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koreader/frontend/ui/widget/naturallightwidget.lua
2020-06-13 01:56:36 +02:00

434 lines
14 KiB
Lua
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local Blitbuffer = require("ffi/blitbuffer")
local Button = require("ui/widget/button")
local CenterContainer = require("ui/widget/container/centercontainer")
local Device = require("device")
local Font = require("ui/font")
local FrameContainer = require("ui/widget/container/framecontainer")
local Geom = require("ui/geometry")
local HorizontalGroup = require("ui/widget/horizontalgroup")
local HorizontalSpan = require("ui/widget/horizontalspan")
local InputContainer = require("ui/widget/container/inputcontainer")
local InputText = require("ui/widget/inputtext")
local LineWidget = require("ui/widget/linewidget")
local OverlapGroup = require("ui/widget/overlapgroup")
local Size = require("ui/size")
local TextBoxWidget = require("ui/widget/textboxwidget")
local TextWidget = require("ui/widget/textwidget")
local UIManager = require("ui/uimanager")
local VerticalGroup = require("ui/widget/verticalgroup")
local VerticalSpan = require("ui/widget/verticalspan")
local WidgetContainer = require("ui/widget/container/widgetcontainer")
local _ = require("gettext")
local Screen = Device.screen
local NaturalLightWidget = InputContainer:new{
is_always_active = true,
title_face = Font:getFace("x_smalltfont"),
width = nil,
height = nil,
textbox_width = 0.1,
button_width = 0.07,
text_width = 0.3,
white_gain = nil,
white_offset = nil,
red_gain = nil,
red_offset = nil,
green_gain = nil,
green_offset = nil,
exponent = nil,
fl_widget = nil,
old_values = nil
}
function NaturalLightWidget:init()
self.medium_font_face = Font:getFace("ffont")
self.nl_bar = {}
self.screen_width = Screen:getWidth()
self.screen_height = Screen:getHeight()
self.span = math.ceil(self.screen_height * 0.01)
self.width = math.floor(self.screen_width * 0.95)
self.button_width = 0.08 * self.width
self.textbox_width = 0.1 * self.width
self.text_width = 0.2 * self.width
self.powerd = Device:getPowerDevice()
self:createFrame()
end
function NaturalLightWidget:applyValues()
self.powerd.fl.white_gain = self.white_gain[2]:getText()
self.powerd.fl.white_offset = self.white_offset[2]:getText()
self.powerd.fl.red_gain = self.red_gain[2]:getText()
self.powerd.fl.red_offset = self.red_offset[2]:getText()
self.powerd.fl.green_gain = self.green_gain[2]:getText()
self.powerd.fl.green_offset = self.green_offset[2]:getText()
self.powerd.fl.exponent = self.exponent[2]:getText()
self.powerd.fl:setNaturalBrightness()
end
-- Create an InputText with '-' and '+' button next to it. Tapping
-- those buttons will de/increase by 'step', and 'step/10' on hold.
function NaturalLightWidget:adaptableNumber(initial, step)
local minus_number_plus = HorizontalGroup:new{ align = "center" }
local input_text = InputText:new{
parent = self,
text = initial,
input_type = "number",
hint = "",
width = self.textbox_width,
enter_callback = function()
self:closeKeyboard()
self:applyValues()
UIManager:setDirty(self._current_input, "fast")
end
}
input_text:unfocus()
local button_minus = Button:new{
text = "",
margin = Size.margin.small,
radius = 0,
width = self.button_width,
show_parent = self,
callback = function()
self:closeKeyboard()
self:setValueTextBox(input_text, input_text:getText() - step)
self:applyValues()
end,
hold_callback = function()
self:closeKeyboard()
self:setValueTextBox(input_text, input_text:getText() - step/10.0)
self:applyValues()
end,
}
local button_plus = Button:new{
text = "+",
margin = Size.margin.small,
radius = 0,
width = self.button_width,
show_parent = self,
callback = function()
self:closeKeyboard()
self:setValueTextBox(input_text, input_text:getText() + step)
self:applyValues()
end,
hold_callback = function()
self:closeKeyboard()
self:setValueTextBox(input_text, input_text:getText() + step/10)
self:applyValues()
end,
}
table.insert(minus_number_plus, button_minus)
table.insert(minus_number_plus, input_text)
table.insert(minus_number_plus, button_plus)
return minus_number_plus
end
-- Get current values that are used in sysfs_light
function NaturalLightWidget:getCurrentValues()
return {white_gain =
self.powerd.fl.white_gain,
white_offset =
self.powerd.fl.white_offset,
red_gain =
self.powerd.fl.red_gain,
red_offset =
self.powerd.fl.red_offset,
green_gain =
self.powerd.fl.green_gain,
green_offset =
self.powerd.fl.green_offset,
exponent =
self.powerd.fl.exponent}
end
function NaturalLightWidget:createFrame()
self.nl_title = FrameContainer:new{
padding = Size.padding.default,
margin = Size.margin.title,
bordersize = 0,
TextWidget:new{
text = _("Natural light configuration"),
face = self.title_face,
bold = true,
width = math.floor(self.screen_width * 0.95),
},
}
local main_content = FrameContainer:new{
padding = Size.padding.button,
margin = Size.margin.small,
bordersize = 0,
self:createMainContent(math.floor(self.screen_width * 0.95),
math.floor(self.screen_height * 0.2))
}
local nl_line = LineWidget:new{
dimen = Geom:new{
w = self.width,
h = Size.line.thick,
}
}
self.nl_bar = OverlapGroup:new{
dimen = {
w = self.width,
h = self.nl_title:getSize().h
},
self.nl_title,
}
self.nl_frame = FrameContainer:new{
radius = Size.radius.window,
bordersize = Size.border.window,
padding = 0,
margin = 0,
background = Blitbuffer.COLOR_WHITE,
VerticalGroup:new{
align = "left",
self.nl_bar,
nl_line,
CenterContainer:new{
dimen = Geom:new{
w = nl_line:getSize().w,
h = main_content:getSize().h,
},
main_content,
},
}
}
self[1] = WidgetContainer:new{
align = "top",
dimen =Geom:new{
x = 0, y = 0,
w = self.screen_width,
h = self.screen_height,
},
FrameContainer:new{
bordersize = 0,
self.nl_frame,
}
}
end
function NaturalLightWidget:createMainContent(width, height)
self.fl_container = CenterContainer:new{
dimen = Geom:new{ w = width, h = height },
}
self.white_gain = self:adaptableNumber(self.powerd.fl.white_gain, 1)
self.white_offset = self:adaptableNumber(self.powerd.fl.white_offset, 1)
self.red_gain = self:adaptableNumber(self.powerd.fl.red_gain, 1)
self.red_offset = self:adaptableNumber(self.powerd.fl.red_offset, 1)
self.green_gain = self:adaptableNumber(self.powerd.fl.green_gain, 1)
self.green_offset = self:adaptableNumber(self.powerd.fl.green_offset, 1)
self.exponent = self:adaptableNumber(self.powerd.fl.exponent, 0.1)
local separator = HorizontalSpan:new{ width = Size.span.horizontal_default }
local vspan = VerticalSpan:new{ width = Size.span.vertical_large * 2}
local vertical_group = VerticalGroup:new{ align = "center" }
local title_group = HorizontalGroup:new{ align = "center" }
local white_group = HorizontalGroup:new{ align = "center" }
local red_group = HorizontalGroup:new{ align = "center" }
local green_group = HorizontalGroup:new{ align = "center" }
local exponent_group = HorizontalGroup:new{ align = "center" }
local button_group = HorizontalGroup:new{ align = "center" }
local text_gain = TextBoxWidget:new{
text = _("Amplification"),
face = self.medium_font_face,
bold = true,
alignment = "left",
width = self.textbox_width + 2 * self.button_width
}
local text_offset = TextBoxWidget:new{
text = _("Offset"),
face = self.medium_font_face,
bold = true,
alignment = "left",
width = self.textbox_width + self.button_width
}
local text_white = TextBoxWidget:new{
text = _("White"),
face = self.medium_font_face,
bold = true,
alignment = "left",
width = self.text_width
}
local text_red = TextBoxWidget:new{
text = _("Red"),
face = self.medium_font_face,
bold = true,
alignment = "left",
width = self.text_width
}
local text_green = TextBoxWidget:new{
text = _("Green"),
face = self.medium_font_face,
bold = true,
alignment = "left",
width = self.text_width
}
local text_exponent = TextBoxWidget:new{
text = _("Exponent"),
face = self.medium_font_face,
bold = true,
alignment = "left",
width = self.text_width
}
local button_defaults = Button:new{
text = "Restore Defaults",
margin = Size.margin.small,
radius = 0,
width = math.floor(self.width * 0.35),
show_parent = self,
callback = function()
self:setAllValues({white_gain = 25,
white_offset = -25,
red_gain = 24,
red_offset = 0,
green_gain = 24,
green_offset = -65,
exponent = 0.25})
end,
}
local button_cancel = Button:new{
text = "Cancel",
margin = Size.margin.small,
radius = 0,
width = math.floor(self.width * 0.2),
show_parent = self,
callback = function()
self:setAllValues(self.old_values)
self:onClose()
end,
}
local button_ok = Button:new{
text = "Save",
margin = Size.margin.small,
radius = 0,
width = math.floor(self.width * 0.2),
show_parent = self,
callback = function()
G_reader_settings:saveSetting("natural_light_config",
self:getCurrentValues())
self:onClose()
end,
}
table.insert(title_group, HorizontalSpan:new{
width = self.text_width + self.button_width
})
table.insert(title_group, text_gain)
table.insert(title_group, separator)
table.insert(title_group, HorizontalSpan:new{
width = self.button_width
})
table.insert(title_group, text_offset)
table.insert(white_group, text_white)
table.insert(white_group, self.white_gain)
table.insert(white_group, separator)
table.insert(white_group, self.white_offset)
table.insert(red_group, text_red)
table.insert(red_group, self.red_gain)
table.insert(red_group, separator)
table.insert(red_group, self.red_offset)
table.insert(green_group, text_green)
table.insert(green_group, self.green_gain)
table.insert(green_group, separator)
table.insert(green_group, self.green_offset)
table.insert(exponent_group, text_exponent)
table.insert(exponent_group, self.exponent)
table.insert(button_group, button_defaults)
table.insert(button_group, HorizontalSpan:new{
width = 0.05*self.width
})
table.insert(button_group, button_cancel)
table.insert(button_group, button_ok)
table.insert(vertical_group, title_group)
table.insert(vertical_group, white_group)
table.insert(vertical_group, red_group)
table.insert(vertical_group, green_group)
table.insert(vertical_group, vspan)
table.insert(vertical_group, exponent_group)
table.insert(vertical_group, vspan)
table.insert(vertical_group, button_group)
table.insert(self.fl_container, vertical_group)
-- Reset container height to what it actually contains
self.fl_container.dimen.h = vertical_group:getSize().h
UIManager:setDirty(self, "ui")
return self.fl_container
end
function NaturalLightWidget:setAllValues(values)
self:setValueTextBox(self.white_gain[2], values.white_gain)
self:setValueTextBox(self.white_offset[2], values.white_offset)
self:setValueTextBox(self.red_gain[2], values.red_gain)
self:setValueTextBox(self.red_offset[2], values.red_offset)
self:setValueTextBox(self.green_gain[2], values.green_gain)
self:setValueTextBox(self.green_offset[2], values.green_offset)
self:setValueTextBox(self.exponent[2], values.exponent)
self:applyValues()
end
function NaturalLightWidget:setValueTextBox(widget, val)
widget:focus()
widget:setText(val)
widget:unfocus()
end
function NaturalLightWidget:onCloseWidget()
self:closeKeyboard()
UIManager:setDirty(nil, function()
return "partial", self.nl_frame.dimen
end)
-- Tell frontlight widget that we're closed
self.fl_widget:naturalLightConfigClose()
return true
end
function NaturalLightWidget:onShow()
UIManager:setDirty(self, function()
return "ui", self.nl_frame.dimen
end)
-- Tell the frontlight widget that we're open
self.fl_widget:naturalLightConfigOpen()
-- Store values in case user cancels
self.old_values = self:getCurrentValues()
return true
end
function NaturalLightWidget:onClose()
UIManager:close(self)
return true
end
function NaturalLightWidget:onShowKeyboard()
if self._current_input then
self._current_input:onShowKeyboard()
self._current_input:focus()
end
end
function NaturalLightWidget:onCloseKeyboard()
if self._current_input then
self._current_input:onCloseKeyboard()
self._current_input:unfocus()
-- Make sure the cursor is deleted
UIManager:setDirty(self._current_input, "fast")
end
end
function NaturalLightWidget:onSwitchFocus(inputbox)
self:onCloseKeyboard()
self._current_input = inputbox
self:applyValues()
self:onShowKeyboard()
end
function NaturalLightWidget:closeKeyboard()
if self._current_input then
self._current_input:onCloseKeyboard()
self._current_input:unfocus()
end
end
return NaturalLightWidget