add options to count metatiles to tileset editor

- count the total number of usages across all maps of specific metatiles
- display the count and/or display unused metatiles
- this does not account for metatiles used in code (most of these are labeled)

include/core/maplayout.h

@@ -35,6 +35,11 @@ public:
         Blockdata blocks;
         QSize dimensions;
     } lastCommitMapBlocks; // to track map changes
+
+    int getWidth();
+    int getHeight();
+    int getBorderWidth();
+    int getBorderHeight();
 };
 
 #endif // MAPLAYOUT_H

include/project.h

@@ -95,7 +95,8 @@ public:
     QMap<QString, QStringList> tilesetLabels;
 
     Blockdata readBlockdata(QString);
-    bool loadBlockdata(Map*);
+    bool loadBlockdata(MapLayout*);
+    bool loadLayoutBorder(MapLayout*);
 
     void saveTextFile(QString path, QString text);
     void appendTextFile(QString path, QString text);
@@ -122,8 +123,9 @@ public:
     QMap<QString, bool> getTopLevelMapFields();
     bool loadMapData(Map*);
     bool readMapLayouts();
+    bool loadLayout(MapLayout *);
     bool loadMapLayout(Map*);
-    bool loadMapTilesets(Map*);
+    bool loadLayoutTilesets(MapLayout*);
     void loadTilesetAssets(Tileset*);
     void loadTilesetTiles(Tileset*, QImage);
     void loadTilesetMetatiles(Tileset*);
@@ -182,8 +184,6 @@ public:
     QStringList getEventScriptsFilePaths() const;
     QCompleter *getEventScriptLabelCompleter(QStringList additionalScriptLabels);
 
-    bool loadMapBorder(Map *map);
-
     void saveMapHealEvents(Map *map);
 
     static int getNumTilesPrimary();

include/ui/tileseteditor.h

@@ -75,6 +75,9 @@ private slots:
 
     void on_actionChange_Palettes_triggered();
 
+    void on_actionShow_Unused_toggled(bool checked);
+    void on_actionShow_Counts_toggled(bool checked);
+
     void on_actionUndo_triggered();
 
     void on_actionRedo_triggered();
@@ -119,6 +122,7 @@ private:
     void refresh();
     void saveMetatileLabel();
     void closeEvent(QCloseEvent*);
+    void countMetatileUsage();
 
     Ui::TilesetEditor *ui;
     History<MetatileHistoryItem*> metatileHistory;

include/ui/tileseteditormetatileselector.h

@@ -8,21 +8,20 @@
 class TilesetEditorMetatileSelector: public SelectablePixmapItem {
     Q_OBJECT
 public:
-    TilesetEditorMetatileSelector(Tileset *primaryTileset, Tileset *secondaryTileset, Map *map): SelectablePixmapItem(32, 32, 1, 1) {
-        this->primaryTileset = primaryTileset;
-        this->secondaryTileset = secondaryTileset;
-        this->numMetatilesWide = 8;
-        this->map = map;
-        setAcceptHoverEvents(true);
-    }
+    TilesetEditorMetatileSelector(Tileset *primaryTileset, Tileset *secondaryTileset, Map *map);
     Map *map = nullptr;
     void draw();
     bool select(uint16_t metatileId);
-    void setTilesets(Tileset*, Tileset*);
+    void setTilesets(Tileset*, Tileset*, bool draw = true);
     uint16_t getSelectedMetatile();
     void updateSelectedMetatile();
     QPoint getMetatileIdCoordsOnWidget(uint16_t metatileId);
 
+    // 
+    QVector<uint16_t> usedMetatiles;
+    bool selectorShowUnused = false;
+    bool selectorShowCounts = false;
+
 protected:
     void mousePressEvent(QGraphicsSceneMouseEvent*);
     void mouseMoveEvent(QGraphicsSceneMouseEvent*);
@@ -39,6 +38,10 @@ private:
     QPoint getMetatileIdCoords(uint16_t);
     bool shouldAcceptEvent(QGraphicsSceneMouseEvent*);
 
+    void drawFilters();
+    void drawUnused();
+    void drawCounts();
+
 signals:
     void hoveredMetatileChanged(uint16_t);
     void hoveredMetatileCleared();