自定义按钮，鼠标移入、移出、摁下，分别改变按钮图标样式原理和代码总结（上图标下文字、hover、QSS样式表、QPushbutt...

#include "qcustombutton.h" #include <QVBoxLayout> QCustomButton::QCustomButton(QWidget *parent) : QPushButton(parent) { imageLbl=new QLabel(this); imageLbl->setObjectName("imageLbl");//QCustomButton imageLbl imageLbl->setFixedSize(55,55); imageLbl->setStyleSheet(QString("QLabel{background-color:rgba(243,62,32,0.5);}"));//QCustomButton textLbl=new QLabel; textLbl->setObjectName("textLbl"); textLbl->setStyleSheet("QLabel{background-color:rgba(243,62,32,1);}"); QVBoxLayout *mainLayout=new QVBoxLayout; mainLayout->addWidget(imageLbl,0,Qt::AlignCenter); mainLayout->addWidget(textLbl,0,Qt::AlignCenter); mainLayout->setSpacing(10); this->setLayout(mainLayout); } void QCustomButton::setImageLbl(const QPixmap &pixmap) { imageLbl->setPixmap(pixmap); imageLbl->setScaledContents(true); } void QCustomButton::setNormalImagePath(const QPixmap &pixmap) { normalImage=pixmap; } void QCustomButton::setHoverImagePath(const QPixmap &pixmap) { hoverImage=pixmap; } void QCustomButton::setPressedImagePath(const QPixmap &pixmap) { pressedImage=pixmap; } void QCustomButton::setTextLbl(QString text) { textLbl->setText(text); } QLabel *QCustomButton::getImageHandle() { return imageLbl; } QLabel *QCustomButton::getTextHandle() { return textLbl; } bool QCustomButton::event(QEvent *e) { if(this->isChecked()) return QWidget::event(e); switch (e->type()) { case QEvent::Enter: {//鼠标进入事件 setImageLbl(hoverImage); return true; break; } case QEvent::MouseButtonPress: {//鼠标摁下事件 setImageLbl(pressedImage); this->setChecked(true); return true; break; } case QEvent::Leave: {//鼠标离开事件 setImageLbl(normalImage); return true; break; } default: break; } return QWidget::event(e); }