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mainwindow.cpp
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mainwindow.cpp
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#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDesktopWidget>
#include <QTimer>
#include <QDateTime>
#include <cmath>
#include <QDebug>
#include <QWindow>
// http
#include <QUrlQuery>
#include <QNetworkRequest>
#include <QNetworkReply>
// Json
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <QFile>
#include <xcb/xcb.h>
#include <X11/Xlib.h>
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);
setWindowFlag(Qt::WindowTransparentForInput, true);
// 设置定时事件用于更新数据
m_updateTimeTimer = new QTimer();
connect(m_updateTimeTimer, &QTimer::timeout, this, &MainWindow::ChangeInformation);
m_updateTimeTimer->setInterval(500);
m_updateTimeTimer->start();
// 记录初始运行时间
firstRunTime = QDateTime::currentDateTime();
// 设置屏保背景
this->setStyleSheet("#MainWindow {border-image: url(:/Background/background.jpg);} * {color: white;}");
// 添加退出按钮(已废弃)
/*QLabel *exitButton = new QLabel("<a style='text-decoration: none; color: white;' href='https://www.gfdgdxi.top'>" + tr("退出") + "</a>");
// 使用超链接实现 QLabel 点击事件
connect(exitButton, &QLabel::linkActivated, this, [this](){
this->ExitScreenSaver();
});
exitButton->setAlignment(Qt::AlignRight);
ui->m_timeLayout->addWidget(exitButton, 0, 0);*/
// 判断系统是否为 GXDE
if(QFile::exists("/etc/profile.d/gxde.sh")) {
// 如果是则显示 logo
ui->m_iconShow->setMinimumWidth(ui->m_iconShow->height()); // 以便可以正确显示图标
}
else {
ui->m_iconShow->setVisible(false);
ui->m_systemName->setText("©2023~" + QDateTime::currentDateTime().toString("yyyy") + " gfdgd xi");
ui->m_systemName->setAlignment(Qt::AlignBottom);
}
// 句子更新 QTimer
m_updateSentencesTimer = new QTimer();
m_updateSentencesTimer->setInterval(60 * 1000);
connect(m_updateSentencesTimer, &QTimer::timeout, this, &MainWindow::ChangePoem);
m_updateSentencesTimer->start();
// 读取离线词库
QFile sentence(":/Poem/poem.json");
sentence.open(QFile::ReadOnly);
offLineSentence = QJsonDocument::fromJson(sentence.readAll()).array();
offLineSentence_count = offLineSentence.count(); // 提前计算数据以减少损耗
sentence.close();
ChangePoem();
}
QSize MainWindow::mapFromHandle(const QSize &handleSize)
{
qreal ratio = devicePixelRatioF();
qDebug() << "parent window handle size" << handleSize << "devicePixelRatio" << ratio;
if (ratio > 0 && ratio != 1.0)
return handleSize / ratio;
else
return handleSize;
}
bool MainWindow::nativeEventFilter(const QByteArray &eventType, void *message, long *result)
{
Q_UNUSED(result);
if (eventType == "xcb_generic_event_t") {
xcb_generic_event_t *event = reinterpret_cast<xcb_generic_event_t *>(message);
int type = (event->response_type & ~0x80);
if (XCB_CONFIGURE_NOTIFY == type) {
xcb_configure_notify_event_t *ce = reinterpret_cast<xcb_configure_notify_event_t *>(event);
qInfo() << "parent window size changed" << ce->width << ce->height;
QSize widSize = mapFromHandle(QSize(ce->width, ce->height));
if (widSize != size()) {
qInfo() << "update window size:" << widSize;
resize(widSize);
}
} else if (XCB_DESTROY_NOTIFY == type) {
xcb_destroy_notify_event_t *ce = reinterpret_cast<xcb_destroy_notify_event_t *>(event);
if (ce->window == Window(this->windowHandle()->winId())) {
qInfo() << "parent window closed";
QMetaObject::invokeMethod(this, "close", Qt::QueuedConnection);
}
}
}
return false;
}
void MainWindow::ChangePoem()
{
QUrl url("https://v1.hitokoto.cn/?c=d&c=i&c=k");
QUrlQuery query;
query.addQueryItem("type", "DESKDICT");
query.addQueryItem("c", "d");
query.addQueryItem("c", "i");
query.addQueryItem("c", "k");
query.addQueryItem("num", "4");
query.addQueryItem("ver", "2.0");
query.addQueryItem("le", "eng");
query.addQueryItem("doctype", "json");
url.setQuery(query.toString(QUrl::FullyEncoded));
qDebug() << url;
QNetworkRequest request(url);
QNetworkAccessManager *m_http = new QNetworkAccessManager(this);
QNetworkReply *reply = m_http->get(request);
connect(reply, &QNetworkReply::finished, this, [this, m_http](){
QNetworkReply *reply = qobject_cast<QNetworkReply *>(sender());
if (reply->error() != QNetworkReply::NoError) {
qDebug() << reply->errorString();
GetSentenceOffLine(); // 如果无法访问则使用离线数据库
return;
}
QByteArray data = reply->readAll();
qDebug() << data;
// 解析数据
// 数据例子:
/*
{
"id": 6256,
"uuid": "b2f3834f-5f52-4b62-bb3c-f9fb98901419",
"hitokoto": "我们在努力扩大自己,以靠近,以触及我们自身以外的世界。",
"type": "k",
"from": "豪尔赫·路易斯·博尔赫斯",
"from_who": "博尔赫斯谈话录",
"creator": "Irony",
"creator_uid": 4464,
"reviewer": 1044,
"commit_from": "web",
"created_at": "1592126239",
"length": 27
}*/
QJsonDocument document = QJsonDocument::fromJson(data);
QJsonObject object = document.object();
QJsonValue hitokoto = object.value("hitokoto");
QJsonValue from = object.value("from");
QJsonValue from_who = object.value("from_who");
this->ShowPoemText(hitokoto, from, from_who);
delete m_http;
});
}
void MainWindow::ShowPoemText(QJsonValue hitokoto, QJsonValue from, QJsonValue from_who)
{
// 显示文本
QString showText = "<p>" + hitokoto.toString() + "</p><p align='right'>";
QString who = "";
if (!from.isNull()) {
who += "《" + from.toString() + "》";
}
if (!from_who.isNull()) {
who += from_who.toString();
}
if (who.length() > 0) {
// 有内容,添加破折号
who = "——" + who;
}
showText += who + "</p>";
ui->m_poem->setText(showText);
}
void MainWindow::GetSentenceOffLine()
{
// 通过随机数随机选择句子
srand(time(0)); // 使用时间种子
int id = rand() % (offLineSentence_count - 1) + 1;
QJsonObject object = offLineSentence.at(id).toObject();
QJsonValue hitokoto = object.value("hitokoto");
QJsonValue from = object.value("from");
QJsonValue from_who = object.value("from_who");
this->ShowPoemText(hitokoto, from, from_who);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::ChangeInformation()
{
QDateTime time = QDateTime::currentDateTime();
// 显示当前时间
ui->m_time->setText("<h1>" + time.toString("hh:mm:ss") + "</h1><p>" + time.toString("yyyy/MM/dd dddd") + "</p>");
// 获取相差秒数
int second = firstRunTime.secsTo(time);
int minute = second / 60 % 60;
int hour = second / 60 / 60;
// 计算位数
if(hour >= 100) {
// 大于 100 才进行计算,否则均默认 2 位
// 使用 lg(x) 进行计算
ui->m_hourTime->setDigitCount(log10(hour) + 1);
}
ui->m_hourTime->display(hour);
ui->m_minTime->display(minute);
ui->m_secondTime->display(second % 60);
}
void MainWindow::ExitScreenSaver()
{
// 关闭 QTimer
this->m_updateTimeTimer->stop();
this->close();
exit(0);
}
void MainWindow::on_m_exitButton_clicked()
{
ExitScreenSaver();
}