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