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37
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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 local stringify = Luan.stringify or error()
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4 local Math = require "luan:Math.luan"
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5 local min = Math.min or error()
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6 local String = require "luan:String.luan"
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7 local sub_string = String.sub or error()
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8 local replace = String.replace or error()
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9 local starts_with = String.starts_with or error()
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10 local Io = require "luan:Io.luan"
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11 local new_text_area = require("luan:swing/Text_area.luan").new or error()
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12 local new_frame = require("luan:swing/Frame.luan").new or error()
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41
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13 local new_dialog = require("luan:swing/Dialog.luan").new or error()
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37
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14 local new_panel = require("luan:swing/Component.luan").new_panel or error()
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15 local Layout = require "luan:swing/Layout.luan"
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16 local new_mig_layout = Layout.new_mig_layout or error()
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17 local new_scroll_pane = require("luan:swing/Scroll_pane.luan").new or error()
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18 local new_text_area_line_numbers = require("luan:swing/Text_area_line_numbers.luan").new or error()
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19 local int_to_color = require("luan:swing/Color.luan").int_to_color or error()
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20 local Border = require "luan:swing/Border.luan"
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21 local create_empty_border = Border.create_empty_border or error()
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22 local new_label = require("luan:swing/Label.luan").new or error()
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23 local make_find_panel = require "classpath:luan_editor/find.luan"
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24 local add_menu_bar = require "classpath:luan_editor/menu.luan"
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25 local Swing = require "luan:swing/Swing.luan"
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44
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26 local run_later = Swing.run_later or error()
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37
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27 local File_chooser = require "luan:swing/File_chooser.luan"
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28 local choose_file = File_chooser.awt_choose_file or error()
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39
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29 local Option_pane = require "luan:swing/Option_pane.luan"
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30 local show_message_dialog = Option_pane.show_message_dialog or error()
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41
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31 local new_radio_button = require("luan:swing/Radio_button.luan").new or error()
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32 local new_button_group = require("luan:swing/Button_group.luan").new or error()
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37
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33 local Logging = require "luan:logging/Logging.luan"
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34 local logger = Logging.logger "editor/window"
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35
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36
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37 local n_windows = 0
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38 local documents = {}
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39
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40 local function bool(val,default)
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41 if val ~= nil then
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42 return val
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43 else
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44 return default
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45 end
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46 end
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47
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48 local config_file = Io.uri("file:"..Swing.home_dir.."/.luan_editor")
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49 local config = {}
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50 if config_file.exists() then
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51 try
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52 config = Luan.parse(config_file.read_text())
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53 catch e
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54 logger.error(e)
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55 end
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56 end
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57 config.size = config.size or { width=700, height=700 }
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58 config.line_wrap = bool( config.line_wrap, true )
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59 config.whitespace_visible = bool( config.whitespace_visible, false )
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60 config.tab_size = config.tab_size or 4
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61
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62 local function save_config()
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63 config_file.write_text( stringify(config).."\n" )
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64 end
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65
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41
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66 local list_view = new_panel{
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67 --layout = new_mig_layout("insets 0,wrap,fill")
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44
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68 layout = new_mig_layout("wrap","[grow]")
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41
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69 }
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70 local list_scroll_pane = new_scroll_pane{
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71 view = list_view
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72 }
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73 local list_window = new_dialog{
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44
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74 --preferred_size = { width=200, height=400 }
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75 size = { width=200, height=400 }
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76 --maximum_size = { width=200, height=400 }
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41
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77 content_pane = list_scroll_pane
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43
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78 focusable_window_state = false
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41
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79 }
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44
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80 local function show_list_window()
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81 list_window.visible = true
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82 list_scroll_pane.scroll_to_right()
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83 end
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84
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41
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85 local list_group = new_button_group()
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42
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86
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41
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87 local function new_list_window_item(text)
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88 local rb = new_radio_button{
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89 constraints = "grow"
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90 text = text
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91 horizontal_text_position = "left"
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92 horizontal_alignment = "right"
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93 }
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94 list_view.add(rb)
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95 list_group.add(rb)
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96 list_scroll_pane.scroll_to_right()
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44
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97 list_window.validate()
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41
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98 return rb
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99 end
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42
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100 local function remove_list_window_item(list_window_item)
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101 list_view.remove(list_window_item)
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102 list_group.remove(list_window_item)
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44
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103 list_window.validate()
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42
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104 end
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41
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105
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44
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106 local black = int_to_color(0x000000)
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107 local blue = int_to_color(0x0000FF)
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108 local grey = int_to_color(0x888888)
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109
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38
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110 local function new_window(file,document)
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37
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111 local window = {}
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39
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112 if file == nil or not file.exists() then
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113 window.has_file = false
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114 elseif file.is_file() then
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115 window.has_file = true
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116 else
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117 show_message_dialog(nil,"Not a file")
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118 if n_windows == 0 then
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119 Luan.exit()
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120 else
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121 return
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122 end
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123 end
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124 window.has_file = file~=nil and file.exists()
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37
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125 local text_area = new_text_area{
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126 wrap_style_word = true
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127 line_wrap = config.line_wrap
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128 whitespace_visible = config.whitespace_visible
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129 tab_size = config.tab_size
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130 font = { family="Monospaced", size=13 }
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131 }
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132 window.text_area = text_area
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133 local title = file and file.canonical().to_string() or "new"
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38
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134 if document ~= nil then
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135 text_area.document = document
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136 elseif file ~= nil then
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37
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137 local document = documents[title]
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39
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138 if document ~= nil then
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37
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139 text_area.document = document
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39
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140 else
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141 documents[title] = text_area.document
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142 if file.exists() then
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143 text_area.text = file.read_text()
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144 text_area.document.clear_unedited()
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145 end
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37
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146 end
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147 end
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148 text_area.set_selection(0)
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44
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149 local list_window_item = new_list_window_item(title)
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150 list_window_item.add_action_listener(function(_)
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151 text_area.request_focus()
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152 end)
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153 --window.list_window_item = list_window_item
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37
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154 local status_bar = new_label{
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155 constraints = "span,growx"
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156 text = " "
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157 border = create_empty_border(2,16,4,16)
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158 }
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159 window.status_bar = status_bar
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160 local find_panel = make_find_panel(window)
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161 local frame = new_frame{
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162 preferred_size = config.size
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163 content_pane = new_panel{
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164 layout = new_mig_layout("insets 0,wrap,fill,hidemode 3","","[][grow 0]")
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165 children = {
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166 new_scroll_pane{
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167 constraints = "grow"
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168 view = text_area
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169 row_header_view = new_text_area_line_numbers{
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170 text_area = text_area
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44
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171 foreground_color = grey
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37
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172 border = create_empty_border(0,8,0,8)
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173 }
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174 }
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175 find_panel
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176 status_bar
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177 }
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178 }
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179 }
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180 window.frame = frame
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181 frame.add_close_listener(function()
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182 n_windows = n_windows - 1
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183 if n_windows == 0 then
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184 Luan.exit()
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185 end
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44
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186 remove_list_window_item(list_window_item)
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37
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187 end)
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43
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188 frame.add_window_focus_listener(function()
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44
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189 list_window_item.is_selected = true
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190 list_window_item.scroll_into_view_vertically()
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43
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191 end)
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37
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192 frame.add_resize_stopped_listener( 200, function()
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193 --logger.info(stringify(frame.size))
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194 config.size = frame.size
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195 save_config()
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196 end)
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197 frame.add_move_stopped_listener( 200, function()
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198 --logger.info(stringify(frame.location))
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199 config.location = frame.location
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200 save_config()
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201 end)
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44
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202 local function undo_listener()
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203 local is_unedited = text_area.document.is_unedited()
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204 if window.is_unedited == is_unedited then
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205 return
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206 end
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207 window.is_unedited = is_unedited
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37
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208 local s = title
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44
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209 if not is_unedited then
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37
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210 s = s.." *"
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211 end
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212 frame.title = s
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44
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213 list_window_item.foreground_color = is_unedited and black or blue
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37
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214 end
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44
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215 undo_listener()
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216 --window.undo_listener = undo_listener -- dont gc
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217 text_area.document.add_undo_listener(undo_listener)
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37
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218 window.new = new_window
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219 function window.open()
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220 local new_file = choose_file{
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221 action = "load"
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222 parent = frame
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223 directory = file and file.parent()
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224 }
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225 if new_file ~= nil then
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226 new_window(new_file)
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227 end
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228 end
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229 function window.save()
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230 if file == nil then
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231 file = choose_file{
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232 action = "save"
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233 parent = frame
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234 }
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235 if file == nil then
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236 return false
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237 end
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238 title = file.canonical().to_string()
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239 frame.title = title
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240 documents[title] = text_area.document
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241 end
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39
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242 try
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243 file.write_text(text_area.text)
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244 catch e
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245 show_message_dialog( frame, e.get_message() )
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246 return false
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247 end
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37
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248 text_area.document.set_unedited()
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249 return true
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250 end
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251 function window.revert()
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252 local selection = text_area.get_selection()
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253 local text = file.read_text()
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254 text_area.text = text
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255 text_area.set_selection(min(selection,#text+1))
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256 text_area.document.set_unedited()
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257 status_bar.text = "Reverted"
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258 end
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259 local function selection_lines()
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260 local start_seletion, end_selection = text_area.get_selection()
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261 local end_ = end_selection == start_seletion and end_selection or end_selection - 1
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262 local start_line = text_area.get_line_from_position(start_seletion)
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263 local end_line = text_area.get_line_from_position(end_)
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264 local start_pos = text_area.get_line_start_position(start_line)
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265 local end_pos = text_area.get_line_end_position(end_line)
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266 local text = text_area.text
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267 text = sub_string(text,start_pos,end_pos-2)
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268 return {
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269 text = text
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270 start_pos = start_pos
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271 length = #text
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272 lines = end_line - start_line + 1
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273 start_seletion = start_seletion
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274 end_selection = end_selection
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275 }
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276 end
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277 function window.indent()
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278 local r = selection_lines()
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279 local text = r.text
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280 local start_pos = r.start_pos
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281 text = "\t"..replace(text,"\n","\n\t")
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282 text_area.replace(start_pos,r.length,text)
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283 --logger.info(stringify{text_area.get_selection()})
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284 text_area.set_selection( r.start_seletion+1, r.end_selection+r.lines )
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285 end
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286 function window.unindent()
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287 local r = selection_lines()
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288 local text = r.text
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289 text = "\n"..text
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290 local start_seletion = r.start_seletion
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291 if starts_with(text,"\n\t") then
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292 start_seletion = start_seletion - 1
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293 end
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294 local len1 = #text
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295 text = replace(text,"\n\t","\n")
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296 local len2 = #text
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297 local end_selection = r.end_selection - (len1 - len2)
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298 text = sub_string(text,2)
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299 text_area.replace(r.start_pos,r.length,text)
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300 text_area.set_selection(start_seletion,end_selection)
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301 end
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302 function window.cursor_column()
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303 local cursor_pos = text_area.get_selection()
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304 local line = text_area.get_line_from_position(cursor_pos)
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305 local start_line_pos = text_area.get_line_start_position(line)
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306 return cursor_pos - start_line_pos + 1
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307 end
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308 function window.goto(line)
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309 local pos = text_area.get_line_start_position(line)
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310 text_area.set_selection(pos)
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311 end
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312 function window.set_line_wrap(line_wrap)
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313 text_area.line_wrap = line_wrap
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314 config.line_wrap = line_wrap
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315 save_config()
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316 end
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317 function window.set_whitespace_visible(whitespace_visible)
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318 text_area.whitespace_visible = whitespace_visible
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319 config.whitespace_visible = whitespace_visible
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320 save_config()
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321 end
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322 function window.set_tab_size(tab_size)
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323 text_area.tab_size = tab_size
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324 config.tab_size = tab_size
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325 save_config()
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326 end
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38
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327 function window.duplicate()
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328 local new = new_window(file,text_area.document)
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329 new.text_area.set_selection( text_area.get_selection() )
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330 end
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44
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331 window.show_list_window = show_list_window
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37
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332 add_menu_bar(window)
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333 frame.pack()
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334 if config.location ~= nil then
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335 frame.location = config.location
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336 end
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337 frame.visible = true
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338 text_area.request_focus_in_window()
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339 n_windows = n_windows + 1
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38
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340 return window
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37
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341 end
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342
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343 return new_window
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