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2026-06-05 22:19:50 +05:00
commit b6337e6015
7 changed files with 1010 additions and 0 deletions
@@ -0,0 +1,345 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+#include "algo.h"
+
+#include <QMessageBox>
+#include <QSignalBlocker>
+
+#include <algorithm>
+
+bool CaseInsensitiveLess(const std::string& lhs, const std::string& rhs) {
+    return QString::compare(
+        QString::fromStdString(lhs),
+        QString::fromStdString(rhs),
+        Qt::CaseInsensitive
+    ) < 0;
+}
+
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+    , ui(new Ui::MainWindow)
+    , m_random_gen_(std::random_device{}()) {
+    ui->setupUi(this);
+
+    ApplyModel();
+}
+
+MainWindow::~MainWindow() {
+    delete ui;
+}
+
+void MainWindow::ApplyModel() {
+    const auto it_tmp = deque_model_.iterator;
+    const QSignalBlocker blocker(ui->list_widget);
+
+    ui->list_widget->clear();
+
+    for (size_t i = 0; i < deque_model_.items.size(); ++i) {
+        ui->list_widget->addItem(
+            QString::fromStdString(std::to_string(i) + ": " + deque_model_.items[i])
+        );
+    }
+
+    ui->list_widget->addItem("end");
+
+    deque_model_.iterator = it_tmp;
+
+    ui->txt_size->setText(QString::number(deque_model_.items.size()));
+
+    const bool is_empty = deque_model_.items.empty();
+    ui->btn_pop_back->setDisabled(is_empty);
+    ui->btn_pop_front->setDisabled(is_empty);
+    ui->btn_erase->setDisabled(is_empty);
+
+    ApplyIterator();
+}
+
+void MainWindow::ApplyIterator() {
+    const QSignalBlocker blocker(ui->list_widget);
+
+    if (deque_model_.items.empty()) {
+        ui->list_widget->setCurrentRow(0);
+        ui->txt_elem_content->clear();
+        ui->btn_edit->setDisabled(true);
+        ui->btn_erase->setDisabled(true);
+        ui->btn_inc_iterator->setDisabled(true);
+        ui->btn_dec_iterator->setDisabled(true);
+        return;
+    }
+
+    const auto distance = std::distance(deque_model_.items.begin(), deque_model_.iterator);
+    const bool is_end = deque_model_.iterator == deque_model_.items.end();
+    const bool is_begin = deque_model_.iterator == deque_model_.items.begin();
+
+    ui->list_widget->setCurrentRow(static_cast<int>(distance));
+    ui->btn_edit->setDisabled(is_end);
+    ui->btn_erase->setDisabled(is_end);
+    ui->btn_inc_iterator->setDisabled(is_end);
+    ui->btn_dec_iterator->setDisabled(is_begin);
+
+    if (is_end) {
+        ui->txt_elem_content->clear();
+    } else {
+        ui->txt_elem_content->setText(QString::fromStdString(*deque_model_.iterator));
+    }
+}
+
+void MainWindow::SetRandomGen(const std::mt19937& random_gen) {
+    m_random_gen_ = random_gen;
+}
+
+void MainWindow::on_btn_clear_clicked() {
+    deque_model_.items.clear();
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_push_front_clicked() {
+    deque_model_.items.push_front(ui->txt_elem_content->text().toStdString());
+
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_push_back_clicked() {
+    deque_model_.items.push_back(ui->txt_elem_content->text().toStdString());
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_pop_back_clicked() {
+    if (deque_model_.items.empty()) {
+        return;
+    }
+
+    deque_model_.items.pop_back();
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_pop_front_clicked() {
+    if (deque_model_.items.empty()) {
+        return;
+    }
+
+    deque_model_.items.pop_front();
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_insert_clicked() {
+    deque_model_.items.insert(
+        deque_model_.iterator,
+        ui->txt_elem_content->text().toStdString()
+    );
+
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_erase_clicked() {
+    if (deque_model_.iterator == deque_model_.items.end()) {
+        return;
+    }
+
+    deque_model_.items.erase(deque_model_.iterator);
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_begin_clicked() {
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyIterator();
+}
+
+void MainWindow::on_btn_end_clicked() {
+    deque_model_.iterator = deque_model_.items.end();
+    ApplyIterator();
+}
+
+void MainWindow::on_btn_dec_iterator_clicked() {
+    if (deque_model_.iterator != deque_model_.items.begin()) {
+        --deque_model_.iterator;
+    }
+
+    ApplyIterator();
+}
+
+void MainWindow::on_btn_inc_iterator_clicked() {
+    if (deque_model_.iterator != deque_model_.items.end()) {
+        ++deque_model_.iterator;
+    }
+
+    ApplyIterator();
+}
+
+void MainWindow::on_list_widget_currentRowChanged(int currentRow) {
+    currentRow = std::clamp(currentRow, 0, static_cast<int>(deque_model_.items.size()));
+    deque_model_.iterator = deque_model_.items.begin() + currentRow;
+    ApplyIterator();
+}
+
+void MainWindow::on_btn_tea_clicked() {
+    static std::deque<std::string> tea {
+        "Чай Лунцзин",
+        "Эрл Грей",
+        "Сенча",
+        "Пуэр",
+        "Дарджилинг",
+        "Ассам",
+        "Матча",
+        "Ганпаудер",
+        "Оолонг",
+        "Лапсанг Сушонг"
+    };
+
+    deque_model_.items = tea;
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_cakes_clicked() {
+    static std::deque<std::string> cakes {
+        "Красный бархат",
+        "Наполеон",
+        "Медовик",
+        "Тирамису",
+        "Прага",
+        "Чизкейк",
+        "Захер",
+        "Эстерхази",
+        "Морковный торт",
+        "Чёрный лес",
+    };
+    deque_model_.items = cakes;
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_edit_clicked() {
+    if (deque_model_.iterator == deque_model_.items.end()) {
+        return;
+    }
+
+    *deque_model_.iterator = ui->txt_elem_content->text().toStdString();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_resize_clicked() {
+    bool ok = false;
+    const int size = ui->txt_size->text().toInt(&ok);
+
+    if (!ok || size < 0 || size > 1000) {
+        QMessageBox::warning(this, "Error", "Incorrect size");
+        return;
+    }
+
+    deque_model_.items.resize(static_cast<size_t>(size));
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_find_clicked() {
+    deque_model_.iterator = std::find(
+        deque_model_.items.begin(),
+        deque_model_.items.end(),
+        ui->txt_elem_content->text().toStdString()
+    );
+
+    ApplyIterator();
+}
+
+void MainWindow::on_btn_count_clicked() {
+    const int count = static_cast<int>(std::count(
+        deque_model_.items.begin(),
+        deque_model_.items.end(),
+        ui->le_count->text().toStdString()
+    ));
+
+    ui->lbl_count->setText(QString::number(count));
+}
+
+void MainWindow::on_btn_min_element_clicked() {
+    deque_model_.iterator = std::min_element(
+        deque_model_.items.begin(),
+        deque_model_.items.end()
+    );
+
+    ApplyIterator();
+}
+
+void MainWindow::on_btn_max_element_clicked() {
+    deque_model_.iterator = std::max_element(
+        deque_model_.items.begin(),
+        deque_model_.items.end()
+    );
+
+    ApplyIterator();
+}
+
+void MainWindow::on_btn_sort_clicked() {
+    deque_model_.items = MergeSort(
+        deque_model_.items,
+        [](const std::string& lhs, const std::string& rhs) {
+            return lhs < rhs;
+        }
+    );
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_sOrT_clicked() {
+    deque_model_.items = MergeSort(deque_model_.items, CaseInsensitiveLess);
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_shuffle_clicked() {
+    std::shuffle(deque_model_.items.begin(), deque_model_.items.end(), m_random_gen_);
+    ApplyModel();
+}
+
+void MainWindow::on_btn_unique_clicked() {
+    if (!std::is_sorted(deque_model_.items.begin(), deque_model_.items.end())) {
+        ApplyIterator();
+        return;
+    }
+
+    const auto new_end = std::unique(deque_model_.items.begin(), deque_model_.items.end());
+    deque_model_.items.erase(new_end, deque_model_.items.end());
+    deque_model_.iterator = deque_model_.items.begin();
+    ApplyModel();
+}
+
+void MainWindow::on_btn_reverse_clicked() {
+    std::reverse(deque_model_.items.begin(), deque_model_.items.end());
+    ApplyModel();
+}
+
+void MainWindow::on_btn_lower_bound_clicked() { if (!std::is_sorted(deque_model_.items.begin(), deque_model_.items.end())) {
+        return;
+    }
+
+    deque_model_.iterator = std::lower_bound(
+        deque_model_.items.begin(),
+        deque_model_.items.end(),
+        ui->txt_elem_content->text().toStdString()
+    );
+
+    ApplyIterator();
+}
+
+void MainWindow::on_btn_upper_bound_clicked() {
+    if (!std::is_sorted(deque_model_.items.begin(), deque_model_.items.end())) {
+        return;
+    }
+
+    deque_model_.iterator = std::upper_bound(
+        deque_model_.items.begin(),
+        deque_model_.items.end(),
+        ui->txt_elem_content->text().toStdString()
+    );
+
+    ApplyIterator();
+}