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cockatrice/src/game_graphics/zones/command_zone.h

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+/**
+ * @file command_zone.h
+ * @ingroup GameGraphicsZones
+ * @brief Graphics layer for the command zone, used for Commander format.
+ */
+
+#ifndef COCKATRICE_COMMAND_ZONE_H
+#define COCKATRICE_COMMAND_ZONE_H
+
+#include "../../game/zones/command_zone_logic.h"
+#include "../card_dimensions.h"
+#include "select_zone.h"
+
+#include <QLoggingCategory>
+
+inline Q_LOGGING_CATEGORY(CommandZoneLog, "command_zone");
+
+/**
+ * @namespace ZoneSizes
+ * @brief Size constants for the command zone and its sub-elements.
+ */
+namespace ZoneSizes
+{
+
+/** @brief Height of the command zone (accommodates a card plus padding) */
+constexpr qreal COMMAND_ZONE_HEIGHT = CardDimensions::HEIGHT + 8;
+
+/** @brief Width of the command zone (matches stack zone) */
+constexpr qreal COMMAND_ZONE_WIDTH = CardDimensions::WIDTH_F * 1.5;
+
+} // namespace ZoneSizes
+
+/**
+ * @class CommandZone
+ * @brief Graphics layer for the command zone in Commander format games.
+ *
+ * Always visible when enabled. Supports multiple cards using a zigzag
+ * horizontal stacking pattern: single cards display centered, multiple
+ * cards alternate left-right with vertical overlap compression.
+ * Can be minimized to 25% height via double-click.
+ *
+ * @see CommandZoneLogic for card data management
+ * @see CommanderTaxCounter for the tax counter overlay
+ */
+class CommandZone : public SelectZone
+{
+    Q_OBJECT
+public:
+    static constexpr qreal MINIMUM_STACKING_HEIGHT = 50.0;
+
+private:
+    static constexpr double MINIMIZED_HEIGHT_RATIO = 0.25;
+    int zoneHeight;         ///< Full height in pixels when expanded
+    bool minimized = false; ///< Whether zone is at 25% height
+    int minimumHeight = 0;  ///< Floor for minimized height (e.g. to fit tax counters)
+
+public:
+    /**
+     * @brief Constructs a CommandZone graphics item.
+     * @param _logic Logic layer managing card data
+     * @param _zoneHeight Zone height in pixels
+     * @param parent Parent graphics item
+     */
+    CommandZone(CommandZoneLogic *_logic, int _zoneHeight, QGraphicsItem *parent);
+
+    /**
+     * @brief Handles card drops, calculating insertion position from drop point.
+     * @param dragItems Cards being dragged
+     * @param startZone Source zone
+     * @param dropPoint Drop position in local coordinates
+     */
+    void
+    handleDropEvent(const QList<CardDragItem *> &dragItems, CardZoneLogic *startZone, const QPoint &dropPoint) override;
+
+    /** @brief Returns the bounding rectangle, accounting for minimized state. */
+    [[nodiscard]] QRectF boundingRect() const override;
+    /** @brief Paints the zone background using the Commander theme brush. */
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
+    /** @brief Repositions cards using zigzag horizontal stacking with overlap compression. */
+    void reorganizeCards() override;
+
+    /** @brief Toggles between full and 25% minimized height. */
+    void toggleMinimized();
+    [[nodiscard]] bool isMinimized() const;
+    /** @brief Returns the current display height (full or minimized). */
+    [[nodiscard]] qreal currentHeight() const;
+    /** @brief Sets the minimum height floor, e.g. to ensure tax counters remain visible. */
+    void setMinimumHeight(int height);
+    /** @brief Lays out visible tax counters vertically in the top-left corner of the command zone. */
+    void rearrangeTaxCounters();
+
+signals:
+    /** @brief Emitted when the zone toggles between minimized and expanded states. */
+    void minimizedChanged(bool isMinimized);
+
+protected:
+    void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) override;
+
+private slots:
+    void updateBg();
+};
+
+#endif // COCKATRICE_COMMAND_ZONE_H