1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtGui module of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef QICON_P_H

    43 #define QICON_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists purely as an

    50 // implementation detail.  This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include <QtCore/qglobal.h>

    57 #include <QtCore/qsize.h>

    58 #include <QtCore/qlist.h>

    59 #include <QtGui/qpixmap.h>

    60 #include <QtGui/qicon.h>

    61 #include <QtGui/qiconengine.h>

    62 

    63 QT_BEGIN_NAMESPACE

    64 

    65 class QIconPrivate

    66 {

    67 public:

    68     QIconPrivate();

    69 

    70     ~QIconPrivate() {

    71         if (engine_version == 1) {

    72             if (!v1RefCount->deref()) {

    73                 delete engine;

    74                 delete v1RefCount;

    75             }

    76         } else if (engine_version == 2) {

    77             delete engine;

    78         }

    79     }

    80 

    81     QIconEngine *engine;

    82 

    83     QAtomicInt ref;

    84     int serialNum;

    85     int detach_no;

    86     int engine_version;

    87 

    88     QAtomicInt *v1RefCount;

    89 };

    90 

    91 

    92 struct QPixmapIconEngineEntry

    93 {

    94     QPixmapIconEngineEntry():mode(QIcon::Normal), state(QIcon::Off){}

    95     QPixmapIconEngineEntry(const QPixmap &pm, QIcon::Mode m = QIcon::Normal, QIcon::State s = QIcon::Off)

    96         :pixmap(pm), size(pm.size()), mode(m), state(s){}

    97     QPixmapIconEngineEntry(const QString &file, const QSize &sz = QSize(), QIcon::Mode m = QIcon::Normal, QIcon::State s = QIcon::Off)

    98         :fileName(file), size(sz), mode(m), state(s){}

    99     QPixmap pixmap;

   100     QString fileName;

   101     QSize size;

   102     QIcon::Mode mode;

   103     QIcon::State state;

   104     bool isNull() const {return (fileName.isEmpty() && pixmap.isNull()); }

   105 };

   106 

   107 

   108 

   109 class QPixmapIconEngine : public QIconEngineV2 {

   110 public:

   111     QPixmapIconEngine();

   112     QPixmapIconEngine(const QPixmapIconEngine &);

   113     ~QPixmapIconEngine();

   114     void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state);

   115     QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state);

   116     QPixmapIconEngineEntry *bestMatch(const QSize &size, QIcon::Mode mode, QIcon::State state, bool sizeOnly);

   117     QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state);

   118     void addPixmap(const QPixmap &pixmap, QIcon::Mode mode, QIcon::State state);

   119     void addFile(const QString &fileName, const QSize &size, QIcon::Mode mode, QIcon::State state);

   120 

   121     // v2 functions

   122     QString key() const;

   123     QIconEngineV2 *clone() const;

   124     bool read(QDataStream &in);

   125     bool write(QDataStream &out) const;

   126     void virtual_hook(int id, void *data);

   127 

   128 private:

   129     QPixmapIconEngineEntry *tryMatch(const QSize &size, QIcon::Mode mode, QIcon::State state);

   130     QVector<QPixmapIconEngineEntry> pixmaps;

   131 

   132     friend QDataStream &operator<<(QDataStream &s, const QIcon &icon);

   133     friend class QIconThemeEngine;

   134 };

   135 

   136 QT_END_NAMESPACE

   137 

   138 #endif // QICON_P_H