ActWorld/MapPresent/MapPresent.h

#pragma once

#include "mappresent_global.h"
#include <QWidget>

/// <summary>
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
/// </summary>
struct MAPPRESENT_EXPORT PresentIndex {
	/// <summary>
	/// <20>к<EFBFBD>
	/// </summary>
	int row = INT_MAX;
	/// <summary>
	/// <20>к<EFBFBD>
	/// </summary>
	int col = INT_MAX;

	bool isValid() const;

	PresentIndex& operator+=(const PresentIndex& other);
	bool operator!=(const PresentIndex& other) const;
};

/// <summary>
/// <20><><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1>
/// </summary>
struct PresentOption {
	/// <summary>
	/// <20><>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	/// </summary>
	PresentIndex index;
	/// <summary>
	/// <20><>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ե
	/// </summary>
	QRectF outline;

	bool isMouseOver = false;
	bool isSelected = false;
};

/// <summary>
/// <20><>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD>ί<EFBFBD><CEAF>
/// </summary>
class UnitPresentDelegate {
public:
	virtual ~UnitPresentDelegate() = default;
	/// <summary>
	/// ƥ<>䵥Ԫ<E4B5A5><D4AA><EFBFBD><EFBFBD>
	/// </summary>
	/// <returns></returns>
	virtual int unitType() const = 0;
	/// <summary>
	/// <20><><EFBFBD>Ʊ<EFBFBD><C6B1><EFBFBD>Ԫ<EFBFBD><D4AA>Ƭ
	/// </summary>
	/// <param name="p"></param>
	/// <param name="option"></param>
	virtual void paint(QPainter* p, const PresentOption& option) = 0;
};

/// <summary>
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD>
/// </summary>
class MAPPRESENT_EXPORT MapPresent : public QWidget
{
	Q_OBJECT
private:
	/// <summary>
	/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>α䳤
	/// </summary>
	const float _primitive_region_square_len = 100;
	/// <summary>
	/// <20><><EFBFBD>ű<EFBFBD><C5B1><EFBFBD>
	/// </summary>
	short _scale_times = 1;
	/// <summary>
	/// <20><>ǰ<EFBFBD><C7B0>Ƭ<EFBFBD><C6AC>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	/// </summary>
	PresentIndex _center_index;

	// ===================================
	QList<PresentOption> _visible_units;
	void visibleUnitsTidy();

	QList<PresentIndex> siblingsGet(const PresentIndex& center, uint16_t dist = 1) const;
	QList<PresentIndex> itemFills(const PresentIndex& a, const PresentIndex& b) const;



public:
	MapPresent(QWidget* parent = nullptr);

	/// <summary>
	/// ͨ<><CDA8>widget<65>϶<EFBFBD>λ<EFBFBD><CEBB>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	/// </summary>
	/// <param name="pos"></param>
	/// <returns></returns>
	PresentIndex indexGet(const QPointF& pos) const;
	/// <summary>
	/// ͨ<><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡָ<C8A1><D6B8><EFBFBD><EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD>Ӿ<EFBFBD><D3BE><EFBFBD>
	/// </summary>
	/// <param name="idx"></param>
	/// <returns></returns>
	QRectF outlineGet(const PresentIndex& idx) const;

signals:
	void mouseEnter();
	void mouseOut();
	void mouseHover();

protected:
	void paintEvent(QPaintEvent* ev) override;
	void resizeEvent(QResizeEvent* event) override;

};