192 lines
6.2 KiB
C
192 lines
6.2 KiB
C
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/****************************************************************************
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Copyright (c) 2018 GeometryFactory Sarl (France).
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Copyright (C) 2002-2014 Gilles Debunne. All rights reserved.
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This file is part of a fork of the QGLViewer library version 2.7.0.
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http://www.libqglviewer.com - contact@libqglviewer.com
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This file may be used under the terms of the GNU General Public License
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version 3.0 as published by the Free Software Foundation and
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appearing in the LICENSE file included in the packaging of this file.
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This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*****************************************************************************/
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// $URL$
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// $Id$
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// SPDX-License-Identifier: GPL-3.0
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#ifndef QGLVIEWER_DOMUTILS_H
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#define QGLVIEWER_DOMUTILS_H
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#include <qglobal.h>
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#include <QColor>
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#include <QDomElement>
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#include <QString>
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#include <QStringList>
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#include <math.h>
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#ifndef DOXYGEN
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// QDomElement loading with syntax checking.
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class DomUtils {
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private:
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static void warning(const QString &message) {
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qWarning("%s", message.toLatin1().constData());
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}
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public:
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static qreal qrealFromDom(const QDomElement &e, const QString &attribute,
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qreal defValue) {
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qreal value = defValue;
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if (e.hasAttribute(attribute)) {
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const QString s = e.attribute(attribute);
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bool ok;
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value = s.toDouble(&ok);
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if (!ok) {
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warning(QString("'%1' is not a valid qreal syntax for attribute \"%2\" "
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"in initialization of \"%3\". Setting value to %4.")
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.arg(s)
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.arg(attribute)
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.arg(e.tagName())
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.arg(QString::number(defValue)));
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value = defValue;
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}
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} else {
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warning(QString("\"%1\" attribute missing in initialization of \"%2\". "
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"Setting value to %3.")
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.arg(attribute)
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.arg(e.tagName())
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.arg(QString::number(value)));
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}
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#if defined(isnan)
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// The "isnan" method may not be available on all platforms.
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// Find its equivalent or simply remove these two lines
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if (isnan(value))
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warning(
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QString(
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"Warning, attribute \"%1\" initialized to Not a Number in \"%2\"")
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.arg(attribute)
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.arg(e.tagName()));
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#endif
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return value;
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}
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static int intFromDom(const QDomElement &e, const QString &attribute,
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int defValue) {
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int value = defValue;
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if (e.hasAttribute(attribute)) {
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const QString s = e.attribute(attribute);
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bool ok;
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value = s.toInt(&ok);
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if (!ok) {
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warning(
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QString("'%1' is not a valid integer syntax for attribute \"%2\" "
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"in initialization of \"%3\". Setting value to %4.")
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.arg(s)
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.arg(attribute)
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.arg(e.tagName())
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.arg(QString::number(defValue)));
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value = defValue;
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}
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} else {
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warning(QString("\"%1\" attribute missing in initialization of \"%2\". "
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"Setting value to %3.")
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.arg(attribute)
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.arg(e.tagName())
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.arg(QString::number(value)));
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}
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return value;
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}
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static unsigned int uintFromDom(const QDomElement &e,
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const QString &attribute,
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unsigned int defValue) {
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unsigned int value = defValue;
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if (e.hasAttribute(attribute)) {
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const QString s = e.attribute(attribute);
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bool ok;
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value = s.toUInt(&ok);
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if (!ok) {
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warning(
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QString("'%1' is not a valid unsigned integer syntax for attribute "
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"\"%2\" in initialization of \"%3\". Setting value to %4.")
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.arg(s)
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.arg(attribute)
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.arg(e.tagName())
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.arg(QString::number(defValue)));
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value = defValue;
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}
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} else {
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warning(QString("\"%1\" attribute missing in initialization of \"%2\". "
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"Setting value to %3.")
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.arg(attribute)
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.arg(e.tagName())
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.arg(QString::number(value)));
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}
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return value;
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}
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static bool boolFromDom(const QDomElement &e, const QString &attribute,
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bool defValue) {
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bool value = defValue;
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if (e.hasAttribute(attribute)) {
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const QString s = e.attribute(attribute);
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if (s.toLower() == QString("true"))
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value = true;
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else if (s.toLower() == QString("false"))
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value = false;
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else {
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warning(
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QString("'%1' is not a valid boolean syntax for attribute \"%2\" "
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"in initialization of \"%3\". Setting value to %4.")
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.arg(s)
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.arg(attribute)
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.arg(e.tagName())
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.arg(defValue ? "true" : "false"));
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}
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} else {
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warning(QString("\"%1\" attribute missing in initialization of \"%2\". "
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"Setting value to %3.")
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.arg(attribute)
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.arg(e.tagName())
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.arg(value ? "true" : "false"));
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}
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return value;
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}
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static void setBoolAttribute(QDomElement &element, const QString &attribute,
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bool value) {
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element.setAttribute(attribute, (value ? "true" : "false"));
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}
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static QDomElement QColorDomElement(const QColor &color, const QString &name,
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QDomDocument &doc) {
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QDomElement de = doc.createElement(name);
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de.setAttribute("red", QString::number(color.red()));
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de.setAttribute("green", QString::number(color.green()));
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de.setAttribute("blue", QString::number(color.blue()));
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return de;
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}
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static QColor QColorFromDom(const QDomElement &e) {
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int color[3];
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QStringList attribute;
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attribute << "red"
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<< "green"
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<< "blue";
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for (int i = 0; i < attribute.count(); ++i)
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color[i] = DomUtils::intFromDom(e, attribute[i], 0);
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return QColor(color[0], color[1], color[2]);
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}
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};
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#endif // DOXYGEN
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#endif //QGLVIEWER_DOMUTILS_H
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