sam-t2/devtools/v8plus/lib/python2.4/site-packages/Pmw/Pmw_1_2/doc/PanedWidget.html


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    <h1 ALIGN="CENTER">Pmw.PanedWidget</h1>

<center><IMG SRC=PanedWidget.gif ALT="" WIDTH=400 HEIGHT=128></center>
<dl>
<dt> <h3>Name</h3></dt><dd>
<p>Pmw.PanedWidget() -
    frame subdivided into several resizable panes
</p>


</dd>
<dt> <h3>Inherits</h3></dt><dd>
<a href="MegaWidget.html">Pmw.MegaWidget</a><br>
</dd>
<dt> <h3>Description</h3></dt><dd>
<p>
    A paned widget is a container megawidget which manages a number of
    resizable frames, known as panes.  Each pane may act as the container for
    other widgets.  The user may interactively resize the panes by
    dragging a small rectangle (the handle) or the line between the
    panes (the separator).  The panes may be arranged horizontally or
    vertically.  Each pane may have maximum and minimum limits of its
    size.</p>

<p></p>


</dd>
<dt> <h3>Options</h3></dt><dd>
Options for this megawidget and its base
classes are described below.<p></p>
<a name=option.command></a>
<dl><dt> <strong>command
</strong></dt><dd>
Specifies a function to be called whenever the size of any of the
    panes changes.  The function is called with a single argument,
    being a list of the sizes of the panes, in order.  For <strong>vertical</strong>
    orientation, the size is the height of the panes.  For
    <strong>horizontal</strong> orientation, the size is the width of the panes. The default is <strong>None</strong>.</p>


</dd></dl>
<a name=option.handlesize></a>
<dl><dt> <strong>handlesize
</strong></dt><dd>
Initialisation option. Specifies the size in pixels of the square handle which appears on
    the lines separating the panes. The default is <strong>8</strong>.</p>


</dd></dl>
<a name=option.orient></a>
<dl><dt> <strong>orient
</strong></dt><dd>
Initialisation option. Specifies the orientation of the paned widget.  This may be
    <strong>'horizontal'</strong> or <strong>'vertical'</strong>.  If <strong>'vertical'</strong>, the panes are
    stacked above and below each other, otherwise the panes are laid
    out side by side. The default is <strong>'vertical'</strong>.</p>


</dd></dl>
<a name=option.separatorrelief></a>
<dl><dt> <strong>separatorrelief
</strong></dt><dd>
Initialisation option. Specifies the relief of the lines separating the panes. The default is <strong>'sunken'</strong>.</p>


</dd></dl>
<a name=option.separatorthickness></a>
<dl><dt> <strong>separatorthickness
</strong></dt><dd>
Initialisation option. Specifies the thickness of the lines separating the panes. The default is <strong>2</strong>.</p>


</dd></dl>
</dd>
<dt> <h3>Pane options</h3></dt><dd>
<p>
        Each pane has the following options.  These may be set when
        creating or configuring a pane.  The value of each option may
        be an integer, which specifies a pane size in pixels, or a
        real number between 0.0 and 1.0, which specifies a pane size
        proportional to the size of the entire paned widget.</p>

<dl><dt><strong>size</strong></dt><dd>Specifies the initial size of the pane.  The default is <strong>0</strong>.<p></p>

</dd>
<dt><strong>min</strong></dt><dd>Specifies the minimum size of the pane.  The default is <strong>0</strong>.<p></p>

</dd>
<dt><strong>max</strong></dt><dd>Specifies the maximum size of the pane.  The default is a
            very large number.<p></p>
<p>        </p>


</dd></dl>

</dd>
<dt> <h3>Components</h3></dt><dd>
Components created by this megawidget and its base
classes are described below.<p></p>
<a name=component.hull></a>
<dl><dt> <strong>hull
</strong></dt><dd>
This acts as the body for the entire megawidget.  Other components
    are created as children of the hull to further specialise this
    class. By default, this component is a Tkinter.Frame.</p>


</dd></dl>
</dd>
<dt> <h3>Dynamic components</h3></dt><dd>
<p>
        Frame, separator and handle components are created dynamically
        by the <code>add()</code> and <code>insert()</code> methods.  The components are of type
        Tkinter.Frame and are created with component groups of
        <strong>Frame</strong>, <strong>Separator</strong> and <strong>Handle</strong> respectively.</p>
<p>        </p>


</dd>
<a name=methods></a>
<dt> <h3>Methods</h3></dt><dd>
Only methods specific to this megawidget are described below.
For a description of its inherited methods, see the
manual for its base class
<strong><a href="MegaWidget.html#methods">Pmw.MegaWidget</a></strong>.
<p></p>
<a name=method.add></a>
<dl><dt> <strong>add</strong>(<em>name</em>, **<em>kw</em>)</dt><dd>
Add a pane to the end of the paned widget as a component named
    <em>name</em>.  This is equivalent to calling <code>insert()</code> with <em>before</em>
    set to the current number of panes.  The method returns the <em>name</em>
    component widget.</p>


</dd></dl>
<a name=method.configurepane></a>
<dl><dt> <strong>configurepane</strong>(<em>name</em>, **<em>kw</em>)</dt><dd>
Configure the pane specified by <em>name</em>, where <em>name</em> is either an
    integer, specifying the index of the pane, or a string, specifying
    the name of the pane.  The keyword arguments specify the new
    values for the options for the pane.  These options are described
    in the <strong>Pane options</strong> section.</p>


</dd></dl>
<a name=method.delete></a>
<dl><dt> <strong>delete</strong>(<em>name</em>)</dt><dd>
Delete the pane specified by <em>name</em>, where <em>name</em> is either an
    integer, specifying the index of the pane, or a string, specifying
    the name of the pane.</p>
<p>    If the pane deleted was not the only pane in the paned widget,
    also delete the separator and handle components named
    <strong>separator</strong>-<em>n</em> and <strong>handle</strong>-<em>n</em>, where <em>n</em> is the number of
    panes remaining.</p>


</dd></dl>
<a name=method.insert></a>
<dl><dt> <strong>insert</strong>(<em>name</em>, <em>before</em> = <strong>0</strong>, **<em>kw</em>)</dt><dd>
Add a pane to the paned widget as a component named <em>name</em>.  The
    pane is added just before the pane specified by <em>before</em>, where
    <em>before</em> may be either an integer, specifying the index of the
    pane, or a string, specifying the name of the pane.  The keyword
    arguments specify the initial values for the options for the new
    pane.  These options are described in the <strong>Pane options</strong> section.
    To add a pane to the end of the paned widget, use <code>add()</code>.</p>
<p>    The new pane is created as a Tkinter.Frame component named <em>name</em>.
    If this is not the only pane, a separator and handle are also
    created as components named <strong>separator</strong>-<em>n</em> and <strong>handle</strong>-<em>n</em>,
    where <em>n</em> is one less than the number of panes.  The method
    returns the <em>name</em> component widget.</p>


</dd></dl>
<a name=method.move></a>
<dl><dt> <strong>move</strong>(<em>name</em>, <em>newPos</em>, <em>newPosOffset</em> = <strong>0</strong>)</dt><dd>
Move the pane specified by <em>name</em> to the new position specified by
    <em>newPos</em>.  The first two arguments may be either an integer,
    specifying the index of the pane, or a string, specifying the name
    of the pane.  If <em>newPosOffset</em> is specified, it is added to the
    <em>newPos</em> index.  For example, to move a horizontal pane one pane
    to the left, specify the name or index of the pane for both <em>name</em>
    and <em>newPos</em> and specify <strong>-1</strong> for <em>newPosOffset</em>.</p>


</dd></dl>
<a name=method.pane></a>
<dl><dt> <strong>pane</strong>(<em>name</em>)</dt><dd>
Return the Tkinter.Frame pane widget for the pane specified by
    <em>name</em>, where <em>name</em> is either an integer, specifying the index of
    the pane, or a string, specifying the name of the pane.</p>


</dd></dl>
<a name=method.panes></a>
<dl><dt> <strong>panes</strong>()</dt><dd>
Return a list of the names of the panes, in display order.</p>


</dd></dl>
<a name=method.setnaturalsize></a>
<dl><dt> <strong>setnaturalsize</strong>()</dt><dd>
If oriented horizontally, set the width of the paned widget to the
    sum of the requested widths of all panes and set the height to the
    maximum requested height of all panes.</p>
<p>    If oriented vertically, set the height of the paned widget to the
    sum of the requested heights of all panes and set the width to the
    maximum requested width of all panes.</p>


</dd></dl>
<a name=method.updatelayout></a>
<dl><dt> <strong>updatelayout</strong>()</dt><dd>
Recalculate size and position of panes.  This method must be
    called after adding or deleting one or more panes.  However it
    does not need to be called when panes are first added to a newly
    created paned widget, before it has been displayed.</p>


</dd></dl>
</dd>
<dt> <h3>Example</h3></dt><dd>
The image at the top of this manual is a snapshot
of the window (or part of the window) produced
by the following code.<p></p>
<pre>
class Demo:
    def __init__(self, parent):

        # Create a main PanedWidget with a few panes.
        self.pw = Pmw.PanedWidget(parent,
                orient='vertical',
                hull_borderwidth = 1,
                hull_relief = 'sunken',
                hull_width=300,
                hull_height=400)
        for self.numPanes in range(4):
            if self.numPanes == 1:
                name = 'Fixed size'
                pane = self.pw.add(name, min = .1, max = .1)
            else:
                name = 'Pane ' + str(self.numPanes)
                pane = self.pw.add(name, min = .1, size = .25)
            label = Tkinter.Label(pane, text = name)
            label.pack(side = 'left', expand = 1)
            button = Tkinter.Button(pane, text = 'Delete',
                    command = lambda s=self, n=name: s.deletePane(n))
            button.pack(side = 'left', expand = 1)
            # TODO: add buttons to invoke self.moveOneUp and self.moveOneUp.

        self.pw.pack(expand = 1, fill='both')

        buttonBox = Pmw.ButtonBox(parent)
        buttonBox.pack(fill = 'x')
        buttonBox.add('Add pane', command = self.addPane)
        buttonBox.add('Move pane', command = self.move)
        self.moveSrc = 0
        self.moveNewPos = 1
        self.moveBack = 0

    def move(self):
        numPanes = len(self.pw.panes())
        if numPanes == 0:
            print 'No panes to move!'
            return

        if self.moveSrc &gt;= numPanes:
            self.moveSrc = numPanes - 1
        if self.moveNewPos &gt;= numPanes:
            self.moveNewPos = numPanes - 1
        print 'Moving pane', self.moveSrc, 'to new position', self.moveNewPos
        self.pw.move(self.moveSrc, self.moveNewPos)

        self.moveSrc, self.moveNewPos = self.moveNewPos, self.moveSrc
        if self.moveBack:
            if self.moveNewPos == numPanes - 1:
                self.moveNewPos = 0
                if self.moveSrc == numPanes - 1:
                    self.moveSrc = 0
                else:
                    self.moveSrc = self.moveSrc + 1
            else:
                self.moveNewPos = self.moveNewPos + 1
        self.moveBack = not self.moveBack

    def addPane(self):
        self.numPanes = self.numPanes + 1
        name = 'Pane ' + str(self.numPanes)
        print 'Adding', name
        pane = self.pw.add(name, min = .1, size = .25)
        label = Tkinter.Label(pane, text = name)
        label.pack(side = 'left', expand = 1)
        button = Tkinter.Button(pane, text = 'Delete',
                command = lambda s=self, n=name: s.deletePane(n))
        button.pack(side = 'left', expand = 1)
        self.pw.updatelayout()

    def deletePane(self, name):
        print 'Deleting', name
        self.pw.delete(name)
        self.pw.updatelayout()

    def moveOneUp(self, name):
        self.pw.move(name, name, -1)

    def moveOneDown(self, name):
        self.pw.move(name, name, 1)

</pre>
</dd>
</dl>

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    Pmw 1.2 -
     5 Aug 2003
     - <a href="index.html">Home</a>
    <br>Manual page last reviewed: 14 April 2001
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