-- environment for immutable logs
-- optionally reads extensions for rendering some types from the source codebase that generated them
--
-- We won't care too much about long, wrapped lines. If they lines get too
-- long to manage, you need a better, graphical rendering for them. Load
-- functions to render them into the log_render namespace.
function source.initialize_log_browser_side()
Log_browser_state = edit.initialize_state(Margin_top, Editor_state.right + Margin_right + Margin_left, (Editor_state.right+Margin_right)*2, Editor_state.font_height, Editor_state.line_height)
Log_browser_state.filename = 'log'
load_from_disk(Log_browser_state) -- TODO: pay no attention to Fold
log_browser.parse(Log_browser_state)
Text.redraw_all(Log_browser_state)
Log_browser_state.screen_top1 = {line=1, pos=1}
Log_browser_state.cursor1 = {line=1, pos=nil}
end
Section_stack = {}
Section_border_color = {r=0.7, g=0.7, b=0.7}
Cursor_line_background_color = {r=0.7, g=0.7, b=0, a=0.1}
Section_border_padding_horizontal = 30 -- TODO: adjust this based on font height (because we draw text vertically along the borders
Section_border_padding_vertical = 15 -- TODO: adjust this based on font height
log_browser = {}
function log_browser.parse(State)
for _,line in ipairs(State.lines) do
if line.data ~= '' then
local rest
line.filename, line.line_number, rest = line.data:match('%[string "([^:]*)"%]:([^:]*):%s*(.*)')
if line.filename == nil then
line.filename, line.line_number, rest = line.data:match('([^:]*):([^:]*):%s*(.*)')
end
if rest then
line.data = rest
end
line.filename = guess_source(line.filename)
line.line_number = tonumber(line.line_number)
if line.data:sub(1,1) == '{' then
local data = json.decode(line.data)
if log_render[data.name] then
line.data = data
end
line.section_stack = table.shallowcopy(Section_stack)
elseif line.data:match('\u{250c}') then
line.section_stack = table.shallowcopy(Section_stack) -- as it is at the beginning
local section_name = line.data:match('\u{250c}%s*(.*)')
table.insert(Section_stack, {name=section_name})
line.section_begin = true
line.section_name = section_name
line.data = nil
elseif line.data:match('\u{2518}') then
local section_name = line.data:match('\u{2518}%s*(.*)')
if array.find(Section_stack, function(x) return x.name == section_name end) then
while table.remove(Section_stack).name ~= section_name do
--
end
line.section_end = true
line.section_name = section_name
line.data = nil
end
line.section_stack = table.shallowcopy(Section_stack)
else
-- string
line.section_stack = table.shallowcopy(Section_stack)
end
else
line.section_stack = {}
end
end
end
function table.shallowcopy(x)
return {unpack(x)}
end
function guess_source(filename)
local possible_source = filename:gsub('%.lua$', '%.splua')
if file_exists(possible_source) then
return possible_source
else
return filename
end
end
function log_browser.draw(State)
assert(#State.lines == #State.line_cache)
local mouse_line_index = log_browser.line_index(State, App.mouse_x(), App.mouse_y())
local y = State.top
for line_index = State.screen_top1.line,#State.lines do
App.color(Text_color)
local line = State.lines[line_index]
if y + State.line_height > App.screen.height then break end
local height = State.line_height
if should_show(line) then
local xleft = render_stack_left_margin(State, line_index, line, y)
local xright = render_stack_right_margin(State, line_index, line, y)
if line.section_name then
App.color(Section_border_color)
local section_text = to_text(line.section_name)
if line.section_begin then
local sectiony = y+Section_border_padding_vertical
love.graphics.line(xleft,sectiony, xleft,y+State.line_height)
love.graphics.line(xright,sectiony, xright,y+State.line_height)
love.graphics.line(xleft,sectiony, xleft+50-2,sectiony)
love.graphics.draw(section_text, xleft+50,y)
love.graphics.line(xleft+50+App.width(section_text)+2,sectiony, xright,sectiony)
else assert(line.section_end)
local sectiony = y+State.line_height-Section_border_padding_vertical
love.graphics.line(xleft,y, xleft,sectiony)
love.graphics.line(xright,y, xright,sectiony)
love.graphics.line(xleft,sectiony, xleft+50-2,sectiony)
love.graphics.draw(section_text, xleft+50,y)
love.graphics.line(xleft+50+App.width(section_text)+2,sectiony, xright,sectiony)
end
else
if type(line.data) == 'string' then
local old_left, old_right = State.left,State.right
State.left,State.right = xleft,xright
y = Text.draw(State, line_index, y, --[[startpos]] 1)
State.left,State.right = old_left,old_right
else
height = log_render[line.data.name](line.data, xleft, y, xright-xleft)
end
end
if App.mouse_x() > Log_browser_state.left and line_index == mouse_line_index then
App.color(Cursor_line_background_color)
love.graphics.rectangle('fill', xleft,y, xright-xleft, height)
end
y = y + height
end
end
end
function render_stack_left_margin(State, line_index, line, y)
if line.section_stack == nil then
-- assertion message
for k,v in pairs(line) do
print(k)
end
end
App.color(Section_border_color)
for i=1,#line.section_stack do
local x = State.left + (i-1)*Section_border_padding_horizontal
love.graphics.line(x,y, x,y+log_browser.height(State, line_index))
if y < 30 then
love.graphics.print(line.section_stack[i].name, x+State.font_height+5, y+5, --[[vertically]] math.pi/2)
end
if y > App.screen.height-log_browser.height(State, line_index) then
love.graphics.print(line.section_stack[i].name, x+State.font_height+5, App.screen.height-App.width(to_text(line.section_stack[i].name))-5, --[[vertically]] math.pi/2)
end
end
return log_browser.left_margin(State, line)
end
function render_stack_right_margin(State, line_index, line, y)
App.color(Section_border_color)
for i=1,#line.section_stack do
local x = State.right - (i-1)*Section_border_padding_horizontal
love.graphics.line(x,y, x,y+log_browser.height(State, line_index))
if y < 30 then
love.graphics.print(line.section_stack[i].name, x, y+5, --[[vertically]] math.pi/2)
end
if y > App.screen.height-log_browser.height(State, line_index) then
love.graphics.print(line.section_stack[i].name, x, App.screen.height-App.width(to_text(line.section_stack[i].name))-5, --[[vertically]] math.pi/2)
end
end
return log_browser.right_margin(State, line)
end
function should_show(line)
-- Show a line if every single section it's in is expanded.
for i=1,#line.section_stack do
local section = line.section_stack[i]
if not section.expanded then
return false
end
end
return true
end
function log_browser.left_margin(State, line)
return State.left + #line.section_stack*Section_border_padding_horizontal
end
function log_browser.right_margin(State, line)
return State.right - #line.section_stack*Section_border_padding_horizontal
end
function log_browser.update(State, dt)
end
function log_browser.quit(State)
end
function log_browser.mouse_pressed(State, x,y, mouse_button)
local line_index = log_browser.line_index(State, x,y)
if line_index == nil then
-- below lower margin
return
end
-- leave some space to click without focusing
local line = State.lines[line_index]
local xleft = log_browser.left_margin(State, line)
local xright = log_browser.right_margin(State, line)
if x < xleft or x > xright then
return
end
-- if it's a section begin/end and the section is collapsed, expand it
-- TODO: how to collapse?
if line.section_begin or line.section_end then
-- HACK: get section reference from next/previous line
local new_section
if line.section_begin then
if line_index < #State.lines then
local next_section_stack = State.lines[line_index+1].section_stack
if next_section_stack then
new_section = next_section_stack[#next_section_stack]
end
end
elseif line.section_end then
if line_index > 1 then
local previous_section_stack = State.lines[line_index-1].section_stack
if previous_section_stack then
new_section = previous_section_stack[#previous_section_stack]
end
end
end
if new_section and new_section.expanded == nil then
new_section.expanded = true
return
end
end
-- open appropriate file in source side
if line.filename ~= Editor_state.filename then
source.switch_to_file(line.filename)
end
-- set cursor
Editor_state.cursor1 = {line=line.line_number, pos=1, posB=nil}
-- make sure it's visible
-- TODO: handle extremely long lines
Editor_state.screen_top1.line = math.max(0, Editor_state.cursor1.line-5)
-- show cursor
Focus = 'edit'
-- expand B side
Editor_state.expanded = true
end
function log_browser.line_index(State, mx,my)
-- duplicate some logic from log_browser.draw
local y = State.top
for line_index = State.screen_top1.line,#State.lines do
local line = State.lines[line_index]
if should_show(line) then
y = y + log_browser.height(State, line_index)
if my < y then
return line_index
end
if y > App.screen.height then break end
end
end
end
function log_browser.mouse_released(State, x,y, mouse_button)
end
function log_browser.textinput(State, t)
end
function log_browser.keychord_pressed(State, chord, key)
-- move
if chord == 'up' then
while State.screen_top1.line > 1 do
State.screen_top1.line = State.screen_top1.line-1
if should_show(State.lines[State.screen_top1.line]) then
break
end
end
elseif chord == 'down' then
while State.screen_top1.line < #State.lines do
State.screen_top1.line = State.screen_top1.line+1
if should_show(State.lines[State.screen_top1.line]) then
break
end
end
elseif chord == 'pageup' then
local y = 0
while State.screen_top1.line > 1 and y < App.screen.height - 100 do
State.screen_top1.line = State.screen_top1.line - 1
if should_show(State.lines[State.screen_top1.line]) then
y = y + log_browser.height(State, State.screen_top1.line)
end
end
elseif chord == 'pagedown' then
local y = 0
while State.screen_top1.line < #State.lines and y < App.screen.height - 100 do
if should_show(State.lines[State.screen_top1.line]) then
y = y + log_browser.height(State, State.screen_top1.line)
end
State.screen_top1.line = State.screen_top1.line + 1
end
end
end
function log_browser.height(State, line_index)
local line = State.lines[line_index]
if line.data == nil then
-- section header
return State.line_height
elseif type(line.data) == 'string' then
return State.line_height
else
if line.height == nil then
--? print('nil line height! rendering off screen to calculate')
line.height = log_render[line.data.name](line.data, State.left, App.screen.height, State.right-State.left)
end
return line.height
end
end
function log_browser.keyreleased(State, key, scancode)
end