/* * Copyright (C) 2020-2022 Roy Qu (royqh1979@gmail.com) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #ifndef REDPANDA_QT_UTILS_H #define REDPANDA_QT_UTILS_H #include #include #include #include #include #include #include #include #include class QByteArray; class QTextStream; class QTextCodec; #define ENCODING_AUTO_DETECT "AUTO" #define ENCODING_UTF8 "UTF-8" #define ENCODING_UTF16 "UTF-16" #define ENCODING_UTF32 "UTF-32" #define ENCODING_UTF8_BOM "UTF-8 BOM" #define ENCODING_UTF16_BOM "UTF-16 BOM" #define ENCODING_UTF32_BOM "UTF-32 BOM" #define ENCODING_SYSTEM_DEFAULT "SYSTEM" #define ENCODING_ASCII "ASCII" #define ENCODING_PROJECT "PROJECT" enum class NewlineType { Windows, Unix, MacOld };// Windows: CRLF, UNIX: LF, Old Mac OS: CR (old mac os, not mac os x) class BaseError{ public: explicit BaseError(const QString& reason); QString reason() const; protected: QString mReason; }; class IndexOutOfRange:public BaseError { public: explicit IndexOutOfRange(int Index); }; class FileError: public BaseError { public: explicit FileError(const QString& reason); }; /* text processing utils */ const QByteArray guessTextEncoding(const QByteArray& text); bool isBinaryContent(const QByteArray& text); bool isTextAllAscii(const QByteArray& text); bool isTextAllAscii(const QString& text); bool isNonPrintableAsciiChar(char ch); using LineProcessFunc = std::function; QStringList textToLines(const QString& text); void textToLines(const QString& text, LineProcessFunc lineFunc); QString linesToText(const QStringList& lines, const QString& lineBreak="\n"); QList splitByteArrayToLines(const QByteArray& content); QString trimRight(const QString& s); QString trimLeft(const QString& s); int countLeadingWhitespaceChars(const QString& line); bool stringIsBlank(const QString& s); QByteArray toByteArray(const QString& s); QString fromByteArray(const QByteArray& s); /* text I/O utils */ QStringList readStreamToLines(QTextStream* stream); void readStreamToLines(QTextStream* stream, LineProcessFunc lineFunc); /** * @brief readFileToLines * @param fileName * @param codec * @return */ QStringList readFileToLines(const QString& fileName, QTextCodec* codec); QStringList readFileToLines(const QString& fileName); void readFileToLines(const QString& fileName, QTextCodec* codec, LineProcessFunc lineFunc); QByteArray readFileToByteArray(const QString& fileName); bool stringsToFile(const QStringList& list, const QString& fileName); bool stringToFile(const QString& str, const QString& fileName); void createFile(const QString& fileName); /* File I/O utils */ bool fileExists(const QString& file); bool fileExists(const QString& dir, const QString& fileName); bool directoryExists(const QString& file); bool removeFile(const QString& filename); void copyFolder(const QString &fromDir, const QString& toDir); bool copyFile(const QString &fromFile, const QString& toFile, bool overwrite); bool isInFolder(const QString& folderpath, const QString& filepath); QString includeTrailingPathDelimiter(const QString& path); QString excludeTrailingPathDelimiter(const QString& path); QString changeFileExt(const QString& filename, QString ext); QString localizePath(const QString& path); QString extractRelativePath(const QString& base, const QString& dest); QStringList extractRelativePaths(const QString& base, const QStringList& destList); QString extractFileName(const QString& fileName); QString extractFileDir(const QString& fileName); QString extractFilePath(const QString& filePath); QString extractAbsoluteFilePath(const QString& filePath); QString cleanPath(const QString& dirPath); QString generateAbsolutePath(const QString& dirPath, const QString& relativePath); QStringList absolutePaths(const QString& dirPath, const QStringList& relativePaths); QString escapeSpacesInString(const QString& str); bool isReadOnly(const QString& filename); int compareFileModifiedTime(const QString& filename1, const QString& filename2); /* UI utils */ void inflateRect(QRect& rect, int delta); void inflateRect(QRect& rect, int dx, int dy); int screenDPI(); void setScreenDPI(int dpi); float pointToPixel(float point); float pointToPixel(float point, float dpi); float pixelToPoint(float pixel); void decodeKey(int combinedKey, int& key, Qt::KeyboardModifiers& modifiers); /** * from https://github.com/Microsoft/GSL **/ template class final_action { public: static_assert(!std::is_reference::value && !std::is_const::value && !std::is_volatile::value, "Final_action should store its callable by value"); explicit final_action(F f) noexcept : f_(std::move(f)) {} final_action(final_action&& other) noexcept : f_(std::move(other.f_)), invoke_(std::exchange(other.invoke_, false)) {} final_action(const final_action&) = delete; final_action& operator=(const final_action&) = delete; final_action& operator=(final_action&&) = delete; ~final_action() noexcept { if (invoke_) f_(); } private: F f_; bool invoke_{true}; }; template final_action::type>::type> finally(F&& f) noexcept { return final_action::type>::type>( std::forward(f)); } #endif // UTILS_H