diff options
author | Maia Kozheva <sikon@ubuntu.com> | 2009-11-20 18:22:19 +0600 |
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committer | Maia Kozheva <sikon@ubuntu.com> | 2009-11-20 18:22:19 +0600 |
commit | 263b32f108c15cd1c55a8f4eb4704fac6553f1ac (patch) | |
tree | 1c49e7848aa2d3d64a9d9b96b8852cb1884da2f7 /src/myprocess.cpp |
Imported Upstream version 0.6.8
Diffstat (limited to 'src/myprocess.cpp')
-rw-r--r-- | src/myprocess.cpp | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/src/myprocess.cpp b/src/myprocess.cpp new file mode 100644 index 0000000..bc1f24b --- /dev/null +++ b/src/myprocess.cpp @@ -0,0 +1,201 @@ +/* smplayer, GUI front-end for mplayer. + Copyright (C) 2006-2009 Ricardo Villalba <rvm@escomposlinux.org> + + 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 2 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, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include "myprocess.h" + +#ifdef Q_OS_WIN + +#if QT_VERSION < 0x040300 +#define USE_TEMP_FILE 1 +#else +#define USE_TEMP_FILE 0 +#endif + +#else +#define USE_TEMP_FILE 0 +#endif + + +MyProcess::MyProcess(QObject * parent) : QProcess(parent) +{ + clearArguments(); + setProcessChannelMode( QProcess::MergedChannels ); + +#if USE_TEMP_FILE + temp_file.open(); // Create temporary file + QString filename = temp_file.fileName(); + setStandardOutputFile( filename ); + qDebug("MyProcess::MyProcess: temporary file: %s", filename.toUtf8().data()); + temp_file.close(); + + //connect(&temp_file, SIGNAL(readyRead()), this, SLOT(readTmpFile()) ); + connect(&timer, SIGNAL(timeout()), this, SLOT(readTmpFile()) ); +#else + connect(this, SIGNAL(readyReadStandardOutput()), this, SLOT(readStdOut()) ); +#endif + + connect(this, SIGNAL(finished(int, QProcess::ExitStatus)), + this, SLOT(procFinished()) ); + + // Test splitArguments + //QStringList l = MyProcess::splitArguments("-opt 1 hello \"56 67\" wssx -ios"); +} + +void MyProcess::clearArguments() { + program = ""; + arg.clear(); +} + +bool MyProcess::isRunning() { + return (state() == QProcess::Running); +} + +void MyProcess::addArgument(const QString & a) { + if (program.isEmpty()) { + program = a; + } else { + arg.append(a); + } +} + +QStringList MyProcess::arguments() { + QStringList l = arg; + l.prepend(program); + return l; +} + +void MyProcess::start() { + remaining_output.clear(); + + QProcess::start(program, arg); + +#if USE_TEMP_FILE + //bool r = temp_file.open(QIODevice::ReadOnly); + bool r = temp_file.open(); + timer.start(50); + qDebug("MyProcess::start: r: %d", r); +#endif +} + +void MyProcess::readStdOut() { + genericRead( readAllStandardOutput() ); +} + + +void MyProcess::readTmpFile() { + genericRead( temp_file.readAll() ); +} + +void MyProcess::genericRead(QByteArray buffer) { + QByteArray ba = remaining_output + buffer; + int start = 0; + int from_pos = 0; + int pos = canReadLine(ba, from_pos); + + //qDebug("MyProcess::read: pos: %d", pos); + while ( pos > -1 ) { + // Readline + //QByteArray line = ba.left(pos); + QByteArray line = ba.mid(start, pos-start); + //ba = ba.mid(pos+1); + from_pos = pos + 1; +#ifdef Q_OS_WIN + if ((from_pos < ba.size()) && (ba.at(from_pos)=='\n')) from_pos++; +#endif + start = from_pos; + + emit lineAvailable(line); + + pos = canReadLine(ba, from_pos); + } + + remaining_output = ba.mid(from_pos); +} + +int MyProcess::canReadLine(const QByteArray & ba, int from) { + int pos1 = ba.indexOf('\n', from); + int pos2 = ba.indexOf('\r', from); + + //qDebug("MyProcess::canReadLine: pos2: %d", pos2); + + if ( (pos1 == -1) && (pos2 == -1) ) return -1; + + int pos = pos1; + if ( (pos1 != -1) && (pos2 != -1) ) { + /* + if (pos2 == (pos1+1)) pos = pos2; // \r\n + else + */ + if (pos1 < pos2) pos = pos1; else pos = pos2; + } else { + if (pos1 == -1) pos = pos2; + else + if (pos2 == -1) pos = pos1; + } + + return pos; +} + +/*! +Do some clean up, and be sure that all output has been read. +*/ +void MyProcess::procFinished() { + qDebug("MyProcess::procFinished"); + +#if !USE_TEMP_FILE + qDebug("MyProcess::procFinished: Bytes available: %ld", bytesAvailable()); + if ( bytesAvailable() > 0 ) readStdOut(); +#else + timer.stop(); + + qDebug("MyProcess::procFinished: Bytes available: %ld", temp_file.bytesAvailable()); + if ( temp_file.bytesAvailable() > 0 ) readTmpFile(); + qDebug("MyProcess::procFinished: Bytes available: %ld", temp_file.bytesAvailable()); + + temp_file.close(); +#endif +} + +QStringList MyProcess::splitArguments(const QString & args) { + qDebug("MyProcess::splitArguments: '%s'", args.toUtf8().constData()); + + QStringList l; + + bool opened_quote = false; + int init_pos = 0; + for (int n = 0; n < args.length(); n++) { + if ((args[n] == QChar(' ')) && (!opened_quote)) { + l.append(args.mid(init_pos, n - init_pos)); + init_pos = n+1; + } + else + if (args[n] == QChar('\"')) opened_quote = !opened_quote; + + if (n == args.length()-1) { + l.append(args.mid(init_pos, (n - init_pos)+1)); + } + } + + for (int n = 0; n < l.count(); n++) { + qDebug("MyProcess::splitArguments: arg: %d '%s'", n, l[n].toUtf8().constData()); + } + + return l; +} + +#include "moc_myprocess.cpp" |