qinputdevicemanager.cpp

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6 ** This file is part of the QtGui module of the Qt Toolkit. -

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33 -

34 #include "qinputdevicemanager_p.h" -

35 #include "qinputdevicemanager_p_p.h" -

36 -

37 QT_BEGIN_NAMESPACE -

38 -

39 /*! -

40 \class QInputDeviceManager -

41 \internal -

42 -

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

44 -

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

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

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

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

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

50 -

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

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

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

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

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

56 */ -

57 -

58 QInputDeviceManager::QInputDeviceManager(QObject *parent) -

59 : QObject(*new QInputDeviceManagerPrivate, parent) -

60 { -

61 qRegisterMetaType<DeviceType>(); -

}

never executed: end of block

63 -

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

65 { -

66 Q_D(const QInputDeviceManager); -

return d->deviceCount(type);

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

68 } -

69 -

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

71 { -

return m_deviceCount.value(type);

never executed: return m_deviceCount.value(type);

73 } -

74 -

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

76 { -

77 Q_Q(QInputDeviceManager); -

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

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

79 m_deviceCount[type] = count; -

80 emit q->deviceListChanged(type); -

}

never executed: end of block

}

never executed: end of block

83 -

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

85 { -

86 emit cursorPositionChangeRequested(pos); -

}

never executed: end of block

88 -

89 QT_END_NAMESPACE -

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