664 lines
16 KiB
C++
664 lines
16 KiB
C++
/*
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* Copyright (C) 2020-2022 Roy Qu (royqh1979@gmail.com)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "qt_utils/utils.h"
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#include <QApplication>
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#include <QByteArray>
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#include <QDir>
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#include <QFile>
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#include <QFileInfo>
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#include <QProcess>
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#include <QProcessEnvironment>
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#include <QString>
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#include <QTextCodec>
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#include <QtGlobal>
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#include <QDebug>
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#include <QStyleFactory>
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#include <QDateTime>
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#include <QColor>
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#include <QWindow>
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#include <QScreen>
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#include <QDirIterator>
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#ifdef Q_OS_WIN
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#include <QDirIterator>
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#include <QMimeDatabase>
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#include <windows.h>
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#endif
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BaseError::BaseError(const QString &reason):
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mReason(reason)
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{
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}
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QString BaseError::reason() const
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{
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return mReason;
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}
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IndexOutOfRange::IndexOutOfRange(int Index):
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BaseError(QObject::tr("Index %1 out of range").arg(Index))
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{
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}
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FileError::FileError(const QString &reason): BaseError(reason)
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{
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}
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const QByteArray guessTextEncoding(const QByteArray& text){
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bool allAscii;
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int ii;
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int size;
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const QByteArray& s=text;
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size = s.length();
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if ( (size >= 3) && ((unsigned char)s[0]==0xEF) && ((unsigned char)s[1]==0xBB) && ((unsigned char)s[2]==0xBF)) {
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return ENCODING_UTF8_BOM;
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}
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allAscii = true;
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ii = 0;
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while (ii < size) {
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unsigned char ch = s[ii];
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if (ch < 0x80 ) {
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ii++; // is an ascii char
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} else if (ch < 0xC0) { // value between 0x80 and 0xC0 is an invalid UTF-8 char
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return ENCODING_SYSTEM_DEFAULT;
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} else if (ch < 0xE0) { // should be an 2-byte UTF-8 char
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if (ii>=size-1) {
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return ENCODING_SYSTEM_DEFAULT;
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}
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unsigned char ch2=s[ii+1];
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if ((ch2 & 0xC0) !=0x80) {
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return ENCODING_SYSTEM_DEFAULT;
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}
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allAscii = false;
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ii+=2;
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} else if (ch < 0xF0) { // should be an 3-byte UTF-8 char
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if (ii>=size-2) {
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return ENCODING_SYSTEM_DEFAULT;
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}
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unsigned char ch2=s[ii+1];
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unsigned char ch3=s[ii+2];
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if (((ch2 & 0xC0)!=0x80) || ((ch3 & 0xC0)!=0x80)) {
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return ENCODING_SYSTEM_DEFAULT;
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}
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allAscii = false;
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ii+=3;
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} else { // invalid UTF-8 char
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return ENCODING_SYSTEM_DEFAULT;
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}
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}
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if (allAscii)
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return ENCODING_ASCII;
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return ENCODING_UTF8;
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}
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bool isTextAllAscii(const QByteArray& text) {
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for (char c:text) {
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if (c<0) {
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return false;
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}
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}
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return true;
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}
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bool isTextAllAscii(const QString& text) {
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for (QChar c:text) {
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if (c.unicode()>127) {
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return false;
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}
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}
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return true;
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}
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bool isNonPrintableAsciiChar(char ch)
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{
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return (ch<=32) && (ch>=0);
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}
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QStringList textToLines(const QString &text)
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{
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QTextStream stream(&((QString&)text),QIODevice::ReadOnly);
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return readStreamToLines(&stream);
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}
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void textToLines(const QString &text, LineProcessFunc lineFunc)
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{
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QTextStream stream(&((QString&)text),QIODevice::ReadOnly);
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readStreamToLines(&stream,lineFunc);
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}
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QString linesToText(const QStringList &lines, const QString& lineBreak)
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{
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return lines.join(lineBreak);
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}
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QList<QByteArray> splitByteArrayToLines(const QByteArray &content)
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{
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QList<QByteArray> lines;
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const char* p =content.constData();
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const char* end = p+content.length();
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const char* lineStart = p;
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QByteArray line;
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while (p<=end) {
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char ch=*p;
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switch(ch) {
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case '\r':
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line = QByteArray(lineStart, p-lineStart);
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lines.append(line);
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p++;
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if (*p=='\n')
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p++;
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lineStart = p;
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break;
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case '\n':
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line = QByteArray(lineStart, p-lineStart);
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lines.append(line);
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p++;
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lineStart = p;
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break;
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default:
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p++;
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}
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}
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if (lineStart>end) {
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lines.append("");
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} else {
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line = QByteArray(lineStart, end-lineStart+1);
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lines.append(line);
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}
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return lines;
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}
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QString trimRight(const QString &s)
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{
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if (s.isEmpty())
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return s;
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int i = s.length()-1;
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// while ((i>=0) && ((s[i] == '\r') || (s[i]=='\n') || (s[i] == '\t') || (s[i]==' '))) {
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while ((i>=0) && (s[i]<=32)) {
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i--;
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};
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if (i>=0) {
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return s.left(i+1);
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} else {
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return QString();
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}
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}
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QString trimLeft(const QString &s)
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{
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if (s.isEmpty())
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return s;
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int i=0;
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// while ((i<s.length()) && ((s[i] == '\r') || (s[i]=='\n') || (s[i] == '\t') || (s[i]==' '))) {
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// i++;
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// };
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while ((i<s.length()) && (s[i]<=32)) {
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i++;
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};
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if (i<s.length()) {
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return s.mid(i);
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} else {
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return QString();
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}
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}
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int countLeadingWhitespaceChars(const QString &line)
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{
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int n=0;
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while (n<line.length()) {
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if (line[n].unicode()>32)
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break;
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n++;
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}
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return n;
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}
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bool stringIsBlank(const QString &s)
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{
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for (QChar ch:s) {
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if (ch != ' ' && ch != '\t')
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return false;
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}
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return true;
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}
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QByteArray toByteArray(const QString &s)
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{
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//return s.toLocal8Bit();
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return s.toUtf8();
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}
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QString fromByteArray(const QByteArray &s)
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{
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QTextCodec* codec = QTextCodec::codecForName(ENCODING_UTF8);
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QTextCodec::ConverterState state;
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if (!codec)
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return QString(s);
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QString tmp = codec->toUnicode(s,s.length(),&state);
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if (state.invalidChars>0)
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tmp = QString::fromLocal8Bit(s);
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return tmp;
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}
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QStringList readStreamToLines(QTextStream *stream)
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{
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QStringList list;
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QString s;
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while (stream->readLineInto(&s)) {
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list.append(s);
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}
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return list;
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}
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void readStreamToLines(QTextStream *stream,
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LineProcessFunc lineFunc)
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{
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QString s;
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while (stream->readLineInto(&s)) {
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lineFunc(s);
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}
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}
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QStringList readFileToLines(const QString& fileName, QTextCodec* codec)
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{
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QFile file(fileName);
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if (file.open(QFile::ReadOnly)) {
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QTextStream stream(&file);
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stream.setCodec(codec);
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stream.setAutoDetectUnicode(false);
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return readStreamToLines(&stream);
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}
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return QStringList();
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}
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void readFileToLines(const QString &fileName, QTextCodec *codec, LineProcessFunc lineFunc)
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{
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QFile file(fileName);
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if (file.open(QFile::ReadOnly)) {
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QTextStream stream(&file);
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stream.setCodec(codec);
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stream.setAutoDetectUnicode(false);
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readStreamToLines(&stream, lineFunc);
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}
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}
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QStringList readFileToLines(const QString &fileName)
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{
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QFile file(fileName);
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if (file.size()<=0)
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return QStringList();
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QTextCodec* codec = QTextCodec::codecForLocale();
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QStringList result;
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QTextCodec::ConverterState state;
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bool ok = true;
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if (file.open(QFile::ReadOnly)) {
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while (!file.atEnd()) {
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QByteArray array = file.readLine();
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QString s = codec->toUnicode(array,array.length(),&state);
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if (state.invalidChars>0) {
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ok=false;
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break;
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}
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if (s.endsWith("\r\n")) {
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s.remove(s.length()-2,2);
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} else if (s.endsWith("\r")) {
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s.remove(s.length()-1,1);
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} else if (s.endsWith("\n")){
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s.remove(s.length()-1,1);
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}
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result.append(s);
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}
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if (!ok) {
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file.seek(0);
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result.clear();
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codec = QTextCodec::codecForName("UTF-8");
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while (!file.atEnd()) {
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QByteArray array = file.readLine();
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QString s = codec->toUnicode(array,array.length(),&state);
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if (state.invalidChars>0) {
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result.clear();
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break;
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}
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if (s.endsWith("\r\n")) {
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s.remove(s.length()-2,2);
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} else if (s.endsWith("\r")) {
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s.remove(s.length()-1,1);
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} else if (s.endsWith("\n")){
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s.remove(s.length()-1,1);
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}
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result.append(s);
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}
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}
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}
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return result;
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}
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QByteArray readFileToByteArray(const QString &fileName)
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{
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QFile file(fileName);
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if (file.open(QFile::ReadOnly)) {
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return file.readAll();
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}
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return QByteArray();
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}
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void stringToFile(const QString &str, const QString &fileName)
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{
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QFile file(fileName);
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if (file.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
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QTextStream stream(&file);
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stream<<str;
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}
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}
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void stringsToFile(const QStringList &list, const QString &fileName)
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{
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QFile file(fileName);
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if (file.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
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QTextStream stream(&file);
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for (const QString& s:list) {
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stream<<s
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#if QT_VERSION >= QT_VERSION_CHECK(5,15,0)
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<<Qt::endl;
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#else
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<<endl;
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#endif
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}
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}
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}
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bool fileExists(const QString &file)
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{
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if (file.isEmpty())
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return false;
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return QFile(file).exists();
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}
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bool fileExists(const QString &dir, const QString &fileName)
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{
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if (dir.isEmpty() || fileName.isEmpty())
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return false;
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QDir dirInfo(dir);
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return dirInfo.exists(fileName);
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}
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bool directoryExists(const QString &file)
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{
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if (file.isEmpty())
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return false;
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QFileInfo dir(file);
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return dir.exists() && dir.isDir();
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}
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bool removeFile(const QString &filename)
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{
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QFile file(filename);
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return file.remove();
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}
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bool copyFile(const QString &fromPath, const QString &toPath, bool overwrite)
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{
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QFile fromFile(fromPath);
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QFile toFile(toPath);
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if (!fromFile.exists())
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return false;
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if (toFile.exists()) {
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if (!overwrite)
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return false;
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if (!toFile.remove())
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return false;
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}
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if (!fromFile.open(QFile::ReadOnly))
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return false;
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if (!toFile.open(QFile::WriteOnly | QFile::Truncate))
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return false;
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int bufferSize=64*1024;
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char buffer[bufferSize];
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while (!fromFile.atEnd()) {
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int readed = fromFile.read(buffer,bufferSize);
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toFile.write(buffer,readed);
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}
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toFile.close();
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fromFile.close();
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return true;
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}
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void copyFolder(const QString &fromDir, const QString &toDir)
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{
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QDirIterator it(fromDir);
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QDir dir(fromDir);
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QDir targetDir(toDir);
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const int absSourcePathLength = dir.absolutePath().length();
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if (targetDir.exists())
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return;
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targetDir.mkpath(targetDir.absolutePath());
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while (it.hasNext()){
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it.next();
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const auto fileInfo = it.fileInfo();
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if(!fileInfo.isHidden() && !fileInfo.fileName().startsWith('.')) { //filters dot and dotdot
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const QString subPathStructure = fileInfo.absoluteFilePath().mid(absSourcePathLength);
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const QString constructedAbsolutePath = targetDir.absolutePath() + subPathStructure;
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if(fileInfo.isDir()){
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//Create directory in target folder
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dir.mkpath(constructedAbsolutePath);
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copyFolder(fileInfo.absoluteFilePath(), constructedAbsolutePath);
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} else if(fileInfo.isFile()) {
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//Copy File to target directory
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//Remove file at target location, if it exists, or QFile::copy will fail
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QFile::remove(constructedAbsolutePath);
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QFile::copy(fileInfo.absoluteFilePath(), constructedAbsolutePath);
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QFile newFile(constructedAbsolutePath);
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QFile::Permissions permissions = newFile.permissions();
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permissions |= (QFile::Permission::WriteOwner
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| QFile::Permission::WriteUser
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| QFile::Permission::WriteGroup
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| QFile::Permission::WriteOther);
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newFile.setPermissions(permissions);
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}
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}
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}
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}
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QString includeTrailingPathDelimiter(const QString &path)
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{
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if (path.endsWith('/') || path.endsWith(QDir::separator())) {
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return path;
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} else {
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return path + "/";
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}
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}
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QString excludeTrailingPathDelimiter(const QString &path)
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{
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int pos = path.length()-1;
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while (pos>=0 && (path[pos]=='/' || path[pos]==QDir::separator()))
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pos--;
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return path.mid(0,pos+1);
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}
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QString changeFileExt(const QString& filename, QString ext)
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{
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QFileInfo fileInfo(filename);
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QString suffix = fileInfo.suffix();
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QString name = fileInfo.fileName();
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QString path;
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if (!ext.isEmpty() && !ext.startsWith(".")) {
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ext = "."+ext;
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}
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if (fileInfo.path() != ".") {
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path = includeTrailingPathDelimiter(fileInfo.path());
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}
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if (suffix.isEmpty()) {
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return path+filename+ext;
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} else {
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return path+fileInfo.completeBaseName()+ext;
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}
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}
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QString extractRelativePath(const QString &base, const QString &dest)
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{
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QFileInfo baseInfo(base);
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QDir baseDir;
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if (baseInfo.isDir()) {
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baseDir = QDir(baseInfo.absoluteFilePath());
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} else {
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baseDir = baseInfo.absoluteDir();
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}
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return baseDir.relativeFilePath(dest);
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}
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QString localizePath(const QString &path)
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{
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QString result = path;
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result.replace("/",QDir::separator());
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return result;
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}
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QString extractFileName(const QString &fileName)
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{
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QFileInfo fileInfo(fileName);
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return fileInfo.fileName();
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}
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QString extractFileDir(const QString &fileName)
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{
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return extractFilePath(fileName);
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}
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QString extractFilePath(const QString &filePath)
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{
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QFileInfo info(filePath);
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return info.path();
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}
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|
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QString extractAbsoluteFilePath(const QString &filePath)
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{
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QFileInfo info(filePath);
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return info.absoluteFilePath();
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}
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|
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bool isReadOnly(const QString &filename)
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{
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return QFile(filename).isWritable();
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}
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|
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int compareFileModifiedTime(const QString &filename1, const QString &filename2)
|
|
{
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|
QFileInfo fileInfo1(filename1);
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|
QFileInfo fileInfo2(filename2);
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|
qint64 time1=fileInfo1.lastModified().toMSecsSinceEpoch();
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|
qint64 time2=fileInfo2.lastModified().toMSecsSinceEpoch();
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|
if (time1 > time2)
|
|
return 1;
|
|
if (time1 < time2)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
|
|
void inflateRect(QRect &rect, int delta)
|
|
{
|
|
inflateRect(rect,delta,delta);
|
|
}
|
|
|
|
void inflateRect(QRect &rect, int dx, int dy)
|
|
{
|
|
rect.setLeft(rect.left()-dx);
|
|
rect.setRight(rect.right()+dx);
|
|
rect.setTop(rect.top()-dy);
|
|
rect.setBottom(rect.bottom()+dy);
|
|
}
|
|
|
|
|
|
static int defaultScreenDPI = -1;
|
|
|
|
int screenDPI()
|
|
{
|
|
if (defaultScreenDPI<1) {
|
|
defaultScreenDPI = qApp->primaryScreen()->logicalDotsPerInch();
|
|
}
|
|
return defaultScreenDPI;
|
|
}
|
|
|
|
|
|
void setScreenDPI(int dpi)
|
|
{
|
|
defaultScreenDPI = dpi;
|
|
}
|
|
|
|
float pointToPixel(float point, float dpi)
|
|
{
|
|
return point * dpi / 72;
|
|
}
|
|
|
|
float pointToPixel(float point)
|
|
{
|
|
return pointToPixel(point,screenDPI());
|
|
}
|
|
|
|
float pixelToPoint(float pixel)
|
|
{
|
|
return pixel * 72 / screenDPI();
|
|
}
|
|
|
|
|
|
void decodeKey(const int combinedKey, int &key, Qt::KeyboardModifiers &modifiers)
|
|
{
|
|
modifiers = Qt::NoModifier;
|
|
if (combinedKey & Qt::ShiftModifier) {
|
|
modifiers|=Qt::ShiftModifier;
|
|
}
|
|
if (combinedKey & Qt::ControlModifier) {
|
|
modifiers|=Qt::ControlModifier;
|
|
}
|
|
if (combinedKey & Qt::AltModifier) {
|
|
modifiers|=Qt::AltModifier;
|
|
}
|
|
if (combinedKey & Qt::MetaModifier) {
|
|
modifiers|=Qt::MetaModifier;
|
|
}
|
|
if (combinedKey & Qt::KeypadModifier) {
|
|
modifiers|= Qt::KeypadModifier;
|
|
}
|
|
key = combinedKey & ~(Qt::ShiftModifier | Qt::ControlModifier | Qt::AltModifier | Qt::MetaModifier | Qt::KeypadModifier);
|
|
}
|
|
|
|
bool isInFolder(const QString &folderpath, const QString &filepath)
|
|
{
|
|
QDir folder(folderpath);
|
|
QFileInfo fileInfo(filepath);
|
|
return fileInfo.absoluteFilePath().startsWith(includeTrailingPathDelimiter(folder.absolutePath()));
|
|
}
|
|
|
|
void createFile(const QString &fileName)
|
|
{
|
|
stringToFile("",fileName);
|
|
}
|