QStackedLayout栈布局小案例

一、概述

　　使用QStackedLayout+QListWidget切换布局。如下：

二、示例

#include "StackedLayoutExampleWindow.h"

StackedLayoutExampleWindow::StackedLayoutExampleWindow(QWidget *parent)
    : QWidget(parent)
{
    this->setWindowTitle("StackedLayout布局");
    
    //创建主容器
    QHBoxLayout* hLayout = new QHBoxLayout;
    //创建一个ListWidget（列表）
    QListWidget* listWidget = new QListWidget(this);
    listWidget->setMinimumWidth(150);
    listWidget->setFont(QFont("宋体", 14));
    listWidget->addItem("添加Button");
    listWidget->addItem("添加图片");

    QWidget* widget1 = new QWidget(this);//第一个栈容器的内容
    widget1->setMinimumSize(400, 400);
    Button* but1 = new Button(widget1);
    but1->setText("提莫队长正在待命");

    QWidget* widget2 = new QWidget(this);//第二个栈容器的内容
    widget2->setMinimumSize(400, 400);
    QLabel* image = new QLabel(widget2);
    image->setScaledContents(true);
    image->setFixedSize(400, 400);
    cv::Mat src = imread("images/flowers.jpeg");
    image->setPixmap(ImageUtils::getPixmap(src));

    QStackedLayout* stackedLayout = new QStackedLayout;//栈布局
    stackedLayout->addWidget(widget1);
    stackedLayout->addWidget(widget2);

    hLayout->addWidget(listWidget, 1);//左边容器布局占整个容器的1/5
    hLayout->addLayout(stackedLayout, 4);//右边容器布局，占整个容器的4/5

    //把布局添加到Widget中
    this->setLayout(hLayout);

    //给listWidget添加事件，监听QListWidget::currentRowChanged信号，&QStackedLayout::setCurrentIndex槽函数
    connect(listWidget, &QListWidget::currentRowChanged, stackedLayout, &QStackedLayout::setCurrentIndex);
}

StackedLayoutExampleWindow::~StackedLayoutExampleWindow()
{
}