#pragma once

#include <QPixmap>
#include <QVector>
#include <QString>
#include <QHash>
#include <QVector>
#include <QSet>
#include <QAbstractScrollArea>

#include "ZxDynamic.h"
#include "ZxPtyItem.h"
#include "iProperty_global.h"

class ZxPtyFileManager;
class ZxPtyAttributeFile;
class ZxXpfNode;

// 绘图属性载体
class I_PROPERTY_EXPORT ZxPtyPano
		: public QAbstractScrollArea
		, virtual public IxPtyPano
		, virtual public IxDynObj
{
	Q_OBJECT
	ZX_DECLARE_DYNAMIC

public:

	explicit ZxPtyPano();
	~ZxPtyPano();

    // 入口
    virtual void beginSession(const QString& configName, IxInterface* pSessionOwner);
    virtual void endSession();

    // 具体对象
    virtual void beginObject(IxPtySource* p);
    virtual void endObject();

    // 组及项添加
    virtual IxPtyItem* addGroup(const QString& key, bool expand = true, bool visible = true);
    virtual IxPtyItem* add(ZX_PROPERTY_CHANGED_CALLBACK callback, \
                           const QString& key, \
                           const QVariant& var);

    // 检索
    virtual IxPtyItem* findPropertyItem(const QString& sKey);

    // 清空
    virtual void clear(IxInterface* pSessionOwner);

	// 获取当前配置文件. 这个文件是根据上层应用模块设置的配置名来加载的, 每次填表都会更新.
    ZxPtyAttributeFile* getAttributeFile();

    // 对象体
    IxPtySource* getCurObject() { return m_pObject; }

signals:

    // 显示某项的tips
    void sigShowItemTips(const QString& help);

protected slots:

    void slotConfigReloaded();

public:

    virtual void paintEvent(QPaintEvent *);
    virtual void mousePressEvent(QMouseEvent *);
    virtual void mouseDoubleClickEvent(QMouseEvent* e);
    virtual void mouseReleaseEvent(QMouseEvent *);
    virtual void mouseMoveEvent(QMouseEvent *);
    virtual void resizeEvent(QResizeEvent *);

private:

    void paintGrid(QPainter& painter);
    void paintHeader(QPainter& painter);
    void paintGroups(QPainter& painter);
    void paintItems(QPainter& painter);

    void onActiveItemChanged(ZxPtyItem* item);

	enum HitTestPart
	{
		htNone,
		htExpander,
		htLeftCol,
		htRightCol,
		htSplit
	};

	class HitTestResult
	{
	public:

		int row;
		HitTestPart part;

		bool isValid() const;
		int col();
	};

private:

    // 创建
    ZxPtyItem* getOrCreate(const QString& key, \
                           const QVariant& initVar, \
                           bool* bJustCreated);
    IxPtyItemEditor* createEditor(const QString& name);
    void releaseEditor(IxPtyItemEditor* p);

    // 配置关联
    ZxXpfNode* getItemConfig(const QString& key);
    int getAndIncObjectSn();

    // 布局相关
	void updateLayout();
    void doLayout();
    void saveXSplit();
    void loadXSplit();
    void normalizeXSplit();

    QRect getLeftRect(int nVirtualRow);
    QRect getRightRect(int nVirtualRow);
    int indentWidth() const;

    int right() const;

    int getVerticalScrollPos() const;
    void scrollContentsBy(int dx, int dy);

    // 鼠标交互
    HitTestResult hitTest(int x, int y);

    // 项展开
    void expand(ZxPtyItem* p);
    void collapse(ZxPtyItem* p);

    // 项激活
    void activateItem(ZxPtyItem* p);
    void updateItem(ZxPtyItem* item); // 刷新重绘
    void clearItems();

private:

    // 关联对象及载体
    QHash<QString, ZxPtyItem*> m_hashPtyItems;
    ZxPtyFileManager* m_pConfigManager;
    mutable ZxPtyAttributeFile* m_pAttribueFile;
	mutable QString m_sConfig;

    IxPtySource* m_pObject;
    IxPtyItem* m_pCurrentItem;
    int m_nObjectCount;

    int m_nSessionId;
    IxInterface* m_pSessionOwner;

    QHash<QString, int> m_hashObjSns;
	bool m_bInitializingSession;

    // 布局及鼠标交互相关
    bool m_bHitSplit;
	int m_xSplit;
    bool m_bNeedLayout;
    QVector<ZxPtyItem*> m_vecRealRows;
    QVector<ZxPtyItem*> m_vecVirtualRows;

    // 项展开折叠图标
	QPixmap m_pixExpand;
    QPixmap m_pixCollapse;

    // 颜色
	QColor m_vecBackColors[3];
    QColor m_clrFrameBack;

    // 其它
	double m_dNextItemOrder;
    bool m_bClearEntered;
    QList<ZxPtyItem*> m_listItemsToBeDeleted;

    // 控件池
	typedef QVector<IxPtyItemEditor*> ItemEditorVector;
    QHash<QString, ItemEditorVector> m_hashEditorPools;

    // 内部布局涉及的遍历
    int m_nRowHeight;
    int m_nIndentWidth;
    int m_nIconWidth;
    int m_nIconMarginH;
    int m_nIconMarginV;
    int m_nPaddingLeft;
    int m_nPaddingRight;
    int m_nPaddingBottom;
    int m_nCellPaddingV;
    int m_nCellPaddingH;
    int m_nCellSpacing;

    friend class ZxPtyFileManager;
    friend class ZxPtyItem;
};