mirror of
https://github.com/tumic0/GPXSee.git
synced 2024-10-06 06:43:22 +02:00
Fixed zoom computation.
Code cleanup.
This commit is contained in:
parent
81a9743064
commit
540339bf22
219
src/pathview.cpp
219
src/pathview.cpp
@ -50,6 +50,36 @@ static int scale2zoom(qreal scale)
|
||||
return zoom;
|
||||
}
|
||||
|
||||
qreal mapScale(int zoom)
|
||||
{
|
||||
return ((360.0/(qreal)(1<<zoom))/(qreal)Tile::size());
|
||||
}
|
||||
|
||||
static QRectF qrectf(const QPointF &p1, const QPointF &p2)
|
||||
{
|
||||
return QRectF(QPointF(qMin(p1.x(), p2.x()), qMin(p1.y(), p2.y())),
|
||||
QPointF(qMax(p1.x(), p2.x()), qMax(p1.y(), p2.y())));
|
||||
}
|
||||
|
||||
static void unite(QRectF &rect, const QPointF &p)
|
||||
{
|
||||
if (p.x() < rect.left())
|
||||
rect.setLeft(p.x());
|
||||
if (p.x() > rect.right())
|
||||
rect.setRight(p.x());
|
||||
if (p.y() > rect.bottom())
|
||||
rect.setBottom(p.y());
|
||||
if (p.y() < rect.top())
|
||||
rect.setTop(p.y());
|
||||
}
|
||||
|
||||
static QRectF scaled(const QRectF &rect, qreal factor)
|
||||
{
|
||||
return QRectF(QPointF(rect.left() * factor, rect.top() * factor),
|
||||
QSizeF(rect.width() * factor, rect.height() * factor));
|
||||
}
|
||||
|
||||
|
||||
PathView::PathView(QWidget *parent)
|
||||
: QGraphicsView(parent)
|
||||
{
|
||||
@ -67,7 +97,6 @@ PathView::PathView(QWidget *parent)
|
||||
_mapScale->setZValue(2.0);
|
||||
|
||||
_zoom = ZOOM_MAX;
|
||||
_scale = mapScale(_zoom);
|
||||
_map = 0;
|
||||
_poi = 0;
|
||||
|
||||
@ -100,9 +129,9 @@ PathItem *PathView::addTrack(const Track &track)
|
||||
|
||||
TrackItem *ti = new TrackItem(track);
|
||||
_tracks.append(ti);
|
||||
_zoom = qMin(_zoom, scale2zoom(trackScale()));
|
||||
_scale = mapScale(_zoom);
|
||||
ti->setScale(1.0/_scale);
|
||||
_tr |= ti->path().boundingRect();
|
||||
_zoom = scale2zoom(contentsScale());
|
||||
ti->setScale(1.0/mapScale(_zoom));
|
||||
ti->setColor(_palette.color());
|
||||
ti->setVisible(_showTracks);
|
||||
_scene->addItem(ti);
|
||||
@ -122,9 +151,9 @@ PathItem *PathView::addRoute(const Route &route)
|
||||
|
||||
RouteItem *ri = new RouteItem(route);
|
||||
_routes.append(ri);
|
||||
_zoom = qMin(_zoom, scale2zoom(routeScale()));
|
||||
_scale = mapScale(_zoom);
|
||||
ri->setScale(1.0/_scale);
|
||||
_rr |= ri->path().boundingRect();
|
||||
_zoom = scale2zoom(contentsScale());
|
||||
ri->setScale(1.0/mapScale(_zoom));
|
||||
ri->setColor(_palette.color());
|
||||
ri->setVisible(_showRoutes);
|
||||
ri->showWaypoints(_showRouteWaypoints);
|
||||
@ -139,24 +168,30 @@ PathItem *PathView::addRoute(const Route &route)
|
||||
|
||||
void PathView::addWaypoints(const QList<Waypoint> &waypoints)
|
||||
{
|
||||
qreal scale = mapScale(_zoom);
|
||||
|
||||
for (int i = 0; i < waypoints.count(); i++) {
|
||||
const Waypoint &w = waypoints.at(i);
|
||||
|
||||
WaypointItem *wi = new WaypointItem(w);
|
||||
wi->setScale(1.0/_scale);
|
||||
wi->setScale(1.0/scale);
|
||||
wi->setZValue(1);
|
||||
wi->showLabel(_showWaypointLabels);
|
||||
wi->setVisible(_showWaypoints);
|
||||
_scene->addItem(wi);
|
||||
|
||||
if (!_wr.isNull())
|
||||
unite(_wr, wi->coordinates());
|
||||
else if (i > 1)
|
||||
_wr = qrectf(_waypoints.last()->coordinates(), wi->coordinates());
|
||||
|
||||
_waypoints.append(wi);
|
||||
}
|
||||
|
||||
if (_poi)
|
||||
addPOI(_poi->points(waypoints));
|
||||
|
||||
_zoom = qMin(_zoom, scale2zoom(waypointScale()));
|
||||
_scale = mapScale(_zoom);
|
||||
_zoom = scale2zoom(contentsScale());
|
||||
}
|
||||
|
||||
QList<PathItem *> PathView::loadData(const Data &data)
|
||||
@ -176,137 +211,37 @@ QList<PathItem *> PathView::loadData(const Data &data)
|
||||
|
||||
if ((_tracks.size() + _routes.size() > 1 && _zoom < zoom)
|
||||
|| (_waypoints.size() && _zoom < zoom))
|
||||
rescale(_scale);
|
||||
rescale(_zoom);
|
||||
else
|
||||
updatePOIVisibility();
|
||||
|
||||
QRectF br = trackBoundingRect() | routeBoundingRect()
|
||||
| waypointBoundingRect();
|
||||
QRectF ba = br.adjusted(-Tile::size(), -Tile::size(), Tile::size(),
|
||||
Tile::size());
|
||||
qreal scale = mapScale(_zoom);
|
||||
QRectF br = scaled(_tr | _rr | _wr, 1.0/scale);
|
||||
QRectF ba = br.adjusted(-Tile::size() * scale, -Tile::size() * scale,
|
||||
Tile::size() * scale, Tile::size() * scale);
|
||||
_scene->setSceneRect(ba);
|
||||
centerOn(ba.center());
|
||||
|
||||
_mapScale->setZoom(_zoom, -(br.center().ry() * _scale));
|
||||
_mapScale->setZoom(_zoom, -(br.center().ry() * mapScale(_zoom)));
|
||||
if (_mapScale->scene() != _scene)
|
||||
_scene->addItem(_mapScale);
|
||||
|
||||
return paths;
|
||||
}
|
||||
|
||||
QRectF PathView::trackBoundingRect() const
|
||||
qreal PathView::contentsScale() const
|
||||
{
|
||||
if (_tracks.empty())
|
||||
return QRectF();
|
||||
QRectF br = _tr | _rr | _wr;
|
||||
|
||||
QRectF br = _tracks.at(0)->sceneBoundingRect();
|
||||
for (int i = 1; i < _tracks.size(); i++)
|
||||
br |= _tracks.at(i)->sceneBoundingRect();
|
||||
|
||||
return br;
|
||||
}
|
||||
|
||||
QRectF PathView::routeBoundingRect() const
|
||||
{
|
||||
if (_routes.empty())
|
||||
return QRectF();
|
||||
|
||||
QRectF br = _routes.at(0)->sceneBoundingRect();
|
||||
for (int i = 1; i < _routes.size(); i++)
|
||||
br |= _routes.at(i)->sceneBoundingRect();
|
||||
|
||||
return br;
|
||||
}
|
||||
|
||||
QRectF PathView::waypointBoundingRect() const
|
||||
{
|
||||
qreal bottom, top, left, right;
|
||||
|
||||
if (_waypoints.empty())
|
||||
return QRectF();
|
||||
|
||||
const QPointF &p = _waypoints.at(0)->pos();
|
||||
bottom = p.y();
|
||||
top = p.y();
|
||||
left = p.x();
|
||||
right = p.x();
|
||||
|
||||
for (int i = 1; i < _waypoints.size(); i++) {
|
||||
const QPointF &p = _waypoints.at(i)->pos();
|
||||
bottom = qMax(bottom, p.y());
|
||||
top = qMin(top, p.y());
|
||||
right = qMax(right, p.x());
|
||||
left = qMin(left, p.x());
|
||||
}
|
||||
|
||||
return QRectF(QPointF(left, top), QPointF(right, bottom));
|
||||
}
|
||||
|
||||
qreal PathView::trackScale() const
|
||||
{
|
||||
if (_tracks.empty())
|
||||
if (br.isNull())
|
||||
return mapScale(ZOOM_MAX);
|
||||
|
||||
QRectF br = _tracks.at(0)->path().boundingRect();
|
||||
|
||||
for (int i = 1; i < _tracks.size(); i++)
|
||||
br |= _tracks.at(i)->path().boundingRect();
|
||||
|
||||
QPointF sc(br.width() / (viewport()->width() - MARGIN/2),
|
||||
br.height() / (viewport()->height() - MARGIN/2));
|
||||
|
||||
return qMax(sc.x(), sc.y());
|
||||
}
|
||||
|
||||
qreal PathView::routeScale() const
|
||||
{
|
||||
if (_routes.empty())
|
||||
return mapScale(ZOOM_MAX);
|
||||
|
||||
QRectF br = _routes.at(0)->path().boundingRect();
|
||||
|
||||
for (int i = 1; i < _routes.size(); i++)
|
||||
br |= _routes.at(i)->path().boundingRect();
|
||||
|
||||
QPointF sc(br.width() / (viewport()->width() - MARGIN/2),
|
||||
br.height() / (viewport()->height() - MARGIN/2));
|
||||
|
||||
return qMax(sc.x(), sc.y());
|
||||
}
|
||||
|
||||
qreal PathView::waypointScale() const
|
||||
{
|
||||
qreal bottom, top, left, right;
|
||||
|
||||
if (_waypoints.size() < 2)
|
||||
return mapScale(ZOOM_MAX);
|
||||
|
||||
const QPointF &p = _waypoints.at(0)->coordinates();
|
||||
bottom = p.y();
|
||||
top = p.y();
|
||||
left = p.x();
|
||||
right = p.x();
|
||||
|
||||
for (int i = 1; i < _waypoints.size(); i++) {
|
||||
const QPointF &p = _waypoints.at(i)->coordinates();
|
||||
bottom = qMax(bottom, p.y());
|
||||
top = qMin(top, p.y());
|
||||
right = qMax(right, p.x());
|
||||
left = qMin(left, p.x());
|
||||
}
|
||||
|
||||
QRectF br(QPointF(left, top), QPointF(right, bottom));
|
||||
QPointF sc(br.width() / (viewport()->width() - MARGIN/2),
|
||||
br.height() / (viewport()->height() - MARGIN/2));
|
||||
|
||||
return qMax(sc.x(), sc.y());
|
||||
}
|
||||
|
||||
qreal PathView::mapScale(int zoom) const
|
||||
{
|
||||
return ((360.0/(qreal)(1<<zoom))/(qreal)Tile::size());
|
||||
}
|
||||
|
||||
void PathView::updatePOIVisibility()
|
||||
{
|
||||
QHash<Waypoint, WaypointItem*>::const_iterator it, jt;
|
||||
@ -328,9 +263,10 @@ void PathView::updatePOIVisibility()
|
||||
}
|
||||
}
|
||||
|
||||
void PathView::rescale(qreal scale)
|
||||
void PathView::rescale(int zoom)
|
||||
{
|
||||
_scale = scale;
|
||||
_zoom = zoom;
|
||||
qreal scale = mapScale(zoom);
|
||||
|
||||
for (int i = 0; i < _tracks.size(); i++)
|
||||
_tracks.at(i)->setScale(1.0/scale);
|
||||
@ -385,6 +321,8 @@ void PathView::updatePOI()
|
||||
|
||||
void PathView::addPOI(const QVector<Waypoint> &waypoints)
|
||||
{
|
||||
qreal scale = mapScale(_zoom);
|
||||
|
||||
for (int i = 0; i < waypoints.size(); i++) {
|
||||
const Waypoint &w = waypoints.at(i);
|
||||
|
||||
@ -392,7 +330,7 @@ void PathView::addPOI(const QVector<Waypoint> &waypoints)
|
||||
continue;
|
||||
|
||||
WaypointItem *pi = new WaypointItem(w);
|
||||
pi->setScale(1.0/_scale);
|
||||
pi->setScale(1.0/scale);
|
||||
pi->setZValue(1);
|
||||
pi->showLabel(_showPOILabels);
|
||||
pi->setVisible(_showPOI);
|
||||
@ -440,10 +378,8 @@ void PathView::redraw()
|
||||
|
||||
void PathView::rescale()
|
||||
{
|
||||
_zoom = qMin(qMin(scale2zoom(trackScale()), scale2zoom(routeScale())),
|
||||
scale2zoom(waypointScale()));
|
||||
|
||||
rescale(mapScale(_zoom));
|
||||
_zoom = scale2zoom(contentsScale());
|
||||
rescale(_zoom);
|
||||
_mapScale->setZoom(_zoom);
|
||||
}
|
||||
|
||||
@ -455,21 +391,21 @@ void PathView::zoom(int z, const QPoint &pos)
|
||||
QPoint offset = pos - viewport()->rect().center();
|
||||
QPointF spos = mapToScene(pos);
|
||||
|
||||
qreal scale = _scale;
|
||||
qreal os = mapScale(_zoom);
|
||||
_zoom = z;
|
||||
|
||||
rescale(mapScale(_zoom));
|
||||
QRectF br = trackBoundingRect() | routeBoundingRect()
|
||||
| waypointBoundingRect();
|
||||
QRectF ba = br.adjusted(-Tile::size(), -Tile::size(), Tile::size(),
|
||||
Tile::size());
|
||||
rescale(_zoom);
|
||||
qreal scale = mapScale(_zoom);
|
||||
QRectF br = scaled(_tr | _rr | _wr, 1.0/scale);
|
||||
QRectF ba = br.adjusted(-Tile::size() * scale, -Tile::size() * scale,
|
||||
Tile::size() * scale, Tile::size() * scale);
|
||||
_scene->setSceneRect(ba);
|
||||
|
||||
if (br.width() < viewport()->size().width()
|
||||
&& br.height() < viewport()->size().height())
|
||||
centerOn(br.center());
|
||||
else
|
||||
centerOn((spos * (scale/_scale)) - offset);
|
||||
centerOn((spos * (os/scale)) - offset);
|
||||
|
||||
_mapScale->setZoom(_zoom);
|
||||
|
||||
@ -557,7 +493,7 @@ void PathView::clear()
|
||||
_palette.reset();
|
||||
|
||||
_zoom = ZOOM_MAX;
|
||||
_scale = mapScale(_zoom);
|
||||
_tr = QRectF(); _rr = QRectF(); _wr = QRectF();
|
||||
|
||||
_scene->setSceneRect(QRectF());
|
||||
}
|
||||
@ -642,12 +578,13 @@ void PathView::drawBackground(QPainter *painter, const QRectF &rect)
|
||||
return;
|
||||
}
|
||||
|
||||
QRectF rr(rect.topLeft() * _scale, rect.size());
|
||||
qreal scale = mapScale(_zoom);
|
||||
QRectF rr(rect.topLeft() * scale, rect.size());
|
||||
QPoint tile = mercator2tile(QPointF(rr.topLeft().x(), -rr.topLeft().y()),
|
||||
_zoom);
|
||||
QPointF tm = tile2mercator(tile, _zoom);
|
||||
QPoint tl = mapToScene(mapFromScene(QPointF(tm.x() / _scale,
|
||||
-tm.y() / _scale))).toPoint();
|
||||
QPoint tl = mapToScene(mapFromScene(QPointF(tm.x() / scale,
|
||||
-tm.y() / scale))).toPoint();
|
||||
|
||||
QList<Tile> tiles;
|
||||
for (int i = 0; i <= rr.size().width() / Tile::size() + 1; i++) {
|
||||
@ -673,10 +610,10 @@ void PathView::resizeEvent(QResizeEvent *event)
|
||||
|
||||
rescale();
|
||||
|
||||
QRectF br = trackBoundingRect() | routeBoundingRect()
|
||||
| waypointBoundingRect();
|
||||
QRectF ba = br.adjusted(-Tile::size(), -Tile::size(), Tile::size(),
|
||||
Tile::size());
|
||||
qreal scale = mapScale(_zoom);
|
||||
QRectF br = scaled(_tr | _rr | _wr, 1.0/scale);
|
||||
QRectF ba = br.adjusted(-Tile::size() * scale, -Tile::size() * scale,
|
||||
Tile::size() * scale, Tile::size() * scale);
|
||||
|
||||
if (ba.width() < event->size().width()) {
|
||||
qreal diff = event->size().width() - ba.width();
|
||||
|
||||
@ -65,14 +65,8 @@ private:
|
||||
void loadPOI();
|
||||
void clearPOI();
|
||||
|
||||
QRectF trackBoundingRect() const;
|
||||
QRectF routeBoundingRect() const;
|
||||
QRectF waypointBoundingRect() const;
|
||||
qreal trackScale() const;
|
||||
qreal routeScale() const;
|
||||
qreal waypointScale() const;
|
||||
qreal mapScale(int zoom) const;
|
||||
void rescale(qreal scale);
|
||||
qreal contentsScale() const;
|
||||
void rescale(int zoom);
|
||||
void rescale();
|
||||
void zoom(int z, const QPoint &pos);
|
||||
void updatePOIVisibility();
|
||||
@ -91,14 +85,12 @@ private:
|
||||
QList<WaypointItem*> _waypoints;
|
||||
QHash<Waypoint, WaypointItem*> _pois;
|
||||
|
||||
int _zoom;
|
||||
QRectF _tr, _rr, _wr;
|
||||
|
||||
Map *_map;
|
||||
POI *_poi;
|
||||
|
||||
Palette _palette;
|
||||
|
||||
qreal _scale;
|
||||
int _zoom;
|
||||
|
||||
Units _units;
|
||||
|
||||
bool _showTracks;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user