Class: Processing::Window

Inherits:
Reflex::Window
  • Object
show all
Defined in:
lib/processing/window.rb

Defined Under Namespace

Classes: Canvas, CanvasView

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(width = 500, height = 500, *args, **kwargs, &block) ⇒ Window

Returns a new instance of Window.



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# File 'lib/processing/window.rb', line 32

def initialize(width = 500, height = 500, *args, **kwargs, &block)
  Processing.instance_variable_set :@window, self

  @events      = []
  @error       = nil
  @auto_resize = true
  @canvas      = Canvas.new self
  @canvas_view = add CanvasView.new name: :canvas

  super(*args, size: [width, height], **kwargs, &block)
end

Instance Attribute Details

#after_draw ⇒ Object

Returns the value of attribute after_draw.



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# File 'lib/processing/window.rb', line 24

def after_draw
  @after_draw
end

#auto_resize ⇒ Object

Returns the value of attribute auto_resize.



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# File 'lib/processing/window.rb', line 30

def auto_resize
  @auto_resize
end

#before_draw ⇒ Object

Returns the value of attribute before_draw.



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# File 'lib/processing/window.rb', line 24

def before_draw
  @before_draw
end

#draw ⇒ Object

Returns the value of attribute draw.



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# File 'lib/processing/window.rb', line 24

def draw
  @draw
end

#key_down ⇒ Object

Returns the value of attribute key_down.



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# File 'lib/processing/window.rb', line 24

def key_down
  @key_down
end

#key_up ⇒ Object

Returns the value of attribute key_up.



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# File 'lib/processing/window.rb', line 24

def key_up
  @key_up
end

#motion ⇒ Object

Returns the value of attribute motion.



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# File 'lib/processing/window.rb', line 24

def motion
  @motion
end

#pointer_down ⇒ Object

Returns the value of attribute pointer_down.



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# File 'lib/processing/window.rb', line 24

def pointer_down
  @pointer_down
end

#pointer_drag ⇒ Object

Returns the value of attribute pointer_drag.



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# File 'lib/processing/window.rb', line 24

def pointer_drag
  @pointer_drag
end

#pointer_move ⇒ Object

Returns the value of attribute pointer_move.



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# File 'lib/processing/window.rb', line 24

def pointer_move
  @pointer_move
end

#pointer_up ⇒ Object

Returns the value of attribute pointer_up.



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# File 'lib/processing/window.rb', line 24

def pointer_up
  @pointer_up
end

#resize ⇒ Object

Returns the value of attribute resize.



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# File 'lib/processing/window.rb', line 24

def resize
  @resize
end

#setup ⇒ Object

Returns the value of attribute setup.



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# File 'lib/processing/window.rb', line 24

def setup
  @setup
end

#update ⇒ Object

Returns the value of attribute update.



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# File 'lib/processing/window.rb', line 24

def update
  @update
end

#update_canvas ⇒ Object

Returns the value of attribute update_canvas.



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# File 'lib/processing/window.rb', line 24

def update_canvas
  @update_canvas
end

Instance Method Details

#canvas_image ⇒ Object 



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# File 'lib/processing/window.rb', line 44

def canvas_image()
  @canvas.image
end

#canvas_painter ⇒ Object 



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# File 'lib/processing/window.rb', line 48

def canvas_painter()
  @canvas.painter
end

#event ⇒ Object 



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# File 'lib/processing/window.rb', line 56

def event()
  @events.last
end

#on_canvas_draw(e) ⇒ Object 



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# File 'lib/processing/window.rb', line 112

def on_canvas_draw(e)
  draw_canvas {call_block @draw, e} if @draw
  draw_screen e.painter
end

#on_canvas_pointer(e) ⇒ Object 



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# File 'lib/processing/window.rb', line 117

def on_canvas_pointer(e)
  block = case e.action
    when :down        then @pointer_down
    when :up, :cancel then @pointer_up
    when :move        then e.drag? ? @pointer_drag : @pointer_move
  end
  draw_canvas {call_block block, e} if block
end

#on_canvas_resize(e) ⇒ Object 



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# File 'lib/processing/window.rb', line 126

def on_canvas_resize(e)
  resize_canvas e.width, e.height if @auto_resize
  draw_canvas {call_block @resize, e} if @resize
end

#on_canvas_update(e) ⇒ Object 



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# File 'lib/processing/window.rb', line 107

def on_canvas_update(e)
  call_block @update, e
  @canvas_view.redraw
end

#on_change_pixel_density(pixel_density) ⇒ Object 



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# File 'lib/processing/window.rb', line 83

def on_change_pixel_density(pixel_density)
  resize_canvas width, height, window_pixel_density: pixel_density
end

#on_draw(e) ⇒ Object 



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# File 'lib/processing/window.rb', line 87

def on_draw(e)
  window_painter.pixel_density.tap do |pd|
    prev, @prev_pixel_density = @prev_pixel_density, pd
    on_change_pixel_density pd if prev && pd != prev
  end
  update_canvas_view
end

#on_key(e) ⇒ Object 



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# File 'lib/processing/window.rb', line 95

def on_key(e)
  block = case e.action
    when :down then @key_down
    when :up   then @key_up
  end
  draw_canvas {call_block block, e} if block
end

#on_motion(e) ⇒ Object 



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# File 'lib/processing/window.rb', line 103

def on_motion(e)
  draw_canvas {call_block @motion, e} if @motion
end

#on_resize(e) ⇒ Object 



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# File 'lib/processing/window.rb', line 79

def on_resize(e)
  on_canvas_resize e
end

#on_setup ⇒ Object 



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# File 'lib/processing/window.rb', line 75

def on_setup()
  call_block @setup, nil
end

#resize_canvas(width, height, pixel_density = nil, window_pixel_density: nil) ⇒ Object 



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# File 'lib/processing/window.rb', line 67

def resize_canvas(width, height, pixel_density = nil, window_pixel_density: nil)
  @pixel_density = pixel_density if pixel_density
  if @canvas.resize width, height, pixel_density || @pixel_density || window_pixel_density
    @update_canvas.call canvas_image, canvas_painter if @update_canvas
    size width, height
  end
end

#start(&block) ⇒ Object 



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# File 'lib/processing/window.rb', line 60

def start(&block)
  draw_canvas do
    block.call if block
    on_setup
  end
end

#window_painter ⇒ Object 



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# File 'lib/processing/window.rb', line 52

def window_painter()
  self.painter
end