diff options
Diffstat (limited to 'lua/widgets.lua')
| -rw-r--r-- | lua/widgets.lua | 217 |
1 files changed, 174 insertions, 43 deletions
diff --git a/lua/widgets.lua b/lua/widgets.lua index be018e19..4d7ff077 100644 --- a/lua/widgets.lua +++ b/lua/widgets.lua @@ -1,4 +1,5 @@ local lvgl = require("lvgl") + local power = require("power") local bluetooth = require("bluetooth") local font = require("font") @@ -9,17 +10,17 @@ local theme = require("theme") local screen = require("screen") local img = { - db = lvgl.ImgData("//lua/img/db.png"), - chg = lvgl.ImgData("//lua/img/bat/chg.png"), - bat_100 = lvgl.ImgData("//lua/img/bat/100.png"), - bat_80 = lvgl.ImgData("//lua/img/bat/80.png"), - bat_60 = lvgl.ImgData("//lua/img/bat/60.png"), - bat_40 = lvgl.ImgData("//lua/img/bat/40.png"), - bat_20 = lvgl.ImgData("//lua/img/bat/20.png"), - bat_0 = lvgl.ImgData("//lua/img/bat/0.png"), - bat_0chg = lvgl.ImgData("//lua/img/bat/0chg.png"), - bt_conn = lvgl.ImgData("//lua/assets/bt_conn.png"), - bt = lvgl.ImgData("//lua/assets/bt.png") + db = lvgl.ImgData("//lua/img/db.png"), + chg = lvgl.ImgData("//lua/img/bat/chg.png"), + bat_100 = lvgl.ImgData("//lua/img/bat/100.png"), + bat_80 = lvgl.ImgData("//lua/img/bat/80.png"), + bat_60 = lvgl.ImgData("//lua/img/bat/60.png"), + bat_40 = lvgl.ImgData("//lua/img/bat/40.png"), + bat_20 = lvgl.ImgData("//lua/img/bat/20.png"), + bat_0 = lvgl.ImgData("//lua/img/bat/0.png"), + bat_0chg = lvgl.ImgData("//lua/img/bat/0chg.png"), + bt_conn = lvgl.ImgData("//lua/assets/bt_conn.png"), + bt = lvgl.ImgData("//lua/assets/bt.png") } local widgets = {} @@ -49,19 +50,24 @@ widgets.MenuScreen = screen:new { } function widgets.Row(parent, left, right) - local container = parent:Object { - flex = { - flex_direction = "row", - justify_content = "flex-start", - align_items = "flex-start", - align_content = "flex-start", - }, - w = lvgl.PCT(100), - h = lvgl.SIZE_CONTENT, - } - container:add_style(styles.list_item) - container:Label { text = left, flex_grow = 1 } - container:Label { text = right } + local container = parent:Object{ + flex = { + flex_direction = "row", + justify_content = "flex-start", + align_items = "flex-start", + align_content = "flex-start" + }, + w = lvgl.PCT(100), + h = lvgl.SIZE_CONTENT + } + container:add_style(styles.list_item) + container:Label{ + text = left, + flex_grow = 1 + } + container:Label{ + text = right + } end local bindings_meta = { @@ -119,8 +125,8 @@ function widgets.StatusBar(parent, opts) local charge_icon = battery_icon:Image { src = img.chg } charge_icon:center() - local is_charging = nil - local percent = nil + local is_charging = nil + local percent = nil local function update_battery_icon() if is_charging == nil or percent == nil then return end @@ -185,23 +191,148 @@ function widgets.StatusBar(parent, opts) end function widgets.IconBtn(parent, icon, text) - local btn = parent:Button { - flex = { - flex_direction = "row", - justify_content = "flex-start", - align_items = "center", - align_content = "center", - }, - w = lvgl.SIZE_CONTENT, - h = lvgl.SIZE_CONTENT, - pad_top = 1, - pad_bottom = 1, - pad_left = 1, - pad_column = 1, - } - btn:Image { src = icon } - btn:Label { text = text, text_font = font.fusion_10 } - return btn + local btn = parent:Button{ + flex = { + flex_direction = "row", + justify_content = "flex-start", + align_items = "center", + align_content = "center" + }, + w = lvgl.SIZE_CONTENT, + h = lvgl.SIZE_CONTENT, + pad_top = 1, + pad_bottom = 1, + pad_left = 1, + pad_column = 1 + } + btn:Image{ + src = icon + } + btn:Label{ + text = text, + text_font = font.fusion_10 + } + return btn +end + +function widgets.RecyclerList(parent, iterator, opts) + local recycler_list = {} + + recycler_list.root = lvgl.List(parent, { + w = lvgl.PCT(100), + h = lvgl.PCT(100), + flex_grow = 1, + scrollbar_mode = lvgl.SCROLLBAR_MODE.OFF + }) + + local refreshing = false -- Used so that we can ignore focus events during this phase + local function refresh_group() + refreshing = true + local group = lvgl.group.get_default() + local focused_obj = group:get_focused() + local num_children = recycler_list.root:get_child_cnt() + -- remove all children from the group and re-add them + for i = 0, num_children-1 do + lvgl.group.remove_obj(recycler_list.root:get_child(i)) + end + for i = 0, num_children-1 do + group:add_obj(recycler_list.root:get_child(i)) + end + if (focused_obj) then + lvgl.group.focus_obj(focused_obj) + end + refreshing = false + end + + local fwd_iterator = iterator:clone() + local bck_iterator = iterator:clone() + + local last_selected = 0 + local last_index = 0 + local first_index = 0 + + local function remove_top() + local obj = recycler_list.root:get_child(0) + obj:delete() + first_index = first_index + 1 + bck_iterator:next() + end + + local function remove_last() + local obj = recycler_list.root:get_child(-1) + obj:delete() + last_index = last_index - 1 + fwd_iterator:prev() + end + + local moving_back = false + + local function add_item(item, index) + if not item then + return + end + local this_item = index + local add_to_top = false + if this_item < first_index then + first_index = this_item + add_to_top = true + end + if this_item > last_index then last_index = index end + local btn = recycler_list.root:add_btn(nil, tostring(item)) + if add_to_top then + btn:move_to_index(0) + end + -- opts.callback should take an item and return a function matching the arg of onClicked + if opts.callback then + btn:onClicked(opts.callback(item)) + end + btn:onevent(lvgl.EVENT.FOCUSED, function() + if refreshing then return end + selected = this_item + if this_item > last_selected and this_item > 3 then + -- moving forward + if moving_back == true then + fwd_iterator:next() + moving_back = false + end + local to_add = fwd_iterator:next() + if to_add then + remove_top() + add_item(to_add, last_index+1) + end + end + if this_item < last_selected then + -- moving backward + if last_index - this_item > 3 then + if moving_back == false then + -- Special case for the element we switch on + bck_iterator:prev() + moving_back = true + end + if (last_index > 10) then + remove_last() + end + if (first_index > 0) then + add_item(bck_iterator:prev(), first_index-1) + end + end + end + last_selected = this_item + refresh_group() + end) + btn:add_style(styles.list_item) + return btn + end + + for idx = 0, 8 do + local val = fwd_iterator() + if not val then + break + end + add_item(val, idx) + end + + return recycler_list end return widgets |