Qt 4.8
qplatformintegrationfactory_qpa.cpp
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41 
43 #include <QPlatformIntegrationPlugin>
44 #include "private/qfactoryloader_p.h"
45 #include "qmutex.h"
46 
47 #include "qapplication.h"
48 #include "qdebug.h"
49 
51 
52 #if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
57 #endif
58 
60 {
61  QPlatformIntegration *ret = 0;
62  QStringList paramList = key.split(QLatin1Char(':'));
63  QString platform = paramList.takeFirst().toLower();
64 
65 #if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
66  // Try loading the plugin from platformPluginPath first:
67  if (!platformPluginPath.isEmpty()) {
68  QCoreApplication::addLibraryPath(platformPluginPath);
70  qobject_cast<QPlatformIntegrationFactoryInterface*>(directLoader()->instance(platform)))
71  ret = factory->create(key, paramList);
72 
73  if (ret)
74  return ret;
75  }
76  if (QPlatformIntegrationFactoryInterface *factory = qobject_cast<QPlatformIntegrationFactoryInterface*>(loader()->instance(platform)))
77  ret = factory->create(platform, paramList);
78 #endif
79 
80  return ret;
81 }
82 
90 {
91 #if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)
92  QStringList list;
93 
94  if (!platformPluginPath.isEmpty()) {
95  QCoreApplication::addLibraryPath(platformPluginPath);
96  foreach (const QString &key, directLoader()->keys()) {
97  list += key + QString(QLatin1String(" (from %1)")).arg(platformPluginPath);
98  }
99  }
100 
101  list += loader()->keys();
102 #else
103  QStringList list;
104 #endif
105  return list;
106 }
107 
109 
static QStringList keys(const QString &platformPluginPath=QString())
Returns the list of valid keys, i.e.
QLatin1String("")
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
static void addLibraryPath(const QString &)
Prepends path to the beginning of the library path list, ensuring that it is searched for libraries f...
The QString class provides a Unicode character string.
Definition: qstring.h:83
QPlatformIntegrationFactoryInterface_iid
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
T takeFirst()
Removes the first item in the list and returns it.
Definition: qlist.h:489
bool isEmpty() const
Returns true if the string has no characters; otherwise returns false.
Definition: qstring.h:704
The QStringList class provides a list of strings.
Definition: qstringlist.h:66
The QLatin1String class provides a thin wrapper around an US-ASCII/Latin-1 encoded string literal...
Definition: qstring.h:654
static QPlatformIntegration * create(const QString &key, const QString &platformPluginPath=QString())
The QPlatformIntegration class is the entry for WindowSystem specific functionality.
QString arg(qlonglong a, int fieldwidth=0, int base=10, const QChar &fillChar=QLatin1Char(' ')) const Q_REQUIRED_RESULT
Definition: qstring.cpp:7186
int key
QString toLower() const Q_REQUIRED_RESULT
Returns a lowercase copy of the string.
Definition: qstring.cpp:5389
Definition: qnamespace.h:54
Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,(QPlatformIntegrationFactoryInterface_iid, QLatin1String("/platforms"), Qt::CaseInsensitive)) Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader
QStringList split(const QString &sep, SplitBehavior behavior=KeepEmptyParts, Qt::CaseSensitivity cs=Qt::CaseSensitive) const Q_REQUIRED_RESULT
Splits the string into substrings wherever sep occurs, and returns the list of those strings...
Definition: qstring.cpp:6526
The QLatin1Char class provides an 8-bit ASCII/Latin-1 character.
Definition: qchar.h:55