1itk(n)                             [incr Tk]                            itk(n)
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NAME

8       itk - framework for building mega-widgets in Tcl/Tk
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DESCRIPTION

13       Mega-widgets  are high-level widgets that are constructed using Tk wid‐
14       gets as component parts, usually without any C code.  A  fileselection‐
15       box, for example, may have a few listboxes, some entry widgets and some
16       control buttons.  These individual widgets are put together  in  a  way
17       that  makes them act like one big widget.  A fileselectionbox mega-wid‐
18       get can be created with a command like:
19              fileselectionbox .fsb -background blue -foreground white
20       Once it has been created, it can be reconfigured with a command like:
21              .fsb configure -background green -foreground black
22       and all of its internal components will change color.  Each mega-widget
23       has  a  set of methods that can be used to manipulate it.  For example,
24       the current selection can be queried from a fileselectionbox like this:
25              set fileName [.fsb get]
26       In effect, a mega-widget looks and acts exactly like a Tk  widget,  but
27       is considerably easier to implement.
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29       [incr Tk] is a framework for building mega-widgets.  It uses [incr Tcl]
30       to support the object paradigm, and adds  base  classes  which  provide
31       default widget behaviors.
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33       All  [incr Tk] widgets are derived from the Archetype base class.  This
34       class manages internal component widgets,  and  provides  methods  like
35       "configure" and "cget" to access configuration options.
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37       The Widget base class inherits everything from Archetype, and adds a Tk
38       frame which acts as a container for the mega-widget.   It  is  used  to
39       build  mega-widgets  that  sit  inside  of  other frames and toplevels.
40       Derived classes create other internal components and pack them into the
41       "hull" frame created by the Widget base class.
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43       The  Toplevel base class inherits everything from Archetype, but adds a
44       Tk toplevel which acts as a container for the mega-widget.  It is  used
45       to  build  mega-widgets,  such  as  dialog  boxes,  that have their own
46       toplevel window.  Derived classes create other internal components  and
47       pack them into the "hull" toplevel created by the Toplevel base class.
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[incr Widgets] LIBRARY

51       [incr Widgets]  is a mega-widget library built using [incr Tk].  It can
52       be used right out of the box, and contains more than 30 different  wid‐
53       get classes, including:
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55       -      fileselectiondialog
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57       -      tabnotebook
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59       -      panedwindow
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61       -      combobox
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63       -      optionmenu
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65       -      scrolledlistbox
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67       -      scrolledframe
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69       -      messagedialog
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71       -      and many others...
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73       The  catalog  demo  in  the "iwidgets/demos" directory shows all of the
74       available widgets in action.  Each widget class has its  own  man  page
75       describing the features available.
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KEYWORDS

79       class, object, object-oriented, mega-widget
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83itk                                   3.0                               itk(n)
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