sonic-bluestreak/sonic-bluestreak.love/birb/modules/gui/menus/flowbox.lua

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2021-11-25 10:46:15 +01:00
-- flowbox :: flexible box menu, that handle in grid the widgets
--[[
Copyright © 2019 Kazhnuz
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
]]
local cwd = (...):gsub('%.flowbox$', '') .. "."
local Menu = require(cwd .. "parent")
local FlowBox = Menu:extend()
local View2D = require(cwd .. "views.view2D")
-- INIT FUNCTIONS
-- Initialize and configure the flowbox
function FlowBox:new(name, x, y, w, h, slots_hor, slots_vert)
self.view = View2D(slots_hor, slots_vert)
FlowBox.super.new(self, name, x, y, w, h)
self:setRealSize()
end
function FlowBox:setRealSize()
-- On fait en sorte que la hauteur et la largeur
-- soit un multiple du nombre de slot et de leur dimensions
self:updateWidgetSize()
self.w = self.view.colNumber * self.widgetSize.w
self.h = self.view.lineNumber * self.widgetSize.h
end
function FlowBox:resetView()
self.view:reset()
end
-- UPDATE FUNCTIONS
-- Update the menu and its view
function FlowBox:updateWidgetSize()
self.widgetSize.h = math.floor( self.h / self.view.lineNumber )
self.widgetSize.w = math.floor( self.w / self.view.colNumber )
end
function FlowBox:update(dt)
self.view:updateFirstSlot(self.widget:getSelected())
end
-- CURSOR FUNCTIONS
-- Handle the cursor in a 2D menu
function FlowBox:moveCursor2D(new_col, new_line)
local lastcol, lastline = self.view:getCoord(self.widget:lenght())
new_line = utils.math.wrapAndLimit(new_line, 0, lastline)
if (new_line == lastline) then
new_col = utils.math.wrapAndLimit(new_col, 0, lastcol)
else
new_col = utils.math.wrapAndLimit(new_col, 0, (self.view.colNumber - 1))
end
self.widget:moveCursor((new_line * self.view.colNumber) + new_col + 1)
end
-- KEYS FUNCTIONS
-- Handle the keyboard/controller inputs
function FlowBox:moveByKeys(key)
local col, line = self.view:getCoord(self.widget:getSelected())
if key == 'left' then
self:moveCursor2D(col - 1, line)
self:playNavigationSound()
end
if key == 'right' then
self:moveCursor2D(col + 1, line)
self:playNavigationSound()
end
if key == 'up' then
self:moveCursor2D(col, line - 1)
self:playNavigationSound()
end
if key == 'down' then
self:moveCursor2D(col, line + 1)
self:playNavigationSound()
end
end
-- POSITION FUNCTIONS
-- Get a widget by a position.
function FlowBox:getWidgetAtPoint(x, y)
local col = math.floor(x / self.widgetSize.w)
local line = math.floor(y / self.widgetSize.h)
return self.view:getFromCoord(col, line)
end
-- DRAW FUNCTIONS
-- Draw the menu and its content
function FlowBox:drawTexture()
self.view:updateFirstSlot(self.widget:getSelected())
local widgety = self.canvas.padding
local widgetx = self.canvas.padding
local listWidget = self.widget:getList(self.view.firstSlot, self.view.slotNumber)
for _, widget in ipairs(listWidget) do
widget:drawWidget(widgetx, widgety, self.w, self.widgetSize.h)
-- On calcule la position du prochain widget
widgetx = widgetx + self.widgetSize.w
if widgetx >= (self.x + self.w) then
widgetx = self.x
widgety = widgety + self.widgetSize.h
end
end
end
function FlowBox:getGraphicalCursorPosition()
self.view:updateFirstSlot(self.widget:getSelected())
local _, beginline = self.view:getCoord(self.view.firstSlot)
local w, h = self:getWidgetSize()
local col, line = self.view:getCoord(self.widget:getSelected())
local x = (col) * h
local y = (line - beginline) * h
return self.x + x, self.y + y, w, h
end
return FlowBox