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86 lines
2.7 KiB
Lua
86 lines
2.7 KiB
Lua
--- Implements a checkbox widget with a binary tick selection
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--
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-- @classmod yui.Checkbox
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-- @copyright 2022, The DoubleFourteen Code Forge
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-- @author Lorenzo Cogotti, Andrea Pasquini
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--
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-- Checkbox widget receives the following callbacks: @{yui.Widget.WidgetCallbacks|onEnter}(), @{yui.Widget.WidgetCallbacks|onChange}(), @{yui.Widget.WidgetCallbacks|onLeave}().
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local BASE = (...):gsub('checkbox$', '')
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local Widget = require(BASE..'widget')
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local core = require(BASE..'core')
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local shadowtext = require 'lib.gear.shadowtext'
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local T = require('lib.moonspeak').translate
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local Checkbox = setmetatable({
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__call = function(cls, args) return cls:new(args) end
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}, Widget)
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Checkbox.__index = Checkbox
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--- Attributes accepted by the @{Checkbox} widget beyond the standard @{yui.Widget.WidgetAttributes|attributes}
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-- and @{yui.Widget.WidgetCallbacks|callbacks}.
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--
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-- @field checked (boolean) to set it checked by default
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-- @field text (string) text displayed inside the Checkbox
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-- @field[opt='center'] valign (string) vertical alignment 'top', 'bottom', 'center'
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-- @field[opt='center'] align (string) horizontal alignment, 'left', 'center', 'right'
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-- @field notranslate (boolean) don't translate text
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-- @table CheckboxAttributes
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--- Checkbox constructor
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-- @param args (@{CheckboxAttributes}) widget attributes
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function Checkbox:new(args)
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self = setmetatable(args, self)
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self.text = self.text or ""
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self.text = self.notranslate and self.text or T(self.text)
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self.align = self.align or 'left'
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self.valign = self.valign or 'center'
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self.checked = self.checked or false
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return self
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end
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function Checkbox:onPointerInput(_,_, clicked)
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self:grabFocus()
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if clicked then
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self.checked = not self.checked
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self:onChange(self.checked)
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end
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end
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function Checkbox:onActionInput(action)
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if action.confirm then
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self.checked = not self.checked
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self:onChange(self.checked)
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end
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end
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function Checkbox:draw()
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local x,y,w,h = self.x,self.y,self.w,self.h
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local color, font, cornerRadius = core.themeForWidget(self)
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local c = core.colorForWidgetState(self, color)
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-- Draw checkbox
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core.drawBox(x+h/10,y+h/10,h*.8,h*.8, c, cornerRadius)
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love.graphics.setColor(c.fg)
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if self.checked then
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love.graphics.setLineStyle('smooth')
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love.graphics.setLineWidth(5)
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love.graphics.setLineJoin('bevel')
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love.graphics.line(x+h*.2,y+h*.55, x+h*.45,y+h*.75, x+h*.8,y+h*.2)
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end
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-- Most checkboxes have no text, so test for performance
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if self.text ~= "" then
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love.graphics.setFont(font)
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y = y + core.verticalOffsetForAlign(self.valign, font, self.h)
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shadowtext.printf(self.text, x + h, y, w - h, self.align)
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end
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end
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return Checkbox
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