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Unified point and areal labels processing

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This commit is contained in:
Martin Tůma 2024-11-19 09:40:26 +01:00
parent 7c59998f96
commit 62651666e1
4 changed files with 91 additions and 113 deletions
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2
src/map/mapsforge/mapdata.cpp
View File

@ -613,8 +613,8 @@ bool MapData::readPaths(const VectorTile *tile, int zoom, QList<Path> *list)
paths.reserve(paths[zoom - info.min]);
for (unsigned i = 0; i < paths[zoom - info.min]; i++) {
Path p;
qint32 lon = 0, lat = 0;
Path p(subfile.pos());
if (!(subfile.readVUInt32(unused) && subfile.readUInt16(bitmap)
&& subfile.readByte(sb)))

3
src/map/mapsforge/mapdata.h
View File

@ -46,6 +46,9 @@ public:
};
struct Path {
Path(quint64 id) : id(id) {}
quint64 id;
Polygon poly;
QVector<Tag> tags;
Coordinates labelPos;

151
src/map/mapsforge/rastertile.cpp
View File

@ -16,9 +16,10 @@ using namespace Mapsforge;
static double LIMIT = cos(deg2rad(170));
static bool rectNearPolygon(const QPainterPath &path, const QRectF &rect)
static bool rectNearPolygon(const QRectF &tileRect, const QPainterPath &path,
const QRectF &rect)
{
return (path.boundingRect().contains(rect)
return ((tileRect.contains(rect) || path.boundingRect().contains(rect))
&& (path.contains(rect.topLeft()) || path.contains(rect.topRight())
|| path.contains(rect.bottomLeft()) || path.contains(rect.bottomRight())));
}
@ -100,12 +101,14 @@ static QPainterPath parallelPath(const QPainterPath &p, double dy)
return h;
}
void RasterTile::processPointLabels(const QList<MapData::Point> &points,
QList<TextItem*> &textItems) const
void RasterTile::processLabels(const QList<MapData::Point> &points,
const QVector<PainterPath> &paths, QList<TextItem*> &textItems) const
{
QList<const Style::TextRender*> labels(_style->pointLabels(_zoom));
QList<const Style::Symbol*> symbols(_style->pointSymbols(_zoom));
QList<PointText> items;
QList<Label> items;
QList<const Style::TextRender*> pointLabels(_style->pointLabels(_zoom));
QList<const Style::Symbol*> pointSymbols(_style->pointSymbols(_zoom));
QList<const Style::TextRender*> areaLabels(_style->areaLabels(_zoom));
QList<const Style::Symbol*> areaSymbols(_style->areaSymbols(_zoom));
for (int i = 0; i < points.size(); i++) {
const MapData::Point &point = points.at(i);
@ -113,16 +116,16 @@ void RasterTile::processPointLabels(const QList<MapData::Point> &points,
const Style::Symbol *si = 0;
const QByteArray *lbl = 0;
for (int j = 0; j < symbols.size(); j++) {
const Style::Symbol *ri = symbols.at(j);
for (int j = 0; j < pointSymbols.size(); j++) {
const Style::Symbol *ri = pointSymbols.at(j);
if (ri->rule().match(point.tags)) {
si = ri;
break;
}
}
for (int j = 0; j < labels.size(); j++) {
const Style::TextRender *ri = labels.at(j);
for (int j = 0; j < pointLabels.size(); j++) {
const Style::TextRender *ri = pointLabels.at(j);
if (ri->rule().match(point.tags)) {
if ((lbl = label(ri->key(), point.tags))) {
if (!si || si->id() == ri->symbolId()) {
@ -134,34 +137,9 @@ void RasterTile::processPointLabels(const QList<MapData::Point> &points,
}
if (ti || si)
items.append(PointText(&point, lbl, si, ti));
items.append(Label(&point, lbl, si, ti));
}
std::sort(items.begin(), items.end());
for (int i = 0; i < items.size(); i++) {
const PointText &p = items.at(i);
const QImage *img = p.si ? &p.si->img() : 0;
const QFont *font = p.ti ? &p.ti->font() : 0;
const QColor *color = p.ti ? &p.ti->fillColor() : 0;
const QColor *hColor = p.ti ? haloColor(p.ti) : 0;
PointItem *item = new PointItem(ll2xy(p.p->coordinates).toPoint(),
p.lbl, font, img, color, hColor);
if (item->isValid() && !item->collides(textItems))
textItems.append(item);
else
delete item;
}
}
void RasterTile::processAreaLabels(const QVector<PainterPath> &paths,
QList<TextItem*> &textItems) const
{
QList<const Style::TextRender*> labels(_style->areaLabels(_zoom));
QList<const Style::Symbol*> symbols(_style->areaSymbols(_zoom));
QList<PathText> items;
for (int i = 0; i < paths.size(); i++) {
const PainterPath &path = paths.at(i);
const Style::TextRender *ti = 0;
@ -171,16 +149,16 @@ void RasterTile::processAreaLabels(const QVector<PainterPath> &paths,
if (!path.path->closed)
continue;
for (int j = 0; j < symbols.size(); j++) {
const Style::Symbol *ri = symbols.at(j);
for (int j = 0; j < areaSymbols.size(); j++) {
const Style::Symbol *ri = areaSymbols.at(j);
if (ri->rule().match(path.path->closed, path.path->tags)) {
si = ri;
break;
}
}
for (int j = 0; j < labels.size(); j++) {
const Style::TextRender *ri = labels.at(j);
for (int j = 0; j < areaLabels.size(); j++) {
const Style::TextRender *ri = areaLabels.at(j);
if (ri->rule().match(path.path->closed, path.path->tags)) {
if ((lbl = label(ri->key(), path.path->tags))) {
if (!si || si->id() == ri->symbolId()) {
@ -192,27 +170,36 @@ void RasterTile::processAreaLabels(const QVector<PainterPath> &paths,
}
if (ti || si)
items.append(PathText(&path, lbl, si, ti));
items.append(Label(&path, lbl, si, ti));
}
std::sort(items.begin(), items.end());
for (int i = 0; i < items.size(); i++) {
const PathText &p = items.at(i);
const QImage *img = p.si ? &p.si->img() : 0;
const QFont *font = p.ti ? &p.ti->font() : 0;
const QColor *color = p.ti ? &p.ti->fillColor() : 0;
const QColor *hColor = p.ti ? haloColor(p.ti) : 0;
const Label &l = items.at(i);
const QImage *img = l.si ? &l.si->img() : 0;
const QFont *font = l.ti ? &l.ti->font() : 0;
const QColor *color = l.ti ? &l.ti->fillColor() : 0;
const QColor *hColor = l.ti ? haloColor(l.ti) : 0;
QPointF pos = p.p->path->labelPos.isNull()
? centroid(p.p->pp) : ll2xy(p.p->path->labelPos);
PointItem *item = new PointItem(pos.toPoint(), p.lbl, font, img, color,
hColor);
if (item->isValid() && rectNearPolygon(p.p->pp, item->boundingRect())
&& !item->collides(textItems))
textItems.append(item);
else
delete item;
if (l.point) {
PointItem *item = new PointItem(ll2xy(l.point->coordinates).toPoint(),
l.lbl, font, img, color, hColor);
if (item->isValid() && !item->collides(textItems))
textItems.append(item);
else
delete item;
} else {
QPointF pos = l.path->path->labelPos.isNull()
? centroid(l.path->pp) : ll2xy(l.path->path->labelPos);
PointItem *item = new PointItem(pos.toPoint(), l.lbl, font, img,
color, hColor);
if (item->isValid() && rectNearPolygon(_rect, l.path->pp,
item->boundingRect()) && !item->collides(textItems))
textItems.append(item);
else
delete item;
}
}
}
@ -221,7 +208,7 @@ void RasterTile::processLineLabels(const QVector<PainterPath> &paths,
{
QList<const Style::TextRender*> labels(_style->pathLabels(_zoom));
QList<const Style::Symbol*> symbols(_style->lineSymbols(_zoom));
QList<PathText> items;
QList<Label> items;
QSet<QByteArray> set;
for (int i = 0; i < paths.size(); i++) {
@ -254,57 +241,57 @@ void RasterTile::processLineLabels(const QVector<PainterPath> &paths,
}
if (ti || si)
items.append(PathText(&path, lbl, si, ti));
items.append(Label(&path, lbl, si, ti));
}
std::sort(items.begin(), items.end());
for (int i = 0; i < items.size(); i++) {
const PathText &p = items.at(i);
const QImage *img = p.si ? &p.si->img() : 0;
const QFont *font = p.ti ? &p.ti->font() : 0;
const QColor *color = p.ti ? &p.ti->fillColor() : 0;
const QColor *hColor = p.ti ? haloColor(p.ti) : 0;
bool rotate = p.si ? p.si->rotate() : false;
const Label &l = items.at(i);
const QImage *img = l.si ? &l.si->img() : 0;
const QFont *font = l.ti ? &l.ti->font() : 0;
const QColor *color = l.ti ? &l.ti->fillColor() : 0;
const QColor *hColor = l.ti ? haloColor(l.ti) : 0;
bool rotate = l.si ? l.si->rotate() : false;
bool limit = false;
if (p.ti) {
limit = (p.ti->key() == ID_ELE || p.ti->key() == ID_REF
|| (!p.si && p.ti->shield()));
if (limit && set.contains(*p.lbl))
if (l.ti) {
limit = (l.ti->key() == ID_ELE || l.ti->key() == ID_REF
|| (!l.si && l.ti->shield()));
if (limit && set.contains(*l.lbl))
continue;
}
if (!p.si && p.ti && p.ti->shield()) {
if (p.ti && p.lbl && set.contains(*p.lbl))
if (!l.si && l.ti && l.ti->shield()) {
if (l.ti && l.lbl && set.contains(*l.lbl))
continue;
if (p.p->pp.length() < _rect.width() / 3.0)
if (l.path->pp.length() < _rect.width() / 3.0)
continue;
QPointF pos = p.p->pp.pointAtPercent(0.5);
QPointF pos = l.path->pp.pointAtPercent(0.5);
PointItem *item = new PointItem(pos.toPoint(), p.lbl, font, color,
PointItem *item = new PointItem(pos.toPoint(), l.lbl, font, color,
hColor);
if (item->isValid() && _rect.contains(item->boundingRect().toRect())
&& !item->collides(textItems)) {
textItems.append(item);
if (p.ti && p.lbl)
set.insert(*p.lbl);
if (l.ti && l.lbl)
set.insert(*l.lbl);
} else
delete item;
} else {
PathItem *item = new PathItem(p.p->pp, p.lbl, img, _rect, font,
PathItem *item = new PathItem(l.path->pp, l.lbl, img, _rect, font,
color, hColor, rotate);
if (item->isValid() && !item->collides(textItems)) {
textItems.append(item);
if (limit)
set.insert(*p.lbl);
set.insert(*l.lbl);
} else {
delete item;
if (img && p.lbl) {
PathItem *item = new PathItem(p.p->pp, 0, img, _rect, 0, 0,
0, rotate);
if (img && l.lbl) {
PathItem *item = new PathItem(l.path->pp, 0, img, _rect, 0,
0, 0, rotate);
if (item->isValid() && !item->collides(textItems))
textItems.append(item);
else
@ -431,6 +418,7 @@ void RasterTile::drawPaths(QPainter *painter, const QList<MapData::Path> &paths,
hillShadingInstructions(instructions);
std::sort(instructions.begin(), instructions.end());
qDebug() << instructions.size();
for (int i = 0; i < instructions.size(); i++) {
const RenderInstruction &is = instructions.at(i);
PainterPath *path = is.path();
@ -543,8 +531,7 @@ void RasterTile::render()
drawPaths(&painter, paths, points, renderPaths);
processPointLabels(points, textItems);
processAreaLabels(renderPaths, textItems);
processLabels(points, renderPaths, textItems);
processLineLabels(renderPaths, textItems);
drawTextItems(&painter, textItems);

48
src/map/mapsforge/rastertile.h
View File

@ -43,44 +43,34 @@ private:
const MapData::Path *path;
};
struct PointText {
PointText(const MapData::Point *p, const QByteArray *lbl,
struct Label {
Label(const MapData::Point *p, const QByteArray *lbl,
const Style::Symbol *si, const Style::TextRender *ti)
: p(p), lbl(lbl), ti(ti), si(si)
: point(p), path(0), lbl(lbl), ti(ti), si(si)
{
Q_ASSERT(si || ti);
}
Label(const PainterPath *p, const QByteArray *lbl,
const Style::Symbol *si, const Style::TextRender *ti)
: point(0), path(p), lbl(lbl), ti(ti), si(si)
{
Q_ASSERT(si || ti);
}
bool operator<(const PointText &other) const
bool operator<(const Label &other) const
{
quint64 id = point ? point->id : path->path->id;
quint64 oid = other.point ? other.point->id : other.path->path->id;
if (priority() == other.priority())
return p->id < other.p->id;
return id < oid;
else
return (priority() > other.priority());
}
int priority() const {return si ? si->priority() : ti->priority();}
const MapData::Point *p;
const QByteArray *lbl;
const Style::TextRender *ti;
const Style::Symbol *si;
};
struct PathText {
PathText(const PainterPath *p, const QByteArray *lbl,
const Style::Symbol *si, const Style::TextRender *ti)
: p(p), lbl(lbl), ti(ti), si(si)
{
Q_ASSERT(si || ti);
}
bool operator<(const PathText &other) const
{
return (priority() > other.priority());
}
int priority() const {return si ? si->priority() : ti->priority();}
const PainterPath *p;
const MapData::Point *point;
const PainterPath *path;
const QByteArray *lbl;
const Style::TextRender *ti;
const Style::Symbol *si;
@ -208,10 +198,8 @@ private:
{return _transform.proj2img(_proj.ll2xy(c));}
Coordinates xy2ll(const QPointF &p) const
{return _proj.xy2ll(_transform.img2proj(p));}
void processPointLabels(const QList<MapData::Point> &points,
QList<TextItem*> &textItems) const;
void processAreaLabels(const QVector<PainterPath> &paths,
QList<TextItem*> &textItems) const;
void processLabels(const QList<MapData::Point> &points,
const QVector<PainterPath> &paths, QList<TextItem*> &textItems) const;
void processLineLabels(const QVector<PainterPath> &paths,
QList<TextItem*> &textItems) const;
QPainterPath painterPath(const Polygon &polygon, bool curve) const;