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misc.cpp
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misc.cpp
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#include "misc.h"
#include <QDebug>
#include <QPainter>
#include <QProcess>
#include <QWidget>
#include <vector>
#include "joinpath.h"
QStringList misc::splitLines(QByteArray const &ba, std::function<QString(char const *ptr, size_t len)> tos)
{
QStringList list;
char const *begin = ba.data();
char const *end = begin + ba.size();
char const *ptr = begin;
char const *left = ptr;
while (1) {
ushort c = 0;
if (ptr < end) {
c = *ptr;
}
if (c == '\n' || c == '\r' || c == 0) {
list.push_back(tos(left, ptr - left));
if (c == 0) break;
if (c == '\n') {
ptr++;
} else if (c == '\r') {
ptr++;
if (ptr < end && *ptr == '\n') {
ptr++;
}
}
left = ptr;
} else {
ptr++;
}
}
return list;
}
QStringList misc::splitLines(const QString &text)
{
QStringList list;
ushort const *begin = text.utf16();
ushort const *end = begin + text.size();
ushort const *ptr = begin;
ushort const *left = ptr;
while (1) {
ushort c = 0;
if (ptr < end) {
c = *ptr;
}
if (c == '\n' || c == '\r' || c == 0) {
list.push_back(QString::fromUtf16(left, ptr - left));
if (c == 0) break;
if (c == '\n') {
ptr++;
} else if (c == '\r') {
ptr++;
if (ptr < end && *ptr == '\n') {
ptr++;
}
}
left = ptr;
} else {
ptr++;
}
}
return list;
}
void misc::splitLines(char const *begin, char const *end, std::vector<std::string> *out)
{
char const *ptr = begin;
char const *left = ptr;
while (1) {
char c = 0;
if (ptr < end) {
c = *ptr;
}
if (c == '\n' || c == '\r' || c == 0) {
out->push_back(std::string(left, ptr - left));
if (c == 0) break;
if (c == '\n') {
ptr++;
} else if (c == '\r') {
ptr++;
if (ptr < end && *ptr == '\n') {
ptr++;
}
}
left = ptr;
} else {
ptr++;
}
}
}
void misc::splitLines(std::string const &text, std::vector<std::string> *out)
{
char const *begin = text.c_str();
char const *end = begin + text.size();
splitLines(begin, end, out);
}
QStringList misc::splitWords(const QString &text)
{
QStringList list;
ushort const *begin = text.utf16();
ushort const *end = begin + text.size();
ushort const *ptr = begin;
ushort const *left = ptr;
while (1) {
ushort c = 0;
if (ptr < end) {
c = *ptr;
}
if (QChar::isSpace(c) || c == 0) {
if (left < ptr) {
list.push_back(QString::fromUtf16(left, ptr - left));
}
if (c == 0) break;
ptr++;
left = ptr;
} else {
ptr++;
}
}
return list;
}
QString misc::getFileName(QString const &path)
{
int i = path.lastIndexOf('/');
int j = path.lastIndexOf('\\');
if (i < j) i = j;
if (i >= 0) {
return path.mid(i + 1);
}
return path;
}
QString misc::makeDateTimeString(QDateTime const &dt)
{
if (dt.isValid()) {
char tmp[100];
sprintf(tmp, "%04u-%02u-%02u %02u:%02u:%02u"
, dt.date().year()
, dt.date().month()
, dt.date().day()
, dt.time().hour()
, dt.time().minute()
, dt.time().second()
);
return tmp;
}
return QString();
}
bool misc::starts_with(const std::string &str, const std::string &with)
{
return strncmp(str.c_str(), with.c_str(), with.size()) == 0;
}
std::string misc::mid(const std::string &str, int start, int length)
{
int size = (int)str.size();
if (length < 0) length = size;
length += start;
if (start < 0) start = 0;
if (length < 0) length = 0;
if (start > size) start = size;
if (length > size) length = size;
length -= start;
return std::string(str.c_str() + start, length);
}
#ifdef _WIN32
QString misc::normalizePathSeparator(QString const &str)
{
if (!str.isEmpty()) {
ushort const *s = str.utf16();
size_t n = str.size();
std::vector<ushort> v;
v.reserve(n);
for (size_t i = 0; i < n; i++) {
ushort c = s[i];
if (c == '/') {
c = '\\';
}
v.push_back(c);
}
ushort const *p = &v[0];
return QString::fromUtf16(p, n);
}
return QString();
}
#else
QString misc::normalizePathSeparator(QString const &s)
{
return s;
}
#endif
QString misc::joinWithSlash(QString const &left, QString const &right)
{
if (!left.isEmpty() && !right.isEmpty()) {
return joinpath(left, right);
}
return !left.isEmpty() ? left : right;
}
int misc::runCommand(QString const &cmd, QByteArray *out)
{
out->clear();
QProcess proc;
proc.start(cmd);
proc.waitForStarted();
proc.closeWriteChannel();
proc.setReadChannel(QProcess::StandardOutput);
while (1) {
QProcess::ProcessState s = proc.state();
if (proc.waitForReadyRead(1)) {
while (1) {
char tmp[1024];
qint64 len = proc.read(tmp, sizeof(tmp));
if (len < 1) break;
out->append(tmp, len);
}
} else if (s == QProcess::NotRunning) {
break;
}
}
return proc.exitCode();
}
int misc::runCommand(QString const &cmd, QByteArray const *in, QByteArray *out)
{
out->clear();
QProcess proc;
proc.start(cmd);
proc.waitForStarted();
proc.write(*in);
proc.closeWriteChannel();
proc.setReadChannel(QProcess::StandardOutput);
while (1) {
QProcess::ProcessState s = proc.state();
if (proc.waitForReadyRead(1)) {
while (1) {
char tmp[1024];
qint64 len = proc.read(tmp, sizeof(tmp));
if (len < 1) break;
out->append(tmp, len);
}
} else if (s == QProcess::NotRunning) {
break;
}
}
return proc.exitCode();
}
void misc::setFixedSize(QWidget *w)
{
Qt::WindowFlags flags = w->windowFlags();
flags &= ~Qt::WindowContextHelpButtonHint;
flags |= Qt::MSWindowsFixedSizeDialogHint;
w->setWindowFlags(flags);
w->setFixedSize(w->size());
}
void misc::drawFrame(QPainter *pr, int x, int y, int w, int h, QColor color_topleft, QColor color_bottomright)
{
if (w < 3 || h < 3) {
if (w > 0 && h > 0) {
pr->fillRect(x, y, w, h, color_topleft);
}
} else {
if (!color_topleft.isValid()) color_topleft = Qt::black;
if (!color_bottomright.isValid()) color_bottomright = color_topleft;
pr->fillRect(x, y, w - 1, 1, color_topleft);
pr->fillRect(x, y + 1, 1, h -1, color_topleft);
pr->fillRect(x + w - 1, y, 1, h -1, color_bottomright);
pr->fillRect(x + 1, y + h - 1, w - 1, 1, color_bottomright);
}
}
void misc::dump(uint8_t const *ptr, size_t len)
{
if (ptr && len > 0) {
size_t pos = 0;
while (pos < len) {
char tmp[100];
char *dst = tmp;
sprintf(dst, "%08X ", pos);
dst += 9;
for (int i = 0; i < 16; i++) {
if (pos + i < len) {
sprintf(dst, "%02X ", ptr[pos + i] & 0xff);
} else {
sprintf(dst, " ", ptr[pos + i] & 0xff);
}
dst += 3;
}
for (int i = 0; i < 16; i++) {
int c = ' ';
if (pos < len) {
c = ptr[pos] & 0xff;
if (!isprint(c)) {
c = '.';
}
pos++;
}
*dst = c;
dst++;
}
*dst = 0;
qDebug() << tmp;
}
}
}
void misc::dump(const QByteArray *in)
{
size_t len = 0;
uint8_t const *ptr = nullptr;
if (in) {
len = in->size();
if (len > 0) {
ptr = (uint8_t const *)in->data();
}
}
dump(ptr, len);
}
bool misc::isImageFile(const QString &mimetype)
{
if (mimetype == "image/jpeg") return true;
if (mimetype == "image/png") return true;
if (mimetype == "image/bmp") return true;
if (mimetype == "image/x-ms-bmp") return true;
return false;
}

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