使用QT实现自定义类卡牌控件Card，使其能在父类窗口上使用鼠标进行拖动。 控件类头文件card.h #ifndef CARD_H #define CARD_H #include <QWidget> #include <QPaintEvent> #include <QPainter> #include <QMouseEvent> class Card:public QWidget { Q_OBJECT public: explicit Card(QWidget *parent = nullptr); ~Card(); protected: void paintEvent(QPaintEvent *event) override; void mousePressEvent(QMouseEvent *event) override; signals: void sendSelf(Card *w); }; #endif // CARD_H 控件类头文件card.cpp #include "card.h" Card::Card(QWidget...
