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# table.tcl --
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#
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# version 1.8, jeff.hobbs@acm.org
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# This file defines the default bindings for Tk table widgets
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# and provides procedures that help in implementing those bindings.
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#
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#--------------------------------------------------------------------------
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# tkPriv elements used in this file:
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#
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# afterId - Token returned by "after" for autoscanning.
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# tablePrev - The last element to be selected or deselected
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# during a selection operation.
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#--------------------------------------------------------------------------
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# tkTableClipboardKeysyms --
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# This procedure is invoked to identify the keys that correspond to
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# the "copy", "cut", and "paste" functions for the clipboard.
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#
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# Arguments:
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# copy - Name of the key (keysym name plus modifiers, if any,
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# such as "Meta-y") used for the copy operation.
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# cut - Name of the key used for the cut operation.
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# paste - Name of the key used for the paste operation.
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proc tkTableClipboardKeysyms {copy cut paste} {
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bind Table <$copy> {tk_tableCopy %W}
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bind Table <$cut> {tk_tableCut %W}
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bind Table <$paste> {tk_tablePaste %W}
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}
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## Interactive row resizing, affected by -resizeborders option
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##
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bind Table <3> {
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## You might want to check for row returned if you want to
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## restrict the resizing of certain rows
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%W border mark %x %y
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}
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bind Table <B3-Motion> { %W border dragto %x %y }
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## Button events
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bind Table <1> {
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if {[winfo exists %W]} {
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tkTableBeginSelect %W [%W index @%x,%y]
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focus %W
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}
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}
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bind Table <B1-Motion> {
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array set tkPriv {x %x y %y}
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tkTableMotion %W [%W index @%x,%y]
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}
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bind Table <Double-1> {
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# empty
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}
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bind Table <ButtonRelease-1> {
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if {[winfo exists %W]} {
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tkCancelRepeat
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%W activate @%x,%y
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}
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}
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bind Table <Shift-1> {tkTableBeginExtend %W [%W index @%x,%y]}
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bind Table <Control-1> {tkTableBeginToggle %W [%W index @%x,%y]}
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bind Table <B1-Enter> {tkCancelRepeat}
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bind Table <B1-Leave> {
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array set tkPriv {x %x y %y}
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tkTableAutoScan %W
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}
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bind Table <2> {
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%W scan mark %x %y
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array set tkPriv {x %x y %y}
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set tkPriv(mouseMoved) 0
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}
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bind Table <B2-Motion> {
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if {(%x != $tkPriv(x)) || (%y != $tkPriv(y))} { set tkPriv(mouseMoved) 1 }
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if $tkPriv(mouseMoved) { %W scan dragto %x %y }
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}
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bind Table <ButtonRelease-2> {
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if {!$tkPriv(mouseMoved)} { tk_tablePaste %W [%W index @%x,%y] }
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}
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## Key events
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if {[string comp {} [info command event]]} {
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tkTableClipboardKeysyms <Copy> <Cut> <Paste>
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} else {
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tkTableClipboardKeysyms Control-c Control-x Control-v
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}
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bind Table <Any-Tab> {
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# empty to allow Tk focus movement
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}
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# This forces a cell commit if an active cell exists
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# Remove this if you don't want cell commit to occur
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# on every FocusOut
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bind Table <FocusOut> {
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catch {%W activate active}
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}
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bind Table <Shift-Up> {tkTableExtendSelect %W -1 0}
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bind Table <Shift-Down> {tkTableExtendSelect %W 1 0}
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bind Table <Shift-Left> {tkTableExtendSelect %W 0 -1}
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bind Table <Shift-Right> {tkTableExtendSelect %W 0 1}
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bind Table <Prior> {%W yview scroll -1 pages; %W activate @0,0}
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bind Table <Next> {%W yview scroll 1 pages; %W activate @0,0}
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bind Table <Control-Prior> {%W xview scroll -1 pages}
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bind Table <Control-Next> {%W xview scroll 1 pages}
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bind Table <Home> {%W see origin}
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bind Table <End> {%W see end}
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bind Table <Control-Home> {
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%W selection clear all
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%W activate origin
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%W selection set active
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%W see active
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}
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bind Table <Control-End> {
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%W selection clear all
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%W activate end
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%W selection set active
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%W see active
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}
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bind Table <Shift-Control-Home> {tkTableDataExtend %W origin}
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bind Table <Shift-Control-End> {tkTableDataExtend %W end}
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bind Table <Select> {tkTableBeginSelect %W [%W index active]}
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bind Table <Shift-Select> {tkTableBeginExtend %W [%W index active]}
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bind Table <Control-slash> {tkTableSelectAll %W}
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bind Table <Control-backslash> {
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if {[string match browse [%W cget -selectmode]]} {%W selection clear all}
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}
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bind Table <Up> {tkTableMoveCell %W -1 0}
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bind Table <Down> {tkTableMoveCell %W 1 0}
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bind Table <Left> {tkTableMoveCell %W 0 -1}
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bind Table <Right> {tkTableMoveCell %W 0 1}
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bind Table <Any-KeyPress> {
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if {[string compare {} %A]} { %W insert active insert %A }
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}
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bind Table <BackSpace> {
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set tkPriv(junk) [%W icursor]
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if {[string compare {} $tkPriv(junk)] && $tkPriv(junk)} {
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%W delete active [expr {$tkPriv(junk)-1}]
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}
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}
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bind Table <Delete> {%W delete active insert}
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bind Table <Escape> {%W reread}
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#bind Table <Return> {tkTableMoveCell %W 1 0}
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bind Table <Return> {
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%W insert active insert "\n"
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}
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bind Table <Control-Left> {%W icursor [expr {[%W icursor]-1}]}
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bind Table <Control-Right> {%W icursor [expr {[%W icursor]+1}]}
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bind Table <Control-e> {%W icursor end}
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bind Table <Control-a> {%W icursor 0}
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bind Table <Control-k> {%W delete active insert end}
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bind Table <Control-equal> {tkTableChangeWidth %W active 1}
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bind Table <Control-minus> {tkTableChangeWidth %W active -1}
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# tkTableBeginSelect --
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#
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# This procedure is typically invoked on button-1 presses. It begins
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# the process of making a selection in the table. Its exact behavior
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# depends on the selection mode currently in effect for the table;
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# see the Motif documentation for details.
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#
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# Arguments:
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# w - The table widget.
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# el - The element for the selection operation (typically the
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# one under the pointer). Must be in row,col form.
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proc tkTableBeginSelect {w el} {
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global tkPriv
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if {[scan $el %d,%d r c] != 2} return
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switch [$w cget -selectmode] {
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multiple {
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if {[$w tag includes title $el]} {
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## in the title area
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if {$r < [$w cget -titlerows]+[$w cget -roworigin]} {
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## We're in a column header
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if {$c < [$w cget -titlecols]+[$w cget -colorigin]} {
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## We're in the topleft title area
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set inc topleft
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set el2 end
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} else {
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set inc [$w index topleft row],$c
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set el2 [$w index end row],$c
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}
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} else {
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## We're in a row header
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set inc $r,[$w index topleft col]
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set el2 $r,[$w index end col]
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}
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} else {
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set inc $el
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set el2 $el
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}
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if [$w selection includes $inc] {
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$w selection clear $el $el2
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} else {
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$w selection set $el $el2
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}
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}
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extended {
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$w selection clear all
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if {[$w tag includes title $el]} {
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if {$r < [$w cget -titlerows]+[$w cget -roworigin]} {
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## We're in a column header
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if {$c < [$w cget -titlecols]+[$w cget -colorigin]} {
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$w selection set origin end
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} else {
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$w selection set $el [$w index end row],$c
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}
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} else {
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## We're in a row header
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$w selection set $el $r,[$w index end col]
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}
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} else {
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$w selection set $el
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}
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$w selection anchor $el
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set tkPriv(tablePrev) $el
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}
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default {
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if {![$w tag includes title $el]} {
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$w selection clear all
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$w selection set $el
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set tkPriv(tablePrev) $el
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}
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$w selection anchor $el
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}
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}
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}
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# tkTableMotion --
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#
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# This procedure is called to process mouse motion events while
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# button 1 is down. It may move or extend the selection, depending
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# on the table's selection mode.
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#
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# Arguments:
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# w - The table widget.
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# el - The element under the pointer (must be in row,col form).
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proc tkTableMotion {w el} {
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global tkPriv
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if {![info exists tkPriv(tablePrev)]} {
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set tkPriv(tablePrev) $el
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return
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}
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if {[string match $tkPriv(tablePrev) $el]} return
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switch [$w cget -selectmode] {
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browse {
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$w selection clear all
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$w selection set $el
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set tkPriv(tablePrev) $el
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}
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extended {
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scan $tkPriv(tablePrev) %d,%d r c
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scan $el %d,%d elr elc
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if {[$w tag includes title $el]} {
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if {$r < [$w cget -titlerows]+[$w cget -roworigin]} {
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## We're in a column header
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if {$c < [$w cget -titlecols]+[$w cget -colorigin]} {
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## We're in the topleft title area
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$w selection clear anchor end
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} else {
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$w selection clear anchor [$w index end row],$c
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}
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$w selection set anchor [$w index end row],$elc
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} else {
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## We're in a row header
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$w selection clear anchor $r,[$w index end col]
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$w selection set anchor $elr,[$w index end col]
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}
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} else {
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$w selection clear anchor $tkPriv(tablePrev)
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$w selection set anchor $el
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}
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set tkPriv(tablePrev) $el
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}
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}
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}
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# tkTableBeginExtend --
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#
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# This procedure is typically invoked on shift-button-1 presses. It
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# begins the process of extending a selection in the table. Its
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# exact behavior depends on the selection mode currently in effect
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# for the table; see the Motif documentation for details.
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#
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# Arguments:
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# w - The table widget.
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# el - The element for the selection operation (typically the
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# one under the pointer). Must be in numerical form.
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proc tkTableBeginExtend {w el} {
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if {[string match extended [$w cget -selectmode]] &&
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[$w selection includes anchor]} {
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tkTableMotion $w $el
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}
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}
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# tkTableBeginToggle --
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#
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# This procedure is typically invoked on control-button-1 presses. It
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# begins the process of toggling a selection in the table. Its
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# exact behavior depends on the selection mode currently in effect
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# for the table; see the Motif documentation for details.
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#
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# Arguments:
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# w - The table widget.
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# el - The element for the selection operation (typically the
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# one under the pointer). Must be in numerical form.
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proc tkTableBeginToggle {w el} {
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global tkPriv
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if {[string match extended [$w cget -selectmode]]} {
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set tkPriv(tablePrev) $el
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$w selection anchor $el
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if [$w selection includes $el] {
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$w selection clear $el
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} else {
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$w selection set $el
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}
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}
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}
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# tkTableAutoScan --
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| 329 |
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# This procedure is invoked when the mouse leaves an entry window
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| 330 |
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# with button 1 down. It scrolls the window up, down, left, or
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| 331 |
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# right, depending on where the mouse left the window, and reschedules
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| 332 |
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# itself as an "after" command so that the window continues to scroll until
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# the mouse moves back into the window or the mouse button is released.
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| 334 |
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#
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| 335 |
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# Arguments:
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| 336 |
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# w - The entry window.
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| 337 |
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| 338 |
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proc tkTableAutoScan {w} {
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| 339 |
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global tkPriv
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|
|
if {![winfo exists $w]} return
|
| 341 |
|
|
set x $tkPriv(x)
|
| 342 |
|
|
set y $tkPriv(y)
|
| 343 |
|
|
if {$y >= [winfo height $w]} {
|
| 344 |
|
|
$w yview scroll 1 units
|
| 345 |
|
|
} elseif {$y < 0} {
|
| 346 |
|
|
$w yview scroll -1 units
|
| 347 |
|
|
} elseif {$x >= [winfo width $w]} {
|
| 348 |
|
|
$w xview scroll 1 units
|
| 349 |
|
|
} elseif {$x < 0} {
|
| 350 |
|
|
$w xview scroll -1 units
|
| 351 |
|
|
} else {
|
| 352 |
|
|
return
|
| 353 |
|
|
}
|
| 354 |
|
|
tkTableMotion $w [$w index @$x,$y]
|
| 355 |
|
|
set tkPriv(afterId) [after 50 tkTableAutoScan $w]
|
| 356 |
|
|
}
|
| 357 |
|
|
|
| 358 |
|
|
# tkTableMoveCell --
|
| 359 |
|
|
#
|
| 360 |
|
|
# Moves the location cursor (active element) by the specified number
|
| 361 |
|
|
# of cells and changes the selection if we're in browse or extended
|
| 362 |
|
|
# selection mode.
|
| 363 |
|
|
#
|
| 364 |
|
|
# Arguments:
|
| 365 |
|
|
# w - The table widget.
|
| 366 |
|
|
# x - +1 to move down one cell, -1 to move up one cell.
|
| 367 |
|
|
# y - +1 to move right one cell, -1 to move left one cell.
|
| 368 |
|
|
|
| 369 |
|
|
proc tkTableMoveCell {w x y} {
|
| 370 |
|
|
global tkPriv
|
| 371 |
|
|
if {[catch {$w index active row} r]} return
|
| 372 |
|
|
set c [$w index active col]
|
| 373 |
|
|
$w activate [incr r $x],[incr c $y]
|
| 374 |
|
|
$w see active
|
| 375 |
|
|
switch [$w cget -selectmode] {
|
| 376 |
|
|
browse {
|
| 377 |
|
|
$w selection clear all
|
| 378 |
|
|
$w selection set active
|
| 379 |
|
|
}
|
| 380 |
|
|
extended {
|
| 381 |
|
|
$w selection clear all
|
| 382 |
|
|
$w selection set active
|
| 383 |
|
|
$w selection anchor active
|
| 384 |
|
|
set tkPriv(tablePrev) [$w index active]
|
| 385 |
|
|
}
|
| 386 |
|
|
}
|
| 387 |
|
|
}
|
| 388 |
|
|
|
| 389 |
|
|
# tkTableExtendSelect --
|
| 390 |
|
|
#
|
| 391 |
|
|
# Does nothing unless we're in extended selection mode; in this
|
| 392 |
|
|
# case it moves the location cursor (active element) by the specified
|
| 393 |
|
|
# number of cells, and extends the selection to that point.
|
| 394 |
|
|
#
|
| 395 |
|
|
# Arguments:
|
| 396 |
|
|
# w - The table widget.
|
| 397 |
|
|
# x - +1 to move down one cell, -1 to move up one cell.
|
| 398 |
|
|
# y - +1 to move right one cell, -1 to move left one cell.
|
| 399 |
|
|
|
| 400 |
|
|
proc tkTableExtendSelect {w x y} {
|
| 401 |
|
|
if {[string compare extended [$w cget -selectmode]] ||
|
| 402 |
|
|
[catch {$w index active row} r]} return
|
| 403 |
|
|
set c [$w index active col]
|
| 404 |
|
|
$w activate [incr r $x],[incr c $y]
|
| 405 |
|
|
$w see active
|
| 406 |
|
|
tkTableMotion $w [$w index active]
|
| 407 |
|
|
}
|
| 408 |
|
|
|
| 409 |
|
|
# tkTableDataExtend
|
| 410 |
|
|
#
|
| 411 |
|
|
# This procedure is called for key-presses such as Shift-KEndData.
|
| 412 |
|
|
# If the selection mode isnt multiple or extend then it does nothing.
|
| 413 |
|
|
# Otherwise it moves the active element to el and, if we're in
|
| 414 |
|
|
# extended mode, extends the selection to that point.
|
| 415 |
|
|
#
|
| 416 |
|
|
# Arguments:
|
| 417 |
|
|
# w - The table widget.
|
| 418 |
|
|
# el - An integer cell number.
|
| 419 |
|
|
|
| 420 |
|
|
proc tkTableDataExtend {w el} {
|
| 421 |
|
|
set mode [$w cget -selectmode]
|
| 422 |
|
|
if {[string match extended $mode]} {
|
| 423 |
|
|
$w activate $el
|
| 424 |
|
|
$w see $el
|
| 425 |
|
|
if [$w selection includes anchor] {tkTableMotion $w $el}
|
| 426 |
|
|
} elseif {[string match multiple $mode]} {
|
| 427 |
|
|
$w activate $el
|
| 428 |
|
|
$w see $el
|
| 429 |
|
|
}
|
| 430 |
|
|
}
|
| 431 |
|
|
|
| 432 |
|
|
# tkTableSelectAll
|
| 433 |
|
|
#
|
| 434 |
|
|
# This procedure is invoked to handle the "select all" operation.
|
| 435 |
|
|
# For single and browse mode, it just selects the active element.
|
| 436 |
|
|
# Otherwise it selects everything in the widget.
|
| 437 |
|
|
#
|
| 438 |
|
|
# Arguments:
|
| 439 |
|
|
# w - The table widget.
|
| 440 |
|
|
|
| 441 |
|
|
proc tkTableSelectAll {w} {
|
| 442 |
|
|
if {[regexp {^(single|browse)$} [$w cget -selectmode]]} {
|
| 443 |
|
|
$w selection clear all
|
| 444 |
|
|
$w selection set active
|
| 445 |
|
|
tkTableHandleType $w [$w index active]
|
| 446 |
|
|
} else {
|
| 447 |
|
|
$w selection set origin end
|
| 448 |
|
|
}
|
| 449 |
|
|
}
|
| 450 |
|
|
|
| 451 |
|
|
# tkTableChangeWidth --
|
| 452 |
|
|
# Adjust the widget of the specified cell by $a.
|
| 453 |
|
|
#
|
| 454 |
|
|
# Arguments:
|
| 455 |
|
|
# w - The table widget.
|
| 456 |
|
|
# i - cell index
|
| 457 |
|
|
# a - amount to adjust by
|
| 458 |
|
|
|
| 459 |
|
|
proc tkTableChangeWidth {w i a} {
|
| 460 |
|
|
set tmp [$w index $i col]
|
| 461 |
|
|
if {[set width [$w width $tmp]] >= 0} {
|
| 462 |
|
|
$w width $tmp [incr width $a]
|
| 463 |
|
|
} else {
|
| 464 |
|
|
$w width $tmp [incr width -$a]
|
| 465 |
|
|
}
|
| 466 |
|
|
}
|
| 467 |
|
|
|
| 468 |
|
|
# tk_tableCopy --
|
| 469 |
|
|
# This procedure copies the selection from a table widget into the
|
| 470 |
|
|
# clipboard.
|
| 471 |
|
|
#
|
| 472 |
|
|
# Arguments:
|
| 473 |
|
|
# w - Name of a table widget.
|
| 474 |
|
|
|
| 475 |
|
|
proc tk_tableCopy w {
|
| 476 |
|
|
if {[selection own -displayof $w] == "$w"} {
|
| 477 |
|
|
clipboard clear -displayof $w
|
| 478 |
|
|
catch {clipboard append -displayof $w [selection get -displayof $w]}
|
| 479 |
|
|
}
|
| 480 |
|
|
}
|
| 481 |
|
|
|
| 482 |
|
|
# tk_tableCut --
|
| 483 |
|
|
# This procedure copies the selection from a table widget into the
|
| 484 |
|
|
# clipboard, then deletes the selection (if it exists in the given
|
| 485 |
|
|
# widget).
|
| 486 |
|
|
#
|
| 487 |
|
|
# Arguments:
|
| 488 |
|
|
# w - Name of a table widget.
|
| 489 |
|
|
|
| 490 |
|
|
proc tk_tableCut w {
|
| 491 |
|
|
if {[selection own -displayof $w] == "$w"} {
|
| 492 |
|
|
clipboard clear -displayof $w
|
| 493 |
|
|
catch {
|
| 494 |
|
|
clipboard append -displayof $w [selection get -displayof $w]
|
| 495 |
|
|
$w cursel set {}
|
| 496 |
|
|
$w selection clear all
|
| 497 |
|
|
}
|
| 498 |
|
|
}
|
| 499 |
|
|
}
|
| 500 |
|
|
|
| 501 |
|
|
# tk_tablePaste --
|
| 502 |
|
|
# This procedure pastes the contents of the clipboard to the specified
|
| 503 |
|
|
# cell (active by default) in a table widget.
|
| 504 |
|
|
#
|
| 505 |
|
|
# Arguments:
|
| 506 |
|
|
# w - Name of a table widget.
|
| 507 |
|
|
# cell - Cell to start pasting in.
|
| 508 |
|
|
|
| 509 |
|
|
proc tk_tablePaste {w {cell {}}} {
|
| 510 |
|
|
if {[string compare {} $cell]} {
|
| 511 |
|
|
if {[catch {selection get -displayof $w} data]} return
|
| 512 |
|
|
} else {
|
| 513 |
|
|
if {[catch {selection get -displayof $w -selection CLIPBOARD} data]} {
|
| 514 |
|
|
return
|
| 515 |
|
|
}
|
| 516 |
|
|
set cell active
|
| 517 |
|
|
}
|
| 518 |
|
|
tk_tablePasteHandler $w [$w index $cell] $data
|
| 519 |
|
|
if {[$w cget -state] == "normal"} {focus $w}
|
| 520 |
|
|
}
|
| 521 |
|
|
|
| 522 |
|
|
# tk_tablePasteHandler --
|
| 523 |
|
|
# This procedure handles how data is pasted into the table widget.
|
| 524 |
|
|
# This handles data in the default table selection form.
|
| 525 |
|
|
# NOTE: this allows pasting into all cells, even those with -state disabled
|
| 526 |
|
|
#
|
| 527 |
|
|
# Arguments:
|
| 528 |
|
|
# w - Name of a table widget.
|
| 529 |
|
|
# cell - Cell to start pasting in.
|
| 530 |
|
|
|
| 531 |
|
|
proc tk_tablePasteHandler {w cell data} {
|
| 532 |
|
|
set rows [expr {[$w cget -rows]-[$w cget -roworigin]}]
|
| 533 |
|
|
set cols [expr {[$w cget -cols]-[$w cget -colorigin]}]
|
| 534 |
|
|
set r [$w index $cell row]
|
| 535 |
|
|
set c [$w index $cell col]
|
| 536 |
|
|
set rsep [$w cget -rowseparator]
|
| 537 |
|
|
set csep [$w cget -colseparator]
|
| 538 |
|
|
## Assume separate rows are split by row separator if specified
|
| 539 |
|
|
## If you were to want multi-character row separators, you would need:
|
| 540 |
|
|
# regsub -all $rsep $data <newline> data
|
| 541 |
|
|
# set data [join $data <newline>]
|
| 542 |
|
|
if {[string comp {} $rsep]} { set data [split $data $rsep] }
|
| 543 |
|
|
set row $r
|
| 544 |
|
|
foreach line $data {
|
| 545 |
|
|
if {$row > $rows} break
|
| 546 |
|
|
set col $c
|
| 547 |
|
|
## Assume separate cols are split by col separator if specified
|
| 548 |
|
|
## Unless a -separator was specified
|
| 549 |
|
|
if {[string comp {} $csep]} { set line [split $line $csep] }
|
| 550 |
|
|
## If you were to want multi-character col separators, you would need:
|
| 551 |
|
|
# regsub -all $csep $line <newline> line
|
| 552 |
|
|
# set line [join $line <newline>]
|
| 553 |
|
|
foreach item $line {
|
| 554 |
|
|
if {$col > $cols} break
|
| 555 |
|
|
$w set $row,$col $item
|
| 556 |
|
|
incr col
|
| 557 |
|
|
}
|
| 558 |
|
|
incr row
|
| 559 |
|
|
}
|
| 560 |
|
|
}
|
