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#pragma once
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#include <QIcon>
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#include <QRectF>
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#include <typeinfo>
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#include "IxSerDes.h"
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#include "ZxDynamic.h"
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class QMenu;
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class ZxTool;
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class ZxPaintParam;
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class ZxSceneItem;
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// 2D图元
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class IxRenderItem
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: virtual public IxDynObj
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, virtual public IxSerDes
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{
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public:
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enum Flags
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{
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// 无标志
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flagNone = 0,
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// 允许选择
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flagNoSelect = 0x00000001,
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// 锁定位置
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flagLockPos = 0x00000002,
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// 锁定尺寸
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flagLockSize = 0x00000004,
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// 内容只读(不递归)
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flagReadOnly = 0x00000008,
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// 自动尺寸(Hint).
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// 尺寸由子图元和内容决定, 在doLayout时自动改变.
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flagAutoSize = 0x00000010,
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// 紧缩(Hint).
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// 图元趋向于占较小空间, 通常和flagAutoSize配合使用
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flagShrink = 0x00000020,
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// 不可见
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flagHidden = 0x00000040,
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// 已经选中
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flagSelected = 0x00000080,
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// 不剪裁
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flagNoClip = 0x00000100,
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// 坐标偏移(偏移只对子孙图元有作用)
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flagLocalCoord = 0x00000200,
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// 强制重新布局
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flagForceLayout = 0x00000400,
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// 可能需要重新布局(非强制)
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flagNeedLayout = 0x00000800,
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// 可手动删除
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flagManualDelete = 0x00001000,
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// 静态策略, 不随着选中状态改变 (已经废弃, 请不要再用)
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flagStaticPolicy = 0x00002000,
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// 平凡的策略, 不浮在最上层
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flagOrdinaryPolicy = 0x00004000,
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// (在添加到别的图元里时)不自动重新布局
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flagNoAutoLayout = 0x00008000,
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// 在绘图时不开启反走样
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flagNoAntiAlias = 0x00010000
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};
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// 指定父节点, 并加自动入父节点的子图元列表中
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virtual void setParent(IxRenderItem* pParent) = 0;
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// 获取图元的显示名
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virtual QString getTitle() const = 0;
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// 获取图元的图标
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virtual QIcon getIcon() const = 0;
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// 递归绘图, 含自身和子图元
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virtual void paint(QPainter* painter, const ZxPaintParam& param) = 0;
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// 克隆图元
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virtual IxRenderItem* clone() const = 0;
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// 获取图元基础边框(位置)
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virtual QRectF getBounds() const = 0;
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// @endcode
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virtual void setBounds(const QRectF& rect, bool bSendEvent = true) = 0;
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// 设置图元边框
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virtual void setBounds(double x, double y, double width, double height, bool bSendEvent = true) = 0;
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// 判断图元是否完全相等
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virtual bool isEqual(const IxRenderItem* pAnother) const = 0;
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// 辅助函数, 用以简化isEqual的实现
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template <typename T_item>
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static inline bool isSameTypeAndSameParent(const T_item* _this, const IxRenderItem* _p)
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{
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const T_item* p = dynamic_cast<const T_item*>(_p);
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if (p == 0
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|| typeid(*p) != typeid(const T_item)
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|| typeid(*_this) != typeid(const T_item) ) // 必须都是T_item类型, 派生类也不行
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{
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return false;
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}
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if (_this->getParent() != p->getParent()) // parent 不同不认为是同一个图元
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{
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return false;
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}
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return true;
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}
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};
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