qt signals slots emit connetc

将信号和槽绑定

connect(&p->palette, &ColorPalette::colorsChanged, this, &Swatch::paletteModified);

 

发射信号

 

emit colorsChanged(p->colors);

 

信号

 

signals:

/**

* \brief Emitted when all the colors have changed

*/

void colorsChanged(const QVector<QPair<QColor,QString> >&);

 

槽

 

protected slots:

/**

* \brief Connected to the internal palette object to keep eveything consistent

*/

void paletteModified();