I am trying to write a GUI wrapper for one of my command line tools written in Python.
It was suggested to me that I should use Qt.
Below is my project's .cpp file:
#include "v_1.h"
#include "ui_v_1.h"
#include<QtCore/QFile>
#include<QtCore/QTextStream>
#include <QProcess>
#include <QPushButton>
v_1::v_1(QWidget *parent) :
QMainWindow(parent),ui(new Ui::v_1)
{
ui->setupUi(this);
}
v_1::~v_1()
{
delete ui;
}
void v_1::on_pushButton_clicked()
{
QProcess p;
p.start("python script -arg1 arg1");
p.waitForFinished(-1);
QString p_stdout = p.readAllStandardOutput();
ui->lineEdit->setText(p_stdout);
}
Below is my project's header file:
#ifndef V_1_H
#define V_1_H
#include <QMainWindow>
namespace Ui {
class v_1;
}
class v_1 : public QMainWindow
{
Q_OBJECT
public:
explicit v_1(QWidget *parent = 0);
~v_1();
private slots:
void on_pushButton_clicked();
private:
Ui::v_1 *ui;
};
#endif // V_1_H
The UI file is just a Push Button and a LineEdit widget.
I allocated the Push Button a slot when it is clicked. The on_pushButton_clicked()
method works fine when I call some utilities like ls
or ps
, and it pipes the output of those commands to the LineEdit widget, but when I try calling a Python script, it does not show me anything on the LineEdit widget.
Any help would be greatly appreciated.
Have you tried the following:
void v_1::on_pushButton_clicked()
{
QProcess p;
QStringList params;
params << "script.py -arg1 arg1";
p.start("python", params);
p.waitForFinished(-1);
QString p_stdout = p.readAll();
ui->lineEdit->setText(p_stdout);
}