Refactor UI and database logic for device management

Replaced `MyWindow` with `MainWindow` featuring dynamic device widgets. Introduced `DeviceInfo`, `DeviceDAO`, and improved database interaction. Added flow layout and refactored image handling for better performance.

CMakeLists.txt

@@ -41,11 +41,17 @@ file(GLOB_RECURSE SERVICES_SOURCES
         "${CMAKE_CURRENT_SOURCE_DIR}/services/*.h"
 )
 
+file(GLOB_RECURSE MODELS_SOURCES
+        "${CMAKE_CURRENT_SOURCE_DIR}/models/*.cpp"
+        "${CMAKE_CURRENT_SOURCE_DIR}/models/*.h"
+)
+
 add_executable(ARCDesktopProject
         main.cpp
         ${VIEW_SOURCES}
         ${SERVICES_SOURCES}
         ${DB_SOURCES}
+        ${MODELS_SOURCES}
 )
 
 if (WIN32)
@@ -65,4 +71,11 @@ elseif (APPLE)
             Qt6::Sql
             tesseract
     )
-endif ()
+endif ()
+
+target_include_directories(ARCDesktopProject PRIVATE
+        ${CMAKE_CURRENT_SOURCE_DIR}/views
+        ${CMAKE_CURRENT_SOURCE_DIR}/database
+        ${CMAKE_CURRENT_SOURCE_DIR}/services
+        ${CMAKE_CURRENT_SOURCE_DIR}/models
+)

database/DatabaseManager.cpp

@@ -1,4 +1,4 @@
-#include "database_manager.h"
+#include "DatabaseManager.h"
 #include <QSqlError>
 #include <QtCore/qcoreapplication.h>
 

database/dao/CommonDataDAO.cpp

@@ -1,5 +1,5 @@
-#include "common_data_dao.h"
-#include "../database_manager.h"
+#include "CommonDataDAO.h"
+#include "DatabaseManager.h"
 
 #include <QSqlQuery>
 #include <QSqlError>

database/dao/DeviceDAO.cpp

@@ -0,0 +1,139 @@
+#include <QSqlQuery>
+#include <QSqlError>
+#include "DeviceDAO.h"
+#include "DatabaseManager.h"
+#include "DeviceInfo.h"
+
+QList<DeviceInfo> DeviceDAO::getAllDevices() {
+    QList<DeviceInfo> devices;
+
+    QSqlQuery query(DatabaseManager::instance().database());
+    query.prepare(
+        "SELECT id, status, name, android, screen_width, screen_height, battery, updateTime, image FROM devices WHERE image IS NOT NULL AND status = 'device'");
+
+    if (!query.exec()) {
+        qWarning() << "Ошибка при получении списка устройств:" << query.lastError().text();
+        return devices;
+    }
+
+    while (query.next()) {
+        DeviceInfo device;
+        device.id = query.value("id").toString();
+        device.status = query.value("status").toString();
+        device.name = query.value("name").toString();
+        device.android = query.value("android").toString();
+        device.screenWidth = query.value("screen_width").toInt();
+        device.screenHeight = query.value("screen_height").toInt();
+        device.battery = query.value("battery").toInt();
+        device.updateTime = QDateTime::fromString(query.value("updateTime").toString(), Qt::ISODate);
+        device.image = query.value("image").toByteArray();
+
+        devices.append(device);
+    }
+
+    return devices;
+}
+
+bool DeviceDAO::upsertDevice(const DeviceInfo &device) {
+    QSqlQuery query(DatabaseManager::instance().database());
+
+    // Проверка: существует ли запись
+    query.prepare("SELECT COUNT(*) FROM devices WHERE id = :id");
+    query.bindValue(":id", device.id);
+
+    if (!query.exec() || !query.next()) {
+        qWarning() << "Ошибка при проверке существования записи:" << query.lastError().text();
+        return false;
+    }
+
+    bool exists = query.value(0).toInt() > 0;
+
+    if (exists) {
+        // Обновление
+        query.prepare(R"(
+            UPDATE devices SET
+                status = :status,
+                name = :name,
+                android = :android,
+                screen_width = :width,
+                screen_height = :height,
+                battery = :battery,
+                updateTime = :updateTime
+            WHERE id = :id
+        )");
+    } else {
+        // Вставка
+        query.prepare(R"(
+            INSERT INTO devices (
+                id, status, name, android, screen_width, screen_height, battery, updateTime
+            ) VALUES (
+                :id, :status, :name, :android, :width, :height, :battery, :updateTime
+            )
+        )");
+    }
+
+    query.bindValue(":id", device.id);
+    query.bindValue(":status", device.status);
+    query.bindValue(":name", device.name);
+    query.bindValue(":android", device.android);
+    query.bindValue(":width", device.screenWidth);
+    query.bindValue(":height", device.screenHeight);
+    query.bindValue(":battery", device.battery);
+    query.bindValue(":updateTime", device.updateTime.toString(Qt::ISODate));
+
+    if (!query.exec()) {
+        qWarning() << "Ошибка при вставке/обновлении устройства:" << query.lastError().text();
+        return false;
+    }
+
+    return true;
+}
+
+bool DeviceDAO::markDevicesOfflineExcept(const QStringList &onlineDeviceIds) {
+    QSqlQuery query(DatabaseManager::instance().database());
+
+    // Если список ID пуст, помечаем все как offline
+    if (onlineDeviceIds.isEmpty()) {
+        if (!query.exec("UPDATE devices SET status = 'offline'")) {
+            qWarning() << "Ошибка при обновлении устройств на offline:" << query.lastError().text();
+            return false;
+        }
+        return true;
+    }
+
+    // Генерируем плейсхолдеры :id0, :id1, ...
+    QStringList placeholders;
+    for (int i = 0; i < onlineDeviceIds.size(); ++i) {
+        placeholders << QString(":id%1").arg(i);
+    }
+
+    const QString queryString = QString(
+        "UPDATE devices SET status = 'offline' WHERE id NOT IN (%1)"
+    ).arg(placeholders.join(", "));
+
+    query.prepare(queryString);
+    // Привязываем значения к плейсхолдерам
+    for (int i = 0; i < onlineDeviceIds.size(); ++i) {
+        query.bindValue(QString(":id%1").arg(i), onlineDeviceIds[i]);
+    }
+
+    if (!query.exec()) {
+        qWarning() << "Ошибка при обновлении устройств на offline (исключая online):" << query.lastError().text();
+        return false;
+    }
+    return true;
+}
+
+bool DeviceDAO::updateImage(const QString &deviceId, const QByteArray &imageData) {
+    QSqlQuery query(DatabaseManager::instance().database());
+    query.prepare("UPDATE devices SET image = :image WHERE id = :id");
+    query.bindValue(":image", imageData);
+    query.bindValue(":id", deviceId);
+
+    if (!query.exec()) {
+        qWarning() << "Ошибка при обновлении изображения:" << query.lastError().text();
+        return false;
+    }
+
+    return true;
+}

database/dao/DeviceDAO.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <DeviceInfo.h>
+
+class DeviceDAO {
+public:
+    [[nodiscard]] static bool upsertDevice(const DeviceInfo &device);
+
+    [[nodiscard]] static bool markDevicesOfflineExcept(const QStringList &onlineDeviceIds);
+
+    [[nodiscard]] static bool updateImage(const QString &deviceId, const QByteArray &imageData);
+
+    [[nodiscard]] static QList<DeviceInfo> getAllDevices();
+};

database/dao/device_dao.cpp

@@ -1,75 +0,0 @@
-#include "device_dao.h"
-#include <QSqlQuery>
-#include <QSqlError>
-#include <QVariant>
-#include <QDebug>
-#include "../database_manager.h"
-
-bool DeviceDAO::upsertDevice(const DeviceInfo& device) {
-    QSqlQuery query(DatabaseManager::instance().database());
-
-    // Проверка: существует ли запись
-    query.prepare("SELECT COUNT(*) FROM devices WHERE id = :id");
-    query.bindValue(":id", device.id);
-
-    if (!query.exec() || !query.next()) {
-        qWarning() << "Ошибка при проверке существования записи:" << query.lastError().text();
-        return false;
-    }
-
-    bool exists = query.value(0).toInt() > 0;
-
-    if (exists) {
-        // Обновление
-        query.prepare(R"(
-            UPDATE devices SET
-                status = :status,
-                name = :name,
-                android = :android,
-                screen_width = :width,
-                screen_height = :height,
-                battery = :battery,
-                updateTime = :updateTime
-            WHERE id = :id
-        )");
-    } else {
-        // Вставка
-        query.prepare(R"(
-            INSERT INTO devices (
-                id, status, name, android, screen_width, screen_height, battery, updateTime
-            ) VALUES (
-                :id, :status, :name, :android, :width, :height, :battery, :updateTime
-            )
-        )");
-    }
-
-    query.bindValue(":id", device.id);
-    query.bindValue(":status", device.status);
-    query.bindValue(":name", device.name);
-    query.bindValue(":android", device.android);
-    query.bindValue(":width", device.screenWidth);
-    query.bindValue(":height", device.screenHeight);
-    query.bindValue(":battery", device.battery);
-    query.bindValue(":updateTime", device.updateTime.toString(Qt::ISODate));
-
-    if (!query.exec()) {
-        qWarning() << "Ошибка при вставке/обновлении устройства:" << query.lastError().text();
-        return false;
-    }
-
-    return true;
-}
-
-bool DeviceDAO::updateImage(const QString& deviceId, const QByteArray& imageData) {
-    QSqlQuery query(DatabaseManager::instance().database());
-    query.prepare("UPDATE devices SET image = :image WHERE id = :id");
-    query.bindValue(":image", imageData);
-    query.bindValue(":id", deviceId);
-
-    if (!query.exec()) {
-        qWarning() << "Ошибка при обновлении изображения:" << query.lastError().text();
-        return false;
-    }
-
-    return true;
-}

database/dao/device_dao.h

@@ -1,22 +0,0 @@
-#pragma once
-
-#include <QDateTime>
-#include <QSqlDatabase>
-
-struct DeviceInfo {
-    QString id;
-    QString status;
-    QString name;
-    QString android;
-    int screenWidth;
-    int screenHeight;
-    int battery;
-    QDateTime updateTime;
-};
-
-class DeviceDAO {
-public:
-    [[nodiscard]] static bool upsertDevice(const DeviceInfo &device);
-
-    [[nodiscard]] static bool updateImage(const QString &deviceId, const QByteArray &imageData);
-};

main.cpp

@@ -1,11 +1,10 @@
 #include <QApplication>
 #include <QThread>
-#include "views/MyWindow.h"
-#include <tesseract/baseapi.h>
+#include "views/MainWindow.h"
 
-#include "database/database_manager.h"
-#include "database/dao/common_data_dao.h"
-#include "services/device_screener.h"
+#include "database/DatabaseManager.h"
+#include "database/dao/CommonDataDAO.h"
+#include "services/DeviceScreener.h"
 
 void setupWorkerAndThread(QCoreApplication& app) {
     auto* thread = new QThread;
@@ -73,7 +72,7 @@ int main(int argc, char *argv[]) {
     // qDebug() << "Распознанный текст:" << result;
 
 
-    MyWindow window;
+    MainWindow window;
     window.show();
     return app.exec();
 }

models/DeviceInfo.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <QDateTime>
+
+struct DeviceInfo {
+    QString id;
+    QString status;
+    QString name;
+    QString android;
+    int screenWidth;
+    int screenHeight;
+    int battery;
+    QDateTime updateTime;
+    QByteArray image;
+};

services/DeviceScreener.cpp

@@ -1,10 +1,13 @@
-#include "device_screener.h"
+#include "DeviceScreener.h"
 
 #include <QRegularExpression>
 #include <QProcess>
 #include <QFile>
+#include <QBuffer>
 #include <QThread>
-#include <../../database/dao/device_dao.h>
+#include <QImage>
+#include <dao/DeviceDAO.h>
+#include <DeviceInfo.h>
 
 DeviceScreener::DeviceScreener(QObject *parent) : QObject(parent) {
 }
@@ -15,26 +18,47 @@ void DeviceScreener::start() {
     qDebug() << "Worker started in thread:" << QThread::currentThread();
     while (m_running) {
         QList<QPair<QString, QString>> devices = readAdbDevices();
+        QStringList onlineIds;
         for (const auto&[id, status] : devices) {
             qDebug() << "Id:" << id << ", Status:" << status;
 
             DeviceInfo device;
             device.id = id;
-            device.status = status;
-            device.updateTime = QDateTime::currentDateTime();
 
             if (status == "device") {
+                onlineIds << device.id;
                 device = readDeviceInfo(id);
                 takeScreenshot(id);
             }
-
+            device.status = status;
+            device.updateTime = QDateTime::currentDateTime();
             qDebug() << "Update device: " << DeviceDAO::upsertDevice(device);
         }
-        QThread::sleep(5);
+        qDebug() << "All devices offline: " << DeviceDAO::markDevicesOfflineExcept(onlineIds);
+        QThread::sleep(3);
     }
     emit finished();
 }
 
+QByteArray convertPngToJpeg(const QByteArray& pngData, const int quality = 90) {
+    QImage image;
+    if (!image.loadFromData(pngData, "PNG")) {
+        qWarning() << "Не удалось загрузить PNG из байт";
+        return {};
+    }
+
+    // if (!image.save("test.jpg", "JPG", quality)) {
+        // qWarning() << "Не удалось сохранить как JPG:" << "test.jpg";
+        // return {};
+    // }
+
+    QByteArray jpgData;
+    QBuffer buffer(&jpgData);
+    buffer.open(QIODevice::WriteOnly);
+    image.save(&buffer, "JPG", quality);
+    return jpgData;
+}
+
 bool DeviceScreener::takeScreenshot(const QString& deviceId) {
     QProcess process;
     QStringList arguments;
@@ -55,7 +79,7 @@ bool DeviceScreener::takeScreenshot(const QString& deviceId) {
     }
 
     // Обновляем изображение в БД
-    if (!DeviceDAO::updateImage(deviceId, imageData)) {
+    if (!DeviceDAO::updateImage(deviceId, convertPngToJpeg(imageData, 90))) {
         qWarning() << "Не удалось записать изображение в БД для" << deviceId;
         return false;
     }

services/DeviceScreener.h

@@ -1,6 +1,7 @@
 #pragma once
 #include <QObject>
-#include <../../database/dao/device_dao.h>
+#include <dao/DeviceDAO.h>
+#include <DeviceInfo.h>
 
 class DeviceScreener final : public QObject {
     Q_OBJECT

views/DeviceWidget.cpp

@@ -0,0 +1,37 @@
+#include "DeviceWidget.h"
+#include <QVBoxLayout>
+#include <QLabel>
+#include <QPixmap>
+#include <QImage>
+
+DeviceWidget::DeviceWidget(const DeviceInfo &device, QWidget *parent): QWidget(parent) {
+    auto *layout = new QVBoxLayout(this);
+
+    this->setStyleSheet("background-color: lightgray;padding: 10px;");
+
+    QImage img;
+    img.loadFromData(device.image, "JPG");
+
+    auto *imageLabel = new QLabel(this);
+    qDebug() << "imageLabel" << img.width() ;
+    imageLabel->setPixmap(QPixmap::fromImage(img).scaled(200, 350, Qt::KeepAspectRatio, Qt::SmoothTransformation));
+    imageLabel->setAlignment(Qt::AlignCenter);
+    layout->addWidget(imageLabel);
+
+    const QString result = QString("%1, Android %2, battery %3% [%4x%5]")
+            .arg(device.name).arg(device.android).arg(device.battery).
+            arg(device.screenWidth).arg(device.screenHeight);
+
+    auto *statusLabel = new QLabel(result, this);
+    statusLabel->setAlignment(Qt::AlignCenter);
+    statusLabel->setMaximumWidth(200);
+    statusLabel->setWordWrap(true);
+
+    const QString styleSheet = QString("color: %1; font-weight: bold;")
+            .arg(device.status == "online" ? "green" : "red");
+    statusLabel->setStyleSheet(styleSheet);
+
+    // layout->setContentsMargins(10, 10, 10, 10);
+    layout->setSpacing(0);
+    layout->addWidget(statusLabel);
+}

views/DeviceWidget.h

@@ -0,0 +1,10 @@
+#pragma once
+#include <QWidget>
+#include "DeviceInfo.h"
+
+class DeviceWidget final : public QWidget {
+    Q_OBJECT
+
+public:
+    explicit DeviceWidget(const DeviceInfo& device, QWidget* parent = nullptr);
+};

views/MainWindow.cpp

@@ -0,0 +1,63 @@
+#include "MainWindow.h"
+
+#include <QLabel>
+#include <QScrollArea>
+
+#include "DeviceInfo.h"
+#include "DeviceWidget.h"
+#include "dao/DeviceDAO.h"
+#include "widget/FlowLayout.h"
+
+MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
+    // QPushButton* btn = new QPushButton("Hello Qt6!", this);
+    // setCentralWidget(btn);
+
+    auto* scrollArea = new QScrollArea(this);
+    auto* contentWidget = new QWidget;
+    flowLayout = new FlowLayout(contentWidget);
+
+
+
+    contentWidget->setContentsMargins(0, 0, 0, 0);  // Убираем отступы у контейнера
+    flowLayout->setContentsMargins(0, 0, 0, 0);     // Убираем отступы у layout
+    flowLayout->setSpacing(0);
+
+
+    QVector<DeviceInfo> devices = DeviceDAO::getAllDevices();
+    for (const auto& device : devices) {
+        auto* deviceWidget = new DeviceWidget(device);  // Создаем виджет, используя первый элемент из списка devices
+        deviceWidget->setFixedWidth(220);
+        deviceWidget->setFixedHeight(400);
+
+        deviceWidget->setContentsMargins(0, 0, 0, 0);
+        flowLayout->addWidget(deviceWidget);
+    }
+
+    resize(800, 600);
+
+    contentWidget->setLayout(flowLayout);
+    scrollArea->setWidget(contentWidget);
+    scrollArea->setWidgetResizable(true);
+    setCentralWidget(scrollArea);
+
+    timer = new QTimer(this);
+    connect(timer, &QTimer::timeout, this, &MainWindow::loadDevices);
+    timer->start(1000); // каждые 1 сек
+}
+
+
+void MainWindow::loadDevices() const {
+    const auto devices = DeviceDAO::getAllDevices();
+
+    // Очистить старые виджеты
+    QLayoutItem* item;
+    while ((item = flowLayout->takeAt(0)) != nullptr) {
+        delete item->widget();  // Удаляем виджет
+        delete item;            // Удаляем сам элемент из layout
+    }
+
+    // Добавляем новые виджеты для каждого устройства
+    for (const auto& device : devices) {
+        flowLayout->addWidget(new DeviceWidget(device));
+    }
+}

views/MainWindow.h

@@ -0,0 +1,18 @@
+#pragma once
+#include <QMainWindow>
+#include <QVBoxLayout>
+#include <QTimer>
+#include "DeviceInfo.h"
+#include "widget/FlowLayout.h"
+
+class MainWindow final : public QMainWindow {
+    Q_OBJECT
+public:
+    explicit MainWindow(QWidget *parent = nullptr);
+    void loadDevices() const;
+
+private:
+    QWidget* central;
+    FlowLayout* flowLayout;
+    QTimer* timer;
+};

views/MyWindow.cpp

@@ -1,7 +0,0 @@
-#include "MyWindow.h"
-#include <QPushButton>
-
-MyWindow::MyWindow(QWidget *parent) : QMainWindow(parent) {
-    QPushButton* btn = new QPushButton("Hello Qt6!", this);
-    setCentralWidget(btn);
-}

views/MyWindow.h

@@ -1,8 +0,0 @@
-#pragma once
-#include <QMainWindow>
-
-class MyWindow : public QMainWindow {
-    Q_OBJECT
-public:
-    MyWindow(QWidget *parent = nullptr);
-};

views/widget/FlowLayout.cpp

@@ -0,0 +1,130 @@
+#include "FlowLayout.h"
+#include <QtWidgets/qwidget.h>
+
+FlowLayout::FlowLayout(QWidget *parent, int margin, int hSpacing, int vSpacing): QLayout(parent), m_hSpace(hSpacing),
+    m_vSpace(vSpacing) {
+    setContentsMargins(margin, margin, margin, margin);
+}
+
+FlowLayout::FlowLayout(const int margin, const int hSpacing, const int vSpacing) : m_hSpace(hSpacing),
+    m_vSpace(vSpacing) {
+    setContentsMargins(margin, margin, margin, margin);
+}
+
+FlowLayout::~FlowLayout() {
+    QLayoutItem *item;
+    while ((item = takeAt(0)))
+        delete item;
+}
+
+int FlowLayout::horizontalSpacing() const {
+    if (m_hSpace >= 0) {
+        return m_hSpace;
+    } else {
+        return smartSpacing(QStyle::PM_LayoutHorizontalSpacing);
+    }
+}
+
+int FlowLayout::verticalSpacing() const {
+    if (m_vSpace >= 0) {
+        return m_vSpace;
+    } else {
+        return smartSpacing(QStyle::PM_LayoutVerticalSpacing);
+    }
+}
+
+int FlowLayout::count() const {
+    return itemList.size();
+}
+
+QLayoutItem *FlowLayout::itemAt(int index) const {
+    return itemList.value(index);
+}
+
+QLayoutItem *FlowLayout::takeAt(int index) {
+    if (index >= 0 && index < itemList.size())
+        return itemList.takeAt(index);
+    return nullptr;
+}
+
+Qt::Orientations FlowLayout::expandingDirections() const {
+    return {};
+}
+
+bool FlowLayout::hasHeightForWidth() const {
+    return true;
+}
+
+int FlowLayout::heightForWidth(int width) const {
+    int height = doLayout(QRect(0, 0, width, 0), true);
+    return height;
+}
+
+void FlowLayout::setGeometry(const QRect &rect) {
+    QLayout::setGeometry(rect);
+    doLayout(rect, false);
+}
+
+QSize FlowLayout::sizeHint() const {
+    return minimumSize();
+}
+
+QSize FlowLayout::minimumSize() const {
+    QSize size;
+    for (const QLayoutItem *item: std::as_const(itemList))
+        size = size.expandedTo(item->minimumSize());
+
+    const QMargins margins = contentsMargins();
+    size += QSize(margins.left() + margins.right(), margins.top() + margins.bottom());
+    return size;
+}
+
+int FlowLayout::doLayout(const QRect &rect, bool testOnly) const {
+    int left, top, right, bottom;
+    getContentsMargins(&left, &top, &right, &bottom);
+    QRect effectiveRect = rect.adjusted(+left, +top, -right, -bottom);
+    int x = effectiveRect.x();
+    int y = effectiveRect.y();
+    int lineHeight = 0;
+    for (QLayoutItem *item: std::as_const(itemList)) {
+        const QWidget *wid = item->widget();
+        int spaceX = horizontalSpacing();
+        if (spaceX == -1)
+            spaceX = wid->style()->layoutSpacing(
+                QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Horizontal);
+        int spaceY = verticalSpacing();
+        if (spaceY == -1)
+            spaceY = wid->style()->layoutSpacing(
+                QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Vertical);
+        int nextX = x + item->sizeHint().width() + spaceX;
+        if (nextX - spaceX > effectiveRect.right() && lineHeight > 0) {
+            x = effectiveRect.x();
+            y = y + lineHeight + spaceY;
+            nextX = x + item->sizeHint().width() + spaceX;
+            lineHeight = 0;
+        }
+
+        if (!testOnly)
+            item->setGeometry(QRect(QPoint(x, y), item->sizeHint()));
+
+        x = nextX;
+        lineHeight = qMax(lineHeight, item->sizeHint().height());
+    }
+    return y + lineHeight - rect.y() + bottom;
+}
+
+void FlowLayout::addItem(QLayoutItem *item) {
+    itemList.append(item);
+}
+
+int FlowLayout::smartSpacing(QStyle::PixelMetric pm) const {
+    QObject *parent = this->parent();
+    if (!parent) {
+        return -1;
+    } else if (parent->isWidgetType()) {
+        QWidget *pw = static_cast<QWidget *>(parent);
+        return pw->style()->pixelMetric(pm, nullptr, pw);
+    } else {
+        return static_cast<QLayout *>(parent)->spacing();
+    }
+}

views/widget/FlowLayout.h

@@ -0,0 +1,45 @@
+#pragma once
+#include <QStyle>
+#include <QLayout>
+
+class FlowLayout : public QLayout {
+public:
+    explicit FlowLayout(QWidget *parent, int margin = -1, int hSpacing = -1, int vSpacing = -1);
+
+    explicit FlowLayout(int margin = -1, int hSpacing = -1, int vSpacing = -1);
+
+    ~FlowLayout();
+
+    void addItem(QLayoutItem *item) override;
+
+    int horizontalSpacing() const;
+
+    int verticalSpacing() const;
+
+    Qt::Orientations expandingDirections() const override;
+
+    bool hasHeightForWidth() const override;
+
+    int heightForWidth(int) const override;
+
+    int count() const override;
+
+    QLayoutItem *itemAt(int index) const override;
+
+    QSize minimumSize() const override;
+
+    void setGeometry(const QRect &rect) override;
+
+    QSize sizeHint() const override;
+
+    QLayoutItem *takeAt(int index) override;
+
+private:
+    int doLayout(const QRect &rect, bool testOnly) const;
+
+    int smartSpacing(QStyle::PixelMetric pm) const;
+
+    QList<QLayoutItem *> itemList;
+    int m_hSpace;
+    int m_vSpace;
+};