QT-CART

QT-Main/pagecart.cpp

@@ -0,0 +1,408 @@
+#include "pagecart.h"
+#include "ui_pagecart.h"
+
+#include <QGraphicsDropShadowEffect>
+#include <QPushButton>
+#include <QTableWidgetItem>
+#include <QDebug>
+#include <QMessageBox>
+#include <QKeyEvent>
+#include <QApplication>
+#include <QHeaderView>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QPixmap>
+#include <cmath>
+
+static QString moneyKR(qint64 v)
+{
+    const QLocale loc(QLocale::Korean, QLocale::SouthKorea);
+    return loc.toString(v) + "원";
+}
+
+static QString imageForName(const QString& name)
+{
+    if(name=="홈런볼 초코맛") return ":/cart_snack(1).jpg";
+    if(name=="허니버터칩") return ":/cart_snack(2).png";
+    if(name=="오레오 초콜릿크림") return ":/cart_snack(3).jpg";
+    if(name=="빼빼로 아몬드") return ":/cart_snack(4).jpg";
+    if(name=="빈츠") return ":/cart_snack(5).jpg";
+    if(name=="예감 치즈그르탕") return ":/cart_snack(6).jpg";
+    if(name=="오!감자 감자그라탕") return ":/cart_snack(7).jpg";
+    if(name=="포카칩 오리지널") return ":/cart_snack(8).jpg";
+    if(name=="아이폰 15 프로") return ":/cart_iphone.jpg";
+    if(name=="핸드크림") return ":/cart_handcream.jpg";
+    if(name=="크리스마스 퍼즐") return ":/cart_puzzle.png";
+    return ""; 
+}
+
+PageCart::PageCart(QWidget *parent)
+    : QWidget(parent),
+    ui(new Ui::PageCart)
+{
+    ui->setupUi(this);
+
+    // 그림자 효과
+    auto makeShadow = [](QObject *parent){
+        auto *s = new QGraphicsDropShadowEffect(parent);
+        s->setBlurRadius(18);
+        s->setOffset(0, 4);
+        s->setColor(QColor(0, 0, 0, 60));
+        return s;
+    };
+    ui->tableCart->setStyleSheet(
+        "QTableWidget::item { padding: 0px; margin: 0px; }"
+        "QTableWidget { border: none; }"
+        );
+
+    if (ui->widget_2) ui->widget_2->setGraphicsEffect(makeShadow(ui->widget_2));
+    if (ui->widget)   ui->widget->setGraphicsEffect(makeShadow(ui->widget));
+
+    ui->tableCart->setSelectionMode(QAbstractItemView::NoSelection);
+    ui->tableCart->setEditTriggers(QAbstractItemView::NoEditTriggers);
+    ui->tableCart->setShowGrid(false);
+
+    // 바코드 입력용 숨김 QLineEdit
+    m_editBarcode = new QLineEdit(this);
+    m_editBarcode->setVisible(false);
+    m_editBarcode->setFocusPolicy(Qt::StrongFocus);
+    m_editBarcode->setFocus();
+    connect(m_editBarcode, SIGNAL(returnPressed()), this, SLOT(onBarcodeEntered()));
+
+    qApp->installEventFilter(this);
+
+    m_scanner = new BarcodeScanner(this);
+    connect(m_scanner, &BarcodeScanner::itemFetched, this, &PageCart::handleItemFetched);
+    connect(m_scanner, &BarcodeScanner::fetchFailed, this, &PageCart::handleFetchFailed);
+
+    // 테이블 컬럼 설정
+    ui->tableCart->setColumnCount(7);
+    ui->tableCart->horizontalHeader()->setVisible(false);
+    ui->tableCart->verticalHeader()->setVisible(false);
+    ui->tableCart->horizontalHeader()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
+    ui->tableCart->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Stretch);
+
+    ui->tableCart->setColumnWidth(0, 54);
+    ui->tableCart->setColumnWidth(2, 52);
+    ui->tableCart->setColumnWidth(3, 42);
+    ui->tableCart->setColumnWidth(5, 76);
+    ui->tableCart->setColumnWidth(6, 46);
+    
+    updateTotal();
+
+    if (ui->btnHome) {
+        connect(ui->btnHome, &QPushButton::clicked, this, [this](){
+            emit goWelcome();
+        });
+    }
+}
+
+PageCart::~PageCart()
+{
+    delete ui;
+}
+
+// MainWidget으로부터 API 설정 주입
+void PageCart::setApiConfig(const QString &ip, int port)
+{
+    if (m_scanner) {
+        m_scanner->setApiBaseUrl(ip, port);
+    }
+    resetCart();
+}
+
+// 카트 행 추가 
+void PageCart::addRowForItem(const QString& id, const QString& name, int unitPrice, int qty, double weight)
+{
+    int row = ui->tableCart->rowCount();
+    ui->tableCart->insertRow(row);
+    ui->tableCart->setRowHeight(row, 60);
+
+    m_unitPrice.append(unitPrice);
+
+    ItemInfo info;
+    info.id = id; 
+    info.name = name;
+    info.price = unitPrice;
+    info.weight = weight;
+    m_items.append(info);
+
+    auto makeCenterCell = [&](QWidget *child) -> QWidget* {
+        QWidget *w = new QWidget(ui->tableCart);
+        auto *lay = new QHBoxLayout(w);
+        lay->setContentsMargins(0, 0, 0, 0);
+        lay->setSpacing(0);
+        lay->setAlignment(Qt::AlignCenter);
+        lay->addWidget(child);
+        return w;
+    };
+    auto makeRightCell = [&](QWidget *child) -> QWidget* {
+        QWidget *w = new QWidget(ui->tableCart);
+        auto *lay = new QHBoxLayout(w);
+        lay->setContentsMargins(0, 0, 0, 0);
+        lay->setSpacing(0);
+        lay->addStretch();
+        lay->addWidget(child);
+        return w;
+    };
+
+    // 이미지
+    QLabel *img = new QLabel(ui->tableCart);
+    img->setFixedSize(44, 44);
+    img->setAlignment(Qt::AlignCenter);
+    QPixmap px(imageForName(name));
+    if (!px.isNull()) {
+        img->setPixmap(px.scaled(44, 44, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation));
+    }
+    ui->tableCart->setCellWidget(row, 0, makeCenterCell(img));
+    ui->tableCart->setItem(row, 1, new QTableWidgetItem(name));
+
+    QPushButton *btnPlus = new QPushButton("+", ui->tableCart);
+    btnPlus->setFixedSize(26, 30);
+    btnPlus->setStyleSheet("QPushButton { background-color: rgb(37,99,235); color: white; border-radius: 10px; font-weight: bold; }");
+    ui->tableCart->setCellWidget(row, 2, makeCenterCell(btnPlus));
+    connect(btnPlus, &QPushButton::clicked, this, &PageCart::onPlusClicked);
+
+    QTableWidgetItem *qtyItem = new QTableWidgetItem(QString::number(qty));
+    qtyItem->setTextAlignment(Qt::AlignCenter);
+    ui->tableCart->setItem(row, 3, qtyItem);
+
+    QPushButton *btnMinus = new QPushButton("-", ui->tableCart);
+    btnMinus->setFixedSize(30, 30);
+    btnMinus->setStyleSheet("QPushButton { background-color: rgb(154,153,150); color: white; border-radius: 10px; font-weight: bold; }");
+    ui->tableCart->setCellWidget(row, 4, makeCenterCell(btnMinus));
+    connect(btnMinus, &QPushButton::clicked, this, &PageCart::onMinusClicked);
+
+    QTableWidgetItem *priceItem = new QTableWidgetItem(moneyKR(0));
+    priceItem->setTextAlignment(Qt::AlignRight | Qt::AlignVCenter);
+    ui->tableCart->setItem(row, 5, priceItem);
+
+    // 삭제 버튼
+    QPushButton *btnDelete = new QPushButton("X", ui->tableCart);
+    btnDelete->setFixedSize(30, 30);
+    btnDelete->setStyleSheet("QPushButton { background-color: rgb(224,27,36); color: white; border-radius: 10px; font-weight: bold; }");
+    ui->tableCart->setCellWidget(row, 6, makeRightCell(btnDelete));
+    connect(btnDelete, &QPushButton::clicked, this, &PageCart::onDeleteClicked);
+
+    updateRowAmount(row);
+}
+
+void PageCart::onPlusClicked()
+{
+    QPushButton *btn = qobject_cast<QPushButton*>(sender());
+    if (!btn) return;
+
+    int row = getRowFromButton(btn);
+    if (row < 0 || row >= m_items.size()) return;
+
+    QString itemId = m_items[row].id;
+    m_scanner->fetchItemDetails(itemId);
+}
+
+void PageCart::onMinusClicked()
+{
+    QPushButton *btn = qobject_cast<QPushButton*>(sender());
+    if (!btn) return;
+
+    int row = getRowFromButton(btn);
+    if (row < 0 || row >= m_items.size()) return;
+
+    QString itemId = m_items[row].id;
+    m_scanner->removeItem(itemId);
+
+    int currentQty = ui->tableCart->item(row, 3)->text().toInt();
+    int newQty = currentQty - 1;
+
+    if (newQty <= 0) {
+        m_unitPrice.removeAt(row);
+        m_items.removeAt(row);
+        ui->tableCart->removeRow(row);
+    } else {
+        ui->tableCart->item(row, 3)->setText(QString::number(newQty));
+        updateRowAmount(row);
+    }
+    updateTotal();
+}
+
+void PageCart::onDeleteClicked()
+{
+    QPushButton *btn = qobject_cast<QPushButton*>(sender());
+    if (!btn) return;
+
+    int row = getRowFromButton(btn);
+    if (row < 0 || row >= m_items.size()) return;
+
+    QString itemId = m_items[row].id;
+    int qty = ui->tableCart->item(row, 3)->text().toInt();
+
+    for (int i = 0; i < qty; ++i) {
+        m_scanner->removeItem(itemId);
+    }
+
+    m_unitPrice.removeAt(row);
+    m_items.removeAt(row);
+    ui->tableCart->removeRow(row);
+    updateTotal();
+}
+
+void PageCart::updateRowAmount(int row)
+{
+    if (row < 0 || row >= m_unitPrice.size()) return;
+    int qty = ui->tableCart->item(row, 3)->text().toInt();
+    int amount = m_unitPrice[row] * qty;
+    ui->tableCart->item(row, 5)->setText(moneyKR(amount));
+}
+
+void PageCart::updateTotal()
+{
+    int totalCount = 0;
+    int totalPrice = 0;
+
+    for (int r = 0; r < ui->tableCart->rowCount(); ++r) {
+        auto *qtyItem = ui->tableCart->item(r, 3);
+        if (!qtyItem) continue;
+        int qty = qtyItem->text().toInt();
+        totalCount += qty;
+        int unit = (r < m_unitPrice.size()) ? m_unitPrice[r] : 0;
+        totalPrice += unit * qty;
+    }
+
+    if (ui->lblTotalPrice_2)
+        ui->lblTotalPrice_2->setText(moneyKR(totalPrice));
+    if (ui->lblCartTitle)
+        ui->lblCartTitle->setText(QString("Cart (%1 products)").arg(totalCount));
+}
+
+void PageCart::onBarcodeEntered()
+{
+    QString code = m_editBarcode->text().trimmed();
+    m_editBarcode->clear();
+    if (code.isEmpty()) return;
+    m_scanner->fetchItemDetails(code);
+}
+
+bool PageCart::eventFilter(QObject *obj, QEvent *event)
+{
+    Q_UNUSED(obj);
+    if (event->type() == QEvent::KeyPress) {
+        QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
+        if (keyEvent->key() == Qt::Key_Return || keyEvent->key() == Qt::Key_Enter) {
+            if (!m_barcodeData.isEmpty()) {
+                m_scanner->fetchItemDetails(m_barcodeData);
+                m_barcodeData.clear();
+            }
+            return true;
+        }
+        else if (!keyEvent->text().isEmpty() &&
+                 !(keyEvent->modifiers() & (Qt::ShiftModifier | Qt::ControlModifier | Qt::AltModifier))) {
+            m_barcodeData.append(keyEvent->text());
+            return true;
+        }
+    }
+    return QWidget::eventFilter(obj, event);
+}
+
+void PageCart::handleItemFetched(const Item &item)
+{
+    QString strId = item.id;
+
+    int rowFound = -1;
+    for (int r = 0; r < ui->tableCart->rowCount(); ++r) {
+        if (m_items[r].id == strId || m_items[r].name == item.name) {
+            rowFound = r;
+            break;
+        }
+    }
+
+    if (rowFound == -1) {
+        int unit = static_cast<int>(std::lround(item.price));
+        addRowForItem(strId, item.name, unit, 1, item.weight);
+    } else {
+        int qty = ui->tableCart->item(rowFound, 3)->text().toInt();
+        ui->tableCart->item(rowFound, 3)->setText(QString::number(qty + 1));
+        
+        m_items[rowFound].id = strId;
+        m_items[rowFound].weight = item.weight;
+        
+        updateRowAmount(rowFound);
+    }
+    updateTotal();
+}
+
+void PageCart::handleFetchFailed(const QString &err)
+{
+    qDebug() << "Barcode fetch failed:" << err;
+    QMessageBox::warning(this, "스캔 실패", "상품 정보를 불러오지 못했습니다.\n" + err);
+}
+
+void PageCart::on_btnGuide_clicked() { emit guideModeClicked(); }
+
+void PageCart::on_pushButton_clicked() { resetCart(); }
+
+QVector<PageCart::CartLine> PageCart::getCartLines() const
+{
+    QVector<CartLine> out;
+    for (int r = 0; r < ui->tableCart->rowCount(); ++r) {
+        auto *nameItem = ui->tableCart->item(r, 1);
+        auto *qtyItem  = ui->tableCart->item(r, 3);
+        if (!nameItem || !qtyItem) continue;
+        int qty = qtyItem->text().toInt();
+        if (qty <= 0) continue;
+        int unitPrice = (r < m_unitPrice.size()) ? m_unitPrice[r] : 0;
+        out.push_back({ nameItem->text(), qty, unitPrice });
+    }
+    return out;
+}
+
+void PageCart::resetCart()
+{
+    ui->tableCart->setRowCount(0);
+    m_unitPrice.clear();
+    m_items.clear();
+    updateTotal();
+}
+
+int PageCart::getRowFromButton(QWidget *btn)
+{
+    if (!btn) return -1;
+    int rowCount = ui->tableCart->rowCount();
+    for (int r = 0; r < rowCount; ++r) {
+        int targetCols[] = {2, 4, 6};
+        for (int c : targetCols) {
+            QWidget *cellWidget = ui->tableCart->cellWidget(r, c);
+            if (cellWidget && (cellWidget == btn || cellWidget->isAncestorOf(btn))) {
+                return r;
+            }
+        }
+    }
+    return -1;
+}
+
+double PageCart::getTotalWeight() const
+{
+    double totalWeight = 0.0;
+    // m_items와 테이블의 행은 동기화되어 있다고 가정
+    for(int i = 0; i < m_items.size(); ++i) {
+        if (i >= ui->tableCart->rowCount()) break;
+
+        QTableWidgetItem *itemQty = ui->tableCart->item(i, 3);
+        if (itemQty) {
+            int qty = itemQty->text().toInt();
+            totalWeight += (m_items[i].weight * qty);
+        }
+    }
+    return totalWeight;
+}
+
+void PageCart::on_btnCheckout_clicked()
+{
+    if (ui->tableCart->rowCount() == 0) {
+        QMessageBox::information(this, "알림", "장바구니가 비어있습니다.");
+        return;
+    }
+    
+    // [수정] 예상 무게를 계산하여 MainWidget으로 전달
+    double expected = getTotalWeight();
+    qDebug() << "Request Checkout - Expected Weight:" << expected;
+    emit requestCheckout(expected); 
+}