4 * Copyright 2006 Develer S.r.l. (http://www.develer.com/)
5 * Copyright 2001 Bernardo Innocenti <bernie@codewiz.org>
6 * This file is part of DevLib - See README.devlib for information.
11 * \author Bernardo Innocenti <bernie@develer.com>
13 * \brief QT-based widget for keyboard emulation (implementation)
19 #include <QtGui/QPainter>
20 #include <QtGui/QPixmap>
21 #include <QtGui/QSizePolicy>
22 #include <QtGui/QLayout>
23 #include <QtGui/QKeyEvent>
24 #include <QtCore/QEvent>
25 #include <QtCore/QSize>
26 #include <QtCore/QRect>
29 EmulKey::EmulKey(EmulKbd *kbd, const char *label, int _keycode, int _row, int _col) :
30 QPushButton(label, kbd),
34 // don't let the widget get focus
35 setFocusPolicy(Qt::NoFocus);
38 connect(this, SIGNAL(pressed()), this, SLOT(keyPressed()));
39 connect(this, SIGNAL(released()), this, SLOT(keyReleased()));
50 * Override standad QButton behaviour: we must also emit the signals.
53 void EmulKey::setDown(bool enable)
55 // let our superclass do everything else
56 QPushButton::setDown(enable);
66 void EmulKey::keyPressed(void)
68 static_cast<EmulKbd *>(parent())->setKey(row, col, true);
73 void EmulKey::keyReleased(void)
75 static_cast<EmulKbd *>(parent())->setKey(row, col, false);
79 EmulKbd::EmulKbd(QWidget *parent, Qt::WFlags f) :
81 layout(new QGridLayout(this)),
84 setFrameStyle(QFrame::Box | QFrame::Sunken);
86 setFocusPolicy(Qt::StrongFocus);
87 frame_width = frameWidth();
97 QSizePolicy EmulKbd::sizePolicy() const
99 return QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
103 void EmulKbd::resizeEvent(QResizeEvent *event)
105 // Let our superclass process the event first
106 QFrame::resizeEvent(event);
110 // handle key presses for all keys in keyboard
111 bool EmulKbd::event(QEvent *_e)
115 case QEvent::KeyPress:
116 case QEvent::KeyRelease:
118 QKeyEvent *e = static_cast<QKeyEvent *>(_e);
119 int keycode = e->key();
122 // ignore repeated keys
123 if (!e->isAutoRepeat())
126 for (QObjectList::const_iterator it(children().begin()); it != children().end(); ++it)
128 // only keys, not other children!
129 if ((*it)->metaObject() == &EmulKey::staticMetaObject)
130 // if ((key = dynamic_cast<EmulKey *>(*it)))
132 key = static_cast<EmulKey *>(*it);
135 if (key->keycode == keycode)
137 // yes, tell key to go down (or up)
138 key->setDown(_e->type() == QEvent::KeyPress);
148 // let superclass process this event
149 return QFrame::event(_e);
151 } // end switch(_e->type())
155 void EmulKbd::addKey(const char *label, int keycode, int row, int col, int matrix_row, int matrix_col)
157 if (matrix_row == -1)
159 if (matrix_col == -1)
162 layout->addWidget(new EmulKey(this, label, keycode, matrix_row, matrix_col), row, col);
167 void EmulKbd::setKey(int /*row*/, int /*col*/, bool /*on*/)
172 void EmulKbd::setRow(int r)
177 int EmulKbd::readCols(void)
183 // FIXME: QLayoutIterator is obsolete in Qt4
184 for(QLayoutIterator it(layout->iterator()); (item = it.current()); ++it)
186 key = static_cast<EmulKey *>(item->widget());
187 if (key->row == active_row)
190 cols |= (1<<key->col);
196 extern "C" void emul_kbdSetRows(int r)
198 emul->emulKbd->setRow(r);
202 extern "C" int emul_kbdReadCols(void)
204 return emul->emulKbd->readCols();
207 #include "emulkbd_moc.cpp"