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39
40#include <qpa/qplatformthemefactory_p.h>
41#include <qpa/qplatformthemeplugin.h>
42#include <QDir>
43#include "private/qfactoryloader_p.h"
44#include "qmutex.h"
45
46#include "qguiapplication.h"
47#include "qdebug.h"
48
49QT_BEGIN_NAMESPACE
50
51Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
52 (QPlatformThemeFactoryInterface_iid, QLatin1String("/platformthemes"), Qt::CaseInsensitive))
53
54#if QT_CONFIG(library)
55Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, directLoader,
56 (QPlatformThemeFactoryInterface_iid, QLatin1String(""), Qt::CaseInsensitive))
57#endif
58
59QPlatformTheme *QPlatformThemeFactory::create(const QString& key, const QString &platformPluginPath)
60{
61 QStringList paramList = key.split(sep: QLatin1Char(':'));
62 const QString platform = paramList.takeFirst().toLower();
63#if QT_CONFIG(library)
64 // Try loading the plugin from platformPluginPath first:
65 if (!platformPluginPath.isEmpty()) {
66 QCoreApplication::addLibraryPath(platformPluginPath);
67 if (QPlatformTheme *ret = qLoadPlugin<QPlatformTheme, QPlatformThemePlugin>(loader: directLoader(), key: platform, args&: paramList))
68 return ret;
69 }
70#else
71 Q_UNUSED(platformPluginPath);
72#endif
73 return qLoadPlugin<QPlatformTheme, QPlatformThemePlugin>(loader: loader(), key: platform, args&: paramList);
74}
75
76/*!
77 Returns the list of valid keys, i.e. the keys this factory can
78 create styles for.
79
80 \sa create()
81*/
82QStringList QPlatformThemeFactory::keys(const QString &platformPluginPath)
83{
84 QStringList list;
85
86#if QT_CONFIG(library)
87 if (!platformPluginPath.isEmpty()) {
88 QCoreApplication::addLibraryPath(platformPluginPath);
89 list += directLoader()->keyMap().values();
90 if (!list.isEmpty()) {
91 const QString postFix = QLatin1String(" (from ")
92 + QDir::toNativeSeparators(pathName: platformPluginPath)
93 + QLatin1Char(')');
94 const QStringList::iterator end = list.end();
95 for (QStringList::iterator it = list.begin(); it != end; ++it)
96 (*it).append(s: postFix);
97 }
98 }
99#else
100 Q_UNUSED(platformPluginPath);
101#endif
102 list += loader()->keyMap().values();
103 return list;
104}
105
106QT_END_NAMESPACE
107

source code of qtbase/src/gui/kernel/qplatformthemefactory.cpp