|
0
|
1 local Luan = require "luan:Luan.luan"
|
|
|
2 local error = Luan.error
|
|
3
|
3 local ipairs = Luan.ipairs or error()
|
|
0
|
4 local Io = require "luan:Io.luan"
|
|
|
5 local print = Io.print or error()
|
|
3
|
6 local new_file = Io.schemes.file or error()
|
|
7
|
7 local Math = require "luan:Math.luan"
|
|
|
8 local min = Math.min or error()
|
|
0
|
9 local Swing = require "luan:swing/Swing.luan"
|
|
|
10 local new_frame = require("luan:swing/Frame.luan").new or error()
|
|
|
11 local new_label = require("luan:swing/Label.luan").new or error()
|
|
|
12 local new_text_area = require("luan:swing/Text_area.luan").new or error()
|
|
|
13 local new_scroll_pane = require("luan:swing/Scroll_pane.luan").new or error()
|
|
11
|
14 local List = require "luan:swing/List.luan"
|
|
|
15 local new_default_list = List.new_default_list or error()
|
|
|
16 local new_text_area_line_numbers = List.new_text_area_line_numbers or error()
|
|
0
|
17 local new_menu_bar = require("luan:swing/Menu_bar.luan").new or error()
|
|
|
18 local new_menu = require("luan:swing/Menu.luan").new or error()
|
|
|
19 local new_menu_item = require("luan:swing/Menu_item.luan").new or error()
|
|
2
|
20 local new_check_box_menu_item = require("luan:swing/Check_box_menu_item.luan").new or error()
|
|
12
|
21 local int_to_color = require("luan:swing/Color.luan").int_to_color or error()
|
|
0
|
22 local Logging = require "luan:logging/Logging.luan"
|
|
|
23 local logger = Logging.logger "editor"
|
|
|
24
|
|
|
25
|
|
|
26 local new_window
|
|
|
27
|
|
1
|
28 local function make_menu_bar(window)
|
|
0
|
29 local menu_bar = new_menu_bar()
|
|
4
|
30 do
|
|
1
|
31 local file_menu = new_menu()
|
|
|
32 file_menu.text = "File"
|
|
4
|
33 do
|
|
1
|
34 local new_file = new_menu_item()
|
|
|
35 new_file.text = "New File"
|
|
|
36 new_file.accelerator = "meta N"
|
|
5
|
37 new_file.add_action_listener(new_window)
|
|
1
|
38 file_menu.add(new_file)
|
|
4
|
39 end
|
|
|
40 do
|
|
1
|
41 local open = new_menu_item()
|
|
|
42 open.text = "Open..."
|
|
|
43 open.accelerator = "meta O"
|
|
5
|
44 open.add_action_listener(window.open)
|
|
1
|
45 file_menu.add(open)
|
|
4
|
46 end
|
|
10
|
47 local revert
|
|
4
|
48 do
|
|
|
49 local save = new_menu_item()
|
|
|
50 save.text = "Save"
|
|
|
51 save.accelerator = "meta S"
|
|
7
|
52 save.add_action_listener(function()
|
|
|
53 if window.save() then
|
|
|
54 revert.set_enabled(true)
|
|
|
55 end
|
|
|
56 end)
|
|
4
|
57 file_menu.add(save)
|
|
|
58 end
|
|
7
|
59 do
|
|
|
60 revert = new_menu_item()
|
|
|
61 revert.text = "Revert"
|
|
|
62 revert.set_enabled(window.has_file)
|
|
|
63 revert.add_action_listener(window.revert)
|
|
|
64 file_menu.add(revert)
|
|
|
65 end
|
|
1
|
66 menu_bar.add(file_menu)
|
|
4
|
67 end
|
|
|
68 do
|
|
6
|
69 local edit_menu = new_menu()
|
|
|
70 edit_menu.text = "Edit"
|
|
9
|
71 local document = window.text_area.document
|
|
|
72 local undo, redo
|
|
|
73 do
|
|
|
74 undo = new_menu_item()
|
|
|
75 undo.text = "Undo"
|
|
|
76 undo.accelerator = "meta Z"
|
|
10
|
77 undo.add_action_listener(document.undo)
|
|
9
|
78 edit_menu.add(undo)
|
|
|
79 end
|
|
|
80 do
|
|
|
81 redo = new_menu_item()
|
|
|
82 redo.text = "Redo"
|
|
|
83 redo.accelerator = "meta shift Z"
|
|
10
|
84 redo.add_action_listener(document.redo)
|
|
9
|
85 edit_menu.add(redo)
|
|
|
86 end
|
|
10
|
87 local function update_undo_redo()
|
|
|
88 undo.set_enabled(document.can_undo())
|
|
|
89 redo.set_enabled(document.can_redo())
|
|
|
90 end
|
|
11
|
91 edit_menu.dont_gc(update_undo_redo)
|
|
9
|
92 update_undo_redo()
|
|
10
|
93 document.add_undo_listener(update_undo_redo)
|
|
9
|
94 edit_menu.add_separator()
|
|
6
|
95 do
|
|
|
96 local cut = new_menu_item()
|
|
|
97 cut.text = "Cut"
|
|
|
98 cut.accelerator = "meta X"
|
|
|
99 cut.add_action_listener(window.text_area.cut)
|
|
|
100 edit_menu.add(cut)
|
|
|
101 end
|
|
|
102 do
|
|
|
103 local copy = new_menu_item()
|
|
|
104 copy.text = "Copy"
|
|
|
105 copy.accelerator = "meta C"
|
|
|
106 copy.add_action_listener(window.text_area.copy)
|
|
|
107 edit_menu.add(copy)
|
|
|
108 end
|
|
|
109 do
|
|
|
110 local paste = new_menu_item()
|
|
|
111 paste.text = "Paste"
|
|
|
112 paste.accelerator = "meta V"
|
|
|
113 paste.add_action_listener(window.text_area.paste)
|
|
|
114 edit_menu.add(paste)
|
|
|
115 end
|
|
|
116 edit_menu.add_separator()
|
|
|
117 do
|
|
|
118 local select_all = new_menu_item()
|
|
|
119 select_all.text = "Select All"
|
|
|
120 select_all.accelerator = "meta A"
|
|
|
121 select_all.add_action_listener(window.text_area.select_all)
|
|
|
122 edit_menu.add(select_all)
|
|
|
123 end
|
|
|
124 menu_bar.add(edit_menu)
|
|
|
125 end
|
|
|
126 do
|
|
2
|
127 local view_menu = new_menu()
|
|
|
128 view_menu.text = "View"
|
|
4
|
129 do
|
|
2
|
130 local word_wrap = new_check_box_menu_item()
|
|
|
131 word_wrap.text = "Word Wrap"
|
|
|
132 word_wrap.state = window.text_area.line_wrap
|
|
|
133 word_wrap.add_action_listener(function()
|
|
|
134 window.text_area.line_wrap = word_wrap.state
|
|
|
135 end)
|
|
|
136 view_menu.add(word_wrap)
|
|
4
|
137 end
|
|
2
|
138 menu_bar.add(view_menu)
|
|
4
|
139 end
|
|
0
|
140 return menu_bar
|
|
|
141 end
|
|
|
142
|
|
|
143 local n_windows = 0
|
|
5
|
144 local documents = {}
|
|
0
|
145
|
|
1
|
146 function new_window(file)
|
|
5
|
147 local window = {}
|
|
7
|
148 window.has_file = file~=nil and file.is_file()
|
|
0
|
149 local frame = new_frame()
|
|
5
|
150 local title = file and file.canonical().to_string() or "new"
|
|
0
|
151 frame.add_close_listener(function()
|
|
|
152 n_windows = n_windows - 1
|
|
|
153 if n_windows == 0 then
|
|
|
154 Luan.exit()
|
|
|
155 end
|
|
|
156 end)
|
|
|
157 local text_area = new_text_area()
|
|
5
|
158 window.text_area = text_area
|
|
|
159 if file ~= nil then
|
|
|
160 local document = documents[title]
|
|
|
161 if document == nil then
|
|
|
162 documents[title] = text_area.document
|
|
|
163 else
|
|
|
164 text_area.document = document
|
|
|
165 end
|
|
|
166 if file.is_file() then
|
|
|
167 text_area.text = file.read_text()
|
|
|
168 end
|
|
1
|
169 end
|
|
10
|
170 local function set_title()
|
|
|
171 local s = title
|
|
|
172 if not text_area.document.is_unedited() then
|
|
|
173 s = s.." *"
|
|
|
174 end
|
|
|
175 frame.title = s
|
|
|
176 end
|
|
|
177 set_title()
|
|
11
|
178 text_area.dont_gc(set_title)
|
|
10
|
179 text_area.document.add_undo_listener(set_title)
|
|
0
|
180 text_area.rows = 10
|
|
|
181 text_area.columns = 20
|
|
|
182 text_area.wrap_style_word = true
|
|
|
183 text_area.line_wrap = true
|
|
|
184 text_area.tab_size = 4
|
|
|
185 text_area.set_font{ family="Monospaced", size=13 }
|
|
7
|
186 text_area.caret_position = 0
|
|
0
|
187 --print(text_area.line_count)
|
|
|
188 local scroll_pane = new_scroll_pane(text_area)
|
|
11
|
189 local list = new_text_area_line_numbers(text_area)
|
|
12
|
190 list.foreground_color = int_to_color(0x888888)
|
|
11
|
191 --print(list.size)
|
|
|
192 scroll_pane.set_row_header_view(list)
|
|
0
|
193 frame.add(scroll_pane)
|
|
5
|
194 function window.open()
|
|
|
195 local file_chooser = frame.file_chooser_load()
|
|
|
196 if file ~= nil then
|
|
|
197 file_chooser.directory = file.parent()
|
|
|
198 end
|
|
|
199 file_chooser.visible = true
|
|
|
200 local new_file = file_chooser.file
|
|
|
201 if new_file ~= nil then
|
|
|
202 new_window(new_file)
|
|
|
203 end
|
|
|
204 end
|
|
|
205 function window.save()
|
|
|
206 if file == nil then
|
|
|
207 local file_chooser = frame.file_chooser_save()
|
|
|
208 file_chooser.visible = true
|
|
|
209 file = file_chooser.file
|
|
|
210 if file == nil then
|
|
7
|
211 return false
|
|
5
|
212 end
|
|
|
213 title = file.canonical().to_string()
|
|
|
214 frame.title = title
|
|
|
215 documents[title] = text_area.document
|
|
|
216 end
|
|
|
217 file.write_text(text_area.text)
|
|
10
|
218 text_area.document.set_unedited()
|
|
7
|
219 return true
|
|
|
220 end
|
|
|
221 function window.revert()
|
|
|
222 local caret_position = text_area.caret_position
|
|
|
223 local text = file.read_text()
|
|
|
224 text_area.text = text
|
|
|
225 text_area.caret_position = min(caret_position,#text)
|
|
10
|
226 text_area.document.set_unedited()
|
|
5
|
227 end
|
|
1
|
228 local menu_bar = make_menu_bar(window)
|
|
0
|
229 frame.set_menu_bar(menu_bar)
|
|
|
230 frame.pack()
|
|
|
231 frame.visible = true
|
|
|
232 text_area.request_focus_in_window()
|
|
|
233 n_windows = n_windows + 1
|
|
|
234 end
|
|
|
235
|
|
1
|
236 Swing.run(function()
|
|
3
|
237 local args = Luan.arg
|
|
|
238 if #args == 0 then
|
|
|
239 new_window()
|
|
|
240 else
|
|
|
241 for _, arg in ipairs(args) do
|
|
|
242 local file = new_file(arg)
|
|
|
243 new_window(file)
|
|
|
244 end
|
|
|
245 end
|
|
1
|
246 end)
|
