Python Qt.QCoreApplication类代码示例

    def update_cache(self, parent=None, timeout=10, force=False,
            suppress_progress=False):
        if self.lock.acquire(False):
            try:
                update_thread = CacheUpdateThread(self.config, self.seralize_books, timeout)
                if not suppress_progress:
                    progress = CacheProgressDialog(parent)
                    progress.set_message(_('Updating MobileRead book cache...'))

                    update_thread.total_changed.connect(progress.set_total)
                    update_thread.update_progress.connect(progress.set_progress)
                    update_thread.update_details.connect(progress.set_details)
                    progress.rejected.connect(update_thread.abort)

                    progress.open()
                    update_thread.start()
                    while update_thread.is_alive() and not progress.canceled:
                        QCoreApplication.processEvents()

                    if progress.isVisible():
                        progress.accept()
                    return not progress.canceled
                else:
                    update_thread.start()
            finally:
                self.lock.release()

 def message(self, msg, ms=2000, sub=False):
     if sub:
         if self._prev_msg:
             msg = ": ".join((self._prev_msg, msg))
     else:
         self._prev_msg = msg
     self.statusBar().showMessage(msg, ms)
     QCoreApplication.processEvents(QEventLoop.ExcludeUserInputEvents)

    def check_library(self):
        from calibre.gui2.dialogs.check_library import CheckLibraryDialog, DBCheck, DBCheckNew

        self.gui.library_view.save_state()
        m = self.gui.library_view.model()
        m.stop_metadata_backup()
        db = m.db
        db.prefs.disable_setting = True

        if hasattr(db, "new_api"):
            d = DBCheckNew(self.gui, db)
        else:
            d = DBCheck(self.gui, db)
        d.start()
        try:
            d.conn.close()
        except:
            pass
        d.break_cycles()
        self.gui.library_moved(db.library_path, call_close=not d.closed_orig_conn)
        if d.rejected:
            return
        if d.error is None:
            if not question_dialog(
                self.gui,
                _("Success"),
                _(
                    "Found no errors in your calibre library database."
                    " Do you want calibre to check if the files in your "
                    " library match the information in the database?"
                ),
            ):
                return
        else:
            return error_dialog(
                self.gui,
                _("Failed"),
                _("Database integrity check failed, click Show details" " for details."),
                show=True,
                det_msg=d.error[1],
            )

        self.gui.status_bar.show_message(_("Starting library scan, this may take a while"))
        try:
            QCoreApplication.processEvents()
            d = CheckLibraryDialog(self.gui, m.db)

            if not d.do_exec():
                info_dialog(
                    self.gui,
                    _("No problems found"),
                    _("The files in your library match the information " "in the database."),
                    show=True,
                )
        finally:
            self.gui.status_bar.clear_message()

    def __init__(self, parent, view, row, link_delegate):
        QDialog.__init__(self, parent)
        Ui_BookInfo.__init__(self)
        self.setupUi(self)
        self.gui = parent
        self.cover_pixmap = None
        self.details.sizeHint = self.details_size_hint
        self.details.page().setLinkDelegationPolicy(self.details.page().DelegateAllLinks)
        self.details.linkClicked.connect(self.link_clicked)
        self.css = P('templates/book_details.css', data=True).decode('utf-8')
        self.link_delegate = link_delegate
        self.details.setAttribute(Qt.WA_OpaquePaintEvent, False)
        palette = self.details.palette()
        self.details.setAcceptDrops(False)
        palette.setBrush(QPalette.Base, Qt.transparent)
        self.details.page().setPalette(palette)


        self.view = view
        self.current_row = None
        self.fit_cover.setChecked(dynamic.get('book_info_dialog_fit_cover',
            True))
        self.refresh(row)
        self.connect(self.view.selectionModel(), SIGNAL('currentChanged(QModelIndex,QModelIndex)'), self.slave)
        self.connect(self.next_button, SIGNAL('clicked()'), self.next)
        self.connect(self.previous_button, SIGNAL('clicked()'), self.previous)
        self.fit_cover.stateChanged.connect(self.toggle_cover_fit)
        self.cover.resizeEvent = self.cover_view_resized
        self.cover.cover_changed.connect(self.cover_changed)

        desktop = QCoreApplication.instance().desktop()
        screen_height = desktop.availableGeometry().height() - 100
        self.resize(self.size().width(), screen_height)

def init_qt(args):
    from calibre.gui2.ui import Main
    parser = option_parser()
    opts, args = parser.parse_args(args)
    if opts.with_library is not None:
        if not os.path.exists(opts.with_library):
            os.makedirs(opts.with_library)
        if os.path.isdir(opts.with_library):
            prefs.set('library_path', os.path.abspath(opts.with_library))
            prints('Using library at', prefs['library_path'])
    QCoreApplication.setOrganizationName(ORG_NAME)
    QCoreApplication.setApplicationName(APP_UID)
    override = 'calibre-gui' if islinux else None
    app = Application(args, override_program_name=override)
    actions = tuple(Main.create_application_menubar())
    app.setWindowIcon(QIcon(I('lt.png')))
    return app, opts, args, actions

def init_qt(args):
    parser = option_parser()
    opts, args = parser.parse_args(args)
    find_portable_library()
    if opts.with_library is not None:
        libpath = os.path.expanduser(opts.with_library)
        if not os.path.exists(libpath):
            os.makedirs(libpath)
        if os.path.isdir(libpath):
            prefs.set('library_path', os.path.abspath(libpath))
            prints('Using library at', prefs['library_path'])
    QCoreApplication.setOrganizationName(ORG_NAME)
    QCoreApplication.setApplicationName(APP_UID)
    override = 'calibre-gui' if islinux else None
    app = Application(args, override_program_name=override)
    app.file_event_hook = EventAccumulator()
    app.setWindowIcon(QIcon(I('lt.png')))
    return app, opts, args

    def config_widget(cls):
        from PyQt4.Qt import QCoreApplication
        from PyQt4.Qt import QScrollArea

        cw = super(KOBOTOUCHEXTENDED, cls).config_widget()
        qsa = QScrollArea()
        qsa.setWidgetResizable(True)
        qsa.setWidget(cw)
        qsa.validate = cw.validate
        desktop_geom = QCoreApplication.instance().desktop().availableGeometry()
        if desktop_geom.height() < 800:
            qsa.setBaseSize(qsa.size().width(), desktop_geom.height() - 100)
        return qsa

 def __init__(self, *args, **kwargs):
     QDialog.__init__(self, *args)
     self.setupUi(self)
     desktop = QCoreApplication.instance().desktop()
     geom = desktop.availableGeometry(self)
     nh, nw = geom.height()-25, geom.width()-10
     if nh < 0:
         nh = max(800, self.height())
     if nw < 0:
         nw = max(600, self.height())
     nh = min(self.height(), nh)
     nw = min(self.width(), nw)
     self.resize(nw, nh)

    def __init__(self, *args):
        SurfacePlot.__init__(self, *args)
        # fonts
        family = QCoreApplication.instance().font().family()
        if 'Verdana' in QFontDatabase().families():
            family = 'Verdana'
        family = 'Courier'
            
        self.coordinates().setLabelFont(family, 14)
        self.coordinates().setNumberFont(family, 12)
            
        self.setTitle('A Simple SurfacePlot Demonstration');
        self.setTitleFont(family, 16, QFont.Bold)
        self.setBackgroundColor(RGBA(1.0, 1.0, 0.6))

        rosenbrock = Rosenbrock(self)

        rosenbrock.setMesh(41, 31)
        rosenbrock.setDomain(-1.73, 1.5, -1.5, 1.5)
        rosenbrock.setMinZ(-10)
        
        rosenbrock.create()

        self.setRotation(30, 0, 15)
        self.setScale(1, 1, 1)
        self.setShift(0.15, 0, 0)
        self.setZoom(0.9)

        axes = self.coordinates().axes # alias
        for axis in axes:
            axis.setMajors(7)
            axis.setMinors(4)
            
        axes[X1].setLabelString('x-axis')
        axes[Y1].setLabelString('y-axis')
        axes[Z1].setLabelString('z-axis')

        self.setCoordinateStyle(BOX);

        self.updateData();
        self.updateGL();

    def __init__(self, parent, updateinterval):
        SurfacePlot.__init__(self, parent)
        # fonts
        family = QCoreApplication.instance().font().family()
        if 'Verdana' in QFontDatabase().families():
            family = 'Verdana'
        family = 'Courier'

        self.setTitleFont(family, 16, QFont.Bold)
            
        self.setRotation(30, 0, 15)
        self.setShift(0.1, 0, 0)
        self.setZoom(0.8)

        self.coordinates().setNumberFont(family, 8)
        
        axes = self.coordinates().axes # alias
        for axis in axes:
            axis.setMajors(7)
            axis.setMinors(4)

        axes[X1].setLabelString("x")
        axes[Y1].setLabelString("y")
        axes[Z1].setLabelString("z")
        axes[X2].setLabelString("x")
        axes[Y2].setLabelString("y")
        axes[Z2].setLabelString("z")
        axes[X3].setLabelString("x")
        axes[Y3].setLabelString("y")
        axes[Z3].setLabelString("z")
        axes[X4].setLabelString("x")
        axes[Y4].setLabelString("y")
        axes[Z4].setLabelString("z")

        timer = QTimer(self)
        self.connect(timer, SIGNAL('timeout()'), self.rotate)
        timer.start(updateinterval)

    def __init__(self, gui, view, row):
        QDialog.__init__(self, gui, flags=Qt.Window)
        Ui_Quickview.__init__(self)
        self.setupUi(self)
        self.isClosed = False

        self.books_table_column_widths = None
        try:
            self.books_table_column_widths = \
                        gprefs.get('quickview_dialog_books_table_widths', None)
            geom = gprefs.get('quickview_dialog_geometry', bytearray(''))
            self.restoreGeometry(QByteArray(geom))
        except:
            pass

        # Remove the help button from the window title bar
        icon = self.windowIcon()
        self.setWindowFlags(self.windowFlags()&(~Qt.WindowContextHelpButtonHint))
        self.setWindowIcon(icon)

        self.db = view.model().db
        self.view = view
        self.gui = gui
        self.is_closed = False
        self.current_book_id = None
        self.current_key = None
        self.last_search = None
        self.current_column = None
        self.current_item = None
        self.no_valid_items = False

        self.items.setSelectionMode(QAbstractItemView.SingleSelection)
        self.items.currentTextChanged.connect(self.item_selected)

        # Set up the books table columns
        self.books_table.setSelectionBehavior(QAbstractItemView.SelectRows)
        self.books_table.setSelectionMode(QAbstractItemView.SingleSelection)
        self.books_table.setColumnCount(3)
        t = QTableWidgetItem(_('Title'))
        self.books_table.setHorizontalHeaderItem(0, t)
        t = QTableWidgetItem(_('Authors'))
        self.books_table.setHorizontalHeaderItem(1, t)
        t = QTableWidgetItem(_('Series'))
        self.books_table.setHorizontalHeaderItem(2, t)
        self.books_table_header_height = self.books_table.height()
        self.books_table.cellDoubleClicked.connect(self.book_doubleclicked)
        self.books_table.sortByColumn(0, Qt.AscendingOrder)

        # get the standard table row height. Do this here because calling
        # resizeRowsToContents can word wrap long cell contents, creating
        # double-high rows
        self.books_table.setRowCount(1)
        self.books_table.setItem(0, 0, TableItem('A', ''))
        self.books_table.resizeRowsToContents()
        self.books_table_row_height = self.books_table.rowHeight(0)
        self.books_table.setRowCount(0)

        # Add the data
        self.refresh(row)

        self.view.clicked.connect(self.slave)
        QCoreApplication.instance().aboutToQuit.connect(self.save_state)
        self.search_button.clicked.connect(self.do_search)
        view.model().new_bookdisplay_data.connect(self.book_was_changed)

def available_width():
    desktop       = QCoreApplication.instance().desktop()
    return desktop.availableGeometry().width()

def available_height():
    desktop  = QCoreApplication.instance().desktop()
    return desktop.availableGeometry().height()

def available_heights():
    desktop  = QCoreApplication.instance().desktop()
    return map(lambda x: x.height(), map(desktop.availableGeometry, range(desktop.numScreens())))

 def initialization_failed(self):
     print 'Catastrophic failure initializing GUI, bailing out...'
     QCoreApplication.exit(1)
     raise SystemExit(1)