \c myInteger property's value is displayed with a QSpinBox widget, while the \c myDouble property's value is displayed with a QDoubleSpinBox widget. Note that a factory can be associated with many managers, but a manager can only be associated with one single factory. If the given \a manager already is associated with another factory, the old association is broken before the new one established. This function ensures that the given \a manager and the given \a factory are compatible, and it automatically calls the QtAbstractEditorFactory::addPropertyManager() function if necessary. \sa unsetFactoryForManager() */ /*! \fn virtual void QtAbstractPropertyBrowser::itemInserted(QtBrowserItem *insertedItem, QtBrowserItem *precedingItem) = 0 This function is called to update the widget whenever a property is inserted or added to the property browser, passing pointers to the \a insertedItem of property and the specified \a precedingItem as parameters. If \a precedingItem is 0, the \a insertedItem was put at the beginning of its parent item's list of subproperties. If the parent of \a insertedItem is 0, the \a insertedItem was added as a top level property of \e this property browser. This function must be reimplemented in derived classes. Note that if the \a insertedItem's property has subproperties, this method will be called for those properties as soon as the current call is finished. \sa insertProperty(), addProperty() */ /*! \fn virtual void QtAbstractPropertyBrowser::itemRemoved(QtBrowserItem *item) = 0 This function is called to update the widget whenever a property is removed from the property browser, passing the pointer to the \a item of the property as parameters. The passed \a item is deleted just after this call is finished. If the parent of \a item is 0, the removed \a item was a top level property in this editor. This function must be reimplemented in derived classes. Note that if the removed \a item's property has subproperties, this method will be called for those properties just before the current call is started. \sa removeProperty() */ /*! \fn virtual void QtAbstractPropertyBrowser::itemChanged(QtBrowserItem *item) = 0 This function is called whenever a property's data changes, passing a pointer to the \a item of property as parameter. This function must be reimplemented in derived classes in order to update the property browser widget whenever a property's name, tool tip, status tip, "what's this" text, value text or value icon changes. Note that if the property browser contains several occurrences of the same property, this method will be called once for each occurrence (with a different item each time). \sa QtProperty, items() */ /*! Creates an abstract property browser with the given \a parent. */ QtAbstractPropertyBrowser::QtAbstractPropertyBrowser(QWidget *parent) : QWidget(parent), d_ptr(new QtAbstractPropertyBrowserPrivate) { d_ptr->q_ptr = this; } /*! Destroys the property browser, and destroys all the items that were created by this property browser. Note that the properties that were displayed in the editor are not deleted since they still can be used in other editors. Neither does the destructor delete the property managers and editor factories that were used by this property browser widget unless this widget was their parent. \sa QtAbstractPropertyManager::~QtAbstractPropertyManager() */ QtAbstractPropertyBrowser::~QtAbstractPropertyBrowser() { const auto indexes = topLevelItems(); for (QtBrowserItem *item : indexes) d_ptr->clearIndex(item); } /*! Returns the property browser's list of top level properties. To traverse the subproperties, use the QtProperty::subProperties() function. \sa addProperty(), insertProperty(), removeProperty() */ QList QtAbstractPropertyBrowser::properties() const { return d_ptr->m_subItems; } /*! Returns the property browser's list of all items associated with the given \a property. There is one item per instance of the property in the browser. \sa topLevelItem() */ QList QtAbstractPropertyBrowser::items(QtProperty *property) const { return d_ptr->m_propertyToIndexes.value(property); } /*! Returns the top-level items associated with the given \a property. Returns 0 if \a property wasn't inserted into this property browser or isn't a top-level one. \sa topLevelItems(), items() */ QtBrowserItem *QtAbstractPropertyBrowser::topLevelItem(QtProperty *property) const { return d_ptr->m_topLevelPropertyToIndex.value(property); } /*! Returns the list of top-level items. \sa topLevelItem() */ QList QtAbstractPropertyBrowser::topLevelItems() const { return d_ptr->m_topLevelIndexes; } /*! Removes all the properties from the editor, but does not delete them since they can still be used in other editors. \sa removeProperty(), QtAbstractPropertyManager::clear() */ void QtAbstractPropertyBrowser::clear() { const auto subList = properties(); for (auto rit = subList.crbegin(), rend = subList.crend(); rit != rend; ++rit) removeProperty(*rit); } /*! Appends the given \a property (and its subproperties) to the property browser's list of top level properties. Returns the item created by property browser which is associated with the \a property. In order to get all children items created by the property browser in this call, the returned item should be traversed. If the specified \a property is already added, this function does nothing and returns 0. \sa insertProperty(), QtProperty::addSubProperty(), properties() */ QtBrowserItem *QtAbstractPropertyBrowser::addProperty(QtProperty *property) { QtProperty *afterProperty = nullptr; if (d_ptr->m_subItems.size() > 0) afterProperty = d_ptr->m_subItems.last(); return insertProperty(property, afterProperty); } /*! \fn QtBrowserItem *QtAbstractPropertyBrowser::insertProperty(QtProperty *property, QtProperty *afterProperty) Inserts the given \a property (and its subproperties) after the specified \a afterProperty in the browser's list of top level properties. Returns item created by property browser which is associated with the \a property. In order to get all children items created by the property browser in this call returned item should be traversed. If the specified \a afterProperty is 0, the given \a property is inserted at the beginning of the list. If \a property is already inserted, this function does nothing and returns 0. \sa addProperty(), QtProperty::insertSubProperty(), properties() */ QtBrowserItem *QtAbstractPropertyBrowser::insertProperty(QtProperty *property, QtProperty *afterProperty) { if (!property) return nullptr; // if item is already inserted in this item then cannot add. auto pendingList = properties(); int pos = 0; int newPos = 0; while (pos < pendingList.size()) { QtProperty *prop = pendingList.at(pos); if (prop == property) return nullptr; if (prop == afterProperty) { newPos = pos + 1; } pos++; } d_ptr->createBrowserIndexes(property, 0, afterProperty); // traverse inserted subtree and connect to manager's signals d_ptr->insertSubTree(property, 0); d_ptr->m_subItems.insert(newPos, property); //propertyInserted(property, 0, properAfterProperty); return topLevelItem(property); } /*! Removes the specified \a property (and its subproperties) from the property browser's list of top level properties. All items that were associated with the given \a property and its children are deleted. Note that the properties are \e not deleted since they can still be used in other editors. \sa clear(), QtProperty::removeSubProperty(), properties() */ void QtAbstractPropertyBrowser::removeProperty(QtProperty *property) { if (!property) return; auto pendingList = properties(); int pos = 0; while (pos < pendingList.size()) { if (pendingList.at(pos) == property) { d_ptr->m_subItems.removeAt(pos); //perhaps this two lines d_ptr->removeSubTree(property, 0); //should be moved down after propertyRemoved call. //propertyRemoved(property, 0); d_ptr->removeBrowserIndexes(property, 0); // when item is deleted, item will call removeItem for top level items, // and itemRemoved for nested items. return; } pos++; } } /*! Creates an editing widget (with the given \a parent) for the given \a property according to the previously established associations between property managers and editor factories. If the property is created by a property manager which was not associated with any of the existing factories in \e this property editor, the function returns 0. To make a property editable in the property browser, the createEditor() function must be called to provide the property with a suitable editing widget. Reimplement this function to provide additional decoration for the editing widgets created by the installed factories. \sa setFactoryForManager() */ QWidget *QtAbstractPropertyBrowser::createEditor(QtProperty *property, QWidget *parent) { QtAbstractEditorFactoryBase *factory = nullptr; QtAbstractPropertyManager *manager = property->propertyManager(); if (m_viewToManagerToFactory()->contains(this) && (*m_viewToManagerToFactory())[this].contains(manager)) { factory = (*m_viewToManagerToFactory())[this][manager]; } if (!factory) return nullptr; QWidget *w = factory->createEditor(property, parent); // Since some editors can be QComboBoxes, and we changed their focus policy in Qt 5 // to make them feel more native on Mac, we need to relax the focus policy to something // more permissive to keep the combo box from losing focus, allowing it to stay alive, // when the user clicks on it to show the popup. if (w) w->setFocusPolicy(Qt::WheelFocus); return w; } bool QtAbstractPropertyBrowser::addFactory(QtAbstractPropertyManager *abstractManager, QtAbstractEditorFactoryBase *abstractFactory) { bool connectNeeded = false; if (!m_managerToFactoryToViews()->contains(abstractManager) || !(*m_managerToFactoryToViews())[abstractManager].contains(abstractFactory)) { connectNeeded = true; } else if ((*m_managerToFactoryToViews())[abstractManager][abstractFactory] .contains(this)) { return connectNeeded; } if (m_viewToManagerToFactory()->contains(this) && (*m_viewToManagerToFactory())[this].contains(abstractManager)) { unsetFactoryForManager(abstractManager); } (*m_managerToFactoryToViews())[abstractManager][abstractFactory].append(this); (*m_viewToManagerToFactory())[this][abstractManager] = abstractFactory; return connectNeeded; } /*! Removes the association between the given \a manager and the factory bound to it, automatically calling the QtAbstractEditorFactory::removePropertyManager() function if necessary. \sa setFactoryForManager() */ void QtAbstractPropertyBrowser::unsetFactoryForManager(QtAbstractPropertyManager *manager) { if (!m_viewToManagerToFactory()->contains(this) || !(*m_viewToManagerToFactory())[this].contains(manager)) { return; } QtAbstractEditorFactoryBase *abstractFactory = (*m_viewToManagerToFactory())[this][manager]; (*m_viewToManagerToFactory())[this].remove(manager); if ((*m_viewToManagerToFactory())[this].isEmpty()) { (*m_viewToManagerToFactory()).remove(this); } (*m_managerToFactoryToViews())[manager][abstractFactory].removeAll(this); if ((*m_managerToFactoryToViews())[manager][abstractFactory].isEmpty()) { (*m_managerToFactoryToViews())[manager].remove(abstractFactory); abstractFactory->breakConnection(manager); if ((*m_managerToFactoryToViews())[manager].isEmpty()) { (*m_managerToFactoryToViews()).remove(manager); } } } /*! Returns the current item in the property browser. \sa setCurrentItem() */ QtBrowserItem *QtAbstractPropertyBrowser::currentItem() const { return d_ptr->m_currentItem; } /*! Sets the current item in the property browser to \a item. \sa currentItem(), currentItemChanged() */ void QtAbstractPropertyBrowser::setCurrentItem(QtBrowserItem *item) { QtBrowserItem *oldItem = d_ptr->m_currentItem; d_ptr->m_currentItem = item; if (oldItem != item) emit currentItemChanged(item); } QT_END_NAMESPACE #include "moc_qtpropertybrowser.cpp"