local gui = require('gui')

------------

-- Widget --

------------

---@class widgets.Widget.frame

---@field l? integer Gap between the left edge of the frame and the parent.

---@field t? integer Gap between the top edge of the frame and the parent.

---@field r? integer Gap between the right edge of the frame and the parent.

---@field b? integer Gap between the bottom edge of the frame and the parent.

---@field w? integer Desired width

---@field h? integer Desired height

---@class widgets.Widget.inset

---@field l? integer Left margin

---@field t? integer Top margin

---@field r? integer Right margin

---@field b? integer Bottom margin

---@field x? integer Left/right margin (if `l` and/or `r` are ommited)

---@field y? integer Top/bottom margin (if `t` and/or `b` are ommited)

---@class widgets.Widget.attrs: gui.View.attrs

---@field frame? widgets.Widget.frame

---@field frame_inset? widgets.Widget.inset|integer

---@field frame_background? dfhack.pen

---@class widgets.Widget.attrs.partial: widgets.Widget.attrs

---@class widgets.Widget: gui.View

---@field super gui.View

---@field ATTRS widgets.Widget.attrs|fun(attributes: widgets.Widget.attrs.partial)

---@overload fun(init_table: widgets.Widget.attrs.partial): self

Widget = defclass(Widget, gui.View)

Widget.ATTRS {

frame = DEFAULT_NIL,

frame_inset = DEFAULT_NIL,

frame_background = DEFAULT_NIL,

}

---@param parent_rect { width: integer, height: integer }

---@return any

function Widget:computeFrame(parent_rect)

local sw, sh = parent_rect.width, parent_rect.height

return gui.compute_frame_body(sw, sh, self.frame, self.frame_inset)

end

---@param dc gui.Painter

---@param rect { x1: integer, y1: integer, x2: integer, y2: integer }

function Widget:onRenderFrame(dc, rect)

if self.frame_background then

dc:fill(rect, self.frame_background)

end

end

return Widget