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0
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1 local Luan = require "luan:Luan.luan"
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2 local error = Luan.error
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3
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3 local ipairs = Luan.ipairs or error()
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0
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4 local Io = require "luan:Io.luan"
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5 local print = Io.print or error()
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3
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6 local new_file = Io.schemes.file or error()
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0
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7 local Swing = require "luan:swing/Swing.luan"
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8 local new_frame = require("luan:swing/Frame.luan").new or error()
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9 local new_label = require("luan:swing/Label.luan").new or error()
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10 local new_text_area = require("luan:swing/Text_area.luan").new or error()
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11 local new_scroll_pane = require("luan:swing/Scroll_pane.luan").new or error()
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12 local new_list = require("luan:swing/List.luan").new or error()
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13 local new_menu_bar = require("luan:swing/Menu_bar.luan").new or error()
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14 local new_menu = require("luan:swing/Menu.luan").new or error()
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15 local new_menu_item = require("luan:swing/Menu_item.luan").new or error()
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2
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16 local new_check_box_menu_item = require("luan:swing/Check_box_menu_item.luan").new or error()
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0
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17 local Logging = require "luan:logging/Logging.luan"
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18 local logger = Logging.logger "editor"
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19
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20
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21 local new_window
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22
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1
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23 local function make_menu_bar(window)
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0
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24 local menu_bar = new_menu_bar()
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4
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25 do
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1
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26 local file_menu = new_menu()
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27 file_menu.text = "File"
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4
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28 do
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1
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29 local new_file = new_menu_item()
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30 new_file.text = "New File"
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31 new_file.accelerator = "meta N"
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5
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32 new_file.add_action_listener(new_window)
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1
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33 file_menu.add(new_file)
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4
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34 end
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35 do
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1
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36 local open = new_menu_item()
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37 open.text = "Open..."
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38 open.accelerator = "meta O"
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5
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39 open.add_action_listener(window.open)
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1
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40 file_menu.add(open)
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4
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41 end
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42 do
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43 local save = new_menu_item()
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44 save.text = "Save"
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45 save.accelerator = "meta S"
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5
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46 save.add_action_listener(window.save)
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4
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47 file_menu.add(save)
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48 end
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1
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49 menu_bar.add(file_menu)
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4
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50 end
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51 do
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2
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52 local view_menu = new_menu()
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53 view_menu.text = "View"
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4
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54 do
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2
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55 local word_wrap = new_check_box_menu_item()
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56 word_wrap.text = "Word Wrap"
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57 word_wrap.state = window.text_area.line_wrap
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58 word_wrap.add_action_listener(function()
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59 window.text_area.line_wrap = word_wrap.state
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60 end)
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61 view_menu.add(word_wrap)
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4
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62 end
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2
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63 menu_bar.add(view_menu)
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4
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64 end
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0
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65 return menu_bar
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66 end
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67
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68 local n_windows = 0
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5
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69 local documents = {}
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0
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70
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1
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71 function new_window(file)
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5
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72 local window = {}
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0
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73 local frame = new_frame()
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5
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74 local title = file and file.canonical().to_string() or "new"
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75 frame.title = title
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0
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76 frame.add_close_listener(function()
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77 n_windows = n_windows - 1
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78 if n_windows == 0 then
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79 Luan.exit()
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80 end
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81 end)
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82 local text_area = new_text_area()
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5
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83 window.text_area = text_area
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84 if file ~= nil then
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85 local document = documents[title]
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86 if document == nil then
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87 documents[title] = text_area.document
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88 else
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89 text_area.document = document
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90 end
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91 if file.is_file() then
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92 text_area.text = file.read_text()
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93 end
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1
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94 end
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0
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95 text_area.rows = 10
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96 text_area.columns = 20
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97 text_area.wrap_style_word = true
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98 text_area.line_wrap = true
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99 text_area.tab_size = 4
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100 text_area.set_font{ family="Monospaced", size=13 }
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1
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101 text_area.select(0,0)
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0
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102 --print(text_area.line_count)
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103 local scroll_pane = new_scroll_pane(text_area)
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104 local list = new_list()
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105 list.add_element("1")
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106 list.add_element("2")
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107 list.add_element("3")
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108 --scroll_pane.set_row_header_view(list)
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109 frame.add(scroll_pane)
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5
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110 function window.open()
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111 local file_chooser = frame.file_chooser_load()
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112 if file ~= nil then
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113 file_chooser.directory = file.parent()
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114 end
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115 file_chooser.visible = true
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116 local new_file = file_chooser.file
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117 if new_file ~= nil then
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118 new_window(new_file)
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119 end
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120 end
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121 function window.save()
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122 if file == nil then
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123 local file_chooser = frame.file_chooser_save()
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124 file_chooser.visible = true
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125 file = file_chooser.file
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126 if file == nil then
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127 return
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128 end
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129 title = file.canonical().to_string()
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130 frame.title = title
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131 documents[title] = text_area.document
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132 end
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133 file.write_text(text_area.text)
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134 end
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1
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135 local menu_bar = make_menu_bar(window)
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0
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136 frame.set_menu_bar(menu_bar)
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137 frame.pack()
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138 frame.visible = true
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139 text_area.request_focus_in_window()
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140 n_windows = n_windows + 1
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141 end
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142
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1
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143 Swing.run(function()
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3
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144 local args = Luan.arg
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145 if #args == 0 then
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146 new_window()
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147 else
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148 for _, arg in ipairs(args) do
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149 local file = new_file(arg)
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150 new_window(file)
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151 end
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152 end
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1
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153 end)
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