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+# tkfbox.tcl --
+#
+# Implements the "TK" standard file selection dialog box. This
+# dialog box is used on the Unix platforms whenever the tk_strictMotif
+# flag is not set.
+#
+# The "TK" standard file selection dialog box is similar to the
+# file selection dialog box on Win95(TM). The user can navigate
+# the directories by clicking on the folder icons or by
+# selectinf the "Directory" option menu. The user can select
+# files by clicking on the file icons or by entering a filename
+# in the "Filename:" entry.
+#
+# SCCS: @(#) tkfbox.tcl 1.13 97/10/01 14:51:01
+#
+# Copyright (c) 1994-1996 Sun Microsystems, Inc.
+#
+# See the file "license.terms" for information on usage and redistribution
+# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+#
+
+#----------------------------------------------------------------------
+#
+# I C O N L I S T
+#
+# This is a pseudo-widget that implements the icon list inside the
+# tkFDialog dialog box.
+#
+#----------------------------------------------------------------------
+
+# tkIconList --
+#
+# Creates an IconList widget.
+#
+proc tkIconList {w args} {
+ upvar #0 $w data
+
+ tkIconList_Config $w $args
+ tkIconList_Create $w
+}
+
+# tkIconList_Config --
+#
+# Configure the widget variables of IconList, according to the command
+# line arguments.
+#
+proc tkIconList_Config {w argList} {
+ upvar #0 $w data
+
+ # 1: the configuration specs
+ #
+ set specs {
+ {-browsecmd "" "" ""}
+ {-command "" "" ""}
+ }
+
+ # 2: parse the arguments
+ #
+ tclParseConfigSpec $w $specs "" $argList
+}
+
+# tkIconList_Create --
+#
+# Creates an IconList widget by assembling a canvas widget and a
+# scrollbar widget. Sets all the bindings necessary for the IconList's
+# operations.
+#
+proc tkIconList_Create {w} {
+ upvar #0 $w data
+
+ frame $w
+ set data(sbar) [scrollbar $w.sbar -orient horizontal \
+ -highlightthickness 0 -takefocus 0]
+ set data(canvas) [canvas $w.canvas -bd 2 -relief sunken \
+ -width 400 -height 120 -takefocus 1]
+ pack $data(sbar) -side bottom -fill x -padx 2
+ pack $data(canvas) -expand yes -fill both
+
+ $data(sbar) config -command "$data(canvas) xview"
+ $data(canvas) config -xscrollcommand "$data(sbar) set"
+
+ # Initializes the max icon/text width and height and other variables
+ #
+ set data(maxIW) 1
+ set data(maxIH) 1
+ set data(maxTW) 1
+ set data(maxTH) 1
+ set data(numItems) 0
+ set data(curItem) {}
+ set data(noScroll) 1
+
+ # Creates the event bindings.
+ #
+ bind $data(canvas) <Configure> "tkIconList_Arrange $w"
+
+ bind $data(canvas) <1> "tkIconList_Btn1 $w %x %y"
+ bind $data(canvas) <B1-Motion> "tkIconList_Motion1 $w %x %y"
+ bind $data(canvas) <Double-1> "tkIconList_Double1 $w %x %y"
+ bind $data(canvas) <ButtonRelease-1> "tkCancelRepeat"
+ bind $data(canvas) <B1-Leave> "tkIconList_Leave1 $w %x %y"
+ bind $data(canvas) <B1-Enter> "tkCancelRepeat"
+
+ bind $data(canvas) <Up> "tkIconList_UpDown $w -1"
+ bind $data(canvas) <Down> "tkIconList_UpDown $w 1"
+ bind $data(canvas) <Left> "tkIconList_LeftRight $w -1"
+ bind $data(canvas) <Right> "tkIconList_LeftRight $w 1"
+ bind $data(canvas) <Return> "tkIconList_ReturnKey $w"
+ bind $data(canvas) <KeyPress> "tkIconList_KeyPress $w %A"
+ bind $data(canvas) <Control-KeyPress> ";"
+ bind $data(canvas) <Alt-KeyPress> ";"
+
+ bind $data(canvas) <FocusIn> "tkIconList_FocusIn $w"
+
+ return $w
+}
+
+# tkIconList_AutoScan --
+#
+# This procedure is invoked when the mouse leaves an entry window
+# with button 1 down. It scrolls the window up, down, left, or
+# right, depending on where the mouse left the window, and reschedules
+# itself as an "after" command so that the window continues to scroll until
+# the mouse moves back into the window or the mouse button is released.
+#
+# Arguments:
+# w - The IconList window.
+#
+proc tkIconList_AutoScan {w} {
+ upvar #0 $w data
+ global tkPriv
+
+ if {![winfo exists $w]} return
+ set x $tkPriv(x)
+ set y $tkPriv(y)
+
+ if $data(noScroll) {
+ return
+ }
+ if {$x >= [winfo width $data(canvas)]} {
+ $data(canvas) xview scroll 1 units
+ } elseif {$x < 0} {
+ $data(canvas) xview scroll -1 units
+ } elseif {$y >= [winfo height $data(canvas)]} {
+ # do nothing
+ } elseif {$y < 0} {
+ # do nothing
+ } else {
+ return
+ }
+
+ tkIconList_Motion1 $w $x $y
+ set tkPriv(afterId) [after 50 tkIconList_AutoScan $w]
+}
+
+# Deletes all the items inside the canvas subwidget and reset the IconList's
+# state.
+#
+proc tkIconList_DeleteAll {w} {
+ upvar #0 $w data
+ upvar #0 $w:itemList itemList
+
+ $data(canvas) delete all
+ catch {unset data(selected)}
+ catch {unset data(rect)}
+ catch {unset data(list)}
+ catch {unset itemList}
+ set data(maxIW) 1
+ set data(maxIH) 1
+ set data(maxTW) 1
+ set data(maxTH) 1
+ set data(numItems) 0
+ set data(curItem) {}
+ set data(noScroll) 1
+ $data(sbar) set 0.0 1.0
+ $data(canvas) xview moveto 0
+}
+
+# Adds an icon into the IconList with the designated image and text
+#
+proc tkIconList_Add {w image text} {
+ upvar #0 $w data
+ upvar #0 $w:itemList itemList
+ upvar #0 $w:textList textList
+
+ set iTag [$data(canvas) create image 0 0 -image $image -anchor nw]
+ set tTag [$data(canvas) create text 0 0 -text $text -anchor nw \
+ -font $data(font)]
+ set rTag [$data(canvas) create rect 0 0 0 0 -fill "" -outline ""]
+
+ set b [$data(canvas) bbox $iTag]
+ set iW [expr [lindex $b 2]-[lindex $b 0]]
+ set iH [expr [lindex $b 3]-[lindex $b 1]]
+ if {$data(maxIW) < $iW} {
+ set data(maxIW) $iW
+ }
+ if {$data(maxIH) < $iH} {
+ set data(maxIH) $iH
+ }
+
+ set b [$data(canvas) bbox $tTag]
+ set tW [expr [lindex $b 2]-[lindex $b 0]]
+ set tH [expr [lindex $b 3]-[lindex $b 1]]
+ if {$data(maxTW) < $tW} {
+ set data(maxTW) $tW
+ }
+ if {$data(maxTH) < $tH} {
+ set data(maxTH) $tH
+ }
+
+ lappend data(list) [list $iTag $tTag $rTag $iW $iH $tW $tH $data(numItems)]
+ set itemList($rTag) [list $iTag $tTag $text $data(numItems)]
+ set textList($data(numItems)) [string tolower $text]
+ incr data(numItems)
+}
+
+# Places the icons in a column-major arrangement.
+#
+proc tkIconList_Arrange {w} {
+ upvar #0 $w data
+
+ if ![info exists data(list)] {
+ if {[info exists data(canvas)] && [winfo exists $data(canvas)]} {
+ set data(noScroll) 1
+ $data(sbar) config -command ""
+ }
+ return
+ }
+
+ set W [winfo width $data(canvas)]
+ set H [winfo height $data(canvas)]
+ set pad [expr [$data(canvas) cget -highlightthickness] + \
+ [$data(canvas) cget -bd]]
+ if {$pad < 2} {
+ set pad 2
+ }
+
+ incr W -[expr $pad*2]
+ incr H -[expr $pad*2]
+
+ set dx [expr $data(maxIW) + $data(maxTW) + 8]
+ if {$data(maxTH) > $data(maxIH)} {
+ set dy $data(maxTH)
+ } else {
+ set dy $data(maxIH)
+ }
+ incr dy 2
+ set shift [expr $data(maxIW) + 4]
+
+ set x [expr $pad * 2]
+ set y [expr $pad * 1]
+ set usedColumn 0
+ foreach sublist $data(list) {
+ set usedColumn 1
+ set iTag [lindex $sublist 0]
+ set tTag [lindex $sublist 1]
+ set rTag [lindex $sublist 2]
+ set iW [lindex $sublist 3]
+ set iH [lindex $sublist 4]
+ set tW [lindex $sublist 5]
+ set tH [lindex $sublist 6]
+
+ set i_dy [expr ($dy - $iH)/2]
+ set t_dy [expr ($dy - $tH)/2]
+
+ $data(canvas) coords $iTag $x [expr $y + $i_dy]
+ $data(canvas) coords $tTag [expr $x + $shift] [expr $y + $t_dy]
+ $data(canvas) coords $tTag [expr $x + $shift] [expr $y + $t_dy]
+ $data(canvas) coords $rTag $x $y [expr $x+$dx] [expr $y+$dy]
+
+ incr y $dy
+ if {[expr $y + $dy] > $H} {
+ set y [expr $pad * 1]
+ incr x $dx
+ set usedColumn 0
+ }
+ }
+
+ if {$usedColumn} {
+ set sW [expr $x + $dx]
+ } else {
+ set sW $x
+ }
+
+ if {$sW < $W} {
+ $data(canvas) config -scrollregion "$pad $pad $sW $H"
+ $data(sbar) config -command ""
+ $data(canvas) xview moveto 0
+ set data(noScroll) 1
+ } else {
+ $data(canvas) config -scrollregion "$pad $pad $sW $H"
+ $data(sbar) config -command "$data(canvas) xview"
+ set data(noScroll) 0
+ }
+
+ set data(itemsPerColumn) [expr ($H-$pad)/$dy]
+ if {$data(itemsPerColumn) < 1} {
+ set data(itemsPerColumn) 1
+ }
+
+ if {$data(curItem) != {}} {
+ tkIconList_Select $w [lindex [lindex $data(list) $data(curItem)] 2] 0
+ }
+}
+
+# Gets called when the user invokes the IconList (usually by double-clicking
+# or pressing the Return key).
+#
+proc tkIconList_Invoke {w} {
+ upvar #0 $w data
+
+ if {[string compare $data(-command) ""] && [info exists data(selected)]} {
+ eval $data(-command) [list $data(selected)]
+ }
+}
+
+# tkIconList_See --
+#
+# If the item is not (completely) visible, scroll the canvas so that
+# it becomes visible.
+proc tkIconList_See {w rTag} {
+ upvar #0 $w data
+ upvar #0 $w:itemList itemList
+
+ if $data(noScroll) {
+ return
+ }
+ set sRegion [$data(canvas) cget -scrollregion]
+ if ![string compare $sRegion {}] {
+ return
+ }
+
+ if ![info exists itemList($rTag)] {
+ return
+ }
+
+
+ set bbox [$data(canvas) bbox $rTag]
+ set pad [expr [$data(canvas) cget -highlightthickness] + \
+ [$data(canvas) cget -bd]]
+
+ set x1 [lindex $bbox 0]
+ set x2 [lindex $bbox 2]
+ incr x1 -[expr $pad * 2]
+ incr x2 -[expr $pad * 1]
+
+ set cW [expr [winfo width $data(canvas)] - $pad*2]
+
+ set scrollW [expr [lindex $sRegion 2]-[lindex $sRegion 0]+1]
+ set dispX [expr int([lindex [$data(canvas) xview] 0]*$scrollW)]
+ set oldDispX $dispX
+
+ # check if out of the right edge
+ #
+ if {[expr $x2 - $dispX] >= $cW} {
+ set dispX [expr $x2 - $cW]
+ }
+ # check if out of the left edge
+ #
+ if {[expr $x1 - $dispX] < 0} {
+ set dispX $x1
+ }
+
+ if {$oldDispX != $dispX} {
+ set fraction [expr double($dispX)/double($scrollW)]
+ $data(canvas) xview moveto $fraction
+ }
+}
+
+proc tkIconList_SelectAtXY {w x y} {
+ upvar #0 $w data
+
+ tkIconList_Select $w [$data(canvas) find closest \
+ [$data(canvas) canvasx $x] [$data(canvas) canvasy $y]]
+}
+
+proc tkIconList_Select {w rTag {callBrowse 1}} {
+ upvar #0 $w data
+ upvar #0 $w:itemList itemList
+
+ if ![info exists itemList($rTag)] {
+ return
+ }
+ set iTag [lindex $itemList($rTag) 0]
+ set tTag [lindex $itemList($rTag) 1]
+ set text [lindex $itemList($rTag) 2]
+ set serial [lindex $itemList($rTag) 3]
+
+ if ![info exists data(rect)] {
+ set data(rect) [$data(canvas) create rect 0 0 0 0 \
+ -fill #a0a0ff -outline #a0a0ff]
+ }
+ $data(canvas) lower $data(rect)
+ set bbox [$data(canvas) bbox $tTag]
+ eval $data(canvas) coords $data(rect) $bbox
+
+ set data(curItem) $serial
+ set data(selected) $text
+
+ if {$callBrowse} {
+ if [string compare $data(-browsecmd) ""] {
+ eval $data(-browsecmd) [list $text]
+ }
+ }
+}
+
+proc tkIconList_Unselect {w} {
+ upvar #0 $w data
+
+ if [info exists data(rect)] {
+ $data(canvas) delete $data(rect)
+ unset data(rect)
+ }
+ if [info exists data(selected)] {
+ unset data(selected)
+ }
+ set data(curItem) {}
+}
+
+# Returns the selected item
+#
+proc tkIconList_Get {w} {
+ upvar #0 $w data
+
+ if [info exists data(selected)] {
+ return $data(selected)
+ } else {
+ return ""
+ }
+}
+
+
+proc tkIconList_Btn1 {w x y} {
+ upvar #0 $w data
+
+ focus $data(canvas)
+ tkIconList_SelectAtXY $w $x $y
+}
+
+# Gets called on button-1 motions
+#
+proc tkIconList_Motion1 {w x y} {
+ global tkPriv
+ set tkPriv(x) $x
+ set tkPriv(y) $y
+
+ tkIconList_SelectAtXY $w $x $y
+}
+
+proc tkIconList_Double1 {w x y} {
+ upvar #0 $w data
+
+ if {$data(curItem) != {}} {
+ tkIconList_Invoke $w
+ }
+}
+
+proc tkIconList_ReturnKey {w} {
+ tkIconList_Invoke $w
+}
+
+proc tkIconList_Leave1 {w x y} {
+ global tkPriv
+
+ set tkPriv(x) $x
+ set tkPriv(y) $y
+ tkIconList_AutoScan $w
+}
+
+proc tkIconList_FocusIn {w} {
+ upvar #0 $w data
+
+ if ![info exists data(list)] {
+ return
+ }
+
+ if {$data(curItem) == {}} {
+ set rTag [lindex [lindex $data(list) 0] 2]
+ tkIconList_Select $w $rTag
+ }
+}
+
+# tkIconList_UpDown --
+#
+# Moves the active element up or down by one element
+#
+# Arguments:
+# w - The IconList widget.
+# amount - +1 to move down one item, -1 to move back one item.
+#
+proc tkIconList_UpDown {w amount} {
+ upvar #0 $w data
+
+ if ![info exists data(list)] {
+ return
+ }
+
+ if {$data(curItem) == {}} {
+ set rTag [lindex [lindex $data(list) 0] 2]
+ } else {
+ set oldRTag [lindex [lindex $data(list) $data(curItem)] 2]
+ set rTag [lindex [lindex $data(list) [expr $data(curItem)+$amount]] 2]
+ if ![string compare $rTag ""] {
+ set rTag $oldRTag
+ }
+ }
+
+ if [string compare $rTag ""] {
+ tkIconList_Select $w $rTag
+ tkIconList_See $w $rTag
+ }
+}
+
+# tkIconList_LeftRight --
+#
+# Moves the active element left or right by one column
+#
+# Arguments:
+# w - The IconList widget.
+# amount - +1 to move right one column, -1 to move left one column.
+#
+proc tkIconList_LeftRight {w amount} {
+ upvar #0 $w data
+
+ if ![info exists data(list)] {
+ return
+ }
+ if {$data(curItem) == {}} {
+ set rTag [lindex [lindex $data(list) 0] 2]
+ } else {
+ set oldRTag [lindex [lindex $data(list) $data(curItem)] 2]
+ set newItem [expr $data(curItem)+($amount*$data(itemsPerColumn))]
+ set rTag [lindex [lindex $data(list) $newItem] 2]
+ if ![string compare $rTag ""] {
+ set rTag $oldRTag
+ }
+ }
+
+ if [string compare $rTag ""] {
+ tkIconList_Select $w $rTag
+ tkIconList_See $w $rTag
+ }
+}
+
+#----------------------------------------------------------------------
+# Accelerator key bindings
+#----------------------------------------------------------------------
+
+# tkIconList_KeyPress --
+#
+# Gets called when user enters an arbitrary key in the listbox.
+#
+proc tkIconList_KeyPress {w key} {
+ global tkPriv
+
+ append tkPriv(ILAccel,$w) $key
+ tkIconList_Goto $w $tkPriv(ILAccel,$w)
+ catch {
+ after cancel $tkPriv(ILAccel,$w,afterId)
+ }
+ set tkPriv(ILAccel,$w,afterId) [after 500 tkIconList_Reset $w]
+}
+
+proc tkIconList_Goto {w text} {
+ upvar #0 $w data
+ upvar #0 $w:textList textList
+ global tkPriv
+
+ if ![info exists data(list)] {
+ return
+ }
+
+ if {[string length $text] == 0} {
+ return
+ }
+
+ if {$data(curItem) == {} || $data(curItem) == 0} {
+ set start 0
+ } else {
+ set start $data(curItem)
+ }
+
+ set text [string tolower $text]
+ set theIndex -1
+ set less 0
+ set len [string length $text]
+ set len0 [expr $len-1]
+ set i $start
+
+ # Search forward until we find a filename whose prefix is an exact match
+ # with $text
+ while 1 {
+ set sub [string range $textList($i) 0 $len0]
+ if {[string compare $text $sub] == 0} {
+ set theIndex $i
+ break
+ }
+ incr i
+ if {$i == $data(numItems)} {
+ set i 0
+ }
+ if {$i == $start} {
+ break
+ }
+ }
+
+ if {$theIndex > -1} {
+ set rTag [lindex [lindex $data(list) $theIndex] 2]
+ tkIconList_Select $w $rTag 0
+ tkIconList_See $w $rTag
+ }
+}
+
+proc tkIconList_Reset {w} {
+ global tkPriv
+
+ catch {unset tkPriv(ILAccel,$w)}
+}
+
+#----------------------------------------------------------------------
+#
+# F I L E D I A L O G
+#
+#----------------------------------------------------------------------
+
+# tkFDialog --
+#
+# Implements the TK file selection dialog. This dialog is used when
+# the tk_strictMotif flag is set to false. This procedure shouldn't
+# be called directly. Call tk_getOpenFile or tk_getSaveFile instead.
+#
+proc tkFDialog {args} {
+ global tkPriv
+ set w __tk_filedialog
+ upvar #0 $w data
+
+ if ![string compare [lindex [info level 0] 0] tk_getOpenFile] {
+ set type open
+ } else {
+ set type save
+ }
+
+ tkFDialog_Config $w $type $args
+
+ if {![string compare $data(-parent) .]} {
+ set w .$w
+ } else {
+ set w $data(-parent).$w
+ }
+
+ # (re)create the dialog box if necessary
+ #
+ if {![winfo exists $w]} {
+ tkFDialog_Create $w
+ } elseif {[string compare [winfo class $w] TkFDialog]} {
+ destroy $w
+ tkFDialog_Create $w
+ }
+ wm transient $w $data(-parent)
+
+ # 5. Initialize the file types menu
+ #
+ if {$data(-filetypes) != {}} {
+ $data(typeMenu) delete 0 end
+ foreach type $data(-filetypes) {
+ set title [lindex $type 0]
+ set filter [lindex $type 1]
+ $data(typeMenu) add command -label $title \
+ -command [list tkFDialog_SetFilter $w $type]
+ }
+ tkFDialog_SetFilter $w [lindex $data(-filetypes) 0]
+ $data(typeMenuBtn) config -state normal
+ $data(typeMenuLab) config -state normal
+ } else {
+ set data(filter) "*"
+ $data(typeMenuBtn) config -state disabled -takefocus 0
+ $data(typeMenuLab) config -state disabled
+ }
+
+ tkFDialog_UpdateWhenIdle $w
+
+ # 6. Withdraw the window, then update all the geometry information
+ # so we know how big it wants to be, then center the window in the
+ # display and de-iconify it.
+
+ wm withdraw $w
+ update idletasks
+ set x [expr [winfo screenwidth $w]/2 - [winfo reqwidth $w]/2 \
+ - [winfo vrootx [winfo parent $w]]]
+ set y [expr [winfo screenheight $w]/2 - [winfo reqheight $w]/2 \
+ - [winfo vrooty [winfo parent $w]]]
+ wm geom $w [winfo reqwidth $w]x[winfo reqheight $w]+$x+$y
+ wm deiconify $w
+ wm title $w $data(-title)
+
+ # 7. Set a grab and claim the focus too.
+
+ set oldFocus [focus]
+ set oldGrab [grab current $w]
+ if {$oldGrab != ""} {
+ set grabStatus [grab status $oldGrab]
+ }
+ grab $w
+ focus $data(ent)
+ $data(ent) delete 0 end
+ $data(ent) insert 0 $data(selectFile)
+ $data(ent) select from 0
+ $data(ent) select to end
+ $data(ent) icursor end
+
+ # 8. Wait for the user to respond, then restore the focus and
+ # return the index of the selected button. Restore the focus
+ # before deleting the window, since otherwise the window manager
+ # may take the focus away so we can't redirect it. Finally,
+ # restore any grab that was in effect.
+
+ tkwait variable tkPriv(selectFilePath)
+ catch {focus $oldFocus}
+ grab release $w
+ wm withdraw $w
+ if {$oldGrab != ""} {
+ if {$grabStatus == "global"} {
+ grab -global $oldGrab
+ } else {
+ grab $oldGrab
+ }
+ }
+ return $tkPriv(selectFilePath)
+}
+
+# tkFDialog_Config --
+#
+# Configures the TK filedialog according to the argument list
+#
+proc tkFDialog_Config {w type argList} {
+ upvar #0 $w data
+
+ set data(type) $type
+
+ # 1: the configuration specs
+ #
+ set specs {
+ {-defaultextension "" "" ""}
+ {-filetypes "" "" ""}
+ {-initialdir "" "" ""}
+ {-initialfile "" "" ""}
+ {-parent "" "" "."}
+ {-title "" "" ""}
+ }
+
+ # 2: default values depending on the type of the dialog
+ #
+ if ![info exists data(selectPath)] {
+ # first time the dialog has been popped up
+ set data(selectPath) [pwd]
+ set data(selectFile) ""
+ }
+
+ # 3: parse the arguments
+ #
+ tclParseConfigSpec $w $specs "" $argList
+
+ if ![string compare $data(-title) ""] {
+ if ![string compare $type "open"] {
+ set data(-title) "Open"
+ } else {
+ set data(-title) "Save As"
+ }
+ }
+
+ # 4: set the default directory and selection according to the -initial
+ # settings
+ #
+ if [string compare $data(-initialdir) ""] {
+ if [file isdirectory $data(-initialdir)] {
+ set data(selectPath) [glob $data(-initialdir)]
+ } else {
+ error "\"$data(-initialdir)\" is not a valid directory"
+ }
+ }
+ set data(selectFile) $data(-initialfile)
+
+ # 5. Parse the -filetypes option
+ #
+ set data(-filetypes) [tkFDGetFileTypes $data(-filetypes)]
+
+ if ![winfo exists $data(-parent)] {
+ error "bad window path name \"$data(-parent)\""
+ }
+}
+
+proc tkFDialog_Create {w} {
+ set dataName [lindex [split $w .] end]
+ upvar #0 $dataName data
+ global tk_library
+
+ toplevel $w -class TkFDialog
+
+ # f1: the frame with the directory option menu
+ #
+ set f1 [frame $w.f1]
+ label $f1.lab -text "Directory:" -under 0
+ set data(dirMenuBtn) $f1.menu
+ set data(dirMenu) [tk_optionMenu $f1.menu [format %s(selectPath) $dataName] ""]
+ set data(upBtn) [button $f1.up]
+ if ![info exists tkPriv(updirImage)] {
+ set tkPriv(updirImage) [image create bitmap -data {
+#define updir_width 28
+#define updir_height 16
+static char updir_bits[] = {
+ 0x00, 0x00, 0x00, 0x00, 0x80, 0x1f, 0x00, 0x00, 0x40, 0x20, 0x00, 0x00,
+ 0x20, 0x40, 0x00, 0x00, 0xf0, 0xff, 0xff, 0x01, 0x10, 0x00, 0x00, 0x01,
+ 0x10, 0x02, 0x00, 0x01, 0x10, 0x07, 0x00, 0x01, 0x90, 0x0f, 0x00, 0x01,
+ 0x10, 0x02, 0x00, 0x01, 0x10, 0x02, 0x00, 0x01, 0x10, 0x02, 0x00, 0x01,
+ 0x10, 0xfe, 0x07, 0x01, 0x10, 0x00, 0x00, 0x01, 0x10, 0x00, 0x00, 0x01,
+ 0xf0, 0xff, 0xff, 0x01};}]
+ }
+ $data(upBtn) config -image $tkPriv(updirImage)
+
+ $f1.menu config -takefocus 1 -highlightthickness 2
+
+ pack $data(upBtn) -side right -padx 4 -fill both
+ pack $f1.lab -side left -padx 4 -fill both
+ pack $f1.menu -expand yes -fill both -padx 4
+
+ # data(icons): the IconList that list the files and directories.
+ #
+ set data(icons) [tkIconList $w.icons \
+ -browsecmd "tkFDialog_ListBrowse $w" \
+ -command "tkFDialog_ListInvoke $w"]
+
+ # f2: the frame with the OK button and the "file name" field
+ #
+ set f2 [frame $w.f2 -bd 0]
+ label $f2.lab -text "File name:" -anchor e -width 14 -under 5 -pady 0
+ set data(ent) [entry $f2.ent]
+
+ # The font to use for the icons. The default Canvas font on Unix
+ # is just deviant.
+ global $w.icons
+ set $w.icons(font) [$data(ent) cget -font]
+
+ # f3: the frame with the cancel button and the file types field
+ #
+ set f3 [frame $w.f3 -bd 0]
+
+ # The "File of types:" label needs to be grayed-out when
+ # -filetypes are not specified. The label widget does not support
+ # grayed-out text on monochrome displays. Therefore, we have to
+ # use a button widget to emulate a label widget (by setting its
+ # bindtags)
+
+ set data(typeMenuLab) [button $f3.lab -text "Files of type:" \
+ -anchor e -width 14 -under 9 \
+ -bd [$f2.lab cget -bd] \
+ -highlightthickness [$f2.lab cget -highlightthickness] \
+ -relief [$f2.lab cget -relief] \
+ -padx [$f2.lab cget -padx] \
+ -pady [$f2.lab cget -pady]]
+ bindtags $data(typeMenuLab) [list $data(typeMenuLab) Label \
+ [winfo toplevel $data(typeMenuLab)] all]
+
+ set data(typeMenuBtn) [menubutton $f3.menu -indicatoron 1 -menu $f3.menu.m]
+ set data(typeMenu) [menu $data(typeMenuBtn).m -tearoff 0]
+ $data(typeMenuBtn) config -takefocus 1 -highlightthickness 2 \
+ -relief raised -bd 2 -anchor w
+
+ # the okBtn is created after the typeMenu so that the keyboard traversal
+ # is in the right order
+ set data(okBtn) [button $f2.ok -text OK -under 0 -width 6 \
+ -default active -pady 3]
+ set data(cancelBtn) [button $f3.cancel -text Cancel -under 0 -width 6\
+ -default normal -pady 3]
+
+ # pack the widgets in f2 and f3
+ #
+ pack $data(okBtn) -side right -padx 4 -anchor e
+ pack $f2.lab -side left -padx 4
+ pack $f2.ent -expand yes -fill x -padx 2 -pady 0
+
+ pack $data(cancelBtn) -side right -padx 4 -anchor w
+ pack $data(typeMenuLab) -side left -padx 4
+ pack $data(typeMenuBtn) -expand yes -fill x -side right
+
+ # Pack all the frames together. We are done with widget construction.
+ #
+ pack $f1 -side top -fill x -pady 4
+ pack $f3 -side bottom -fill x
+ pack $f2 -side bottom -fill x
+ pack $data(icons) -expand yes -fill both -padx 4 -pady 1
+
+ # Set up the event handlers
+ #
+ bind $data(ent) <Return> "tkFDialog_ActivateEnt $w"
+
+ $data(upBtn) config -command "tkFDialog_UpDirCmd $w"
+ $data(okBtn) config -command "tkFDialog_OkCmd $w"
+ $data(cancelBtn) config -command "tkFDialog_CancelCmd $w"
+
+ trace variable data(selectPath) w "tkFDialog_SetPath $w"
+
+ bind $w <Alt-d> "focus $data(dirMenuBtn)"
+ bind $w <Alt-t> [format {
+ if {"[%s cget -state]" == "normal"} {
+ focus %s
+ }
+ } $data(typeMenuBtn) $data(typeMenuBtn)]
+ bind $w <Alt-n> "focus $data(ent)"
+ bind $w <KeyPress-Escape> "tkButtonInvoke $data(cancelBtn)"
+ bind $w <Alt-c> "tkButtonInvoke $data(cancelBtn)"
+ bind $w <Alt-o> "tkFDialog_InvokeBtn $w Open"
+ bind $w <Alt-s> "tkFDialog_InvokeBtn $w Save"
+
+ wm protocol $w WM_DELETE_WINDOW "tkFDialog_CancelCmd $w"
+
+ # Build the focus group for all the entries
+ #
+ tkFocusGroup_Create $w
+ tkFocusGroup_BindIn $w $data(ent) "tkFDialog_EntFocusIn $w"
+ tkFocusGroup_BindOut $w $data(ent) "tkFDialog_EntFocusOut $w"
+}
+
+# tkFDialog_UpdateWhenIdle --
+#
+# Creates an idle event handler which updates the dialog in idle
+# time. This is important because loading the directory may take a long
+# time and we don't want to load the same directory for multiple times
+# due to multiple concurrent events.
+#
+proc tkFDialog_UpdateWhenIdle {w} {
+ upvar #0 [winfo name $w] data
+
+ if [info exists data(updateId)] {
+ return
+ } else {
+ set data(updateId) [after idle tkFDialog_Update $w]
+ }
+}
+
+# tkFDialog_Update --
+#
+# Loads the files and directories into the IconList widget. Also
+# sets up the directory option menu for quick access to parent
+# directories.
+#
+proc tkFDialog_Update {w} {
+ set dataName [winfo name $w]
+ upvar #0 $dataName data
+ global tk_library tkPriv
+
+ # This proc may be called within an idle handler. Make sure that the
+ # window has not been destroyed before this proc is called
+ if {![winfo exists $w] || [string compare [winfo class $w] TkFDialog]} {
+ return
+ } else {
+ catch {unset data(updateId)}
+ }
+
+ set TRANSPARENT_GIF_COLOR [$w cget -bg]
+ if ![info exists tkPriv(folderImage)] {
+ set tkPriv(folderImage) [image create photo -data {
+R0lGODlhEAAMAKEAAAD//wAAAPD/gAAAACH5BAEAAAAALAAAAAAQAAwAAAIghINhyycvVFsB
+QtmS3rjaH1Hg141WaT5ouprt2HHcUgAAOw==}]
+ set tkPriv(fileImage) [image create photo -data {
+R0lGODlhDAAMAKEAALLA3AAAAP//8wAAACH5BAEAAAAALAAAAAAMAAwAAAIgRI4Ha+IfWHsO
+rSASvJTGhnhcV3EJlo3kh53ltF5nAhQAOw==}]
+ }
+ set folder $tkPriv(folderImage)
+ set file $tkPriv(fileImage)
+
+ set appPWD [pwd]
+ if [catch {
+ cd $data(selectPath)
+ }] {
+ # We cannot change directory to $data(selectPath). $data(selectPath)
+ # should have been checked before tkFDialog_Update is called, so
+ # we normally won't come to here. Anyways, give an error and abort
+ # action.
+ tk_messageBox -type ok -parent $data(-parent) -message \
+ "Cannot change to the directory \"$data(selectPath)\".\nPermission denied."\
+ -icon warning
+ cd $appPWD
+ return
+ }
+
+ # Turn on the busy cursor. BUG?? We haven't disabled X events, though,
+ # so the user may still click and cause havoc ...
+ #
+ set entCursor [$data(ent) cget -cursor]
+ set dlgCursor [$w cget -cursor]
+ $data(ent) config -cursor watch
+ $w config -cursor watch
+ update idletasks
+
+ tkIconList_DeleteAll $data(icons)
+
+ # Make the dir list
+ #
+ foreach f [lsort -dictionary [glob -nocomplain .* *]] {
+ if ![string compare $f .] {
+ continue
+ }
+ if ![string compare $f ..] {
+ continue
+ }
+ if [file isdir ./$f] {
+ if ![info exists hasDoneDir($f)] {
+ tkIconList_Add $data(icons) $folder $f
+ set hasDoneDir($f) 1
+ }
+ }
+ }
+ # Make the file list
+ #
+ if ![string compare $data(filter) *] {
+ set files [lsort -dictionary \
+ [glob -nocomplain .* *]]
+ } else {
+ set files [lsort -dictionary \
+ [eval glob -nocomplain $data(filter)]]
+ }
+
+ set top 0
+ foreach f $files {
+ if ![file isdir ./$f] {
+ if ![info exists hasDoneFile($f)] {
+ tkIconList_Add $data(icons) $file $f
+ set hasDoneFile($f) 1
+ }
+ }
+ }
+
+ tkIconList_Arrange $data(icons)
+
+ # Update the Directory: option menu
+ #
+ set list ""
+ set dir ""
+ foreach subdir [file split $data(selectPath)] {
+ set dir [file join $dir $subdir]
+ lappend list $dir
+ }
+
+ $data(dirMenu) delete 0 end
+ set var [format %s(selectPath) $dataName]
+ foreach path $list {
+ $data(dirMenu) add command -label $path -command [list set $var $path]
+ }
+
+ # Restore the PWD to the application's PWD
+ #
+ cd $appPWD
+
+ # turn off the busy cursor.
+ #
+ $data(ent) config -cursor $entCursor
+ $w config -cursor $dlgCursor
+}
+
+# tkFDialog_SetPathSilently --
+#
+# Sets data(selectPath) without invoking the trace procedure
+#
+proc tkFDialog_SetPathSilently {w path} {
+ upvar #0 [winfo name $w] data
+
+ trace vdelete data(selectPath) w "tkFDialog_SetPath $w"
+ set data(selectPath) $path
+ trace variable data(selectPath) w "tkFDialog_SetPath $w"
+}
+
+
+# This proc gets called whenever data(selectPath) is set
+#
+proc tkFDialog_SetPath {w name1 name2 op} {
+ upvar #0 [winfo name $w] data
+ tkFDialog_UpdateWhenIdle $w
+}
+
+# This proc gets called whenever data(filter) is set
+#
+proc tkFDialog_SetFilter {w type} {
+ upvar #0 [winfo name $w] data
+ upvar \#0 $data(icons) icons
+
+ set data(filter) [lindex $type 1]
+ $data(typeMenuBtn) config -text [lindex $type 0] -indicatoron 1
+
+ $icons(sbar) set 0.0 0.0
+
+ tkFDialog_UpdateWhenIdle $w
+}
+
+# tkFDialogResolveFile --
+#
+# Interpret the user's text input in a file selection dialog.
+# Performs:
+#
+# (1) ~ substitution
+# (2) resolve all instances of . and ..
+# (3) check for non-existent files/directories
+# (4) check for chdir permissions
+#
+# Arguments:
+# context: the current directory you are in
+# text: the text entered by the user
+# defaultext: the default extension to add to files with no extension
+#
+# Return vaue:
+# [list $flag $directory $file]
+#
+# flag = OK : valid input
+# = PATTERN : valid directory/pattern
+# = PATH : the directory does not exist
+# = FILE : the directory exists by the file doesn't
+# exist
+# = CHDIR : Cannot change to the directory
+# = ERROR : Invalid entry
+#
+# directory : valid only if flag = OK or PATTERN or FILE
+# file : valid only if flag = OK or PATTERN
+#
+# directory may not be the same as context, because text may contain
+# a subdirectory name
+#
+proc tkFDialogResolveFile {context text defaultext} {
+
+ set appPWD [pwd]
+
+ set path [tkFDialog_JoinFile $context $text]
+
+ if {[file ext $path] == ""} {
+ set path "$path$defaultext"
+ }
+
+ if [catch {file exists $path}] {
+ return [list ERROR $path ""]
+ }
+
+ if [catch {if [file exists $path] {}}] {
+ # This "if" block can be safely removed if the following code returns
+ # an error. It currently (7/22/97) doesn't
+ #
+ # file exists ~nonsuchuser
+ #
+ return [list ERROR $path ""]
+ }
+
+ if [file exists $path] {
+ if [file isdirectory $path] {
+ if [catch {
+ cd $path
+ }] {
+ return [list CHDIR $path ""]
+ }
+ set directory [pwd]
+ set file ""
+ set flag OK
+ cd $appPWD
+ } else {
+ if [catch {
+ cd [file dirname $path]
+ }] {
+ return [list CHDIR [file dirname $path] ""]
+ }
+ set directory [pwd]
+ set file [file tail $path]
+ set flag OK
+ cd $appPWD
+ }
+ } else {
+ set dirname [file dirname $path]
+ if [file exists $dirname] {
+ if [catch {
+ cd $dirname
+ }] {
+ return [list CHDIR $dirname ""]
+ }
+ set directory [pwd]
+ set file [file tail $path]
+ if [regexp {[*]|[?]} $file] {
+ set flag PATTERN
+ } else {
+ set flag FILE
+ }
+ cd $appPWD
+ } else {
+ set directory $dirname
+ set file [file tail $path]
+ set flag PATH
+ }
+ }
+
+ return [list $flag $directory $file]
+}
+
+
+# Gets called when the entry box gets keyboard focus. We clear the selection
+# from the icon list . This way the user can be certain that the input in the
+# entry box is the selection.
+#
+proc tkFDialog_EntFocusIn {w} {
+ upvar #0 [winfo name $w] data
+
+ if [string compare [$data(ent) get] ""] {
+ $data(ent) selection from 0
+ $data(ent) selection to end
+ $data(ent) icursor end
+ } else {
+ $data(ent) selection clear
+ }
+
+ tkIconList_Unselect $data(icons)
+
+ if ![string compare $data(type) open] {
+ $data(okBtn) config -text "Open"
+ } else {
+ $data(okBtn) config -text "Save"
+ }
+}
+
+proc tkFDialog_EntFocusOut {w} {
+ upvar #0 [winfo name $w] data
+
+ $data(ent) selection clear
+}
+
+
+# Gets called when user presses Return in the "File name" entry.
+#
+proc tkFDialog_ActivateEnt {w} {
+ upvar #0 [winfo name $w] data
+
+ set text [string trim [$data(ent) get]]
+ set list [tkFDialogResolveFile $data(selectPath) $text \
+ $data(-defaultextension)]
+ set flag [lindex $list 0]
+ set path [lindex $list 1]
+ set file [lindex $list 2]
+
+ case $flag {
+ OK {
+ if ![string compare $file ""] {
+ # user has entered an existing (sub)directory
+ set data(selectPath) $path
+ $data(ent) delete 0 end
+ } else {
+ tkFDialog_SetPathSilently $w $path
+ set data(selectFile) $file
+ tkFDialog_Done $w
+ }
+ }
+ PATTERN {
+ set data(selectPath) $path
+ set data(filter) $file
+ }
+ FILE {
+ if ![string compare $data(type) open] {
+ tk_messageBox -icon warning -type ok -parent $data(-parent) \
+ -message "File \"[file join $path $file]\" does not exist."
+ $data(ent) select from 0
+ $data(ent) select to end
+ $data(ent) icursor end
+ } else {
+ tkFDialog_SetPathSilently $w $path
+ set data(selectFile) $file
+ tkFDialog_Done $w
+ }
+ }
+ PATH {
+ tk_messageBox -icon warning -type ok -parent $data(-parent) \
+ -message "Directory \"$path\" does not exist."
+ $data(ent) select from 0
+ $data(ent) select to end
+ $data(ent) icursor end
+ }
+ CHDIR {
+ tk_messageBox -type ok -parent $data(-parent) -message \
+ "Cannot change to the directory \"$path\".\nPermission denied."\
+ -icon warning
+ $data(ent) select from 0
+ $data(ent) select to end
+ $data(ent) icursor end
+ }
+ ERROR {
+ tk_messageBox -type ok -parent $data(-parent) -message \
+ "Invalid file name \"$path\"."\
+ -icon warning
+ $data(ent) select from 0
+ $data(ent) select to end
+ $data(ent) icursor end
+ }
+ }
+}
+
+# Gets called when user presses the Alt-s or Alt-o keys.
+#
+proc tkFDialog_InvokeBtn {w key} {
+ upvar #0 [winfo name $w] data
+
+ if ![string compare [$data(okBtn) cget -text] $key] {
+ tkButtonInvoke $data(okBtn)
+ }
+}
+
+# Gets called when user presses the "parent directory" button
+#
+proc tkFDialog_UpDirCmd {w} {
+ upvar #0 [winfo name $w] data
+
+ if [string compare $data(selectPath) "/"] {
+ set data(selectPath) [file dirname $data(selectPath)]
+ }
+}
+
+# Join a file name to a path name. The "file join" command will break
+# if the filename begins with ~
+#
+proc tkFDialog_JoinFile {path file} {
+ if {[string match {~*} $file] && [file exists $path/$file]} {
+ return [file join $path ./$file]
+ } else {
+ return [file join $path $file]
+ }
+}
+
+
+
+# Gets called when user presses the "OK" button
+#
+proc tkFDialog_OkCmd {w} {
+ upvar #0 [winfo name $w] data
+
+ set text [tkIconList_Get $data(icons)]
+ if [string compare $text ""] {
+ set file [tkFDialog_JoinFile $data(selectPath) $text]
+ if [file isdirectory $file] {
+ tkFDialog_ListInvoke $w $text
+ return
+ }
+ }
+
+ tkFDialog_ActivateEnt $w
+}
+
+# Gets called when user presses the "Cancel" button
+#
+proc tkFDialog_CancelCmd {w} {
+ upvar #0 [winfo name $w] data
+ global tkPriv
+
+ set tkPriv(selectFilePath) ""
+}
+
+# Gets called when user browses the IconList widget (dragging mouse, arrow
+# keys, etc)
+#
+proc tkFDialog_ListBrowse {w text} {
+ upvar #0 [winfo name $w] data
+
+ if {$text == ""} {
+ return
+ }
+
+ set file [tkFDialog_JoinFile $data(selectPath) $text]
+ if ![file isdirectory $file] {
+ $data(ent) delete 0 end
+ $data(ent) insert 0 $text
+
+ if ![string compare $data(type) open] {
+ $data(okBtn) config -text "Open"
+ } else {
+ $data(okBtn) config -text "Save"
+ }
+ } else {
+ $data(okBtn) config -text "Open"
+ }
+}
+
+# Gets called when user invokes the IconList widget (double-click,
+# Return key, etc)
+#
+proc tkFDialog_ListInvoke {w text} {
+ upvar #0 [winfo name $w] data
+
+ if {$text == ""} {
+ return
+ }
+
+ set file [tkFDialog_JoinFile $data(selectPath) $text]
+
+ if [file isdirectory $file] {
+ set appPWD [pwd]
+ if [catch {cd $file}] {
+ tk_messageBox -type ok -parent $data(-parent) -message \
+ "Cannot change to the directory \"$file\".\nPermission denied."\
+ -icon warning
+ } else {
+ cd $appPWD
+ set data(selectPath) $file
+ }
+ } else {
+ set data(selectFile) $file
+ tkFDialog_Done $w
+ }
+}
+
+# tkFDialog_Done --
+#
+# Gets called when user has input a valid filename. Pops up a
+# dialog box to confirm selection when necessary. Sets the
+# tkPriv(selectFilePath) variable, which will break the "tkwait"
+# loop in tkFDialog and return the selected filename to the
+# script that calls tk_getOpenFile or tk_getSaveFile
+#
+proc tkFDialog_Done {w {selectFilePath ""}} {
+ upvar #0 [winfo name $w] data
+ global tkPriv
+
+ if ![string compare $selectFilePath ""] {
+ set selectFilePath [tkFDialog_JoinFile $data(selectPath) \
+ $data(selectFile)]
+ set tkPriv(selectFile) $data(selectFile)
+ set tkPriv(selectPath) $data(selectPath)
+
+ if {[file exists $selectFilePath] &&
+ ![string compare $data(type) save]} {
+
+ set reply [tk_messageBox -icon warning -type yesno -parent $data(-parent) \
+ -message "File \"$selectFilePath\" already exists.\nDo you want to overwrite it?"]
+ if ![string compare $reply "no"] {
+ return
+ }
+ }
+ }
+ set tkPriv(selectFilePath) $selectFilePath
+}
+