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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qkeyboardinput.h"
#include "qkeyboardinput_p.h"
#include "qkeyboardcontroller.h"
#include <Qt3DCore/qbackendscenepropertychange.h>
QT_BEGIN_NAMESPACE
namespace Qt3D {
/*!
\class Qt3D::QKeyboardInputPrivate
\internal
*/
QKeyboardInputPrivate::QKeyboardInputPrivate()
: QComponentPrivate()
, m_controller(Q_NULLPTR)
, m_focus(false)
{
m_shareable = false;
}
/*!
Constructs a new QKeyboardInput instance with parent \a parent.
*/
QKeyboardInput::QKeyboardInput(QNode *parent)
: QComponent(*new QKeyboardInputPrivate, parent)
{
}
/*! \internal */
QKeyboardInput::QKeyboardInput(QKeyboardInputPrivate &dd, QNode *parent)
: QComponent(dd, parent)
{
}
void QKeyboardInput::copy(const QNode *ref)
{
QComponent::copy(ref);
const QKeyboardInput *input = static_cast<const QKeyboardInput *>(ref);
if (input->d_func()->m_controller != Q_NULLPTR)
setController(qobject_cast<QKeyboardController *>(QNode::clone(input->d_func()->m_controller)));
}
// SigMap and the sigMap table are taken from QQ2 QQuickKeysAttached
struct SigMap {
int key;
const char *sig;
};
const SigMap sigMap[] = {
{ Qt::Key_Left, "leftPressed" },
{ Qt::Key_Right, "rightPressed" },
{ Qt::Key_Up, "upPressed" },
{ Qt::Key_Down, "downPressed" },
{ Qt::Key_Tab, "tabPressed" },
{ Qt::Key_Backtab, "backtabPressed" },
{ Qt::Key_Asterisk, "asteriskPressed" },
{ Qt::Key_NumberSign, "numberSignPressed" },
{ Qt::Key_Escape, "escapePressed" },
{ Qt::Key_Return, "returnPressed" },
{ Qt::Key_Enter, "enterPressed" },
{ Qt::Key_Delete, "deletePressed" },
{ Qt::Key_Space, "spacePressed" },
{ Qt::Key_Back, "backPressed" },
{ Qt::Key_Cancel, "cancelPressed" },
{ Qt::Key_Select, "selectPressed" },
{ Qt::Key_Yes, "yesPressed" },
{ Qt::Key_No, "noPressed" },
{ Qt::Key_Context1, "context1Pressed" },
{ Qt::Key_Context2, "context2Pressed" },
{ Qt::Key_Context3, "context3Pressed" },
{ Qt::Key_Context4, "context4Pressed" },
{ Qt::Key_Call, "callPressed" },
{ Qt::Key_Hangup, "hangupPressed" },
{ Qt::Key_Flip, "flipPressed" },
{ Qt::Key_Menu, "menuPressed" },
{ Qt::Key_VolumeUp, "volumeUpPressed" },
{ Qt::Key_VolumeDown, "volumeDownPressed" },
{ 0, 0 }
};
const QByteArray keyToSignal(int key)
{
QByteArray keySignal;
if (key >= Qt::Key_0 && key <= Qt::Key_9) {
keySignal = "digit0Pressed";
keySignal[5] = '0' + (key - Qt::Key_0);
} else {
int i = 0;
while (sigMap[i].key && sigMap[i].key != key)
++i;
keySignal = sigMap[i].sig;
}
return keySignal;
}
void QKeyboardInput::sceneChangeEvent(const QSceneChangePtr &change)
{
QBackendScenePropertyChangePtr e = qSharedPointerCast<QBackendScenePropertyChange>(change);
if (e->type() == NodeUpdated) {
if (e->propertyName() == QByteArrayLiteral("focus")) {
bool block = blockNotifications(true);
setFocus(e->value().toBool());
blockNotifications(block);
} else if (e->propertyName() == QByteArrayLiteral("event")) {
Q3DKeyEventPtr ev = e->value().value<Q3DKeyEventPtr>();
keyEvent(ev.data());
}
}
}
void QKeyboardInput::keyEvent(Q3DKeyEvent *event)
{
if (event->type() == QEvent::KeyPress) {
emit pressed(event);
QByteArray keySignal = keyToSignal(event->key());
if (!keySignal.isEmpty()) {
keySignal += "(Q3DKeyEvent*)";
// TO DO: Finding if the signal is connected to anything before doing the invocation
// could be an improvement
// That's what QQ2 does but since it accesses QML private classes to do so, that may not be
// applicable in our case
int idx = QKeyboardInput::staticMetaObject.indexOfSignal(keySignal);
metaObject()->method(idx).invoke(this, Qt::DirectConnection, Q_ARG(Q3DKeyEvent *, event));
}
} else if (event->type() == QEvent::KeyRelease) {
emit released(event);
}
}
/*!
Sets the keyboard controller to \a controller. Without a valid controller,
the QKeyboardInput won't receive any event.
*/
void QKeyboardInput::setController(QKeyboardController *controller)
{
Q_D(QKeyboardInput);
if (d->m_controller != controller) {
if (controller && !controller->parent())
controller->setParent(this);
d->m_controller = controller;
emit controllerChanged();
}
}
/*!
\returns the current keyboard controller.
*/
QKeyboardController *QKeyboardInput::controller() const
{
Q_D(const QKeyboardInput);
return d->m_controller;
}
/*!
\returns the current focus.
*/
bool QKeyboardInput::focus() const
{
Q_D(const QKeyboardInput);
return d->m_focus;
}
/*!
Sets the focus to \a focus. If focus is not currently set to true, this component will receive keyboard focus.
*/
void QKeyboardInput::setFocus(bool focus)
{
Q_D(QKeyboardInput);
if (d->m_focus != focus) {
d->m_focus = focus;
emit focusChanged();
}
}
} // Qt3D
QT_END_NAMESPACE
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