On Mon, Sep 16, 2013 at 12:18 PM, Patrick Barrett <patr...@mkii.org> wrote:
> On 09/16/2013 10:58 AM, Ryan Hanson wrote: > > On Mon, Sep 16, 2013 at 10:19 AM, Patrick Barrett <patr...@mkii.org>wrote: > >> I'm trying to write a small app the generates a few QWebView windows and >> then rotates the page that is displayed on a set interval. >> >> Code: https://gist.github.com/Azdle/6556433 >> >> I've run into an issue that I don't understand. When I try to generate a >> `PageWindow` (Class based on QWebView) from within my `MainWindow` class >> nothing appears. (See the code in 29-30) However, when I copy and paste >> that code outside of any classes the window appears as it should. (See the >> commented code in 56-57) >> >> Even when I can make the QWebView window appear, the QTimer object that I >> create in the `PageWindow` never seems to timeout. I think this is being >> caused by the same issue as the first problem. >> >> I'm not sure if the issues are me doing the python wrong or just not >> understanding something about how the Qt-specfic aspects work. I have this >> application already working in C++, but want to get it working in Python. >> >> Thanks >> --Patrick >> >> > Here you go Patrick, you want to move your timer into your main class > and then call your new page function on the instance of PageWindow that you > create inside that class. > > import sys > from PyQt4.QtCore import * > from PyQt4.QtGui import * > from PyQt4.QtWebKit import * > > pages = [ > "https://portals.exosite.com/views/3819798770/3579834479";, > "https://portals.exosite.com/views/2562112089/4128069106";, > "https://portals.exosite.com/views/2060811893/1760385000";, > "https://exosite:akyqhkd...@logs.exosite.com:444"; > ] > > class MainWindow(QMainWindow): > > def __init__(self, *args): > QMainWindow.__init__(self) > > self.quitButton = QPushButton("Quit") > vbox = QVBoxLayout() > vbox.addWidget(self.quitButton) > centralWidget = QWidget() > centralWidget.setLayout(vbox) > self.setCentralWidget(centralWidget) > > self.quitButton.clicked.connect(self.close) > > self.pageView = PageWindow() > self.pageView.show() > > self.pageTimer = QTimer() > self.pageTimer.timeout.connect(self.pageView.nextPage) > self.pageTimer.start(5000) > > def closeEvent(self, event): > self.pageTimer.stop() > self.pageView.close() > event.accept() > > class PageWindow(QWebView): > def __init__(self): > QWebView.__init__(self) > > self.pageIndex = 0 > self.nextPage() > self.setGeometry(QApplication.desktop().screenGeometry(1)) > self.showFullScreen() > > def nextPage(self): > print("Loading:"+pages[self.pageIndex]) > self.load(QUrl(pages[self.pageIndex])) > self.pageIndex = self.pageIndex + 1 > if self.pageIndex >= len(pages): > self.pageIndex = 0 > > def main(args): > app = QApplication(args) > win = MainWindow() > win.show() > app.connect(app, SIGNAL("lastWindowClosed()"), > app, SLOT("quit()")) > app.exec_() > > if __name__=="__main__": > main(sys.argv) > > > Thanks Ryan. I ended up moving the timer object back into the `PageWindow` > class. > > Added a new revision to the old Gist: > https://gist.github.com/Azdle/6556433 > > I see from your code that my issue was that I was putting object in local > scope instead of putting them in the object (using var instead of self.var, > my terminology is probably wrong) so the objects were getting garbage > collected right after getting created. > > Thanks for your help! > > --Patrick > Glad you got it working
_______________________________________________ PyQt mailing list PyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
