From e0964bbc4f66e7d193abd249213c9cf762fd0294 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Wed, 30 Dec 2020 15:37:39 +0800
Subject: import(life): ...

---
 works/life/cpp-practicum/main.cpp | 297 ++++----------------------------------
 1 file changed, 25 insertions(+), 272 deletions(-)

(limited to 'works/life/cpp-practicum/main.cpp')

diff --git a/works/life/cpp-practicum/main.cpp b/works/life/cpp-practicum/main.cpp
index 0f90b74..a6c92e5 100644
--- a/works/life/cpp-practicum/main.cpp
+++ b/works/life/cpp-practicum/main.cpp
@@ -1,281 +1,34 @@
-#include "Base.hpp"
-#include "StringUtil.hpp"
+#include "qboxlayout.h"
+#include "qnamespace.h"
+#include <QApplication>
+#include <QHBoxLayout>
+#include <QMainWindow>
+#include <QPushButton>
+#include <QVBoxLayout>
+#include <QWidget>
 
-#include <fstream>
-#include <iostream>
-#include <optional>
-#include <ostream>
-#include <stdexcept>
-#include <string>
-#include <string_view>
-#include <type_traits>
+int main(int argc, char *argv[]) {
+  QApplication application(argc, argv);
 
-inline std::u16string_view ToUtf16View(const std::wstring &str) {
-  return std::u16string_view(reinterpret_cast<const char16_t *>(str.c_str()),
-                             str.size());
-}
-
-inline std::wstring_view ToWStringView(std::u16string_view str) {
-  return std::wstring_view(reinterpret_cast<const wchar_t *>(str.data()),
-                           str.size());
-}
-
-class SerializationException : public std::runtime_error {
-public:
-  using runtime_error::runtime_error;
-};
-
-std::vector<std::string_view> SplitByVerticalLine(std::string_view str,
-                                                  int field_count) {
-  std::vector<std::string_view> fields;
-  gsl::index current_position = 0;
-
-  for (int i = 0; i < field_count - 1; i++) {
-    auto pos = str.find('|', current_position);
-    if (pos == std::string::npos) {
-      throw SerializationException("Failed to find next splitter('|').");
-    }
-    fields.push_back(str.substr(current_position, pos - current_position));
-    current_position = pos + 1;
-  }
-  fields.push_back(str.substr(current_position));
-
-  return fields;
-}
-
-class Book final {
-public:
-  Book() = default;
-
-  Book(std::u16string isbn, std::u16string title, std::u16string type,
-       std::u16string author, std::u16string press, int stock_count)
-      : isbn_(std::move(isbn)), title_(std::move(title)),
-        type_(std::move(type)), author_(std::move(author)),
-        press_(std::move(press)), stock_count_(stock_count) {}
-
-  CRU_DEFAULT_COPY(Book)
-  CRU_DEFAULT_MOVE(Book)
-
-  ~Book() = default;
-
-public:
-  std::u16string GetIsbn() const { return isbn_; }
-  void SetIsbn(std::u16string isbn) { isbn_ = std::move(isbn); }
-
-  std::u16string GetTitle() const { return title_; }
-  void SetTitle(std::u16string title) { title_ = std::move(title); }
-
-  std::u16string GetType() const { return type_; }
-  void SetType(std::u16string type) { type_ = std::move(type); }
-
-  std::u16string GetAuthor() const { return author_; }
-  void SetAuthor(std::u16string author) { author_ = std::move(author); }
-
-  std::u16string GetPress() const { return press_; }
-  void SetPress(std::u16string press) { press_ = std::move(press); }
-
-  int GetStockCount() const { return stock_count_; }
-  void SetStockCount(int stock_count) { stock_count_ = stock_count; }
-
-private:
-  std::u16string isbn_;
-  std::u16string title_;
-  std::u16string type_;
-  std::u16string author_;
-  std::u16string press_;
-  int stock_count_;
-};
-
-std::istream &operator>>(std::istream &left, Book &right) {
-  std::string line;
-  std::getline(left, line);
-
-  std::vector<std::string_view> fields = SplitByVerticalLine(line, 6);
-
-  right.SetIsbn(cru::ToUtf16(fields[0]));
-  right.SetTitle(cru::ToUtf16(fields[1]));
-  right.SetType(cru::ToUtf16(fields[2]));
-  right.SetAuthor(cru::ToUtf16(fields[3]));
-  right.SetPress(cru::ToUtf16(fields[4]));
-  right.SetStockCount(std::stoi(std::string(fields[5])));
-
-  return left;
-}
-
-std::ostream &operator<<(std::ostream &left, const Book &right) {
-  left << cru::ToUtf8(right.GetIsbn()) << '|' << cru::ToUtf8(right.GetTitle())
-       << '|' << cru::ToUtf8(right.GetType()) << '|'
-       << cru::ToUtf8(right.GetAuthor()) << '|' << cru::ToUtf8(right.GetPress())
-       << '|' << right.GetStockCount();
-  return left;
-}
-
-void PrettyPrint(std::wostream &stream, const Book &book) {
-  stream << L"ISBN: " << ToWStringView(book.GetIsbn()) << L"\n";
-  stream << L"标题: " << ToWStringView(book.GetTitle()) << L"\n";
-  stream << L"类型: " << ToWStringView(book.GetType()) << L"\n";
-  stream << L"作者: " << ToWStringView(book.GetAuthor()) << L"\n";
-  stream << L"出版社: " << ToWStringView(book.GetPress()) << L"\n";
-  stream << L"库存: " << book.GetStockCount() << L"\n";
-}
-
-class Vendor final {
-public:
-  Vendor() = default;
-  Vendor(int id, std::u16string name, std::u16string type,
-         std::u16string address, std::u16string phone)
-      : id_(id), name_(std::move(name)), type_(std::move(type)),
-        address_(std::move(address)), phone_(std::move(phone)) {}
-
-  CRU_DEFAULT_COPY(Vendor)
-  CRU_DEFAULT_MOVE(Vendor)
-
-  ~Vendor() = default;
-
-public:
-  int GetId() const { return id_; }
-  void SetId(int id) { id_ = id; }
-
-  std::u16string GetName() const { return name_; }
-  void SetName(std::u16string name) { name_ = std::move(name); }
-
-  std::u16string GetType() const { return type_; }
-  void SetType(std::u16string type) { type_ = std::move(type); }
-
-  std::u16string GetAddress() const { return address_; }
-  void SetAddress(std::u16string address) { address_ = std::move(address); }
-
-  std::u16string GetPhone() const { return phone_; }
-  void SetPhone(std::u16string phone) { phone_ = std::move(phone); }
-
-private:
-  int id_;
-  std::u16string name_;
-  std::u16string type_;
-  std::u16string address_;
-  std::u16string phone_;
-};
-
-std::istream &operator>>(std::istream &left, Vendor &right) {
-  std::string line;
-  std::getline(left, line);
-
-  std::vector<std::string_view> fields = SplitByVerticalLine(line, 5);
-
-  right.SetId(std::stoi(std::string(fields[0])));
-  right.SetName(cru::ToUtf16(fields[1]));
-  right.SetType(cru::ToUtf16(fields[2]));
-  right.SetAddress(cru::ToUtf16(fields[3]));
-  right.SetPhone(cru::ToUtf16(fields[4]));
-
-  return left;
-}
-
-std::ostream &operator<<(std::ostream &left, const Vendor &right) {
-  left << right.GetId() << '|' << cru::ToUtf8(right.GetName()) << '|'
-       << cru::ToUtf8(right.GetType()) << '|' << cru::ToUtf8(right.GetAddress())
-       << '|' << cru::ToUtf8(right.GetPhone());
-  return left;
-}
-
-class Record final {
-public:
-  Record();
-
-  CRU_DEFAULT_COPY(Record);
-  CRU_DEFAULT_MOVE(Record);
-
-  ~Record() = default;
-
-public:
-  void WriteTo(std::ostream &stream);
-  void ReadFrom(std::istream &stream);
-
-  const std::vector<Book> &GetBooks() const { return books_; }
-  const std::vector<Vendor> &GetVendors() const { return vendors_; }
-
-  // TODO: Implementation
-  std::optional<Book> FindBookByIsbn(std::u16string_view isbn);
-
-  // TODO: Implementation
-  void RemoveBookByIsbn(std::u16string_view isbn);
-
-private:
-  std::vector<Book> books_;
-  std::vector<Vendor> vendors_;
-};
-
-void Record::WriteTo(std::ostream &stream) {
-  stream << books_.size() << ' ' << vendors_.size() << '\n';
-  for (const auto &book : books_) {
-    stream << book << '\n';
-  }
-  for (const auto &vendor : vendors_) {
-    stream << vendor << '\n';
-  }
-}
-
-void Record::ReadFrom(std::istream &stream) {
-  books_.clear();
-  vendors_.clear();
-  int book_count, vendor_count;
-  stream >> book_count >> vendor_count;
-  stream >> std::ws;
-  for (int i = 0; i < book_count; i++) {
-    Book book;
-    stream >> book;
-    books_.push_back(std::move(book));
-  }
-  for (int i = 0; i < vendor_count; i++) {
-    Vendor vendor;
-    stream >> vendor;
-    vendors_.push_back(std::move(vendor));
-  }
-}
+  QMainWindow main_window;
 
-int main() {
-  Record record;
+  QWidget centeral_area;
+  QVBoxLayout central_area_layout;
+  centeral_area.setLayout(&central_area_layout);
 
-  while (true) {
-    std::wcout << L"1. 查询 2. 添加 0. 退出\n";
-    int choice = 0;
-    std::wcin >> choice;
-    if (choice == 1) {
-      std::wcout
-          << L"1. 图书 2. 供应商\n输入数字选择操作，其他任意字符将退出程序。\n";
-      choice = 0;
-      std::wcin >> choice;
-      if (choice == 1) {
-        std::wcout << L"请输入图书编号：\n";
-        std::wstring isbn;
-        std::wcin >> isbn;
-        auto find_result = record.FindBookByIsbn(ToUtf16View(isbn));
-        if (find_result) {
-          PrettyPrint(std::wcout, *find_result);
-          std::wcout << L"0. 返回主菜单 1. 修改 2. 删除\n";
-          choice = 0;
-          std::wcin >> choice;
-          if (choice == 1) {
-            // TODO: 
-          } else if (choice == 2) {
-            record.RemoveBookByIsbn(ToUtf16View(isbn));
-            std::wcout << L"删除成功。\n";
-          }
-        } else {
-          std::wcout << L"该书不存在。\n";
-        }
-      } else if (choice == 2) {
+  main_window.setCentralWidget(&centeral_area);
 
-      } else {
-        return 0;
-      }
+  QWidget top_bar;
+  QHBoxLayout top_bar_layout;
+  top_bar.setLayout(&top_bar_layout);
+  central_area_layout.addWidget(&top_bar);
 
-    } else if (choice == 2) {
+  QPushButton import_button(QStringLiteral("导入"));
+  QPushButton export_button(QStringLiteral("导出"));
+  top_bar_layout.addWidget(&import_button);
+  top_bar_layout.addWidget(&export_button);
 
-    } else {
-      return 0;
-    }
-  }
+  main_window.show();
 
-  return 0;
+  return application.exec();
 }
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