81 lines
1.3 KiB
Tcl
81 lines
1.3 KiB
Tcl
# goto line number
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# based on code from gitk, Copyright (C) Paul Mackerras
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class linebar {
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field w
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field ctext
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field linenum {}
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constructor new {i_w i_text args} {
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global use_ttk NS
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set w $i_w
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set ctext $i_text
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${NS}::frame $w
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${NS}::label $w.l -text [mc "Goto Line:"]
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tentry $w.ent \
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-textvariable ${__this}::linenum \
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-background lightgreen \
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-validate key \
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-validatecommand [cb _validate %P]
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${NS}::button $w.bn -text [mc Go] -command [cb _goto]
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pack $w.l -side left
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pack $w.bn -side right
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pack $w.ent -side left -expand 1 -fill x
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eval grid conf $w -sticky we $args
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grid remove $w
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trace add variable linenum write [cb _goto_cb]
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bind $w.ent <Return> [cb _goto]
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bind $w.ent <Escape> [cb hide]
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bind $w <Destroy> [list delete_this $this]
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return $this
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}
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method show {} {
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if {![visible $this]} {
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grid $w
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}
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focus -force $w.ent
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}
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method hide {} {
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if {[visible $this]} {
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$w.ent delete 0 end
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focus $ctext
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grid remove $w
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}
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}
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method visible {} {
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return [winfo ismapped $w]
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}
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method editor {} {
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return $w.ent
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}
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method _validate {P} {
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# only accept numbers as input
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string is integer $P
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}
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method _goto_cb {name ix op} {
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after idle [cb _goto 1]
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}
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method _goto {{nohide {0}}} {
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if {$linenum ne {}} {
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$ctext see $linenum.0
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if {!$nohide} {
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hide $this
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}
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}
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}
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}
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