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-/****************************************************************************
-**
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the either Technology Preview License Agreement or the
-** Beta Release License Agreement.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, 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.
-**
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at http://qt.nokia.com/contact.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
- \class QDesignerMemberSheetExtension
-
- \brief The QDesignerMemberSheetExtension class allows you to
- manipulate a widget's member functions which is displayed when
- configuring connections using Qt Designer's mode for editing
- signals and slots.
-
- \inmodule QtDesigner
-
- QDesignerMemberSheetExtension is a collection of functions that is
- typically used to query a widget's member functions, and to
- manipulate the member functions' appearance in \QD's signals and
- slots editing mode. For example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 2
-
- When implementing a custom widget plugin, a pointer to \QD's
- current QDesignerFormEditorInterface object (\c formEditor in the
- example above) is provided by the
- QDesignerCustomWidgetInterface::initialize() function's parameter.
-
- The member sheet (and any other extension), can be retrieved by
- querying \QD's extension manager using the qt_extension()
- function. When you want to release the extension, you only need to
- delete the pointer.
-
- All widgets have a default member sheet used in \QD's signals and
- slots editing mode with the widget's member functions. But
- QDesignerMemberSheetExtension also provides an interface for
- creating custom member sheet extensions.
-
- \warning \QD uses the QDesignerMemberSheetExtension to facilitate
- the signal and slot editing mode. Whenever a connection between
- two widgets is requested, \QD will query for the widgets' member
- sheet extensions. If a widget has an implemented member sheet
- extension, this extension will override the default member sheet.
-
- To create a member sheet extension, your extension class must
- inherit from both QObject and QDesignerMemberSheetExtension. Then,
- since we are implementing an interface, we must ensure that it's
- made known to the meta object system using the Q_INTERFACES()
- macro:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 3
-
- This enables \QD to use qobject_cast() to query for
- supported interfaces using nothing but a QObject pointer.
-
- In \QD the extensions are not created until they are
- required. For that reason, when implementing a member sheet
- extension, you must also create a QExtensionFactory, i.e a class
- that is able to make an instance of your extension, and register
- it using \QD's \l {QExtensionManager}{extension manager}.
-
- When a widget's member sheet extension is required, \QD's \l
- {QExtensionManager}{extension manager} will run through all its
- registered factories calling QExtensionFactory::createExtension()
- for each until the first one that is able to create a member sheet
- extension for that widget, is found. This factory will then make
- an instance of the extension. If no such factory is found, \QD
- will use the default member sheet.
-
- There are four available types of extensions in \QD:
- QDesignerContainerExtension, QDesignerMemberSheetExtension,
- QDesignerPropertySheetExtension and
- QDesignerTaskMenuExtension. \QD's behavior is the same whether the
- requested extension is associated with a multi page container, a
- member sheet, a property sheet or a task menu.
-
- The QExtensionFactory class provides a standard extension
- factory, and can also be used as an interface for custom
- extension factories. You can either create a new
- QExtensionFactory and reimplement the
- QExtensionFactory::createExtension() function. For example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 4
-
- Or you can use an existing factory, expanding the
- QExtensionFactory::createExtension() function to make the factory
- able to create a member sheet extension as well. For example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 5
-
- For a complete example using an extension class, see \l
- {designer/taskmenuextension}{Task Menu Extension example}. The
- example shows how to create a custom widget plugin for Qt
- Designer, and how to to use the QDesignerTaskMenuExtension class
- to add custom items to \QD's task menu.
-
- \sa QExtensionFactory, QExtensionManager, {Creating Custom Widget
- Extensions}
-*/
-
-/*!
- \fn QDesignerMemberSheetExtension::~QDesignerMemberSheetExtension()
-
- Destroys the member sheet extension.
-*/
-
-/*!
- \fn int QDesignerMemberSheetExtension::count() const
-
- Returns the extension's number of member functions.
-*/
-
-/*!
- \fn int QDesignerMemberSheetExtension::indexOf(const QString &name) const
-
- Returns the index of the member function specified by the given \a
- name.
-
- \sa memberName()
-*/
-
-/*!
- \fn QString QDesignerMemberSheetExtension::memberName(int index) const
-
- Returns the name of the member function with the given \a index.
-
- \sa indexOf()
-*/
-
-/*!
- \fn QString QDesignerMemberSheetExtension::memberGroup(int index) const
-
- Returns the name of the member group specified for the function
- with the given \a index.
-
- \sa indexOf(), setMemberGroup()
-*/
-
-/*!
- \fn void QDesignerMemberSheetExtension::setMemberGroup(int index, const QString &group)
-
- Sets the member group of the member function with the given \a
- index, to \a group.
-
- \sa indexOf(), memberGroup()
-*/
-
-/*!
- \fn bool QDesignerMemberSheetExtension::isVisible(int index) const
-
- Returns true if the member function with the given \a index is
- visible in \QD's signal and slot editor, otherwise false.
-
- \sa indexOf(), setVisible()
-*/
-
-/*!
- \fn void QDesignerMemberSheetExtension::setVisible(int index, bool visible)
-
- If \a visible is true, the member function with the given \a index
- is visible in \QD's signals and slots editing mode; otherwise the
- member function is hidden.
-
- \sa indexOf(), isVisible()
-*/
-
-/*!
- \fn virtual bool QDesignerMemberSheetExtension::isSignal(int index) const
-
- Returns true if the member function with the given \a index is a
- signal, otherwise false.
-
- \sa indexOf()
-*/
-
-/*!
- \fn bool QDesignerMemberSheetExtension::isSlot(int index) const
-
- Returns true if the member function with the given \a index is a
- slot, otherwise false.
-
- \sa indexOf()
-*/
-
-/*!
- \fn bool QDesignerMemberSheetExtension::inheritedFromWidget(int index) const
-
- Returns true if the member function with the given \a index is
- inherited from QWidget, otherwise false.
-
- \sa indexOf()
-*/
-
-/*!
- \fn QString QDesignerMemberSheetExtension::declaredInClass(int index) const
-
- Returns the name of the class in which the member function with
- the given \a index is declared.
-
- \sa indexOf()
-*/
-
-/*!
- \fn QString QDesignerMemberSheetExtension::signature(int index) const
-
- Returns the signature of the member function with the given \a
- index.
-
- \sa indexOf()
-*/
-
-/*!
- \fn QList<QByteArray> QDesignerMemberSheetExtension::parameterTypes(int index) const
-
- Returns the parameter types of the member function with the given
- \a index, as a QByteArray list.
-
- \sa indexOf(), parameterNames()
-*/
-
-/*!
- \fn QList<QByteArray> QDesignerMemberSheetExtension::parameterNames(int index) const
-
- Returns the parameter names of the member function with the given
- \a index, as a QByteArray list.
-
- \sa indexOf(), parameterTypes()
-*/
-
-
-// Doc: Interface only
-
-/*!
- \class QDesignerLayoutDecorationExtension
- \brief The QDesignerLayoutDecorationExtension class provides an extension to a layout in \QD.
- \inmodule QtDesigner
- \internal
-*/
-
-/*!
- \enum QDesignerLayoutDecorationExtension::InsertMode
-
- This enum describes the modes that are used to insert items into a layout.
-
- \value InsertWidgetMode Widgets are inserted into empty cells in a layout.
- \value InsertRowMode Whole rows are inserted into a vertical or grid layout.
- \value InsertColumnMode Whole columns are inserted into a horizontal or grid layout.
-*/
-
-/*!
- \fn virtual QDesignerLayoutDecorationExtension::~QDesignerLayoutDecorationExtension()
-
- Destroys the extension.
-*/
-
-/*!
- \fn virtual QList<QWidget*> QDesignerLayoutDecorationExtension::widgets(QLayout *layout) const
-
- Returns the widgets that are managed by the given \a layout.
-
- \sa insertWidget(), removeWidget()
-*/
-
-/*!
- \fn QRect QDesignerLayoutDecorationExtension::itemInfo(int index) const
-
- Returns the rectangle covered by the item at the given \a index in the layout.
-*/
-
-/*!
- \fn int QDesignerLayoutDecorationExtension::indexOf(QWidget *widget) const
-
- Returns the index of the specified \a widget in the layout.
-*/
-
-/*!
- \fn int QDesignerLayoutDecorationExtension::indexOf(QLayoutItem *item) const
-
- Returns the index of the specified layout \a item.
-*/
-
-/*!
- \fn QDesignerLayoutDecorationExtension::InsertMode QDesignerLayoutDecorationExtension::currentInsertMode() const
-
- Returns the current insertion mode.
-*/
-
-/*!
- \fn int QDesignerLayoutDecorationExtension::currentIndex() const
-
- Returns the current index in the layout.
-*/
-
-/*!
- \fn QPair<int, int> QDesignerLayoutDecorationExtension::currentCell() const
-
- Returns a pair containing the row and column of the current cell in the layout.
-*/
-
-/*!
- \fn void QDesignerLayoutDecorationExtension::insertWidget(QWidget *widget, const QPair<int, int> &cell)
-
- Inserts the given \a widget into the specified \a cell in the layout.
-
- \sa removeWidget()
-*/
-
-/*!
- \fn void QDesignerLayoutDecorationExtension::removeWidget(QWidget *widget)
-
- Removes the specified \a widget from the layout.
-
- \sa insertWidget()
-*/
-
-/*!
- \fn void QDesignerLayoutDecorationExtension::insertRow(int row)
-
- Inserts a new row into the form at the position specified by \a row.
-*/
-
-/*!
- \fn void QDesignerLayoutDecorationExtension::insertColumn(int column)
-
- Inserts a new column into the form at the position specified by \a column.
-*/
-
-/*!
- \fn void QDesignerLayoutDecorationExtension::simplify()
-
- Simplifies the layout by removing unnecessary empty rows and columns, and by changing the
- number of rows or columns spanned by widgets.
-*/
-
-/*!
- \fn int QDesignerLayoutDecorationExtension::findItemAt(const QPoint &position) const
-
- Returns the index of the item in the layout that covers the given \a position.
-*/
-
-/*!
- \fn int QDesignerLayoutDecorationExtension::findItemAt(int row, int column) const
-
- Returns the item in the layout that occupies the specified \a row and \a column in the layout.
-
- Currently, this only applies to grid layouts.
-*/
-
-/*!
- \fn void QDesignerLayoutDecorationExtension::adjustIndicator(const QPoint &position, int index)
-
- Adjusts the indicator for the item specified by \a index so that
- it lies at the given \a position on the form.
-*/
-
-
-// Doc: Interface only
-
-/*!
- \class QDesignerContainerExtension
- \brief The QDesignerContainerExtension class allows you to add pages to
- a custom multi-page container in Qt Designer's workspace.
- \inmodule QtDesigner
-
- QDesignerContainerExtension provide an interface for creating
- custom container extensions. A container extension consists of a
- collection of functions that \QD needs to manage a multi-page
- container plugin, and a list of the container's pages.
-
- \image containerextension-example.png
-
- \warning This is \e not an extension for container plugins in
- general, only custom \e multi-page containers.
-
- To create a container extension, your extension class must inherit
- from both QObject and QDesignerContainerExtension. For example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 6
-
- Since we are implementing an interface, we must ensure that it's
- made known to the meta object system using the Q_INTERFACES()
- macro. This enables \QD to use the qobject_cast() function to
- query for supported interfaces using nothing but a QObject
- pointer.
-
- You must reimplement several functions to enable \QD to manage a
- custom multi-page container widget: \QD uses count() to keep track
- of the number pages in your container, widget() to return the page
- at a given index in the list of the container's pages, and
- currentIndex() to return the list index of the selected page. \QD
- uses the addWidget() function to add a given page to the
- container, expecting it to be appended to the list of pages, while
- it expects the insertWidget() function to add a given page to the
- container by inserting it at a given index.
-
- In \QD the extensions are not created until they are
- required. For that reason you must also create a
- QExtensionFactory, i.e a class that is able to make an instance of
- your extension, and register it using \QD's \l
- {QExtensionManager}{extension manager}.
-
- When a container extension is required, \QD's \l
- {QExtensionManager}{extension manager} will run through all its
- registered factories calling QExtensionFactory::createExtension()
- for each until the first one that is able to create a container
- extension, is found. This factory will then create the extension
- for the plugin.
-
- There are four available types of extensions in \QD:
- QDesignerContainerExtension , QDesignerMemberSheetExtension,
- QDesignerPropertySheetExtension and QDesignerTaskMenuExtension.
- \QD's behavior is the same whether the requested extension is
- associated with a multi page container, a member sheet, a property
- sheet or a task menu.
-
- The QExtensionFactory class provides a standard extension factory,
- and can also be used as an interface for custom extension
- factories. You can either create a new QExtensionFactory and
- reimplement the QExtensionFactory::createExtension() function. For
- example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 7
-
- Or you can use an existing factory, expanding the
- QExtensionFactory::createExtension() function to make the factory
- able to create a container extension as well. For example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 8
-
- For a complete example using the QDesignerContainerExtension
- class, see the \l {designer/containerextension}{Container
- Extension example}. The example shows how to create a custom
- multi-page plugin for \QD.
-
- \sa QExtensionFactory, QExtensionManager, {Creating Custom Widget
- Extensions}
-*/
-
-/*!
- \fn QDesignerContainerExtension::~QDesignerContainerExtension()
-
- Destroys the extension.
-*/
-
-/*!
- \fn int QDesignerContainerExtension::count() const
-
- Returns the number of pages in the container.
-*/
-
-/*!
- \fn QWidget *QDesignerContainerExtension::widget(int index) const
-
- Returns the page at the given \a index in the extension's list of
- pages.
-
- \sa addWidget(), insertWidget()
-*/
-
-/*!
- \fn int QDesignerContainerExtension::currentIndex() const
-
- Returns the index of the currently selected page in the
- container.
-
- \sa setCurrentIndex()
-*/
-
-/*!
- \fn void QDesignerContainerExtension::setCurrentIndex(int index)
-
- Sets the currently selected page in the container to be the
- page at the given \a index in the extension's list of pages.
-
- \sa currentIndex()
-*/
-
-/*!
- \fn void QDesignerContainerExtension::addWidget(QWidget *page)
-
- Adds the given \a page to the container by appending it to the
- extension's list of pages.
-
- \sa insertWidget(), remove(), widget()
-*/
-
-/*!
- \fn void QDesignerContainerExtension::insertWidget(int index, QWidget *page)
-
- Adds the given \a page to the container by inserting it at the
- given \a index in the extension's list of pages.
-
- \sa addWidget(), remove(), widget()
-*/
-
-/*!
- \fn void QDesignerContainerExtension::remove(int index)
-
- Removes the page at the given \a index from the extension's list
- of pages.
-
- \sa addWidget(), insertWidget()
-*/
-
-
-// Doc: Interface only
-
-/*!
- \class QDesignerTaskMenuExtension
- \brief The QDesignerTaskMenuExtension class allows you to add custom
- menu entries to Qt Designer's task menu.
- \inmodule QtDesigner
-
- QDesignerTaskMenuExtension provides an interface for creating
- custom task menu extensions. It is typically used to create task
- menu entries that are specific to a plugin in \QD.
-
- \QD uses the QDesignerTaskMenuExtension to feed its task
- menu. Whenever a task menu is requested, \QD will query
- for the selected widget's task menu extension.
-
- \image taskmenuextension-example-faded.png
-
- A task menu extension is a collection of QActions. The actions
- appear as entries in the task menu when the plugin with the
- specified extension is selected. The image above shows the custom
- \gui {Edit State...} action which appears in addition to \QD's
- default task menu entries: \gui Cut, \gui Copy, \gui Paste etc.
-
- To create a custom task menu extension, your extension class must
- inherit from both QObject and QDesignerTaskMenuExtension. For
- example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 9
-
- Since we are implementing an interface, we must ensure that it
- is made known to the meta-object system using the Q_INTERFACES()
- macro. This enables \QD to use the qobject_cast() function to
- query for supported interfaces using nothing but a QObject
- pointer.
-
- You must reimplement the taskActions() function to return a list
- of actions that will be included in \QD task menu. Optionally, you
- can reimplement the preferredEditAction() function to set the
- action that is invoked when selecting your plugin and pressing
- \key F2. The preferred edit action must be one of the actions
- returned by taskActions() and, if it's not defined, pressing the
- \key F2 key will simply be ignored.
-
- In \QD, extensions are not created until they are required. A
- task menu extension, for example, is created when you click the
- right mouse button over a widget in \QD's workspace. For that
- reason you must also construct an extension factory, using either
- QExtensionFactory or a subclass, and register it using \QD's
- \l {QExtensionManager}{extension manager}.
-
- When a task menu extension is required, \QD's \l
- {QExtensionManager}{extension manager} will run through all its
- registered factories calling QExtensionFactory::createExtension()
- for each until it finds one that is able to create a task menu
- extension for the selected widget. This factory will then make an
- instance of the extension.
-
- There are four available types of extensions in \QD:
- QDesignerContainerExtension, QDesignerMemberSheetExtension,
- QDesignerPropertySheetExtension, and QDesignerTaskMenuExtension.
- \QD's behavior is the same whether the requested extension is
- associated with a container, a member sheet, a property sheet or a
- task menu.
-
- The QExtensionFactory class provides a standard extension factory,
- and can also be used as an interface for custom extension
- factories. You can either create a new QExtensionFactory and
- reimplement the QExtensionFactory::createExtension() function. For
- example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 10
-
- Or you can use an existing factory, expanding the
- QExtensionFactory::createExtension() function to make the factory
- able to create a task menu extension as well. For example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 11
-
- For a complete example using the QDesignerTaskMenuExtension class,
- see the \l {designer/taskmenuextension}{Task Menu Extension
- example}. The example shows how to create a custom widget plugin
- for \QD, and how to to use the QDesignerTaskMenuExtension
- class to add custom items to \QD's task menu.
-
- \sa QExtensionFactory, QExtensionManager, {Creating Custom Widget
- Extensions}
-*/
-
-/*!
- \fn QDesignerTaskMenuExtension::~QDesignerTaskMenuExtension()
-
- Destroys the task menu extension.
-*/
-
-/*!
- \fn QAction *QDesignerTaskMenuExtension::preferredEditAction() const
-
- Returns the action that is invoked when selecting a plugin with
- the specified extension and pressing \key F2.
-
- The action must be one of the actions returned by taskActions().
-*/
-
-/*!
- \fn QList<QAction*> QDesignerTaskMenuExtension::taskActions() const
-
- Returns the task menu extension as a list of actions which will be
- included in \QD's task menu when a plugin with the specified
- extension is selected.
-
- The function must be reimplemented to add actions to the list.
-*/
-
-
-// Doc: Interface only
-
-/*!
- \class QDesignerCustomWidgetCollectionInterface
-
- \brief The QDesignerCustomWidgetCollectionInterface class allows
- you to include several custom widgets in one single library.
-
- \inmodule QtDesigner
-
- When implementing a custom widget plugin, you build it as a
- separate library. If you want to include several custom widget
- plugins in the same library, you must in addition subclass
- QDesignerCustomWidgetCollectionInterface.
-
- QDesignerCustomWidgetCollectionInterface contains one single
- function returning a list of the collection's
- QDesignerCustomWidgetInterface objects. For example, if you have
- several custom widgets \c CustomWidgetOne, \c CustomWidgetTwo and
- \c CustomWidgetThree, the class definition may look like this:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 12
-
- In the class constructor you add the interfaces to your custom
- widgets to the list which you return in the customWidgets()
- function:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 13
-
- Note that instead of exporting each custom widget plugin using the
- Q_EXPORT_PLUGIN2() macro, you export the entire collection. The
- Q_EXPORT_PLUGIN2() macro ensures that \QD can access and construct
- the custom widgets. Without this macro, there is no way for \QD to
- use them.
-
- \sa QDesignerCustomWidgetInterface, {Creating Custom Widgets for
- Qt Designer}
-*/
-
-/*!
- \fn QDesignerCustomWidgetCollectionInterface::~QDesignerCustomWidgetCollectionInterface() {
-
- Destroys the custom widget collection interface.
-*/
-
-/*!
- \fn QList<QDesignerCustomWidgetInterface*> QDesignerCustomWidgetCollectionInterface::customWidgets() const
-
- Returns a list of interfaces to the collection's custom widgets.
-*/
-
-
-// Doc: Interface only
-
-/*!
- \class QDesignerCustomWidgetInterface
-
- \brief The QDesignerCustomWidgetInterface class enables Qt Designer
- to access and construct custom widgets.
-
- \inmodule QtDesigner
-
- QDesignerCustomWidgetInterface provides a custom widget with an
- interface. The class contains a set of functions that must be subclassed
- to return basic information about the widget, such as its class name and
- the name of its header file. Other functions must be implemented to
- initialize the plugin when it is loaded, and to construct instances of
- the custom widget for \QD to use.
-
- When implementing a custom widget you must subclass
- QDesignerCustomWidgetInterface to expose your widget to \QD. For
- example, this is the declaration for the plugin used in the
- \l{Custom Widget Plugin Example}{Custom Widget Plugin example} that
- enables an analog clock custom widget to be used by \QD:
-
- \snippet examples/designer/customwidgetplugin/customwidgetplugin.h 0
-
- Note that the only part of the class definition that is specific
- to this particular custom widget is the class name. In addition,
- since we are implementing an interface, we must ensure that it's
- made known to the meta object system using the Q_INTERFACES()
- macro. This enables \QD to use the qobject_cast() function to
- query for supported interfaces using nothing but a QObject
- pointer.
-
- After \QD loads a custom widget plugin, it calls the interface's
- initialize() function to enable it to set up any resources that it
- may need. This function is called with a QDesignerFormEditorInterface
- parameter that provides the plugin with a gateway to all of \QD's API.
-
- \QD constructs instances of the custom widget by calling the plugin's
- createWidget() function with a suitable parent widget. Plugins must
- construct and return an instance of a custom widget with the specified
- parent widget.
-
- In the implementation of the class you must remember to export
- your custom widget plugin to \QD using the Q_EXPORT_PLUGIN2()
- macro. For example, if a library called \c libcustomwidgetplugin.so
- (on Unix) or \c libcustomwidget.dll (on Windows) contains a widget
- class called \c MyCustomWidget, we can export it by adding the
- following line to the file containing the plugin implementation:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 14
-
- This macro ensures that \QD can access and construct the custom widget.
- Without this macro, there is no way for \QD to use it.
-
- When implementing a custom widget plugin, you build it as a
- separate library. If you want to include several custom widget
- plugins in the same library, you must in addition subclass
- QDesignerCustomWidgetCollectionInterface.
-
- \warning If your custom widget plugin contains QVariant
- properties, be aware that only the following \l
- {QVariant::Type}{types} are supported:
-
- \list
- \o QVariant::ByteArray
- \o QVariant::Bool
- \o QVariant::Color
- \o QVariant::Cursor
- \o QVariant::Date
- \o QVariant::DateTime
- \o QVariant::Double
- \o QVariant::Int
- \o QVariant::Point
- \o QVariant::Rect
- \o QVariant::Size
- \o QVariant::SizePolicy
- \o QVariant::String
- \o QVariant::Time
- \o QVariant::UInt
- \endlist
-
- For a complete example using the QDesignerCustomWidgetInterface
- class, see the \l {designer/customwidgetplugin}{Custom Widget
- Example}. The example shows how to create a custom widget plugin
- for \QD.
-
- \sa QDesignerCustomWidgetCollectionInterface {Creating Custom
- Widgets for Qt Designer}
-*/
-
-/*!
- \fn QDesignerCustomWidgetInterface::~QDesignerCustomWidgetInterface()
-
- Destroys the custom widget interface.
-*/
-
-/*!
- \fn QString QDesignerCustomWidgetInterface::name() const
-
- Returns the class name of the custom widget supplied by the interface.
-
- The name returned \e must be identical to the class name used for the
- custom widget.
-*/
-
-/*!
- \fn QString QDesignerCustomWidgetInterface::group() const
-
- Returns the name of the group to which the custom widget belongs.
-*/
-
-/*!
- \fn QString QDesignerCustomWidgetInterface::toolTip() const
-
- Returns a short description of the widget that can be used by \QD
- in a tool tip.
-*/
-
-/*!
- \fn QString QDesignerCustomWidgetInterface::whatsThis() const
-
- Returns a description of the widget that can be used by \QD in
- "What's This?" help for the widget.
-*/
-
-/*!
- \fn QString QDesignerCustomWidgetInterface::includeFile() const
-
- Returns the path to the include file that \l uic uses when
- creating code for the custom widget.
-*/
-
-/*!
- \fn QIcon QDesignerCustomWidgetInterface::icon() const
-
- Returns the icon used to represent the custom widget in \QD's
- widget box.
-*/
-
-/*!
- \fn bool QDesignerCustomWidgetInterface::isContainer() const
-
- Returns true if the custom widget is intended to be used as a
- container; otherwise returns false.
-
- Most custom widgets are not used to hold other widgets, so their
- implementations of this function will return false, but custom
- containers will return true to ensure that they behave correctly
- in \QD.
-*/
-
-/*!
- \fn QWidget *QDesignerCustomWidgetInterface::createWidget(QWidget *parent)
-
- Returns a new instance of the custom widget, with the given \a
- parent.
-*/
-
-/*!
- \fn bool QDesignerCustomWidgetInterface::isInitialized() const
-
- Returns true if the widget has been initialized; otherwise returns
- false.
-
- \sa initialize()
-*/
-
-/*!
- \fn void QDesignerCustomWidgetInterface::initialize(QDesignerFormEditorInterface *formEditor)
-
- Initializes the widget for use with the specified \a formEditor
- interface.
-
- \sa isInitialized()
-*/
-
-/*!
- \fn QString QDesignerCustomWidgetInterface::domXml() const
-
- Returns the XML that is used to describe the custom widget's
- properties to \QD.
-*/
-
-/*!
- \fn QString QDesignerCustomWidgetInterface::codeTemplate() const
-
- This function is reserved for future use by \QD.
-
- \omit
- Returns the code template that \QD includes in forms that contain
- the custom widget when they are saved.
- \endomit
-*/
-
-/*!
- \macro QDESIGNER_WIDGET_EXPORT
- \relates QDesignerCustomWidgetInterface
- \since 4.1
-
- This macro is used when defining custom widgets to ensure that they are
- correctly exported from plugins for use with \QD.
-
- On some platforms, the symbols required by \QD to create new widgets
- are removed from plugins by the build system, making them unusable.
- Using this macro ensures that the symbols are retained on those platforms,
- and has no side effects on other platforms.
-
- For example, the \l{designer/worldtimeclockplugin}{World Time Clock Plugin}
- example exports a custom widget class with the following declaration:
-
- \snippet examples/designer/worldtimeclockplugin/worldtimeclock.h 0
- \dots
- \snippet examples/designer/worldtimeclockplugin/worldtimeclock.h 2
-
- \sa {Creating Custom Widgets for Qt Designer}
-*/
-
-
-// Doc: Abstract class
-
-/*!
- \class QDesignerDnDItemInterface
- \brief The QDesignerDnDItemInterface class provides an interface that is used to manage items
- during a drag and drop operation.
- \inmodule QtDesigner
- \internal
-*/
-
-/*!
- \enum QDesignerDnDItemInterface::DropType
-
- This enum describes the result of a drag and drop operation.
-
- \value MoveDrop The item was moved.
- \value CopyDrop The item was copied.
-*/
-
-/*!
- \fn QDesignerDnDItemInterface::QDesignerDnDItemInterface()
-
- Constructs a new interface to a drag and drop item.
-*/
-
-/*!
- \fn QDesignerDnDItemInterface::~QDesignerDnDItemInterface()
-
- Destroys the interface to the item.
-*/
-
-/*!
- \fn DomUI *QDesignerDnDItemInterface::domUi() const
-
- Returns a user interface object for the item.
-*/
-
-/*!
- \fn QWidget *QDesignerDnDItemInterface::widget() const
-
- Returns the widget being copied or moved in the drag and drop operation.
-
- \sa source()
-*/
-
-/*!
- \fn QWidget *QDesignerDnDItemInterface::decoration() const
-
- Returns the widget used to represent the item.
-*/
-
-/*!
- \fn QPoint QDesignerDnDItemInterface::hotSpot() const
-
- Returns the cursor's hotspot.
-
- \sa QDrag::hotSpot()
-*/
-
-/*!
- \fn DropType QDesignerDnDItemInterface::type() const
-
- Returns the type of drag and drop operation in progress.
-*/
-
-/*!
- \fn QWidget *QDesignerDnDItemInterface::source() const
-
- Returns the widget that is the source of the drag and drop operation; i.e. the original
- container of the widget being dragged.
-
- \sa widget()
-*/
-
-
-// Doc: Abstract class
-
-/*!
- \class QDesignerIconCacheInterface
- \brief The QDesignerIconCacheInterface class provides an interface to \QD's icon cache.
- \inmodule QtDesigner
- \internal
-*/
-
-/*!
- \fn QDesignerIconCacheInterface::QDesignerIconCacheInterface(QObject *parent)
-
- Constructs a new interface with the given \a parent.
-*/
-
-/*!
- \fn QIcon QDesignerIconCacheInterface::nameToIcon(const QString &filePath, const QString &qrcPath)
-
- Returns the icon associated with the name specified by \a filePath in the resource
- file specified by \a qrcPath.
-
- If \a qrcPath refers to a valid resource file, the name used for the file path is a path
- within those resources; otherwise the file path refers to a local file.
-
- \sa {The Qt Resource System}, nameToPixmap()
-*/
-
-/*!
- \fn QPixmap QDesignerIconCacheInterface::nameToPixmap(const QString &filePath, const QString &qrcPath)
-
- Returns the pixmap associated with the name specified by \a filePath in the resource
- file specified by \a qrcPath.
-
- If \a qrcPath refers to a valid resource file, the name used for the file path is a path
- within those resources; otherwise the file path refers to a local file.
-
- \sa {The Qt Resource System}, nameToIcon()
-*/
-
-/*!
- \fn QString QDesignerIconCacheInterface::iconToFilePath(const QIcon &icon) const
-
- Returns the file path associated with the given \a icon. The file path is a path within
- an application resources.
-*/
-
-/*!
- \fn QString QDesignerIconCacheInterface::iconToQrcPath(const QIcon &icon) const
-
- Returns the path to the resource file that refers to the specified \a icon. The resource
- path refers to a local file.
-*/
-
-/*!
- \fn QString QDesignerIconCacheInterface::pixmapToFilePath(const QPixmap &pixmap) const
-
- Returns the file path associated with the given \a pixmap. The file path is a path within
- an application resources.
-*/
-
-/*!
- \fn QString QDesignerIconCacheInterface::pixmapToQrcPath(const QPixmap &pixmap) const
-
- Returns the path to the resource file that refers to the specified \a pixmap. The resource
- path refers to a local file.
-*/
-
-/*!
- \fn QList<QPixmap> QDesignerIconCacheInterface::pixmapList() const
-
- Returns a list of pixmaps for the icons provided by the icon cache.
-*/
-
-/*!
- \fn QList<QIcon> QDesignerIconCacheInterface::iconList() const
-
- Returns a list of icons provided by the icon cache.
-*/
-
-/*!
- \fn QString QDesignerIconCacheInterface::resolveQrcPath(const QString &filePath, const QString &qrcPath, const QString &workingDirectory) const
-
- Returns a path to a resource specified by the \a filePath within
- the resource file located at \a qrcPath. If \a workingDirectory is
- a valid path to a directory, the path returned will be relative to
- that directory; otherwise an absolute path is returned.
-
- \omit
- ### Needs checking
- \endomit
-*/
-
-
-// Doc: Interface only
-
-/*!
- \class QDesignerPropertySheetExtension
-
- \brief The QDesignerPropertySheetExtension class allows you to
- manipulate a widget's properties which is displayed in Qt
- Designer's property editor.
-
- \sa QDesignerDynamicPropertySheetExtension
-
- \inmodule QtDesigner
-
- QDesignerPropertySheetExtension provides a collection of functions that
- are typically used to query a widget's properties, and to
- manipulate the properties' appearance in the property editor. For
- example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 15
-
- Note that if you change the value of a property using the
- QDesignerPropertySheetExtension::setProperty() function, the undo
- stack is not updated. To ensure that a property's value can be
- reverted using the undo stack, you must use the
- QDesignerFormWindowCursorInterface::setProperty() function, or its
- buddy \l
- {QDesignerFormWindowCursorInterface::setWidgetProperty()}{setWidgetProperty()},
- instead.
-
- When implementing a custom widget plugin, a pointer to \QD's
- current QDesignerFormEditorInterface object (\c formEditor in the
- example above) is provided by the
- QDesignerCustomWidgetInterface::initialize() function's parameter.
-
- The property sheet, or any other extension, can be retrieved by
- querying \QD's extension manager using the qt_extension()
- function. When you want to release the extension, you only need to
- delete the pointer.
-
- All widgets have a default property sheet which populates \QD's
- property editor with the widget's properties (i.e the ones defined
- with the Q_PROPERTY() macro). But QDesignerPropertySheetExtension
- also provides an interface for creating custom property sheet
- extensions.
-
- \warning \QD uses the QDesignerPropertySheetExtension to feed its
- property editor. Whenever a widget is selected in its workspace,
- \QD will query for the widget's property sheet extension. If the
- selected widget has an implemented property sheet extension, this
- extension will override the default property sheet.
-
- To create a property sheet extension, your extension class must
- inherit from both QObject and
- QDesignerPropertySheetExtension. Then, since we are implementing
- an interface, we must ensure that it's made known to the meta
- object system using the Q_INTERFACES() macro:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 16
-
- This enables \QD to use qobject_cast() to query for supported
- interfaces using nothing but a QObject pointer.
-
- In \QD the extensions are not created until they are
- required. For that reason, when implementing a property sheet
- extension, you must also create a QExtensionFactory, i.e a class
- that is able to make an instance of your extension, and register
- it using \QD's \l {QExtensionManager}{extension manager}.
-
- When a property sheet extension is required, \QD's \l
- {QExtensionManager}{extension manager} will run through all its
- registered factories calling QExtensionFactory::createExtension()
- for each until the first one that is able to create a property
- sheet extension for the selected widget, is found. This factory
- will then make an instance of the extension. If no such factory
- can be found, \QD will use the default property sheet.
-
- There are four available types of extensions in \QD:
- QDesignerContainerExtension, QDesignerMemberSheetExtension,
- QDesignerPropertySheetExtension and QDesignerTaskMenuExtension. Qt
- Designer's behavior is the same whether the requested extension is
- associated with a multi page container, a member sheet, a property
- sheet or a task menu.
-
- The QExtensionFactory class provides a standard extension factory,
- and can also be used as an interface for custom extension
- factories. You can either create a new QExtensionFactory and
- reimplement the QExtensionFactory::createExtension() function. For
- example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 17
-
- Or you can use an existing factory, expanding the
- QExtensionFactory::createExtension() function to make the factory
- able to create a property sheet extension extension as well. For
- example:
-
- \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 18
-
- For a complete example using an extension class, see the \l
- {designer/taskmenuextension}{Task Menu Extension example}. The
- example shows how to create a custom widget plugin for Qt
- Designer, and how to to use the QDesignerTaskMenuExtension class
- to add custom items to \QD's task menu.
-
- \sa QExtensionFactory, QExtensionManager, {Creating Custom Widget
- Extensions}
-*/
-
-/*!
- \fn QDesignerPropertySheetExtension::~QDesignerPropertySheetExtension()
-
- Destroys the property sheet extension.
-*/
-
-/*!
- \fn int QDesignerPropertySheetExtension::count() const
-
- Returns the selected widget's number of properties.
-*/
-
-/*!
- \fn int QDesignerPropertySheetExtension::indexOf(const QString &name) const
-
- Returns the index for a given property \a name.
-
- \sa propertyName()
-*/
-
-/*!
- \fn QString QDesignerPropertySheetExtension::propertyName(int index) const
-
- Returns the name of the property at the given \a index.
-
- \sa indexOf()
-*/
-
-/*!
- \fn QString QDesignerPropertySheetExtension::propertyGroup(int index) const
-
- Returns the property group for the property at the given \a index.
-
- \QD's property editor supports property groups, i.e. sections of
- related properties. A property can be related to a group using the
- setPropertyGroup() function. The default group of any property is
- the name of the class that defines it. For example, the
- QObject::objectName property appears within the QObject property
- group.
-
- \sa indexOf(), setPropertyGroup()
-*/
-
-/*!
- \fn void QDesignerPropertySheetExtension::setPropertyGroup(int index, const QString &group)
-
- Sets the property group for the property at the given \a index to
- \a group.
-
- Relating a property to a group makes it appear within that group's
- section in the property editor. The default property group of any
- property is the name of the class that defines it. For example,
- the QObject::objectName property appears within the QObject
- property group.
-
- \sa indexOf(), property(), propertyGroup()
-*/
-
-/*!
- \fn bool QDesignerPropertySheetExtension::hasReset(int index) const
-
- Returns true if the property at the given \a index has a reset
- button in \QD's property editor, otherwise false.
-
- \sa indexOf(), reset()
-*/
-
-/*!
- \fn bool QDesignerPropertySheetExtension::reset(int index)
-
- Resets the value of the property at the given \a index, to the
- default value. Returns true if a default value could be found, otherwise false.
-
- \sa indexOf(), hasReset(), isChanged()
-*/
-
-/*!
- \fn bool QDesignerPropertySheetExtension::isVisible(int index) const
-
- Returns true if the property at the given \a index is visible in
- \QD's property editor, otherwise false.
-
- \sa indexOf(), setVisible()
-*/
-
-/*!
- \fn void QDesignerPropertySheetExtension::setVisible(int index, bool visible)
-
- If \a visible is true, the property at the given \a index is
- visible in \QD's property editor; otherwise the property is
- hidden.
-
- \sa indexOf(), isVisible()
-*/
-
-/*!
- \fn bool QDesignerPropertySheetExtension::isAttribute(int index) const
-
- Returns true if the property at the given \a index is an attribute,
- which will be \e excluded from the UI file, otherwise false.
-
- \sa indexOf(), setAttribute()
-*/
-
-/*!
- \fn void QDesignerPropertySheetExtension::setAttribute(int index, bool attribute)
-
- If \a attribute is true, the property at the given \a index is
- made an attribute which will be \e excluded from the UI file;
- otherwise it will be included.
-
- \sa indexOf(), isAttribute()
-*/
-
-/*!
- \fn QVariant QDesignerPropertySheetExtension::property(int index) const
-
- Returns the value of the property at the given \a index.
-
- \sa indexOf(), setProperty(), propertyGroup()
-*/
-
-/*!
- \fn void QDesignerPropertySheetExtension::setProperty(int index, const QVariant &value)
-
- Sets the \a value of the property at the given \a index.
-
- \warning If you change the value of a property using this
- function, the undo stack is not updated. To ensure that a
- property's value can be reverted using the undo stack, you must
- use the QDesignerFormWindowCursorInterface::setProperty()
- function, or its buddy \l
- {QDesignerFormWindowCursorInterface::setWidgetProperty()}{setWidgetProperty()},
- instead.
-
- \sa indexOf(), property(), propertyGroup()
-*/
-
-/*!
- \fn bool QDesignerPropertySheetExtension::isChanged(int index) const
-
- Returns true if the value of the property at the given \a index
- differs from the property's default value, otherwise false.
-
- \sa indexOf(), setChanged(), reset()
-*/
-
-/*!
- \fn void QDesignerPropertySheetExtension::setChanged(int index, bool changed)
-
- Sets whether the property at the given \a index is different from
- its default value, or not, depending on the \a changed parameter.
-
- \sa indexOf(), isChanged()
-*/
-
-// Doc: Interface only
-
-/*!
- \class QDesignerDynamicPropertySheetExtension
-
- \brief The QDesignerDynamicPropertySheetExtension class allows you to
- manipulate a widget's dynamic properties in Qt Designer's property editor.
-
- \sa QDesignerPropertySheetExtension, {QObject#Dynamic Properties}{Dynamic Properties}
-
- \inmodule QtDesigner
- \since 4.3
-*/
-
-/*!
- \fn QDesignerDynamicPropertySheetExtension::~QDesignerDynamicPropertySheetExtension()
-
- Destroys the dynamic property sheet extension.
-*/
-
-/*!
- \fn bool QDesignerDynamicPropertySheetExtension::dynamicPropertiesAllowed() const
-
- Returns true if the widget supports dynamic properties; otherwise returns false.
-*/
-
-/*!
- \fn int QDesignerDynamicPropertySheetExtension::addDynamicProperty(const QString &propertyName, const QVariant &value)
-
- Adds a dynamic property named \a propertyName and sets its value to \a value.
- Returns the index of the property if it was added successfully; otherwise returns -1 to
- indicate failure.
-*/
-
-/*!
- \fn bool QDesignerDynamicPropertySheetExtension::removeDynamicProperty(int index)
-
- Removes the dynamic property at the given \a index.
- Returns true if the operation succeeds; otherwise returns false.
-*/
-
-/*!
- \fn bool QDesignerDynamicPropertySheetExtension::isDynamicProperty(int index) const
-
- Returns true if the property at the given \a index is a dynamic property; otherwise
- returns false.
-*/
-
-/*!
- \fn bool QDesignerDynamicPropertySheetExtension::canAddDynamicProperty(const QString &propertyName) const
-
- Returns true if \a propertyName is a valid, unique name for a dynamic
- property; otherwise returns false.
-
-*/