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39
40#ifndef QICON_H
41#define QICON_H
42
43#include <QtGui/qtguiglobal.h>
44#include <QtCore/qsize.h>
45#include <QtCore/qlist.h>
46#include <QtGui/qpixmap.h>
47
48QT_BEGIN_NAMESPACE
49
50
51class QIconPrivate;
52class QIconEngine;
53class QPainter;
54
55class Q_GUI_EXPORT QIcon
56{
57public:
58 enum Mode { Normal, Disabled, Active, Selected };
59 enum State { On, Off };
60
61 QIcon() noexcept;
62 QIcon(const QPixmap &pixmap);
63 QIcon(const QIcon &other);
64 QIcon(QIcon &&other) noexcept
65 : d(other.d)
66 { other.d = nullptr; }
67 explicit QIcon(const QString &fileName); // file or resource name
68 explicit QIcon(QIconEngine *engine);
69 ~QIcon();
70 QIcon &operator=(const QIcon &other);
71 inline QIcon &operator=(QIcon &&other) noexcept
72 { swap(other); return *this; }
73 inline void swap(QIcon &other) noexcept
74 { qSwap(d, other.d); }
75
76 operator QVariant() const;
77
78 QPixmap pixmap(const QSize &size, Mode mode = Normal, State state = Off) const;
79 inline QPixmap pixmap(int w, int h, Mode mode = Normal, State state = Off) const
80 { return pixmap(QSize(w, h), mode, state); }
81 inline QPixmap pixmap(int extent, Mode mode = Normal, State state = Off) const
82 { return pixmap(QSize(extent, extent), mode, state); }
83 QPixmap pixmap(QWindow *window, const QSize &size, Mode mode = Normal, State state = Off) const;
84
85 QSize actualSize(const QSize &size, Mode mode = Normal, State state = Off) const;
86 QSize actualSize(QWindow *window, const QSize &size, Mode mode = Normal, State state = Off) const;
87
88 QString name() const;
89
90 void paint(QPainter *painter, const QRect &rect, Qt::Alignment alignment = Qt::AlignCenter, Mode mode = Normal, State state = Off) const;
91 inline void paint(QPainter *painter, int x, int y, int w, int h, Qt::Alignment alignment = Qt::AlignCenter, Mode mode = Normal, State state = Off) const
92 { paint(painter, QRect(x, y, w, h), alignment, mode, state); }
93
94 bool isNull() const;
95 bool isDetached() const;
96 void detach();
97
98#if QT_DEPRECATED_SINCE(5, 0)
99 QT_DEPRECATED inline int serialNumber() const { return cacheKey() >> 32; }
100#endif
101 qint64 cacheKey() const;
102
103 void addPixmap(const QPixmap &pixmap, Mode mode = Normal, State state = Off);
104 void addFile(const QString &fileName, const QSize &size = QSize(), Mode mode = Normal, State state = Off);
105
106 QList<QSize> availableSizes(Mode mode = Normal, State state = Off) const;
107
108 void setIsMask(bool isMask);
109 bool isMask() const;
110
111 static QIcon fromTheme(const QString &name);
112 static QIcon fromTheme(const QString &name, const QIcon &fallback);
113 static bool hasThemeIcon(const QString &name);
114
115 static QStringList themeSearchPaths();
116 static void setThemeSearchPaths(const QStringList &searchpath);
117
118 static QStringList fallbackSearchPaths();
119 static void setFallbackSearchPaths(const QStringList &paths);
120
121 static QString themeName();
122 static void setThemeName(const QString &path);
123
124 static QString fallbackThemeName();
125 static void setFallbackThemeName(const QString &name);
126
127 Q_DUMMY_COMPARISON_OPERATOR(QIcon)
128
129private:
130 QIconPrivate *d;
131#if !defined(QT_NO_DATASTREAM)
132 friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QIcon &);
133 friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QIcon &);
134#endif
135
136public:
137 typedef QIconPrivate * DataPtr;
138 inline DataPtr &data_ptr() { return d; }
139};
140
141Q_DECLARE_SHARED(QIcon)
142
143#if !defined(QT_NO_DATASTREAM)
144Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QIcon &);
145Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QIcon &);
146#endif
147
148#ifndef QT_NO_DEBUG_STREAM
149Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QIcon &);
150#endif
151
152Q_GUI_EXPORT QString qt_findAtNxFile(const QString &baseFileName, qreal targetDevicePixelRatio,
153 qreal *sourceDevicePixelRatio = nullptr);
154
155QT_END_NAMESPACE
156
157#endif // QICON_H
158

source code of qtbase/src/gui/image/qicon.h