120 lines
3.6 KiB
Lua
120 lines
3.6 KiB
Lua
local common = require 'common'
|
|
local pure = require 'pure'
|
|
local geometry = require 'geometry'
|
|
local geom = require 'geom'
|
|
local fill_rect = require 'fill_rect'
|
|
|
|
local reduce_modules_y = function(init_x, acc, new)
|
|
if type(new) == "number" then
|
|
acc.next_y = acc.next_y + new
|
|
else
|
|
local r = new(geom.make_point(init_x, acc.next_y))
|
|
table.insert(acc.fgroups, {update = r.update, static = r.static, dynamic = r.dynamic})
|
|
acc.next_x = math.max(acc.next_x, r.next_x)
|
|
acc.next_y = r.next_y
|
|
end
|
|
return acc
|
|
end
|
|
|
|
local reduce_modules_x = function(init_y, acc, x_mods)
|
|
if type(x_mods) == "number" then
|
|
acc.next_x = acc.next_x + x_mods
|
|
else
|
|
local r = pure.reduce(
|
|
pure.partial(reduce_modules_y, acc.next_x),
|
|
{next_x = acc.next_x, next_y = init_y, fgroups = acc.fgroups},
|
|
x_mods
|
|
)
|
|
acc.fgroups = r.fgroups
|
|
acc.next_x = r.next_x
|
|
acc.next_y = math.max(acc.next_y, r.next_y)
|
|
end
|
|
return acc
|
|
end
|
|
|
|
local arrange_panel_modules = function(point, mods)
|
|
local r = pure.reduce(
|
|
pure.partial(reduce_modules_x, point.y),
|
|
{next_x = point.x, next_y = point.y, fgroups = {}},
|
|
mods
|
|
)
|
|
return {
|
|
point_ul = point,
|
|
width = r.next_x - point.x,
|
|
height = r.next_y - point.y,
|
|
update = pure.map_keys('update', r.fgroups),
|
|
static = pure.map_keys('static', r.fgroups),
|
|
dynamic = pure.map_keys('dynamic', r.fgroups),
|
|
}
|
|
end
|
|
|
|
local build_surface = function(box, fs)
|
|
local panel_line_thickness = 1
|
|
-- move over by half a pixel so the lines don't need to be antialiased
|
|
local _x = box.corner.x + 0.5
|
|
local _y = box.corner.y + 0.5
|
|
local panel = common.make_panel(_x, _y, box.width, box.height, panel_line_thickness)
|
|
local cs_x = _x - panel_line_thickness * 0.5
|
|
local cs_y = _y - panel_line_thickness * 0.5
|
|
local cs_w = box.width + panel_line_thickness
|
|
local cs_h = box.height + panel_line_thickness
|
|
|
|
local cs = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, cs_w, cs_h)
|
|
local cr = cairo_create(cs)
|
|
|
|
cairo_translate(cr, -cs_x, -cs_y)
|
|
|
|
fill_rect.draw(panel, cr)
|
|
for i = 1, #fs do
|
|
fs[i](cr)
|
|
end
|
|
cairo_destroy(cr)
|
|
return {x = cs_x, y = cs_y, s = cs}
|
|
end
|
|
|
|
local reduce_static = function(y, margins, acc, panel_mods)
|
|
if type(panel_mods) == "number" then
|
|
acc.next_x = acc.next_x + panel_mods
|
|
else
|
|
local mpoint = geom.make_point(acc.next_x + margins.x, y + margins.y)
|
|
local r = arrange_panel_modules(mpoint, panel_mods)
|
|
local w = r.width + margins.x * 2
|
|
local h = r.height + margins.y * 2
|
|
local pbox = geom.make_box(acc.next_x, y, w, h)
|
|
acc.next_x = acc.next_x + w
|
|
acc.static = pure.flatten({acc.static, {build_surface(pbox, r.static)}})
|
|
acc.update = pure.flatten({acc.update, r.update})
|
|
acc.dynamic = pure.flatten({acc.dynamic, r.dynamic})
|
|
end
|
|
return acc
|
|
end
|
|
|
|
return function(point, module_sets)
|
|
local __cairo_set_source_surface = cairo_set_source_surface
|
|
local __cairo_paint = cairo_paint
|
|
|
|
local r = pure.reduce(
|
|
pure.partial(
|
|
reduce_static,
|
|
point.y,
|
|
{x = geometry.PANEL_MARGIN_X, y = geometry.PANEL_MARGIN_Y}
|
|
),
|
|
{next_x = point.x, static = {}, update = {}, dynamic = {}},
|
|
module_sets
|
|
)
|
|
|
|
local cs = r.static
|
|
|
|
return {
|
|
static = function(cr)
|
|
for i = 1, #cs do
|
|
local c = cs[i]
|
|
__cairo_set_source_surface(cr, c.s, c.x, c.y)
|
|
__cairo_paint(cr)
|
|
end
|
|
end,
|
|
update = pure.sequence(table.unpack(r.update)),
|
|
dynamic = pure.sequence(table.unpack(r.dynamic)),
|
|
}
|
|
end
|