Class: Savio::ColorSlider

Inherits:
Object
  • Object
show all
Includes:
IORenderable
Defined in:
lib/savio/ColorSlider.rb

Constant Summary collapse

@@colorSliders = 
[]

Instance Attribute Summary collapse

Attributes included from IORenderable

#allowDrag, #displayName, #draggingEnabled, #duplicate, #enabled, #shown, #size, #x, #y, #z

Class Method Summary collapse

Instance Method Summary collapse

Methods included from IORenderable

#context, #drag, #dragType=, #endDrag, #kill, #rebuild

Constructor Details

#initialize(args = {}) ⇒ ColorSlider

Returns a new instance of ColorSlider.



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# File 'lib/savio/ColorSlider.rb', line 12

def initialize(args = {})
  args[:size] = args[:size] || 80
  super(args)
  @@colorSliders.push(self)

  @color = args[:color] || HsvColor.new(rand(0..360), rand(0.0..1.0),rand(0.0..1.0))
  @hue = @color[0]

  @baseColor = args[:baseColor] || Savio::Colors::White
  @knobColor = args[:baseColor] || Savio::Colors::Gray
  @textColor = args[:textColor] || Savio::Colors::Black
  @sectors = args[:sectors] || 64

  @optionsShown = false
  @steps = 0
  @animating = false

  @radiusStep = 0
  @yStep = 0

  build()
end

Instance Attribute Details

#animating ⇒ Object (readonly)

Returns the value of attribute animating.



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# File 'lib/savio/ColorSlider.rb', line 5

def animating
  @animating
end

#baseColor ⇒ Object

Returns the value of attribute baseColor.



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# File 'lib/savio/ColorSlider.rb', line 5

def baseColor
  @baseColor
end

#knobColor ⇒ Object

Returns the value of attribute knobColor.



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# File 'lib/savio/ColorSlider.rb', line 5

def knobColor
  @knobColor
end

#optionsShown ⇒ Object (readonly)

Returns the value of attribute optionsShown.



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# File 'lib/savio/ColorSlider.rb', line 5

def optionsShown
  @optionsShown
end

#sectors ⇒ Object (readonly)

Returns the value of attribute sectors.



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# File 'lib/savio/ColorSlider.rb', line 5

def sectors
  @sectors
end

#textColor ⇒ Object

Returns the value of attribute textColor.



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# File 'lib/savio/ColorSlider.rb', line 5

def textColor
  @textColor
end

Class Method Details

.colorSliders ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 8

def self.colorSliders
  @@colorSliders
end

Instance Method Details

#add ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 56

def add()
  super()
  @innerCircle.add
  @outerCircle.add
  @knob.add
  @saturationSlider.add
  @valueSlider.add
end

#animate ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 65

def animate()
  animatorThread = Thread.new do
    12.times do
      sleep(1 / 60)
      @steps += 1
      @innerCircle.radius += @radiusStep
      @innerCircle.y += @yStep
      if @steps >= 12
        @steps = 0
        @radiusStep = 0
        @yStep = 0
        @animating = false
      end
    end
  end
end

#build ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 156

def build()
  @shown = true

  @innerCircle = Circle.new(
    x: @x, y: @y,
    radius: @size * 0.95,
    color: 'black',
    z: @z + 4,
    sectors: @sectors
  )

  @outerCircle = Circle.new(
    x: @x, y: @y,
    radius: @size,
    color: @baseColor,
    z: @z,
    sectors: @sectors
  )

  @knob = Circle.new(
    x: @x + @size, y: @y,
    radius: @size * 0.15,
    color: @knobColor,
    z: @z + 5,
    sectors: @sectors
  )

  placement = chord(1.0)
  @saturationSlider = Slider.new(
    displayName: "Saturation",
    labelColor: @textColor,
    x:@x - @size + placement.adjust + placement.margin,
    y:@y - @size + placement.height,
    z:@z + 1,
    min:0.0,
    max:1.0,
    length:(placement.chord - placement.margin * 2),
    size: @size * 0.06,
    showValue: false
  )

  placement = chord(1.3)
  @valueSlider = Slider.new(
    displayName: "Value",
    labelColor: @textColor,
    x:@x - @size + placement.adjust + placement.margin,
    y:@y - @size + placement.height,
    z: @z + 1,
    min:0.0,
    max:1.0,
    length:(placement.chord - placement.margin * 2),
    size: @size * 0.06,
    showValue: false
  )
  @valueSlider.showValue=false
  @saturationSlider.showValue=false

  @valueSlider.onChange do
    setValue(@hue)
  end

  @saturationSlider.onChange do
    setValue(@hue)
  end

  setValue(@hue)
end

#calculateStep(desire, start, steps) ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 82

def calculateStep(desire, start, steps)
  delta = desire.to_f - start.to_f
  step = delta/steps
  return step
end

#chord(placement) ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 146

def chord(placement)
  margin = 20
  height = @size * placement
  angle = 2 * Math.acos( 1.0 - height / @size.to_f)
  angle = angle * 180/Math::PI
  chord = 2 * Math.sqrt(2 * @size * height - height**2)
  adjust = (@size * 2 - chord) / 2
  return Struct.new(:margin, :height, :angle, :chord, :adjust).new(margin,height,angle,chord,adjust)
end

#hex ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 141

def hex()
  rgb = RgbColor.newFromHSV(@color)
  return ("#%02x%02x%02x" % [rgb[0]*255,rgb[1]*255,rgb[2]*255])
end

#hideOptions ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 104

def hideOptions()
  if @optionsShown == true
    @optionsShown = false

    @steps = 0
    @radiusStep = 0
    @yStep = 0
    @animating = false

    @radiusStep = calculateStep(@size * 0.95, @innerCircle.radius, 12)
    @yStep = calculateStep(@y, @innerCircle.y, 12)
    @animating = true
    animate()
  end
end

#hsv ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 137

def hsv()
  return HsvColor.new(@color[0],@color[1],@color[2])
end

#remove ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 47

def remove()
  super()
  @innerCircle.remove
  @outerCircle.remove
  @knob.remove
  @saturationSlider.remove
  @valueSlider.remove
end

#rgb ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 133

def rgb()
  return RgbColor.newFromHSV(@color)
end

#setValue(angle) ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 120

def setValue(angle)
  @knob.x = (@size).to_f * Math.cos((angle.to_f % 360.0) * Math::PI/180.0) + @x.to_f
  @knob.y = (@size).to_f * Math.sin((angle.to_f % 360.0) * Math::PI/180.0) + @y.to_f

  @color = HsvColor.new(angle % 360, @saturationSlider.value, @valueSlider.value)
  @hue = @color[0]

  rgb = RgbColor.newFromHSV(@color)
  @innerCircle.color.r = rgb[0]
  @innerCircle.color.g = rgb[1]
  @innerCircle.color.b = rgb[2]
end

#showOptions ⇒ Object 



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# File 'lib/savio/ColorSlider.rb', line 88

def showOptions()
  if @optionsShown == false
    @optionsShown = true

    @steps = 0
    @radiusStep = 0
    @yStep = 0
    @animating = false

    @radiusStep = calculateStep(0.25 * @size, @innerCircle.radius, 12)
    @yStep = calculateStep(@y - @size + 0.35 * @size, @innerCircle.y, 12)
    @animating = true
    animate()
  end
end