Class: ISDRgbaSliderView

Inherits:
UIView
  • Object
show all
Defined in:
lib/isd-color-palette/view/isd_rgba_slider_view.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#color_value ⇒ Object

Returns the value of attribute color_value.



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 9

def color_value
  @color_value
end

#identity ⇒ Object

Returns the value of attribute identity.



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 10

def identity
  @identity
end

#idLabel ⇒ Object

IBOutlet UILabel



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 7

def idLabel
  @idLabel
end

#slider ⇒ Object (readonly)

Returns the value of attribute slider.



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 12

def slider
  @slider
end

#sliderBaseView ⇒ Object

IBOutlet UIView



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 5

def sliderBaseView
  @sliderBaseView
end

#valueTextField ⇒ Object

IBOutlet UITextField



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 6

def valueTextField
  @valueTextField
end

#viewController ⇒ Object

IBOutlet UIViewController



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 4

def viewController
  @viewController
end

Instance Method Details

#awakeFromNib ⇒ Object

def initWithCorder decode

  super
  self
end



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 28

def awakeFromNib

  l = self.layer
  l.borderColor = :white.uicolor.cgcolor
  l.borderWidth = 3
  l.cornerRadius = 4

  # setup slider
  
  @slider = UISlider.new
  @slider.frame = CGRectInset sliderBaseView.bounds, 0, 8
  rad = -90 * Math::PI / 180
  @slider.transform = CGAffineTransformMakeRotation(rad)
  sliderBaseView << @slider

  @slider.addTarget self, action:"didChangeValue:", forControlEvents:UIControlEventValueChanged

end

#color=(color) ⇒ Object 



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 55

def color= color
  @color = color
  @color_value = 0
  if color
    case self.identity
    when "R"
      @color_value = color.red
    when "G"
      @color_value = color.green
    when "B"
      @color_value = color.blue
    when "A"
      @color_value = color.alpha
    end
    set_color_value_to_controls
    set_backgournd_color
  end
end

#didChangeValue(sender) ⇒ Object

def shouldAutorotateToInterfaceOrientation interfaceOrientation

  interfaceOrientation == UIInterfaceOrientationPortrait
end



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 87

def didChangeValue sender # IBAction
  case sender
  when UISlider
    @color_value = sender.value
  when UITextField
    @color_value = sender.text.to_f / 255.0
  end
  set_color_value_to_controls
  self.viewController.didChangeColor sender
end

#hide_keyboard(textField = self.valueTextField) ⇒ Object 



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 131

def hide_keyboard textField = self.valueTextField
  textField.resignFirstResponder if textField
end

#layoutSubviews ⇒ Object 



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 47

def layoutSubviews
  super
  return unless self.slider
  
  self.slider.frame = CGRectInset self.sliderBaseView.bounds, 0, 8
end

#set_backgournd_color ⇒ Object 



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 103

def set_backgournd_color
  case self.identity
  when "R"
    bg_color = :red.uicolor
  when "G"
    bg_color = :green.uicolor
  when "B"
    bg_color = :blue.uicolor
  when "A"
    bg_color = :white.uicolor
  end
  self.backgroundColor = :black.uicolor.mix_with bg_color, self.color_value
  self.idLabel.textColor = UIColor.colorWithWhite(self.color_value, alpha:1.0).invert if self.idLabel
end

#set_color_value_to_controls ⇒ Object 



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 98

def set_color_value_to_controls
  self.valueTextField.text = [(self.color_value * 255 + 0.5), 255.0].min.to_i.to_s
  self.slider.value = self.color_value
end

#textFieldDidEndEditing(textField) ⇒ Object

UITextField delegate



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 119

def textFieldDidEndEditing(textField)
  if /^\s*\d+\s*$/ =~ textField.text
    @color_value = [textField.text.to_i, 255].min / 255.0
  end
  didChangeValue self
end

#textFieldShouldReturn(textField) ⇒ Object 



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# File 'lib/isd-color-palette/view/isd_rgba_slider_view.rb', line 126

def textFieldShouldReturn(textField)
  hide_keyboard textField
  true
end