From 4f838b979cf6b81a6d622fe1867b8bd52f27459e Mon Sep 17 00:00:00 2001
From: Marcus Huderle <huderlem@gmail.com>
Date: Sun, 4 Mar 2018 10:19:03 -0800
Subject: [PATCH] Display hovered block selection in status bar

---
 editor.cpp | 20 ++++++++++++++++++++
 editor.h   |  5 +++++
 map.cpp    |  9 +++++++++
 map.h      |  2 ++
 4 files changed, 36 insertions(+)

diff --git a/editor.cpp b/editor.cpp
index 93f2657e..33da798c 100755
--- a/editor.cpp
+++ b/editor.cpp
@@ -257,6 +257,25 @@ void MetatilesPixmapItem::pick(uint tile) {
     emit map->paintTileChanged(map);
 }
 
+void MetatilesPixmapItem::updateCurHoveredMetatile(QPointF pos) {
+    int x = ((int)pos.x()) / 16;
+    int y = ((int)pos.y()) / 16;
+    int width = pixmap().width() / 16;
+    int height = pixmap().height() / 16;
+    if (x < 0 || x >= width || y < 0 || y >= height) {
+        map->clearHoveredMetatile();
+    } else {
+        int block = y * width + x;
+        map->hoveredMetatileChanged(block);
+    }
+}
+
+void MetatilesPixmapItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event) {
+    updateCurHoveredMetatile(event->pos());
+}
+void MetatilesPixmapItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) {
+    map->clearHoveredMetatile();
+}
 void MetatilesPixmapItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
     QPointF pos = event->pos();
     int x = ((int)pos.x()) / 16;
@@ -269,6 +288,7 @@ void MetatilesPixmapItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
     }
 }
 void MetatilesPixmapItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+    updateCurHoveredMetatile(event->pos());
     mousePressEvent(event);
 }
 void MetatilesPixmapItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
diff --git a/editor.h b/editor.h
index 15101e49..004084db 100755
--- a/editor.h
+++ b/editor.h
@@ -241,14 +241,19 @@ public:
     }
     MetatilesPixmapItem(Map *map_) {
         map = map_;
+        setAcceptHoverEvents(true);
         connect(map, SIGNAL(paintTileChanged(Map*)), this, SLOT(paintTileChanged(Map *)));
     }
     Map* map = NULL;
     virtual void pick(uint);
     virtual void draw();
+private:
+    void updateCurHoveredMetatile(QPointF pos);
 private slots:
     void paintTileChanged(Map *map);
 protected:
+    void hoverMoveEvent(QGraphicsSceneHoverEvent*);
+    void hoverLeaveEvent(QGraphicsSceneHoverEvent*);
     void mousePressEvent(QGraphicsSceneMouseEvent*);
     void mouseMoveEvent(QGraphicsSceneMouseEvent*);
     void mouseReleaseEvent(QGraphicsSceneMouseEvent*);
diff --git a/map.cpp b/map.cpp
index 4b33c182..48ab7653 100755
--- a/map.cpp
+++ b/map.cpp
@@ -745,3 +745,12 @@ void Map::hoveredTileChanged(int x, int y, int block) {
 void Map::clearHoveredTile() {
     emit statusBarMessage(QString(""));
 }
+
+void Map::hoveredMetatileChanged(int block) {
+    emit statusBarMessage(QString("Block: 0x%1")
+                          .arg(QString("%1").arg(block, 3, 16, QChar('0')).toUpper()));
+}
+
+void Map::clearHoveredMetatile() {
+    emit statusBarMessage(QString(""));
+}
diff --git a/map.h b/map.h
index 01af4910..c0336a24 100755
--- a/map.h
+++ b/map.h
@@ -184,6 +184,8 @@ public:
     bool hasUnsavedChanges();
     void hoveredTileChanged(int x, int y, int block);
     void clearHoveredTile();
+    void hoveredMetatileChanged(int block);
+    void clearHoveredMetatile();
 
     QList<QList<QRgb> > getBlockPalettes(int metatile_index);