想做下面一个效果:想当鼠标移动到按钮上的时候,按钮就变大,图标换个大的,鼠标不在按钮上的时候,按钮就变小,图标也换成小的,感觉比较Cool
实现原理:为每个按钮设置监听属性
void MainHomeForm::init() { //为按钮注册事件 ui->SystemSetButton->installEventFilter(this); ui->ZoneSetButton->installEventFilter(this); }
//系统监听器监听按钮对象 bool MainHomeForm::eventFilter(QObject *target, QEvent *e) { if(target == ui->SystemSetButton) { if(e->type() == QEvent::Enter) { ui->SystemSetButton->resize(163,91); QIcon *MouseOnIcon = new QIcon(":/new/prefix1/back/系统设置2.png"); ui->SystemSetButton->setIcon(*MouseOnIcon); } else if(e->type() == QEvent::Leave) { ui->SystemSetButton->resize(115,60); QIcon *MouseOffIcon = new QIcon(":/new/prefix1/back/系统设置.png"); ui->SystemSetButton->setIcon(*MouseOffIcon); } } else if(target == ui->ZoneSetButton) { if(e->type() == QEvent::Enter) { ui->ZoneSetButton->resize(163,91); QIcon *MouseOnIcon = new QIcon(":/new/prefix1/back/区域控制2.png"); ui->ZoneSetButton->setIcon(*MouseOnIcon); } else if(e->type() == QEvent::Leave) { ui->ZoneSetButton->resize(115,60); QIcon *MouseOffIcon = new QIcon(":/new/prefix1/back/区域控制.png"); ui->ZoneSetButton->setIcon(*MouseOffIcon); } } }
搞定,首先绑定按钮的installEventFilter为当前窗体,在窗体的EventFilter事件中,看移到了哪个按钮上面,就可以了。
还有一种就是,当鼠标按下去的时候,移动到按钮上面才会有变化:
//跟踪鼠标移动事件,当鼠标移动到中间的按钮上时,改变图标大小和内容 void MainHomeForm::mouseMoveEvent(QMouseEvent *e) { e->accept(); if(enterBtn(e->pos(),ui->SystemSetButton)) { ui->SystemSetButton->setSizeIncrement(163,91); QIcon *MouseOnIcon = new QIcon(":/new/prefix1/back/系统设置2.png"); ui->SystemSetButton->setIcon(*MouseOnIcon); } } //自己写的函数,判断鼠标是否在一个按钮区域内 bool MainHomeForm::enterBtn(QPoint pp, QToolButton *btn) { int height = btn->height(); int width = btn->width(); QPoint btnMinPos = btn->pos(); QPoint btnMaxPos = btn->pos(); btnMaxPos.setX(btn->pos().x()+width); btnMaxPos.setY(btn->pos().y()+height); if(pp.x() >= btnMinPos.x() && pp.y() >= btnMinPos.y() && pp.x() <= btnMaxPos.x() && pp.y() <= btnMaxPos.y()) return true; else return false; }
时间: 2024-10-13 21:25:26