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widget.lua
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widget.lua
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---@class Zenitha.WidgetArg: table
---
---@field type 'text'|'image'|'button'|'button_fill'|'button_invis'|'checkBox'|'switch'|'slider'|'slider_fill'|'slider_progress'|'selector'|'inputBox'|'textBox'|'listBox'|string
---@field name? string
---@field pos? table
---
---@field x? number
---@field y? number
---@field w? number
---@field h? number
---@field widthLimit? number
---
---@field color? Zenitha.ColorStr|Zenitha.Color
---@field text? string|function
---@field fontSize? number
---@field fontType? string
---@field image? string|love.Drawable Can use slash-path to read from IMG lib
---@field alignX? 'left'|'right'|'center'
---@field alignY? 'top'|'bottom'|'center'
---@field labelPos? 'left'|'right'|'top'|'bottom' Some widget (like Slider) didn't use 'top'
---@field labelDistance? number
---@field disp? function Must return the value that widget should show
---@field code? function Called 'When triggered'
---@field visibleFunc? function Used to determine if widget is visible when scene changed
---@field visibleTick? function Used to change widget's visibility every frame
---
---@field lineWidth? number
---@field cornerR? number Round corner ratio
---
---@field textColor? Zenitha.ColorStr|Zenitha.Color
---@field fillColor? Zenitha.ColorStr|Zenitha.Color
---@field frameColor? Zenitha.ColorStr|Zenitha.Color
---@field activeColor? Zenitha.ColorStr|Zenitha.Color
---@field idleColor? Zenitha.ColorStr|Zenitha.Color
---
---@field sound_press? string
---@field sound_hover? string
---
---@field ang? number [image]
---@field k? number [image]
---
---@field sound_on? string [checkBox]
---@field sound_off? string [checkBox]
---
---@field axis? {minVal:number, maxVal:number, step?:number} [slider]
---@field smooth? boolean Unit point visibility [slider]
---@field valueShow? false|'int'|'float'|'percent'|function Value showing mode or function [called with widgetObj) [slider]
---@field lineDist? number Outline dist from the bat [slider_fill]
---
---@field selFontSize? number [selector]
---@field selFontType? string [selector]
---@field list? table [selector]
---@field show? function [selector]
---
---@field secret? boolean [inputBox]
---@field regex? string [inputBox]
---@field maxInputLength? number [inputBox]
---@field sound_input? string [inputBox]
---@field sound_bksp? string [inputBox]
---@field sound_clear? string [inputBox]
---@field sound_fail? string [inputBox]
---
---@field scrollBarPos? number [textBox & listBox]
---@field scrollBarWidth? number [textBox & listBox]
---@field scrollBarDist? number [textBox & listBox]
---@field scrollBarColor? Zenitha.ColorStr|Zenitha.Color [textBox & listBox]
---@field lineHeight? number [textBox & listBox]
---
---@field yOffset? number [textBox]
---@field fixContent? boolean [textBox]
---
---@field drawFunc? function [listBox]
---@field releaseDist? number [listBox]
---@field stencilMode? 'total'|'single'|false [listBox]
---@field sound_click? string [listBox]
---@field sound_select? string [listBox]
local gc_translate,gc_scale=GC.translate,GC.scale
local gc_push,gc_pop=GC.push,GC.pop
local gc_setColor,gc_setLineWidth=GC.setColor,GC.setLineWidth
local gc_draw,gc_line=GC.draw,GC.line
local gc_rectangle,gc_circle=GC.rectangle,GC.circle
local gc_print,gc_printf=GC.print,GC.printf
local gc_mStr=GC.mStr
local gc_stc_reset,gc_stc_stop=GC.stc_reset,GC.stc_stop
local gc_stc_circ,gc_stc_rect=GC.stc_circ,GC.stc_rect
local gc_mRect=GC.mRect
local kb=love.keyboard
local timer=love.timer.getTime
local assert,next=assert,next
local floor,ceil=math.floor,math.ceil
local max,min=math.max,math.min
local abs,clamp=math.abs,MATH.clamp
local sub,ins,rem=string.sub,table.insert,table.remove
local SCN,SCR,xOy=SCN,SCR,SCR.xOy
local setFont,getFont=FONT.set,FONT.get
local utf8=require('utf8')
local indexMeta={
__index=function(L,k)
for i=1,#L do
if L[i].name==k then
return L[i]
end
end
end,
}
local function updateWheel(self,d)
self._floatWheel=self._floatWheel+(d or 0)
if abs(self._floatWheel)>=1 then
local n=MATH.sign(self._floatWheel)*floor(abs(self._floatWheel))
self._floatWheel=self._floatWheel-n
return n
end
end
local function alignDraw(self,drawable,x,y,ang,kx,ky)
local w=drawable:getWidth()
local h=drawable:getHeight()
if not kx then kx=min(self.widthLimit/w,1) end
if not ky then ky=kx or 1 end
local ox=self.alignX=='left' and 0 or self.alignX=='right' and w or w*.5
local oy=self.alignY=='top' and 0 or self.alignY=='bottom' and h or h*.5
gc_draw(drawable,x,y,ang,kx,ky,ox,oy)
end
local leftAngle=GC.load{20,20,
{'setLW',5},
{'line', 18,2,1,10,18,18},
}
local rightAngle=GC.load{20,20,
{'setLW',5},
{'line', 2,2,19,10,2,18},
}
local Widgets={}
--------------------------------------------------------------
---@class Zenitha.Widget.base not used by user
---@field _widget true
---@field type string
---@field name string|false
---
---@field color Zenitha.ColorStr|Zenitha.Color
---@field textColor Zenitha.ColorStr|Zenitha.Color
---@field fillColor Zenitha.ColorStr|Zenitha.Color
---@field frameColor Zenitha.ColorStr|Zenitha.Color
---@field activeColor Zenitha.ColorStr|Zenitha.Color
---@field idleColor Zenitha.ColorStr|Zenitha.Color
---
---@field lineWidth number
---@field cornerR number
---
---@field sound_press string|false
---@field sound_hover string|false
---
---@field _text love.Drawable|false
---@field _image love.Drawable|false
---@field _hoverTime number
---@field _hoverTimeMax number
---@field _pressed boolean
---@field _pressTime number
---@field _pressTimeMax number
---@field _visible boolean|nil
---
---@field reset function
---@field press function
---@field release function
---@field scroll function
---@field drag function
---@field update function
---@field draw function
---@field isAbove function
---@field arrowKey function
---@field keypress function
---@field code function
Widgets.base={
_widget=true,
type='null',
name=false,
text=false,
image=false,
keepFocus=false,
x=0,y=0,
color='L',
textColor='L',
fillColor='L',
frameColor='L',
activeColor='LY',
idleColor='L',
pos=false,
lineWidth=4,cornerR=3,
fontSize=30,fontType=false,
widthLimit=1e99,
labelPos='left',
alignX='center',alignY='center',
sound_press=false,sound_hover=false,
isAbove=NULL,
draw=NULL,
visibleFunc=false, -- function return a boolean
visibleTick=false, -- function return a boolean
_text=false,
_image=false,
_hoverTime=0,
_hoverTimeMax=.1,
_pressed=false,
_pressTime=0,
_pressTimeMax=.05,
_visible=nil,
buildArgs={},
}
function Widgets.base:getInfo()
local str=''
for _,v in next,self.buildArgs do
str=str..v..'='..tostring(self[v])..'\n'
end
return str
end
function Widgets.base:reset()
assert(not self.name or type(self.name)=='string',"[widget].name need string")
assert(type(self.x)=='number',"[widget].x need number")
assert(type(self.y)=='number',"[widget].y need number")
if type(self.color)=='string' then self.color=COLOR[self.color] end
assert(type(self.color)=='table',"[widget].color need table")
if type(self.textColor)=='string' then self.textColor=COLOR[self.textColor] end
assert(type(self.textColor)=='table',"[widget].textColor need table")
if type(self.fillColor)=='string' then self.fillColor=COLOR[self.fillColor] end
assert(type(self.fillColor)=='table',"[widget].fillColor need table")
if type(self.frameColor)=='string' then self.frameColor=COLOR[self.frameColor] end
assert(type(self.frameColor)=='table',"[widget].frameColor need table")
if type(self.activeColor)=='string' then self.activeColor=COLOR[self.activeColor] end
assert(type(self.activeColor)=='table',"[widget].activeColor need table")
if type(self.idleColor)=='string' then self.idleColor=COLOR[self.idleColor] end
assert(type(self.idleColor)=='table',"[widget].idleColor need table")
assert(type(self.lineWidth)=='number',"[widget].lineWidth need number")
assert(type(self.cornerR)=='number',"[widget].cornerR need number")
assert(self.alignX=='left' or self.alignX=='right' or self.alignX=='center',"[widget].alignX need 'left', 'right' or 'center'")
assert(self.alignY=='top' or self.alignY=='bottom' or self.alignY=='center',"[widget].alignY need 'top', 'bottom' or 'center'")
assert(self.labelPos=='left' or self.labelPos=='right' or self.labelPos=='top' or self.labelPos=='bottom',"[widget].labelPos need 'left', 'right', 'top', or 'bottom'")
if self.pos then
assert(
type(self.pos)=='table' and
(type(self.pos[1])=='number' or self.pos[1]==false) and
(type(self.pos[2])=='number' or self.pos[2]==false),
"[widget].pos[1] and [2] need number|false}"
)
self._x=self.x+(self.pos[1] and self.pos[1]*(SCR.w0+2*SCR.x/SCR.k)-SCR.x/SCR.k or 0)
self._y=self.y+(self.pos[2] and self.pos[2]*(SCR.h0+2*SCR.y/SCR.k)-SCR.y/SCR.k or 0)
else
self._x=self.x
self._y=self.y
end
assert(type(self.fontSize)=='number',"[widget].fontSize need number")
assert(type(self.fontType)=='string' or self.fontType==false,"[widget].fontType need string")
assert(type(self.widthLimit)=='number',"[widget].widthLimit need number")
assert(not self.visibleFunc or type(self.visibleFunc)=='function',"[widget].visibleFunc need function")
assert(not self.visibleTick or type(self.visibleTick)=='function',"[widget].visibleTick need function")
assert(not self.sound_press or type(self.sound_press)=='string',"[widget].sound_press need string")
assert(not self.sound_hover or type(self.sound_hover)=='string',"[widget].sound_hover need string")
self._text=self.text or self.name and ("["..self.name.."]")
if self._text then
if type(self._text)=='function' then
self._text=self._text()
end
assert(type(self._text)=='string',"[widget].text need string|fun():string")
self._text=GC.newText(getFont(self.fontSize,self.fontType),self._text)
else
self._text=PAPER
end
self._image=false
if self.image then
if type(self.image)=='string' then
local path=STRING.split(self.image,'/')
local _img=IMG
repeat
_img=_img[rem(path,1)]
until not (path[1] and _img)
self._image=_img or PAPER
else
self._image=self.image
end
end
self._hoverTime=0
if self._visible==nil then
self._visible=true
end
if self.visibleFunc then
self._visible=self.visibleFunc()
elseif self.visibleTick then
self._visible=self.visibleTick()
end
end
function Widgets.base:setVisible(bool)
if bool==nil then
if self.visibleFunc then
self._visible=self.visibleFunc()
elseif self.visibleTick then
self._visible=self.visibleTick()
end
else
self._visible=bool and true or false
end
end
function Widgets.base:update(dt)
if self._pressed then
self._pressTime=min(self._pressTime+dt,self._pressTimeMax)
else
self._pressTime=max(self._pressTime-dt,0)
end
if WIDGET.sel==self then
self._hoverTime=min(self._hoverTime+dt,self._hoverTimeMax)
else
self._hoverTime=max(self._hoverTime-dt,0)
end
end
function Widgets.base.press() end
function Widgets.base.release() end
function Widgets.base.drag() end
function Widgets.base.scroll() end
---@class Zenitha.Widget.text: Zenitha.Widget.base
Widgets.text=setmetatable({
type='text',
text=false,
buildArgs={
'name',
'pos',
'x','y',
'color','text',
'fontSize','fontType',
'alignX','alignY',
'widthLimit',
'visibleFunc',
'visibleTick',
},
},{__index=Widgets.base,__metatable=true})
function Widgets.text:reset()
Widgets.base.reset(self)
end
function Widgets.text:draw()
if self._text then
gc_setColor(self.color)
alignDraw(self,self._text,self._x,self._y)
end
end
---@class Zenitha.Widget.image: Zenitha.Widget.base
---@field _kx number|false
---@field _ky number|false
Widgets.image=setmetatable({
type='image',
w=false,h=false,k=false,
ang=0,
image=false,
_kx=false,_ky=false,
buildArgs={
'name',
'pos',
'x','y',
'k','w','h', -- Not compatible
'ang',
'image',
'alignX','alignY',
'visibleFunc',
'visibleTick',
},
},{__index=Widgets.base,__metatable=true})
function Widgets.image:reset()
Widgets.base.reset(self)
assert(not self.k or not (self.w or self.h),"[image].w/h and .k cannot appear simultaneously")
if not self._image then return end
if self.k then
self._kx,self._ky=self.k,self.k
elseif self.w or self.h then
if self.w then self._kx=self.w/self._image:getWidth() end
if self.h then self._ky=self.h/self._image:getHeight() end
if not self.w then self._kx=self._ky end
if not self.h then self._ky=self._kx end
else
self._kx,self._ky=1,1
end
end
function Widgets.image:setImage(_img)
self.image=_img
self:reset()
end
function Widgets.image:draw()
if self._image then
gc_setColor(1,1,1)
alignDraw(self,self._image,self._x,self._y,self.ang,self._kx,self._ky)
end
end
---@class Zenitha.Widget.button: Zenitha.Widget.base
---@field w number
---@field h number
---@field sound_trigger string|false
Widgets.button=setmetatable({
type='button',
w=40,h=false,
text=false,
image=false,
cornerR=10,
sound_trigger=false,
textColor=false,
code=NULL,
buildArgs={
'name',
'pos',
'x','y','w','h',
'lineWidth','cornerR',
'alignX','alignY',
'text','image',
'color','textColor',
'fontSize','fontType',
'sound_trigger',
'sound_press','sound_hover',
'code',
'visibleFunc',
'visibleTick',
},
},{__index=Widgets.base,__metatable=true})
function Widgets.button:reset()
if self.textColor==false then self.textColor=self.color end
Widgets.base.reset(self)
if not self.h then self.h=self.w end
assert(self.w and type(self.w)=='number',"[button].w need number")
assert(self.h and type(self.h)=='number',"[button].h need number")
assert(not self.sound_trigger or type(self.sound_trigger)=='string',"[button].sound_trigger need string")
self.widthLimit=self.w
end
function Widgets.button:isAbove(x,y)
return
abs(x-self._x)<self.w*.5 and
abs(y-self._y)<self.h*.5
end
function Widgets.button:press()
self._pressed=true
end
function Widgets.button:release(_,_,k)
if self._pressed then
self._pressed=false
if self.sound_trigger then
SFX.play(self.sound_trigger)
end
self.code(k)
end
end
function Widgets.button:drag(x,y)
if not self:isAbove(x,y) and self==WIDGET.sel then
WIDGET.unFocus()
self._pressed=false
end
end
function Widgets.button:draw()
gc_push('transform')
gc_translate(self._x,self._y)
if self._pressTime>0 then
gc_scale(1-self._pressTime/self._pressTimeMax*.0626)
end
local w,h=self.w,self.h
local c=self.color
-- Background
gc_setColor(c[1],c[2],c[3],.1+.2*self._hoverTime/self._hoverTimeMax)
gc_mRect('fill',0,0,w,h,self.cornerR)
-- Frame
gc_setLineWidth(self.lineWidth)
gc_setColor(.2+c[1]*.8,.2+c[2]*.8,.2+c[3]*.8,.95)
gc_mRect('line',0,0,w,h,self.cornerR)
-- Drawable
if self._image then
gc_setColor(1,1,1)
alignDraw(self,self._image)
end
if self._text then
gc_setColor(self.textColor)
alignDraw(self,self._text)
end
gc_pop()
end
---@class Zenitha.Widget.button_fill: Zenitha.Widget.button
Widgets.button_fill=setmetatable({
type='button_fill',
textColor='D',
buildArgs=TABLE.combine(Widgets.button.buildArgs,{'textColor'}),
},{__index=Widgets.button,__metatable=true})
function Widgets.button_fill:draw()
gc_push('transform')
gc_translate(self._x,self._y)
if self._pressTime>0 then
gc_scale(1-self._pressTime/self._pressTimeMax*.0626)
end
local w,h=self.w,self.h
local HOV=self._hoverTime/self._hoverTimeMax
local c=self.color
local r,g,b=c[1],c[2],c[3]
-- Rectangle
gc_setColor(.15+r*.7*(1-HOV*.26),.15+g*.7*(1-HOV*.26),.15+b*.7*(1-HOV*.26),.9)
gc_mRect('fill',0,0,w,h,self.cornerR)
-- Drawable
if self._image then
gc_setColor(1,1,1)
alignDraw(self,self._image)
end
if self._text then
gc_setColor(self.textColor)
alignDraw(self,self._text)
end
gc_pop()
end
---@class Zenitha.Widget.button_invis: Zenitha.Widget.button
Widgets.button_invis=setmetatable({
type='button_invis',
sound_trigger=false,
},{__index=Widgets.button,__metatable=true})
function Widgets.button_invis:draw()
gc_push('transform')
gc_translate(self._x,self._y)
local w,h=self.w,self.h
local HOV=self._hoverTime/self._hoverTimeMax
local c=self.color
-- Rectangle
gc_setColor(c[1],c[2],c[3],HOV*.16)
gc_mRect('fill',0,0,w,h,self.cornerR)
-- Drawable
if self._image then
gc_setColor(1,1,1)
alignDraw(self,self._image)
end
if self._text then
gc_setColor(c)
alignDraw(self,self._text)
end
gc_pop()
end
---@class Zenitha.Widget.checkBox: Zenitha.Widget.base
---@field w number
---@field sound_on string|false
---@field sound_off string|false
Widgets.checkBox=setmetatable({
type='checkBox',
w=30,
text=false,
image=false,
labelDistance=20,
sound_on=false,sound_off=false,
disp=false, -- function return a boolean
code=NULL,
buildArgs={
'name',
'pos',
'x','y','w',
'lineWidth','cornerR',
'labelPos',
'labelDistance',
'color','text',
'fontSize','fontType',
'widthLimit',
'sound_on','sound_off',
'sound_press','sound_hover',
'disp','code',
'visibleFunc',
'visibleTick',
},
},{__index=Widgets.base,__metatable=true})
function Widgets.checkBox:reset()
Widgets.base.reset(self)
assert(type(self.disp)=='function',"[checkBox].disp need function")
assert(not self.sound_on or type(self.sound_on)=='string',"[checkBox].sound_on need string")
assert(not self.sound_off or type(self.sound_off)=='string',"[checkBox].sound_off need string")
self.alignX=self.labelPos=='left' and 'right' or self.labelPos=='right' and 'left' or 'center'
self.alignY=self.labelPos=='top' and 'bottom' or self.labelPos=='bottom' and 'top' or 'center'
end
function Widgets.checkBox:isAbove(x,y)
return
abs(x-self._x)<self.w*.5 and
abs(y-self._y)<self.w*.5
end
function Widgets.checkBox:press(_,_,k)
self.code(k)
if self.disp() then
if self.sound_on then
SFX.play(self.sound_on)
end
else
if self.sound_off then
SFX.play(self.sound_off)
end
end
end
function Widgets.checkBox:draw()
gc_push('transform')
gc_translate(self._x,self._y)
local w=self.w
local HOV=self._hoverTime/self._hoverTimeMax
local c=self.color
-- Background
gc_setColor(c[1],c[2],c[3],.3*HOV)
gc_mRect('fill',0,0,w,w,self.cornerR)
-- Frame
gc_setLineWidth(self.lineWidth)
gc_setColor(.2+c[1]*.8,.2+c[2]*.8,.2+c[3]*.8)
gc_mRect('line',0,0,w,w,self.cornerR)
if self.disp() then
gc_scale(.5*w)
gc_setLineWidth(self.lineWidth*2/w)
gc_line(-.7,.05,-.2,.5,.7,-.55)
gc_scale(2/w)
end
-- Drawable
local x2,y2=0,0
if self.labelPos=='left' then
x2=-w*.5-self.labelDistance
elseif self.labelPos=='right' then
x2=w*.5+self.labelDistance
elseif self.labelPos=='top' then
y2=-w*.5-self.labelDistance
elseif self.labelPos=='bottom' then
y2=w*.5+self.labelDistance
end
if self._image then
gc_setColor(1,1,1)
alignDraw(self,self._image,x2,y2)
end
if self._text then
gc_setColor(c)
alignDraw(self,self._text,x2,y2)
end
gc_pop()
end
---@class Zenitha.Widget.switch: Zenitha.Widget.checkBox
---@field _slideTime number
Widgets.switch=setmetatable({
type='switch',
h=30,
fillColor='lS',
text=false,
image=false,
labelDistance=20,
disp=false, -- function return a boolean
code=NULL,
_slideTime=false,
buildArgs={
'name',
'pos',
'x','y','h',
'labelPos',
'labelDistance',
'color','fillColor',
'text','fontSize','fontType',
'lineWidth','widthLimit',
'sound_on','sound_off',
'sound_press','sound_hover',
'disp','code',
'visibleFunc',
'visibleTick',
},
},{__index=Widgets.checkBox,__metatable=true})
function Widgets.switch:reset()
Widgets.base.reset(self)
assert(type(self.disp)=='function',"[switch].disp need function")
self._slideTime=0
self.alignX=self.labelPos=='left' and 'right' or self.labelPos=='right' and 'left' or 'center'
self.alignY=self.labelPos=='top' and 'bottom' or self.labelPos=='bottom' and 'top' or 'center'
end
function Widgets.switch:isAbove(x,y)
return
self.disp and
abs(x-self._x)<self.h and
abs(y-self._y)<self.h*.5
end
function Widgets.switch:update(dt)
Widgets.base.update(self,dt)
if self.disp() then
self._slideTime=min(self._slideTime+dt,self._hoverTimeMax/2)
else
self._slideTime=max(self._slideTime-dt,-self._hoverTimeMax/2)
end
end
function Widgets.switch:draw()
gc_push('transform')
gc_translate(self._x,self._y)
local h=self.h
local HOV=self._hoverTime/self._hoverTimeMax
local c=self.color
-- Background
gc_setColor(self.fillColor[1],self.fillColor[2],self.fillColor[3],self._slideTime/self._hoverTimeMax+.5)
gc_mRect('fill',0,0,h*2,h,h*.5)
-- Frame
gc_setLineWidth(self.lineWidth)
gc_setColor(.2+c[1]*.8,.2+c[2]*.8,.2+c[3]*.8,.8+.2*HOV)
gc_mRect('line',0,0,h*2,h,h*.5)
-- Axis
gc_setColor(1,1,1,.8+.2*HOV)
gc_circle('fill',h*(self._slideTime/self._hoverTimeMax),0,h*(.35+HOV*.05))
-- Drawable
local x2,y2=0,0
if self.labelPos=='left' then
x2=-h-self.labelDistance
elseif self.labelPos=='right' then
x2=h+self.labelDistance
elseif self.labelPos=='top' then
y2=-h*.5-self.labelDistance
elseif self.labelPos=='bottom' then
y2=h*.5+self.labelDistance
end
if self._image then
gc_setColor(1,1,1)
alignDraw(self,self._image,x2,y2)
end
if self._text then
gc_setColor(c)
alignDraw(self,self._text,x2,y2)
end
gc_pop()
end
---@class Zenitha.Widget.slider: Zenitha.Widget.base
---@field w number
---@field valueShow false|'int'|'float'|'percent'|function
---@field numFontSize number
---@field numFontType false|string
---@field sound_drag string|false
---@field soundInterval number
---@field soundPitchRange number
---@field _showFunc function
---@field _pos number
---@field _pos0 number
---@field _rangeL number|false
---@field _rangeR number|false
---@field _rangeWidth number
---@field _unit number
---@field _smooth boolean
---@field _textShowTime number
---@field _lastSoundTime number
Widgets.slider=setmetatable({
type='slider',
w=100,
axis={0,1},
smooth=false,
text=false,
image=false,
labelDistance=20,
numFontSize=25,numFontType=false,
valueShow=nil,
textAlwaysShow=false,
sound_drag=false,
soundInterval=.0626,
soundPitchRange=0,
disp=false, -- function return the displaying _value
code=NULL,
_floatWheel=0,
_showFunc=false,
_pos=false,
_pos0=false,
_rangeL=false,
_rangeR=false,
_rangeWidth=false, -- just _rangeR-_rangeL, for convenience
_unit=false,
_smooth=false,
_textShowTime=false,
_approachSpeed=26,
_lastSoundTime=0,
buildArgs={
'name',
'pos',
'x','y','w',
'lineWidth','cornerR',
'axis','smooth',
'labelPos',
'labelDistance',
'color','textColor','fillColor',
'text',
'fontSize','fontType',
'numFontSize','numFontType',
'widthLimit',
'textAlwaysShow',
'sound_drag',
'soundInterval',
'soundPitchRange',
'valueShow',
'disp','code',
'visibleFunc',
'visibleTick',
},
},{__index=Widgets.base,__metatable=true})
local sliderShowFunc={
null=function()
return ''
end,
int=function(S)
return S._pos0
end,
float=function(S)
return floor(S._pos0*100+.5)*.01
end,
percent=function(S)
return floor(S._pos0*100+.5)..'%'
end,
}
function Widgets.slider:reset()
Widgets.base.reset(self)
assert(self.w and type(self.w)=='number',"[slider].w need number")
assert(type(self.numFontSize)=='number',"[widget].numFontSize need number")
assert(type(self.numFontType)=='string' or self.numFontType==false,"[widget].numFontType need string")
assert(type(self.disp)=='function',"[slider].disp need function")
assert(
type(self.axis)=='table' and (#self.axis==2 or #self.axis==3) and
type(self.axis[1])=='number' and
type(self.axis[2])=='number' and
(not self.axis[3] or type(self.axis[3])=='number'),
"[slider].axis need {low,high} or {low,high,unit}"
)
assert(self.smooth==nil or type(self.smooth)=='boolean',"[slider].smooth need boolean")
assert(not self.sound_drag or type(self.sound_drag)=='string',"[slider].sound_drag need string")
assert(type(self.soundInterval)=='number',"[slider].soundInterval need number")
assert(type(self.soundPitchRange)=='number',"[slider].soundPitchRange need number")
self._rangeL=self.axis[1]
self._rangeR=self.axis[2]
self._rangeWidth=self._rangeR-self._rangeL
self._unit=self.axis[3]
if self.smooth==nil then
self._smooth=not self.axis[3]
else
self._smooth=self.smooth
end
self._pos=self._rangeL
self._pos0=self._rangeL
self._textShowTime=3
if self.valueShow then
if type(self.valueShow)=='function' then
self._showFunc=self.valueShow
elseif type(self.valueShow)=='string' then
self._showFunc=assert(sliderShowFunc[self.valueShow],"[slider].valueShow need function, or 'int', 'float', or 'percent'")
end
elseif self.valueShow==false then -- Show nothing if false
self._showFunc=sliderShowFunc.null
else -- Use default if nil
if self._unit and self._unit%1==0 then
self._showFunc=sliderShowFunc.int
else
self._showFunc=sliderShowFunc.percent
end
end
assert(self.labelPos~='top',"[slider].labelPos cannot be 'top'")
self.alignX=self.labelPos=='left' and 'right' or self.labelPos=='right' and 'left' or 'center'
if self.labelPos=='bottom' then
self.alignY='top'
self.labelDistance=max(self.labelDistance,20)
end
end
function Widgets.slider:isAbove(x,y)
return
x>self._x-10 and
x<self._x+self.w+10 and
abs(y-self._y)<25
end
function Widgets.slider:update(dt)
Widgets.base.update(self,dt)
if self._visible then
self._pos0=self.disp()
self._pos=MATH.expApproach(self._pos,self._pos0,dt*self._approachSpeed)
end
if WIDGET.sel==self then
self._textShowTime=2
end
if not self.textAlwaysShow then
self._textShowTime=max(self._textShowTime-dt,0)
end
end
function Widgets.slider:draw()
local x,y=self._x,self._y
local HOV=self._hoverTime/self._hoverTimeMax
local x2=x+self.w
local rangeL,rangeR=self._rangeL,self._rangeR
local c=self.color
local fc=self.fillColor
local r,g,b=c[1],c[2],c[3]
local fr,fg,fb=fc[1],fc[2],fc[3]
gc_setColor(r,g,b,.5+HOV*.36)
-- Units
if not self._smooth and self._unit then
gc_setLineWidth(self.lineWidth)
for p=rangeL,rangeR,self._unit do
local X=x+(x2-x)*(p-rangeL)/self._rangeWidth
gc_line(X,y+7,X,y-7)
end
end
-- Axis
gc_setLineWidth(self.lineWidth*2)
gc_line(x,y,x2,y)
-- Block
local pos=clamp(self._pos,rangeL,rangeR)
local cx=x+(x2-x)*(pos-rangeL)/self._rangeWidth
local bx,by=cx-10-HOV*2,y-16-HOV*5
local bw,bh=20+HOV*4,32+HOV*10
gc_setColor((self._pos0<rangeL or self._pos0>rangeR) and COLOR.lR or self.fillColor)
gc_rectangle('fill',bx,by,bw,bh,self.cornerR)
-- Glow
if HOV>0 then
gc_setLineWidth(self.lineWidth*.5)
gc_setColor(r,g,b,HOV*.8)