QT实现Mvp设计模式Demo

#include "view.h" #include <QVBoxLayout> View::View(QWidget *parent) : QWidget(parent) { this->resize(800,600); //设置窗口大小 //设置背景色 QPalette palette(this->palette()); palette.setColor(QPalette::Background, Qt::lightGray); this->setPalette(palette); // 创建一个QFont对象，设置字体 label.setFont(QFont("微软雅黑",42,QFont::Bold)); // 设置对齐方式为居中对齐 label.setAlignment(Qt::AlignCenter); // 设置文本内容 label.setText("Hello MVP!"); // 显示图片 image_label.setScaledContents(true); //show all image_label.setPixmap(QPixmap("D:/WorkSpace/QT/MvpTest/picture_normal.jpg")); //设置按钮内容 button.setText("Click me!"); button.setStyleSheet("QPushButton { background-color: white; color: black; }"); button.resize(50,30); //排版 QVBoxLayout* layout = new QVBoxLayout(this); layout->addWidget(&label); layout->addWidget(&image_label); layout->addWidget(&button); connect(&button, &QPushButton::clicked, this, &View::buttonClicked); } void View::update_image(const std::string path) { image_label.setScaledContents(true); //show all image_label.setPixmap(QPixmap(QString::fromStdString(path))); } void View::update_message(const std::string data) { label.setText(QString::fromStdString(data)); } void View::buttonClicked() { label.setText(QString::fromStdString(model->get_data())); }