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|
package.cpath = package.cpath .. ";../target/debug/?.so"
package.path = package.path .. ";../lua-bindings/?.lua"
local dia = require("diaphragm")
dia.util.eprint("----------")
local nord_colors = {
base00 = "#2E3440",
base01 = "#3B4252",
base02 = "#434C5E",
base03 = "#4C566A",
base04 = "#D8DEE9",
base05 = "#E5E9F0",
base06 = "#ECEFF4",
base07 = "#8FBCBB",
base08 = "#BF616A",
base09 = "#D08770",
base0A = "#EBCB8B",
base0B = "#A3BE8C",
base0C = "#88C0D0",
base0D = "#81A1C1",
base0E = "#B48EAD",
base0F = "#5E81AC",
}
local function begin(params)
local result = dia.shape(params)
result.icon = dia.rectangle.surrounding(result, {
height = 10,
width = 10,
fill_color = nord_colors.base00,
})
result.beginning = result.middle_left
result.ending = result.middle_right
function result:draw()
self.icon:draw()
end
return result
end
local function stop(params)
return begin(params)
end
function token(params)
local result = dia.shape(params)
result.name = params.name or "token"
result.font = params.font or dia.text.font({ family = "Fira Code", size = 14 })
result.text = params.text or dia.text.new({
content = result.name,
font = result.font,
})
result.fill_color = params.fill_color or nord_colors.base04
result.padding = params.padding or 5
result.box = dia.rectangle.surrounding(result.text, {
fill_color = result.fill_color,
-- TODO: make that a parameter
margin_left = 5,
margin_right = 5,
margin_top = 2,
margin_bottom = 2,
})
dia.constraint.inset(result.box, result)
result.beginning = result.box.middle_left
result.ending = result.box.middle_right
function result:draw()
self.box:draw()
self.text:draw()
end
return result
end
function optional(params)
local result = dia.shape(params)
result.line_spacing = params.line_spacing or 10
result.beginning = result.element.beginning - { x = result.line_spacing }
result.ending = result.element.ending + { x = result.line_spacing }
result.top_left = result.element.top_left - {
x = result.line_spacing,
y = result.line_spacing,
}
result.top_right = result.element.top_right + {
x = result.line_spacing,
y = -result.line_spacing,
}
result.overline = dia.straight_path.new({
points = {
result.beginning,
result.top_left,
result.top_right,
result.ending,
},
})
result.left_line = dia.straight_path.new({
points = { result.beginning, result.element.beginning },
})
result.right_line = dia.straight_path.new({
points = { result.element.ending, result.ending },
})
result.bottom = result.element.bottom
function result:draw()
result.overline:draw()
result.left_line:draw()
result.right_line:draw()
result.element:draw()
end
return result
end
function choice(params)
local result = dia.shape(params)
result.line_spacing = params.line_spacing or 10
result.padding = params.padding or 10
result.stack = dia.layout.vstack({
elements = result.choices,
align = "left",
top = result.top,
bottom = result.bottom,
spacing = result.padding,
})
result.beginning = result.choices[1].beginning - { x = result.line_spacing }
result.ending = {
x = result.stack.right + result.line_spacing,
y = result.choices[1].ending.y,
}
result.left_hook = dia.straight_path.new({
points = {
result.choices[1].beginning,
result.beginning,
result.choices[#result.choices].beginning - { x = result.line_spacing },
result.choices[#result.choices].beginning,
},
})
result.right_hook = dia.straight_path.new({
points = {
result.choices[1].ending,
result.ending,
{
x = result.ending.x,
y = result.choices[#result.choices].ending.y,
},
result.choices[#result.choices].ending,
},
})
result.left_connections = {}
result.right_connections = {}
for i = 2, #result.choices - 1 do
table.insert(
result.left_connections,
dia.straight_path.new({
points = {
result.choices[i].beginning - { x = result.line_spacing },
result.choices[i].beginning,
},
})
)
table.insert(
result.right_connections,
dia.straight_path.new({
points = {
result.choices[i].ending,
{ x = result.ending.x, y = result.choices[i].ending.y },
},
})
)
end
dia.constraint.inset(result.stack, result, {
margin_left = result.line_spacing,
margin_right = result.line_spacing,
})
function result:draw()
result.left_hook:draw()
result.right_hook:draw()
for _, left_conn in ipairs(self.left_connections) do
left_conn:draw()
end
for _, right_conn in ipairs(self.right_connections) do
right_conn:draw()
end
self.stack:draw()
end
return result
end
function ident(params)
return token(dia.util.tbl_extend({
fill_color = nord_colors.base0A,
}, params))
end
function typ(params)
return token(dia.util.tbl_extend({
fill_color = nord_colors.base08,
}, params))
end
function tt(params)
return token(dia.util.tbl_extend({
fill_color = nord_colors.base0C,
}, params))
end
function connect(params)
local result = dia.shape(params)
result.elements = params.elements or {}
result.spacing = params.spacing or 10
result.beginning = result.elements[1].beginning
result.ending = result.elements[#result.elements].ending
result.stack = dia.layout.hstack({
elements = result.elements,
align = "none",
spacing = result.spacing,
})
dia.constraint.inset(result.stack, result)
result.lines = {}
for i = 1, #result.elements - 1 do
local left_el = result.elements[i]
local right_el = result.elements[i + 1]
table.insert(
result.lines,
dia.straight_path.new({
points = { left_el.ending, right_el.beginning },
})
)
dia.constrain(left_el.ending.y:eq(right_el.beginning.y))
end
function result:draw()
self.stack:draw()
for _, line in ipairs(self.lines) do
line:draw()
end
end
return result
end
dia.draw({
draw = function(self)
local figure = connect({
elements = {
begin(),
optional({ element = token({ name = "pub" }) }),
ident({ name = "name" }),
token({ name = "<" }),
typ({ name = "a" }),
choice({
choices = {
connect({
elements = {
token({ name = "," }),
choice({
choices = {
connect({
elements = {
typ({ name = "i" }),
token({ name = "," }),
typ({ name = "o" }),
optional({
element = connect({
elements = {
token({ name = "," }),
typ({ name = "e" }),
},
}),
}),
},
}),
typ({ name = "o" }),
},
}),
token({ name = ">" }),
},
}),
connect({
elements = {
token({ name = ">" }),
optional({
element = connect({
elements = {
token({ name = "(" }),
typ({ name = "i" }),
token({ name = ")" }),
token({ name = "->" }),
typ({ name = "o" }),
},
}),
}),
},
}),
},
}),
token({ name = "," }),
optional({ element = token({ name = "mut" }) }),
ident({ name = "self_" }),
token({ name = "," }),
ident({ name = "submac" }),
token({ name = "!" }),
token({ name = "(" }),
optional({ element = tt({ name = "args" }) }),
token({ name = ")" }),
stop(),
},
center = self.center,
})
dia.rectangle
.surrounding(self, {
fill_color = nord_colors.base06,
stroke_width = 0,
})
:draw()
figure:draw()
dia.constraint.inset(figure, self, { margin = 20 })
end,
output = {},
})
|
