xterm_widget.py

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Software License Agreement (BSD License)
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# Copyright (c) 2012, Dorian Scholz
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import os
 
from python_qt_binding.QtCore import QProcess, QTimer, Signal
from python_qt_binding.QtGui import QX11EmbedContainer
 
 
class XTermWidget(QX11EmbedContainer):
    xterm_cmd = '/usr/bin/xterm'
    close_signal = Signal()
 
    def __init__(self, parent=None, script_path=None):
        # possible use os to do better justice to script path??
        if script_path:
            xterm_cmd += " -e $SHELL -c 'source %s; $SHELL'" % os.path.abspath(script_path)
        super(XTermWidget, self).__init__(parent)
        self.setObjectName('XTermWidget')
        self._process = QProcess(self)
        self._process.finished.connect(self.close_signal)
        # let the widget finish init before embedding xterm
        QTimer.singleShot(100, self._embed_xterm)
 
    def _embed_xterm(self):
        args = ['-into', str(self.winId())]
        self._process.start(self.xterm_cmd, args)
        if self._process.error() == QProcess.FailedToStart:
            print("failed to execute '%s'" % self.xterm_cmd)
 
    def shutdown(self):
        self._process.kill()
        self._process.waitForFinished()
 
 
def is_xterm_available():
    return os.path.isfile(XTermWidget.xterm_cmd)
 
if __name__ == '__main__':
    from PyQt4.QtGui import QApplication
    app = QApplication([])
    xt = XTermWidget()
    app.exec_()