151 lines
3.8 KiB
C
151 lines
3.8 KiB
C
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/**
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* @file ModuleToolBarGraphicsItem.h
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* @brief 模块工具栏
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* @date 2011-09-22
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*/
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#ifndef PAI_FRAME_WORKFLOWWIDGET_MODULETOOLBARGRAPHICSITEM_H
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#define PAI_FRAME_WORKFLOWWIDGET_MODULETOOLBARGRAPHICSITEM_H
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#include <QGraphicsItem>
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#include <QList>
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#include <QPixmap>
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#include <QGraphicsOpacityEffect>
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#include "Turtle.h"
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namespace pai
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{
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namespace graphics2d
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{
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class ModuleGraphicsItem;
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}
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}
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namespace pai
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{
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namespace graphics2d
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{
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/**
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* @class ModuleToolBarGraphicsItem
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* @brief 模块工具栏
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*/
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class PAI_WORKFLOWWIDGET_EXPORT ModuleToolBarGraphicsItem : public QGraphicsItem
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{
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public:
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/**
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* @brief 模块工具栏类型
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*/
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enum
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{
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Type = UserType + 1010 ///< 当前工具栏item类型
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};
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/**
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* @brief 构造函数
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*/
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ModuleToolBarGraphicsItem();
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/**
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* @brief 析构函数
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*/
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virtual ~ModuleToolBarGraphicsItem();
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/**
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* @brief 获取当前item类型
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* @return item类型
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*/
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virtual int type() const;
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/**
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* @brief 当鼠标落在模块图元上时调用该函数建立关联
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* @param[in] pModuleItem 模块图元
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*/
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void AttachModuleItem(ModuleGraphicsItem *pModuleItem);
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/**
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* @brief 当鼠标移开模块图元上时调用该函数移除关联
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*/
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void DetachModuleItem();
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/**
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* @brief 实现该虚函数，返回模块图元的包围矩形
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* @return item外围矩形
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*/
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virtual QRectF boundingRect() const;
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/**
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* @brief 设置hover的状态
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* @param[in] hovering 正在hover
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*/
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void SetHovering(bool hovering);
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/**
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* @brief 得到hover的状态
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* @return hover状态
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*/
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bool GetHovering() const;
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/**
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* @brief 设置透明度使能
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* @param[in] enabled 使能标志
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*/
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void SetOpacityEffect(bool enabled);
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/**
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* @brief 设置模块工具栏是否处于只读场景，如果是只读场景，本控件不应该显示出来
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* @param[in] readonly只读
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*/
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void SetScenceReadOnly(bool readyonly);
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/**
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* @brief 设置是否显示
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* @param[in] visible 显示标志
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*/
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void SetToolBarVisible(bool visible);
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protected:
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/**
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* @brief 重写该虚函数，实现鼠标进入覆盖操作
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* @param[in] pEvent 鼠标hoverEnter事件
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*/
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virtual void hoverEnterEvent (QGraphicsSceneHoverEvent *pEvent);
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/**
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* @brief 重写该虚函数，实现鼠标在模块上移动操作
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* @param[in] pEvent 鼠标hoverMove事件
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*/
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virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *pEvent);
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/**
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* @brief 重写该虚函数，实现鼠标覆盖离开操作
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* @param[in] pEvent 鼠标hoverLeave事件
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*/
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virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *pEvent);
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/**
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* @brief 重写该虚函数，实现鼠标释放操作
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* @param[in] pEvent 鼠标mouseRelease事件
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*/
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virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *pEvent);
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/**
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* @brief 实现该虚函数，绘制模块工具栏
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* @param[in] pPainter 画笔
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* @param[in] pOption 模块风格参数
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* @param[in] pWidget 画布
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*/
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virtual void paint(QPainter *pPainter, const QStyleOptionGraphicsItem *pOption, QWidget *pWidget = NULL);
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private:
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QList<QPixmap> m_pixmaps; ///< 图片
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QList<QRectF> m_ButtonRects; ///< 按钮区域
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QGraphicsOpacityEffect m_OpacityEffect; ///< 透明效果
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int m_HoverButtonIndex; ///< hover按钮的索引
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ModuleGraphicsItem *m_pModuleItem; ///< 模块
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bool m_hovering; ///< hover标志
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bool m_ScenceReadOnly; ///< 所处场景是否只读
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};
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}
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}
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#endif ///< PAI_FRAME_WORKFLOWWIDGET_MODULETOOLBARGRAPHICSITEM_H
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