Initial commit

.config/lite-xl/libraries/widget/toggle.lua

@@ -0,0 +1,139 @@
+--
+-- Toggle Widget.
+-- @copyright Jefferson Gonzalez
+-- @license MIT
+--
+
+local style = require "core.style"
+local Widget = require "libraries.widget"
+local Label = require "libraries.widget.label"
+
+-- Hold dimensions of rendered toggle
+local BOX = 40
+local TOGGLE = 15
+local BORDER = 3
+
+---@class widget.toggle : widget
+---@field public enabled boolean
+---@field private caption_label widget.textbox
+---@field private padding integer
+---@field private switch_x number
+---@field private toggle_bg renderer.color
+local Toggle = Widget:extend()
+
+---Constructor
+---@param parent widget
+---@param label string
+---@param enable boolean
+function Toggle:new(parent, label, enable)
+  Toggle.super.new(self, parent)
+
+  self.type_name = "widget.toggle"
+
+  self.enabled = enable or false
+  self.label = label or ""
+
+  self.caption_label = Label(self, self.label)
+  self.caption_label:set_position(0, 0)
+
+  self.padding = 2
+  self.border.width = 0
+
+  self:set_size(
+    self.caption_label:get_width() + (style.padding.x / 2) + (BOX * SCALE),
+    self.caption_label:get_height() + ((self.padding * 2) * SCALE)
+  )
+
+  self.animate_switch = false
+  self.toggle_x = 0
+end
+
+---@param enabled boolean
+function Toggle:set_toggle(enabled)
+  self.enabled = enabled
+  self.animate_switch = true
+  self:on_change(self.enabled)
+end
+
+---@return boolean
+function Toggle:is_toggled()
+  return self.enabled
+end
+
+function Toggle:toggle()
+  self.enabled = not self.enabled
+  self.animate_switch = true
+  self:on_change(self.enabled)
+end
+
+---@param text string|widget.styledtext
+function Toggle:set_label(text)
+  Toggle.super.set_label(self, text)
+  self.caption_label:set_label(text)
+end
+
+function Toggle:on_click()
+  self:toggle()
+end
+
+function Toggle:update()
+  if not Toggle.super.update(self) then return false end
+
+  local px = style.padding.x / 2
+
+  self:set_size(
+    self.caption_label:get_width() + px + (BOX * SCALE),
+    self.caption_label:get_height() + ((self.padding * 2) * SCALE)
+  )
+
+  self.toggle_x = self.caption_label:get_right() + px
+
+  local switch_x = self.enabled and
+    self.position.x + self.toggle_x
+      + ((BOX - TOGGLE - BORDER) * SCALE)
+    or
+    self.position.x + self.toggle_x + (BORDER * SCALE)
+
+  if not self.animate_switch then
+    self.switch_x = switch_x
+    self.toggle_bg = {}
+    local color = self.enabled and style.caret or style.line_number
+    for i=1, 4, 1 do self.toggle_bg[i] = color[i] end
+  else
+    local color = self.enabled and style.caret or style.line_number
+    self:move_towards(self, "switch_x", switch_x, 0.2)
+    for i=1, 4, 1 do
+      self:move_towards(self.toggle_bg, i, color[i], 0.2)
+    end
+    if self.switch_x == switch_x then
+      self.animate_switch = false
+    end
+  end
+
+  return true
+end
+
+function Toggle:draw()
+  if not Toggle.super.draw(self) then return false end
+
+  renderer.draw_rect(
+    self.position.x + self.toggle_x,
+    self.position.y,
+    BOX * SCALE,
+    self.size.y,
+    self.toggle_bg
+  )
+
+  renderer.draw_rect(
+    self.switch_x,
+    self.position.y + (BORDER * SCALE),
+    TOGGLE * SCALE,
+    self.size.y - ((BORDER * 2) * SCALE),
+    style.line_highlight
+  )
+
+  return true
+end
+
+
+return Toggle