Coloured Ichimoku Cloud 7,22,44,22

//Created By User George Stewart
//Last Update 01/03/2015
//new Updates include Cloud Color Change based on Trend.based on Trend
//Added ability to turn on/off Tenkan-Sen (7 Period), Kinjun-Sen (22 Period), Chinkou Span (Lagging Line), and "Cloud"
//Correct Plot Names for Alerts
study(title="Coloured Ichimoku Cloud 7,22,44,22", shorttitle="Coloured Ichimoku Cloud", overlay=true)
turningPeriods = input(7, minval=1, title="Tenkan-Sen")
standardPeriods = input(22, minval=1, title="Kinjun-Sen")
leadingSpan2Periods = input(44, minval=1, title="Senkou Span B")
displacement = input(22, minval=1, title="-ChinkouSpan/+SenkouSpan A")
sts = input(true, title="Show Tenkan-Sen (7 Period)?")
sks = input(true, title="Show Kinjun-Sen (22 Period)?")
sll = input(true, title="Show Chinkou Span (Lagging Line)?")
sc = input(true, title="Show Cloud?")
cr1 = input(false, title="Show Crosses up/down Tenkan-Sen (7 Period) and Kinjun-Sen (22 Period?")

//Definitions for Tenkan-Sen (7 Period), Kinjun-Sen (22 Period), Chinkou Span (Lagging Line)
donchian(len) => avg(lowest(len), highest(len))
turning = donchian(turningPeriods)
standard = donchian(standardPeriods)
leadingSpan1 = avg(turning, standard)
leadingSpan2 = donchian(leadingSpan2Periods)

//Crosses up/down Tenkan-Sen (7 Period) and Kinjun-Sen (22 Period)
crossUpTenkanKinjun = turning[1] < standard[1] and turning > standard ? 1 : 0
crossDnTenkanKinjun = turning[1] > standard[1] and turning < standard ? 1 : 0
cupA = crossUpTenkanKinjun == 1 ? crossUpTenkanKinjun : 0
cdnB = crossDnTenkanKinjun == 1 ? crossDnTenkanKinjun : 0

//First Definition for Ability to Color Cloud based on Trend.
leadingSpan1Above = leadingSpan1 >= leadingSpan2 ? 1 : na
leadingSpan2Below = leadingSpan1 <= leadingSpan2 ? 1 : na
//Next 4 lines are code used as plots in order to Color Cloud based on Trend
span1plotU = leadingSpan1Above ? leadingSpan1 : na
span2plotU = leadingSpan1Above ? leadingSpan2 : na

span1plotD = leadingSpan2Below ? leadingSpan1 : na
span2plotD = leadingSpan2Below ? leadingSpan2 : na

col = leadingSpan1 >= leadingSpan2 ? aqua : orange

//plots for 3 lines other than cloud.
plot(sts and turning ? turning : na, title = 'Tenkan-Sen (7 Period)', linewidth=2, color=red)
plot(sks and standard ? standard : na, title = 'Kinjun-Sen (22 Period)', linewidth=2, color=navy)
plot(sll and close ? close : na, title='Chinkou Span (Lagging Line)', linewidth=2, offset = -displacement, color=yellow)
//Cloud Lines Plot Statements - ***Regular Lines to Fill in Break in Gap
plot(sc and leadingSpan1 ? leadingSpan1 : na, title = 'Senkou Span A (22 Period) Cloud', style=line, linewidth=1, offset = displacement, color=col)
plot(sc and leadingSpan2 ? leadingSpan2 : na, title = 'Senkou Span B (44 Period) Cloud', style=line, linewidth=1, offset = displacement, color=col)
//Cloud Lines Plot Statements - ***linebr to create rules for change in Shading
p1 = plot(sc and span1plotU ? span1plotU  : na, title = 'Senkou Span A (22 Period) Above Span B Cloud', style=linebr, linewidth=1, offset = displacement, color=col)
p2 = plot(sc and span2plotU ? span2plotU  : na, title = 'Senkou Span B (44 Period) Below Span A Cloud', style=linebr, linewidth=1, offset = displacement, color=col)
p3 = plot(sc and span1plotD ? span1plotD  : na, title = 'Senkou Span A (22 Period) Below Span B Cloud', style=linebr, linewidth=1, offset = displacement, color=col)
p4 = plot(sc and span2plotD ? span2plotD  : na, title = 'Senkou Span B (44 Period) Above Span A Cloud', style=linebr, linewidth=1, offset = displacement, color=col)
//Fills that color cloud based on Trend.
fill(p1, p2, color=aqua, transp=70, title='Kumo (Cloud)')
fill(p3, p4, color=orange, transp=70, title='Kumo (Cloud)')