Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder1.news.weretis.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.datemas.de!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed3.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'subject:not': 0.03; 'url:launchpad': 0.05; 'ignored': 0.07; 'filename': 0.09; 'filenames': 0.09; 'filenames:': 0.09; 'guys!': 0.09; 'label,': 0.09; 'skip:# 30': 0.09; 'thread': 0.14; '16.': 0.16; 'comments:': 0.16; 'dirnames,': 0.16; 'dirpath,': 0.16; 'from:addr:swing.be': 0.16; 'from:addr:vincent.vandevyvre': 0.16; 'from:name:vincent vande vyvre': 0.16; 'message-id:@swing.be': 0.16; 'oqapy': 0.16; 'paqager': 0.16; 'received:mobistar.be': 0.16; 'str)': 0.16; 'there?': 0.16; 'url:oqapy': 0.16; 'url:paqager': 0.16; 'url:qarte': 0.16; 'v.v.': 0.16; 'seems': 0.21; 'header:User- Agent:1': 0.23; 'looks': 0.24; 'this:': 0.26; 'updating': 0.26; 'defined': 0.27; 'header:In-Reply-To:1': 0.27; 'code': 0.31; "skip:' 10": 0.31; 'prints': 0.31; 'skip:q 20': 0.31; 'subject:some': 0.31; 'class': 0.32; 'created': 0.35; 'skip:s 30': 0.35; 'something': 0.35; 'etc': 0.35; 'but': 0.35; 'next': 0.36; 'shows': 0.36; 'hi,': 0.36; 'window': 0.38; 'to:addr:python-list': 0.38; 'skip:- 10': 0.38; 'to:addr:python.org': 0.39; 'here': 0.66; 'between': 0.67; '11.': 0.74; 'slot,': 0.84 Date: Sun, 04 Aug 2013 20:20:56 +0200 From: Vincent Vande Vyvre User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130623 Thunderbird/17.0.7 MIME-Version: 1.0 To: python-list@python.org Subject: Re: In pyqt, some signals seems not work well References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 77 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1375640467 news.xs4all.nl 15958 [2001:888:2000:d::a6]:36420 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:51934 Le 04/08/2013 18:06, Jacknaruto a écrit : > Hi, Guys! > > I created a thread class based QThread, and defined some signals to > update UI through main thread. > > the UI used a stackedWidget,someone page named 'progressPage' have a > progressBar and a Label, the next page named 'resultsPage' shows > results(some Labels). > > When the window showed progressPage, my code that updates progressBar > was well, but the updating resultsPage's labels signals seems ignored > by main thread.(I guess, because I added some prints in the slot, it > wasn't printed) > > the code like this: > > 1. class worker(QtCore.QThread): > 2. sig_jump_finish_page = QtCore.pyqtSignal() > 3. sig_set_label_text = QtCore.pyqtSignal(str, str) > 4. sig_set_progress_value = QtCore.pyqtSignal(int) > 5. > > 6. for dirpath, dirnames, filenames in os.walk(self.root): > 7. for filename in filenames: > 8. self.sig_set_label_text.emit('current', self.current()) # work well > 9. # so something >10. > > 11. #self.dialog.set_found(str(self.found())) # work well > 12. #self.dialog.set_all(str(self.total())) # work well > 13. self.sig_set_label_text.emit('found', str(self.found())) # :( > 14. self.sig_set_label_text.emit('all', str(self.total())) # :( >15. > > 16. self.sig_jump_finish_page.emit() > > > So I have to update UI directly in the thread(comments Line 11-12 > shows), it looks work well. > > I found the difference between line 8 and line 13-14 is line 8 > manipulates current page -progressPage, line 13-14 manipulates next > page -resultsPage. > > Is some wrongs in there? > > > > > Have a look at my comments: class worker(QtCore.QThread): sig_jump_finish_page = QtCore.pyqtSignal() sig_set_label_text = QtCore.pyqtSignal(str, str) sig_set_progress_value = QtCore.pyqtSignal(int) for dirpath, dirnames, filenames in os.walk(self.root): # What is 'self' here ? for filename in filenames: self.sig_set_label_text.emit('current', self.current()) # where is 'current' ? # so something #self.dialog.set_found(str(self.found())) # What is self, and dialog, and found ? #self.dialog.set_all(str(self.total())) # ... self.sig_set_label_text.emit('found', str(self.found())) # again ? self.sig_set_label_text.emit('all', str(self.total())) # etc self.sig_jump_finish_page.emit() -- Vincent V.V. Oqapy . Qarte . PaQager