[3330] | 1 | # -*- mode: tcl; indent-tabs-mode: nil -*- |
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[1140] | 2 | |
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[11] | 3 | # ---------------------------------------------------------------------- |
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| 4 | # COMPONENT: Panes - creates a series of adjustable panes |
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| 5 | # |
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| 6 | # This is a simple paned window with an adjustable sash. |
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| 7 | # the same quantity, but for various ranges of input values. |
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| 8 | # It also manages the controls to select and visualize the data. |
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| 9 | # ====================================================================== |
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| 10 | # AUTHOR: Michael McLennan, Purdue University |
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[3177] | 11 | # Copyright (c) 2004-2012 HUBzero Foundation, LLC |
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[115] | 12 | # |
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| 13 | # See the file "license.terms" for information on usage and |
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| 14 | # redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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[11] | 15 | # ====================================================================== |
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| 16 | package require Itk |
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| 17 | |
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| 18 | option add *Panes.width 3i widgetDefault |
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| 19 | option add *Panes.height 3i widgetDefault |
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[413] | 20 | option add *Panes.sashRelief sunken widgetDefault |
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| 21 | option add *Panes.sashWidth 2 widgetDefault |
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| 22 | option add *Panes.sashPadding 4 widgetDefault |
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[11] | 23 | option add *Panes.sashCursor sb_v_double_arrow |
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| 24 | |
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| 25 | itcl::class Rappture::Panes { |
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| 26 | inherit itk::Widget |
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| 27 | |
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| 28 | itk_option define -sashcursor sashCursor SashCursor "" |
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[413] | 29 | itk_option define -sashrelief sashRelief SashRelief "" |
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| 30 | itk_option define -sashwidth sashWidth SashWidth 0 |
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| 31 | itk_option define -sashpadding sashPadding SashPadding 0 |
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[11] | 32 | |
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| 33 | constructor {args} { # defined below } |
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| 34 | |
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| 35 | public method insert {pos args} |
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| 36 | public method pane {pos} |
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[785] | 37 | public method visibility {pos {newval ""}} |
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[11] | 38 | public method fraction {pos {newval ""}} |
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[428] | 39 | public method hilite {state sash} |
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[11] | 40 | |
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| 41 | protected method _grab {pane X Y} |
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| 42 | protected method _drag {pane X Y} |
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| 43 | protected method _drop {pane X Y} |
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| 44 | protected method _fixLayout {args} |
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[413] | 45 | protected method _fixSashes {args} |
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[11] | 46 | |
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| 47 | private variable _dispatcher "" ;# dispatcher for !events |
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| 48 | private variable _panes "" ;# list of pane frames |
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[785] | 49 | private variable _visibility "" ;# list of visibilities for panes |
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[11] | 50 | private variable _counter 0 ;# counter for auto-generated names |
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[785] | 51 | private variable _frac 0.0 ;# list of fractions |
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[2744] | 52 | public variable orientation "vertical" |
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[11] | 53 | } |
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| 54 | |
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| 55 | itk::usual Panes { |
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| 56 | keep -background -cursor |
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| 57 | } |
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| 58 | |
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| 59 | # ---------------------------------------------------------------------- |
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| 60 | # CONSTRUCTOR |
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| 61 | # ---------------------------------------------------------------------- |
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| 62 | itcl::body Rappture::Panes::constructor {args} { |
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| 63 | itk_option add hull.width hull.height |
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| 64 | |
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| 65 | # create a dispatcher for events |
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| 66 | Rappture::dispatcher _dispatcher |
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| 67 | $_dispatcher register !layout |
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| 68 | $_dispatcher dispatch $this !layout [itcl::code $this _fixLayout] |
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[413] | 69 | $_dispatcher register !sashes |
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| 70 | $_dispatcher dispatch $this !sashes [itcl::code $this _fixSashes] |
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[11] | 71 | |
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| 72 | # fix the layout whenever the window size changes |
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| 73 | bind Panes <Configure> [itcl::code %W _fixLayout] |
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| 74 | |
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| 75 | set pname "pane[incr _counter]" |
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| 76 | itk_component add $pname { |
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[1929] | 77 | frame $itk_interior.$pname |
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[11] | 78 | } |
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| 79 | |
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| 80 | lappend _panes $pname |
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[785] | 81 | lappend _visibility 1 |
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| 82 | set _frac 0.5 |
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[11] | 83 | |
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| 84 | eval itk_initialize $args |
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| 85 | |
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| 86 | # make sure we fix up the layout at some point |
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| 87 | $_dispatcher event -idle !layout |
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| 88 | } |
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| 89 | |
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| 90 | # ---------------------------------------------------------------------- |
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| 91 | # USAGE: insert <pos> ?-fraction f? |
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| 92 | # |
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| 93 | # Adds a new page to this widget at the given position <pos>. |
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| 94 | # ---------------------------------------------------------------------- |
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| 95 | itcl::body Rappture::Panes::insert {pos args} { |
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| 96 | Rappture::getopts args params { |
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[1929] | 97 | value -fraction 0.5 |
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[11] | 98 | } |
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| 99 | if {[llength $args] > 0} { |
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[1929] | 100 | error "wrong # args: should be \"insert pos ?-fraction f?\"" |
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[11] | 101 | } |
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| 102 | |
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| 103 | set pname "pane[incr _counter]" |
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| 104 | set sash "${pname}sash" |
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| 105 | itk_component add $sash { |
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[1929] | 106 | frame $itk_interior.$sash |
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[11] | 107 | } { |
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[1929] | 108 | usual |
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| 109 | rename -cursor -sashcursor sashCursor SashCursor |
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[11] | 110 | } |
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[428] | 111 | bind $itk_component($sash) <Enter> [itcl::code $this hilite on $sash] |
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| 112 | bind $itk_component($sash) <Leave> [itcl::code $this hilite off $sash] |
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[11] | 113 | |
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| 114 | itk_component add ${sash}ridge { |
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[1929] | 115 | frame $itk_component($sash).ridge |
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[11] | 116 | } { |
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[1929] | 117 | usual |
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| 118 | rename -cursor -sashcursor sashCursor SashCursor |
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| 119 | rename -relief -sashrelief sashRelief SashRelief |
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| 120 | ignore -borderwidth |
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[11] | 121 | } |
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[1373] | 122 | if { $orientation == "vertical" } { |
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[1929] | 123 | pack $itk_component(${sash}ridge) -fill x |
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[1373] | 124 | } else { |
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[1929] | 125 | pack $itk_component(${sash}ridge) -fill y -side left |
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[1373] | 126 | } |
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[11] | 127 | foreach comp [list $sash ${sash}ridge] { |
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[1929] | 128 | bind $itk_component($comp) <ButtonPress-1> \ |
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| 129 | [itcl::code $this _grab $pname %X %Y] |
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| 130 | bind $itk_component($comp) <B1-Motion> \ |
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| 131 | [itcl::code $this _drag $pname %X %Y] |
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| 132 | bind $itk_component($comp) <ButtonRelease-1> \ |
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| 133 | [itcl::code $this _drop $pname %X %Y] |
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[11] | 134 | } |
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| 135 | |
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| 136 | |
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| 137 | itk_component add $pname { |
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[1929] | 138 | frame $itk_interior.$pname |
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[11] | 139 | } |
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[785] | 140 | set _panes [linsert $_panes $pos $pname] |
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| 141 | set _visibility [linsert $_visibility $pos 1] |
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| 142 | set _frac [linsert $_frac $pos $params(-fraction)] |
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[11] | 143 | |
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[413] | 144 | # fix sash characteristics |
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| 145 | $_dispatcher event -idle !sashes |
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| 146 | |
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[11] | 147 | # make sure we fix up the layout at some point |
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| 148 | $_dispatcher event -idle !layout |
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| 149 | |
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| 150 | return $itk_component($pname) |
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| 151 | } |
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| 152 | |
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| 153 | # ---------------------------------------------------------------------- |
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| 154 | # USAGE: pane <pos> |
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| 155 | # |
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| 156 | # Returns the frame representing the pane at position <pos>. |
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| 157 | # ---------------------------------------------------------------------- |
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| 158 | itcl::body Rappture::Panes::pane {pos} { |
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| 159 | set pname [lindex $_panes $pos] |
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| 160 | if {[info exists itk_component($pname)]} { |
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[1929] | 161 | return $itk_component($pname) |
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[11] | 162 | } |
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| 163 | return "" |
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| 164 | } |
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| 165 | |
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| 166 | # ---------------------------------------------------------------------- |
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[785] | 167 | # USAGE: visibility <pos> ?<newval>? |
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| 168 | # |
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| 169 | # Clients use this to get/set the visibility of the pane at position |
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| 170 | # <pos>. |
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| 171 | # ---------------------------------------------------------------------- |
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| 172 | itcl::body Rappture::Panes::visibility {pos {newval ""}} { |
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| 173 | if {"" == $newval} { |
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[1929] | 174 | return [lindex $_visibility $pos] |
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[785] | 175 | } |
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| 176 | if {![string is boolean $newval]} { |
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[1929] | 177 | error "bad value \"$newval\": should be boolean" |
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[785] | 178 | } |
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| 179 | if {$pos == "end" || ($pos >= 0 && $pos < [llength $_visibility])} { |
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[1929] | 180 | set _visibility [lreplace $_visibility $pos $pos [expr {$newval}]] |
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| 181 | $_dispatcher event -idle !layout |
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[785] | 182 | } else { |
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[1929] | 183 | error "bad index \"$pos\": out of range" |
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[785] | 184 | } |
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| 185 | } |
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| 186 | |
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| 187 | # ---------------------------------------------------------------------- |
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[11] | 188 | # USAGE: fraction <pos> ?<newval>? |
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| 189 | # |
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| 190 | # Clients use this to get/set the fraction of real estate associated |
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| 191 | # with the pane at position <pos>. |
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| 192 | # ---------------------------------------------------------------------- |
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| 193 | itcl::body Rappture::Panes::fraction {pos {newval ""}} { |
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| 194 | if {"" == $newval} { |
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[1929] | 195 | return [lindex $_frac $pos] |
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[11] | 196 | } |
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| 197 | if {![string is double $newval]} { |
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[1929] | 198 | error "bad value \"$newval\": should be fraction 0-1" |
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[11] | 199 | } |
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| 200 | if {$pos == "end" || ($pos >= 0 && $pos < [llength $_frac])} { |
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[1929] | 201 | set len [llength $_frac] |
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| 202 | set _frac [lreplace $_frac $pos $pos xxx] |
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| 203 | set total 0 |
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| 204 | foreach f $_frac { |
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| 205 | if {"xxx" != $f} { |
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| 206 | set total [expr {$total+$f}] |
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| 207 | } |
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| 208 | } |
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| 209 | for {set i 0} {$i < $len} {incr i} { |
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| 210 | set f [lindex $_frac $i] |
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| 211 | if {"xxx" == $f} { |
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| 212 | set f $newval |
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| 213 | } else { |
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| 214 | set f [expr {$f/$total - $newval/double($len-1)}] |
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| 215 | } |
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| 216 | set _frac [lreplace $_frac $i $i $f] |
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| 217 | } |
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| 218 | $_dispatcher event -idle !layout |
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[11] | 219 | } else { |
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[1929] | 220 | error "bad index \"$pos\": out of range" |
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[11] | 221 | } |
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| 222 | } |
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| 223 | |
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| 224 | # ---------------------------------------------------------------------- |
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[428] | 225 | # USAGE: hilite <state> <sash> |
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| 226 | # |
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| 227 | # Invoked automatically whenever the user touches a sash. Highlights |
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| 228 | # the sash by changing its size or relief. |
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| 229 | # ---------------------------------------------------------------------- |
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| 230 | itcl::body Rappture::Panes::hilite {state sash} { |
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| 231 | switch -- $itk_option(-sashrelief) { |
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| 232 | sunken { |
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[1929] | 233 | if {$state} { |
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| 234 | $itk_component(${sash}ridge) configure -relief raised |
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| 235 | } else { |
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| 236 | $itk_component(${sash}ridge) configure -relief sunken |
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| 237 | } |
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[428] | 238 | } |
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| 239 | raised { |
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[1929] | 240 | if {$state} { |
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| 241 | $itk_component(${sash}ridge) configure -relief sunken |
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| 242 | } else { |
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| 243 | $itk_component(${sash}ridge) configure -relief raised |
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| 244 | } |
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[428] | 245 | } |
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| 246 | solid { |
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[1929] | 247 | if {$state} { |
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| 248 | $itk_component($sash) configure -background black |
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| 249 | } else { |
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| 250 | $itk_component($sash) configure \ |
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| 251 | -background $itk_option(-background) |
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| 252 | } |
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[428] | 253 | } |
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| 254 | } |
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| 255 | } |
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| 256 | |
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| 257 | # ---------------------------------------------------------------------- |
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[11] | 258 | # USAGE: _grab <pane> <X> <Y> |
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| 259 | # |
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| 260 | # Invoked automatically when the user clicks on a sash, to initiate |
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| 261 | # movement. |
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| 262 | # ---------------------------------------------------------------------- |
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| 263 | itcl::body Rappture::Panes::_grab {pname X Y} { |
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| 264 | } |
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| 265 | |
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| 266 | # ---------------------------------------------------------------------- |
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| 267 | # USAGE: _drag <pane> <X> <Y> |
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| 268 | # |
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| 269 | # Invoked automatically as the user drags a sash, to resize the panes. |
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| 270 | # ---------------------------------------------------------------------- |
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| 271 | itcl::body Rappture::Panes::_drag {pname X Y} { |
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[1373] | 272 | if { $orientation == "vertical" } { |
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[1929] | 273 | set realY [expr {$Y-[winfo rooty $itk_component(hull)]}] |
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| 274 | set Ymax [winfo height $itk_component(hull)] |
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| 275 | set frac [expr double($realY)/$Ymax] |
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[1373] | 276 | } else { |
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[1929] | 277 | set realX [expr {$X-[winfo rootx $itk_component(hull)]}] |
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| 278 | set Xmax [winfo width $itk_component(hull)] |
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| 279 | set frac [expr double($realX)/$Xmax] |
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[1373] | 280 | } |
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[11] | 281 | if {$frac < 0.05} { |
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[1929] | 282 | set frac 0.05 |
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[11] | 283 | } |
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| 284 | if {$frac > 0.95} { |
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[1929] | 285 | set frac 0.95 |
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[11] | 286 | } |
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[785] | 287 | if {[llength $_frac] == 2} { |
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[1929] | 288 | set _frac [list $frac [expr {1-$frac}]] |
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[785] | 289 | } else { |
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[1929] | 290 | set i [expr {[lsearch $_panes $pname]-1}] |
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| 291 | if {$i >= 0} { |
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| 292 | set _frac [lreplace $_frac $i $i $frac] |
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| 293 | } |
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[785] | 294 | } |
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[11] | 295 | _fixLayout |
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| 296 | |
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| 297 | return $frac |
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| 298 | } |
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| 299 | |
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| 300 | # ---------------------------------------------------------------------- |
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| 301 | # USAGE: _drop <pane> <X> <Y> |
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| 302 | # |
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| 303 | # Invoked automatically as the user drops a sash, to resize the panes. |
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| 304 | # ---------------------------------------------------------------------- |
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| 305 | itcl::body Rappture::Panes::_drop {pname X Y} { |
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| 306 | set frac [_drag $pname $X $Y] |
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| 307 | } |
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| 308 | |
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| 309 | # ---------------------------------------------------------------------- |
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| 310 | # USAGE: _fixLayout ?<eventArgs>...? |
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| 311 | # |
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| 312 | # Used internally to update the layout of panes whenever a new pane |
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| 313 | # is added or a sash is moved. |
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| 314 | # ---------------------------------------------------------------------- |
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| 315 | itcl::body Rappture::Panes::_fixLayout {args} { |
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[1373] | 316 | if { $orientation == "vertical" } { |
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[1929] | 317 | set h [winfo height $itk_component(hull)] |
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[785] | 318 | |
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[1929] | 319 | set plist "" |
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| 320 | set flist "" |
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| 321 | foreach p $_panes f $_frac v $_visibility { |
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| 322 | set sash ${p}sash |
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| 323 | if {$v} { |
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| 324 | # this pane is visible -- make room for it |
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| 325 | lappend plist $p |
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| 326 | lappend flist $f |
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| 327 | if {[info exists itk_component($sash)]} { |
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| 328 | set h [expr {$h - [winfo reqheight $itk_component($sash)]}] |
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| 329 | } |
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| 330 | } else { |
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| 331 | # this pane is not visible -- remove sash |
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| 332 | if {[info exists itk_component($sash)]} { |
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| 333 | place forget $itk_component($sash) |
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| 334 | } |
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| 335 | place forget $itk_component($p) |
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| 336 | } |
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| 337 | } |
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| 338 | |
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| 339 | # normalize the fractions so they add up to 1 |
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| 340 | set total 0 |
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| 341 | foreach f $flist { set total [expr {$total+$f}] } |
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| 342 | set newflist "" |
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| 343 | foreach f $flist { |
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| 344 | lappend newflist [expr {double($f)/$total}] |
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| 345 | } |
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| 346 | set flist $newflist |
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| 347 | |
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| 348 | # lay out the various panes |
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| 349 | set y 0 |
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| 350 | foreach p $plist f $flist { |
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| 351 | set sash ${p}sash |
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| 352 | if {[info exists itk_component($sash)]} { |
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| 353 | set sh [winfo reqheight $itk_component($sash)] |
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| 354 | place $itk_component($sash) -y $y -relx 0.5 -anchor n \ |
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| 355 | -relwidth 1.0 -height $sh |
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| 356 | set y [expr {$y + $sh}] |
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| 357 | } |
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| 358 | |
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| 359 | set ph [expr {$h*$f}] |
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| 360 | place $itk_component($p) -y $y -relx 0.5 -anchor n \ |
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| 361 | -relwidth 1.0 -height $ph |
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| 362 | set y [expr {$y + $ph}] |
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| 363 | } |
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[1373] | 364 | } else { |
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[1929] | 365 | set w [winfo width $itk_component(hull)] |
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[11] | 366 | |
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[1929] | 367 | set plist "" |
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| 368 | set flist "" |
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| 369 | foreach p $_panes f $_frac v $_visibility { |
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| 370 | set sash ${p}sash |
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| 371 | if {$v} { |
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| 372 | # this pane is visible -- make room for it |
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| 373 | lappend plist $p |
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| 374 | lappend flist $f |
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| 375 | if {[info exists itk_component($sash)]} { |
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| 376 | set w [expr {$w - [winfo reqwidth $itk_component($sash)]}] |
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| 377 | } |
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| 378 | } else { |
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| 379 | # this pane is not visible -- remove sash |
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| 380 | if {[info exists itk_component($sash)]} { |
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| 381 | place forget $itk_component($sash) |
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| 382 | } |
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| 383 | place forget $itk_component($p) |
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| 384 | } |
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| 385 | } |
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| 386 | |
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| 387 | # normalize the fractions so they add up to 1 |
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| 388 | set total 0 |
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| 389 | foreach f $flist { set total [expr {$total+$f}] } |
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| 390 | set newflist "" |
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| 391 | foreach f $flist { |
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| 392 | lappend newflist [expr {double($f)/$total}] |
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| 393 | } |
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| 394 | set flist $newflist |
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| 395 | |
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| 396 | # lay out the various panes |
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| 397 | set x 0 |
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| 398 | foreach p $plist f $flist { |
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| 399 | set sash ${p}sash |
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| 400 | if {[info exists itk_component($sash)]} { |
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| 401 | set sw [winfo reqwidth $itk_component($sash)] |
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| 402 | place $itk_component($sash) -x $x -rely 0.5 -anchor w \ |
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| 403 | -relheight 1.0 -width $sw |
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| 404 | set x [expr {$x + $sw}] |
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| 405 | } |
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| 406 | |
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| 407 | set pw [expr {$w*$f}] |
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| 408 | place $itk_component($p) -x $x -rely 0.5 -anchor w \ |
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| 409 | -relheight 1.0 -width $pw |
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| 410 | set x [expr {$x + $pw}] |
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| 411 | } |
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[2744] | 412 | } |
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[11] | 413 | } |
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[413] | 414 | |
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| 415 | # ---------------------------------------------------------------------- |
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| 416 | # USAGE: _fixSashes |
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| 417 | # |
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| 418 | # Used internally to fix the appearance of sashes whenever a new |
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| 419 | # sash appears or the controlling configuration options change. |
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| 420 | # ---------------------------------------------------------------------- |
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| 421 | itcl::body Rappture::Panes::_fixSashes {args} { |
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[1373] | 422 | if { $orientation == "vertical" } { |
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[1929] | 423 | set ht [winfo pixels $itk_component(hull) $itk_option(-sashwidth)] |
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| 424 | set bd [expr {$ht/2}] |
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| 425 | foreach pane $_panes { |
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| 426 | set sash "${pane}sashridge" |
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| 427 | if {[info exists itk_component($sash)]} { |
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| 428 | $itk_component($sash) configure -height $ht -borderwidth $bd |
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| 429 | if {$itk_option(-sashrelief) == "solid"} { |
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| 430 | $itk_component($sash) configure -background black |
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| 431 | } else { |
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| 432 | $itk_component($sash) configure \ |
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| 433 | -background $itk_option(-background) |
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| 434 | } |
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| 435 | pack $itk_component($sash) -pady $itk_option(-sashpadding) |
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| 436 | } |
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| 437 | } |
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[1373] | 438 | } else { |
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[1929] | 439 | set w [winfo pixels $itk_component(hull) $itk_option(-sashwidth)] |
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| 440 | set bd [expr {$w/2}] |
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| 441 | foreach pane $_panes { |
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| 442 | set sash "${pane}sashridge" |
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| 443 | if {[info exists itk_component($sash)]} { |
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| 444 | $itk_component($sash) configure -width $w -borderwidth $bd |
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| 445 | if {$itk_option(-sashrelief) == "solid"} { |
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| 446 | $itk_component($sash) configure -background black |
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| 447 | } else { |
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| 448 | $itk_component($sash) configure \ |
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| 449 | -background $itk_option(-background) |
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| 450 | } |
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| 451 | pack $itk_component($sash) -padx $itk_option(-sashpadding) \ |
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| 452 | -side left |
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| 453 | } |
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| 454 | } |
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[413] | 455 | } |
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| 456 | } |
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| 457 | |
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| 458 | # ---------------------------------------------------------------------- |
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| 459 | # CONFIGURATION OPTION: -sashrelief |
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| 460 | # ---------------------------------------------------------------------- |
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| 461 | itcl::configbody Rappture::Panes::sashrelief { |
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| 462 | $_dispatcher event -idle !sashes |
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| 463 | } |
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| 464 | |
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| 465 | # ---------------------------------------------------------------------- |
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| 466 | # CONFIGURATION OPTION: -sashwidth |
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| 467 | # ---------------------------------------------------------------------- |
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| 468 | itcl::configbody Rappture::Panes::sashwidth { |
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| 469 | $_dispatcher event -idle !sashes |
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| 470 | } |
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| 471 | |
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| 472 | # ---------------------------------------------------------------------- |
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| 473 | # CONFIGURATION OPTION: -sashpadding |
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| 474 | # ---------------------------------------------------------------------- |
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| 475 | itcl::configbody Rappture::Panes::sashpadding { |
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| 476 | $_dispatcher event -idle !sashes |
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| 477 | } |
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