145 lines
3.6 KiB
Lua
145 lines
3.6 KiB
Lua
-- widgets :: basic widget object
|
|
|
|
--[[
|
|
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 Widget = {}
|
|
|
|
BaseWidget = Object:extend()
|
|
TextWidget = BaseWidget:extend()
|
|
|
|
-- INIT FUNCTIONS
|
|
-- Initialize and configure the widget
|
|
|
|
function BaseWidget:new(menu)
|
|
self.menu = menu
|
|
|
|
self.destroyed = false
|
|
self.selectable = false
|
|
self.selection_margin = 0
|
|
self.margin = 2
|
|
|
|
self.canvas = {}
|
|
self.canvas.texture = nil
|
|
self.canvas.needRedraw = true
|
|
|
|
self.order = 0
|
|
self:register()
|
|
end
|
|
|
|
function BaseWidget:register()
|
|
self.creationID = self.menu:getWidgetNumber()
|
|
self.menu:addWidget(self)
|
|
end
|
|
|
|
function BaseWidget:redrawCanvas()
|
|
self.width, self.height = self.menu:getWidgetSize(self.id)
|
|
|
|
local canvas = love.graphics.newCanvas(self.width, self.height)
|
|
love.graphics.setCanvas( canvas )
|
|
|
|
self:drawCanvas()
|
|
self.canvas.needRedraw = false
|
|
|
|
love.graphics.setCanvas( )
|
|
local imageData = canvas:newImageData( )
|
|
self.canvas.texture = love.graphics.newImage( imageData )
|
|
canvas:release( )
|
|
imageData:release( )
|
|
end
|
|
|
|
function BaseWidget:invalidateCanvas()
|
|
self.canvas.needRedraw = true
|
|
end
|
|
|
|
function BaseWidget:drawCanvas()
|
|
self.r = love.math.random(128)/256
|
|
self.g = love.math.random(128)/256
|
|
self.b = love.math.random(128)/256
|
|
|
|
love.graphics.setColor(self.r, self.g, self.b, 70)
|
|
love.graphics.rectangle("fill", 0, 0, self.width, self.height)
|
|
love.graphics.setColor(self.r, self.g, self.b)
|
|
love.graphics.rectangle("line", 0, 0, self.width, self.height)
|
|
utils.graphics.resetColor()
|
|
end
|
|
|
|
function BaseWidget:selectAction()
|
|
-- Do nothing
|
|
end
|
|
|
|
-- DRAW WIDGETS
|
|
-- Draw the widget
|
|
|
|
function BaseWidget:draw(x, y)
|
|
if self.canvas.texture ~= nil then
|
|
utils.graphics.resetColor()
|
|
love.graphics.draw(self.canvas.texture, x, y)
|
|
end
|
|
end
|
|
|
|
function BaseWidget:drawSelected(x,y,w,h)
|
|
self:draw(x, y, w, h)
|
|
end
|
|
|
|
-- UPDATE FUNCTIONS
|
|
-- Update the widget
|
|
|
|
function BaseWidget:update(dt)
|
|
if (self.canvas.needRedraw) then
|
|
self:redrawCanvas()
|
|
end
|
|
-- N/A
|
|
end
|
|
|
|
-- ACTION FUNCTION
|
|
-- Functions to handle actions and selection.
|
|
|
|
function BaseWidget:action(source)
|
|
--self:destroy()
|
|
end
|
|
|
|
function BaseWidget:destroy()
|
|
self.destroyed = true
|
|
end
|
|
|
|
-- TEXT WIDGET
|
|
-- Simple text widget
|
|
|
|
function TextWidget:new(menu, font, label)
|
|
TextWidget.super.new(self, menu)
|
|
self.font = font
|
|
self.label = label
|
|
end
|
|
|
|
function TextWidget:drawCanvas()
|
|
local w, h
|
|
w = math.floor(self.width / 2)
|
|
h = math.floor(self.height / 2) - (self.font:getHeight() / 2)
|
|
self.font:draw(self.label, w, h, -1, "center")
|
|
end
|
|
|
|
-- Add the widget as subvariable to the returned table
|
|
Widget.Base = BaseWidget
|
|
Widget.Text = TextWidget
|
|
|
|
return Widget
|