Il 10/10/2013 06:55, Woody Wu ha scritto: > Hi, > > I am about to write a test runner with GTK+. It basically can list a lot > of external test programs (non-GTK+ pure Linux apps) in a treeview and > let user select one of them to run. While an external program is > running, I want to get all its outputs (to stdout/stderr) and keep > updating in a textview. > > Since I am a Linux programmer, so I know how to fork a new process and > pipe into an external program. But I don't know in GTK+, what's the > right method to keep fetching the information from the pipe and showing > them in my GUI widgets. On the other hand, while an external program is > running, I don't want user feel that the my program is frozing and user > should be able to kill the running external program by clicking a 'stop' > button on the GUI. > > For this kind of task, what GTK+ technology I should go to grab? Thanks > in advance! > Hope you like pyhton :) -- Hofstadter's Law: "It always takes longer than you expect, even when you take into account Hofstadter's Law."
Attachment:
test_pygtk.ui
Description: application/designer
# -*- coding: UTF-8 -*-
import gobject
import gtk
import subprocess
class load_ng:
def __init__(self):
###
# Initialize the data
###
self.error = 0
self.base = '0xB0'
self.com = ["ls","-l"]
self.log = open('test_pygtk.log', 'w')
###
# Initialize the gui
###
self.builder = gtk.Builder()
self.builder.add_from_file("test_pygtk.ui")
self.window = self.builder.get_object("window_main")
#
text = self.builder.get_object("txt_console")
self.txt_buf = text.get_buffer()
self.ok_tag = self.txt_buf.create_tag("ok", foreground="lightgreen", weight=700)
self.ko_tag = self.txt_buf.create_tag("ko", foreground="red", weight=700)
self.err_tag = self.txt_buf.create_tag("err", foreground="red")
# connect signals
self.builder.connect_signals(self)
def on_btn_check_clicked(self, widget):
# resetto il flag di errore
self.error = 0
self.test_launch()
itr = self.txt_buf.get_end_iter()
if self.error != 0:
self.txt_buf.insert_with_tags(itr, "Unexpected error; please see \nlog file for futher details.\n", self.err_tag)
else:
self.txt_buf.insert(itr, "###\n")
def on_btn_quit_clicked(self, widget):
self.log.close()
gtk.main_quit()
def on_window_main_destroy(self, widget, data=None):
self.log.close()
gtk.main_quit()
def test_launch(self):
# if you want, you can change command options here:
self.com[1] = "-la"
itr = self.txt_buf.get_end_iter()
self.txt_buf.insert(itr, "Launching command...\t\t\t\t\t\t")
while gtk.events_pending():
gtk.main_iteration_do(False)
risposta = subprocess.Popen(self.com, stdout=subprocess.PIPE).communicate()[0]
lines = risposta.split('\n')
stato = False
for line in lines:
# maybe a better test can be designed ;)
if '.' not in line:
stato = True
if stato:
self.txt_buf.insert_with_tags(itr, "[OK]\n", self.ok_tag)
self.txt_buf.insert(itr, risposta)
else:
self.txt_buf.insert_with_tags(itr, "[Failed]\n", self.ko_tag)
self.error = 1
self.log.writelines(risposta)
def main(self):
self.window.show()
gtk.main()
pass
if __name__=='__main__':
app = load_ng()
app.window.show()
gtk.main()
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