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Use the polygons labels for displaying rather than discarding them

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This commit is contained in:
Martin Tůma 2020-01-22 21:01:05 +01:00
parent ae2ff99be8
commit ce6d6298bb
6 changed files with 93 additions and 12 deletions
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10
src/map/IMG/rgnfile.cpp
View File

@ -118,7 +118,7 @@ bool RGNFile::init(Handle &hdl)
bool RGNFile::polyObjects(const RectC &rect, Handle &hdl, const SubDiv *subdiv,
const Segment &segment, LBLFile *lbl, Handle &lblHdl, NETFile *net,
Handle &netHdl, QList<IMG::Poly> *polys, bool line) const
Handle &netHdl, QList<IMG::Poly> *polys) const
{
if (!seek(hdl, segment.start()))
return false;
@ -172,7 +172,7 @@ bool RGNFile::polyObjects(const RectC &rect, Handle &hdl, const SubDiv *subdiv,
if (!rect.intersects(br))
continue;
if (line && lbl && (labelPtr & 0x3FFFFF)) {
if (lbl && (labelPtr & 0x3FFFFF)) {
if (labelPtr & 0x800000) {
quint32 lblOff;
if (net && net->lblOffset(netHdl, labelPtr & 0x3FFFFF, lblOff)
@ -278,7 +278,7 @@ bool RGNFile::extPolyObjects(const RectC &rect, Handle &hdl,
if (!rect.intersects(br))
continue;
if (line && lbl && (labelPtr & 0x3FFFFF))
if (lbl && (labelPtr & 0x3FFFFF))
poly.label = lbl->label(lblHdl, labelPtr & 0x3FFFFF);
polys->append(poly);
@ -409,12 +409,12 @@ void RGNFile::objects(const RectC &rect, const SubDiv *subdiv,
case Segment::Line:
if (lines)
polyObjects(rect, rgnHdl, subdiv, segment, lbl, lblHdl, net,
netHdl, lines, true);
netHdl, lines);
break;
case Segment::Polygon:
if (polygons)
polyObjects(rect, rgnHdl, subdiv, segment, lbl, lblHdl, net,
netHdl, polygons, false);
netHdl, polygons);
break;
case Segment::RoadReference:
break;

2
src/map/IMG/rgnfile.h
View File

@ -62,7 +62,7 @@ private:
QVector<Segment> segments(Handle &hdl, const SubDiv *subdiv) const;
bool polyObjects(const RectC &rect, Handle &hdl, const SubDiv *subdiv,
const Segment &segment, LBLFile *lbl, Handle &lblHdl, NETFile *net,
Handle &netHdl, QList<IMG::Poly> *polys, bool line) const;
Handle &netHdl, QList<IMG::Poly> *polys) const;
bool pointObjects(const RectC &rect, Handle &hdl, const SubDiv *subdiv,
const Segment &segment, LBLFile *lbl, Handle &lblHdl,
QList<IMG::Point> *points) const;

18
src/map/IMG/style.cpp
View File

@ -33,7 +33,7 @@ void Style::defaultPolygonStyle()
Qt::BDiagPattern));
_polygons[TYPE(0x17)] = Style::Polygon(QBrush("#d4ebb8"));
_polygons[TYPE(0x18)] = Style::Polygon(QBrush("#d4ebb8"));
_polygons[TYPE(0x19)] = Style::Polygon(QBrush("#d6d4ce"));
_polygons[TYPE(0x19)] = Style::Polygon(QBrush("#e3edc6"), QPen("#c9d3a5"));
_polygons[TYPE(0x1a)] = Style::Polygon(QBrush("#000000", Qt::Dense6Pattern),
QPen(QColor("#cdccc4"), 1));
_polygons[TYPE(0x1e)] = Style::Polygon(QBrush(QColor("#9ac269"),
@ -980,6 +980,22 @@ bool Style::isContourLine(quint32 type)
|| (type & 0xffff00) == TYPE(0x109));
}
bool Style::isWaterArea(quint32 type)
{
return (type >= TYPE(0x3c) && type <= TYPE(0x44));
}
bool Style::isMilitaryArea(quint32 type)
{
return (type == TYPE(0x04));
}
bool Style::isInfrastructureArea(quint32 type)
{
return ((type >= TYPE(0x07) && type <= TYPE(0xc)) || type == TYPE(0x13)
|| type == TYPE(0x1a) || type == TYPE(0x19));
}
bool Style::isSpot(quint32 type)
{
return (type == TYPE(0x62) || type == TYPE(0x63));

4
src/map/IMG/style.h
View File

@ -47,6 +47,7 @@ public:
private:
QBrush _brush;
QPen _pen;
QColor _textColor;
};
class Line {
@ -109,6 +110,9 @@ public:
static bool isSpot(quint32 type);
static bool isSummit(quint32 type);
static bool isMajorRoad(quint32 type);
static bool isWaterArea(quint32 type);
static bool isMilitaryArea(quint32 type);
static bool isInfrastructureArea(quint32 type);
static POIClass poiClass(quint32 type);
private:

68
src/map/imgmap.cpp
View File

@ -43,10 +43,10 @@ public:
{
QList<TextItem*> textItems;
_map->processPolygons(_polygons);
QRect tileRect(_xy, QSize(TILE_SIZE, TILE_SIZE));
_map->processPolygons(_polygons, textItems);
_map->processPoints(_points, textItems);
_map->processLines(_lines, QRect(_xy, QSize(TILE_SIZE, TILE_SIZE)),
textItems);
_map->processLines(_lines, tileRect, textItems);
_img.fill(Qt::transparent);
@ -186,6 +186,49 @@ static int minShieldZoom(Label::Shield::Type type)
}
}
static qreal area(const QVector<QPointF> &polygon)
{
qreal area = 0;
for (int i = 0; i < polygon.size(); i++) {
int j = (i + 1) % polygon.size();
area += polygon.at(i).x() * polygon.at(j).y();
area -= polygon.at(i).y() * polygon.at(j).x();
}
area /= 2.0;
return area;
}
static QPointF centroid(const QVector<QPointF> polygon)
{
qreal cx = 0, cy = 0, factor = 0;
qreal A = area(polygon);
for (int i = 0; i < polygon.size(); i++) {
int j = (i + 1) % polygon.size();
factor=(polygon.at(i).x() * polygon.at(j).y() - polygon[j].x()
* polygon[i].y());
cx+=(polygon[i].x() + polygon[j].x()) * factor;
cy+=(polygon[i].y() + polygon[j].y()) * factor;
}
A *= 6.0f;
factor = 1/A;
cx *= factor;
cy *= factor;
return QPointF(cx, cy);
}
static bool rectNearPolygon(const QPolygonF &polygon, const QRectF &rect)
{
return (polygon.boundingRect().contains(rect)
&& (polygon.containsPoint(rect.topLeft(), Qt::OddEvenFill)
|| polygon.containsPoint(rect.topRight(), Qt::OddEvenFill)
|| polygon.containsPoint(rect.bottomLeft(), Qt::OddEvenFill)
|| polygon.containsPoint(rect.bottomRight(), Qt::OddEvenFill)));
}
IMGMap::IMGMap(const QString &fileName, QObject *parent)
: Map(parent), _img(fileName), _projection(PCS::pcs(3857)), _valid(false)
@ -335,7 +378,8 @@ void IMGMap::drawTextItems(QPainter *painter, const QList<TextItem*> &textItems)
}
void IMGMap::processPolygons(QList<IMG::Poly> &polygons)
void IMGMap::processPolygons(QList<IMG::Poly> &polygons,
QList<TextItem*> &textItems)
{
for (int i = 0; i < polygons.size(); i++) {
IMG::Poly &poly = polygons[i];
@ -343,6 +387,22 @@ void IMGMap::processPolygons(QList<IMG::Poly> &polygons)
QPointF &p = poly.points[j];
p = ll2xy(Coordinates(p.x(), p.y()));
}
if (poly.label.text().isEmpty())
continue;
if (Style::isWaterArea(poly.type) || Style::isMilitaryArea(poly.type)
|| Style::isInfrastructureArea(poly.type)) {
const Style::Polygon &style = _img.style()->polygon(poly.type);
TextPointItem *item = new TextPointItem(
centroid(poly.points).toPoint(), &poly.label.text(),
poiFont(), 0, &style.brush().color(), 0);
if (item->isValid() && !item->collides(textItems)
&& rectNearPolygon(poly.points, item->boundingRect()))
textItems.append(item);
else
delete item;
}
}
}

3
src/map/imgmap.h
View File

@ -47,7 +47,8 @@ private:
void drawLines(QPainter *painter, const QList<IMG::Poly> &lines);
void drawTextItems(QPainter *painter, const QList<TextItem*> &textItems);
void processPolygons(QList<IMG::Poly> &polygons);
void processPolygons(QList<IMG::Poly> &polygons,
QList<TextItem *> &textItems);
void processLines(QList<IMG::Poly> &lines, const QRect &tileRect,
QList<TextItem*> &textItems);
void processPoints(QList<IMG::Point> &points, QList<TextItem*> &textItems);