From 73a60f5046960d155ed6705fbb533c1ea5349189 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20T=C5=AFma?= <tumic@cbox.cz>
Date: Sun, 1 Jun 2025 11:31:38 +0200
Subject: [PATCH] Hover the areas when the legend item is selected

---
 src/GUI/areaitem.cpp   | 10 ++++++++++
 src/GUI/areaitem.h     |  5 +++++
 src/GUI/legenditem.cpp |  2 ++
 src/GUI/mapitem.cpp    | 10 ++++++++++
 src/GUI/mapitem.h      |  5 ++++-
 src/GUI/planeitem.h    |  7 ++++++-
 6 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/src/GUI/areaitem.cpp b/src/GUI/areaitem.cpp
index 189c195c..b9700190 100644
--- a/src/GUI/areaitem.cpp
+++ b/src/GUI/areaitem.cpp
@@ -178,6 +178,16 @@ void AreaItem::setDigitalZoom(int zoom)
 	_pen.setWidthF(width() * pow(2, -_digitalZoom));
 }
 
+void AreaItem::hover(bool hvr)
+{
+	if (hvr)
+		_pen.setWidthF((_width + 1) * pow(2, -_digitalZoom));
+	else
+		_pen.setWidthF(_width * pow(2, -_digitalZoom));
+
+	update();
+}
+
 void AreaItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
 {
 	Q_UNUSED(event);
diff --git a/src/GUI/areaitem.h b/src/GUI/areaitem.h
index 14bee989..920a80f9 100644
--- a/src/GUI/areaitem.h
+++ b/src/GUI/areaitem.h
@@ -6,6 +6,8 @@
 
 class AreaItem : public PlaneItem
 {
+	Q_OBJECT
+
 public:
 	AreaItem(const Area &area, Map *map, GraphicsItem *parent = 0);
 
@@ -31,6 +33,9 @@ public:
 	const QColor color() const {return _pen.color();}
 	const QString &name() const {return _area.name();}
 
+public slots:
+	void hover(bool hvr);
+
 protected:
 	void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
 	void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
diff --git a/src/GUI/legenditem.cpp b/src/GUI/legenditem.cpp
index 0bd7e89b..08102742 100644
--- a/src/GUI/legenditem.cpp
+++ b/src/GUI/legenditem.cpp
@@ -66,6 +66,8 @@ void LegendItem::addItem(PlaneItem *item)
 
 	_boundingRect = QRectF(0, 0, qMax(_boundingRect.width(),
 	  li->boundingRect().width()), _items.size() * li->boundingRect().height());
+
+	QObject::connect(li, &LegendEntryItem::selected, item, &PlaneItem::hover);
 }
 
 void LegendItem::setColor(const QColor &color)
diff --git a/src/GUI/mapitem.cpp b/src/GUI/mapitem.cpp
index a1de70d8..8d81af43 100644
--- a/src/GUI/mapitem.cpp
+++ b/src/GUI/mapitem.cpp
@@ -205,6 +205,16 @@ void MapItem::setDigitalZoom(int zoom)
 	_pen.setWidthF(_width * pow(2, -_digitalZoom));
 }
 
+void MapItem::hover(bool hvr)
+{
+	if (hvr)
+		_pen.setWidthF((_width + 1) * pow(2, -_digitalZoom));
+	else
+		_pen.setWidthF(_width * pow(2, -_digitalZoom));
+
+	update();
+}
+
 void MapItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
 {
 	Q_UNUSED(event);
diff --git a/src/GUI/mapitem.h b/src/GUI/mapitem.h
index a61b647b..93a00d3e 100644
--- a/src/GUI/mapitem.h
+++ b/src/GUI/mapitem.h
@@ -6,7 +6,7 @@
 class MapAction;
 class Projection;
 
-class MapItem : public QObject, public PlaneItem
+class MapItem : public PlaneItem
 {
 	Q_OBJECT
 
@@ -32,6 +32,9 @@ public:
 	const QColor color() const {return _pen.color();}
 	const QString &name() const {return _name;}
 
+public slots:
+	void hover(bool hvr);
+
 signals:
 	void triggered();
 
diff --git a/src/GUI/planeitem.h b/src/GUI/planeitem.h
index e24cda8a..c13a6e48 100644
--- a/src/GUI/planeitem.h
+++ b/src/GUI/planeitem.h
@@ -6,8 +6,10 @@
 
 class Map;
 
-class PlaneItem : public GraphicsItem
+class PlaneItem : public QObject, public GraphicsItem
 {
+	Q_OBJECT
+
 public:
 	PlaneItem(GraphicsItem *parent = 0) : GraphicsItem(parent) {}
 
@@ -23,6 +25,9 @@ public:
 
 	virtual const QColor color() const = 0;
 	virtual const QString &name() const = 0;
+
+public slots:
+	virtual void hover(bool hvr) = 0;
 };
 
 #endif // PLANEITEM_H