Qt菜单QMenu和菜单栏QMenuBar基本用法和自定义菜单用法总结.zip

#include "widget.h" #include "ui_widget.h" #include "qmywidgetaction.h" #include "qmymenu.h" #include <QWidgetAction> #include <QMenu> #include <QAction> #include <QMenuBar> #include <QVBoxLayout> Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); setupUI(); } void Widget::setupUI() { ui->verticalLayout->addStretch(); } Widget::~Widget() { delete ui; } void Widget::on_pushButton_clicked() { QMenu *menu=new QMenu("菜单:常规"); QAction *action1=new QAction(QIcon(":/resource/image/向右箭头.jpg"),"action1"); QAction *action2=new QAction(QIcon(":/resource/image/向右箭头.jpg"),"action2"); QList<QAction*> list; list.append(action1); list.append(action2); menu->addActions(list); QMenuBar *menuBar=new QMenuBar; menuBar->addMenu(menu); menuBar->addSeparator(); ui->verticalLayout->addWidget(menuBar); } void Widget::on_pushButton_2_clicked() { QMenu *menu=new QMenu("菜单:当Widget用，添加一个布局"); QAction *action1=new QAction(QIcon(":/resource/image/向右箭头.jpg"),"action1"); QAction *action2=new QAction(QIcon(":/resource/image/向右箭头.jpg"),"action2"); QList<QAction*> list; list.append(action1); list.append(action2); QVBoxLayout *vlayout=new QVBoxLayout; vlayout->setContentsMargins(10,0,10,0); QPushButton *button1=new QPushButton("11"); vlayout->addWidget(button1); menu->setLayout(vlayout); QMenuBar *menuBar=new QMenuBar; menuBar->addMenu(menu); menuBar->addSeparator(); ui->verticalLayout->addWidget(menuBar); } void Widget::on_pushButton_3_clicked() { QMyMenu *menu= new QMyMenu("菜单:继承QWidgetAction用法"); QAction *action1=new QAction(QIcon(":/resource/image/向右箭头.jpg"),"1"); //设置图标和内容 menu->addAction(action1); QMyWidgetAction *myWidgetAction=new QMyWidgetAction(menu); menu->addSeparator(); //添加分割线 menu->addAction(myWidgetAction); QMenuBar *menuBar=new QMenuBar(this); menuBar->setStyleSheet("QMenuBar{background-color:red}" "QMenuBar:hover{background-color:blue}"); menuBar->addMenu(menu); ui->verticalLayout->addWidget(menuBar); ui->verticalLayout->addStretch(); }