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author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2013-01-27 01:02:02 -0600 |
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committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2013-01-27 01:02:02 -0600 |
commit | de7e5867a65e0a46f1388e3e50bc7eeddd1aecbf (patch) | |
tree | dbb3152c372f8620f9290137d461f3d9f9eba1cb /tdeioslave/thumbnail/djvucreator.cpp | |
parent | 936d3cec490c13f2c5f7dd14f5e364fddaa6da71 (diff) | |
download | tdebase-de7e5867a65e0a46f1388e3e50bc7eeddd1aecbf.tar.gz tdebase-de7e5867a65e0a46f1388e3e50bc7eeddd1aecbf.zip |
Rename a number of libraries and executables to avoid conflicts with KDE4
Diffstat (limited to 'tdeioslave/thumbnail/djvucreator.cpp')
-rw-r--r-- | tdeioslave/thumbnail/djvucreator.cpp | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/tdeioslave/thumbnail/djvucreator.cpp b/tdeioslave/thumbnail/djvucreator.cpp new file mode 100644 index 000000000..20a32fb26 --- /dev/null +++ b/tdeioslave/thumbnail/djvucreator.cpp @@ -0,0 +1,139 @@ +/* This file is part of the KDE libraries + Copyright (C) 2001 Malte Starostik <malte@kde.org> + Copyright (C) 2001 Leon Bottou <leon@bottou.org> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + + +#include <assert.h> +#include <stdlib.h> +#include <unistd.h> +#include <signal.h> +#ifdef HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif +#include <sys/time.h> +#include <sys/wait.h> +#include <fcntl.h> +#include <errno.h> + +#include <tqfile.h> +#include <tqimage.h> + +#include <kdemacros.h> + +#include "djvucreator.h" + + + +extern "C" +{ + KDE_EXPORT ThumbCreator *new_creator() + { + return new DjVuCreator; + } +} + +bool DjVuCreator::create(const TQString &path, int width, int height, TQImage &img) +{ + int output[2]; + TQByteArray data(1024); + bool ok = false; + + if (pipe(output) == -1) + return false; + + const char* argv[8]; + TQCString sizearg, fnamearg; + sizearg.sprintf("%dx%d", width, height); + fnamearg = TQFile::encodeName( path ); + argv[0] = "ddjvu"; + argv[1] = "-page"; + argv[2] = "1"; + argv[3] = "-size"; + argv[4] = sizearg.data(); + argv[5] = fnamearg.data(); + argv[6] = 0; + + pid_t pid = fork(); + if (pid == 0) + { + close(output[0]); + dup2(output[1], STDOUT_FILENO); + execvp(argv[0], const_cast<char *const *>(argv)); + exit(1); + } + else if (pid >= 0) + { + close(output[1]); + int offset = 0; + while (!ok) { + fd_set fds; + FD_ZERO(&fds); + FD_SET(output[0], &fds); + struct timeval tv; + tv.tv_sec = 20; + tv.tv_usec = 0; + if (select(output[0] + 1, &fds, 0, 0, &tv) <= 0) { + if (errno == EINTR || errno == EAGAIN) + continue; + break; // error or timeout + } + if (FD_ISSET(output[0], &fds)) { + int count = read(output[0], data.data() + offset, 1024); + if (count == -1) + break; + if (count) // prepare for next block + { + offset += count; + data.resize(offset + 1024); + } + else // got all data + { + data.resize(offset); + ok = true; + } + } + } + if (!ok) + kill(pid, SIGTERM); + int status = 0; + if (waitpid(pid, &status, 0) != pid || (status != 0 && status != 256) ) + ok = false; + } + else + { + close(output[1]); + } + + close(output[0]); + int l = img.loadFromData( data ); + return ok && l; +} + + +ThumbCreator::Flags DjVuCreator::flags() const +{ + return static_cast<Flags>(DrawFrame); +} + + |