File indexing completed on 2024-07-14 14:25:32

0001 // SPDX-License-Identifier: LGPL-2.1-or-later
0002 //
0003 // SPDX-FileCopyrightText: 2016 Dennis Nienhüser <nienhueser@kde.org>
0004 //
0005 
0006 #include "TileIterator.h"
0007 
0008 #include "GeoSceneMercatorTileProjection.h"
0009 
0010 #include <QDebug>
0011 
0012 namespace Marble {
0013 
0014 TileIterator::const_iterator const TileIterator::s_end = TileIterator();
0015 
0016 const TileIterator &TileIterator::operator*()
0017 {
0018     return *this;
0019 }
0020 
0021 bool TileIterator::operator!=(const TileIterator::const_iterator &other) const
0022 {
0023     return m_state != other.m_state;
0024 }
0025 
0026 TileIterator::const_iterator &TileIterator::operator++()
0027 {
0028     if (m_state.x() >= m_bounds.right()) {
0029         m_state.setX(m_bounds.left());
0030         if (m_state.y() < m_bounds.bottom()) {
0031             ++m_state.ry();
0032         } else {
0033             *this = s_end;
0034         }
0035     } else {
0036         ++m_state.rx();
0037     }
0038     return *this;
0039 }
0040 
0041 TileIterator::TileIterator(const GeoDataLatLonBox &latLonBox, int zoomLevel)
0042 {
0043     const GeoSceneMercatorTileProjection tileProjection;
0044 
0045     m_bounds = tileProjection.tileIndexes(latLonBox, zoomLevel);
0046 }
0047 
0048 TileIterator::const_iterator TileIterator::begin() const
0049 {
0050     TileIterator iter = *this;
0051     iter.m_state = iter.m_bounds.topLeft();
0052     return iter;
0053 }
0054 
0055 TileIterator::const_iterator TileIterator::end() const
0056 {
0057     return s_end;
0058 }
0059 
0060 int TileIterator::x() const
0061 {
0062     return m_state.x();
0063 }
0064 
0065 int TileIterator::y() const
0066 {
0067     return m_state.y();
0068 }
0069 
0070 int TileIterator::total() const
0071 {
0072     return m_bounds.width() * m_bounds.height();
0073 }
0074 
0075 TileIterator::TileIterator() :
0076     m_state(-1, -1)
0077 {
0078     // nothing to do
0079 }
0080 
0081 }