From 86b85e5afce46c3099e2e7f15e22c6116822aa41 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20T=C5=AFma?= <tumic@cbox.cz>
Date: Mon, 28 Oct 2024 13:00:56 +0100
Subject: [PATCH] Limit area labels to one per tile

---
 src/map/mapsforge/rastertile.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/map/mapsforge/rastertile.cpp b/src/map/mapsforge/rastertile.cpp
index 3fed7c6d..4e6287b8 100644
--- a/src/map/mapsforge/rastertile.cpp
+++ b/src/map/mapsforge/rastertile.cpp
@@ -153,6 +153,7 @@ void RasterTile::processAreaLabels(const QVector<PainterPath> &paths,
 	QList<const Style::TextRender*> labels(_style->areaLabels(_zoom));
 	QList<const Style::Symbol*> symbols(_style->areaSymbols(_zoom));
 	QList<PathText> items;
+	QSet<QByteArray> set;
 
 	for (int i = 0; i < paths.size(); i++) {
 		const PainterPath &path = paths.at(i);
@@ -199,12 +200,16 @@ void RasterTile::processAreaLabels(const QVector<PainterPath> &paths,
 		QPointF pos = p.p->path->labelPos.isNull()
 		  ? centroid(p.p->pp) : ll2xy(p.p->path->labelPos);
 
+		if (p.ti && set.contains(*p.lbl))
+			continue;
+
 		PointItem *item = new PointItem(pos.toPoint(), p.lbl, font, img, color,
 		  hColor);
 		if (item->isValid() && _rect.contains(item->boundingRect().toRect())
-		  && !item->collides(textItems))
+		  && !item->collides(textItems)) {
 			textItems.append(item);
-		else
+			set.insert(*p.lbl);
+		} else
 			delete item;
 	}
 }