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- # -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
- #
- # $Id: Primitiv.tcl,v 1.2.2.2 2001/11/18 07:18:29 idiscovery Exp $
- #
- # Primitiv.tcl --
- #
- # This is the primitive widget. It is just a frame with proper
- # inheritance wrapping. All new Tix widgets will be derived from
- # this widget
- #
- # Copyright (c) 1993-1999 Ioi Kim Lam.
- # Copyright (c) 2000-2001 Tix Project Group.
- #
- # See the file "license.terms" for information on usage and redistribution
- # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- #
-
-
-
- # No superclass, so the superclass switch is not used
- #
- #
- tixWidgetClass tixPrimitive {
- -virtual true
- -superclass {}
- -classname TixPrimitive
- -method {
- cget configure subwidget subwidgets
- }
- -flag {
- -background -borderwidth -cursor
- -height -highlightbackground -highlightcolor -highlightthickness
- -options -relief -takefocus -width -bd -bg
- }
- -static {
- -options
- }
- -configspec {
- {-background background Background #d9d9d9}
- {-borderwidth borderWidth BorderWidth 0}
- {-cursor cursor Cursor ""}
- {-height height Height 0}
- {-highlightbackground highlightBackground HighlightBackground #c3c3c3}
- {-highlightcolor highlightColor HighlightColor black}
- {-highlightthickness highlightThickness HighlightThickness 0}
- {-options options Options ""}
- {-relief relief Relief flat}
- {-takefocus takeFocus TakeFocus 0 tixVerifyBoolean}
- {-width width Width 0}
- }
- -alias {
- {-bd -borderwidth}
- {-bg -background}
- }
- }
-
- #----------------------------------------------------------------------
- # ClassInitialization:
- #----------------------------------------------------------------------
-
- # not used
- # Implemented in C
- #
- # Override: never
- proc tixPrimitive:Constructor {w args} {
-
- upvar #0 $w data
- upvar #0 $data(className) classRec
-
- # Set up some minimal items in the class record.
- #
- set data(w:root) $w
- set data(rootCmd) $w:root
-
- # We need to create the root widget in order to parse the options
- # database
- tixCallMethod $w CreateRootWidget
-
- # Parse the default options from the options database
- #
- tixPrimitive:ParseDefaultOptions $w
-
- # Parse the options supplied by the user
- #
- tixPrimitive:ParseUserOptions $w $args
-
- # Rename the widget command so that it can be use to access
- # the methods of this class
-
- tixPrimitive:MkWidgetCmd $w
-
- # Inistalize the Widget Record
- #
- tixCallMethod $w InitWidgetRec
-
- # Construct the compound widget
- #
- tixCallMethod $w ConstructWidget
-
- # Do the bindings
- #
- tixCallMethod $w SetBindings
-
- # Call the configuration methods for all "force call" options
- #
- foreach option $classRec(forceCall) {
- tixInt_ChangeOptions $w $option $data($option)
- }
- }
-
-
- # Create only the root widget. We need the root widget to query the option
- # database.
- #
- # Override: seldom. (unless you want to use a toplevel as root widget)
- # Chain : never.
-
- proc tixPrimitive:CreateRootWidget {w args} {
- upvar #0 $w data
- upvar #0 $data(className) classRec
-
- frame $w -class $data(ClassName)
- }
-
- proc tixPrimitive:ParseDefaultOptions {w} {
- upvar #0 $w data
- upvar #0 $data(className) classRec
-
- # SET UP THE INSTANCE RECORD ACCORDING TO DEFAULT VALUES IN
- # THE OPTIONS DATABASE
- #
- foreach option $classRec(options) {
- set spec [tixInt_GetOptionSpec $data(className) $option]
-
- if {[lindex $spec 0] == "="} {
- continue
- }
-
- set o_name [lindex $spec 1]
- set o_class [lindex $spec 2]
- set o_default [lindex $spec 3]
-
- if {![catch "option get $w $o_name $o_class" db_default]} {
- if {$db_default != ""} {
- set data($option) $db_default
- } else {
- set data($option) $o_default
- }
- } else {
- set data($option) $o_default
- }
- }
- }
-
- proc tixPrimitive:ParseUserOptions {w arglist} {
- upvar #0 $w data
- upvar #0 $data(className) classRec
-
- # SET UP THE INSTANCE RECORD ACCORDING TO COMMAND ARGUMENTS FROM
- # THE USER OF THE TIX LIBRARY (i.e. Application programmer:)
- #
- tixForEach {option arg} $arglist {
- if {[lsearch $classRec(options) $option] != "-1"} {
- set spec [tixInt_GetOptionSpec $data(className) $option]
-
- if {[lindex $spec 0] != "="} {
- set data($option) $arg
- } else {
- set realOption [lindex $spec 1]
- set data($realOption) $arg
- }
- } else {
- error "unknown option $option. Should be: [tixInt_ListOptions $w]"
- }
- }
- }
-
- #----------------------------------------------------------------------
- # Initialize the widget record
- #
- #
- # Override: always
- # Chain : always, before
- proc tixPrimitive:InitWidgetRec {w} {
- # default: do nothing
- }
-
- #----------------------------------------------------------------------
- # SetBindings
- #
- #
- # Override: sometimes
- # Chain : sometimes, before
- #
- bind TixDestroyHandler <Destroy> {
- [tixGetMethod %W [set %W(className)] Destructor] %W
- }
-
- proc tixPrimitive:SetBindings {w} {
- upvar #0 $w data
-
- if {[winfo toplevel $w] == $w} {
- bindtags $w [concat TixDestroyHandler [bindtags $w]]
- } else {
- bind $data(w:root) <Destroy> \
- "[tixGetMethod $w $data(className) Destructor] $w"
- }
- }
-
- #----------------------------------------------------------------------
- # PrivateMethod: ConstructWidget
- #
- # Construct and set up the compound widget
- #
- # Override: sometimes
- # Chain : sometimes, before
- #
- proc tixPrimitive:ConstructWidget {w} {
- upvar #0 $w data
-
- $data(rootCmd) config \
- -background $data(-background) \
- -borderwidth $data(-borderwidth) \
- -cursor $data(-cursor) \
- -relief $data(-relief)
-
- if {$data(-width) != 0} {
- $data(rootCmd) config -width $data(-width)
- }
- if {$data(-height) != 0} {
- $data(rootCmd) config -height $data(-height)
- }
-
- set rootname *[string range $w 1 end]
-
- tixForEach {spec value} $data(-options) {
- option add $rootname*$spec $value 100
- }
- }
-
- #----------------------------------------------------------------------
- # PrivateMethod: MkWidgetCmd
- #
- # Construct and set up the compound widget
- #
- # Override: sometimes
- # Chain : sometimes, before
- #
- proc tixPrimitive:MkWidgetCmd {w} {
- upvar #0 $w data
-
- rename $w $data(rootCmd)
- tixInt_MkInstanceCmd $w
- }
-
-
- #----------------------------------------------------------------------
- # ConfigOptions:
- #----------------------------------------------------------------------
-
- #----------------------------------------------------------------------
- # ConfigMethod: config
- #
- # Configure one option.
- #
- # Override: always
- # Chain : automatic.
- #
- # Note the hack of [winfo width] in this procedure
- #
- # The hack is necessary because of the bad interaction between TK's geometry
- # manager (the packer) and the frame widget. The packer determines the size
- # of the root widget of the ComboBox (a frame widget) according to the
- # requirement of the slaves inside the frame widget, NOT the -width
- # option of the frame widget.
- #
- # However, everytime the frame widget is
- # configured, it sends a geometry request to the packer according to its
- # -width and -height options and the packer will temporarily resize
- # the frame widget according to the requested size! The packer then realizes
- # something is wrong and revert to the size determined by the slaves. This
- # cause a flash on the screen.
- #
- foreach opt {-height -width -background -borderwidth -cursor
- -highlightbackground -highlightcolor -relief -takefocus -bd -bg} {
-
- set tixPrimOpt($opt) 1
- }
-
- proc tixPrimitive:config {w option value} {
- global tixPrimOpt
- upvar #0 $w data
-
- if {[info exists tixPrimOpt($option)]} {
- $data(rootCmd) config $option $value
- }
- }
-
- #----------------------------------------------------------------------
- # PublicMethods:
- #----------------------------------------------------------------------
-
- #----------------------------------------------------------------------
- # This method is used to implement the "subwidgets" widget command.
- # Will be re-written in C. It can't be used as a public method because
- # of the lame substring comparison routines used in tixClass.c
- #
- #
- proc tixPrimitive:subwidgets {w type args} {
- upvar #0 $w data
-
- case $type {
- -class {
- set name [lindex $args 0]
- set args [lrange $args 1 end]
- # access subwidgets of a particular class
- #
- # note: if $name=="Frame", will *not return the root widget as well
- #
- set sub ""
- foreach des [tixDescendants $w] {
- if {[winfo class $des] == $name} {
- lappend sub $des
- }
- }
-
- # Note: if the there is no subwidget of this class, does not
- # cause any error.
- #
- if {$args == ""} {
- return $sub
- } else {
- foreach des $sub {
- eval $des $args
- }
- return ""
- }
- }
- -group {
- set name [lindex $args 0]
- set args [lrange $args 1 end]
- # access subwidgets of a particular group
- #
- if {[info exists data(g:$name)]} {
- if {$args == ""} {
- set ret ""
- foreach item $data(g:$name) {
- lappend ret $w.$item
- }
- return $ret
- } else {
- foreach item $data(g:$name) {
- eval $w.$item $args
- }
- return ""
- }
- } else {
- error "no such subwidget group $name"
- }
- }
- -all {
- set sub [tixDescendants $w]
-
- if {$args == ""} {
- return $sub
- } else {
- foreach des $sub {
- eval $des $args
- }
- return ""
- }
- }
- default {
- error "unknown flag $type, should be -all, -class or -group"
- }
- }
- }
-
- #----------------------------------------------------------------------
- # PublicMethod: subwidget
- #
- # Access a subwidget withe a particular name
- #
- # Override: never
- # Chain : never
- #
- # This is implemented in native C code in tixClass.c
- #
- proc tixPrimitive:subwidget {w name args} {
- upvar #0 $w data
-
- if {[info exists data(w:$name)]} {
- if {$args == ""} {
- return $data(w:$name)
- } else {
- return [eval $data(w:$name) $args]
- }
- } else {
- error "no such subwidget $name"
- }
- }
-
-
- #----------------------------------------------------------------------
- # PrivateMethods:
- #----------------------------------------------------------------------
-
- # delete the widget record and remove the command
- #
- proc tixPrimitive:Destructor {w} {
- upvar #0 $w data
-
- if {![info exists data(w:root)]} {
- return
- }
-
- if {[info commands $w] != ""} {
- # remove the command
- #
- rename $w ""
- }
-
- if {[info commands $data(rootCmd)] != ""} {
- # remove the command of the root widget
- #
- rename $data(rootCmd) ""
- }
-
- # delete the widget record
- #
- catch {unset data}
- }
-