DAStandardNodeInputOutputGraphicsItem.h

#ifndef DASTANDARDNODEINPUTOUTPUTGRAPHICSITEM_H
#define DASTANDARDNODEINPUTOUTPUTGRAPHICSITEM_H
#include "DAAbstractNodeGraphicsItem.h"
#include <functional>
#include <QPixmap>
namespace DA
{
class DAWORKFLOW_API DAStandardNodeInputOutputGraphicsItem : public DAAbstractNodeGraphicsItem
{
public:
    DAStandardNodeInputOutputGraphicsItem(DA::DAAbstractNode* n, QGraphicsItem* p = nullptr);
    ~DAStandardNodeInputOutputGraphicsItem();
    // 计算尺寸，根据输入输出进行尺寸计算
    QSize calcSize() const;
    // 绘制具体内容
    virtual void paintBody(QPainter* painter,
                           const QStyleOptionGraphicsItem* option,
                           QWidget* widget,
                           const QRectF& bodyRect) override;
    // 获取连接点尺寸
    QSize getLinkpointSize() const;
    // 节点名字改变的回调
    virtual void nodeDisplayNameChanged(const QString& name);
    // 允许一个节点多次链接
    void setEnableMultLink(bool on);
    bool isEnableMultLink() const;
    // 设置在中间显示icon，icon以node的icon来显示
    void setEnableShowIcon(bool on);
    bool isEnableShowIcon() const;
    // 设置icon的尺寸
    void setIconSize(const QSize& s);
    QSize getIconSize() const;
 
protected:
    // 绘制显示名字
    void paintDisplayName(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget, const QString& name);
    void paintIcon(QPainter* painter,
                   const QStyleOptionGraphicsItem* option,
                   QWidget* widget,
                   const QRectF& bodyRect,
                   const QPixmap& pixmap);
    // 绘制图标
    QPixmap generateIcon();
 
private:
    QString mDisplayName;
    bool mEnableShowIcon { true };
    QSize mIconSize { 20, 20 };
    QPixmap mIconPixmap;
};
}
#endif  // DASTANDARDNODEINPUTOUTPUTGRAPHICSITEM_H