Python Qt.QSplitter类代码示例

    def __init__(self, name, label, icon, initial_show=True,
            initial_side_size=120, connect_button=True,
            orientation=Qt.Horizontal, side_index=0, parent=None, shortcut=None):
        QSplitter.__init__(self, parent)
        self.resize_timer = QTimer(self)
        self.resize_timer.setSingleShot(True)
        self.desired_side_size = initial_side_size
        self.desired_show = initial_show
        self.resize_timer.setInterval(5)
        self.resize_timer.timeout.connect(self.do_resize)
        self.setOrientation(orientation)
        self.side_index = side_index
        self._name = name
        self.label = label
        self.initial_side_size = initial_side_size
        self.initial_show = initial_show
        self.splitterMoved.connect(self.splitter_moved, type=Qt.QueuedConnection)
        self.button = LayoutButton(icon, label, self, shortcut=shortcut)
        if connect_button:
            self.button.clicked.connect(self.double_clicked)

        if shortcut is not None:
            self.action_toggle = QAction(QIcon(icon), _('Toggle') + ' ' + label,
                    self)
            self.action_toggle.triggered.connect(self.toggle_triggered)
            if parent is not None:
                parent.addAction(self.action_toggle)
                if hasattr(parent, 'keyboard'):
                    parent.keyboard.register_shortcut('splitter %s %s'%(name,
                        label), unicode(self.action_toggle.text()),
                        default_keys=(shortcut,), action=self.action_toggle)
                else:
                    self.action_toggle.setShortcut(shortcut)
            else:
                self.action_toggle.setShortcut(shortcut)

def make():
    demo = QSplitter(Qt.Horizontal)

    plot1 = Plot(demo, 30)
    plot1.setFloorStyle(FLOORISO)
    plot1.setCoordinateStyle(BOX)
    saddle = Saddle(plot1)
    saddle.create()
    plot1.setTitle("Autoswitching axes")
    plot1.setBackgroundColor(RGBA(1.0, 1.0, 0.6))
    plot1.makeCurrent()
    plot1.updateData()
    plot1.updateGL()
    
    plot2 = Plot(demo, 80)
    plot2.setZoom(0.8)
    hat = Hat(plot2)
    hat.create()
    plot2.setPlotStyle(HIDDENLINE)
    plot2.setFloorStyle(FLOORDATA)
    plot2.setCoordinateStyle(FRAME)
    plot2.setBackgroundColor(RGBA(1.0, 1.0, 0.6))
    plot2.makeCurrent()
    plot2.updateData()
    plot2.updateGL()

    demo.resize(800, 400)
    demo.show()
                
    return demo

    def __init__(self, parent=None):
        QSplitter.__init__(self, parent)
        self.setChildrenCollapsible(False)

        self.items = i = QListWidget(self)
        i.setContextMenuPolicy(Qt.CustomContextMenu)
        i.customContextMenuRequested.connect(self.context_menu)
        self.items.setSpacing(3)
        self.items.itemDoubleClicked.connect(self.current_item_activated)
        self.items.currentItemChanged.connect(self.current_item_changed)
        self.items.setSelectionMode(self.items.NoSelection)
        self.delegate = Delegate(self.items)
        self.items.setItemDelegate(self.delegate)
        self.addWidget(i)
        self.help = h = QTextBrowser(self)
        h.anchorClicked.connect(self.link_clicked)
        h.setOpenLinks(False)
        self.addWidget(h)
        self.clear_help(_('Check has not been run'))
        self.setStretchFactor(0, 100)
        self.setStretchFactor(1, 50)

        state = tprefs.get('check-book-splitter-state', None)
        if state is not None:
            self.restoreState(state)

 def do_resize(self, *args):
     orig = self.desired_side_size
     QSplitter.resizeEvent(self, self._resize_ev)
     if orig > 20 and self.desired_show:
         c = 0
         while abs(self.side_index_size - orig) > 10 and c < 5:
             self.apply_state(self.get_state(), save_desired=False)
             c += 1

    def __init__(self, parent=None, show_open_in_editor=False):
        QSplitter.__init__(self, parent)
        self._failed_img = None

        self.left, self.right = TextBrowser(parent=self), TextBrowser(right=True, parent=self, show_open_in_editor=show_open_in_editor)
        self.addWidget(self.left), self.addWidget(self.right)
        self.split_words = re.compile(r"\w+|\W", re.UNICODE)
        self.clear()

    def __init__(self, assy, parent):
        """
        Constructor for the part window.

        @param assy: The assembly (part)
        @type  assy: Assembly

        @param parent: The parent widget.
        @type  parent: U{B{QMainWindow}
                       <http://doc.trolltech.com/4/qmainwindow.html>}
        """
        QWidget.__init__(self, parent)
        self.parent = parent
        self.assy = assy
            # note: to support MDI, self.assy would probably need to be a
            # different assembly for each PartWindow.
            # [bruce 080216 comment]
        self.setWindowIcon(geticon("ui/border/Part.png"))
        self.updateWindowTitle()

        # Used in expanding or collapsing the Model Tree/ PM area
        self._previous_pwLeftAreaWidth = PM_DEFAULT_WIDTH

        # The main layout for the part window is a VBoxLayout <pwVBoxLayout>.
        self.pwVBoxLayout = QVBoxLayout(self)
        pwVBoxLayout = self.pwVBoxLayout
        pwVBoxLayout.setMargin(0)
        pwVBoxLayout.setSpacing(0)

        # ################################################################
        # <pwSplitter> is the horizontal splitter b/w the
        # pwProjectTabWidget and the glpane.
        self.pwSplitter = QSplitter(Qt.Horizontal)
        pwSplitter = self.pwSplitter
        pwSplitter.setObjectName("pwSplitter")
        pwSplitter.setHandleWidth(3) # 3 pixels wide.
        pwVBoxLayout.addWidget(pwSplitter)

        # ##################################################################
        # <pwLeftArea> is the container holding the pwProjectTabWidget.
        # Note: Making pwLeftArea (and pwRightArea and pwBottomArea) QFrame
        # widgets has the benefit of making it easy to draw a border around
        # each area. One purpose of this would be to help developers understand
        # (visually) how the part window is laid out. I intend to add a debug
        # pref to draw part window area borders and add "What's This" text to
        # them. Mark 2008-01-05.
        self.pwLeftArea = QFrame()
        pwLeftArea = self.pwLeftArea
        pwLeftArea.setObjectName("pwLeftArea")
        pwLeftArea.setMinimumWidth(PM_MINIMUM_WIDTH)
        pwLeftArea.setMaximumWidth(PM_MAXIMUM_WIDTH)
        pwLeftArea.setSizePolicy(
            QSizePolicy(QSizePolicy.Policy(QSizePolicy.Fixed),
                        QSizePolicy.Policy(QSizePolicy.Expanding)))

        # Setting the frame style like this is nice since it clearly
        # defines the splitter at the top-left corner.
        pwLeftArea.setFrameStyle( QFrame.Panel | QFrame.Sunken )

        # This layout will contain splitter (above) and the pwBottomArea.
        leftChannelVBoxLayout = QVBoxLayout(pwLeftArea)
        leftChannelVBoxLayout.setMargin(0)
        leftChannelVBoxLayout.setSpacing(0)

        pwSplitter.addWidget(pwLeftArea)

        # Makes it so pwLeftArea is not collapsible.
        pwSplitter.setCollapsible (0, False)

        # ##################################################################
        # <pwProjectTabWidget> is a QTabWidget that contains the MT and PM
        # widgets. It lives in the "left area" of the part window.
        self.pwProjectTabWidget = _pwProjectTabWidget()
           # _pwProjectTabWidget subclasses QTabWidget
           # Note [bruce 070829]: to fix bug 2522 I need to intercept
           # self.pwProjectTabWidget.removeTab, so I made it a subclass of
           # QTabWidget. It needs to know the GLPane, but that's not created
           # yet, so we set it later using KLUGE_setGLPane (below).
           # Note: No parent supplied. Could this be the source of the
           # minor vsplitter resizing problem I was trying to resolve a few
           # months ago?  Try supplying a parent later. Mark 2008-01-01
        self.pwProjectTabWidget.setObjectName("pwProjectTabWidget")
        self.pwProjectTabWidget.setCurrentIndex(0)
        self.pwProjectTabWidget.setAutoFillBackground(True)

        # Create the model tree "tab" widget. It will contain the MT GUI widget.
        # Set the tab icon, too.
        self.modelTreeTab = QWidget()
        self.modelTreeTab.setObjectName("modelTreeTab")
        self.pwProjectTabWidget.addTab(
            self.modelTreeTab,
            geticon("ui/modeltree/Model_Tree.png"),
            "")

        modelTreeTabLayout = QVBoxLayout(self.modelTreeTab)
        modelTreeTabLayout.setMargin(0)
        modelTreeTabLayout.setSpacing(0)

        # Create the model tree (GUI) and add it to the tab layout.
        self.modelTree = modelTree(self.modelTreeTab, parent)
#.........这里部分代码省略.........

class Ui_PartWindow(QWidget):
    """
    The Ui_PartWindow class provides a Part Window UI object composed of three
    primary areas:

    - The "left area" contains the Project TabWidget which contains
    the Model Tree and Property Manager (tabs). Other tabs (widgets)
    can be introduced when needed.

    - The "right area" contains the 3D Graphics Area (i.e. glpane) displaying
    the current part.

    - The "bottom area" lives below the left and right areas, spanning
    the full width of the part window. It can be used whenever a landscape
    layout is needed (i.e. the Sequence Editor). Typically, this area is
    not used.

    A "part window" splitter lives between the left and right areas that
    allow the user to resize the shared area occupied by them. There is no
    splitter between the top and bottom areas.

    This class supports and is limited to a B{Single Document Interface (SDI)}.
    In time, NE1 will migrate to and support a Multiple Document Interface (MDI)
    that will allow multiple project documents (i.e. parts, assemblies,
    simulations, text files, graphs, tables, etc. documents) to be available
    within the common workspace of the NE1 main window.

    @see: U{B{NE1 Main Window Framework}
    <http://www.nanoengineer-1.net/mediawiki/index.php?title=NE1_Main_Window_Framework>}
    """
    widgets = [] # For debugging purposes.

    def __init__(self, assy, parent):
        """
        Constructor for the part window.

        @param assy: The assembly (part)
        @type  assy: Assembly

        @param parent: The parent widget.
        @type  parent: U{B{QMainWindow}
                       <http://doc.trolltech.com/4/qmainwindow.html>}
        """
        QWidget.__init__(self, parent)
        self.parent = parent
        self.assy = assy
            # note: to support MDI, self.assy would probably need to be a
            # different assembly for each PartWindow.
            # [bruce 080216 comment]
        self.setWindowIcon(geticon("ui/border/Part.png"))
        self.updateWindowTitle()

        # Used in expanding or collapsing the Model Tree/ PM area
        self._previous_pwLeftAreaWidth = PM_DEFAULT_WIDTH

        # The main layout for the part window is a VBoxLayout <pwVBoxLayout>.
        self.pwVBoxLayout = QVBoxLayout(self)
        pwVBoxLayout = self.pwVBoxLayout
        pwVBoxLayout.setMargin(0)
        pwVBoxLayout.setSpacing(0)

        # ################################################################
        # <pwSplitter> is the horizontal splitter b/w the
        # pwProjectTabWidget and the glpane.
        self.pwSplitter = QSplitter(Qt.Horizontal)
        pwSplitter = self.pwSplitter
        pwSplitter.setObjectName("pwSplitter")
        pwSplitter.setHandleWidth(3) # 3 pixels wide.
        pwVBoxLayout.addWidget(pwSplitter)

        # ##################################################################
        # <pwLeftArea> is the container holding the pwProjectTabWidget.
        # Note: Making pwLeftArea (and pwRightArea and pwBottomArea) QFrame
        # widgets has the benefit of making it easy to draw a border around
        # each area. One purpose of this would be to help developers understand
        # (visually) how the part window is laid out. I intend to add a debug
        # pref to draw part window area borders and add "What's This" text to
        # them. Mark 2008-01-05.
        self.pwLeftArea = QFrame()
        pwLeftArea = self.pwLeftArea
        pwLeftArea.setObjectName("pwLeftArea")
        pwLeftArea.setMinimumWidth(PM_MINIMUM_WIDTH)
        pwLeftArea.setMaximumWidth(PM_MAXIMUM_WIDTH)
        pwLeftArea.setSizePolicy(
            QSizePolicy(QSizePolicy.Policy(QSizePolicy.Fixed),
                        QSizePolicy.Policy(QSizePolicy.Expanding)))

        # Setting the frame style like this is nice since it clearly
        # defines the splitter at the top-left corner.
        pwLeftArea.setFrameStyle( QFrame.Panel | QFrame.Sunken )

        # This layout will contain splitter (above) and the pwBottomArea.
        leftChannelVBoxLayout = QVBoxLayout(pwLeftArea)
        leftChannelVBoxLayout.setMargin(0)
        leftChannelVBoxLayout.setSpacing(0)

        pwSplitter.addWidget(pwLeftArea)

        # Makes it so pwLeftArea is not collapsible.
        pwSplitter.setCollapsible (0, False)
#.........这里部分代码省略.........

    def __init__(self, parent, db):
        QDialog.__init__(self, parent)
        self.db = db

        self.setWindowTitle(_('Check Library -- Problems Found'))
        self.setWindowIcon(QIcon(I('debug.png')))

        self._tl = QHBoxLayout()
        self.setLayout(self._tl)
        self.splitter = QSplitter(self)
        self.left = QWidget(self)
        self.splitter.addWidget(self.left)
        self.helpw = QTextEdit(self)
        self.splitter.addWidget(self.helpw)
        self._tl.addWidget(self.splitter)
        self._layout = QVBoxLayout()
        self.left.setLayout(self._layout)
        self.helpw.setReadOnly(True)
        self.helpw.setText(_('''\
        <h1>Help</h1>

        <p>calibre stores the list of your books and their metadata in a
        database. The actual book files and covers are stored as normal
        files in the calibre library folder. The database contains a list of the files
        and covers belonging to each book entry. This tool checks that the
        actual files in the library folder on your computer match the
        information in the database.</p>

        <p>The result of each type of check is shown to the left. The various
        checks are:
        </p>
        <ul>
        <li><b>Invalid titles</b>: These are files and folders appearing
        in the library where books titles should, but that do not have the
        correct form to be a book title.</li>
        <li><b>Extra titles</b>: These are extra files in your calibre
        library that appear to be correctly-formed titles, but have no corresponding
        entries in the database</li>
        <li><b>Invalid authors</b>: These are files appearing
        in the library where only author folders should be.</li>
        <li><b>Extra authors</b>: These are folders in the
        calibre library that appear to be authors but that do not have entries
        in the database</li>
        <li><b>Missing book formats</b>: These are book formats that are in
        the database but have no corresponding format file in the book's folder.
        <li><b>Extra book formats</b>: These are book format files found in
        the book's folder but not in the database.
        <li><b>Unknown files in books</b>: These are extra files in the
        folder of each book that do not correspond to a known format or cover
        file.</li>
        <li><b>Missing cover files</b>: These represent books that are marked
        in the database as having covers but the actual cover files are
        missing.</li>
        <li><b>Cover files not in database</b>: These are books that have
        cover files but are marked as not having covers in the database.</li>
        <li><b>Folder raising exception</b>: These represent folders in the
        calibre library that could not be processed/understood by this
        tool.</li>
        </ul>

        <p>There are two kinds of automatic fixes possible: <i>Delete
        marked</i> and <i>Fix marked</i>.</p>
        <p><i>Delete marked</i> is used to remove extra files/folders/covers that
        have no entries in the database. Check the box next to the item you want
        to delete. Use with caution.</p>

        <p><i>Fix marked</i> is applicable only to covers and missing formats
        (the three lines marked 'fixable'). In the case of missing cover files,
        checking the fixable box and pushing this button will tell calibre that
        there is no cover for all of the books listed. Use this option if you
        are not going to restore the covers from a backup. In the case of extra
        cover files, checking the fixable box and pushing this button will tell
        calibre that the cover files it found are correct for all the books
        listed. Use this when you are not going to delete the file(s). In the
        case of missing formats, checking the fixable box and pushing this
        button will tell calibre that the formats are really gone. Use this if
        you are not going to restore the formats from a backup.</p>

        '''))

        self.log = QTreeWidget(self)
        self.log.itemChanged.connect(self.item_changed)
        self.log.itemExpanded.connect(self.item_expanded_or_collapsed)
        self.log.itemCollapsed.connect(self.item_expanded_or_collapsed)
        self._layout.addWidget(self.log)

        self.check_button = QPushButton(_('&Run the check again'))
        self.check_button.setDefault(False)
        self.check_button.clicked.connect(self.run_the_check)
        self.copy_button = QPushButton(_('Copy &to clipboard'))
        self.copy_button.setDefault(False)
        self.copy_button.clicked.connect(self.copy_to_clipboard)
        self.ok_button = QPushButton(_('&Done'))
        self.ok_button.setDefault(True)
        self.ok_button.clicked.connect(self.accept)
        self.delete_button = QPushButton(_('Delete &marked'))
        self.delete_button.setToolTip(_('Delete marked files (checked subitems)'))
        self.delete_button.setDefault(False)
        self.delete_button.clicked.connect(self.delete_marked)
        self.fix_button = QPushButton(_('&Fix marked'))
#.........这里部分代码省略.........

class CheckLibraryDialog(QDialog):

    def __init__(self, parent, db):
        QDialog.__init__(self, parent)
        self.db = db

        self.setWindowTitle(_('Check Library -- Problems Found'))
        self.setWindowIcon(QIcon(I('debug.png')))

        self._tl = QHBoxLayout()
        self.setLayout(self._tl)
        self.splitter = QSplitter(self)
        self.left = QWidget(self)
        self.splitter.addWidget(self.left)
        self.helpw = QTextEdit(self)
        self.splitter.addWidget(self.helpw)
        self._tl.addWidget(self.splitter)
        self._layout = QVBoxLayout()
        self.left.setLayout(self._layout)
        self.helpw.setReadOnly(True)
        self.helpw.setText(_('''\
        <h1>Help</h1>

        <p>calibre stores the list of your books and their metadata in a
        database. The actual book files and covers are stored as normal
        files in the calibre library folder. The database contains a list of the files
        and covers belonging to each book entry. This tool checks that the
        actual files in the library folder on your computer match the
        information in the database.</p>

        <p>The result of each type of check is shown to the left. The various
        checks are:
        </p>
        <ul>
        <li><b>Invalid titles</b>: These are files and folders appearing
        in the library where books titles should, but that do not have the
        correct form to be a book title.</li>
        <li><b>Extra titles</b>: These are extra files in your calibre
        library that appear to be correctly-formed titles, but have no corresponding
        entries in the database</li>
        <li><b>Invalid authors</b>: These are files appearing
        in the library where only author folders should be.</li>
        <li><b>Extra authors</b>: These are folders in the
        calibre library that appear to be authors but that do not have entries
        in the database</li>
        <li><b>Missing book formats</b>: These are book formats that are in
        the database but have no corresponding format file in the book's folder.
        <li><b>Extra book formats</b>: These are book format files found in
        the book's folder but not in the database.
        <li><b>Unknown files in books</b>: These are extra files in the
        folder of each book that do not correspond to a known format or cover
        file.</li>
        <li><b>Missing cover files</b>: These represent books that are marked
        in the database as having covers but the actual cover files are
        missing.</li>
        <li><b>Cover files not in database</b>: These are books that have
        cover files but are marked as not having covers in the database.</li>
        <li><b>Folder raising exception</b>: These represent folders in the
        calibre library that could not be processed/understood by this
        tool.</li>
        </ul>

        <p>There are two kinds of automatic fixes possible: <i>Delete
        marked</i> and <i>Fix marked</i>.</p>
        <p><i>Delete marked</i> is used to remove extra files/folders/covers that
        have no entries in the database. Check the box next to the item you want
        to delete. Use with caution.</p>

        <p><i>Fix marked</i> is applicable only to covers and missing formats
        (the three lines marked 'fixable'). In the case of missing cover files,
        checking the fixable box and pushing this button will tell calibre that
        there is no cover for all of the books listed. Use this option if you
        are not going to restore the covers from a backup. In the case of extra
        cover files, checking the fixable box and pushing this button will tell
        calibre that the cover files it found are correct for all the books
        listed. Use this when you are not going to delete the file(s). In the
        case of missing formats, checking the fixable box and pushing this
        button will tell calibre that the formats are really gone. Use this if
        you are not going to restore the formats from a backup.</p>

        '''))

        self.log = QTreeWidget(self)
        self.log.itemChanged.connect(self.item_changed)
        self.log.itemExpanded.connect(self.item_expanded_or_collapsed)
        self.log.itemCollapsed.connect(self.item_expanded_or_collapsed)
        self._layout.addWidget(self.log)

        self.check_button = QPushButton(_('&Run the check again'))
        self.check_button.setDefault(False)
        self.check_button.clicked.connect(self.run_the_check)
        self.copy_button = QPushButton(_('Copy &to clipboard'))
        self.copy_button.setDefault(False)
        self.copy_button.clicked.connect(self.copy_to_clipboard)
        self.ok_button = QPushButton(_('&Done'))
        self.ok_button.setDefault(True)
        self.ok_button.clicked.connect(self.accept)
        self.delete_button = QPushButton(_('Delete &marked'))
        self.delete_button.setToolTip(_('Delete marked files (checked subitems)'))
        self.delete_button.setDefault(False)
#.........这里部分代码省略.........

    def __init__(self, parent=None):
        QSplitter.__init__(self, parent)

        self.left, self.right = TextBrowser(self), TextBrowser(self)
        self.addWidget(self.left), self.addWidget(self.right)

#.........这里部分代码省略.........
                tl.addWidget(button, row, 3, span, 1)
                if icon is not None:
                    button.setIcon(QIcon(I(icon)))
            if tab_to is not None:
                if button is not None:
                    sto(widget, button)
                    sto(button, tab_to)
                else:
                    sto(widget, tab_to)

        tl.addWidget(self.swap_title_author_button, 0, 0, 2, 1)
        tl.addWidget(self.manage_authors_button, 2, 0, 1, 1)
        tl.addWidget(self.paste_isbn_button, 12, 0, 1, 1)
        tl.addWidget(self.tags_editor_button, 6, 0, 1, 1)

        create_row(0, self.title, self.title_sort,
                   button=self.deduce_title_sort_button, span=2,
                   icon='auto_author_sort.png')
        create_row(1, self.title_sort, self.authors)
        create_row(2, self.authors, self.author_sort,
                   button=self.deduce_author_sort_button,
                   span=2, icon='auto_author_sort.png')
        create_row(3, self.author_sort, self.series)
        create_row(4, self.series, self.series_index,
                   button=self.clear_series_button, icon='trash.png')
        create_row(5, self.series_index, self.tags)
        create_row(6, self.tags, self.rating, button=self.clear_tags_button)
        create_row(7, self.rating, self.pubdate, button=self.clear_ratings_button)
        create_row(8, self.pubdate, self.publisher,
                   button=self.pubdate.clear_button, icon='trash.png')
        create_row(9, self.publisher, self.languages)
        create_row(10, self.languages, self.timestamp)
        create_row(11, self.timestamp, self.identifiers,
                   button=self.timestamp.clear_button, icon='trash.png')
        create_row(12, self.identifiers, self.comments,
                   button=self.clear_identifiers_button, icon='trash.png')
        sto(self.clear_identifiers_button, self.swap_title_author_button)
        sto(self.swap_title_author_button, self.manage_authors_button)
        sto(self.manage_authors_button, self.tags_editor_button)
        sto(self.tags_editor_button, self.paste_isbn_button)
        tl.addItem(QSpacerItem(1, 1, QSizePolicy.Fixed, QSizePolicy.Expanding),
                   13, 1, 1 ,1)

        w = getattr(self, 'custom_metadata_widgets_parent', None)
        if w is not None:
            gb = QGroupBox(_('C&ustom metadata'), tab0)
            gbl = QVBoxLayout()
            gb.setLayout(gbl)
            sr = QScrollArea(tab0)
            sr.setWidgetResizable(True)
            sr.setFrameStyle(QFrame.NoFrame)
            sr.setWidget(w)
            gbl.addWidget(sr)
            self.tabs[0].l.addWidget(gb, 0, 1, 1, 1)
            sto(self.identifiers, gb)

        w = QGroupBox(_('&Comments'), tab0)
        sp = QSizePolicy()
        sp.setVerticalStretch(10)
        sp.setHorizontalPolicy(QSizePolicy.Expanding)
        sp.setVerticalPolicy(QSizePolicy.Expanding)
        w.setSizePolicy(sp)
        l = QHBoxLayout()
        w.setLayout(l)
        l.addWidget(self.comments)
        tab0.l.addWidget(w, 1, 0, 1, 2)

        # Tab 1
        tab1 = self.tabs[1]

        wsp = QWidget(tab1)
        wgl = QVBoxLayout()
        wsp.setLayout(wgl)

        # right-hand side of splitter
        gb = QGroupBox(_('Change cover'), tab1)
        l = QGridLayout()
        gb.setLayout(l)
        for i, b in enumerate(self.cover.buttons[:3]):
            l.addWidget(b, 0, i, 1, 1)
            sto(b, self.cover.buttons[i+1])
        hl = QHBoxLayout()
        for b in self.cover.buttons[3:]:
            hl.addWidget(b)
        sto(self.cover.buttons[-2], self.cover.buttons[-1])
        l.addLayout(hl, 1, 0, 1, 3)
        wgl.addWidget(gb)
        wgl.addItem(QSpacerItem(10, 10, QSizePolicy.Expanding,
            QSizePolicy.Expanding))
        wgl.addItem(QSpacerItem(10, 10, QSizePolicy.Expanding,
            QSizePolicy.Expanding))
        wgl.addWidget(self.formats_manager)

        self.splitter = QSplitter(Qt.Horizontal, tab1)
        tab1.l.addWidget(self.splitter)
        self.splitter.addWidget(self.cover)
        self.splitter.addWidget(wsp)

        self.formats_manager.formats.setMaximumWidth(10000)
        self.formats_manager.formats.setIconSize(QSize(64, 64))

 def resizeEvent(self, ev):
     self.frame_resized.emit(ev)
     return QSplitter.resizeEvent(self, ev)

    def __init__(self, parent, view, row, link_delegate):
        QDialog.__init__(self, parent)
        self.normal_brush = QBrush(Qt.white)
        self.marked_brush = QBrush(Qt.lightGray)
        self.marked = None
        self.gui = parent
        self.splitter = QSplitter(self)
        self._l = l = QVBoxLayout(self)
        self.setLayout(l)
        l.addWidget(self.splitter)

        self.cover = CoverView(self)
        self.cover.resizeEvent = self.cover_view_resized
        self.cover.cover_changed.connect(self.cover_changed)
        self.cover_pixmap = None
        self.cover.sizeHint = self.details_size_hint
        self.splitter.addWidget(self.cover)

        self.details = QWebView(self)
        self.details.sizeHint = self.details_size_hint
        self.details.page().setLinkDelegationPolicy(self.details.page().DelegateAllLinks)
        self.details.linkClicked.connect(self.link_clicked)
        s = self.details.page().settings()
        s.setAttribute(s.JavascriptEnabled, False)
        self.css = css()
        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.c = QWidget(self)
        self.c.l = l2 = QGridLayout(self.c)
        self.c.setLayout(l2)
        l2.addWidget(self.details, 0, 0, 1, -1)
        self.splitter.addWidget(self.c)

        self.fit_cover = QCheckBox(_('Fit &cover within view'), self)
        self.fit_cover.setChecked(gprefs.get('book_info_dialog_fit_cover', True))
        l2.addWidget(self.fit_cover, l2.rowCount(), 0, 1, -1)
        self.previous_button = QPushButton(QIcon(I('previous.png')), _('&Previous'), self)
        self.previous_button.clicked.connect(self.previous)
        l2.addWidget(self.previous_button, l2.rowCount(), 0)
        self.next_button = QPushButton(QIcon(I('next.png')), _('&Next'), self)
        self.next_button.clicked.connect(self.next)
        l2.addWidget(self.next_button, l2.rowCount() - 1, 1)

        self.view = view
        self.current_row = None
        self.refresh(row)
        self.view.selectionModel().currentChanged.connect(self.slave)
        self.fit_cover.stateChanged.connect(self.toggle_cover_fit)
        self.ns = QShortcut(QKeySequence('Alt+Right'), self)
        self.ns.activated.connect(self.next)
        self.ps = QShortcut(QKeySequence('Alt+Left'), self)
        self.ps.activated.connect(self.previous)
        self.next_button.setToolTip(_('Next [%s]')%
                unicode(self.ns.key().toString(QKeySequence.NativeText)))
        self.previous_button.setToolTip(_('Previous [%s]')%
                unicode(self.ps.key().toString(QKeySequence.NativeText)))

        geom = QCoreApplication.instance().desktop().availableGeometry(self)
        screen_height = geom.height() - 100
        screen_width = geom.width() - 100
        self.resize(max(int(screen_width/2), 700), screen_height)
        saved_layout = gprefs.get('book_info_dialog_layout', None)
        if saved_layout is not None:
            try:
                self.restoreGeometry(saved_layout[0])
                self.splitter.restoreState(saved_layout[1])
            except Exception:
                pass

class BookInfo(QDialog):

    closed = pyqtSignal(object)

    def __init__(self, parent, view, row, link_delegate):
        QDialog.__init__(self, parent)
        self.normal_brush = QBrush(Qt.white)
        self.marked_brush = QBrush(Qt.lightGray)
        self.marked = None
        self.gui = parent
        self.splitter = QSplitter(self)
        self._l = l = QVBoxLayout(self)
        self.setLayout(l)
        l.addWidget(self.splitter)

        self.cover = CoverView(self)
        self.cover.resizeEvent = self.cover_view_resized
        self.cover.cover_changed.connect(self.cover_changed)
        self.cover_pixmap = None
        self.cover.sizeHint = self.details_size_hint
        self.splitter.addWidget(self.cover)

        self.details = QWebView(self)
        self.details.sizeHint = self.details_size_hint
        self.details.page().setLinkDelegationPolicy(self.details.page().DelegateAllLinks)
        self.details.linkClicked.connect(self.link_clicked)
        s = self.details.page().settings()
        s.setAttribute(s.JavascriptEnabled, False)
        self.css = css()
        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.c = QWidget(self)
        self.c.l = l2 = QGridLayout(self.c)
        self.c.setLayout(l2)
        l2.addWidget(self.details, 0, 0, 1, -1)
        self.splitter.addWidget(self.c)

        self.fit_cover = QCheckBox(_('Fit &cover within view'), self)
        self.fit_cover.setChecked(gprefs.get('book_info_dialog_fit_cover', True))
        l2.addWidget(self.fit_cover, l2.rowCount(), 0, 1, -1)
        self.previous_button = QPushButton(QIcon(I('previous.png')), _('&Previous'), self)
        self.previous_button.clicked.connect(self.previous)
        l2.addWidget(self.previous_button, l2.rowCount(), 0)
        self.next_button = QPushButton(QIcon(I('next.png')), _('&Next'), self)
        self.next_button.clicked.connect(self.next)
        l2.addWidget(self.next_button, l2.rowCount() - 1, 1)

        self.view = view
        self.current_row = None
        self.refresh(row)
        self.view.selectionModel().currentChanged.connect(self.slave)
        self.fit_cover.stateChanged.connect(self.toggle_cover_fit)
        self.ns = QShortcut(QKeySequence('Alt+Right'), self)
        self.ns.activated.connect(self.next)
        self.ps = QShortcut(QKeySequence('Alt+Left'), self)
        self.ps.activated.connect(self.previous)
        self.next_button.setToolTip(_('Next [%s]')%
                unicode(self.ns.key().toString(QKeySequence.NativeText)))
        self.previous_button.setToolTip(_('Previous [%s]')%
                unicode(self.ps.key().toString(QKeySequence.NativeText)))

        geom = QCoreApplication.instance().desktop().availableGeometry(self)
        screen_height = geom.height() - 100
        screen_width = geom.width() - 100
        self.resize(max(int(screen_width/2), 700), screen_height)
        saved_layout = gprefs.get('book_info_dialog_layout', None)
        if saved_layout is not None:
            try:
                self.restoreGeometry(saved_layout[0])
                self.splitter.restoreState(saved_layout[1])
            except Exception:
                pass

    def link_clicked(self, qurl):
        link = unicode(qurl.toString())
        self.link_delegate(link)

    def done(self, r):
        saved_layout = (bytearray(self.saveGeometry()), bytearray(self.splitter.saveState()))
        gprefs.set('book_info_dialog_layout', saved_layout)
        ret = QDialog.done(self, r)
        self.view.selectionModel().currentChanged.disconnect(self.slave)
        self.view = self.link_delegate = self.gui = None
        self.closed.emit(self)
        return ret

    def cover_changed(self, data):
        if self.current_row is not None:
            id_ = self.view.model().id(self.current_row)
            self.view.model().db.set_cover(id_, data)
        if self.gui.cover_flow:
            self.gui.cover_flow.dataChanged()
        ci = self.view.currentIndex()
        if ci.isValid():
            self.view.model().current_changed(ci, ci)
#.........这里部分代码省略.........

class Ui_PartWindow(QWidget):
    """
    The Ui_PartWindow class provides a Part Window UI object composed of three
    primary areas:

    - The "left area" contains the Project TabWidget which contains
    the Model Tree and Property Manager (tabs). Other tabs (widgets)
    can be added as needed.

    - The "right area" contains the Graphics Area (i.e. glpane) displaying
    the current model.

    - The "bottom area" lives below the left and right areas, spanning
    the full width of the part window. It can be used whenever a landscape
    layout is needed (i.e. the Sequence Editor). Typically, this area is
    not used and is hidden by default.

    A "part window" splitter lives between the left and right areas that
    allow the user to resize the shared area occupied by them. There is no
    splitter between the top and bottom areas.

    This class supports and is limited to a B{Single Document Interface (SDI)}.
    In time, NE1 will migrate to and support a Multiple Document Interface (MDI)
    to allow multiple project documents (i.e. parts, assemblies,
    simulations, text files, graphs, tables, etc. documents) to be available
    within the common workspace of the NE1 main window.

    @see: U{B{NE1 Main Window Framework}
    <http://www.nanoengineer-1.net/mediawiki/index.php?title=NE1_Main_Window_Framework>}
    """
    widgets = [] # For debugging purposes.
    splitterPosition = PM_DEFAULT_WIDTH
    _previous_splitterPosition = PM_DEFAULT_WIDTH
        # Used for restoring the splitter position when collapsing/expanding
        # the left area.

    def __init__(self, assy, parent):
        """
        Constructor for the part window.

        @param assy: The assembly (part)
        @type  assy: Assembly

        @param parent: The parent widget.
        @type  parent: U{B{QMainWindow}
                       <http://doc.trolltech.com/4/qmainwindow.html>}
        """
        QWidget.__init__(self, parent)
        self.parent = parent
        self.assy = assy
            # note: to support MDI, self.assy would probably need to be a
            # different assembly for each PartWindow.
            # [bruce 080216 comment]
        self.setWindowIcon(geticon("ui/border/Part.png"))
        self.updateWindowTitle()
        
        # The main layout for the part window is a VBoxLayout <pwVBoxLayout>.
        self.pwVBoxLayout = QVBoxLayout(self)
        pwVBoxLayout = self.pwVBoxLayout
        pwVBoxLayout.setMargin(0)
        pwVBoxLayout.setSpacing(0)

        # ################################################################
        # <pwSplitter> is the horizontal splitter b/w the
        # pwLeftArea (mt and pm) and the glpane.
        self.pwSplitter = QSplitter(Qt.Horizontal)
        pwSplitter = self.pwSplitter
        pwSplitter.setObjectName("pwSplitter")
        pwSplitter.setHandleWidth(3) # 3 pixels wide.
        pwVBoxLayout.addWidget(pwSplitter)

        # ##################################################################
        # <pwLeftArea> is the container holding the pwProjectTabWidget.
        # Note: Making pwLeftArea (and pwRightArea and pwBottomArea) QFrame
        # widgets has the benefit of making it easy to draw a border around
        # each area. One purpose of this would be to help developers understand
        # (visually) how the part window is laid out. I intend to add a debug
        # pref to draw part window area borders and add "What's This" text to
        # them. Mark 2008-01-05.
        self.pwLeftArea = LeftFrame(self)
        pwLeftArea = self.pwLeftArea
        pwLeftArea.setObjectName("pwLeftArea")
        pwLeftArea.setMinimumWidth(PM_MINIMUM_WIDTH)
        pwLeftArea.setMaximumWidth(PM_MAXIMUM_WIDTH)

        # Setting the frame style like this is nice since it clearly
        # defines the splitter at the top-left corner.
        pwLeftArea.setFrameStyle( QFrame.Panel | QFrame.Sunken )

        # This layout will contain splitter (above) and the pwBottomArea.
        leftChannelVBoxLayout = QVBoxLayout(pwLeftArea)
        leftChannelVBoxLayout.setMargin(0)
        leftChannelVBoxLayout.setSpacing(0)

        pwSplitter.addWidget(pwLeftArea)

        # Makes it so pwLeftArea is not collapsible.
        pwSplitter.setCollapsible (0, False)

        # ##################################################################
#.........这里部分代码省略.........