134 lines
2.8 KiB
C++
134 lines
2.8 KiB
C++
#pragma once
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#include "mappresent_global.h"
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#include <QWidget>
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#include <memory>
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/// <summary>
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/// 绘制索引
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/// </summary>
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struct MAPPRESENT_EXPORT PresentIndex {
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/// <summary>
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/// 行号
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/// </summary>
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int row = INT_MAX;
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/// <summary>
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/// 列号
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/// </summary>
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int col = INT_MAX;
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bool isValid() const;
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PresentIndex& operator+=(const PresentIndex& other);
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bool operator!=(const PresentIndex& other) const;
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bool operator==(const PresentIndex& other) const;
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};
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/// <summary>
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/// 绘制选项
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/// </summary>
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struct PresentOption {
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/// <summary>
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/// 当前所绘制索引
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/// </summary>
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PresentIndex index;
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/// <summary>
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/// 当前绘制外缘
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/// </summary>
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QRectF outline;
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PresentOption& operator=(const PresentOption& other);
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};
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/// <summary>
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/// 单元绘制委托
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/// </summary>
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class UnitPresentDelegate : public QObject {
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Q_OBJECT
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public:
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UnitPresentDelegate(QObject* parent = nullptr);
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virtual ~UnitPresentDelegate() = default;
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/// <summary>
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/// 匹配单元类型
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/// </summary>
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/// <returns></returns>
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virtual int unitType() const = 0;
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/// <summary>
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/// 绘制本单元瓦片
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/// </summary>
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/// <param name="p"></param>
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/// <param name="option"></param>
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virtual void paint(QPainter* p, const PresentOption& option) = 0;
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signals:
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/// <summary>
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/// 更新通知/重绘请求
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/// </summary>
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void updateRequest(const PresentIndex &idx);
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};
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class OptionGroup;
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/// <summary>
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/// 基础地图绘制
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/// </summary>
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class MAPPRESENT_EXPORT MapPresent : public QWidget
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{
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Q_OBJECT
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private:
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/// <summary>
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/// 初级区域矩形变长
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/// </summary>
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const float _primitive_region_square_len = 100;
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/// <summary>
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/// 缩放倍数
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/// </summary>
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short _scale_times = 1;
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/// <summary>
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/// 当前瓦片地图中心索引
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/// </summary>
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PresentIndex _center_index;
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// ===================================
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QList<std::shared_ptr<OptionGroup>> _visible_units;
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void visibleUnitsTidy();
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QList<PresentIndex> siblingsGet(const PresentIndex& center, uint16_t dist = 1) const;
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QList<PresentIndex> itemFills(const PresentIndex& a, const PresentIndex& b) const;
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// ===================================
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QHash<int, UnitPresentDelegate*> _present_delegate;
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public:
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MapPresent(QWidget* parent = nullptr);
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/// <summary>
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/// 通过widget上定位获取绘制索引
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/// </summary>
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/// <param name="pos"></param>
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/// <returns></returns>
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PresentIndex indexGet(const QPointF& pos) const;
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/// <summary>
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/// 通过绘制索引获取指定单元外接矩形
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/// </summary>
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/// <param name="idx"></param>
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/// <returns></returns>
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QRectF outlineGet(const PresentIndex& idx) const;
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signals:
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void mouseIn();
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void mouseOut();
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void mouseHover(const PresentIndex& unit_index);
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protected:
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void paintEvent(QPaintEvent* ev) override;
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void resizeEvent(QResizeEvent* event) override;
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void mouseMoveEvent(QMouseEvent* event) override;
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void enterEvent(QEvent* event) override;
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void leaveEvent(QEvent* event) override;
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};
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