qt页面布局类的小demo

喜欢ヅ旅行 2022-11-12 13:57 167阅读 0赞

#ifndef MAINWINDOW_H
    #define MAINWINDOW_H
    
    #include <QMainWindow>
    #include<QPushButton>
    #include<QHBoxLayout>
    #include<QtWidgets>
    
    namespace Ui {
    class MainWindow;
    }
    
    class MainWindow : public QMainWindow
    {
        Q_OBJECT
    
    public:
        explicit MainWindow(QWidget *parent = nullptr);
        ~MainWindow();
    
    private:
        Ui::MainWindow *ui;
        QPushButton *pq_returnBtn , *pq_okBtn;
        QHBoxLayout* pq_hBoxLayout;
        QWidget *widget;
    };
    
    #endif // MAINWINDOW_H

#include "mainwindow.h"
    #include "ui_mainwindow.h"
    
    
    MainWindow::MainWindow(QWidget *parent) :
        QMainWindow(parent),
        ui(new Ui::MainWindow)
    {
        ui->setupUi(this);
    
        this->setStyleSheet("QWidget:focus{outline: none;}");
        pq_returnBtn = new QPushButton(this);
        pq_returnBtn->setStyleSheet("QPushButton{width:1px;height:1px; }"
                                    "QPushButton:focus{width:1px;height:1px; }");
        pq_returnBtn->setText("button");
    
        pq_okBtn = new QPushButton(this);
        pq_okBtn->setText("ok");
    
    
        widget = new QWidget();
        this->setCentralWidget(widget);
    
        // 布局状态栏
        pq_hBoxLayout = new QHBoxLayout();
        pq_hBoxLayout->addWidget(pq_okBtn);
        // 水平布局中加入弹簧
        pq_hBoxLayout->addStretch();
        pq_hBoxLayout->addWidget(pq_returnBtn);
    
        // 水平布局内容边距设为0
    //    pq_hBoxLayout->setContentsMargins(20,0,20,0);
        widget->setLayout(pq_hBoxLayout);
        widget->show();
    }
    
    MainWindow::~MainWindow()
    {
        delete pq_returnBtn;
        delete pq_hBoxLayout;
        delete widget;
        delete ui;
    }

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