[1140] | 1 | |
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[11] | 2 | # ---------------------------------------------------------------------- |
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| 3 | # COMPONENT: Panes - creates a series of adjustable panes |
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| 4 | # |
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| 5 | # This is a simple paned window with an adjustable sash. |
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| 6 | # the same quantity, but for various ranges of input values. |
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| 7 | # It also manages the controls to select and visualize the data. |
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| 8 | # ====================================================================== |
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| 9 | # AUTHOR: Michael McLennan, Purdue University |
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[115] | 10 | # Copyright (c) 2004-2005 Purdue Research Foundation |
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| 11 | # |
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| 12 | # See the file "license.terms" for information on usage and |
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| 13 | # redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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[11] | 14 | # ====================================================================== |
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| 15 | package require Itk |
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| 16 | |
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| 17 | option add *Panes.width 3i widgetDefault |
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| 18 | option add *Panes.height 3i widgetDefault |
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[413] | 19 | option add *Panes.sashRelief sunken widgetDefault |
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| 20 | option add *Panes.sashWidth 2 widgetDefault |
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| 21 | option add *Panes.sashPadding 4 widgetDefault |
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[11] | 22 | option add *Panes.sashCursor sb_v_double_arrow |
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| 23 | |
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| 24 | itcl::class Rappture::Panes { |
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| 25 | inherit itk::Widget |
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| 26 | |
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| 27 | itk_option define -sashcursor sashCursor SashCursor "" |
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[413] | 28 | itk_option define -sashrelief sashRelief SashRelief "" |
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| 29 | itk_option define -sashwidth sashWidth SashWidth 0 |
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| 30 | itk_option define -sashpadding sashPadding SashPadding 0 |
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[11] | 31 | |
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| 32 | constructor {args} { # defined below } |
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| 33 | |
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| 34 | public method insert {pos args} |
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| 35 | public method pane {pos} |
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[785] | 36 | public method visibility {pos {newval ""}} |
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[11] | 37 | public method fraction {pos {newval ""}} |
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[428] | 38 | public method hilite {state sash} |
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[11] | 39 | |
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| 40 | protected method _grab {pane X Y} |
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| 41 | protected method _drag {pane X Y} |
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| 42 | protected method _drop {pane X Y} |
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| 43 | protected method _fixLayout {args} |
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[413] | 44 | protected method _fixSashes {args} |
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[11] | 45 | |
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| 46 | private variable _dispatcher "" ;# dispatcher for !events |
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| 47 | private variable _panes "" ;# list of pane frames |
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[785] | 48 | private variable _visibility "" ;# list of visibilities for panes |
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[11] | 49 | private variable _counter 0 ;# counter for auto-generated names |
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[785] | 50 | private variable _frac 0.0 ;# list of fractions |
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[1373] | 51 | public variable orientation "vertical" |
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[11] | 52 | } |
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| 53 | |
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| 54 | itk::usual Panes { |
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| 55 | keep -background -cursor |
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| 56 | } |
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| 57 | |
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| 58 | # ---------------------------------------------------------------------- |
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| 59 | # CONSTRUCTOR |
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| 60 | # ---------------------------------------------------------------------- |
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| 61 | itcl::body Rappture::Panes::constructor {args} { |
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| 62 | itk_option add hull.width hull.height |
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| 63 | |
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| 64 | # create a dispatcher for events |
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| 65 | Rappture::dispatcher _dispatcher |
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| 66 | $_dispatcher register !layout |
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| 67 | $_dispatcher dispatch $this !layout [itcl::code $this _fixLayout] |
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[413] | 68 | $_dispatcher register !sashes |
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| 69 | $_dispatcher dispatch $this !sashes [itcl::code $this _fixSashes] |
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[11] | 70 | |
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| 71 | # fix the layout whenever the window size changes |
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| 72 | bind Panes <Configure> [itcl::code %W _fixLayout] |
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| 73 | |
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| 74 | set pname "pane[incr _counter]" |
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| 75 | itk_component add $pname { |
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[1923] | 76 | frame $itk_interior.$pname |
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[11] | 77 | } |
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| 78 | |
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| 79 | lappend _panes $pname |
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[785] | 80 | lappend _visibility 1 |
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| 81 | set _frac 0.5 |
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[11] | 82 | |
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| 83 | eval itk_initialize $args |
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| 84 | |
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| 85 | # make sure we fix up the layout at some point |
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| 86 | $_dispatcher event -idle !layout |
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| 87 | } |
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| 88 | |
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| 89 | # ---------------------------------------------------------------------- |
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| 90 | # USAGE: insert <pos> ?-fraction f? |
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| 91 | # |
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| 92 | # Adds a new page to this widget at the given position <pos>. |
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| 93 | # ---------------------------------------------------------------------- |
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| 94 | itcl::body Rappture::Panes::insert {pos args} { |
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| 95 | Rappture::getopts args params { |
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[1923] | 96 | value -fraction 0.5 |
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[11] | 97 | } |
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| 98 | if {[llength $args] > 0} { |
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[1923] | 99 | error "wrong # args: should be \"insert pos ?-fraction f?\"" |
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[11] | 100 | } |
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| 101 | |
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| 102 | set pname "pane[incr _counter]" |
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| 103 | set sash "${pname}sash" |
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| 104 | itk_component add $sash { |
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[1923] | 105 | frame $itk_interior.$sash |
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[11] | 106 | } { |
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[1923] | 107 | usual |
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| 108 | rename -cursor -sashcursor sashCursor SashCursor |
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[11] | 109 | } |
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[428] | 110 | bind $itk_component($sash) <Enter> [itcl::code $this hilite on $sash] |
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| 111 | bind $itk_component($sash) <Leave> [itcl::code $this hilite off $sash] |
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[11] | 112 | |
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| 113 | itk_component add ${sash}ridge { |
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[1923] | 114 | frame $itk_component($sash).ridge |
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[11] | 115 | } { |
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[1923] | 116 | usual |
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| 117 | rename -cursor -sashcursor sashCursor SashCursor |
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| 118 | rename -relief -sashrelief sashRelief SashRelief |
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| 119 | ignore -borderwidth |
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[11] | 120 | } |
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[1373] | 121 | if { $orientation == "vertical" } { |
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[1923] | 122 | pack $itk_component(${sash}ridge) -fill x |
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[1373] | 123 | } else { |
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[1923] | 124 | pack $itk_component(${sash}ridge) -fill y -side left |
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[1373] | 125 | } |
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[11] | 126 | foreach comp [list $sash ${sash}ridge] { |
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[1923] | 127 | bind $itk_component($comp) <ButtonPress-1> \ |
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| 128 | [itcl::code $this _grab $pname %X %Y] |
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| 129 | bind $itk_component($comp) <B1-Motion> \ |
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| 130 | [itcl::code $this _drag $pname %X %Y] |
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| 131 | bind $itk_component($comp) <ButtonRelease-1> \ |
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| 132 | [itcl::code $this _drop $pname %X %Y] |
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[11] | 133 | } |
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| 134 | |
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| 135 | |
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| 136 | itk_component add $pname { |
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[1923] | 137 | frame $itk_interior.$pname |
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[11] | 138 | } |
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[785] | 139 | set _panes [linsert $_panes $pos $pname] |
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| 140 | set _visibility [linsert $_visibility $pos 1] |
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| 141 | set _frac [linsert $_frac $pos $params(-fraction)] |
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[11] | 142 | |
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[413] | 143 | # fix sash characteristics |
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| 144 | $_dispatcher event -idle !sashes |
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| 145 | |
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[11] | 146 | # make sure we fix up the layout at some point |
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| 147 | $_dispatcher event -idle !layout |
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| 148 | |
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| 149 | return $itk_component($pname) |
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| 150 | } |
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| 151 | |
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| 152 | # ---------------------------------------------------------------------- |
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| 153 | # USAGE: pane <pos> |
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| 154 | # |
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| 155 | # Returns the frame representing the pane at position <pos>. |
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| 156 | # ---------------------------------------------------------------------- |
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| 157 | itcl::body Rappture::Panes::pane {pos} { |
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| 158 | set pname [lindex $_panes $pos] |
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| 159 | if {[info exists itk_component($pname)]} { |
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[1923] | 160 | return $itk_component($pname) |
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[11] | 161 | } |
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| 162 | return "" |
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| 163 | } |
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| 164 | |
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| 165 | # ---------------------------------------------------------------------- |
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[785] | 166 | # USAGE: visibility <pos> ?<newval>? |
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| 167 | # |
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| 168 | # Clients use this to get/set the visibility of the pane at position |
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| 169 | # <pos>. |
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| 170 | # ---------------------------------------------------------------------- |
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| 171 | itcl::body Rappture::Panes::visibility {pos {newval ""}} { |
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| 172 | if {"" == $newval} { |
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[1923] | 173 | return [lindex $_visibility $pos] |
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[785] | 174 | } |
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| 175 | if {![string is boolean $newval]} { |
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[1923] | 176 | error "bad value \"$newval\": should be boolean" |
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[785] | 177 | } |
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| 178 | if {$pos == "end" || ($pos >= 0 && $pos < [llength $_visibility])} { |
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[1923] | 179 | set _visibility [lreplace $_visibility $pos $pos [expr {$newval}]] |
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| 180 | $_dispatcher event -idle !layout |
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[785] | 181 | } else { |
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[1923] | 182 | error "bad index \"$pos\": out of range" |
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[785] | 183 | } |
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| 184 | } |
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| 185 | |
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| 186 | # ---------------------------------------------------------------------- |
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[11] | 187 | # USAGE: fraction <pos> ?<newval>? |
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| 188 | # |
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| 189 | # Clients use this to get/set the fraction of real estate associated |
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| 190 | # with the pane at position <pos>. |
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| 191 | # ---------------------------------------------------------------------- |
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| 192 | itcl::body Rappture::Panes::fraction {pos {newval ""}} { |
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| 193 | if {"" == $newval} { |
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[1923] | 194 | return [lindex $_frac $pos] |
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[11] | 195 | } |
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| 196 | if {![string is double $newval]} { |
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[1923] | 197 | error "bad value \"$newval\": should be fraction 0-1" |
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[11] | 198 | } |
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| 199 | if {$pos == "end" || ($pos >= 0 && $pos < [llength $_frac])} { |
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[1923] | 200 | set len [llength $_frac] |
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| 201 | set _frac [lreplace $_frac $pos $pos xxx] |
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| 202 | set total 0 |
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| 203 | foreach f $_frac { |
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| 204 | if {"xxx" != $f} { |
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| 205 | set total [expr {$total+$f}] |
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| 206 | } |
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| 207 | } |
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| 208 | for {set i 0} {$i < $len} {incr i} { |
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| 209 | set f [lindex $_frac $i] |
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| 210 | if {"xxx" == $f} { |
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| 211 | set f $newval |
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| 212 | } else { |
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| 213 | set f [expr {$f/$total - $newval/double($len-1)}] |
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| 214 | } |
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| 215 | set _frac [lreplace $_frac $i $i $f] |
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| 216 | } |
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| 217 | $_dispatcher event -idle !layout |
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[11] | 218 | } else { |
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[1923] | 219 | error "bad index \"$pos\": out of range" |
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[11] | 220 | } |
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| 221 | } |
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| 222 | |
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| 223 | # ---------------------------------------------------------------------- |
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[428] | 224 | # USAGE: hilite <state> <sash> |
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| 225 | # |
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| 226 | # Invoked automatically whenever the user touches a sash. Highlights |
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| 227 | # the sash by changing its size or relief. |
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| 228 | # ---------------------------------------------------------------------- |
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| 229 | itcl::body Rappture::Panes::hilite {state sash} { |
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| 230 | switch -- $itk_option(-sashrelief) { |
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| 231 | sunken { |
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[1923] | 232 | if {$state} { |
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| 233 | $itk_component(${sash}ridge) configure -relief raised |
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| 234 | } else { |
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| 235 | $itk_component(${sash}ridge) configure -relief sunken |
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| 236 | } |
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[428] | 237 | } |
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| 238 | raised { |
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[1923] | 239 | if {$state} { |
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| 240 | $itk_component(${sash}ridge) configure -relief sunken |
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| 241 | } else { |
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| 242 | $itk_component(${sash}ridge) configure -relief raised |
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| 243 | } |
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[428] | 244 | } |
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| 245 | solid { |
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[1923] | 246 | if {$state} { |
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| 247 | $itk_component($sash) configure -background black |
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| 248 | } else { |
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| 249 | $itk_component($sash) configure \ |
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| 250 | -background $itk_option(-background) |
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| 251 | } |
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[428] | 252 | } |
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| 253 | } |
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| 254 | } |
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| 255 | |
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| 256 | # ---------------------------------------------------------------------- |
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[11] | 257 | # USAGE: _grab <pane> <X> <Y> |
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| 258 | # |
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| 259 | # Invoked automatically when the user clicks on a sash, to initiate |
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| 260 | # movement. |
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| 261 | # ---------------------------------------------------------------------- |
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| 262 | itcl::body Rappture::Panes::_grab {pname X Y} { |
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| 263 | } |
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| 264 | |
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| 265 | # ---------------------------------------------------------------------- |
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| 266 | # USAGE: _drag <pane> <X> <Y> |
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| 267 | # |
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| 268 | # Invoked automatically as the user drags a sash, to resize the panes. |
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| 269 | # ---------------------------------------------------------------------- |
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| 270 | itcl::body Rappture::Panes::_drag {pname X Y} { |
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[1373] | 271 | if { $orientation == "vertical" } { |
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[1923] | 272 | set realY [expr {$Y-[winfo rooty $itk_component(hull)]}] |
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| 273 | set Ymax [winfo height $itk_component(hull)] |
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| 274 | set frac [expr double($realY)/$Ymax] |
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[1373] | 275 | } else { |
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[1923] | 276 | set realX [expr {$X-[winfo rootx $itk_component(hull)]}] |
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| 277 | set Xmax [winfo width $itk_component(hull)] |
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| 278 | set frac [expr double($realX)/$Xmax] |
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[1373] | 279 | } |
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[11] | 280 | if {$frac < 0.05} { |
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[1923] | 281 | set frac 0.05 |
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[11] | 282 | } |
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| 283 | if {$frac > 0.95} { |
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[1923] | 284 | set frac 0.95 |
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[11] | 285 | } |
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[785] | 286 | if {[llength $_frac] == 2} { |
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[1923] | 287 | set _frac [list $frac [expr {1-$frac}]] |
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[785] | 288 | } else { |
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[1923] | 289 | set i [expr {[lsearch $_panes $pname]-1}] |
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| 290 | if {$i >= 0} { |
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| 291 | set _frac [lreplace $_frac $i $i $frac] |
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| 292 | } |
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[785] | 293 | } |
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[11] | 294 | _fixLayout |
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| 295 | |
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| 296 | return $frac |
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| 297 | } |
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| 298 | |
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| 299 | # ---------------------------------------------------------------------- |
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| 300 | # USAGE: _drop <pane> <X> <Y> |
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| 301 | # |
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| 302 | # Invoked automatically as the user drops a sash, to resize the panes. |
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| 303 | # ---------------------------------------------------------------------- |
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| 304 | itcl::body Rappture::Panes::_drop {pname X Y} { |
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| 305 | set frac [_drag $pname $X $Y] |
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| 306 | } |
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| 307 | |
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| 308 | # ---------------------------------------------------------------------- |
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| 309 | # USAGE: _fixLayout ?<eventArgs>...? |
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| 310 | # |
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| 311 | # Used internally to update the layout of panes whenever a new pane |
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| 312 | # is added or a sash is moved. |
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| 313 | # ---------------------------------------------------------------------- |
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| 314 | itcl::body Rappture::Panes::_fixLayout {args} { |
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[1373] | 315 | if { $orientation == "vertical" } { |
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[1923] | 316 | set h [winfo height $itk_component(hull)] |
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[785] | 317 | |
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[1923] | 318 | set plist "" |
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| 319 | set flist "" |
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| 320 | foreach p $_panes f $_frac v $_visibility { |
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| 321 | set sash ${p}sash |
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| 322 | if {$v} { |
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| 323 | # this pane is visible -- make room for it |
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| 324 | lappend plist $p |
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| 325 | lappend flist $f |
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| 326 | if {[info exists itk_component($sash)]} { |
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| 327 | set h [expr {$h - [winfo reqheight $itk_component($sash)]}] |
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| 328 | } |
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| 329 | } else { |
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| 330 | # this pane is not visible -- remove sash |
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| 331 | if {[info exists itk_component($sash)]} { |
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| 332 | place forget $itk_component($sash) |
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| 333 | } |
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| 334 | place forget $itk_component($p) |
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| 335 | } |
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| 336 | } |
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| 337 | |
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| 338 | # normalize the fractions so they add up to 1 |
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| 339 | set total 0 |
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| 340 | foreach f $flist { set total [expr {$total+$f}] } |
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| 341 | set newflist "" |
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| 342 | foreach f $flist { |
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| 343 | lappend newflist [expr {double($f)/$total}] |
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| 344 | } |
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| 345 | set flist $newflist |
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| 346 | |
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| 347 | # lay out the various panes |
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| 348 | set y 0 |
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| 349 | foreach p $plist f $flist { |
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| 350 | set sash ${p}sash |
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| 351 | if {[info exists itk_component($sash)]} { |
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| 352 | set sh [winfo reqheight $itk_component($sash)] |
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| 353 | place $itk_component($sash) -y $y -relx 0.5 -anchor n \ |
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| 354 | -relwidth 1.0 -height $sh |
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| 355 | set y [expr {$y + $sh}] |
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| 356 | } |
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| 357 | |
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| 358 | set ph [expr {$h*$f}] |
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| 359 | place $itk_component($p) -y $y -relx 0.5 -anchor n \ |
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| 360 | -relwidth 1.0 -height $ph |
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| 361 | set y [expr {$y + $ph}] |
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| 362 | } |
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[1373] | 363 | } else { |
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[1923] | 364 | set w [winfo width $itk_component(hull)] |
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[11] | 365 | |
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[1923] | 366 | set plist "" |
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| 367 | set flist "" |
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| 368 | foreach p $_panes f $_frac v $_visibility { |
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| 369 | set sash ${p}sash |
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| 370 | if {$v} { |
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| 371 | # this pane is visible -- make room for it |
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| 372 | lappend plist $p |
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| 373 | lappend flist $f |
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| 374 | if {[info exists itk_component($sash)]} { |
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| 375 | set w [expr {$w - [winfo reqwidth $itk_component($sash)]}] |
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| 376 | } |
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| 377 | } else { |
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| 378 | # this pane is not visible -- remove sash |
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| 379 | if {[info exists itk_component($sash)]} { |
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| 380 | place forget $itk_component($sash) |
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| 381 | } |
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| 382 | place forget $itk_component($p) |
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| 383 | } |
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| 384 | } |
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| 385 | |
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| 386 | # normalize the fractions so they add up to 1 |
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| 387 | set total 0 |
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| 388 | foreach f $flist { set total [expr {$total+$f}] } |
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| 389 | set newflist "" |
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| 390 | foreach f $flist { |
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| 391 | lappend newflist [expr {double($f)/$total}] |
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| 392 | } |
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| 393 | set flist $newflist |
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| 394 | |
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| 395 | # lay out the various panes |
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| 396 | set x 0 |
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| 397 | foreach p $plist f $flist { |
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| 398 | set sash ${p}sash |
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| 399 | if {[info exists itk_component($sash)]} { |
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| 400 | set sw [winfo reqwidth $itk_component($sash)] |
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| 401 | place $itk_component($sash) -x $x -rely 0.5 -anchor w \ |
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| 402 | -relheight 1.0 -width $sw |
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| 403 | set x [expr {$x + $sw}] |
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| 404 | } |
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| 405 | |
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| 406 | set pw [expr {$w*$f}] |
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| 407 | place $itk_component($p) -x $x -rely 0.5 -anchor w \ |
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| 408 | -relheight 1.0 -width $pw |
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| 409 | set x [expr {$x + $pw}] |
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| 410 | } |
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[1373] | 411 | } |
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[11] | 412 | } |
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[413] | 413 | |
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| 414 | # ---------------------------------------------------------------------- |
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| 415 | # USAGE: _fixSashes |
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| 416 | # |
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| 417 | # Used internally to fix the appearance of sashes whenever a new |
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| 418 | # sash appears or the controlling configuration options change. |
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| 419 | # ---------------------------------------------------------------------- |
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| 420 | itcl::body Rappture::Panes::_fixSashes {args} { |
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[1373] | 421 | if { $orientation == "vertical" } { |
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[1923] | 422 | set ht [winfo pixels $itk_component(hull) $itk_option(-sashwidth)] |
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| 423 | set bd [expr {$ht/2}] |
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| 424 | foreach pane $_panes { |
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| 425 | set sash "${pane}sashridge" |
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| 426 | if {[info exists itk_component($sash)]} { |
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| 427 | $itk_component($sash) configure -height $ht -borderwidth $bd |
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| 428 | if {$itk_option(-sashrelief) == "solid"} { |
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| 429 | $itk_component($sash) configure -background black |
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| 430 | } else { |
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| 431 | $itk_component($sash) configure \ |
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| 432 | -background $itk_option(-background) |
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| 433 | } |
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| 434 | pack $itk_component($sash) -pady $itk_option(-sashpadding) |
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| 435 | } |
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| 436 | } |
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[1373] | 437 | } else { |
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[1923] | 438 | set w [winfo pixels $itk_component(hull) $itk_option(-sashwidth)] |
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| 439 | set bd [expr {$w/2}] |
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| 440 | foreach pane $_panes { |
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| 441 | set sash "${pane}sashridge" |
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| 442 | if {[info exists itk_component($sash)]} { |
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| 443 | $itk_component($sash) configure -width $w -borderwidth $bd |
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| 444 | if {$itk_option(-sashrelief) == "solid"} { |
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| 445 | $itk_component($sash) configure -background black |
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| 446 | } else { |
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| 447 | $itk_component($sash) configure \ |
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| 448 | -background $itk_option(-background) |
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| 449 | } |
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| 450 | pack $itk_component($sash) -padx $itk_option(-sashpadding) \ |
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| 451 | -side left |
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| 452 | } |
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| 453 | } |
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[413] | 454 | } |
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| 455 | } |
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| 456 | |
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| 457 | # ---------------------------------------------------------------------- |
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| 458 | # CONFIGURATION OPTION: -sashrelief |
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| 459 | # ---------------------------------------------------------------------- |
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| 460 | itcl::configbody Rappture::Panes::sashrelief { |
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| 461 | $_dispatcher event -idle !sashes |
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| 462 | } |
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| 463 | |
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| 464 | # ---------------------------------------------------------------------- |
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| 465 | # CONFIGURATION OPTION: -sashwidth |
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| 466 | # ---------------------------------------------------------------------- |
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| 467 | itcl::configbody Rappture::Panes::sashwidth { |
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| 468 | $_dispatcher event -idle !sashes |
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| 469 | } |
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| 470 | |
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| 471 | # ---------------------------------------------------------------------- |
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| 472 | # CONFIGURATION OPTION: -sashpadding |
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| 473 | # ---------------------------------------------------------------------- |
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| 474 | itcl::configbody Rappture::Panes::sashpadding { |
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| 475 | $_dispatcher event -idle !sashes |
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| 476 | } |
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