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utf8 = require 'utf8'
require 'app'
require 'test'
require 'keychord'
require 'button'
require 'main_tests'
-- delegate most business logic to a layer that can be reused by other projects
require 'edit'
Editor_state = {}
-- called both in tests and real run
function App.initialize_globals()
-- tests currently mostly clear their own state
-- resize
Last_resize_time = nil
-- blinking cursor
Cursor_time = 0
end
-- called only for real run
function App.initialize(arg)
love.keyboard.setTextInput(true) -- bring up keyboard on touch screen
love.keyboard.setKeyRepeat(true)
love.graphics.setBackgroundColor(1,1,1)
if love.filesystem.getInfo('config') then
load_settings()
else
initialize_default_settings()
end
if #arg > 0 then
Editor_state.filename = arg[1]
Editor_state.lines = load_from_disk(Editor_state.filename)
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.cursor1 = {line=1, pos=1}
for i,line in ipairs(Editor_state.lines) do
if line.mode == 'text' then
Editor_state.cursor1.line = i
break
end
end
else
Editor_state.lines = load_from_disk(Editor_state.filename)
if Editor_state.cursor1.line > #Editor_state.lines or Editor_state.lines[Editor_state.cursor1.line].mode ~= 'text' then
for i,line in ipairs(Editor_state.lines) do
if line.mode == 'text' then
Editor_state.cursor1.line = i
break
end
end
end
end
love.window.setTitle('lines.love - '..Editor_state.filename)
if #arg > 1 then
print('ignoring commandline args after '..arg[1])
end
if rawget(_G, 'jit') then
jit.off()
jit.flush()
end
end
function load_settings()
-- maximize window to determine maximum allowable dimensions
love.window.setMode(0, 0) -- maximize
App.screen.width, App.screen.height, App.screen.flags = love.window.getMode()
--
local settings = json.decode(love.filesystem.read('config'))
love.window.setPosition(settings.x, settings.y, settings.displayindex)
App.screen.width, App.screen.height, App.screen.flags = love.window.getMode()
App.screen.flags.resizable = true
App.screen.flags.minwidth = math.min(App.screen.width, 200)
App.screen.flags.minheight = math.min(App.screen.width, 200)
App.screen.width, App.screen.height = settings.width, settings.height
love.window.setMode(App.screen.width, App.screen.height, App.screen.flags)
Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right)
Editor_state.filename = settings.filename
Editor_state.font_height = settings.font_height
love.graphics.setFont(love.graphics.newFont(Editor_state.font_height))
Editor_state.line_height = math.floor(Editor_state.font_height*1.3)
Editor_state.em = App.newText(love.graphics.getFont(), 'm')
Editor_state.screen_top1 = settings.screen_top
Editor_state.cursor1 = settings.cursor
end
function initialize_default_settings()
local font_height = 20
love.graphics.setFont(love.graphics.newFont(font_height))
local em = App.newText(love.graphics.getFont(), 'm')
initialize_window_geometry(App.width(em))
Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right)
Editor_state.font_height = font_height
Editor_state.line_height = math.floor(font_height*1.3)
Editor_state.em = em
end
function initialize_window_geometry(em_width)
-- maximize window
love.window.setMode(0, 0) -- maximize
App.screen.width, App.screen.height, App.screen.flags = love.window.getMode()
-- shrink height slightly to account for window decoration
App.screen.height = App.screen.height-100
App.screen.width = 40*em_width
App.screen.flags.resizable = true
App.screen.flags.minwidth = math.min(App.screen.width, 200)
App.screen.flags.minheight = math.min(App.screen.width, 200)
love.window.setMode(App.screen.width, App.screen.height, App.screen.flags)
end
function App.resize(w, h)
--? print(("Window resized to width: %d and height: %d."):format(w, h))
App.screen.width, App.screen.height = w, h
Text.redraw_all(Editor_state)
Editor_state.selection1 = {} -- no support for shift drag while we're resizing
Text.tweak_screen_top_and_cursor(Editor_state, Editor_state.left, Editor_state.right)
Last_resize_time = App.getTime()
end
function App.filedropped(file)
-- first make sure to save edits on any existing file
if Editor_state.next_save then
save_to_disk(Editor_state.lines, Editor_state.filename)
end
-- clear the slate for the new file
App.initialize_globals() -- in particular, forget all undo history
Editor_state.filename = file:getFilename()
file:open('r')
Editor_state.lines = load_from_file(file)
file:close()
for i,line in ipairs(Editor_state.lines) do
if line.mode == 'text' then
Editor_state.cursor1.line = i
break
end
end
love.window.setTitle('Text with Editor_state.lines - '..Editor_state.filename)
end
function App.draw()
Button_handlers = {}
edit.draw(Editor_state)
end
function App.update(dt)
Cursor_time = Cursor_time + dt
-- some hysteresis while resizing
if Last_resize_time then
if App.getTime() - Last_resize_time < 0.1 then
return
else
Last_resize_time = nil
end
end
edit.update(Editor_state, dt)
end
function love.quit()
edit.quit(Editor_state)
-- save some important settings
local x,y,displayindex = love.window.getPosition()
local filename = Editor_state.filename
if filename:sub(1,1) ~= '/' then
filename = love.filesystem.getWorkingDirectory()..'/'..filename -- '/' should work even on Windows
end
local settings = {
x=x, y=y, displayindex=displayindex,
width=App.screen.width, height=App.screen.height,
font_height=Editor_state.font_height,
filename=filename,
screen_top=Editor_state.screen_top1, cursor=Editor_state.cursor1}
love.filesystem.write('config', json.encode(settings))
end
function App.mousepressed(x,y, mouse_button)
Cursor_time = 0 -- ensure cursor is visible immediately after it moves
return edit.mouse_pressed(Editor_state, x,y, mouse_button)
end
function App.mousereleased(x,y, mouse_button)
Cursor_time = 0 -- ensure cursor is visible immediately after it moves
return edit.mouse_released(Editor_state, x,y, mouse_button)
end
function App.textinput(t)
Cursor_time = 0 -- ensure cursor is visible immediately after it moves
return edit.textinput(Editor_state, t)
end
function App.keychord_pressed(chord, key)
Cursor_time = 0 -- ensure cursor is visible immediately after it moves
return edit.keychord_pressed(Editor_state, chord, key)
end
function App.keyreleased(key, scancode)
Cursor_time = 0 -- ensure cursor is visible immediately after it moves
return edit.key_released(Editor_state, key, scancode)
end
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