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Add shift policy to grids

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Insality
2020-11-08 23:20:16 +03:00
parent 560c6cb95f
commit 74efdbfe71
4 changed files with 57 additions and 24 deletions
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28
druid/base/static_grid.lua
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@@ -159,13 +159,21 @@ end
-- @tparam StaticGrid self
-- @tparam node item Gui node
-- @tparam[opt] number index The item position. By default add as last item
function StaticGrid.add(self, item, index)
-- @tparam[opt=SHIFT.RIGHT] number shift_policy How shift nodes, if required. See const.SHIFT
function StaticGrid.add(self, item, index, shift_policy)
shift_policy = shift_policy or const.SHIFT.RIGHT
index = index or ((self.last_index or 0) + 1)
if self.nodes[index] then
-- Move nodes to right
for i = self.last_index, index, -1 do
self.nodes[i + 1] = self.nodes[i]
if shift_policy == const.SHIFT.RIGHT then
for i = self.last_index, index, -1 do
self.nodes[i + 1] = self.nodes[i]
end
end
if shift_policy == const.SHIFT.LEFT then
for i = self.first_index, index do
self.nodes[i - 1] = self.nodes[i]
end
end
end
@@ -189,19 +197,25 @@ end
--- Remove the item from the grid. Note that gui node will be not deleted
-- @tparam StaticGrid self
-- @tparam number index The grid node index to remove
-- @tparam bool is_shift_nodes If true, will shift nodes left after index
-- @tparam[opt=SHIFT.RIGHT] number shift_policy How shift nodes, if required. See const.SHIFT
-- @treturn Node The deleted gui node from grid
function StaticGrid.remove(self, index, is_shift_nodes)
function StaticGrid.remove(self, index, shift_policy)
shift_policy = shift_policy or const.SHIFT.RIGHT
assert(self.nodes[index], "No grid item at given index " .. index)
local remove_node = self.nodes[index]
self.nodes[index] = nil
if is_shift_nodes then
if shift_policy == const.SHIFT.RIGHT then
for i = index, self.last_index do
self.nodes[i] = self.nodes[i + 1]
end
end
if shift_policy == const.SHIFT.LEFT then
for i = index, self.first_index, -1 do
self.nodes[i] = self.nodes[i - 1]
end
end
self:_update()