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-rw-r--r--git-gui/lib/line.tcl81
1 files changed, 81 insertions, 0 deletions
diff --git a/git-gui/lib/line.tcl b/git-gui/lib/line.tcl
new file mode 100644
index 0000000000..c160012de6
--- /dev/null
+++ b/git-gui/lib/line.tcl
@@ -0,0 +1,81 @@
+# goto line number
+# based on code from gitk, Copyright (C) Paul Mackerras
+
+class linebar {
+
+field w
+field ctext
+
+field linenum {}
+
+constructor new {i_w i_text args} {
+ global use_ttk NS
+ set w $i_w
+ set ctext $i_text
+
+ ${NS}::frame $w
+ ${NS}::label $w.l -text [mc "Goto Line:"]
+ entry $w.ent \
+ -textvariable ${__this}::linenum \
+ -background lightgreen \
+ -validate key \
+ -validatecommand [cb _validate %P]
+ ${NS}::button $w.bn -text [mc Go] -command [cb _goto]
+
+ pack $w.l -side left
+ pack $w.bn -side right
+ pack $w.ent -side left -expand 1 -fill x
+
+ eval grid conf $w -sticky we $args
+ grid remove $w
+
+ trace add variable linenum write [cb _goto_cb]
+ bind $w.ent <Return> [cb _goto]
+ bind $w.ent <Escape> [cb hide]
+
+ bind $w <Destroy> [list delete_this $this]
+ return $this
+}
+
+method show {} {
+ if {![visible $this]} {
+ grid $w
+ }
+ focus -force $w.ent
+}
+
+method hide {} {
+ if {[visible $this]} {
+ $w.ent delete 0 end
+ focus $ctext
+ grid remove $w
+ }
+}
+
+method visible {} {
+ return [winfo ismapped $w]
+}
+
+method editor {} {
+ return $w.ent
+}
+
+method _validate {P} {
+ # only accept numbers as input
+ string is integer $P
+}
+
+method _goto_cb {name ix op} {
+ after idle [cb _goto 1]
+}
+
+method _goto {{nohide {0}}} {
+ if {$linenum ne {}} {
+ $ctext see $linenum.0
+ if {!$nohide} {
+ hide $this
+ }
+ }
+}
+
+}