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#include "mathassistant.h"
#include "smallUsefulFunctions.h"
#include <QMutex>
MathAssistant *MathAssistant::m_Instance = 0;
MathAssistant::MathAssistant() :
QObject()
{
connect(&process, SIGNAL(error(QProcess::ProcessError)), this, SLOT(processError(QProcess::ProcessError)));
connect(&process, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(processFinished(int, QProcess::ExitStatus)));
}
void MathAssistant::exec()
{
if (process.state() == QProcess::Running) return;
// return value of TexTablet is always zero, so we have to decide on the clipboard contents, if TexTablet was aborted
lastClipboardText = QApplication::clipboard()->text();
QApplication::clipboard()->clear();
//TODO This is the default installation path of TexTablet. Make it configurabe.
QString texTablet = QCoreApplication::applicationDirPath() + "/TexTablet/TeXTablet.exe";
if (!QFileInfo(texTablet).exists()) {
QString msg = QString(tr("TexTablet not found."));
QMessageBox msgBox;
msgBox.setWindowTitle(tr("Math Assistant"));
msgBox.setTextFormat(Qt::RichText);
msgBox.setText(msg);
msgBox.setStandardButtons(QMessageBox::Ok);
msgBox.exec();
return;
}
process.setWorkingDirectory(QFileInfo(texTablet).absolutePath());
process.start("\"" + texTablet + "\"");
}
void MathAssistant::processError(QProcess::ProcessError err)
{
switch (err) {
case QProcess::FailedToStart:
QMessageBox::information(0, "FailedToStart", "FailedToStart");
break;
case QProcess::Crashed:
QMessageBox::information(0, "Crashed", "Crashed");
break;
case QProcess::Timedout:
QMessageBox::information(0, "Timedout", "Timedout");
break;
case QProcess::WriteError:
QMessageBox::information(0, "WriteError", "WriteError");
break;
case QProcess::ReadError:
QMessageBox::information(0, "ReadError", "ReadError");
break;
case QProcess::UnknownError:
QMessageBox::information(0, "UnknownError", "UnknownError");
break;
default:
QMessageBox::information(0, "default", "default");
break;
}
}
void MathAssistant::processFinished(int exitCode, QProcess::ExitStatus exitStatus)
{
Q_UNUSED(exitCode);
if (exitStatus != QProcess::NormalExit) {
txsCritical(tr("TexTablet crashed."));
}
// exit code is always zero for TexTablet
QString text = QApplication::clipboard()->text();
if (text.startsWith("$"))
emit formulaReceived(text);
QApplication::clipboard()->setText(lastClipboardText);
}
MathAssistant *MathAssistant::instance()
{
static QMutex mutex;
mutex.lock();
if (!m_Instance)
m_Instance = new MathAssistant();
mutex.unlock();
return m_Instance;
}
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