mirror of https://github.com/koreader/koreader
Huang Xin
11 years ago
commit
f542ffbf57
@ -0,0 +1,25 @@
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--[[
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Simple math helper function
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]]--
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function math.roundAwayFromZero(num)
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if num > 0 then
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return math.ceil(num)
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else
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return math.floor(num)
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end
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end
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function math.round(num)
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return math.floor(num + 0.5)
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end
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function math.oddEven(number)
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if number % 2 == 1 then
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return "odd"
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else
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return "even"
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end
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end
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@ -0,0 +1,140 @@
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ToggleSwitch = InputContainer:new{}
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function ToggleSwitch:init()
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self.n_pos = #self.toggle
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if self.n_pos ~= 2 and self.n_pos ~= 3 then
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-- currently only support options with two or three items.
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error("items number not supported")
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end
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self.position = nil
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local label_font_face = "cfont"
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local label_font_size = 16
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self.toggle_frame = FrameContainer:new{background = 0, color = 7, radius = 7, bordersize = 1, padding = 2,}
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self.toggle_content = HorizontalGroup:new{}
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self.left_label = ToggleLabel:new{
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align = "center",
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color = 0,
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text = self.toggle[self.n_pos],
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face = Font:getFace(label_font_face, label_font_size),
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}
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self.left_button = FrameContainer:new{
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background = 0,
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color = 7,
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margin = 0,
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radius = 5,
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bordersize = 1,
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padding = 2,
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self.left_label,
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}
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self.middle_label = ToggleLabel:new{
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align = "center",
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color = 0,
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text = self.n_pos > 2 and self.toggle[2] or "",
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face = Font:getFace(label_font_face, label_font_size),
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}
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self.middle_button = FrameContainer:new{
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background = 0,
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color = 7,
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margin = 0,
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radius = 5,
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bordersize = 1,
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padding = 2,
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self.middle_label,
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}
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self.right_label = ToggleLabel:new{
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align = "center",
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color = 0,
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text = self.toggle[1],
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face = Font:getFace(label_font_face, label_font_size),
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}
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self.right_button = FrameContainer:new{
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background = 0,
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color = 7,
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margin = 0,
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radius = 5,
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bordersize = 1,
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padding = 2,
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self.right_label,
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}
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table.insert(self.toggle_content, self.left_button)
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table.insert(self.toggle_content, self.middle_button)
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table.insert(self.toggle_content, self.right_button)
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self.toggle_frame[1] = self.toggle_content
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self[1] = self.toggle_frame
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self.dimen = Geom:new(self.toggle_frame:getSize())
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if Device:isTouchDevice() then
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self.ges_events = {
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TapSelect = {
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GestureRange:new{
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ges = "tap",
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range = self.dimen,
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},
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doc = "Toggle switch",
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},
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}
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end
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end
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function ToggleSwitch:update()
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local left_pos = self.position == 1
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local right_pos = self.position == self.n_pos
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local middle_pos = not left_pos and not right_pos
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self.left_label.color = right_pos and 15 or 0
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self.left_button.color = left_pos and 7 or 0
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self.left_button.background = left_pos and 7 or 0
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self.middle_label.color = middle_pos and 15 or 0
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self.middle_button.color = middle_pos and 0 or 0
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self.middle_button.background = middle_pos and 0 or 0
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self.right_label.color = left_pos and 15 or 0
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self.right_button.color = right_pos and 7 or 0
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self.right_button.background = right_pos and 7 or 0
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end
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function ToggleSwitch:setPosition(position)
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self.position = position
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self:update()
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end
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function ToggleSwitch:togglePosition(position)
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if self.n_pos == 2 and self.alternate ~= false then
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self.position = (self.position+1)%self.n_pos
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self.position = self.position == 0 and self.n_pos or self.position
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else
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self.position = position
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end
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self:update()
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end
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function ToggleSwitch:onTapSelect(arg, gev)
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DEBUG("toggle position:", position)
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local position = math.ceil(
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(gev.pos.x - self.dimen.x) / self.dimen.w * self.n_pos
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)
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self:togglePosition(position)
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local option_value = nil
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local option_arg = nil
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if self.values then
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self.values = self.values or {}
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option_value = self.values[self.position]
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self.config:onConfigChoice(self.name, option_value)
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end
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if self.event then
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self.args = self.args or {}
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option_arg = self.args[self.position]
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self.config:onConfigEvent(self.event, option_arg)
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end
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if self.events then
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for i=1,#self.events do
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self.events[i].args = self.events[i].args or {}
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option_arg = self.events[i].args[self.position]
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self.config:onConfigEvent(self.events[i].event, option_arg)
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end
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end
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UIManager.repaint_all = true
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end
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