Remove undocumented embedded examples

Task-number: QTBUG-119117
Change-Id: I7fd104742771e2ce6d4ad7afd66e2beca3b4f672
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

1 files changed, 0 insertions, 164 deletions

diff --git a/examples/embedded/lightmaps/slippymap.cpp b/examples/embedded/lightmaps/slippymap.cpp
deleted file mode 100644
index 76ac80bfaa..0000000000
--- a/examples/embedded/lightmaps/slippymap.cpp
+++ /dev/null
@@ -1,164 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#include <QtWidgets>
-#include <QtNetwork>
-#include "slippymap.h"
-#include "qmath.h"
-
-// tile size in pixels
-const int tdim = 256;
-
-QPointF tileForCoordinate(qreal lat, qreal lng, int zoom)
-{
-    qreal radianLat = qDegreesToRadians(lat);
-    qreal zn = static_cast<qreal>(1 << zoom);
-    qreal tx = (lng + 180.0) / 360.0;
-    qreal ty = 0.5 - log(tan(radianLat) + 1.0 / cos(radianLat)) / M_PI / 2.0;
-    return QPointF(tx * zn, ty * zn);
-}
-
-qreal longitudeFromTile(qreal tx, int zoom)
-{
-    qreal zn = static_cast<qreal>(1 << zoom);
-    qreal lat = tx / zn * 360.0 - 180.0;
-    return lat;
-}
-
-qreal latitudeFromTile(qreal ty, int zoom)
-{
-    qreal zn = static_cast<qreal>(1 << zoom);
-    qreal n = M_PI - 2 * M_PI * ty / zn;
-    return qRadiansToDegrees(atan(sinh(n)));
-}
-
-
-SlippyMap::SlippyMap(QObject *parent)
-    : QObject(parent), width(400), height(300), zoom(15),
-      latitude(59.9138204), longitude(10.7387413)
-{
-    m_emptyTile = QPixmap(tdim, tdim);
-    m_emptyTile.fill(Qt::lightGray);
-
-    QNetworkDiskCache *cache = new QNetworkDiskCache;
-    cache->setCacheDirectory(QStandardPaths::writableLocation(QStandardPaths::CacheLocation));
-    m_manager.setCache(cache);
-    connect(&m_manager, SIGNAL(finished(QNetworkReply*)),
-            this, SLOT(handleNetworkData(QNetworkReply*)));
-}
-
-void SlippyMap::invalidate()
-{
-    if (width <= 0 || height <= 0)
-        return;
-
-    QPointF ct = tileForCoordinate(latitude, longitude, zoom);
-    qreal tx = ct.x();
-    qreal ty = ct.y();
-
-    // top-left corner of the center tile
-    int xp = width / 2 - (tx - floor(tx)) * tdim;
-    int yp = height / 2 - (ty - floor(ty)) * tdim;
-
-    // first tile vertical and horizontal
-    int xa = (xp + tdim - 1) / tdim;
-    int ya = (yp + tdim - 1) / tdim;
-    int xs = static_cast<int>(tx) - xa;
-    int ys = static_cast<int>(ty) - ya;
-
-    // offset for top-left tile
-    m_offset = QPoint(xp - xa * tdim, yp - ya * tdim);
-
-    // last tile vertical and horizontal
-    int xe = static_cast<int>(tx) + (width - xp - 1) / tdim;
-    int ye = static_cast<int>(ty) + (height - yp - 1) / tdim;
-
-    // build a rect
-    m_tilesRect = QRect(xs, ys, xe - xs + 1, ye - ys + 1);
-
-    if (m_url.isEmpty())
-        download();
-
-    emit updated(QRect(0, 0, width, height));
-}
-
-void SlippyMap::render(QPainter *p, const QRect &rect)
-{
-    for (int x = 0; x <= m_tilesRect.width(); ++x)
-        for (int y = 0; y <= m_tilesRect.height(); ++y) {
-            QPoint tp(x + m_tilesRect.left(), y + m_tilesRect.top());
-            QRect box = tileRect(tp);
-            if (rect.intersects(box)) {
-                if (m_tilePixmaps.contains(tp))
-                    p->drawPixmap(box, m_tilePixmaps.value(tp));
-                else
-                    p->drawPixmap(box, m_emptyTile);
-            }
-        }
-}
-
-void SlippyMap::pan(const QPoint &delta)
-{
-    QPointF dx = QPointF(delta) / qreal(tdim);
-    QPointF center = tileForCoordinate(latitude, longitude, zoom) - dx;
-    latitude = latitudeFromTile(center.y(), zoom);
-    longitude = longitudeFromTile(center.x(), zoom);
-    invalidate();
-}
-
-void SlippyMap::handleNetworkData(QNetworkReply *reply)
-{
-    QImage img;
-    QPoint tp = reply->request().attribute(QNetworkRequest::User).toPoint();
-    if (!reply->error())
-        if (!img.load(reply, 0))
-            img = QImage();
-    reply->deleteLater();
-    m_tilePixmaps[tp] = QPixmap::fromImage(img);
-    if (img.isNull())
-        m_tilePixmaps[tp] = m_emptyTile;
-    emit updated(tileRect(tp));
-
-    // purge unused spaces
-    const QRect bound = m_tilesRect.adjusted(-2, -2, 2, 2);
-    for (auto it = m_tilePixmaps.keyBegin(); it != m_tilePixmaps.keyEnd(); ++it) {
-        const QPoint &tp = *it;
-        if (!bound.contains(tp))
-            m_tilePixmaps.remove(tp);
-    }
-
-    download();
-}
-
-void SlippyMap::download()
-{
-    QPoint grab(0, 0);
-    for (int x = 0; x <= m_tilesRect.width(); ++x)
-        for (int y = 0; y <= m_tilesRect.height(); ++y) {
-            QPoint tp = m_tilesRect.topLeft() + QPoint(x, y);
-            if (!m_tilePixmaps.contains(tp)) {
-                grab = tp;
-                break;
-            }
-        }
-    if (grab == QPoint(0, 0)) {
-        m_url = QUrl();
-        return;
-    }
-
-    QString path = "http://tile.openstreetmap.org/%1/%2/%3.png";
-    m_url = QUrl(path.arg(zoom).arg(grab.x()).arg(grab.y()));
-    QNetworkRequest request;
-    request.setUrl(m_url);
-    request.setRawHeader("User-Agent", "The Qt Company (Qt) Graphics Dojo 1.0");
-    request.setAttribute(QNetworkRequest::User, QVariant(grab));
-    m_manager.get(request);
-}
-
-QRect SlippyMap::tileRect(const QPoint &tp)
-{
-    QPoint t = tp - m_tilesRect.topLeft();
-    int x = t.x() * tdim + m_offset.x();
-    int y = t.y() * tdim + m_offset.y();
-    return QRect(x, y, tdim, tdim);
-}