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// ai.cpp
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#include "ai.h"
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#include "ui_ai.h"
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#include <QVBoxLayout>
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#include <QHBoxLayout>
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#include <QFileDialog>
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#include <QNetworkRequest>
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#include <QFile>
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#include <QNetworkReply>
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#include <QUrl>
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#include <QJsonDocument>
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#include <QJsonObject>
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#include <QJsonArray>
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#include <QMovie>
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#include <QtTextToSpeech/QTextToSpeech>
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#include <QBuffer>
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#include <QString>
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#include "message.h"
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#include <QSqlQuery>
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#include <QSqlDatabase>
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#include <QMessageBox>
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#include "choose.h"
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ai::ai(QWidget *parent, choose* choosePage)
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: QWidget(parent),
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ui(new Ui::ai),
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choosePage(choosePage)
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{
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// 显示车牌图片
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lb_pix = new QLabel;
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lb_pix->setFixedSize(490, 350);
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lb_pix->setScaledContents(true);
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// 加载并显示名为 'fen.png' 的图片
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QPixmap pixmap(":/fen.png"); // 假设图片文件已添加到 Qt 的资源文件中
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pixmap = pixmap.scaled(lb_pix->size(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
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lb_pix->setPixmap(pixmap);
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// 设置窗口的背景图片
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lb_pix->setStyleSheet("background-image: url(:/fen.png);"
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"background-position: center;"
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"background-repeat: no-repeat;"
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"background-size: cover;");
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// 设置载入车牌按钮
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btn_load = new QPushButton("载入车牌");
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btn_load->setFixedSize(90, 45);
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btn_load->setStyleSheet("QPushButton {"
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"background-color: qlineargradient(spread:pad, x1:0.52, y1:1, x2:0.54, y2:0, "
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"stop:0.0112994 rgba(173, 216, 230, 255), "
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"stop:1 rgba(204, 229, 255, 255)); "
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"color: rgb(255, 255, 255); "
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"border: 2px solid rgba(170, 255, 255, 200); "
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"border-radius: 10px; "
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"padding: 5px 10px; "
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"font: 16pt \"Candara\"; "
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"box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);"
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"}"
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"QPushButton:hover {"
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"background-color: qlineargradient(spread:pad, x1:0.52, y1:1, x2:0.54, y2:0, "
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"stop:0.0112994 rgba(204, 229, 255, 255), "
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"stop:1 rgba(173, 216, 230, 255)); "
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"border: 2px solid rgba(173, 216, 230, 255);"
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"}"
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"QPushButton:pressed {"
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"background-color: rgba(204, 229, 255, 150); "
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"box-shadow: inset 0px 0px 5px rgba(0, 0, 0, 0.2);"
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"}");
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// 设置识别按钮
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btn_decode = new QPushButton("识别");
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btn_decode->setFixedSize(90, 45);
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btn_decode->setStyleSheet("QPushButton {"
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"background-color: qlineargradient(spread:pad, x1:0.52, y1:1, x2:0.54, y2:0, "
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"stop:0.0112994 rgba(173, 216, 230, 255), "
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"stop:1 rgba(204, 229, 255, 255)); "
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"color: rgb(255, 255, 255); "
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"border: 2px solid rgba(170, 255, 255, 200); "
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"border-radius: 10px; "
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"padding: 5px 10px; "
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"font: 16pt \"Candara\"; "
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"box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);"
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"}"
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"QPushButton:hover {"
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"background-color: qlineargradient(spread:pad, x1:0.52, y1:1, x2:0.54, y2:0, "
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"stop:0.0112994 rgba(204, 229, 255, 255), "
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"stop:1 rgba(173, 216, 230, 255)); "
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"border: 2px solid rgba(173, 216, 230, 255);"
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"}"
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"QPushButton:pressed {"
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"background-color: rgba(204, 229, 255, 150); "
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"box-shadow: inset 0px 0px 5px rgba(0, 0, 0, 0.2);"
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"}");
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// ---- 返回箭头按钮 ----
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btn_back = new QPushButton("返回", this);
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btn_back->setFixedSize(40, 30);
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btn_back->setStyleSheet("QPushButton {"
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"background-color: qlineargradient(spread:pad, x1:0.52, y1:1, x2:0.54, y2:0, "
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"stop:0.0112994 rgba(173, 216, 230, 255), "
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"stop:1 rgba(204, 229, 255, 255)); "
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"color: rgb(255, 255, 255); "
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"border: 2px solid rgba(170, 255, 255, 200); "
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"border-radius: 10px; "
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"padding: 2px 2px; "
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"font: 13pt \"Candara\"; "
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"box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);"
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"}"
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"QPushButton:hover {"
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"background-color: qlineargradient(spread:pad, x1:0.52, y1:1, x2:0.54, y2:0, "
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"stop:0.0112994 rgba(204, 229, 255, 255), "
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"stop:1 rgba(173, 216, 230, 255)); "
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"border: 2px solid rgba(173, 216, 230, 255);"
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"}"
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"QPushButton:pressed {"
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"background-color: rgba(204, 229, 255, 150); "
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"box-shadow: inset 0px 0px 5px rgba(0, 0, 0, 0.2);"
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"}");
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// 初始位置
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btn_back->move(20, this->height() - btn_back->height() - 1);
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btn_back->raise();
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connect(btn_back, &QPushButton::clicked, this, &ai::backToChoose);
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// 设置车牌路径输入框
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le_path = new QLineEdit;
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le_path->setPlaceholderText("车牌图片路径：");
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le_path->setMinimumHeight(30);
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le_path->setStyleSheet("QLineEdit {"
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"border: 1px solid rgba(170, 255, 255, 200); "
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"border-radius: 10px; "
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"padding: 5px 10px; "
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"font: 15pt \"微软雅黑\";"
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"}");
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// 设置识别结果输入框
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le_code = new QLineEdit;
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le_code->setPlaceholderText("识别结果：");
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le_code->setMinimumHeight(33);
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le_code->setStyleSheet("QLineEdit {"
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"border: 1px solid rgba(170, 255, 255, 200); "
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"border-radius: 10px; "
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"padding: 5px 10px; "
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"font: 18pt \"微软雅黑\";"
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"}");
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speeker = new QTextToSpeech;
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httpmanager = new QNetworkAccessManager;
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connect(httpmanager, SIGNAL(finished(QNetworkReply*)), this, SLOT(read_ack(QNetworkReply*)));
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// 2. 排版
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QHBoxLayout *hbox = new QHBoxLayout;
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hbox->addWidget(btn_load);
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hbox->addWidget(btn_decode);
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QVBoxLayout *mainbox = new QVBoxLayout;
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// 车牌图片
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mainbox->addWidget(lb_pix);
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mainbox->addWidget(le_path);
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mainbox->addWidget(le_code);
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mainbox->addLayout(hbox);
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setLayout(mainbox);
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// 5. 前后台挂接
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connect(btn_load, SIGNAL(clicked(bool)), this, SLOT(load_pix()));
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connect(btn_decode, SIGNAL(clicked(bool)), this, SLOT(decode_pix()));
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mes = new message;
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connect(this, SIGNAL(mySignals(QString)), mes, SLOT(mySlot(QString)));
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connect(this, SIGNAL(Signal_out(QString)), mes, SLOT(Slot_out(QString)));
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}
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void ai::load_pix()
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{
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QString filename = QFileDialog::getOpenFileName(this, "打开车牌照片", ".", "Images (*.png *.bmp *.jpg)");
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if (filename.isEmpty()) {
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return; // 如果没有选择文件，直接返回
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}
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QPixmap pixmap(filename);
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if (!pixmap.isNull()) {
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// 调整图片大小，以适应QLabel的大小
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pixmap = pixmap.scaled(lb_pix->size(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
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lb_pix->setPixmap(pixmap);
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} else {
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qDebug() << "无法加载图片";
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}
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le_path->setText(filename);
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}
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void ai::decode_pix()
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{
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// 向百度发送一个二维码识别请求（HTTP）
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QNetworkRequest myrequset;
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// 填充请求url
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myrequset.setUrl(QUrl("https://aip.baidubce.com/rest/2.0/ocr/v1/license_plate?access_token=24.0e7a67f4d73ff0ff12103db37f2b053a.2592000.1758432109.282335-119834695"));
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// 填充header
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myrequset.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
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// 填充请求的body
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// 1. 挖出照片内容
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QFile file(le_path->text());
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file.open(QIODevice::ReadOnly);
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QByteArray buf = file.readAll();
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// 2. 转成base64及urlcode
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QByteArray buf64 = buf.toBase64().toPercentEncoding();
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QByteArray body = "image=" + buf64;
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// 发送完整的一次识别请求
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httpmanager->post(myrequset, body);
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}
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// 结果解析
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void ai::read_ack(QNetworkReply *r)
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{
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// 提取json格式的返回
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QByteArray buf = r->readAll();
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qDebug() << buf;
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// 提取json中的内容
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QJsonDocument myjson = QJsonDocument::fromJson(buf);
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QJsonObject node = myjson.object();
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QJsonObject arr = node.value("words_result").toObject();
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QString text = arr.value("number").toString();
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le_code->setText(text);
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speeker->say(text+"已识别");
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speeker->setVolume(1.0); // 设置最大音量
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speeker->setRate(-0.2); //放慢速度
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// 判断是否已经进入
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QSqlDatabase db = QSqlDatabase::database("text01"); // 使用相同的连接名 "text01"
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if (!db.isOpen() && !db.open()) {
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qDebug() << "数据库连接失败！";
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return;
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}
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QString number = QString("SELECT * FROM car_number WHERE number='%1'").arg(text);
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QSqlQuery query(db);
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if (query.exec(number) && query.next()) {
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emit Signal_out(text);
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} else {
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emit mySignals(text);
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}
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}
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void ai::backToChoose()
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{
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if (choosePage) { // choosePage 是通过构造函数传入的指针
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choosePage->show();
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this->hide();
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}
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}
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ai::~ai()
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{
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delete ui;
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delete mes;
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}
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