Class: Reight::Button

Inherits:
Object
  • Object
show all
Includes:
Activatable, HasHelp, Hookable
Defined in:
lib/reight/button.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from HasHelp

#help, #set_help

Methods included from Hookable

#hook

Methods included from Activatable

#activated, #activated!, #active=, #active?

Constructor Details

#initialize(name: nil, icon: nil, label: nil, &clicked) ⇒ Button

Returns a new instance of Button.



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# File 'lib/reight/button.rb', line 10

def initialize(name: nil, icon: nil, label: nil, &clicked)
  raise if icon && label
  @name, @icon, @label = name, icon, label
  super()

  hook :clicked
  self.clicked(&clicked) if clicked
  self.clicked {r8.flash name}
end

Instance Attribute Details

#icon ⇒ Object

Returns the value of attribute icon.



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# File 'lib/reight/button.rb', line 20

def icon
  @icon
end

#label ⇒ Object

Returns the value of attribute label.



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# File 'lib/reight/button.rb', line 20

def label
  @label
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/reight/button.rb', line 20

def name
  @name
end

Instance Method Details

#click ⇒ Object 



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# File 'lib/reight/button.rb', line 67

def click() = clicked! self

#disabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/reight/button.rb', line 74

def disabled? = !enabled?

#disabled_icon ⇒ Object 



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# File 'lib/reight/button.rb', line 86

def disabled_icon()
  @disabled_icon ||= createGraphics(@icon.width, @icon.height).tap do |g|
    g.beginDraw {g.image @icon, 0, 0}
    g.load_pixels
    g.pixels.map! {|c| alpha(c) > 0 ? color(180) : c}
    g.update_pixels
  end
end

#draw ⇒ Object 



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# File 'lib/reight/button.rb', line 22

def draw()
  sp = sprite
  no_stroke

  if @label
    fill 210
    rect 0, pressing? ? 1 : 0, sp.w, sp.h, 2
  end

  if active?
    fill 230
    rect 0, pressing? ? 1 : 0, sp.w, sp.h, 2
  end

  if @icon
    x  = (sp.w - @icon.width)  / 2
    y  = (sp.h - @icon.height) / 2
    y += 1 if pressing?
    image enabled? ? @icon : disabled_icon, x, y
  end

  if @label
    y = pressing? ? 1 : 0
    text_align CENTER, CENTER
    fill active? ? 250 : 230
    text @label, 0, y + 1, sp.w, sp.h
    fill active? ? 70  : 50
    text @label, 0, y,     sp.w, sp.h
  end
end

#enabled?(&block) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/reight/button.rb', line 69

def enabled?(&block)
  @enabled_block = block if block
  @enabled_block ? @enabled_block.call : true
end

#hover(x, y) ⇒ Object 



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# File 'lib/reight/button.rb', line 63

def hover(x, y)
  r8.flash help, priority: 0.5
end

#pressed(x, y) ⇒ Object 



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# File 'lib/reight/button.rb', line 53

def pressed(x, y)
  @pressing = true if enabled?
end

#pressing? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/reight/button.rb', line 61

def pressing? = @pressing

#released(x, y) ⇒ Object 



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# File 'lib/reight/button.rb', line 57

def released(x, y)
  @pressing = false
end

#sprite ⇒ Object 



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# File 'lib/reight/button.rb', line 76

def sprite()
  @sprite ||= RubySketch::Sprite.new(physics: false).tap do |sp|
    sp.draw           {draw}
    sp.mouse_pressed  {pressed  sp.mouse_x, sp.mouse_y}
    sp.mouse_released {released sp.mouse_x, sp.mouse_y}
    sp.mouse_moved    {hover    sp.mouse_x, sp.mouse_y}
    sp.mouse_clicked  {clicked! self if enabled?}
  end
end