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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtLocation 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 "qgeomapitemgeometry_p.h"
#include "qdeclarativegeomap_p.h"
#include "qlocationutils_p.h"
#include <QtQuick/QSGGeometry>
#include "qdoublevector2d_p.h"
QT_BEGIN_NAMESPACE
QGeoMapItemGeometry::QGeoMapItemGeometry()
: sourceDirty_(true), screenDirty_(true), clipToViewport_(true), preserveGeometry_(false)
{
}
/*!
\internal
*/
void QGeoMapItemGeometry::translate(const QPointF &offset)
{
for (int i = 0; i < screenVertices_.size(); ++i)
screenVertices_[i] += offset;
firstPointOffset_ += offset;
screenOutline_.translate(offset);
screenBounds_.translate(offset);
}
/*!
\internal
*/
void QGeoMapItemGeometry::allocateAndFill(QSGGeometry *geom) const
{
const QVector<QPointF> &vx = screenVertices_;
const QVector<quint32> &ix = screenIndices_;
if (isIndexed()) {
geom->allocate(vx.size(), ix.size());
if (geom->indexType() == GL_UNSIGNED_SHORT) {
quint16 *its = geom->indexDataAsUShort();
for (int i = 0; i < ix.size(); ++i)
its[i] = ix[i];
} else if (geom->indexType() == GL_UNSIGNED_INT) {
quint32 *its = geom->indexDataAsUInt();
for (int i = 0; i < ix.size(); ++i)
its[i] = ix[i];
}
} else {
geom->allocate(vx.size());
}
QSGGeometry::Point2D *pts = geom->vertexDataAsPoint2D();
for (int i = 0; i < vx.size(); ++i)
pts[i].set(vx[i].x(), vx[i].y());
}
/*!
\internal
*/
QRectF QGeoMapItemGeometry::translateToCommonOrigin(const QList<QGeoMapItemGeometry *> &geoms)
{
QGeoCoordinate origin = geoms.at(0)->origin();
QPainterPath brects;
// first get max offset
QPointF maxOffset = geoms.at(0)->firstPointOffset();
foreach (QGeoMapItemGeometry *g, geoms) {
Q_ASSERT(g->origin() == origin);
QPointF o = g->firstPointOffset();
maxOffset.setX(qMax(o.x(), maxOffset.x()));
maxOffset.setY(qMax(o.y(), maxOffset.y()));
}
// then translate everything
foreach (QGeoMapItemGeometry *g, geoms) {
g->translate(maxOffset - g->firstPointOffset());
brects.addRect(g->sourceBoundingBox());
}
return brects.boundingRect();
}
/*!
\internal
*/
double QGeoMapItemGeometry::geoDistanceToScreenWidth(const QGeoMap &map,
const QGeoCoordinate &fromCoord,
const QGeoCoordinate &toCoord)
{
// Do not wrap around half the globe
Q_ASSERT(!qFuzzyCompare(fromCoord.longitude(), toCoord.longitude()));
QGeoCoordinate mapMid = map.itemPositionToCoordinate(QDoubleVector2D(map.width()/2.0, 0));
double halfGeoDist = toCoord.longitude() - fromCoord.longitude();
if (toCoord.longitude() < fromCoord.longitude())
halfGeoDist += 360;
halfGeoDist /= 2.0;
QGeoCoordinate geoDelta = QGeoCoordinate(0,
QLocationUtils::wrapLong(mapMid.longitude() + halfGeoDist));
QDoubleVector2D halfScreenDist = map.coordinateToItemPosition(geoDelta, false)
- QDoubleVector2D(map.width()/2.0, 0);
return halfScreenDist.x() * 2.0;
}
QT_END_NAMESPACE
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