run.lua

   1 run = {}
   2
   3 Editor_state = {}
   4
   5 -- called both in tests and real run
   6 function run.initialize_globals()
   7   -- tests currently mostly clear their own state
   8
   9   -- blinking cursor
  10   Cursor_time = 0
  11 end
  12
  13 -- called only for real run
  14 function run.initialize(arg)
  15   log_new('run')
  16   if Settings then
  17     run.load_settings()
  18   else
  19     run.initialize_default_settings()
  20   end
  21
  22   if #arg > 0 then
  23     Editor_state.filename = arg[1]
  24     load_from_disk(Editor_state)
  25     Text.redraw_all(Editor_state)
  26     Editor_state.screen_top1 = {line=1, pos=1}
  27     Editor_state.cursor1 = {line=1, pos=1}
  28   else
  29     load_from_disk(Editor_state)
  30     Text.redraw_all(Editor_state)
  31   end
  32   edit.check_locs(Editor_state)
  33
  34
  35
  36   -- keep a few blank lines around: https://merveilles.town/@akkartik/110084833821965708
  37   love.window.setTitle('lines.love - '..Editor_state.filename)
  38
  39
  40
  41   if #arg > 1 then
  42     print('ignoring commandline args after '..arg[1])
  43   end
  44
  45   if rawget(_G, 'jit') then
  46     jit.off()
  47     jit.flush()
  48   end
  49 end
  50
  51 function run.load_settings()
  52   love.graphics.setFont(love.graphics.newFont(Settings.font_height))
  53   -- determine default dimensions and flags
  54   App.screen.width, App.screen.height, App.screen.flags = App.screen.size()
  55   -- set up desired window dimensions
  56   App.screen.flags.resizable = true
  57   App.screen.flags.minwidth = math.min(App.screen.width, 200)
  58   App.screen.flags.minheight = math.min(App.screen.height, 200)
  59   App.screen.width, App.screen.height = Settings.width, Settings.height
  60   App.screen.resize(App.screen.width, App.screen.height, App.screen.flags)
  61   App.screen.move(Settings.x, Settings.y, Settings.displayindex)
  62   Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right, Settings.font_height, math.floor(Settings.font_height*1.3))
  63   Editor_state.filename = Settings.filename
  64   Editor_state.screen_top1 = Settings.screen_top
  65   Editor_state.cursor1 = Settings.cursor
  66 end
  67
  68 function run.initialize_default_settings()
  69   local font_height = 20
  70   love.graphics.setFont(love.graphics.newFont(font_height))
  71   run.initialize_window_geometry(App.width('m'))
  72   Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right)
  73   Editor_state.font_height = font_height
  74   Editor_state.line_height = math.floor(font_height*1.3)
  75   Settings = run.settings()
  76 end
  77
  78 function run.initialize_window_geometry(em_width)
  79   local os = love.system.getOS()
  80   if os == 'Android' or os == 'iOS' then
  81     -- maximizing on iOS breaks text rendering: https://github.com/deltadaedalus/vudu/issues/7
  82     -- no point second-guessing window dimensions on mobile
  83     App.screen.width, App.screen.height, App.screen.flags = App.screen.size()
  84     return
  85   end
  86   -- maximize window
  87   App.screen.resize(0, 0)  -- maximize
  88   App.screen.width, App.screen.height, App.screen.flags = App.screen.size()
  89   -- shrink height slightly to account for window decoration
  90   App.screen.height = App.screen.height-100
  91   App.screen.width = 40*em_width
  92   App.screen.flags.resizable = true
  93   App.screen.flags.minwidth = math.min(App.screen.width, 200)
  94   App.screen.flags.minheight = math.min(App.screen.height, 200)
  95   App.screen.resize(App.screen.width, App.screen.height, App.screen.flags)
  96 end
  97
  98 function run.resize(w, h)
  99 --?   print(("Window resized to width: %d and height: %d."):format(w, h))
 100   App.screen.width, App.screen.height = w, h
 101   Text.redraw_all(Editor_state)
 102   Editor_state.selection1 = {}  -- no support for shift drag while we're resizing
 103   Editor_state.right = App.screen.width-Margin_right
 104   Editor_state.width = Editor_state.right-Editor_state.left
 105   Text.tweak_screen_top_and_cursor(Editor_state, Editor_state.left, Editor_state.right)
 106 end
 107
 108 function run.file_drop(file)
 109   -- first make sure to save edits on any existing file
 110   if Editor_state.next_save then
 111     save_to_disk(Editor_state)
 112   end
 113   -- clear the slate for the new file
 114   App.initialize_globals()
 115   Editor_state.filename = file:getFilename()
 116   file:open('r')
 117   Editor_state.lines = load_from_file(file)
 118   file:close()
 119   Text.redraw_all(Editor_state)
 120   Editor_state.screen_top1 = {line=1, pos=1}
 121   Editor_state.cursor1 = {line=1, pos=1}
 122
 123
 124
 125   -- keep a few blank lines around: https://merveilles.town/@akkartik/110084833821965708
 126   love.window.setTitle('lines.love - '..Editor_state.filename)
 127
 128
 129
 130 end
 131
 132 function run.draw()
 133   edit.draw(Editor_state)
 134 end
 135
 136 function run.update(dt)
 137   Cursor_time = Cursor_time + dt
 138   edit.update(Editor_state, dt)
 139 end
 140
 141 function run.quit()
 142   edit.quit(Editor_state)
 143 end
 144
 145 function run.settings()
 146   if Settings == nil then
 147     Settings = {}
 148   end
 149   if Current_app == 'run' then
 150     Settings.x, Settings.y, Settings.displayindex = App.screen.position()
 151   end
 152   local filename = Editor_state.filename
 153   if is_relative_path(filename) then
 154     filename = love.filesystem.getWorkingDirectory()..'/'..filename  -- '/' should work even on Windows
 155   end
 156   return {
 157     x=Settings.x, y=Settings.y, displayindex=Settings.displayindex,
 158     width=App.screen.width, height=App.screen.height,
 159     font_height=Editor_state.font_height,
 160     filename=filename,
 161     screen_top=Editor_state.screen_top1, cursor=Editor_state.cursor1
 162   }
 163 end
 164
 165 function run.mouse_press(x,y, mouse_button)
 166   Cursor_time = 0  -- ensure cursor is visible immediately after it moves
 167   return edit.mouse_press(Editor_state, x,y, mouse_button)
 168 end
 169
 170 function run.mouse_release(x,y, mouse_button)
 171   Cursor_time = 0  -- ensure cursor is visible immediately after it moves
 172   return edit.mouse_release(Editor_state, x,y, mouse_button)
 173 end
 174
 175 function run.mouse_wheel_move(dx,dy)
 176   Cursor_time = 0  -- ensure cursor is visible immediately after it moves
 177   return edit.mouse_wheel_move(Editor_state, dx,dy)
 178 end
 179
 180 function run.text_input(t)
 181   Cursor_time = 0  -- ensure cursor is visible immediately after it moves
 182   return edit.text_input(Editor_state, t)
 183 end
 184
 185 function run.keychord_press(chord, key)
 186   Cursor_time = 0  -- ensure cursor is visible immediately after it moves
 187   return edit.keychord_press(Editor_state, chord, key)
 188 end
 189
 190 function run.key_release(key, scancode)
 191   Cursor_time = 0  -- ensure cursor is visible immediately after it moves
 192   return edit.key_release(Editor_state, key, scancode)
 193 end
 194
 195 function width(s)
 196   return love.graphics.getFont():getWidth(s)
 197 end