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399 lines
9.5 KiB
399 lines
9.5 KiB
6 years ago
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# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
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#
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# $Id: Tix.tcl,v 1.14 2008/03/17 23:01:10 hobbs Exp $
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#
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# Tix.tcl --
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#
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# This file implements the Tix application context class
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#
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# Copyright (c) 1993-1999 Ioi Kim Lam.
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# Copyright (c) 2000-2001 Tix Project Group.
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# Copyright (c) 2004 ActiveState
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#
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# See the file "license.terms" for information on usage and redistribution
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#
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tixClass tixAppContext {
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-superclass {}
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-classname TixAppContext
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-method {
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cget configure addbitmapdir filedialog getbitmap getimage
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option platform resetoptions setbitmap initstyle
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}
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-flag {
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-binding -debug -extracmdargs -filedialog -fontset -grabmode
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-haspixmap -libdir -scheme -schemepriority -percentsubst
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}
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-readonly {
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-haspixmap
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}
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-configspec {
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{-binding TK}
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{-debug 0}
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{-extracmdargs 1}
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{-filedialog ""}
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{-fontset WmDefault}
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{-grabmode global}
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{-haspixmap 0}
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{-libdir ""}
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{-percentsubst 0}
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{-scheme WmDefault}
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{-schemepriority 21}
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}
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-alias {
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}
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}
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proc tixAppContext:Constructor {w} {
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upvar #0 $w data
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global tix_priv tix_library tixOption
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if {[info exists data(initialized)]} {
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error "tixAppContext has already be initialized"
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} else {
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set data(initialized) 1
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}
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set data(et) [string equal $tix_library ""]
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set data(image) 0
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# These options were set when Tix was loaded
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#
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set data(-binding) $tix_priv(-binding)
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set data(-debug) $tix_priv(-debug)
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set data(-fontset) $tix_priv(-fontset)
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set data(-scheme) $tix_priv(-scheme)
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set data(-schemepriority) $tix_priv(-schemepriority)
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if {![info exists tix_priv(isSafe)]} {
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set data(-libdir) [file normalize $tix_library]
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}
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set tixOption(prioLevel) $tix_priv(-schemepriority)
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# Compatibility stuff: the obsolete name courier_font has been changed to
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# fixed_font
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set tixOption(fixed_font) Courier
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set tixOption(courier_font) $tixOption(fixed_font)
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# Enable/Disable Intrinsics debugging
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#
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set tix_priv(debug) [string is true -strict $data(-debug)]
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tixAppContext:BitmapInit $w
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tixAppContext:FileDialogInit $w
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# Clean up any error message generated by the above loop
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set ::errorInfo ""
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}
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proc tixAppContext:initstyle {w} {
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# Do the init stuff here that affects styles
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upvar #0 $w data
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global tix_priv
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if {![info exists tix_priv(isSafe)]} {
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tixAppContext:config-fontset $w $data(-fontset)
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tixAppContext:config-scheme $w $data(-scheme)
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}
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tixAppContext:BitmapInit $w
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tixAppContext:FileDialogInit $w
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# Force the "." window to accept the new Tix options
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#
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set noconfig [list -class -colormap -container -menu -screen -use -visual]
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set noconfig [lsort $noconfig]
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foreach spec [. configure] {
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set flag [lindex $spec 0]
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if {[llength $spec] != 5
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|| [lsearch -exact -sorted $noconfig $flag] != -1} {
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continue
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}
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set name [lindex $spec 1]
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set class [lindex $spec 2]
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set value [option get . $name $class]
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catch {. configure $flag $value}
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}
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}
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#----------------------------------------------------------------------
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# Configurations
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#
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#----------------------------------------------------------------------
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proc tixAppContext:resetoptions {w scheme fontset {schemePrio ""}} {
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upvar #0 $w data
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if {! $data(et)} {
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global tixOption
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option clear
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if {$schemePrio != ""} {
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set tixOption(prioLevel) $schemePrio
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}
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tixAppContext:config-scheme $w $scheme
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tixAppContext:config-fontset $w $fontset
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}
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}
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proc tixAppContext:StartupError {args} {
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bgerror [join $args "\n"]
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}
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proc tixAppContext:config-fontset {w value} {
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upvar #0 $w data
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global tix_priv tixOption
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set data(-fontset) $value
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#-----------------------------------
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# Initialization of options database
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#-----------------------------------
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# Load the fontset
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#
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if {!$data(et)} {
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set prefDir [file join $data(-libdir) pref]
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set fontSetFile [file join $prefDir $data(-fontset).fsc]
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if {[file exists $fontSetFile]} {
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source $fontSetFile
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tixPref:InitFontSet:$data(-fontset)
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tixPref:SetFontSet:$data(-fontset)
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} else {
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tixAppContext:StartupError \
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" Error: cannot use fontset \"$data(-fontset)\"" \
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" Using default fontset "
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tixSetDefaultFontset
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}
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} else {
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if [catch {
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tixPref:InitFontSet:$data(-fontset)
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tixPref:SetFontSet:$data(-fontset)
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}] {
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# User chose non-existent fontset
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#
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tixAppContext:StartupError \
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" Error: cannot use fontset \"$data(-fontset)\"" \
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" Using default fontset "
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tixSetDefaultFontset
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}
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}
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}
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proc tixAppContext:config-scheme {w value} {
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upvar #0 $w data
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global tix_priv
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set data(-scheme) $value
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# Load the color scheme
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#
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if {!$data(et)} {
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set schemeName [file join [file join $data(-libdir) pref] \
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$data(-scheme).csc]
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if {[file exists $schemeName]} {
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source $schemeName
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tixPref:SetScheme-Color:$data(-scheme)
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} else {
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tixAppContext:StartupError \
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" Error: cannot use color scheme \"$data(-scheme)\"" \
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" Using default color scheme"
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tixSetDefaultScheme-Color
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}
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} else {
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if [catch {tixPref:SetScheme-Color:$data(-scheme)}] {
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# User chose non-existent color scheme
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#
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tixAppContext:StartupError \
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" Error: cannot use color scheme \"$data(-scheme)\"" \
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" Using default color scheme"
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tixSetDefaultScheme-Color
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}
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}
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}
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#----------------------------------------------------------------------
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# Private methods
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#
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#----------------------------------------------------------------------
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proc tixAppContext:BitmapInit {w} {
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upvar #0 $w data
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# See whether we have pixmap extension
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#
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set data(-haspixmap) true
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# Dynamically set the bitmap directory
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#
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if {! $data(et)} {
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set data(bitmapdirs) [list [file join $data(-libdir) bitmaps]]
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} else {
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set data(bitmapdirs) ""
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}
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}
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proc tixAppContext:FileDialogInit {w} {
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upvar #0 $w data
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if {$data(-filedialog) == ""} {
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set data(-filedialog) [option get . fileDialog FileDialog]
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}
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if {$data(-filedialog) == ""} {
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set data(-filedialog) tixFileSelectDialog
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}
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}
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#----------------------------------------------------------------------
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# Public methods
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#----------------------------------------------------------------------
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proc tixAppContext:addbitmapdir {w bmpdir} {
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upvar #0 $w data
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if {[lsearch $data(bitmapdirs) $bmpdir] == -1} {
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lappend data(bitmapdirs) $bmpdir
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}
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}
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proc tixAppContext:getimage {w name} {
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upvar #0 $w data
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global tix_priv
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if {[info exists data(img:$name)]} {
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return $data(img:$name)
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}
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if {![info exists tix_priv(isSafe)]} {
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foreach dir $data(bitmapdirs) {
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foreach {ext type} {
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.xpm pixmap
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.gif photo
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.ppm photo
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.xbm bitmap
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"" bitmap
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} {
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set file [file join $dir $name$ext]
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if {[file exists $file]
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&& ![catch {
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set img tiximage$data(image)
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set data(img:$name) \
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[image create $type $img -file $file]
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}]} {
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incr data(image)
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break
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}
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}
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if {[info exists data(img:$name)]} {
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return $data(img:$name)
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}
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}
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}
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if {![info exists data(img:$name)]} {
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catch {
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set img tiximage$data(image)
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# This is for compiled-in images
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set data(img:$name) [image create pixmap $img -id $name]
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} err
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if {[string match internal* $err]} {
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error $err
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} else {
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incr data(image)
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}
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}
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if {[info exists data(img:$name)]} {
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return $data(img:$name)
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} else {
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error "image file \"$name\" cannot be found"
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}
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}
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proc tixAppContext:getbitmap {w bitmapname} {
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upvar #0 $w data
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global tix_priv
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if {[info exists data(bmp:$bitmapname)]} {
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return $data(bmp:$bitmapname)
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} else {
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set ext [file extension $bitmapname]
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if {$ext == ""} {
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set ext .xbm
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}
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# This is the fallback value. If we can't find the bitmap in
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# the bitmap directories, then use the name of the bitmap
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# as the default value.
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#
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set data(bmp:$bitmapname) $bitmapname
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if {[info exists tix_priv(isSafe)]} {
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return $data(bmp:$bitmapname)
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}
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foreach dir $data(bitmapdirs) {
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if {$ext eq ".xbm" &&
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[file exists [file join $dir $bitmapname.xbm]]} {
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set data(bmp:$bitmapname) \
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@[file join $dir $bitmapname.xbm]
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break
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}
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if {[file exists [file join $dir $bitmapname]]} {
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set data(bmp:$bitmapname) @[file join $dir $bitmapname]
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break
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}
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}
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return $data(bmp:$bitmapname)
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}
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}
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proc tixAppContext:filedialog {w {type tixFileSelectDialog}} {
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upvar #0 $w data
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if {$type == ""} {
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set type $data(-filedialog)
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}
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if {![info exists data(filedialog,$type)]} {
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set data(filedialog,$type) ""
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}
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if {$data(filedialog,$type) == "" || \
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![winfo exists $data(filedialog,$type)]} {
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set data(filedialog,$type) [$type .tixapp_filedialog_$type]
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}
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return $data(filedialog,$type)
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}
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proc tixAppContext:option {w action {option ""} {value ""}} {
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global tixOption
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if {$action eq "get"} {
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if {$option == ""} {return [lsort [array names tixOption]]}
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return $tixOption($option)
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}
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}
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proc tixAppContext:platform {w} {
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return $::tcl_platform(platform)
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}
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proc tixDebug {message {level "1"}} {
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set debug [tix cget -debug]
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if {![string is true -strict $debug]} { return }
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if {$debug > 0} {
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# use $level here
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if {[catch {fconfigure stderr}]} {
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# This will happen under PYTHONW.EXE or frozen Windows apps
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proc tixDebug args {}
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} else {
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puts stderr $message
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}
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}
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}
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if {![llength [info commands toplevel]]} {
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interp alias {} toplevel {} frame
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}
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