141 lines
3.6 KiB
Lua
141 lines
3.6 KiB
Lua
local setmetatable = setmetatable
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local math = math
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local base = require( "radical.base" )
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local color = require( "gears.color" )
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local cairo = require( "lgi" ).cairo
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local print = print
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local module = {
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margins = {
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TOP = 4,
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BOTTOM = 4,
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RIGHT = 4,
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LEFT = 4
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}
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}
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local state_cache = {}
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local function rect(cr,width,height,x,y)
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local radius = 3
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cr:move_to(0,radius)
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cr:arc(radius,radius,radius,math.pi,3*(math.pi/2))
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cr:arc(width-radius,radius,radius,3*(math.pi/2),math.pi*2)
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cr:arc(width-radius,height-radius,radius,math.pi*2,math.pi/2)
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cr:arc(radius,height-radius,radius,math.pi/2,math.pi)
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cr:close_path()
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end
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local function gen(width,height,bg_color,border_color,item,shadow)
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local extra = shadow and 5 or 0
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local img = cairo.ImageSurface(cairo.Format.ARGB32, width+extra,height+extra)
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local cr = cairo.Context(img)
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rect(cr,width,height,0,0)
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cr:set_source(color(bg_color))
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if item.item_border_color then
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cr:fill_preserve()
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cr:set_line_width(item.border_width or 1)
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cr:set_source(color(item.item_border_color))
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cr:stroke()
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else
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cr:fill()
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end
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return cairo.Pattern.create_for_surface(img)
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end
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local function widget_draw(self, w, cr, width, height,shadow)
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local item = self._item
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local state = item.state or {}
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local current_state = state._current_key or ""
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if not state_cache[current_state] then
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state_cache[current_state] = {}
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end
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local cache = state_cache[current_state]
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local hash = width+1234*height
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local cached = cache[hash]
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--Generate the pixmap
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if not cached then
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local state_name = current_state == "" and "bg" or "bg_"..(base.colors_by_id[current_state] or "")
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cached = gen(width,height,item[state_name],bc,item,shadow)
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cache[hash] = cached
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end
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if current_state ~= self._last_state then
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self:set_bg(cached)
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self._last_state = current_state
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end
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self:_drawrounded(w, cr, width, height)
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local overlay = item and item.overlay
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if overlay then
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overlay(item._menu,item,cr,width,height)
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end
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end
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local function draw_width_shadow(self, w, cr, width, height)
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cr:save()
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cr:reset_clip()
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cr:set_source_rgba(0,0,0,.1)
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cr:set_line_width(1)
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cr:translate(3,3)
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for i=1,3 do
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cr:translate(-1,-1)
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rect(cr,width,height)
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cr:fill()
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end
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cr:restore()
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widget_draw(self, w, cr, width, height,true)
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end
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local function common(item,args)
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local state = item.state or {}
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local current_state = state._current_key or nil
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local state_name = base.colors_by_id[current_state]
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if current_state == base.item_flags.SELECTED or (item._tmp_menu) then
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item.widget:set_fg(item["fg_focus"])
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elseif state_name then
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item.widget:set_fg( item["fg_"..state_name])
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else
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item.widget:set_fg(item["fg_normal"])
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end
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end
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local function draw(item,args)
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local args = args or {}
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if not item.widget._overlay_init then
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item.widget._drawrounded = item.widget.draw
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item.widget.draw = widget_draw
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item.widget._overlay_init = true
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item.widget._item = item
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end
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common(item,args)
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end
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-- Same as the default, but also draw a shadow
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local function shadow(item,args)
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local args = args or {}
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if not item.widget._overlay_init then
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item.widget._drawrounded = item.widget.draw
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item.widget.draw = draw_width_shadow
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item.widget._overlay_init = true
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item.widget._item = item
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end
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common(item,args)
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end
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module.shadow = {}
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setmetatable(module.shadow, { __call = function(_, ...) return shadow(...) end })
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return setmetatable(module, { __call = function(_, ...) return draw(...) end })
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-- kate: space-indent on; indent-width 2; replace-tabs on;
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