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39
40 #ifndef QICON_P_H
41 #define QICON_P_H
42
43 //
44 // W A R N I N G
45 // -------------
46 //
47 // This file is not part of the Qt API. It exists purely as an
48 // implementation detail. This header file may change from version to
49 // version without notice, or even be removed.
50 //
51 // We mean it.
52 //
53
54 #include <QtGui/private/qtguiglobal_p.h>
55 #include <QtCore/qsize.h>
56 #include <QtCore/qlist.h>
57 #include <QtGui/qpixmap.h>
58 #include <QtGui/qicon.h>
59 #include <QtGui/qiconengine.h>
60
61 #ifndef QT_NO_ICON
62 QT_BEGIN_NAMESPACE
63
64 class QIconPrivate
65 {
66 public:
67 explicit QIconPrivate(QIconEngine *e);
68
~QIconPrivate()69 ~QIconPrivate() {
70 delete engine;
71 }
72
73 qreal pixmapDevicePixelRatio(qreal displayDevicePixelRatio, const QSize &requestedSize, const QSize &actualSize);
74
75 QIconEngine *engine;
76
77 QAtomicInt ref;
78 int serialNum;
79 int detach_no;
80 bool is_mask;
81 };
82
83
84 struct QPixmapIconEngineEntry
85 {
QPixmapIconEngineEntryQPixmapIconEngineEntry86 QPixmapIconEngineEntry():mode(QIcon::Normal), state(QIcon::Off){}
87 QPixmapIconEngineEntry(const QPixmap &pm, QIcon::Mode m = QIcon::Normal, QIcon::State s = QIcon::Off)
pixmapQPixmapIconEngineEntry88 :pixmap(pm), size(pm.size()), mode(m), state(s){}
89 QPixmapIconEngineEntry(const QString &file, const QSize &sz = QSize(), QIcon::Mode m = QIcon::Normal, QIcon::State s = QIcon::Off)
fileNameQPixmapIconEngineEntry90 :fileName(file), size(sz), mode(m), state(s){}
91 QPixmapIconEngineEntry(const QString &file, const QImage &image, QIcon::Mode m = QIcon::Normal, QIcon::State s = QIcon::Off);
92 QPixmap pixmap;
93 QString fileName;
94 QSize size;
95 QIcon::Mode mode;
96 QIcon::State state;
isNullQPixmapIconEngineEntry97 bool isNull() const {return (fileName.isEmpty() && pixmap.isNull()); }
98 };
99 Q_DECLARE_TYPEINFO(QPixmapIconEngineEntry, Q_MOVABLE_TYPE);
100
QPixmapIconEngineEntry(const QString & file,const QImage & image,QIcon::Mode m,QIcon::State s)101 inline QPixmapIconEngineEntry::QPixmapIconEngineEntry(const QString &file, const QImage &image, QIcon::Mode m, QIcon::State s)
102 : fileName(file), size(image.size()), mode(m), state(s)
103 {
104 pixmap.convertFromImage(image);
105 // Reset the devicePixelRatio. The pixmap may be loaded from a @2x file,
106 // but be used as a 1x pixmap by QIcon.
107 pixmap.setDevicePixelRatio(1.0);
108 }
109
110 class Q_GUI_EXPORT QPixmapIconEngine : public QIconEngine {
111 public:
112 QPixmapIconEngine();
113 QPixmapIconEngine(const QPixmapIconEngine &);
114 ~QPixmapIconEngine();
115 void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state) override;
116 QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
117 QPixmapIconEngineEntry *bestMatch(const QSize &size, QIcon::Mode mode, QIcon::State state, bool sizeOnly);
118 QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
119 void addPixmap(const QPixmap &pixmap, QIcon::Mode mode, QIcon::State state) override;
120 void addFile(const QString &fileName, const QSize &size, QIcon::Mode mode, QIcon::State state) override;
121
122 QString key() const override;
123 QIconEngine *clone() const override;
124 bool read(QDataStream &in) override;
125 bool write(QDataStream &out) const override;
126 void virtual_hook(int id, void *data) override;
127
128 private:
129 QPixmapIconEngineEntry *tryMatch(const QSize &size, QIcon::Mode mode, QIcon::State state);
130 QVector<QPixmapIconEngineEntry> pixmaps;
131
132 friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &s, const QIcon &icon);
133 friend class QIconThemeEngine;
134 };
135
136 QT_END_NAMESPACE
137 #endif //QT_NO_ICON
138 #endif // QICON_P_H
139