这一篇实现按钮控件的实现.
实现按钮的响应功能无非就是建立信号与槽,这里不能使用右键->转到槽的操作,原因如下.
首先在mainwindow.cpp中写connect函数,因为按钮按下启动计时器工作,所以接收信号者并非this而是this->scene,
connect(ui->btn_start,&QPushButton::clicked,this->scene,&myScene::startGame);
connect(ui->btn_pause,&QPushButton::clicked,this->scene,&myScene::pauseGame);
connect(ui->btn_end,&QPushButton::clicked,this->scene,&myScene::stopGame);
startGame函数定义如下:
void myScene::startGame()
{
this->ptimer->start(800);
}
由此,依次编写停止键和终止键
void myScene::pauseGame()
{
this->ptimer->stop();
}
void myScene::stopGame()
{
this->ptimer->stop();
//每次重置背景
for(int i = 0; i < 16; i++){
this->item[i]->setPic(":/background/bg1.png");}
}
这是已经实现了按钮控件的操作,但是鼠标事件应该只发生在开始键按下时,停止键和结束键都不应该产生响应,故添加
void myitem::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if(this->isStart()){
if(this->isMouse()){
qDebug() << "mouse";
}else {
qDebug() << "notmouse";
}
}
}
下一篇时打地鼠的终结篇,实现分数的显示,敬请期待
标签:控件,GitHub,Qt,void,scene,connect,按钮,myScene From: https://blog.51cto.com/u_13875041/5878131