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39
40
41#include "qguiapplication.h"
42
43#include <private/qobject_p.h>
44#include "qkeymapper_p.h"
45
46#include <private/qguiapplication_p.h>
47#include <qpa/qplatformintegration.h>
48
49QT_BEGIN_NAMESPACE
50
51/*!
52 \class QKeyMapper
53 \since 4.2
54 \internal
55
56 \sa QObject
57*/
58
59/*!
60 Constructs a new key mapper.
61*/
62QKeyMapper::QKeyMapper()
63 : QObject(*new QKeyMapperPrivate, nullptr)
64{
65}
66
67/*!
68 Destroys the key mapper.
69*/
70QKeyMapper::~QKeyMapper()
71{
72}
73
74static QList<int> extractKeyFromEvent(QKeyEvent *e)
75{
76 QList<int> result;
77 if (e->key() && (e->key() != Qt::Key_unknown))
78 result << e->keyCombination().toCombined();
79 else if (!e->text().isEmpty())
80 result << int(e->text().at(0).unicode() + (int)e->modifiers());
81 return result;
82}
83
84QList<int> QKeyMapper::possibleKeys(QKeyEvent *e)
85{
86 return instance()->d_func()->possibleKeys(e);
87}
88
89extern bool qt_sendSpontaneousEvent(QObject *receiver, QEvent *event); // in qapplication_*.cpp
90void QKeyMapper::changeKeyboard()
91{
92 // ## TODO: Support KeyboardLayoutChange on QPA
93#if 0
94 // inform all toplevel widgets of the change
95 QEvent e(QEvent::KeyboardLayoutChange);
96 QWidgetList list = QApplication::topLevelWidgets();
97 for (int i = 0; i < list.size(); ++i) {
98 QWidget *w = list.at(i);
99 qt_sendSpontaneousEvent(w, &e);
100 }
101#endif
102}
103
104Q_GLOBAL_STATIC(QKeyMapper, keymapper)
105/*!
106 Returns the pointer to the single instance of QKeyMapper in the application.
107 If none yet exists, the function ensures that one is created.
108*/
109QKeyMapper *QKeyMapper::instance()
110{
111 return keymapper();
112}
113
114QKeyMapperPrivate *qt_keymapper_private()
115{
116 return QKeyMapper::instance()->d_func();
117}
118
119QKeyMapperPrivate::QKeyMapperPrivate()
120{
121 keyboardInputLocale = QLocale::system();
122 keyboardInputDirection = keyboardInputLocale.textDirection();
123}
124
125QKeyMapperPrivate::~QKeyMapperPrivate()
126{
127}
128
129QList<int> QKeyMapperPrivate::possibleKeys(QKeyEvent *e)
130{
131 QList<int> result = QGuiApplicationPrivate::platformIntegration()->possibleKeys(e);
132 if (!result.isEmpty())
133 return result;
134
135 return extractKeyFromEvent(e);
136}
137
138QT_END_NAMESPACE
139