303 lines
9.8 KiB
Lua
303 lines
9.8 KiB
Lua
local setmetatable = setmetatable
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local print,ipairs = print,ipairs
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local scroll = require( "radical.widgets.scroll" )
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local filter = require( "radical.widgets.filter" )
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local wibox = require( "wibox" )
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local cairo = require( "lgi" ).cairo
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local base = nil
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local horizontal_item_layout= require( "radical.item.layout.horizontal" )
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local module = {}
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local function left(data)
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if data._current_item._tmp_menu then
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data = data._current_item._tmp_menu
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data.items[1].selected = true
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return true,data
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end
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end
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local function right(data)
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if data.parent_geometry and data.parent_geometry.is_menu then
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for k,v in ipairs(data.items) do
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if v._tmp_menu == data or v.sub_menu_m == data then
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v.selected = true
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end
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end
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data.visible = false
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data = data.parent_geometry
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return true,data
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else
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return false
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end
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end
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local function up(data)
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data.previous_item.selected = true
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end
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local function down(data)
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data.next_item.selected = true
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end
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function module:setup_key_hooks(data)
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data:add_key_hook({}, "Up" , "press", up )
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data:add_key_hook({}, "&" , "press", up ) -- Xephyr bug
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data:add_key_hook({}, "Down" , "press", down )
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data:add_key_hook({}, "KP_Enter", "press", down ) -- Xephyr bug
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data:add_key_hook({}, "Left" , "press", right )
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data:add_key_hook({}, "\"" , "press", right ) -- Xephyr bug
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data:add_key_hook({}, "Right" , "press", left )
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data:add_key_hook({}, "#" , "press", left ) -- Xephyr bug
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end
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--Get preferred item geometry
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local function item_fit(data,item,...)
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local w, h = item._internal.cache_w or 1,item._internal.cache_h or 1
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if data.visible then
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w, h = item._private_data._fit(...)
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item._internal.pix_cache = {} --Clear the pimap cache
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end
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return w, item._private_data.height or h
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end
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-- As of July 2013, LGI is too slow to redraw big menus at ok speed
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-- This do a pixmap cache to allow pre-rendering
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local function cache_pixmap(item)
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item._internal.pix_cache = {}
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item.widget._draw = item.widget.draw
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item.widget.draw = function(self,w, cr, width, height)
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if not w.visible or item._hidden then return end
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if item._internal.pix_cache[10*width+7*height+(item.selected and 8888 or 999)] then
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cr:set_source_surface(item._internal.pix_cache[10*width+7*height+(item.selected and 8888 or 999)])
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cr:paint()
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else
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local img5 = cairo.ImageSurface.create(cairo.Format.ARGB32, width, height)
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local cr5 = cairo.Context(img5)
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item.widget._draw(self,w, cr5, width, height)
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cr:set_source_surface(img5)
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cr:paint()
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item._internal.pix_cache[10*width+7*height+(item.selected and 8888 or 999)] = img5
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return
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end
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end
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end
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function module:setup_text(item,data,text_w)
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local text_w = item._internal.text_w
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text_w.draw = function(self,w, cr, width, height)
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if item.underlay then
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horizontal_item_layout.paint_underlay(data,item,cr,width,height)
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end
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wibox.widget.textbox.draw(self,w, cr, width, height)
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end
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text_w.fit = function(self,width,height) return width,height end
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item.set_text = function (_,value)
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if data.disable_markup then
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text_w:set_text(value)
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else
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text_w:set_markup(value)
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end
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item._private_data.text = value
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end
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item:set_text(item._private_data.text)
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return text_w
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end
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function module:setup_item(data,item,args)
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if not base then
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base = require( "radical.base" )
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end
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--Create the background
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local item_layout = item.layout or data.item_layout or horizontal_item_layout
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item.widget = item_layout(item,data,args)--wibox.widget.background()
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cache_pixmap(item)
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--Event handling
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if data.select_on == base.event.HOVER then
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item.widget:connect_signal("mouse::enter", function(_,geo)
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item.y = geo.y
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item.selected = true
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end)
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item.widget:connect_signal("mouse::leave", function()
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item.selected = false
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end)
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else
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item.widget:connect_signal("mouse::enter", function(_,geo)
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item.y = geo.y
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item.hover = true
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end)
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item.widget:connect_signal("mouse::leave", function()
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item.hover = false
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end)
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end
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data._internal.layout:add(item)
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--Be sure to always hide sub menus, even when data.visible is set manually
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data:connect_signal("visible::changed",function(_,vis)
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if data._tmp_menu and data.visible == false then
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data._tmp_menu.visible = false
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end
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end)
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data:connect_signal("parent_geometry::changed",function(_,vis)
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local fit_w,fit_h = data._internal.layout:fit()
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data.height = fit_h
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data.style(data)
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end)
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item._private_data._fit = wibox.widget.background.fit
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if item._internal.margin_w then
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item._internal.margin_w.fit = function(...)
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if (item.visible == false or item._filter_out == true or item._hidden == true) then
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return 0,0
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end
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return data._internal.layout.item_fit(data,item,...)
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end
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end
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-- Text need to take as much space as possible, override default
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module:setup_text(item,data)
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-- Necessary for :set_position()
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local fit_w,fit_h = data._internal.layout:fit()
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data.width = fit_w
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data.height = fit_h
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-- Enable scrollbar if necessary
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if data._internal.scroll_w and data.rowcount > data.max_items then
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data._internal.scroll_w.visible = true
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data._internal.scroll_w["up"]:emit_signal("widget::updated")
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data._internal.scroll_w["down"]:emit_signal("widget::updated")
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end
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-- Setup tooltip
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item.widget:set_tooltip(item.tooltip)
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-- Apply item style
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local item_style = item.item_style or data.item_style
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item_style(item,{})
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-- Compute the minimum width
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if data.auto_resize and item._internal.margin_w then
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local fit_w,fit_h = wibox.layout.margin.fit(item._internal.margin_w,9999,9999)
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local is_largest = item == data._internal.largest_item_w
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if fit_w < 1000 and (not data._internal.largest_item_w_v or data._internal.largest_item_w_v < fit_w) then
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data._internal.largest_item_w = item
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data._internal.largest_item_w_v = fit_w
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end
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end
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item.widget:emit_signal("widget::updated")
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end
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local function compute_geo(data)
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local w = data.default_width
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if data.auto_resize and data._internal.largest_item_w then
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w = data._internal.largest_item_w_v > data.default_width and data._internal.largest_item_w_v or data.default_width
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end
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local visblerow = data.filter_string == "" and data.rowcount or data._internal.visible_item_count
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if data.max_items and data.max_items < data.rowcount then
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visblerow = data.max_items
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if data.filter_string ~= "" then
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local cur,vis = (data._start_at or 1),0
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while (data._internal.items[cur] and data._internal.items[cur]) and cur < data.max_items + (data._start_at or 1) do
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vis = vis + (data._internal.items[cur]._filter_out and 0 or 1)
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cur = cur +1
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end
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visblerow = vis
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end
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end
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local sw,sh = data._internal.suf_l:fit(9999,9999)
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local pw,ph = data._internal.pref_l:fit(9999,9999)
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if not data._internal.has_widget then
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return w,(total and total > 0 and total or visblerow*data.item_height) + ph + sh
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else
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local h = (visblerow-#data._internal.widgets)*data.item_height
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for k,v in ipairs(data._internal.widgets) do
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local fw,fh = v.widget:fit(9999,9999)
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h = h + fh
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end
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return w,h
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end
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end
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local function new(data)
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if not base then
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base = require( "radical.base" )
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end
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local l,real_l = wibox.layout.fixed.vertical(),nil
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real_l = wibox.layout.fixed.vertical()
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local pref_l,suf_l = wibox.layout.fixed.vertical(),wibox.layout.fixed.vertical()
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real_l:add(pref_l)
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if data.max_items then
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data._internal.scroll_w = scroll(data)
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pref_l:add(data._internal.scroll_w["up"])
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end
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real_l:add(l)
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real_l:add(suf_l)
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if data.show_filter then
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if data.max_items then
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suf_l:add(data._internal.scroll_w["down"])
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end
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local filter_tb = filter(data)
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suf_l:add(filter_tb)
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data._internal.filter_tb = filter_tb.widget
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else
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if data.max_items then
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suf_l:add(data._internal.scroll_w["down"])
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end
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end
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real_l.fit = function(a1,a2,a3)
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if not data.visible then return 1,1 end
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local result,r2 = wibox.layout.fixed.fit(a1,99999,99999)
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local total = data._total_item_height
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return compute_geo(data)
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end
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real_l.add = function(real_l,item)
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return wibox.layout.fixed.add(l,item.widget)
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end
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real_l.item_fit = item_fit
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real_l.setup_key_hooks = module.setup_key_hooks
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real_l.setup_item = module.setup_item
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data._internal.content_layout = l
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data._internal.suf_l,data._internal.pref_l=suf_l,pref_l
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--SWAP / MOVE / REMOVE
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data:connect_signal("item::swapped",function(_,item1,item2,index1,index2)
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l.widgets[index1],l.widgets[index2] = l.widgets[index2],l.widgets[index1]
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l:emit_signal("widget::updated")
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end)
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data:connect_signal("item::moved",function(_,item,new_idx,old_idx)
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table.insert(l.widgets,new_idx,table.remove(l.widgets,old_idx))
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l:emit_signal("widget::updated")
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end)
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data:connect_signal("item::removed",function(_,item,old_idx)
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table.remove(l.widgets,old_idx)
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l:emit_signal("widget::updated")
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end)
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data:connect_signal("item::appended",function(_,item)
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l.widgets[#l.widgets+1] = item.widget
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l:emit_signal("widget::updated")
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end)
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data:connect_signal("widget::added",function(_,item,widget)
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wibox.layout.fixed.add(l,item.widget)
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l:emit_signal("widget::updated")
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end)
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data:connect_signal("prefix_widget::added",function(_,widget,args)
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table.insert(pref_l.widgets,1,widget)
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pref_l:emit_signal("widget::updated")
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real_l:emit_signal("widget::updated")
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end)
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data:connect_signal("suffix_widget::added",function(_,widget,args)
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suf_l:add(widget)
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end)
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data._internal.text_fit = function(self,width,height) return width,height end
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return real_l
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end
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return setmetatable(module, { __call = function(_, ...) return new(...) end })
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-- kate: space-indent on; indent-width 2; replace-tabs on;
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