From 8594c2ce36619765b9565afac8e635b1d17289f1 Mon Sep 17 00:00:00 2001
From: GriffinR <griffin.g.richards@gmail.com>
Date: Mon, 28 Nov 2022 16:01:29 -0500
Subject: [PATCH] Display message when hovering on border metatiles

---
 CHANGELOG.md                           |  3 +++
 include/ui/bordermetatilespixmapitem.h |  9 +++++++++
 src/editor.cpp                         |  4 ++++
 src/ui/bordermetatilespixmapitem.cpp   | 18 ++++++++++++++++++
 4 files changed, 34 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index eed6c36a..75cd1932 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,9 @@ The **"Breaking Changes"** listed below are changes that have been made in the d
 ### Added
 - Add `setScale` to the scripting API.
 
+### Changed
+- Hovering on border metatiles with the mouse will now display their information in the bottom bar.
+
 ## [5.0.0] - 2022-10-30
 ### Breaking Changes
 - Proper support for pokefirered's clone objects was added, which requires the changes made in [pokefirered/#484](https://github.com/pret/pokefirered/pull/484).
diff --git a/include/ui/bordermetatilespixmapitem.h b/include/ui/bordermetatilespixmapitem.h
index 870c975e..f4af8bfe 100644
--- a/include/ui/bordermetatilespixmapitem.h
+++ b/include/ui/bordermetatilespixmapitem.h
@@ -18,9 +18,18 @@ public:
     Map *map;
     void draw();
 signals:
+    void hoveredBorderMetatileSelectionChanged(uint16_t);
+    void hoveredBorderMetatileSelectionCleared();
     void borderMetatilesChanged();
+
+private:
+    void hoverUpdate(const QPointF &);
+
 protected:
     void mousePressEvent(QGraphicsSceneMouseEvent*);
+    void mouseMoveEvent(QGraphicsSceneMouseEvent*);
+    void hoverMoveEvent(QGraphicsSceneHoverEvent*);
+    void hoverLeaveEvent(QGraphicsSceneHoverEvent*);
 };
 
 #endif // BORDERMETATILESPIXMAPITEM_H
diff --git a/src/editor.cpp b/src/editor.cpp
index 21873fd7..7bb4b26f 100644
--- a/src/editor.cpp
+++ b/src/editor.cpp
@@ -1443,6 +1443,10 @@ void Editor::displayBorderMetatiles() {
     selected_border_metatiles_item->draw();
     scene_selected_border_metatiles->addItem(selected_border_metatiles_item);
 
+    connect(selected_border_metatiles_item, &BorderMetatilesPixmapItem::hoveredBorderMetatileSelectionChanged,
+            this, &Editor::onHoveredMetatileSelectionChanged);
+    connect(selected_border_metatiles_item, &BorderMetatilesPixmapItem::hoveredBorderMetatileSelectionCleared,
+            this, &Editor::onHoveredMetatileSelectionCleared);
     connect(selected_border_metatiles_item, &BorderMetatilesPixmapItem::borderMetatilesChanged,
             this, &Editor::onBorderMetatilesChanged);
 }
diff --git a/src/ui/bordermetatilespixmapitem.cpp b/src/ui/bordermetatilespixmapitem.cpp
index 9aa6548e..8f8bc134 100644
--- a/src/ui/bordermetatilespixmapitem.cpp
+++ b/src/ui/bordermetatilespixmapitem.cpp
@@ -54,3 +54,21 @@ void BorderMetatilesPixmapItem::draw() {
 
     emit borderMetatilesChanged();
 }
+
+void BorderMetatilesPixmapItem::hoverUpdate(const QPointF &pixmapPos) {
+    QPoint pos = Metatile::coordFromPixmapCoord(pixmapPos);
+    uint16_t metatileId = this->map->getBorderMetatileId(pos.x(), pos.y());
+    emit this->hoveredBorderMetatileSelectionChanged(metatileId);
+}
+
+void BorderMetatilesPixmapItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+    this->hoverUpdate(event->pos());
+}
+
+void BorderMetatilesPixmapItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event) {
+    this->hoverUpdate(event->pos());
+}
+
+void BorderMetatilesPixmapItem::hoverLeaveEvent(QGraphicsSceneHoverEvent*) {
+    emit this->hoveredBorderMetatileSelectionCleared();
+}