sonic-radiance/sonic-radiance.love/birb/modules/gui/menus/model/page.lua

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local Page = Object:extend()
local function updateWidgetByOrder(a, b)
if a.order ~= b.order then
return a.order < b.order
else
return a.creationID < b.creationID
end
end
-- INIT FUNCTIONS
-- Initialize and basic functions.
function Page:new()
self.widgets = {}
self.selected = 0
self.selectedPrevious = 0
self.cancel = 0
self.limit = -1
self.parent = nil
-- self:updateWidgetSize()
end
function Page:clear()
self.widgets = {}
self.cancel = 0
end
function Page:setLimit(limit)
self.limit = limit
end
-- PAGE FUNCTIONS
-- functions to handle other pages
function Page:setParent(parent)
self.parent = parent
end
function Page:getParent()
return self.parent
end
-- UPDATE/DRAW FUNCTIONS
-- All the update functions
function Page:update(dt)
self:removeDestroyedWidgets()
for id, widget in ipairs(self.widgets) do
widget.id = id
widget:update(dt)
end
end
function Page:updateWidgetsOrder()
table.sort(self.widgets, updateWidgetByOrder)
end
function Page:updateWidgetsID()
for id, widget in ipairs(self.widgets) do
widget.id = id
end
end
-- ACTION FUNCTIONS
-- All the actions callback used by the widgets
function Page:cancelAction()
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if (self:getCancelWidget() ~= 0) then
self:action(self:getCancelWidget(), "key")
end
end
function Page:action(id, type)
if (self:widgetExist(id)) then
self.widgets[id]:action(type)
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self.widgets[id]:playSFX()
end
end
function Page:selectedAction()
if (self.selected ~= 0) then
self:action(self.selected, "key")
end
end
-- WIDGET FUNCTIONS
-- All the functions to handle widgets
function Page:addWidget(newWidget)
if (self.limit ~= -1 and #self.widgets >= self.limit) then
return
end
if #self.widgets == 0 then
self.selected = 1
end
table.insert(self.widgets, newWidget)
self:updateWidgetsID()
self:updateWidgetsOrder()
end
function Page:getList(first, lenght)
local listWidget = {}
local first = first or 1
local lenght = lenght or #self.widgets
lenght = math.min(lenght, (#self.widgets + 1 - first))
local last = (first + lenght - 1)
for i = first, (last) do
table.insert(listWidget, self.widgets[i])
end
return listWidget
end
function Page:removeDestroyedWidgets() -- On retire les widgets marquées comme supprimées
for i, v in ipairs(self.widgets) do
if (v.destroyed == true) then
table.remove(self.widgets, i)
end
end
end
function Page:lenght()
return #self.widgets
end
function Page:widgetExist(id)
local id = id or 0
return (id >= 1 and id <= #self.widgets)
end
-- CANCEL FUNCTIONS
-- Add a widget as a "cancel" function
function Page:setCancelWidget(id)
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if (id == nil) then
id = #self.widgets
end
self.cancel = id
end
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function Page:getCancelWidget()
if (self.cancel == "last") then
return #self.widgets
else
return self.cancel
end
end
-- CURSOR FUNCTIONS
-- Set or move the cursor of the menu
function Page:getSelected()
return self.selected
end
function Page:haveCursor()
return self:widgetExist(self.selected)
end
function Page:trySelectWidget(cursorid)
if (self:widgetExist(cursorid)) then
self:setCursor(cursorid)
return true
else
return false
end
end
function Page:setCursor(cursorid)
self.selected = cursorid --math.max(1, math.min(cursorid, #self.widgets))
end
function Page:moveCursorAbsolute(newSelected)
-- self:playNavigationSound()
if newSelected < 1 then
self.selected = #self.widgets + newSelected
else
if newSelected > #self.widgets then
self.selected = newSelected - #self.widgets
else
self.selected = newSelected
end
end
end
function Page:moveCursor(relative)
self:moveCursorAbsolute(self.selected + relative)
end
-- DRAW
function Page:redraw()
for _, widget in ipairs(self.widgets) do
widget:redraw()
end
end
return Page