Draw FIBO lines

 Dear MQL4 programmers!

A need Indicator that I can choose and mark on chart 4 points (in  this order F0,F1,F2_A,F2_B) (coordinates  Price and date/time ) on Candlestick Chart and after draw 3 or 4 FIBO in colour. The end :-)

USER MENU has got  3 user buttons: 

a) Choice "Trade",  

- "F3" (DEFAULT)

- "F5" – do nothing

- "Correction" – do nothing

b) Choice "Trend":

- "downward "

- "upward " 

c) Function keys:

- delete all  points and FIBO

- delete 1point  (and remove FIBO)

- rename of point (and redraw FIBO)

  The program draw the points on chart below or above candlestick with this names  according to that algorithm, where H means High[] value L  - Low [] of bars

If  "Trend" is "downward trend" :

F0        ->         H,

F1        ->         L,

F2_A    ->         H,

F2_B    ->         L,

If  "Trend" is "upward trend" :

F0        ->         L,

F1        ->         H,

F2_A    ->         L,

F2_B    ->         H,

  When user mark all points mentioned above, the indicator program will draw 3 or 4 FIBO lines:

1)     If Trend is “ downward”  :

A)   Draw Blue Colour FIBO1:

-if             (F2_B >F1)

Size =  abs(F0-F1)

Position 0%:   F1

      100%:   F0

-if             F2_B < F1)

Size =          abs(F0-F2_B)

Position 0%:    F2_B

            100%:F0

B)    Draw RED Colour FIBO2:

Size =          abs(F2_A-F1)

Position 0%:    F2_B

            100%:F2_B+ abs(F2_A-F1)

C)   Draw GREEN Colour FIBO3:

Size =          abs(F2_A-F2_B)

Position 0%:    F2_B

            100%:F2_A

D)   Draw ORANGE Colour FIBO4:

-if             F2_B >F1

Don’t draw

-if              F2_B < F1

Size =              abs(F2_A-F2_B)

Position 0%:    F1

            100%:   F1 + abs(F2_A-F2_B)

2)    If Trend is “ upward”  :

A)   Draw Blue Colour FIBO1:

-if                    (F2_B < F1)

Size =              abs(F0-F1)

Position 0%:    F1

            100%:   F0

-if                    (F2_B > F1)

Size =              abs(F0-F2_B)

Position 0%:    F2_B

            100%:   F0

B)    Draw RED Colour FIBO2:

Size =              abs(F2_A-F1)

Position 0%:    F2_B

            100%:   F2_B - abs(F2_A-F1)

C)   ]Draw GREEN Colour FIBO3:

Size =              abs(F2_A-F2_B)

Position 0%:    F2_B

            100%:   F2_A

D)   Draw ORANGE Colour FIBO4:

-if                    F2_B < F1

Don’t draw

-if                    F2_B > F1

Size =              abs(F2_A-F2_B)

Position 0%:    F1

            100%:F1 - abs(F2_A-F2_B)

If some conditions block posibility drawing the program will get some information /alert about it eg. "I cant draw FIBO with this points".

I need source file of indicator as well  (*.mq4).

I am responsible for mystakes of conditions not you.  

See attachment - example screen of indicator.

It can be usefull that the value % of fibo doestn't overlaps each other. 

This is first phase of big program, first come first served with optimal price ;-).