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koreader/frontend/ui/widget/spinwidget.lua

281 lines
8.0 KiB
Lua

local Blitbuffer = require("ffi/blitbuffer")
local ButtonTable = require("ui/widget/buttontable")
local CenterContainer = require("ui/widget/container/centercontainer")
local CloseButton = require("ui/widget/closebutton")
local Device = require("device")
local FrameContainer = require("ui/widget/container/framecontainer")
local Geom = require("ui/geometry")
local GestureRange = require("ui/gesturerange")
local Font = require("ui/font")
local HorizontalGroup = require("ui/widget/horizontalgroup")
local InputContainer = require("ui/widget/container/inputcontainer")
local LineWidget = require("ui/widget/linewidget")
local MovableContainer = require("ui/widget/container/movablecontainer")
local NumberPickerWidget = require("ui/widget/numberpickerwidget")
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 WidgetContainer = require("ui/widget/container/widgetcontainer")
local _ = require("gettext")
local Screen = Device.screen
local SpinWidget = InputContainer:new{
title_text = "",
title_face = Font:getFace("x_smalltfont"),
info_text = nil,
width = math.floor(Screen:getWidth() * 0.95),
height = Screen:getHeight(),
value_table = nil,
value_index = nil,
value = 1,
value_max = 20,
value_min = 0,
value_step = 1,
value_hold_step = 4,
cancel_text = _("Close"),
ok_text = _("Apply"),
cancel_callback = nil,
callback = nil,
close_callback = nil,
keep_shown_on_apply = false,
-- Set this to add default button that restores number to its default value
default_value = nil,
default_text = _("Use default"),
-- Optional extra button on bottom
extra_text = nil,
extra_callback = nil,
}
function SpinWidget:init()
self.medium_font_face = Font:getFace("ffont")
self.light_bar = {}
self.screen_width = Screen:getWidth()
self.screen_height = Screen:getHeight()
if Device:hasKeys() then
self.key_events = {
Close = { {"Back"}, doc = "close spin widget" }
}
end
if Device:isTouchDevice() then
self.ges_events = {
TapClose = {
GestureRange:new{
ges = "tap",
range = Geom:new{
w = self.screen_width,
h = self.screen_height,
}
},
},
}
end
-- Actually the widget layout
self:update()
end
function SpinWidget:update()
local value_widget = NumberPickerWidget:new{
show_parent = self,
width = math.floor(self.screen_width * 0.2),
value = self.value,
value_table = self.value_table,
value_index = self.value_index,
value_min = self.value_min,
value_max = self.value_max,
value_step = self.value_step,
value_hold_step = self.value_hold_step,
precision = self.precision,
}
local value_group = HorizontalGroup:new{
align = "center",
value_widget,
}
local close_button = CloseButton:new{ window = self, padding_top = Size.margin.title, }
local btn_width = close_button:getSize().w + Size.padding.default * 2
local value_title = FrameContainer:new{
padding = Size.padding.default,
margin = Size.margin.title,
bordersize = 0,
TextWidget:new{
text = self.title_text,
max_width = self.width - btn_width,
face = self.title_face,
bold = true,
},
}
local value_line = LineWidget:new{
dimen = Geom:new{
w = self.width,
h = Size.line.thick,
}
}
local value_bar = OverlapGroup:new{
dimen = {
w = self.width,
h = value_title:getSize().h
},
value_title,
close_button,
}
local buttons = {
{
{
text = self.cancel_text,
callback = function()
if self.cancel_callback then
self.cancel_callback()
end
self:onClose()
end,
},
{
text = self.ok_text,
callback = function()
if self.callback then
self.value, self.value_index = value_widget:getValue()
self.callback(self)
end
if not self.keep_shown_on_apply then
self:onClose()
end
end,
},
}
}
if self.default_value then
table.insert(buttons,{
{
text = self.default_text,
callback = function()
value_widget.value = self.default_value
value_widget:update()
end,
},
})
end
if self.extra_text then
table.insert(buttons,{
{
text = self.extra_text,
callback = function()
if self.extra_callback then
self.value, self.value_index = value_widget:getValue()
self.extra_callback(self)
end
if not self.keep_shown_on_apply then -- assume extra wants it same as ok
self:onClose()
end
end,
},
})
end
local ok_cancel_buttons = ButtonTable:new{
width = self.width - 2*Size.padding.default,
buttons = buttons,
zero_sep = true,
show_parent = self,
}
local vgroup = VerticalGroup:new{
align = "left",
value_bar,
value_line,
}
if self.info_text then
table.insert(vgroup, FrameContainer:new{
padding = Size.padding.default,
margin = Size.margin.small,
bordersize = 0,
TextBoxWidget:new{
text = self.info_text,
face = Font:getFace("x_smallinfofont"),
width = math.floor(self.width * 0.9),
}
})
end
table.insert(vgroup, CenterContainer:new{
dimen = Geom:new{
w = self.width,
h = value_group:getSize().h + math.floor(self.screen_height * 0.1),
},
value_group
})
table.insert(vgroup, CenterContainer:new{
dimen = Geom:new{
w = self.width,
h = ok_cancel_buttons:getSize().h,
},
ok_cancel_buttons
})
self.spin_frame = FrameContainer:new{
radius = Size.radius.window,
padding = 0,
margin = 0,
background = Blitbuffer.COLOR_WHITE,
vgroup,
}
self.movable = MovableContainer:new{
self.spin_frame,
}
self[1] = WidgetContainer:new{
align = "center",
dimen =Geom:new{
x = 0, y = 0,
w = self.screen_width,
h = self.screen_height,
},
self.movable,
}
UIManager:setDirty(self, function()
return "ui", self.spin_frame.dimen
end)
end
function SpinWidget:hasMoved()
local offset = self.movable:getMovedOffset()
return offset.x ~= 0 or offset.y ~= 0
end
function SpinWidget:onCloseWidget()
UIManager:setDirty(nil, function()
return "ui", self.spin_frame.dimen
end)
end
function SpinWidget:onShow()
UIManager:setDirty(self, function()
return "ui", self.spin_frame.dimen
end)
return true
end
function SpinWidget:onAnyKeyPressed()
self:onClose()
return true
end
function SpinWidget:onTapClose(arg, ges_ev)
if ges_ev.pos:notIntersectWith(self.spin_frame.dimen) then
self:onClose()
end
return true
end
function SpinWidget:onClose()
UIManager:close(self)
if self.close_callback then
self.close_callback()
end
return true
end
return SpinWidget