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40 | ****************************************************************************/ |
41 | |
42 | #ifndef QDESKTOPICON_P_H |
43 | #define QDESKTOPICON_P_H |
44 | |
45 | #ifndef QT_NO_ICON |
46 | // |
47 | // W A R N I N G |
48 | // ------------- |
49 | // |
50 | // This file is not part of the Qt API. It exists purely as an |
51 | // implementation detail. This header file may change from version to |
52 | // version without notice, or even be removed. |
53 | // |
54 | // We mean it. |
55 | // |
56 | |
57 | #include <QtGui/QIcon> |
58 | #include <QtGui/QIconEngine> |
59 | #include <QtGui/QPixmapCache> |
60 | #include <private/qicon_p.h> |
61 | #include <private/qfactoryloader_p.h> |
62 | #include <QtCore/QHash> |
63 | |
64 | QT_BEGIN_NAMESPACE |
65 | |
66 | class QIconLoader; |
67 | |
68 | struct QIconDirInfo |
69 | { |
70 | enum Type { Fixed, Scalable, Threshold }; |
71 | QIconDirInfo(const QString &_path = QString()) : |
72 | path(_path), |
73 | size(0), |
74 | maxSize(0), |
75 | minSize(0), |
76 | threshold(0), |
77 | type(Threshold) {} |
78 | QString path; |
79 | short size; |
80 | short maxSize; |
81 | short minSize; |
82 | short threshold; |
83 | Type type : 4; |
84 | }; |
85 | |
86 | class QIconLoaderEngineEntry |
87 | { |
88 | public: |
89 | virtual ~QIconLoaderEngineEntry() {} |
90 | virtual QPixmap pixmap(const QSize &size, |
91 | QIcon::Mode mode, |
92 | QIcon::State state) = 0; |
93 | QString filename; |
94 | QIconDirInfo dir; |
95 | static int count; |
96 | }; |
97 | |
98 | struct ScalableEntry : public QIconLoaderEngineEntry |
99 | { |
100 | QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); |
101 | QIcon svgIcon; |
102 | }; |
103 | |
104 | struct PixmapEntry : public QIconLoaderEngineEntry |
105 | { |
106 | QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); |
107 | QPixmap basePixmap; |
108 | }; |
109 | |
110 | typedef QList<QIconLoaderEngineEntry*> QThemeIconEntries; |
111 | |
112 | class QIconLoaderEngine : public QIconEngineV2 |
113 | { |
114 | public: |
115 | QIconLoaderEngine(const QString& iconName = QString()); |
116 | ~QIconLoaderEngine(); |
117 | |
118 | void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state); |
119 | QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); |
120 | QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state); |
121 | QIconEngineV2 *clone() const; |
122 | bool read(QDataStream &in); |
123 | bool write(QDataStream &out) const; |
124 | |
125 | private: |
126 | QString key() const; |
127 | bool hasIcon() const; |
128 | void ensureLoaded(); |
129 | void virtual_hook(int id, void *data); |
130 | QIconLoaderEngineEntry *entryForSize(const QSize &size); |
131 | QIconLoaderEngine(const QIconLoaderEngine &other); |
132 | QThemeIconEntries m_entries; |
133 | QString m_iconName; |
134 | uint m_key; |
135 | |
136 | friend class QIconLoader; |
137 | }; |
138 | |
139 | class QIconTheme |
140 | { |
141 | public: |
142 | QIconTheme(const QString &name); |
143 | QIconTheme() : m_valid(false) {} |
144 | QStringList parents() { return m_parents; } |
145 | QList <QIconDirInfo> keyList() { return m_keyList; } |
146 | QString contentDir() { return m_contentDir; } |
147 | bool isValid() { return m_valid; } |
148 | |
149 | private: |
150 | QString m_contentDir; |
151 | QList <QIconDirInfo> m_keyList; |
152 | QStringList m_parents; |
153 | bool m_valid; |
154 | }; |
155 | |
156 | class QIconLoader : public QObject |
157 | { |
158 | public: |
159 | QIconLoader(); |
160 | QThemeIconEntries loadIcon(const QString &iconName) const; |
161 | uint themeKey() const { return m_themeKey; } |
162 | |
163 | QString themeName() const { return m_userTheme.isEmpty() ? m_systemTheme : m_userTheme; } |
164 | void setThemeName(const QString &themeName); |
165 | QIconTheme theme() { return themeList.value(themeName()); } |
166 | void setThemeSearchPath(const QStringList &searchPaths); |
167 | QStringList themeSearchPaths() const; |
168 | QIconDirInfo dirInfo(int dirindex); |
169 | static QIconLoader *instance(); |
170 | void updateSystemTheme(); |
171 | void invalidateKey() { m_themeKey++; } |
172 | void ensureInitialized(); |
173 | |
174 | private: |
175 | QThemeIconEntries findIconHelper(const QString &themeName, |
176 | const QString &iconName, |
177 | QStringList &visited) const; |
178 | uint m_themeKey; |
179 | bool m_supportsSvg; |
180 | bool m_initialized; |
181 | |
182 | mutable QString m_userTheme; |
183 | mutable QString m_systemTheme; |
184 | mutable QStringList m_iconDirs; |
185 | mutable QHash <QString, QIconTheme> themeList; |
186 | }; |
187 | |
188 | QT_END_NAMESPACE |
189 | |
190 | #endif // QDESKTOPICON_P_H |
191 | |
192 | #endif //QT_NO_ICON |
193 | |