[5679] | 1 | # -*- mode: tcl; indent-tabs-mode: nil -*- |
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[11] | 2 | # ---------------------------------------------------------------------- |
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| 3 | # COMPONENT: loader - widget for loading examples and old runs |
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| 4 | # |
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| 5 | # This widget is a glorified combobox that is used to load various |
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| 6 | # example files into the application. |
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| 7 | # ====================================================================== |
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| 8 | # AUTHOR: Michael McLennan, Purdue University |
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[3177] | 9 | # Copyright (c) 2004-2012 HUBzero Foundation, LLC |
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[115] | 10 | # |
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| 11 | # See the file "license.terms" for information on usage and |
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| 12 | # redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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[11] | 13 | # ====================================================================== |
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| 14 | package require Itk |
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| 15 | |
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| 16 | option add *Loader.textForeground black widgetDefault |
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| 17 | option add *Loader.textBackground white widgetDefault |
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| 18 | |
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| 19 | itcl::class Rappture::Loader { |
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| 20 | inherit itk::Widget |
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| 21 | |
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| 22 | itk_option define -tool tool Tool "" |
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[437] | 23 | itk_option define -state state State "normal" |
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[11] | 24 | |
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[22] | 25 | constructor {owner path args} { # defined below } |
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[640] | 26 | destructor { # defined below } |
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[11] | 27 | |
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| 28 | public method value {args} |
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| 29 | |
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| 30 | public method label {} |
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| 31 | public method tooltip {} |
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| 32 | |
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| 33 | protected method _newValue {} |
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[640] | 34 | protected method _uploadValue {path args} |
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| 35 | protected method _downloadValues {} |
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[11] | 36 | protected method _tooltip {} |
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[3186] | 37 | protected method _log {} |
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[11] | 38 | |
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[5679] | 39 | private method SetDefaultValue { value } |
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[2241] | 40 | |
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[22] | 41 | private variable _owner "" ;# thing managing this control |
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[11] | 42 | private variable _path "" ;# path in XML to this loader |
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[201] | 43 | private variable _lastlabel "";# label of last example loaded |
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[193] | 44 | |
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[640] | 45 | private variable _uppath "" ;# list: path label desc ... |
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| 46 | private variable _dnpaths "" ;# list of download element paths |
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| 47 | private common _dnpath2state ;# maps download path => yes/no state |
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[1225] | 48 | private variable _copyfrom "" ;# copy xml objects from here in example lib |
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| 49 | private variable _copyto "" ;# copy xml objects here in example lib |
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| 50 | private variable _label2file ;# maps combobox labels to filenames |
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[11] | 51 | } |
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| 52 | |
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| 53 | itk::usual Loader { |
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| 54 | keep -cursor -font |
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| 55 | keep -foreground -background |
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| 56 | keep -textforeground -textbackground |
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| 57 | keep -selectbackground -selectforeground -selectborderwidth |
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| 58 | } |
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| 59 | |
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| 60 | # ---------------------------------------------------------------------- |
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| 61 | # CONSTRUCTOR |
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| 62 | # ---------------------------------------------------------------------- |
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[22] | 63 | itcl::body Rappture::Loader::constructor {owner path args} { |
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| 64 | if {[catch {$owner isa Rappture::ControlOwner} valid] != 0 || !$valid} { |
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[1694] | 65 | error "bad object \"$owner\": should be Rappture::ControlOwner" |
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[11] | 66 | } |
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[22] | 67 | set _owner $owner |
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[11] | 68 | set _path $path |
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| 69 | |
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| 70 | itk_component add combo { |
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[3186] | 71 | Rappture::Combobox $itk_interior.combo -editable no \ |
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| 72 | -interactcommand [itcl::code $this _log] |
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[11] | 73 | } { |
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[1694] | 74 | usual |
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| 75 | keep -width |
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[11] | 76 | } |
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| 77 | pack $itk_component(combo) -expand yes -fill both |
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| 78 | bind $itk_component(combo) <<Value>> [itcl::code $this _newValue] |
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| 79 | |
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| 80 | eval itk_initialize $args |
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| 81 | |
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[201] | 82 | # example files are stored here |
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| 83 | if {$itk_option(-tool) != ""} { |
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[1694] | 84 | set fdir [$itk_option(-tool) installdir] |
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[201] | 85 | } else { |
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[1694] | 86 | set fdir "." |
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[201] | 87 | } |
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[3512] | 88 | set defval [string trim [$_owner xml get $path.default]] |
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[201] | 89 | |
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[11] | 90 | # |
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[201] | 91 | # If this loader has a <new> section, then create that |
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[193] | 92 | # entry first. |
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| 93 | # |
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[201] | 94 | set newfile "" |
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| 95 | foreach comp [$_owner xml children -type new $path] { |
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[3647] | 96 | set name [string trim [$_owner xml get $path.$comp]] |
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[1694] | 97 | set fname [file join $fdir examples $name] |
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[201] | 98 | |
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[1694] | 99 | if {[file exists $fname]} { |
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| 100 | set newfile $fname |
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[1263] | 101 | |
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[1694] | 102 | if {[catch {set obj [Rappture::library $fname]} result]} { |
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| 103 | puts stderr "WARNING: can't load example file \"$fname\"" |
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| 104 | puts stderr " $result" |
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| 105 | } else { |
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| 106 | set label "New" |
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| 107 | $itk_component(combo) choices insert end $obj $label |
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[1263] | 108 | |
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[1694] | 109 | # if this is new, add it to the label->file hash |
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| 110 | if {![info exists entries($label)]} { |
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| 111 | set entries($label) $obj |
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| 112 | set _label2file($label) [file tail $fname] |
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| 113 | } |
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[1263] | 114 | |
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[1694] | 115 | # translate default file name => default label |
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| 116 | if {[string equal $defval [file tail $fname]]} { |
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| 117 | $_owner xml put $path.default "New" |
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| 118 | } |
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| 119 | } |
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| 120 | break |
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| 121 | } else { |
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| 122 | puts stderr "WARNING: missing example file \"$fname\"" |
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| 123 | } |
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[201] | 124 | } |
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| 125 | |
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| 126 | # |
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| 127 | # If this loader has an <upload> section, then create that |
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| 128 | # entry next. |
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| 129 | # |
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[193] | 130 | foreach comp [$_owner xml children -type upload $path] { |
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[1694] | 131 | foreach tcomp [$_owner xml children -type to $path.$comp] { |
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[3512] | 132 | set topath [string trim [$_owner xml get $path.$comp.$tcomp]] |
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[1694] | 133 | if { [$_owner xml element -as id $topath] == "" } { |
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| 134 | puts stderr \ |
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| 135 | "unknown <upload> path \"$topath\": please fix tool.xml" |
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| 136 | continue |
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| 137 | } |
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[3647] | 138 | set label [string trim [$_owner xml get $topath.about.label]] |
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| 139 | set desc [string trim [$_owner xml get $topath.about.description]] |
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[1694] | 140 | lappend _uppath $topath $label $desc |
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| 141 | } |
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| 142 | break |
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[193] | 143 | } |
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[640] | 144 | if {[llength $_uppath] > 0} { |
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[1694] | 145 | $itk_component(combo) choices insert end \ |
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| 146 | @upload [Rappture::filexfer::label upload] |
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[640] | 147 | } |
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[193] | 148 | |
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| 149 | # |
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[201] | 150 | # If this loader has a <download> section, then create that |
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[640] | 151 | # entry next. Build a popup for choices if there is more than |
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| 152 | # one download element. |
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[201] | 153 | # |
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[640] | 154 | Rappture::Balloon $itk_component(hull).download \ |
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[1694] | 155 | -title "Choose what to [string tolower [Rappture::filexfer::label downloadWord]]:" |
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[640] | 156 | set inner [$itk_component(hull).download component inner] |
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| 157 | |
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| 158 | set i 0 |
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[201] | 159 | foreach comp [$_owner xml children -type download $path] { |
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[1694] | 160 | foreach dcomp [$_owner xml children -type from $path.$comp] { |
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[3512] | 161 | set frompath [string trim [$_owner xml get $path.$comp.$dcomp]] |
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[1694] | 162 | if {"" != $frompath} { |
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| 163 | lappend _dnpaths $frompath |
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| 164 | set _dnpath2state($this-$frompath) [expr {$i == 0}] |
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[640] | 165 | |
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[3647] | 166 | set label [string trim [$_owner xml get $frompath.about.label]] |
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[1694] | 167 | checkbutton $inner.cb$i -text $label \ |
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| 168 | -variable ::Rappture::Loader::_dnpath2state($this-$frompath) |
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| 169 | pack $inner.cb$i -anchor w |
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| 170 | incr i |
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| 171 | } |
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| 172 | } |
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[201] | 173 | } |
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[1077] | 174 | button $inner.go -text [Rappture::filexfer::label download] \ |
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[1694] | 175 | -command [itcl::code $this _downloadValues] |
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[640] | 176 | pack $inner.go -side bottom -padx 50 -pady {4 2} |
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[201] | 177 | |
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[640] | 178 | if {[llength $_dnpaths] > 0} { |
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[1694] | 179 | $itk_component(combo) choices insert end \ |
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| 180 | @download [Rappture::filexfer::label download] |
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[640] | 181 | } |
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| 182 | |
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[201] | 183 | if {[$itk_component(combo) choices size] > 0} { |
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[1694] | 184 | $itk_component(combo) choices insert end "---" "---" |
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[201] | 185 | } |
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| 186 | |
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| 187 | # |
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[11] | 188 | # Scan through and extract example objects, and load them into |
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| 189 | # the combobox. |
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| 190 | # |
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[13] | 191 | set flist "" |
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[22] | 192 | foreach comp [$_owner xml children -type example $path] { |
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[3512] | 193 | lappend flist [string trim [$_owner xml get $path.$comp]] |
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[13] | 194 | } |
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| 195 | |
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| 196 | # if there are no examples, then look for *.xml |
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| 197 | if {[llength $flist] == 0} { |
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[1694] | 198 | set flist *.xml |
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[13] | 199 | } |
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| 200 | |
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[201] | 201 | catch {unset entries} |
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[120] | 202 | set _counter 0 |
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[13] | 203 | foreach ftail $flist { |
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[1694] | 204 | set fpath [file join $fdir examples $ftail] |
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[50] | 205 | |
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[1694] | 206 | foreach fname [glob -nocomplain $fpath] { |
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| 207 | if {[string equal $fname $newfile]} { |
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| 208 | continue |
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| 209 | } |
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| 210 | if {[file exists $fname]} { |
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| 211 | if {[catch {set obj [Rappture::library $fname]} result]} { |
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| 212 | puts stderr "WARNING: can't load example file \"$fname\"" |
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| 213 | puts stderr " $result" |
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| 214 | } else { |
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| 215 | set label [$obj get about.label] |
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| 216 | if {$label == ""} { |
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| 217 | set label "Example #[incr _counter]" |
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| 218 | } |
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[11] | 219 | |
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[1694] | 220 | # if this is new, add it to the label->file hash |
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| 221 | if {![info exists entries($label)]} { |
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| 222 | set entries($label) $obj |
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| 223 | set _label2file($label) [file tail $fname] |
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| 224 | } |
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[17] | 225 | |
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[1694] | 226 | # translate default file name => default label |
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| 227 | if {[string equal $defval [file tail $fname]]} { |
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| 228 | $_owner xml put $path.default $label |
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| 229 | } |
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| 230 | } |
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| 231 | } else { |
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| 232 | puts stderr "WARNING: missing example file \"$fname\"" |
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| 233 | } |
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| 234 | } |
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[11] | 235 | } |
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[201] | 236 | foreach label [lsort -dictionary [array names entries]] { |
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[1694] | 237 | $itk_component(combo) choices insert end $entries($label) $label |
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[201] | 238 | } |
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[11] | 239 | |
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[3512] | 240 | set _copyfrom [string trim [$_owner xml get $path.copy.from]] |
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[3647] | 241 | set _copyto [string trim [$_owner xml get $path.copy.to]] |
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[1225] | 242 | |
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[11] | 243 | # |
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| 244 | # Assign the default value to this widget, if there is one. |
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| 245 | # |
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[3512] | 246 | set str [string trim [$_owner xml get $path.default]] |
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[5679] | 247 | if { $str != "" } { |
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[2744] | 248 | bind $itk_component(hull) <Map> [itcl::code $this SetDefaultValue $str] |
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[2241] | 249 | } |
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[11] | 250 | } |
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| 251 | |
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| 252 | # ---------------------------------------------------------------------- |
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[640] | 253 | # DESTRUCTOR |
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| 254 | # ---------------------------------------------------------------------- |
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| 255 | itcl::body Rappture::Loader::destructor {} { |
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| 256 | # be sure to clean up entries for this widget's download paths |
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| 257 | foreach path $_dnpaths { |
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[1694] | 258 | catch {unset _dnpath2state($this-$path)} |
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[640] | 259 | } |
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| 260 | } |
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| 261 | |
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| 262 | # ---------------------------------------------------------------------- |
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[11] | 263 | # USAGE: value ?-check? ?<newval>? |
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| 264 | # |
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| 265 | # Clients use this to query/set the value for this widget. With |
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| 266 | # no args, it returns the current value for the widget. If the |
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| 267 | # <newval> is specified, it sets the value of the widget and |
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| 268 | # sends a <<Value>> event. If the -check flag is included, the |
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| 269 | # new value is not actually applied, but just checked for correctness. |
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| 270 | # ---------------------------------------------------------------------- |
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| 271 | itcl::body Rappture::Loader::value {args} { |
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| 272 | set onlycheck 0 |
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| 273 | set i [lsearch -exact $args -check] |
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| 274 | if {$i >= 0} { |
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[1694] | 275 | set onlycheck 1 |
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| 276 | set args [lreplace $args $i $i] |
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[11] | 277 | } |
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| 278 | |
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| 279 | if {[llength $args] == 1} { |
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[1694] | 280 | if {$onlycheck} { |
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| 281 | # someday we may add validation... |
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| 282 | return |
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| 283 | } |
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| 284 | set newval [lindex $args 0] |
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| 285 | $itk_component(combo) value $newval |
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| 286 | return $newval |
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[11] | 287 | |
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| 288 | } elseif {[llength $args] != 0} { |
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[1694] | 289 | error "wrong # args: should be \"value ?-check? ?newval?\"" |
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[11] | 290 | } |
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| 291 | |
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| 292 | # |
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| 293 | # Query the value and return. |
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| 294 | # |
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| 295 | return [$itk_component(combo) value] |
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| 296 | } |
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| 297 | |
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| 298 | # ---------------------------------------------------------------------- |
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| 299 | # USAGE: label |
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| 300 | # |
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| 301 | # Clients use this to query the label associated with this widget. |
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| 302 | # Reaches into the XML and pulls out the appropriate label string. |
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| 303 | # ---------------------------------------------------------------------- |
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| 304 | itcl::body Rappture::Loader::label {} { |
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[3513] | 305 | set label [string trim [$_owner xml get $_path.about.label]] |
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[11] | 306 | if {"" == $label} { |
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[1694] | 307 | set label "Example" |
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[11] | 308 | } |
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| 309 | return $label |
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| 310 | } |
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| 311 | |
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| 312 | # ---------------------------------------------------------------------- |
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| 313 | # USAGE: tooltip |
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| 314 | # |
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| 315 | # Clients use this to query the tooltip associated with this widget. |
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| 316 | # Reaches into the XML and pulls out the appropriate description |
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| 317 | # string. Returns the string that should be used with the |
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| 318 | # Rappture::Tooltip facility. |
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| 319 | # ---------------------------------------------------------------------- |
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| 320 | itcl::body Rappture::Loader::tooltip {} { |
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| 321 | # query tooltip on-demand based on current choice |
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| 322 | return "@[itcl::code $this _tooltip]" |
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| 323 | } |
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| 324 | |
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[2241] | 325 | # |
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| 326 | # SetDefaultValue -- |
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| 327 | # |
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[2744] | 328 | # Sets the designated default value for the loader. This must be done |
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| 329 | # after the entire application is assembled, otherwise the default |
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| 330 | # values set up by the loader will be overwritten by the various widgets |
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[5679] | 331 | # themselves when they try to set their default values. |
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[2241] | 332 | # |
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[2744] | 333 | # This is called from a <Map> event to the loader (combobox). This |
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| 334 | # will get trigger the first time the loader is displayed. The binding |
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| 335 | # is then removed. |
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[2241] | 336 | # |
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| 337 | itcl::body Rappture::Loader::SetDefaultValue { value } { |
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| 338 | after idle [itcl::code $this value $value] |
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| 339 | # We're done. Remove the binding. |
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| 340 | bind $itk_component(hull) <Map> {} |
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| 341 | } |
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| 342 | |
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[11] | 343 | # ---------------------------------------------------------------------- |
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| 344 | # USAGE: _newValue |
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| 345 | # |
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| 346 | # Invoked automatically whenever the value in the combobox changes. |
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| 347 | # Tries to load the selected example into the tool's data structure. |
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| 348 | # Sends a <<Value>> event to notify clients of the change. |
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| 349 | # ---------------------------------------------------------------------- |
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| 350 | itcl::body Rappture::Loader::_newValue {} { |
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| 351 | set newval [$itk_component(combo) value] |
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| 352 | set obj [$itk_component(combo) translate $newval] |
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[193] | 353 | if {$obj == "@upload"} { |
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[1694] | 354 | set tool [Rappture::Tool::resources -appname] |
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| 355 | Rappture::filexfer::upload \ |
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| 356 | $tool $_uppath [itcl::code $this _uploadValue] |
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[201] | 357 | |
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[1694] | 358 | # put the combobox back to its last value |
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| 359 | $itk_component(combo) component entry configure -state normal |
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| 360 | $itk_component(combo) component entry delete 0 end |
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| 361 | $itk_component(combo) component entry insert end $_lastlabel |
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| 362 | $itk_component(combo) component entry configure -state disabled |
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[201] | 363 | |
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| 364 | } elseif {$obj == "@download"} { |
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[1694] | 365 | if {[llength $_dnpaths] == 1} { |
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| 366 | _downloadValues |
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| 367 | } else { |
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| 368 | $itk_component(hull).download activate $itk_component(combo) below |
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| 369 | } |
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[201] | 370 | |
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[1694] | 371 | # put the combobox back to its last value |
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| 372 | $itk_component(combo) component entry configure -state normal |
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| 373 | $itk_component(combo) component entry delete 0 end |
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| 374 | $itk_component(combo) component entry insert end $_lastlabel |
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| 375 | $itk_component(combo) component entry configure -state disabled |
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[201] | 376 | |
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| 377 | } elseif {$obj == "---"} { |
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[1694] | 378 | # put the combobox back to its last value |
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| 379 | $itk_component(combo) component entry configure -state normal |
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| 380 | $itk_component(combo) component entry delete 0 end |
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| 381 | $itk_component(combo) component entry insert end $_lastlabel |
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| 382 | $itk_component(combo) component entry configure -state disabled |
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[193] | 383 | } elseif {$obj != "" && $itk_option(-tool) != ""} { |
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[1694] | 384 | if {("" != $_copyfrom) && ("" != $_copyto)} { |
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| 385 | $obj copy $_copyto from $_copyfrom |
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| 386 | } |
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| 387 | $_owner xml put $_path.file $_label2file($newval) |
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| 388 | $itk_option(-tool) load $obj |
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| 389 | set _lastlabel $newval |
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[11] | 390 | } |
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| 391 | |
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| 392 | event generate $itk_component(hull) <<Value>> |
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| 393 | } |
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| 394 | |
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| 395 | # ---------------------------------------------------------------------- |
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| 396 | # USAGE: _tooltip |
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| 397 | # |
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| 398 | # Returns the tooltip for this widget, given the current choice in |
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| 399 | # the selector. This is normally called by the Rappture::Tooltip |
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| 400 | # facility whenever it is about to pop up a tooltip for this widget. |
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| 401 | # ---------------------------------------------------------------------- |
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| 402 | itcl::body Rappture::Loader::_tooltip {} { |
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[3647] | 403 | set str [string trim [$_owner xml get $_path.about.description]] |
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[11] | 404 | |
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| 405 | # get the description for the current choice, if there is one |
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| 406 | set newval [$itk_component(combo) value] |
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| 407 | set obj [$itk_component(combo) translate $newval] |
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| 408 | if {$obj != ""} { |
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[1694] | 409 | if {$obj == "@upload"} { |
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| 410 | append str "\n\nUse this option to upload data from your desktop." |
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| 411 | } else { |
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| 412 | set label [$obj get about.label] |
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| 413 | if {[string length $label] > 0} { |
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| 414 | append str "\n\n$label" |
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| 415 | } |
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[193] | 416 | |
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[1694] | 417 | set desc [$obj get about.description] |
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| 418 | if {[string length $desc] > 0} { |
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| 419 | if {[string length $label] > 0} { |
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| 420 | append str ":\n" |
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| 421 | } else { |
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[6024] | 422 | append str "\n\n" |
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[1694] | 423 | } |
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| 424 | append str $desc |
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| 425 | } |
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| 426 | } |
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[11] | 427 | } |
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| 428 | return [string trim $str] |
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| 429 | } |
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| 430 | |
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| 431 | # ---------------------------------------------------------------------- |
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[3186] | 432 | # USAGE: _log |
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| 433 | # |
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| 434 | # Used internally to send info to the logging mechanism. Calls the |
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| 435 | # Rappture::Logger mechanism to log the change to this input. |
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| 436 | # ---------------------------------------------------------------------- |
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| 437 | itcl::body Rappture::Loader::_log {} { |
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| 438 | Rappture::Logger::log input $_path [$itk_component(combo) value] |
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| 439 | } |
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| 440 | |
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| 441 | # ---------------------------------------------------------------------- |
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[681] | 442 | # USAGE: _uploadValue ?<key> <value> <key> <value> ...? |
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[193] | 443 | # |
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| 444 | # Invoked automatically whenever the user has uploaded data from |
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| 445 | # the "Upload..." option. Takes the data value (passed as an |
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| 446 | # argument) and loads into the destination widget. |
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| 447 | # ---------------------------------------------------------------------- |
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[681] | 448 | itcl::body Rappture::Loader::_uploadValue {args} { |
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[213] | 449 | array set data $args |
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| 450 | |
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[640] | 451 | if {[info exists data(error)]} { |
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[1694] | 452 | Rappture::Tooltip::cue $itk_component(combo) $data(error) |
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[640] | 453 | } |
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| 454 | |
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[681] | 455 | if {[info exists data(path)] && [info exists data(data)]} { |
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[1694] | 456 | Rappture::Tooltip::cue hide ;# take down note about the popup window |
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| 457 | $itk_option(-tool) valuefor $data(path) $data(data) |
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[640] | 458 | |
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[1694] | 459 | $itk_component(combo) component entry configure -state normal |
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| 460 | $itk_component(combo) component entry delete 0 end |
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| 461 | $itk_component(combo) component entry insert end "Uploaded data" |
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| 462 | $itk_component(combo) component entry configure -state disabled |
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| 463 | set _lastlabel "Uploaded data" |
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[640] | 464 | } |
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| 465 | } |
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| 466 | |
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| 467 | # ---------------------------------------------------------------------- |
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| 468 | # USAGE: _downloadValues |
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| 469 | # |
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| 470 | # Used internally to download all values checked by the popup that |
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| 471 | # controls downloading. Sends the values for the various controls |
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| 472 | # out to the user by popping up separate browser windows. |
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| 473 | # ---------------------------------------------------------------------- |
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| 474 | itcl::body Rappture::Loader::_downloadValues {} { |
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| 475 | # take down the popup (in case it was posted) |
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| 476 | $itk_component(hull).download deactivate |
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| 477 | |
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| 478 | set mesg "" |
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[1077] | 479 | foreach path $_dnpaths { |
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[1694] | 480 | if {$_dnpath2state($this-$path)} { |
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| 481 | set info [$itk_option(-tool) valuefor $path] |
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| 482 | set mesg [Rappture::filexfer::download $info input.txt] |
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| 483 | if {"" != $mesg} { break } |
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| 484 | } |
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[213] | 485 | } |
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| 486 | |
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[640] | 487 | if {"" != $mesg} { |
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[1694] | 488 | Rappture::Tooltip::cue $itk_component(combo) $mesg |
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[640] | 489 | } |
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[193] | 490 | } |
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| 491 | |
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| 492 | # ---------------------------------------------------------------------- |
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[11] | 493 | # OPTION: -tool |
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| 494 | # ---------------------------------------------------------------------- |
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| 495 | itcl::configbody Rappture::Loader::tool { |
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| 496 | if {[catch {$itk_option(-tool) isa Rappture::Tool} valid] || !$valid} { |
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[1694] | 497 | error "object \"$itk_option(-tool)\" is not a Rappture Tool" |
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[11] | 498 | } |
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| 499 | } |
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[437] | 500 | |
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| 501 | # ---------------------------------------------------------------------- |
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| 502 | # CONFIGURATION OPTION: -state |
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| 503 | # ---------------------------------------------------------------------- |
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| 504 | itcl::configbody Rappture::Loader::state { |
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| 505 | set valid {normal disabled} |
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| 506 | if {[lsearch -exact $valid $itk_option(-state)] < 0} { |
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[1694] | 507 | error "bad value \"$itk_option(-state)\": should be [join $valid {, }]" |
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[437] | 508 | } |
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| 509 | $itk_component(combo) configure -state $itk_option(-state) |
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| 510 | } |
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