Class: CDK::FSLIDER

Inherits:
SLIDER show all
Defined in:
lib/cdk/fslider.rb

Instance Attribute Summary

Attributes inherited from CDKOBJS

#BXAttr, #HZChar, #LLChar, #LRChar, #ULChar, #URChar, #VTChar, #accepts_focus, #binding_list, #border_size, #box, #exit_type, #has_focus, #is_visible, #screen, #screen_index

Instance Method Summary collapse

Methods inherited from SLIDER

Decrement, Increment, #activate, #destroy, #draw, #erase, #focus, #getHighValue, #getLowValue, #getValue, #inject, #limitCurrentValue, #move, #moveToEditPosition, #performEdit, #position, removeChar, #set, #setBKattr, #setEditPosition, #setLowHigh, #setValue, #unfocus, #validEditPosition

Methods inherited from CDKOBJS

#SCREEN_XPOS, #SCREEN_YPOS, #bind, #bindableObject, #checkBind, #cleanBindings, #cleanTitle, #destroy, #draw, #drawTitle, #erase, #focus, #getBox, #getc, #getch, #inject, #isBind, #move, #move_specific, #position, #refreshData, #saveData, #setBXattr, #setBackgroundColor, #setBox, #setExitType, #setHZchar, #setLLchar, #setLRchar, #setPostProcess, #setPreProcess, #setTitle, #setULchar, #setURchar, #setVTchar, #unbind, #unfocus, #validCDKObject, #validObjType

Constructor Details

#initialize(cdkscreen, xplace, yplace, title, label, filler, field_width, start, low, high, inc, fast_inc, digits, box, shadow) ⇒ FSLIDER

Returns a new instance of FSLIDER.



5
6
7
8
9
10
 
# File 'lib/cdk/fslider.rb', line 5

def initialize(cdkscreen, xplace, yplace, title, label, filler,
    field_width, start, low, high, inc, fast_inc, digits, box, shadow)
  @digits = digits
  super(cdkscreen, xplace, yplace, title, label, filler, field_width,
      start, low, high, inc, fast_inc, box, shadow)
end

Instance Method Details

#drawField ⇒ Object

This draws the widget.



13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 
# File 'lib/cdk/fslider.rb', line 13

def drawField
  step = 1.0 * @field_width / (@high - @low)

  # Determine how many filler characters need to be drawn.
  filler_characters = (@current - @low) * step

  @field_win.werase

  # Add the character to the window.
  (0...filler_characters).each do |x|
    @field_win.mvwaddch(0, x, @filler)
  end

  # Draw the value in the field.
  digits = [@digits, 30].min
  format = '%%.%if' % [digits]
  temp = format % [@current]

  Draw.writeCharAttrib(@field_win, @field_width, 0, temp,
      Ncurses::A_NORMAL, CDK::HORIZONTAL, 0, temp.size)

  self.moveToEditPosition(@field_edit)
  @field_win.wrefresh
end

#formattedSize(value) ⇒ Object 



38
39
40
41
42
43
 
# File 'lib/cdk/fslider.rb', line 38

def formattedSize(value)
  digits = [@digits, 30].min
  format = '%%.%if' % [digits]
  temp = format % [value]
  return temp.size
end

#getDigits ⇒ Object 



49
50
51
 
# File 'lib/cdk/fslider.rb', line 49

def getDigits
  return @digits
end

#object_type ⇒ Object 



57
58
59
 
# File 'lib/cdk/fslider.rb', line 57

def object_type
  :FSLIDER
end

#SCAN_FMT ⇒ Object 



53
54
55
 
# File 'lib/cdk/fslider.rb', line 53

def SCAN_FMT
  '%g%c'
end

#setDigits(digits) ⇒ Object 



45
46
47
 
# File 'lib/cdk/fslider.rb', line 45

def setDigits(digits)
  @digits = [0, digits].max
end