src/gui/widgets/qlabel_p.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 19 Feb 2010 23:40:16 +0200
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Revision: 201003 Kit: 201007
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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 QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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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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** 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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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QLABEL_P_H
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#define QLABEL_P_H
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//
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//  W A R N I N G
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//  -------------
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//
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// This file is not part of the Qt API.  It exists purely as an
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// implementation detail.  This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include "qlabel.h"
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#include "../text/qtextdocumentlayout_p.h"
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#include "private/qtextcontrol_p.h"
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#include "qtextdocumentfragment.h"
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#include "qframe_p.h"
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#include "qtextdocument.h"
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#include "qmovie.h"
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#include "qimage.h"
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#include "qbitmap.h"
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#include "qpicture.h"
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#include "qmenu.h"
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QT_BEGIN_NAMESPACE
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class QLabelPrivate : public QFramePrivate
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{
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    Q_DECLARE_PUBLIC(QLabel)
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public:
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    QLabelPrivate() {}
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    void init();
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    void clearContents();
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    void updateLabel();
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    QSize sizeForWidth(int w) const;
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    mutable QSize sh;
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    mutable QSize msh;
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    mutable bool valid_hints;
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    mutable QSizePolicy sizePolicy;
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    int margin;
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    QString text;
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    QPixmap  *pixmap;
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    QPixmap *scaledpixmap;
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    QImage *cachedimage;
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#ifndef QT_NO_PICTURE
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    QPicture *picture;
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#endif
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#ifndef QT_NO_MOVIE
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    QPointer<QMovie> movie;
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    void _q_movieUpdated(const QRect&);
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    void _q_movieResized(const QSize&);
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#endif
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#ifndef QT_NO_SHORTCUT
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    void updateShortcut();
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#endif
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#ifndef QT_NO_SHORTCUT
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    QPointer<QWidget> buddy;
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    int shortcutId;
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#endif
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    ushort align;
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    short indent;
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    uint scaledcontents :1;
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    mutable uint textLayoutDirty : 1;
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    mutable uint textDirty : 1;
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    mutable uint isRichText : 1;
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    mutable uint isTextLabel : 1;
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    mutable uint hasShortcut : 1;
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    Qt::TextFormat textformat;
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    mutable QTextControl *control;
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    mutable QTextCursor shortcutCursor;
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    Qt::TextInteractionFlags textInteractionFlags;
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    inline bool needTextControl() const {
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        return isTextLabel
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               && (isRichText
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                   || (!isRichText && (textInteractionFlags & (Qt::TextSelectableByMouse | Qt::TextSelectableByKeyboard))));
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    }
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    void ensureTextPopulated() const;
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    void ensureTextLayouted() const;
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    void ensureTextControl() const;
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    void sendControlEvent(QEvent *e);
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    void _q_linkHovered(const QString &link);
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    QRectF layoutRect() const;
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    QRect documentRect() const;
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    QPoint layoutPoint(const QPoint& p) const;
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#ifndef QT_NO_CONTEXTMENU
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    QMenu *createStandardContextMenu(const QPoint &pos);
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#endif
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    bool openExternalLinks;
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#ifndef QT_NO_CURSOR
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    uint validCursor : 1;
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    uint onAnchor : 1;
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    QCursor cursor;
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#endif
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    friend class QMessageBoxPrivate;
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};
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QT_END_NAMESPACE
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#endif // QLABEL_P_H