qinputdevicemanager.cpp

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39 -

40 #include "qinputdevicemanager_p.h" -

41 #include "qinputdevicemanager_p_p.h" -

42 -

43 QT_BEGIN_NAMESPACE -

44 -

45 /*! -

46 \class QInputDeviceManager -

47 \internal -

48 -

49 \brief QInputDeviceManager acts as a communication hub between QtGui and the input handlers. -

50 -

51 On embedded platforms the input handling code is either compiled into the platform -

52 plugin or is loaded dynamically as a generic plugin without any interface. The input -

53 handler in use may also change between each run (e.g. evdevmouse/keyboard/touch -

54 vs. libinput). QWindowSystemInterface is too limiting when Qt (the platform plugin) is -

55 acting as a windowing system, and is one way only. -

56 -

57 QInputDeviceManager solves this by providing a global object that is used to communicate -

58 from the input handlers to the rest of Qt (e.g. the number of connected mice, which may -

59 be important information for the cursor drawing code), and vice-versa (e.g. to indicate -

60 to the input handler that a manual cursor position change was requested by the -

61 application via QCursor::setPos and thus any internal state has to be updated accordingly). -

62 */ -

63 -

64 QInputDeviceManager::QInputDeviceManager(QObject *parent) -

65 : QObject(*new QInputDeviceManagerPrivate, parent) -

66 { -

67 qRegisterMetaType<DeviceType>(); -

}

never executed: end of block

69 -

70 int QInputDeviceManager::deviceCount(DeviceType type) const -

71 { -

72 Q_D(const QInputDeviceManager); -

return d->deviceCount(type);

never executed: return d->deviceCount(type);

74 } -

75 -

76 int QInputDeviceManagerPrivate::deviceCount(QInputDeviceManager::DeviceType type) const -

77 { -

return m_deviceCount.value(type);

never executed: return m_deviceCount.value(type);

79 } -

80 -

81 void QInputDeviceManagerPrivate::setDeviceCount(QInputDeviceManager::DeviceType type, int count) -

82 { -

83 Q_Q(QInputDeviceManager); -

if (m_deviceCount.value(type) != count) {

m_deviceCount....type) != count	Description
TRUE	never evaluated
FALSE	never evaluated

85 m_deviceCount[type] = count; -

86 emit q->deviceListChanged(type); -

}

never executed: end of block

}

never executed: end of block

89 -

90 void QInputDeviceManager::setCursorPos(const QPoint &pos) -

91 { -

92 emit cursorPositionChangeRequested(pos); -

}

never executed: end of block

94 -

95 QT_END_NAMESPACE -

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