epervier-old/gamecore/modules/menusystem/listbox.lua

110 lines
3 KiB
Lua

local cwd = (...):gsub('%.listbox$', '') .. "."
local Menu = require(cwd .. "parent")
local menuutils = require(cwd .. "widgets.utils")
local ListBox = Menu:extend()
function ListBox:new(menusystem, name, x, y, w, h, slotNumber)
self.view = {}
self.view.slotNumber = slotNumber
self.view.firstSlot = 1
ListBox.super.new(self, menusystem, name, x, y, w, h)
self.h = slotNumber * self.widget.h -- On fait en sorte que la hauteur
-- soit un multiple du nombre de slot et de leur hauteur
end
function ListBox:updateWidgetSize()
self.widget.h = math.floor( self.h / self.view.slotNumber )
self.widget.w = self.w
end
function ListBox:update(dt)
self:updateView()
end
function ListBox:updateView()
if self.widget.selected < self.view.firstSlot then
self.view.firstSlot = self.widget.selected
end
if self.widget.selected > self.view.firstSlot + self.view.slotNumber - 1 then
self.view.firstSlot = self.widget.selected - self.view.slotNumber + 1
end
if self.view.firstSlot < 1 then
self.view.firstSlot = 1
end
end
function ListBox:keyreleased(key, code)
if key == 'up' then
self:moveCursor(self.widget.selected - 1)
end
if key == 'down' then
self:moveCursor(self.widget.selected + 1)
end
if key == "A" then
if (self.widget.selected >= 1 and self.widget.selected <= #self.widget.list) then
self.widget.list[self.widget.selected]:action("key")
end
end
if key == "B" then
if (self.widget.cancel >= 1 and self.widget.cancel <= #self.widget.list) then
self.widget.list[self.widget.cancel]:action("key")
end
end
end
function ListBox:mousemoved(x, y)
local widget_selected = self.view.firstSlot + math.floor(y / self.widget.h)
if widget_selected >= 1 and widget_selected <= #self.widget.list then
self.widget.selected = widget_selected
self:getFocus()
end
end
function ListBox:mousepressed(x, y, button, isTouch)
local widget_selected = self.view.firstSlot + math.floor(y / self.widget.h)
if widget_selected >= 1 and widget_selected <= #self.widget.list then
self.widget.selected = widget_selected
self:getFocus()
if #self.widget.list > 0 then
self.widget.list[self.widget.selected]:action("pointer")
end
end
end
function ListBox:draw()
self:updateView()
local widgety = self.y
for i,v in ipairs(self.widget.list) do
if (i >= self.view.firstSlot) and (i < self.view.firstSlot + self.view.slotNumber) then
v:draw(self.x, widgety, self.w, self.widget.h)
if self.widget.selected == i and self:haveFocus() == true then
v:drawSelected(self.x, widgety, self.w, self.widget.h)
else
v:draw(self.x, widgety, self.w, self.widget.h)
end
widgety = widgety + self.widget.h
end
end
end
function ListBox:drawCursor()
self:updateView()
if (self.widget.selected >= 1 and self.widget.selected <= #self.widget.list) then
local w, h = self:getWidgetSize()
local y = (self.widget.selected - self.view.firstSlot) * h
menuutils.drawCursor(self.x,self.y + y, w, h)
end
end
return ListBox