267 lines
8.2 KiB
Lua
267 lines
8.2 KiB
Lua
utf8 = require 'utf8'
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json = require 'json'
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require 'app'
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require 'test'
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require 'keychord'
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require 'button'
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require 'main_tests'
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-- delegate most business logic to a layer that can be reused by other projects
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require 'edit'
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Editor_state = {}
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function App.version_check()
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Mode = 'version_check'
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Supported_versions = {'11.4', '11.3', '11.2', '11.1', '11.0'} -- keep these sorted in descending order
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local major, minor = love.getVersion()
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Version = major..'.'..minor
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if array.find(Supported_versions, Version) then
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Mode = 'run'
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end
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end
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-- called both in tests and real run
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function App.initialize_globals()
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-- tests currently mostly clear their own state
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-- blinking cursor
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Cursor_time = 0
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-- for hysteresis in a few places
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Current_time = 0
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Last_focus_time = 0 -- https://love2d.org/forums/viewtopic.php?p=249700
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Last_resize_time = 0
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end
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-- called only for real run
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function App.initialize(arg)
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love.keyboard.setTextInput(true) -- bring up keyboard on touch screen
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love.keyboard.setKeyRepeat(true)
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love.graphics.setBackgroundColor(1,1,1)
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if love.filesystem.getInfo('config') then
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load_settings()
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else
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initialize_default_settings()
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end
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if #arg > 0 then
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Editor_state.filename = arg[1]
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load_from_disk(Editor_state)
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Text.redraw_all(Editor_state)
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Editor_state.screen_top1 = {line=1, pos=1}
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Editor_state.cursor1 = {line=1, pos=1}
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else
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load_from_disk(Editor_state)
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Text.redraw_all(Editor_state)
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end
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edit.check_locs(Editor_state)
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-- keep a few blank lines around: https://merveilles.town/@akkartik/110084833821965708
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love.window.setTitle('text.love - '..Editor_state.filename)
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if #arg > 1 then
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print('ignoring commandline args after '..arg[1])
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end
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if rawget(_G, 'jit') then
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jit.off()
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jit.flush()
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end
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end
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function print_and_log(s)
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print(s)
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log(3, s)
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end
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function load_settings()
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local settings = json.decode(love.filesystem.read('config'))
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love.graphics.setFont(love.graphics.newFont(settings.font_height))
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-- set up desired window dimensions and make window resizable
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_, _, App.screen.flags = App.screen.size()
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App.screen.flags.resizable = true
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App.screen.width, App.screen.height = settings.width, settings.height
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App.screen.resize(App.screen.width, App.screen.height, App.screen.flags)
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set_window_position_from_settings(settings)
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Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right, settings.font_height, math.floor(settings.font_height*1.3))
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Editor_state.filename = settings.filename
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Editor_state.screen_top1 = settings.screen_top
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Editor_state.cursor1 = settings.cursor
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end
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function set_window_position_from_settings(settings)
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local os = love.system.getOS()
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if os == 'Linux' then
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-- love.window.setPosition doesn't quite seem to do what is asked of it on Linux.
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App.screen.move(settings.x, settings.y-37, settings.displayindex)
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else
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App.screen.move(settings.x, settings.y, settings.displayindex)
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end
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end
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function initialize_default_settings()
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local font_height = 20
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love.graphics.setFont(love.graphics.newFont(font_height))
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initialize_window_geometry()
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Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right)
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Editor_state.font_height = font_height
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Editor_state.line_height = math.floor(font_height*1.3)
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end
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function initialize_window_geometry()
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-- Initialize window width/height and make window resizable.
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--
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-- I get tempted to have opinions about window dimensions here, but they're
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-- non-portable:
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-- - maximizing doesn't work on mobile and messes things up
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-- - maximizing keeps the title bar on screen in Linux, but off screen on
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-- Windows. And there's no way to get the height of the title bar.
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-- It seems more robust to just follow LÖVE's default window size until
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-- someone overrides it.
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App.screen.width, App.screen.height, App.screen.flags = App.screen.size()
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App.screen.flags.resizable = true
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App.screen.resize(App.screen.width, App.screen.height, App.screen.flags)
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end
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function App.resize(w, h)
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--? print(("Window resized to width: %d and height: %d."):format(w, h))
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App.screen.width, App.screen.height = w, h
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Text.redraw_all(Editor_state)
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Editor_state.selection1 = {} -- no support for shift drag while we're resizing
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Editor_state.right = App.screen.width-Margin_right
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Editor_state.width = Editor_state.right-Editor_state.left
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Text.tweak_screen_top_and_cursor(Editor_state, Editor_state.left, Editor_state.right)
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Last_resize_time = Current_time
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end
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function App.filedropped(file)
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-- first make sure to save edits on any existing file
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if Editor_state.next_save then
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save_to_disk(Editor_state)
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end
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-- clear the slate for the new file
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App.initialize_globals()
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Editor_state.filename = file:getFilename()
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file:open('r')
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Editor_state.lines = load_from_file(file)
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file:close()
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Text.redraw_all(Editor_state)
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Editor_state.screen_top1 = {line=1, pos=1}
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Editor_state.cursor1 = {line=1, pos=1}
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-- keep a few blank lines around: https://merveilles.town/@akkartik/110084833821965708
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love.window.setTitle('text.love - '..Editor_state.filename)
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end
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function App.draw()
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if Mode == 'version_check' then
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love.graphics.setColor(1,1,0)
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love.graphics.rectangle('fill', 30,30, 400,400)
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love.graphics.setColor(0,0,0)
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love.graphics.printf(("This app doesn't support version %s; please use version %s. Press any key to try it with this version anyway."):format(Version, Supported_versions[1]), 40,40, 400)
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return
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end
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edit.draw(Editor_state)
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end
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function App.update(dt)
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if Mode == 'version_check' then return end
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Current_time = Current_time + dt
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-- some hysteresis while resizing
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if Current_time < Last_resize_time + 0.1 then
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return
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end
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Cursor_time = Cursor_time + dt
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edit.update(Editor_state, dt)
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end
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function love.quit()
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if Mode == 'version_check' then return end
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edit.quit(Editor_state)
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-- save some important settings
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local x,y,displayindex = App.screen.position()
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local filename = Editor_state.filename
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if is_relative_path(filename) then
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filename = love.filesystem.getWorkingDirectory()..'/'..filename -- '/' should work even on Windows
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end
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local settings = {
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x=x, y=y, displayindex=displayindex,
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width=App.screen.width, height=App.screen.height,
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font_height=Editor_state.font_height,
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filename=filename,
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screen_top=Editor_state.screen_top1, cursor=Editor_state.cursor1}
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love.filesystem.write('config', json.encode(settings))
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end
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function App.mousepressed(x,y, mouse_button)
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if Mode == 'version_check' then return end
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Cursor_time = 0 -- ensure cursor is visible immediately after it moves
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return edit.mouse_press(Editor_state, x,y, mouse_button)
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end
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function App.mousereleased(x,y, mouse_button)
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if Mode == 'version_check' then return end
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Cursor_time = 0 -- ensure cursor is visible immediately after it moves
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return edit.mouse_release(Editor_state, x,y, mouse_button)
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end
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function App.wheelmoved(dx,dy)
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if Mode == 'version_check' then return end
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Cursor_time = 0 -- ensure cursor is visible immediately after it moves
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return edit.mouse_wheel_move(Editor_state, dx,dy)
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end
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function App.focus(in_focus)
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if Mode == 'version_check' then return end
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if in_focus then
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Last_focus_time = Current_time
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end
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end
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function App.keychord_press(chord, key)
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if Mode == 'version_check' then return end
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-- ignore events for some time after window in focus (mostly alt-tab)
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if Current_time < Last_focus_time + 0.01 then
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return
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end
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Cursor_time = 0 -- ensure cursor is visible immediately after it moves
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return edit.keychord_press(Editor_state, chord, key)
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end
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function App.textinput(t)
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if Mode == 'version_check' then return end
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-- ignore events for some time after window in focus (mostly alt-tab)
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if Current_time < Last_focus_time + 0.01 then
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return
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end
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Cursor_time = 0 -- ensure cursor is visible immediately after it moves
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return edit.text_input(Editor_state, t)
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end
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function App.keyreleased(key, scancode)
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if Mode == 'version_check' then
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Mode = 'run'
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return
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end
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-- ignore events for some time after window in focus (mostly alt-tab)
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if Current_time < Last_focus_time + 0.01 then
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return
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end
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Cursor_time = 0 -- ensure cursor is visible immediately after it moves
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return edit.key_release(Editor_state, key, scancode)
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end
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