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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "q3dsbehavior_p.h"
#include "q3dsutils_p.h"
#include "q3dslogging_p.h"
#include "q3dsabstractxmlparser_p.h"
#include <QFile>
QT_BEGIN_NAMESPACE
class BehaviorMetaDataParser : public Q3DSAbstractXmlParser
{
public:
BehaviorMetaDataParser(const QString &data);
bool parse();
const QMap<QString, Q3DSBehavior::Property> &properties() const { return m_properties; }
const QMap<QString, Q3DSBehavior::Handler> &handlers() const { return m_handlers; }
private:
void registerProperty(const QXmlStreamAttributes &attrs);
void registerHandler(const QXmlStreamAttributes &attrs);
QString m_data;
QMap<QString, Q3DSBehavior::Property> m_properties;
QMap<QString, Q3DSBehavior::Handler> m_handlers;
};
BehaviorMetaDataParser::BehaviorMetaDataParser(const QString &data)
{
setSourceData(data.toUtf8());
}
bool BehaviorMetaDataParser::parse()
{
QXmlStreamReader *r = reader();
if (r->readNextStartElement()) {
if (r->name() == QStringLiteral("BehaviorMeta")) {
while (r->readNextStartElement()) {
if (r->name() == QStringLiteral("Property"))
registerProperty(r->attributes());
else if (r->name() == QStringLiteral("Handler"))
registerHandler(r->attributes());
r->skipCurrentElement();
}
} else {
r->raiseError(QObject::tr("Not a BehaviorMeta document"));
}
}
if (r->hasError()) {
Q3DSUtils::showMessage(readerErrorString());
return false;
}
return true;
}
void BehaviorMetaDataParser::registerProperty(const QXmlStreamAttributes &attrs)
{
Q3DSBehavior::Property p;
p.name = attrs.value(QLatin1String("name")).toString();
p.formalName = attrs.value(QLatin1String("formalName")).toString();
Q3DS::convertToPropertyType(attrs.value(QLatin1String("type")), &p.type, nullptr, "property type", reader());
p.defaultValue = attrs.value(QLatin1String("default")).toString();
p.publishLevel = attrs.value(QLatin1String("publishLevel")).toString();
p.description = attrs.value(QLatin1String("description")).toString();
m_properties.insert(p.name, p);
}
void BehaviorMetaDataParser::registerHandler(const QXmlStreamAttributes &attrs)
{
Q3DSBehavior::Handler h;
h.name = attrs.value(QLatin1String("name")).toString();
h.formalName = attrs.value(QLatin1String("formalName")).toString();
h.category = attrs.value(QLatin1String("category")).toString();
h.description = attrs.value(QLatin1String("description")).toString();
m_handlers.insert(h.name, h);
}
Q3DSBehavior::Q3DSBehavior()
{
}
bool Q3DSBehavior::isNull() const
{
return m_qmlCode.isEmpty();
}
Q3DSBehavior Q3DSBehaviorParser::parse(const QString &filename, bool *ok)
{
if (ok)
*ok = false;
QFile f(filename);
if (!f.open(QIODevice::ReadOnly | QIODevice::Text)) {
Q3DSUtils::showMessage(QObject::tr("Failed to open %1").arg(filename));
return Q3DSBehavior();
}
QString contents = QString::fromUtf8(f.readAll());
if (contents.isEmpty())
return Q3DSBehavior();
Q3DSBehavior behavior;
behavior.m_qmlSourceUrl = QUrl::fromLocalFile(filename);
// Find the metadata looking like this:
// /*[[
// <Property name="cameraTarget" formalName="Camera Target" type="ObjectRef" default="Scene.Layer.Camera" description="Object in scene the camera should look at" />
// <Property name="startImmediately" formalName="Start Immediately?" type="Boolean" default="True" publishLevel="Advanced" description="Start immediately, or wait for the Enable action to be called?" />
//
// <Handler name="start" formalName="Start" category="CameraLookAt" description="Begin looking the target" />
// <Handler name="stop" formalName="Stop" category="CameraLookAt" description="Stop looking the target" />
// ]]*/
const int metaStartPos = contents.indexOf(QLatin1String("/*[["));
if (metaStartPos >= 0) {
const int metaEndPos = contents.indexOf(QLatin1String("]]*/"), metaStartPos);
if (metaEndPos > metaStartPos) {
const QString prefix = QLatin1String("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n<BehaviorMeta>\n");
const QString suffix = QLatin1String("</BehaviorMeta>");
const QString metadata = prefix + contents.mid(metaStartPos + 4, metaEndPos - metaStartPos - 4) + suffix;
BehaviorMetaDataParser parser(metadata);
if (parser.parse()) {
behavior.m_properties = parser.properties();
behavior.m_handlers = parser.handlers();
}
}
}
if (contents.indexOf(QLatin1String("\nimport QtQuick 2.")) < 0) {
// As a workaround for not getting QtQuick imported implicitly (unlike in
// 3DS1), insert "import QtQuick 2.0" before the first import (which is likely
// to be QtStudio3D.Behavior)
const QString quickImport = QLatin1String("import QtQuick 2.0\n");
const int firstImportIdx = contents.indexOf(QLatin1String("\nimport "));
if (firstImportIdx >= 0) {
qCDebug(lcUip, "Inserting import QtQuick 2.0 statement into %s", qPrintable(filename));
contents.insert(firstImportIdx + 1, quickImport);
}
}
behavior.m_qmlCode = contents;
if (ok)
*ok = true;
return behavior;
}
QT_END_NAMESPACE
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