[2sem] pb21 done
This commit is contained in:
Andrei "Nuark" G
parent
33fa9edd0f
commit
33dc955c79
7 changed files with 488 additions and 0 deletions
13
2sem/programming basics/21/prac_qt/CMakeLists.txt
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13
2sem/programming basics/21/prac_qt/CMakeLists.txt
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cmake_minimum_required(VERSION 3.16)
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project(prac_qt)
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set(CMAKE_AUTOMOC ON)
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set(CMAKE_INCLUDE_CURRENT_DIR ON)
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set(CMAKE_CXX_STANDARD 14)
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find_package (Qt5Core)
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find_package (Qt5Widgets)
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qt5_wrap_ui(QT_TEST_UI_HEADERS mainwindow.ui)
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add_executable(prac_qt main.cpp dbmanager.cpp mainwindow.cpp ${QT_TEST_UI_HEADERS})
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target_link_libraries(prac_qt ${Qt5Core_LIBRARIES} ${Qt5Widgets_LIBRARIES})
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207
2sem/programming basics/21/prac_qt/dbmanager.cpp
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207
2sem/programming basics/21/prac_qt/dbmanager.cpp
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// pb_21_100.cpp
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// Горбацевич Андрей
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#include <iostream>
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#include <fstream>
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#include <vector>
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#include <iomanip>
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#include <cstring>
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#include <QtCore/QTextStream>
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namespace nuark {
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class DB_record {
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std::string surname = "";
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unsigned short age = 0;
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std::string city = "";
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enum scholarship {
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HI_ED = 0, SC_ED = 1, SV_RD = 2
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} scs = SV_RD;
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public:
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DB_record() = default;
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void load_txt(std::istream &ist) {
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ist >> this->surname;
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if (this->surname.length() > 32) {
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this->surname = this->surname.substr(0, 32);
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}
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ist >> this->age;
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ist >> this->city;
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if (this->city.length() > 32) {
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this->city = this->city.substr(0, 32);
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}
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{
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std::string comp_str;
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ist >> comp_str;
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if (comp_str[0] == '"') {
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std::string sub_comp_str;
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ist >> sub_comp_str;
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comp_str += " " + sub_comp_str;
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}
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if (comp_str == "higher") {
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this->scs = HI_ED;
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}
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else if (comp_str == "secondary") {
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this->scs = SC_ED;
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}
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else if (comp_str == "\"secondary vocational\"") {
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this->scs = SV_RD;
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}
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}
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}
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void load_bin(std::istream &ist) {
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struct wrapper {
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char _surname[32];
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unsigned short _age;
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char _city[32];
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scholarship _scs;
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} wr{};
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ist.read(reinterpret_cast<char*>(&wr), sizeof(wrapper));
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this->surname = std::string(wr._surname);
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this->age = wr._age;
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this->city = std::string(wr._city);
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this->scs = wr._scs;
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}
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void save_bin(std::ostream &ost) const {
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struct wrapper {
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char _surname[32];
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unsigned short _age;
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char _city[32];
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scholarship _scs;
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} wr{};
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std::strcpy(wr._surname, this->surname.c_str());
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wr._age = this->age;
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std::strcpy(wr._city, this->city.c_str());
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wr._scs = this->scs;
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ost.write(reinterpret_cast<char*>(&wr), sizeof(wrapper));
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}
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static void print_table_head(QTextStream &ost) {
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auto ss = std::stringstream();
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ss.setf(std::ios::left);
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ss << std::string(102, '=') << std::endl;
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ss << std::setw(34) << "| surname";
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ss << std::setw(8) << " | age";
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ss << std::setw(35) << " | city";
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ss << std::setw(23) << " | scholarship" << " |\n";
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ss << std::string(102, '=') << std::endl;
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ost << ss.str().c_str();
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}
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void print_table_row(QTextStream &ost) const {
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auto ss = std::stringstream();
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ss.setf(std::ios::left);
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ss << "| " << std::setw(32) << this->surname;
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ss << " | " << std::setw(5) << this->age;
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ss << " | " << std::setw(32) << this->city;
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ss << " | " << std::setw(20);
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switch (this->scs) {
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case HI_ED:
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ss << "higher";
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break;
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case SC_ED:
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ss << "secondary";
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break;
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case SV_RD:
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ss << "secondary vocational";
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break;
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}
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ss << " |\n";
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auto t = ss.str();
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ost << ss.str().c_str();
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}
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bool validate() {
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return this->surname.length() > 0 && this->age > 0 && this->city.length() > 0;
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}
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};
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struct DBManager {
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typedef std::vector<DB_record> Database;
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std::size_t print_table(const Database &data, QTextStream &ost) {
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std::size_t c = 0;
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DB_record::print_table_head(ost);
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for (const auto& rec : data) {
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rec.print_table_row(ost);
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c++;
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}
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return c;
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}
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std::size_t load_txt(Database &data, std::istream &ist) {
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std::size_t c = 0;
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while (!ist.fail() && !ist.eof()) {
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DB_record record{};
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record.load_txt(ist);
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if (record.validate()) {
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data.push_back(record);
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c++;
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}
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}
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return c;
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}
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std::size_t load_bin(Database &data, std::istream &ist) {
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std::size_t c = 0;
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while (!ist.fail() && !ist.eof()) {
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DB_record record{};
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record.load_bin(ist);
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if (record.validate()) {
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data.push_back(record);
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c++;
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}
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}
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return c;
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}
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std::size_t save_bin(const Database &data, std::ostream &ost) {
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std::size_t c = 0;
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for (const auto& rec : data) {
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rec.save_bin(ost);
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c++;
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}
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return c;
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}
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void first_mode(const QString &path_in, const QString &path_out, QTextStream &stream) {
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std::ifstream ist(path_in.toStdString());
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std::ofstream ost(path_out.toStdString(), std::ios::binary);
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if (!ist.is_open())
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{
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stream << "Unable to open `" << path_in << "`\n";
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}
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else {
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Database db;
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std::size_t trrc = load_txt(db, ist);
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stream << "Read " << trrc << " rows from txt\n";
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std::size_t prc = print_table(db, stream);
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stream << "Print " << prc << " rows from db\n";
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std::size_t brwc = save_bin(db, ost);
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stream << "Write " << brwc << " rows to bin\n";
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}
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ist.close();
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ost.close();
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}
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void second_mode(const QString &path_in, QTextStream &stream) {
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std::ifstream ist(path_in.toStdString(), std::ios::binary);
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if (!ist.is_open())
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{
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stream << "Unable to open `" << path_in << "`\n";
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}
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else {
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Database db;
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std::size_t brrc = load_bin(db, ist);
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stream << "Read " << brrc << " rows from bin\n";
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std::size_t prc = print_table(db, stream);
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stream << "Print " << prc << " rows from db\n";
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}
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ist.close();
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}
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};
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}
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12
2sem/programming basics/21/prac_qt/main.cpp
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12
2sem/programming basics/21/prac_qt/main.cpp
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// pb_21_100.cpp
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// Горбацевич Андрей
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#include "mainwindow.hpp"
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#include <QApplication>
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int main(int argc, char *argv[]) {
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QApplication a(argc, argv);
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MainWindow w;
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w.show();
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return a.exec();
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}
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48
2sem/programming basics/21/prac_qt/mainwindow.cpp
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48
2sem/programming basics/21/prac_qt/mainwindow.cpp
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// pb_21_100.cpp
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// Горбацевич Андрей
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#include "mainwindow.hpp"
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#include "ui_mainwindow.h"
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#include "dbmanager.cpp"
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#include <QIODevice>
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#include <QMessageBox>
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#include <QString>
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#include <QTextStream>
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MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) {
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ui->setupUi(this);
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ui->modeButtonGroup->setId(ui->mode1RadioButton, 1);
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ui->modeButtonGroup->setId(ui->mode2RadioButton, 2);
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}
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MainWindow::~MainWindow() {
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delete ui;
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}
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void MainWindow::on_execPushButton_clicked() {
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nuark::DBManager manager;
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QString out_text;
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QTextStream ost(&out_text, QIODevice::WriteOnly);
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ost << tr("Текстовый файл: ") << ui->textFileLineEdit->text() << "\n"
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<< tr("Двоичный файл: ") << ui->binFileLineEdit->text() << "\n"
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<< tr("Режим: ") << ui->modeButtonGroup->checkedId() << "\n";
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switch (ui->modeButtonGroup->checkedId()) {
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case 1:
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manager.first_mode(
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ui->textFileLineEdit->text(),
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ui->binFileLineEdit->text(),
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ost
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);
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break;
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case 2:
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manager.second_mode(ui->binFileLineEdit->text(), ost);
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break;
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default:
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ost << "No way!\n";
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}
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ui->outTextEdit->setPlainText(out_text);
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}
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26
2sem/programming basics/21/prac_qt/mainwindow.hpp
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26
2sem/programming basics/21/prac_qt/mainwindow.hpp
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// pb_21_100.cpp
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// Горбацевич Андрей
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#ifndef MAINWINDOW_HPP
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#define MAINWINDOW_HPP
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#include <QMainWindow>
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namespace Ui {
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class MainWindow;
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}
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class MainWindow : public QMainWindow {
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Q_OBJECT
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public:
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explicit MainWindow(QWidget *parent = 0);
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~MainWindow();
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private slots:
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void on_execPushButton_clicked();
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private:
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Ui::MainWindow *ui;
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};
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#endif // MAINWINDOW_HPP
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147
2sem/programming basics/21/prac_qt/mainwindow.ui
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147
2sem/programming basics/21/prac_qt/mainwindow.ui
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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>MainWindow</class>
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<widget class="QMainWindow" name="MainWindow">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>937</width>
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<height>526</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>Практическая работа</string>
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</property>
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<widget class="QWidget" name="centralWidget">
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<layout class="QVBoxLayout" name="verticalLayout_2">
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<item>
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<widget class="QGroupBox" name="inputGroupBox">
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<property name="title">
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<string>Ввод</string>
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</property>
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<layout class="QFormLayout" name="formLayout_4">
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<item row="0" column="0">
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<widget class="QLabel" name="textFileLabel">
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<property name="text">
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<string>Текстовый файл</string>
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</property>
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</widget>
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</item>
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<item row="0" column="1">
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<widget class="QLineEdit" name="textFileLineEdit"/>
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</item>
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<item row="1" column="0">
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<widget class="QLabel" name="binFileLabel">
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<property name="text">
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<string>Двоичный файл</string>
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</property>
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</widget>
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</item>
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<item row="1" column="1">
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<widget class="QLineEdit" name="binFileLineEdit"/>
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</item>
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</layout>
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</widget>
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</item>
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<item>
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<widget class="QGroupBox" name="controlGroupBox">
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<property name="title">
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<string>Управление</string>
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</property>
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<layout class="QHBoxLayout" name="horizontalLayout">
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<item>
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<widget class="QRadioButton" name="mode1RadioButton">
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<property name="text">
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<string>Режим 1</string>
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</property>
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<property name="checked">
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<bool>true</bool>
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</property>
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<attribute name="buttonGroup">
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<string notr="true">modeButtonGroup</string>
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</attribute>
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</widget>
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</item>
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<item>
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<widget class="QRadioButton" name="mode2RadioButton">
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<property name="text">
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<string>Режим 2</string>
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</property>
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<attribute name="buttonGroup">
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<string notr="true">modeButtonGroup</string>
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</attribute>
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|
</widget>
|
||||||
|
</item>
|
||||||
|
<item>
|
||||||
|
<widget class="QPushButton" name="execPushButton">
|
||||||
|
<property name="text">
|
||||||
|
<string>Выполнить</string>
|
||||||
|
</property>
|
||||||
|
<property name="autoDefault">
|
||||||
|
<bool>true</bool>
|
||||||
|
</property>
|
||||||
|
<property name="default">
|
||||||
|
<bool>false</bool>
|
||||||
|
</property>
|
||||||
|
</widget>
|
||||||
|
</item>
|
||||||
|
</layout>
|
||||||
|
</widget>
|
||||||
|
</item>
|
||||||
|
<item>
|
||||||
|
<widget class="QGroupBox" name="outGroupBox">
|
||||||
|
<property name="title">
|
||||||
|
<string>Вывод</string>
|
||||||
|
</property>
|
||||||
|
<layout class="QVBoxLayout" name="verticalLayout_3">
|
||||||
|
<item>
|
||||||
|
<widget class="QPlainTextEdit" name="outTextEdit">
|
||||||
|
<property name="enabled">
|
||||||
|
<bool>true</bool>
|
||||||
|
</property>
|
||||||
|
<property name="font">
|
||||||
|
<font>
|
||||||
|
<family>Monospace</family>
|
||||||
|
</font>
|
||||||
|
</property>
|
||||||
|
<property name="readOnly">
|
||||||
|
<bool>true</bool>
|
||||||
|
</property>
|
||||||
|
<property name="plainText">
|
||||||
|
<string/>
|
||||||
|
</property>
|
||||||
|
</widget>
|
||||||
|
</item>
|
||||||
|
</layout>
|
||||||
|
</widget>
|
||||||
|
</item>
|
||||||
|
</layout>
|
||||||
|
</widget>
|
||||||
|
<widget class="QStatusBar" name="statusBar"/>
|
||||||
|
<widget class="QToolBar" name="mainToolBar">
|
||||||
|
<attribute name="toolBarArea">
|
||||||
|
<enum>TopToolBarArea</enum>
|
||||||
|
</attribute>
|
||||||
|
<attribute name="toolBarBreak">
|
||||||
|
<bool>false</bool>
|
||||||
|
</attribute>
|
||||||
|
</widget>
|
||||||
|
<widget class="QMenuBar" name="menuBar">
|
||||||
|
<property name="geometry">
|
||||||
|
<rect>
|
||||||
|
<x>0</x>
|
||||||
|
<y>0</y>
|
||||||
|
<width>937</width>
|
||||||
|
<height>30</height>
|
||||||
|
</rect>
|
||||||
|
</property>
|
||||||
|
</widget>
|
||||||
|
</widget>
|
||||||
|
<layoutdefault spacing="6" margin="11"/>
|
||||||
|
<resources/>
|
||||||
|
<connections/>
|
||||||
|
<buttongroups>
|
||||||
|
<buttongroup name="modeButtonGroup"/>
|
||||||
|
</buttongroups>
|
||||||
|
</ui>
|
||||||
35
2sem/programming basics/21/prac_qt/pract_qt.pro
Normal file
35
2sem/programming basics/21/prac_qt/pract_qt.pro
Normal file
|
|
@ -0,0 +1,35 @@
|
||||||
|
#-------------------------------------------------
|
||||||
|
#
|
||||||
|
# Project created by QtCreator 2020-04-26T10:59:45
|
||||||
|
#
|
||||||
|
#-------------------------------------------------
|
||||||
|
|
||||||
|
QT += core gui
|
||||||
|
|
||||||
|
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
|
||||||
|
|
||||||
|
TARGET = pract_qt
|
||||||
|
TEMPLATE = app
|
||||||
|
|
||||||
|
# The following define makes your compiler emit warnings if you use
|
||||||
|
# any feature of Qt which has been marked as deprecated (the exact warnings
|
||||||
|
# depend on your compiler). Please consult the documentation of the
|
||||||
|
# deprecated API in order to know how to port your code away from it.
|
||||||
|
DEFINES += QT_DEPRECATED_WARNINGS
|
||||||
|
|
||||||
|
# You can also make your code fail to compile if you use deprecated APIs.
|
||||||
|
# In order to do so, uncomment the following line.
|
||||||
|
# You can also select to disable deprecated APIs only up to a certain version of Qt.
|
||||||
|
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
|
||||||
|
|
||||||
|
|
||||||
|
SOURCES += \
|
||||||
|
main.cpp \
|
||||||
|
dbmanager.cpp \
|
||||||
|
mainwindow.cpp
|
||||||
|
|
||||||
|
HEADERS += \
|
||||||
|
mainwindow.hpp
|
||||||
|
|
||||||
|
FORMS += \
|
||||||
|
mainwindow.ui
|
||||||
Loading…
Add table
Add a link
Reference in a new issue