Idea/src/home.cpp

#include "home.h"
#include "ui_home.h"
#include "login.h"
#include "book.h"
#include "search.h"
#include "recommend.h"
#include "person.h"
#include "communication.h"



Home::Home(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::Home)
{
    ui->setupUi(this);
/*
    QPixmap myPix(":/image/猫猫狗勾.png");
    ui->cat_and_dog->setPixmap(myPix);
    ui->cat_and_dog->setScaledContents(true);
    ui->cat_and_dog->show();

    QPixmap myPix2(":/image/框.png");
    ui->option->setPixmap(myPix2);
    ui->option->setScaledContents(true);
    ui->option->show();

    QPixmap myPix3(":/image/框里的背景.png");
    ui->option2->setPixmap(myPix3);
    ui->option2->setScaledContents(true);
    ui->option2->show();

    // 对单个控件;
    ui->button_to_book->setStyleSheet("QPushButton{border-radius:5px;background:rgb(255,167,43);color:black;}");
    ui->button_to_search->setStyleSheet("QPushButton{border-radius:5px;background:rgb(255,167,43);color:black;}");
    ui->button_to_recommdend->setStyleSheet("QPushButton{border-radius:5px;background:rgb(255,167,43);color:black;}");
    ui->button_to_person->setStyleSheet("QPushButton{border-radius:5px;background:rgb(255,167,43);color:black;}");
    ui->button_to_log->setStyleSheet("QPushButton{border-radius:5px;background:rgb(255,167,43);color:black;}");
*/
    ui->button_to_book->setStyleSheet("QPushButton{background:rgb(250,234,142);}");
    ui->button_to_book->setAttribute(Qt::WA_Hover,true);
    ui->button_to_book->installEventFilter(this);       //安装事件过滤器

    ui->button_to_recommdend->setStyleSheet("QPushButton{background:rgb(250,234,142);}");
    ui->button_to_recommdend->setAttribute(Qt::WA_Hover,true);
    ui->button_to_recommdend->installEventFilter(this);       //安装事件过滤器

    ui->button_to_person->setStyleSheet("QPushButton{background:rgb(250,234,142);}");
    ui->button_to_person->setAttribute(Qt::WA_Hover,true);
    ui->button_to_person->installEventFilter(this);

    ui->to_communication->setStyleSheet("QPushButton{background:rgb(250,234,142);}");
    ui->to_communication->setAttribute(Qt::WA_Hover,true);
    ui->to_communication->installEventFilter(this);

    ui->button_to_log->setStyleSheet("QPushButton{background:rgb(250,234,142);}");
    ui->button_to_log->setAttribute(Qt::WA_Hover,true);
    ui->button_to_log->installEventFilter(this);
}

bool Home::eventFilter(QObject *obj, QEvent *event)
{
    if(obj == ui->button_to_book) {
        if(event->type() == QEvent::HoverEnter) {

            QPixmap icon1(tr(":/image/阅览-悬浮框.png"));
            ui->button_to_book->setStyleSheet("QPushButton{background:rgb(250,234,142);}");
            ui->button_to_book->setIcon(icon1);
            ui->button_to_book->setIconSize(QSize(260, 130));
            ui->button_to_book->setFixedSize(icon1.size());
            return true;
        }
        if(event->type() == QEvent::HoverLeave) {
            QPixmap icon2(tr(":/image/阅览-图标.png"));
            ui->button_to_book->setIcon(icon2);
            ui->button_to_book->setFixedSize(61,51);
            ui->button_to_book->setIconSize(QSize(90,90));
            ui->button_to_book->setFixedSize(icon2.size());
            return true;
        }
    }

    if(obj == ui->button_to_recommdend) {
        if(event->type() == QEvent::HoverEnter) {

            QPixmap icon1(tr(":/image/测试-悬浮框.png"));
            ui->button_to_recommdend->setStyleSheet("QPushButton{background:rgb(250,234,142);}");
            ui->button_to_recommdend->setIcon(icon1);
            ui->button_to_recommdend->setIconSize(QSize(260, 130));
            ui->button_to_recommdend->setFixedSize(icon1.size());
            return true;
        }
        if(event->type() == QEvent::HoverLeave) {
            QPixmap icon2(tr(":/image/测试-图标.png"));
            ui->button_to_recommdend->setIcon(icon2);
            ui->button_to_recommdend->setFixedSize(61,51);
            ui->button_to_recommdend->setIconSize(QSize(90,90));
            ui->button_to_recommdend->setFixedSize(icon2.size());
            return true;
        }
    }

    if(obj == ui->button_to_person) {
        if(event->type() == QEvent::HoverEnter) {

            QPixmap icon1(tr(":/image/我的-悬浮框.png"));
            ui->button_to_person->setStyleSheet("QPushButton{background:rgb(250,234,142);}");
            ui->button_to_person->setIcon(icon1);
            ui->button_to_person->setIconSize(QSize(260, 130));
            ui->button_to_person->setFixedSize(icon1.size());
            return true;
        }
        if(event->type() == QEvent::HoverLeave) {
            QPixmap icon2(tr(":/image/我的-图标.png"));
            ui->button_to_person->setIcon(icon2);
            ui->button_to_person->setFixedSize(61,51);
            ui->button_to_person->setIconSize(QSize(90,90));
            ui->button_to_person->setFixedSize(icon2.size());
            return true;
        }
    }

    if(obj == ui->to_communication) {
        if(event->type() == QEvent::HoverEnter) {

            QPixmap icon1(tr(":/image/社区-悬浮框.png"));
            ui->to_communication->setStyleSheet("QPushButton{background:rgb(250,234,142);}");
            ui->to_communication->setIcon(icon1);
            ui->to_communication->setIconSize(QSize(260, 130));
            ui->to_communication->setFixedSize(icon1.size());
            return true;
        }
        if(event->type() == QEvent::HoverLeave) {
            QPixmap icon2(tr(":/image/社区-图标.png"));
            ui->to_communication->setIcon(icon2);
            ui->to_communication->setFixedSize(61,51);
            ui->to_communication->setIconSize(QSize(90,90));
            ui->to_communication->setFixedSize(icon2.size());
            return true;
        }
    }

    if(obj == ui->button_to_log) {
        if(event->type() == QEvent::HoverEnter) {

            QPixmap icon1(tr(":/image/退出2.png"));
            ui->button_to_log->setStyleSheet("QPushButton{background:rgb(250,234,142);}");
            ui->button_to_log->setIcon(icon1);
            ui->button_to_log->setIconSize(QSize(260, 130));
            ui->button_to_log->setFixedSize(icon1.size());
            return true;
        }
        if(event->type() == QEvent::HoverLeave) {
            QPixmap icon2(tr(":/image/退出1.png"));
            ui->button_to_log->setIcon(icon2);
            ui->button_to_log->setFixedSize(61,51);
            ui->button_to_log->setIconSize(QSize(90,90));
            ui->button_to_log->setFixedSize(icon2.size());
            return true;
        }
    }

    return QWidget::eventFilter(obj,event);
}


Home::~Home()
{
    delete ui;
}

void Home::on_button_to_log_clicked()
{
    login* to_log = new login; 
    to_log->login_set_background();
    to_log->show();
    delete this;
}

void Home::set_background()
{
    this->setWindowTitle("主界面");

    //ui->label->setText("欢迎来到");
    //ui->label->setStyleSheet("color:red");//文本颜色
    //ui->label_2->setStyleSheet("color:red");

   // ui->label->setStyleSheet("background-color:red");//背景色

    this->setMinimumSize(1280,720);
    this->setMaximumSize(1280,720);

    this->setAutoFillBackground(true);
    QPalette palette;
    QPixmap pixmap = QPixmap(":/image/背景-3.png").scaled(this->size());
    palette.setBrush(QPalette::Window, QBrush(pixmap));
    this->setPalette(palette);


}

void Home::on_button_to_book_clicked()
{
    Book* to_book = new Book;
    to_book->book_set_background();
    to_book->show();
    delete this;
}



void Home::on_button_to_recommdend_clicked()
{
    recommend* to_recommend = new recommend;
    to_recommend->recommend_set_background();
    to_recommend->show();
    delete this;

}

void Home::on_button_to_person_clicked()
{
    person* to_person = new person;
    to_person->person_set_background();
    to_person->show();
    delete this;

}

void Home::on_to_communication_clicked()
{
    Communication *new_communication = new Communication;
    new_communication->set_background();
    new_communication->show();
    delete this;
}