void signalHandler(int signal) {
struct job *j;
if (!job_pid) {
cleanJobs(&jobs);
j = lastJob(jobs);
if (j) {
job_pid = j->pid;
}
}
//força a impressão do buffer de saída
fflush(stdout);
switch (signal) {
//ctrl+c
case SIGINT:
if (job_pid) {
terminateJob(job_pid, &jobs);
printf("\n[%d]\tterminado\t%s\n", job_pid, "");
job_pid = 0;
} else {
handler_action = 1;
}
break;
//ctrl+z
case SIGTSTP:
if (job_pid) {
pauseJob(job_pid, &jobs);
printf("\n[%d]\tpausado\t%s\n", job_pid, "");
} else {
handler_action = 2;
}
break;
//child process stop/terminate
case SIGCHLD:
if (job_pid) {
if (handler_action == 1) {
terminateJob(job_pid, &jobs);
printf("\n[%d]\tterminado\t%s\n", job_pid, "");
job_pid = 0;
} else if (handler_action == 2) {
pauseJob(job_pid, &jobs);
printf("\n[%d]\tpausado\t%s\n", job_pid, "");
}
handler_action = 0;
}
break;
//default:
//printf("SIGNAL: %d\n", signal);
}
//printf("job_pid: %d\n", job_pid);
//remove os 'jobs' terminados da lista
cleanJobs(&jobs);
printf("\n");
}
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
quitDialog(0), saveChanges(false),
newJobFileName(""), newJobDestinationDirectory("")
{
m_has_error_happend = false;
QMetaObject::invokeMethod(this, "loadSettings", Qt::QueuedConnection);
setWindowIcon(QIcon(":/ui/icons/motocool.jpg"));
// Initiallize headers
QStringList headers;
headers << tr("Name") << tr("Downloaded/Total") << tr("Progress") << tr("Speed")
<< tr("Status") << tr("Remaining time");
// Main job list
jobView = new JobView(this);
jobView->setHeaderLabels(headers);
jobView->setSelectionBehavior(QAbstractItemView::SelectRows);
jobView->setAlternatingRowColors(true);
jobView->setRootIsDecorated(false);
setCentralWidget(jobView);
// Set header resize modes and initial section sizes
QFontMetrics fm = fontMetrics();
QHeaderView *header = jobView->header();
header->resizeSection(0, fm.width("typical-name-length-for-a-download-task"));
header->resizeSection(1, fm.width(headers.at(1) + "100MB/999MB"));
header->resizeSection(2, fm.width(headers.at(2) + "100%"));
header->resizeSection(3, qMax(fm.width(headers.at(3) + " "), fm.width(" 1023.0 KB/s")));
header->resizeSection(4, qMax(fm.width(headers.at(4) + " "), fm.width(tr("Downloading ") + " ")));
header->resizeSection(5, qMax(fm.width(headers.at(5) + " "), fm.width(tr("--:--") + " ")));
// Create common actions
QAction *newJobAction = new QAction(QIcon(":/ui/icons/bottom.png"), tr("Add &new job"), this);
pauseJobAction = new QAction(QIcon(":/ui/icons/player_pause.png"), tr("&Pause job"), this);
removeJobAction = new QAction(QIcon(":/ui/icons/player_stop.png"), tr("&Remove job"), this);
openDirAction = new QAction(QIcon(":/ui/icons/folder.png"), tr("Open file &directory"), this);
// File menu
QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
fileMenu->addAction(newJobAction);
fileMenu->addAction(pauseJobAction);
fileMenu->addAction(removeJobAction);
fileMenu->addAction(openDirAction);
fileMenu->addSeparator();
fileMenu->addAction(QIcon(":/ui/icons/exit.png"), tr("E&xit"), this, SLOT(close()));
// Help Menu
QMenu *helpMenu = menuBar()->addMenu(tr("&Help"));
helpMenu->addAction(tr("&About"), this, SLOT(about()));
// Top toolbar
QToolBar *topBar = new QToolBar(tr("Tools"));
addToolBar(Qt::TopToolBarArea, topBar);
topBar->setMovable(false);
topBar->addAction(newJobAction);
topBar->addAction(pauseJobAction);
topBar->addAction(removeJobAction);
topBar->addAction(openDirAction);
pauseJobAction->setEnabled(false);
removeJobAction->setEnabled(false);
openDirAction->setEnabled(false);
// Set up connections
connect(jobView, SIGNAL(itemSelectionChanged()),
this, SLOT(setActionsEnabled()));
connect(newJobAction, SIGNAL(triggered()),
this, SLOT(addJob()));
connect(pauseJobAction, SIGNAL(triggered()),
this, SLOT(pauseJob()));
connect(removeJobAction, SIGNAL(triggered()),
this, SLOT(removeJob()));
connect(openDirAction, SIGNAL(triggered()),
this, SLOT(openDir()));
}
