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<html>
<head>
<meta name="description" content="Pmw - a toolkit for building high-level compound widgets in Python">
<meta name="content" content="python, megawidget, mega widget, compound widget, gui, tkinter">
<title>Pmw.PanedWidget reference manual</title>
</head>
<body bgcolor="#ffffff" text="#000000" link="#0000ee"
vlink="551a8b" alink="ff0000">
<h1 ALIGN="CENTER">Pmw.PanedWidget</h1>
<p>
<center><IMG SRC=PanedWidget.gif ALT="" WIDTH=400 HEIGHT=128></center>
<dl>
<dt> <h3>Name</h3><dd>
<p>Pmw.PanedWidget() -
frame subdivided into several resizable panes
</p>
<dt> <h3>Inherits</h3><dd>
<a href="MegaWidget.html">Pmw.MegaWidget</a><br>
<dt> <h3>Description</h3><dd>
<p>
This class creates a manager widget for containing resizable
frames, known as panes. Each pane may act as the container for
other widgets. The user may 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.</p>
<p></p>
<dt> <h3>Options</h3><dd>
Options for this megawidget and its base
classes are described below.<p>
<a name=option.command></a>
<dl><dt> <strong>command
</strong><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>
</dt></dl>
<a name=option.handlesize></a>
<dl><dt> <strong>handlesize
</strong><dd>
Initialisation option. The default is <strong>8</strong>.</p>
</dt></dl>
<a name=option.orient></a>
<dl><dt> <strong>orient
</strong><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>
</dt></dl>
<a name=option.separatorrelief></a>
<dl><dt> <strong>separatorrelief
</strong><dd>
Initialisation option. Specifies the relief of the line separating the panes. The default is <strong>'sunken'</strong>.</p>
</dt></dl>
<a name=option.separatorthickness></a>
<dl><dt> <strong>separatorthickness
</strong><dd>
Initialisation option. The default is <strong>2</strong>.</p>
</dt></dl>
<dt> <h3>Pane options</h3><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><dd>Specifies the initial size of the pane. The default is <strong>0</strong>.</p>
<dt><strong>min</strong><dd>Specifies the minimum size of the pane. The default is <strong>0</strong>.</p>
<dt><strong>max</strong><dd>Specifies the maximum size of the pane. The default is a
very large number.</p>
<p> </p>
</dl>
<dt> <h3>Components</h3><dd>
Components created by this megawidget and its base
classes are described below.<p>
<a name=component.hull></a>
<dl><dt> <strong>hull
</strong><dd>
This acts as the body for the entire megawidget. Other components
are created as children of the hull to further specialise the
widget. By default, this component is a Tkinter.Frame.</p>
</dt></dl>
<dt> <h3>Dynamic components</h3><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>
<a name=methods></a>
<dt> <h3>Methods</h3><dd>
Only methods specific to this megawidget are described below.
For a description of its inherited methods, see the
manuals for its base classes.
<p>
<a name=method.add></a>
<dl><dt> <strong>add</strong>(<em>name</em>, **<em>kw</em>)<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>
</dt></dl>
<a name=method.configurepane></a>
<dl><dt> <strong>configurepane</strong>(<em>name</em>, **<em>kw</em>)<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>
</dt></dl>
<a name=method.delete></a>
<dl><dt> <strong>delete</strong>(<em>name</em>)<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>
</dt></dl>
<a name=method.insert></a>
<dl><dt> <strong>insert</strong>(<em>name</em>, <em>before</em> = <strong>0</strong>, **<em>kw</em>)<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>
</dt></dl>
<a name=method.pane></a>
<dl><dt> <strong>pane</strong>(<em>name</em>)<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>
</dt></dl>
<a name=method.panes></a>
<dl><dt> <strong>panes</strong>()<dd>
Return a list of the names of the panes, in display order.</p>
</dt></dl>
<a name=method.setnaturalsize></a>
<dl><dt> <strong>setnaturalsize</strong>()<dd>
<p></p>
</dt></dl>
<dt> <h3>Example</h3><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>
<pre>
class Demo:
def __init__(self, parent):
self.paneCount = 0
# Create a main PanedWidget with top and bottom panes.
pane = Pmw.PanedWidget(parent, hull_width=400, hull_height=300)
pane.add('top', min=100)
pane.add('bottom', min=100)
# Create three panes in the top pane.
topPane = Pmw.PanedWidget(pane.pane('top'), orient='horizontal',
hull_width=0, hull_height=0)
for num in range(4):
if num == 1:
name = 'Fixed\nsize'
topPane.add(name, min = .2, max = .2)
else:
name = 'Pane\n' + str(num)
topPane.add(name, min = .1, size = .25)
button = Tkinter.Button(topPane.pane(name), text = name)
button.pack(expand = 1)
topPane.pack(expand = 1, fill='both')
# Create a "pane factory" in the bottom pane.
label = Tkinter.Label(pane.pane('bottom'),
pady = 10,
text = 'Below is a "pane factory".\n' +
'Drag the handle on the left\nto create new panes.')
label.pack()
self.bottomPane = Pmw.PanedWidget(pane.pane('bottom'),
orient='horizontal',
command = self.resize,
hull_borderwidth = 1,
hull_relief = 'raised',
hull_width=0, hull_height=0
)
self.bottomPane.add('starter', size = 0.0)
self.bottomPane.add('main')
button = Tkinter.Button(self.bottomPane.pane('main'),
text = 'Pane\n0')
button.pack(expand = 1)
self.bottomPane.pack(expand = 1, fill = 'both')
pane.pack(expand = 1, fill = 'both')
def resize(self, list):
pane = self.bottomPane
# Remove any panes less than 2 pixel wide.
for i in range(len(list) - 1, 0, -1):
if list[i] < 2:
pane.delete(i)
# If the user has dragged the left hand handle, create a new pane.
if list[0] > 1:
self.paneCount = self.paneCount + 1
# Add a button to the new pane.
name = pane.panes()[0]
text = 'Pane\n' + str(self.paneCount)
button = Tkinter.Button(pane.pane(name), text = text)
button.pack(expand = 1)
# Create a new starter pane.
name = 'Pane ' + str(self.paneCount)
pane.insert(name, size=0.0)
</pre>
</dl>
<center><P ALIGN="CENTER">
<IMG SRC = blue_line.gif ALT = "" WIDTH=320 HEIGHT=5>
</p></center>
<font size=-1>
<center><P ALIGN="CENTER">
<a href="index.html">Home</a>.
Pmw 0.8.5
Maintainer
<a href="mailto:gregm@iname.com">gregm@iname.com</a>.
9 Feb 2001
</p></center>
</font>
</body>
</html>
|
