Class: CyberarmEngine::Element

Inherits:
Object
  • Object
show all
Includes:
Common, Event, Theme
Defined in:
lib/cyberarm_engine/ui/element.rb,
lib/cyberarm_engine/ui/elements/flow.rb,
lib/cyberarm_engine/ui/elements/image.rb,
lib/cyberarm_engine/ui/elements/label.rb,
lib/cyberarm_engine/ui/elements/stack.rb,
lib/cyberarm_engine/ui/elements/button.rb,
lib/cyberarm_engine/ui/elements/progress.rb,
lib/cyberarm_engine/ui/elements/check_box.rb,
lib/cyberarm_engine/ui/elements/container.rb,
lib/cyberarm_engine/ui/elements/edit_line.rb,
lib/cyberarm_engine/ui/elements/toggle_button.rb

Direct Known Subclasses

Container, Image, Label, Progress

Defined Under Namespace

Classes: Button, CheckBox, Container, EditLine, Flow, Image, Label, Progress, Stack, ToggleButton

Constant Summary

Constants included from Theme

Theme::THEME

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Common

#current_state, #darken, #draw_rect, #fill, #get_asset, #get_image, #get_sample, #get_song, #lighten, #opacity, #pop_state, #previous_state, #push_state, #show_cursor, #show_cursor=, #window

Methods included from Event

#event, #publish, #subscribe, #unsubscribe

Methods included from Theme

#deep_merge, #default, #theme_defaults

Constructor Details

#initialize(options = {}, block = nil) ⇒ Element

Returns a new instance of Element.



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# File 'lib/cyberarm_engine/ui/element.rb', line 10

def initialize(options = {}, block = nil)
  @parent = options.delete(:parent) # parent Container (i.e. flow/stack)
  options = theme_defaults(options)
  @options = options
  @block = block

  @focus   = false
  @enabled = true
  @visible = true

  @style = Style.new(options)

  @x = @style.x
  @y = @style.y
  @z = @style.z

  @width  = 0
  @height = 0

  @fixed_x = @x if @x != 0
  @fixed_y = @y if @y != 0

  @style.width  = default(:width)  || nil
  @style.height = default(:height) || nil

  @style.background_canvas = Background.new
  @style.border_canvas     = BorderCanvas.new(element: self)

  stylize

  default_events
end

Instance Attribute Details

#background_canvas ⇒ Object (readonly)

Returns the value of attribute background_canvas.



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# File 'lib/cyberarm_engine/ui/element.rb', line 8

def background_canvas
  @background_canvas
end

#border_canvas ⇒ Object (readonly)

Returns the value of attribute border_canvas.



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# File 'lib/cyberarm_engine/ui/element.rb', line 8

def border_canvas
  @border_canvas
end

#enabled ⇒ Object

Returns the value of attribute enabled.



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# File 'lib/cyberarm_engine/ui/element.rb', line 7

def enabled
  @enabled
end

#event_handler ⇒ Object (readonly)

Returns the value of attribute event_handler.



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# File 'lib/cyberarm_engine/ui/element.rb', line 8

def event_handler
  @event_handler
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/cyberarm_engine/ui/element.rb', line 8

def options
  @options
end

#parent ⇒ Object (readonly)

Returns the value of attribute parent.



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# File 'lib/cyberarm_engine/ui/element.rb', line 8

def parent
  @parent
end

#style ⇒ Object (readonly)

Returns the value of attribute style.



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# File 'lib/cyberarm_engine/ui/element.rb', line 8

def style
  @style
end

#x ⇒ Object

Returns the value of attribute x.



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# File 'lib/cyberarm_engine/ui/element.rb', line 7

def x
  @x
end

#y ⇒ Object

Returns the value of attribute y.



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# File 'lib/cyberarm_engine/ui/element.rb', line 7

def y
  @y
end

#z ⇒ Object

Returns the value of attribute z.



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# File 'lib/cyberarm_engine/ui/element.rb', line 7

def z
  @z
end

Instance Method Details

#background=(_background) ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 208

def background=(_background)
  @style.background_canvas.background=(_background)
  update_background
end

#button_down(id) ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 149

def button_down(id)
end

#button_up(id) ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 152

def button_up(id)
end

#default_events ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 97

def default_events
  [:left, :middle, :right].each do |button|
    event(:"#{button}_mouse_button")
    event(:"released_#{button}_mouse_button")
    event(:"clicked_#{button}_mouse_button")
    event(:"holding_#{button}_mouse_button")
  end

  event(:mouse_wheel_up)
  event(:mouse_wheel_down)

  event(:enter)
  event(:hover)
  event(:leave)

  event(:blur)
end

#draw ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 138

def draw
  return unless @visible

  @style.background_canvas.draw
  @style.border_canvas.draw
  render
end

#enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cyberarm_engine/ui/element.rb', line 115

def enabled?
  @enabled
end

#height ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 179

def height
  if visible?
    inner_height + @height
  else
    0
  end
end

#hide ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 133

def hide
  @visible = false
  root.gui_state.request_recalculate
end

#hit?(x, y) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cyberarm_engine/ui/element.rb', line 158

def hit?(x, y)
  x.between?(@x, @x + width) &&
  y.between?(@y, @y + height)
end

#inner_height ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 191

def inner_height
  (@style.border_thickness_top + @style.padding_top) + (@style.padding_bottom + @style.border_thickness_bottom)
end

#inner_width ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 175

def inner_width
  (@style.border_thickness_left + @style.padding_left) + (@style.padding_right + @style.border_thickness_right)
end

#is_root? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cyberarm_engine/ui/element.rb', line 241

def is_root?
  @gui_state != nil
end

#outer_height ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 187

def outer_height
  @style.margin_top + height + @style.margin_bottom
end

#outer_width ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 171

def outer_width
  @style.margin_left + width + @style.margin_right
end

#recalculate ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 245

def recalculate
  raise "#{self.class}#recalculate was not overridden!"
end

#render ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 155

def render
end

#reposition ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 249

def reposition
end

#root ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 225

def root
  unless @root && @root.parent.nil?
    @root = parent

    loop do
      if @root.parent.nil?
        break
      else
        @root = @root.parent
      end
    end
  end

  @root
end

#set_background(background) ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 54

def set_background(background)
  @style.background = background
  @style.background_canvas.background = background
end

#set_border_color(color) ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 68

def set_border_color(color)
  @style.border_color = color

  @style.border_color_left   = default(:border_color_left)   || @style.border_color
  @style.border_color_right  = default(:border_color_right)  || @style.border_color
  @style.border_color_top    = default(:border_color_top)    || @style.border_color
  @style.border_color_bottom = default(:border_color_bottom) || @style.border_color

  @style.border_canvas.color = color
end

#set_border_thickness(border_thickness) ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 59

def set_border_thickness(border_thickness)
  @style.border_thickness = border_thickness

  @style.border_thickness_left   = default(:border_thickness_left)   || @style.border_thickness
  @style.border_thickness_right  = default(:border_thickness_right)  || @style.border_thickness
  @style.border_thickness_top    = default(:border_thickness_top)    || @style.border_thickness
  @style.border_thickness_bottom = default(:border_thickness_bottom) || @style.border_thickness
end

#set_margin(margin) ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 88

def set_margin(margin)
  @style.margin = margin

  @style.margin_left   = default(:margin_left)   || @style.margin
  @style.margin_right  = default(:margin_right)  || @style.margin
  @style.margin_top    = default(:margin_top)    || @style.margin
  @style.margin_bottom = default(:margin_bottom) || @style.margin
end

#set_padding(padding) ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 79

def set_padding(padding)
  @style.padding = padding

  @style.padding_left   = default(:padding_left)   || @style.padding
  @style.padding_right  = default(:padding_right)  || @style.padding
  @style.padding_top    = default(:padding_top)    || @style.padding
  @style.padding_bottom = default(:padding_bottom) || @style.padding
end

#show ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 128

def show
  @visible = true
  root.gui_state.request_recalculate
end

#stylize ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 43

def stylize
  set_border_thickness(@style.border_thickness)

  set_padding(@style.padding)

  set_margin(@style.margin)

  set_background(@style.background)
  set_border_color(@style.border_color)
end

#toggle ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 123

def toggle
  @visible = !@visible
  root.gui_state.request_recalculate
end

#update ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 146

def update
end

#update_background ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 213

def update_background
  @style.background_canvas.x = @x
  @style.background_canvas.y = @y
  @style.background_canvas.z = @z
  @style.background_canvas.width  = width
  @style.background_canvas.height = height

  @style.background_canvas.update

  @style.border_canvas.update
end

#value ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 252

def value
  raise "#{self.class}#value was not overridden!"
end

#value=(value) ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 256

def value=(value)
  raise "#{self.class}#value= was not overridden!"
end

#visible? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cyberarm_engine/ui/element.rb', line 119

def visible?
  @visible
end

#width ⇒ Object 



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# File 'lib/cyberarm_engine/ui/element.rb', line 163

def width
  if visible?
    inner_width + @width
  else
    0
  end
end