1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QICONLOADER_P_H
#define QICONLOADER_P_H
#include <QtGui/private/qtguiglobal_p.h>
#ifndef QT_NO_ICON
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/QIcon>
#include <QtGui/QIconEngine>
#include <QtGui/QPixmapCache>
#include <private/qicon_p.h>
#include <private/qiconengine_p.h>
#include <private/qfactoryloader_p.h>
#include <QtCore/QHash>
#include <QtCore/QList>
#include <QtCore/QTypeInfo>
#include <vector>
#include <memory>
QT_BEGIN_NAMESPACE
class QIconLoader;
struct QIconDirInfo
{
enum Type { Fixed, Scalable, Threshold, Fallback };
enum Context { UnknownContext, Applications, MimeTypes };
QIconDirInfo(const QString &_path = QString()) :
path(_path),
size(0),
maxSize(0),
minSize(0),
threshold(0),
scale(1),
type(Threshold),
context(UnknownContext) {}
QString path;
short size;
short maxSize;
short minSize;
short threshold;
short scale;
Type type;
Context context;
};
Q_DECLARE_TYPEINFO(QIconDirInfo, Q_RELOCATABLE_TYPE);
class QIconLoaderEngineEntry
{
public:
virtual ~QIconLoaderEngineEntry() {}
virtual QPixmap pixmap(const QSize &size,
QIcon::Mode mode,
QIcon::State state) = 0;
QString filename;
QIconDirInfo dir;
};
struct ScalableEntry : public QIconLoaderEngineEntry
{
QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
QIcon svgIcon;
};
struct PixmapEntry : public QIconLoaderEngineEntry
{
QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
QPixmap basePixmap;
};
using QThemeIconEntries = std::vector<std::unique_ptr<QIconLoaderEngineEntry>>;
struct QThemeIconInfo
{
QThemeIconEntries entries;
QString iconName;
};
class QThemeIconEngine : public QProxyIconEngine
{
public:
QThemeIconEngine(const QString& iconName = QString());
QIconEngine *clone() const override;
bool read(QDataStream &in) override;
bool write(QDataStream &out) const override;
protected:
QIconEngine *proxiedEngine() const override;
private:
QThemeIconEngine(const QThemeIconEngine &other);
QString key() const override;
QString m_iconName;
mutable uint m_themeKey = 0;
mutable std::unique_ptr<QIconEngine> m_proxiedEngine;
};
class QIconLoaderEngine : public QIconEngine
{
public:
QIconLoaderEngine(const QString& iconName = QString());
~QIconLoaderEngine();
void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state) override;
QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state) override;
QIconEngine *clone() const override;
QString iconName() override;
bool isNull() override;
QPixmap scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State state, qreal scale) override;
QList<QSize> availableSizes(QIcon::Mode mode, QIcon::State state) override;
Q_GUI_EXPORT static QIconLoaderEngineEntry *entryForSize(const QThemeIconInfo &info, const QSize &size, int scale = 1);
private:
Q_DISABLE_COPY(QIconLoaderEngine)
QString key() const override;
bool hasIcon() const;
QString m_iconName;
QThemeIconInfo m_info;
friend class QIconLoader;
};
class QIconCacheGtkReader;
class QIconTheme
{
public:
QIconTheme(const QString &name);
QIconTheme() : m_valid(false) {}
QStringList parents() const;
QList<QIconDirInfo> keyList() { return m_keyList; }
QStringList contentDirs() { return m_contentDirs; }
bool isValid() { return m_valid; }
private:
QStringList m_contentDirs;
QList<QIconDirInfo> m_keyList;
QStringList m_parents;
bool m_valid;
public:
QList<QSharedPointer<QIconCacheGtkReader>> m_gtkCaches;
};
class Q_GUI_EXPORT QIconLoader
{
public:
QIconLoader();
QThemeIconInfo loadIcon(const QString &iconName) const;
uint themeKey() const { return m_themeKey; }
QString themeName() const;
void setThemeName(const QString &themeName);
QString fallbackThemeName() const;
void setFallbackThemeName(const QString &themeName);
QIconTheme theme() { return themeList.value(themeName()); }
void setThemeSearchPath(const QStringList &searchPaths);
QStringList themeSearchPaths() const;
void setFallbackSearchPaths(const QStringList &searchPaths);
QStringList fallbackSearchPaths() const;
QIconDirInfo dirInfo(int dirindex);
static QIconLoader *instance();
void updateSystemTheme();
void invalidateKey();
void ensureInitialized();
bool hasUserTheme() const { return !m_userTheme.isEmpty(); }
QIconEngine *iconEngine(const QString &iconName) const;
private:
enum DashRule { FallBack, NoFallBack };
QThemeIconInfo findIconHelper(const QString &themeName,
const QString &iconName,
QStringList &visited,
DashRule rule) const;
QThemeIconInfo lookupFallbackIcon(const QString &iconName) const;
uint m_themeKey;
bool m_supportsSvg;
bool m_initialized;
mutable QString m_userTheme;
mutable QString m_userFallbackTheme;
mutable QString m_systemTheme;
mutable QStringList m_iconDirs;
mutable QHash <QString, QIconTheme> themeList;
mutable QStringList m_fallbackDirs;
mutable QString m_iconName;
};
QT_END_NAMESPACE
#endif // QT_NO_ICON
#endif // QICONLOADER_P_H
|
