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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
type mode =
| Find
| Replace
class finder (view : GText.view) =
let widget = GPack.vbox () in
(* Find part *)
let find_box = GPack.hbox ~packing:widget#add () in
let _ =
GMisc.label ~text:"Find:"
~xalign:1.0
~packing:find_box#pack ()
in
let find_entry = GEdit.entry
~editable:true
~packing:(find_box#pack ~expand:true)
()
in
let next_button =
GButton.button
~label:"_Next"
~use_mnemonic:true
(* ~stock:`GO_DOWN *)
~packing:find_box#pack
()
in
let previous_button =
GButton.button
~label:"_Previous"
~use_mnemonic:true
(* ~stock:`GO_UP *)
~packing:find_box#pack
()
in
(* Find and replace part *)
let replace_box = GPack.table
~columns:4 ~rows:2
~homogeneous:false ~packing:widget#add () in
let _ =
GMisc.label ~text:"Find:"
~xalign:1.0
~packing:(replace_box#attach ~left:0 ~top:0 ~fill:`X) ()
in
let _ =
GMisc.label ~text:"Replace:"
~xalign:1.0
~packing:(replace_box#attach ~left:0 ~top:1 ~fill:`X) ()
in
let r_find_entry = GEdit.entry
~editable:true
~packing:(replace_box#attach ~left:1 ~top:0 ~expand:`X ~fill:`X)
()
in
let r_replace_entry = GEdit.entry
~editable:true
~packing:(replace_box#attach ~left:1 ~top:1 ~expand:`X ~fill:`X)
()
in
let r_next_button =
GButton.button
~label:"_Next" ~use_mnemonic:true
~packing:(replace_box#attach ~left:2 ~top:0)
()
in
let r_previous_button =
GButton.button
~label:"_Previous" ~use_mnemonic:true
~packing:(replace_box#attach ~left:3 ~top:0)
()
in
let r_replace_button =
GButton.button
~label:"_Replace" ~use_mnemonic:true
~packing:(replace_box#attach ~left:2 ~top:1)
()
in
let r_replace_all_button =
GButton.button
~label:"Replace _All" ~use_mnemonic:true
~packing:(replace_box#attach ~left:3 ~top:1)
()
in
object (self)
val mutable last_found = None
val mutable mode = Find
method coerce = widget#coerce
method private get_selected_word () =
let start = view#buffer#get_iter `INSERT in
let stop = view#buffer#get_iter `SEL_BOUND in
view#buffer#get_text ~start ~stop ()
method private may_replace () =
let search = self#search_text in
(search <> "") && (search = self#get_selected_word ())
method replace () =
if self#may_replace () then
let _ = view#buffer#delete_selection () in
let _ = view#buffer#insert_interactive r_replace_entry#text in
self#find_forward ()
else self#find_forward ()
method replace_all () =
let rec replace_at (iter : GText.iter) =
let found = iter#forward_search self#search_text in
match found with
| None -> ()
| Some (start, stop) ->
let start_mark = view#buffer#create_mark start in
let stop_mark = view#buffer#create_mark ~left_gravity:false stop in
let _ = view#buffer#delete_interactive ~start ~stop () in
let iter = view#buffer#get_iter_at_mark (`MARK start_mark) in
let _ = view#buffer#insert_interactive ~iter r_replace_entry#text in
let next = view#buffer#get_iter_at_mark (`MARK stop_mark) in
let () = view#buffer#delete_mark (`MARK start_mark) in
let () = view#buffer#delete_mark (`MARK stop_mark) in
replace_at next
in
replace_at view#buffer#start_iter
method private set_not_found () =
find_entry#misc#modify_base [`NORMAL, `NAME "#F7E6E6"];
r_find_entry#misc#modify_base [`NORMAL, `NAME "#F7E6E6"];
method private set_found () =
find_entry#misc#modify_base [`NORMAL, `NAME "#BAF9CE"];
r_find_entry#misc#modify_base [`NORMAL, `NAME "#BAF9CE"]
method private set_normal () =
find_entry#misc#modify_base [`NORMAL, `NAME "white"];
r_find_entry#misc#modify_base [`NORMAL, `NAME "white"]
method private find_from backward (starti : GText.iter) text =
let found =
if backward then
starti#backward_search text
else
starti#forward_search text
in
match found with
| None ->
if not backward && not (starti#equal view#buffer#start_iter) then
self#find_from backward view#buffer#start_iter text
else if backward && not (starti#equal view#buffer#end_iter) then
self#find_from backward view#buffer#end_iter text
else
self#set_not_found ()
| Some (start, stop) ->
let _ = view#buffer#select_range start stop in
let scroll = `MARK (view#buffer#create_mark stop) in
let _ = view#scroll_to_mark ~use_align:false scroll in
self#set_found ()
method find_forward () =
let starti = view#buffer#get_iter `SEL_BOUND in
self#find_from false starti self#search_text
method find_backward () =
let starti = view#buffer#get_iter `INSERT in
self#find_from true starti self#search_text
method private search_text = match mode with
| Find -> find_entry#text
| Replace -> r_find_entry#text
method hide () =
widget#misc#hide ();
view#coerce#misc#grab_focus ()
method show_find () =
mode <- Find;
let search =
if self#coerce#misc#visible then
r_find_entry#text
else
self#get_selected_word ()
in
self#set_normal ();
find_entry#set_text search;
widget#misc#show ();
find_box#misc#show ();
replace_box#misc#hide ();
find_entry#misc#grab_focus ()
method show_replace () =
mode <- Replace;
let search =
if self#coerce#misc#visible then
find_entry#text
else
self#get_selected_word ()
in
self#set_normal ();
r_find_entry#set_text search;
widget#misc#show ();
find_box#misc#hide ();
replace_box#misc#show ();
r_find_entry#misc#grab_focus ()
initializer
let _ = self#hide () in
let _ = next_button#connect#clicked self#find_forward in
let _ = previous_button#connect#clicked self#find_backward in
let _ = r_next_button#connect#clicked self#find_forward in
let _ = r_previous_button#connect#clicked self#find_backward in
let _ = r_replace_button#connect#clicked self#replace in
let _ = r_replace_all_button#connect#clicked self#replace_all in
()
end
|
