彻底改版2.0
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third/designer/lib/sdk/abstractformwindowcursor.cpp
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252
third/designer/lib/sdk/abstractformwindowcursor.cpp
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Designer of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "abstractformwindowcursor.h"
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QT_BEGIN_NAMESPACE
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/*!
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\class QDesignerFormWindowCursorInterface
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\brief The QDesignerFormWindowCursorInterface class allows you to
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query and modify a form window's widget selection, and in addition
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modify the properties of all the form's widgets.
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\inmodule QtDesigner
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QDesignerFormWindowCursorInterface is a convenience class that
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provides an interface to the associated form window's text cursor;
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it provides a collection of functions that enables you to query a
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given form window's selection and change the selection's focus
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according to defined modes (MoveMode) and movements
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(MoveOperation). You can also use the interface to query the
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form's widgets and change their properties.
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The interface is not intended to be instantiated directly, but to
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provide access to the selections and widgets of \QD's current form
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windows. QDesignerFormWindowInterface always provides an
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associated cursor interface. The form window for a given widget
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can be retrieved using the static
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QDesignerFormWindowInterface::findFormWindow() functions. For
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example:
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\snippet doc/src/snippets/code/tools_designer_src_lib_sdk_abstractformwindowcursor.cpp 0
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You can retrieve any of \QD's current form windows through
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\QD's \l {QDesignerFormWindowManagerInterface}{form window
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manager}.
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Once you have a form window's cursor interface, you can check if
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the form window has a selection at all using the hasSelection()
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function. You can query the form window for its total
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widgetCount() and selectedWidgetCount(). You can retrieve the
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currently selected widget (or widgets) using the current() or
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selectedWidget() functions.
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You can retrieve any of the form window's widgets using the
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widget() function, and check if a widget is selected using the
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isWidgetSelected() function. You can use the setProperty()
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function to set the selected widget's properties, and the
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setWidgetProperty() or resetWidgetProperty() functions to modify
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the properties of any given widget.
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Finally, you can change the selection by changing the text
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cursor's position() using the setPosition() and movePosition()
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functions.
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\sa QDesignerFormWindowInterface, QDesignerFormWindowManagerInterface
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*/
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/*!
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\enum QDesignerFormWindowCursorInterface::MoveOperation
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This enum describes the types of text cursor operation that can occur in a form window.
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\value NoMove The cursor does not move.
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\value Start Moves the cursor to the start of the focus chain.
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\value End Moves the cursor to the end of the focus chain.
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\value Next Moves the cursor to the next widget in the focus chain.
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\value Prev Moves the cursor to the previous widget in the focus chain.
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\value Left The cursor moves to the left.
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\value Right The cursor moves to the right.
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\value Up The cursor moves upwards.
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\value Down The cursor moves downwards.
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*/
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/*!
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\enum QDesignerFormWindowCursorInterface::MoveMode
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This enum describes the different modes that are used when the text cursor moves.
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\value MoveAnchor The anchor moves with the cursor to its new location.
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\value KeepAnchor The anchor remains at the cursor's old location.
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*/
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/*!
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Returns true if the specified \a widget is selected; otherwise
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returns false.
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*/
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bool QDesignerFormWindowCursorInterface::isWidgetSelected(QWidget *widget) const
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{
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for (int index=0; index<selectedWidgetCount(); ++index) {
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if (selectedWidget(index) == widget)
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return true;
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}
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return false;
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}
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/*!
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\fn virtual QDesignerFormWindowCursorInterface::~QDesignerFormWindowCursorInterface()
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Destroys the cursor interface.
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*/
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/*!
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\fn virtual QDesignerFormWindowInterface *QDesignerFormWindowCursorInterface::formWindow() const
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Returns the form window interface associated with this cursor interface.
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*/
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/*!
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\fn virtual bool QDesignerFormWindowCursorInterface::movePosition(MoveOperation operation, MoveMode mode)
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Performs the given \a operation on the cursor using the specified
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\a mode, and returns true if it completed successfully; otherwise
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returns false.
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\sa position(), setPosition()
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*/
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/*!
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\fn virtual int QDesignerFormWindowCursorInterface::position() const
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Returns the cursor position.
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\sa setPosition(), movePosition()
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*/
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/*!
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\fn virtual void QDesignerFormWindowCursorInterface::setPosition(int position, MoveMode mode = MoveAnchor)
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Sets the position of the cursor to the given \a position using the
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\a mode to specify how it is moved there.
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\sa position(), movePosition()
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*/
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/*!
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\fn virtual QWidget *QDesignerFormWindowCursorInterface::current() const
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Returns the currently selected widget in the form window.
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\sa selectedWidget()
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*/
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/*!
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\fn virtual int QDesignerFormWindowCursorInterface::widgetCount() const
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Returns the number of widgets in the form window.
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\sa selectedWidgetCount()
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*/
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/*!
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\fn virtual QWidget *QDesignerFormWindowCursorInterface::widget(int index) const
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Returns the widget with the given \a index in the list of widgets
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in the form window.
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\sa selectedWidget()
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*/
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/*!
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\fn virtual bool QDesignerFormWindowCursorInterface::hasSelection() const
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Returns true if the form window contains a selection; otherwise
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returns false.
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*/
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/*!
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\fn virtual int QDesignerFormWindowCursorInterface::selectedWidgetCount() const
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Returns the number of selected widgets in the form window.
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\sa widgetCount()
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*/
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/*!
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\fn virtual QWidget *QDesignerFormWindowCursorInterface::selectedWidget(int index) const
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Returns the widget with the given \a index in the list of selected
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widgets.
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\sa current(), widget()
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*/
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/*!
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\fn virtual void QDesignerFormWindowCursorInterface::setProperty(const QString &name, const QVariant &value)
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Sets the property with the given \a name for the currently
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selected widget to the specified \a value.
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\sa setWidgetProperty(), resetWidgetProperty()
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*/
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/*!
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\fn virtual void QDesignerFormWindowCursorInterface::setWidgetProperty(QWidget *widget, const QString &name, const QVariant &value)
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Sets the property with the given \a name for the given \a widget
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to the specified \a value.
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\sa resetWidgetProperty(), setProperty()
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*/
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/*!
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\fn virtual void QDesignerFormWindowCursorInterface::resetWidgetProperty(QWidget *widget, const QString &name)
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Resets the property with the given \a name for the specified \a
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widget to its default value.
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\sa setProperty(), setWidgetProperty()
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*/
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QT_END_NAMESPACE
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