Class: Processing::Context

Inherits:
Object
  • Object
show all
Includes:
GraphicsContext
Defined in:
lib/processing/context.rb

Overview

Processing context

Constant Summary collapse

Capture = 
Processing::Capture
Font = 
Processing::Font
Graphics = 
Processing::Graphics
Image = 
Processing::Image
Shader = 
Processing::Shader
TextBounds = 
Processing::TextBounds
Touch = 
Processing::Touch
Vector = 
Processing::Vector

Constants included from GraphicsContext

GraphicsContext::ADD, GraphicsContext::ALT, GraphicsContext::BACKSPACE, GraphicsContext::BASELINE, GraphicsContext::BLEND, GraphicsContext::BLUR, GraphicsContext::BOTTOM, GraphicsContext::CAPSLOCK, GraphicsContext::CENTER, GraphicsContext::CLEAR, GraphicsContext::COMMAND, GraphicsContext::CONTROL, GraphicsContext::CORNER, GraphicsContext::CORNERS, GraphicsContext::DARKEST, GraphicsContext::DEGREES, GraphicsContext::DELETE, GraphicsContext::DOWN, GraphicsContext::ENTER, GraphicsContext::ESC, GraphicsContext::EXCLUSION, GraphicsContext::F1, GraphicsContext::F10, GraphicsContext::F11, GraphicsContext::F12, GraphicsContext::F13, GraphicsContext::F14, GraphicsContext::F15, GraphicsContext::F16, GraphicsContext::F17, GraphicsContext::F18, GraphicsContext::F19, GraphicsContext::F2, GraphicsContext::F20, GraphicsContext::F21, GraphicsContext::F22, GraphicsContext::F23, GraphicsContext::F24, GraphicsContext::F3, GraphicsContext::F4, GraphicsContext::F5, GraphicsContext::F6, GraphicsContext::F7, GraphicsContext::F8, GraphicsContext::F9, GraphicsContext::FUNCTION, GraphicsContext::GRAY, GraphicsContext::HALF_PI, GraphicsContext::HELP, GraphicsContext::HOME, GraphicsContext::HSB, GraphicsContext::INVERT, GraphicsContext::LEFT, GraphicsContext::LIGHTEST, GraphicsContext::MITER, GraphicsContext::MULTIPLY, GraphicsContext::OPTION, GraphicsContext::PAGEDOWN, GraphicsContext::PAGEUP, GraphicsContext::PI, GraphicsContext::PROJECT, GraphicsContext::QUARTER_PI, GraphicsContext::RADIANS, GraphicsContext::RADIUS, GraphicsContext::REPLACE, GraphicsContext::RGB, GraphicsContext::RGBA, GraphicsContext::RIGHT, GraphicsContext::ROUND, GraphicsContext::SCREEN, GraphicsContext::SECTION, GraphicsContext::SHIFT, GraphicsContext::SPACE, GraphicsContext::SQUARE, GraphicsContext::SUBTRACT, GraphicsContext::TAB, GraphicsContext::TAU, GraphicsContext::THRESHOLD, GraphicsContext::TOP, GraphicsContext::TWO_PI, GraphicsContext::UP, GraphicsContext::WIN

Instance Method Summary collapse

Methods included from GraphicsContext

#abs, #acos, #angleMode, #arc, #asin, #atan, #atan2, #background, #bezier, #blend, #blendMode, #ceil, #circle, #clip, #colorMode, #constrain, #copy, #cos, #createCapture, #createGraphics, #createImage, #createShader, #createVector, #curve, #degrees, #dist, #ellipse, #ellipseMode, #exp, #fill, #filter, #floor, #height, #image, #imageMode, #lerp, #line, #loadImage, #loadShader, #log, #mag, #map, #max, #min, #noClip, #noFill, #noStroke, #noTint, #noise, #norm, #point, #pop, #popMatrix, #popStyle, #pow, #push, #pushMatrix, #pushStyle, #quad, #radians, #random, #rect, #rectMode, #resetMatrix, #resetShader, #rotate, #round, #save, #scale, #shader, #sin, #sq, #sqrt, #square, #stroke, #strokeCap, #strokeJoin, #strokeWeight, #tan, #text, #textAlign, #textAscent, #textDescent, #textFont, #textSize, #textWidth, #tint, #translate, #triangle, #width

Instance Method Details

#createCanvas(width, height, pixelDensity: self.pixelDensity) ⇒ nil

Changes canvas size.

Parameters:

  • width (Integer) —

    new width

  • height (Integer) —

    new height

  • pixelDensity (Numeric) (defaults to: self.pixelDensity) —

    new pixel density

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 312

def createCanvas(width, height, pixelDensity: self.pixelDensity)
  resizeCanvas__ :createCanvas, width, height, pixelDensity
  nil
end

#displayDensity ⇒ Numeric

Returns pixel density of display.

Returns:

  • (Numeric) —

    pixel density



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# File 'lib/processing/context.rb', line 354

def displayDensity()
  @window__.painter.pixel_density
end

#draw(&block) ⇒ nil

Defines draw block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 178

def draw(&block)
  @drawBlock__ = block if block
  nil
end

#frameCount ⇒ Integer

Returns number of frames since program started.

Returns:

  • (Integer) —

    total number of frames



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# File 'lib/processing/context.rb', line 378

def frameCount()
  @frameCount__
end

#frameRate ⇒ Float

Returns number of frames per second.

Returns:

  • (Float) —

    frames per second



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# File 'lib/processing/context.rb', line 386

def frameRate()
  @window__.event.fps
end

#key ⇒ String

Returns the last key that was pressed or released.

Returns:

  • (String) —

    last key



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# File 'lib/processing/context.rb', line 394

def key()
  @key__
end

#keyCode ⇒ Symbol

Returns the last key code that was pressed or released.

Returns:

  • (Symbol) —

    last key code



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# File 'lib/processing/context.rb', line 402

def keyCode()
  @keyCode__
end

#keyPressed(&block) ⇒ Boolean

Defines keyPressed block.

Returns:

  • (Boolean) —

    is any key pressed or not



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# File 'lib/processing/context.rb', line 187

def keyPressed(&block)
  @keyPressedBlock__ = block if block
  not @keysPressed__.empty?
end

#keyReleased(&block) ⇒ nil

Defines keyReleased block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 196

def keyReleased(&block)
  @keyReleasedBlock__ = block if block
  nil
end

#keyTyped(&block) ⇒ nil

Defines keyTyped block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 205

def keyTyped(&block)
  @keyTypedBlock__ = block if block
  nil
end

#loop ⇒ nil

Enables calling draw block on every frame.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 466

def loop()
  @loop__ = true
end

#motion(&block) ⇒ nil

Defines motion block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 286

def motion(&block)
  @motionBlock__ = block if block
  nil
end

#motionGravity ⇒ Vector

Returns vector for real world gravity

Returns:



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# File 'lib/processing/context.rb', line 458

def motionGravity()
  @motionGravity__
end

#mouseButton ⇒ Numeric

Returns which mouse button was pressed

Returns:

  • (Numeric) —

    LEFT, RIGHT, CENTER or 0



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# File 'lib/processing/context.rb', line 442

def mouseButton()
  (@pointersPressed__ & [LEFT, RIGHT, CENTER]).last || 0
end

#mouseClicked(&block) ⇒ nil

Defines mouseClicked block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 250

def mouseClicked(&block)
  @mouseClickedBlock__ = block if block
  nil
end

#mouseDragged(&block) ⇒ nil

Defines mouseDragged block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 241

def mouseDragged(&block)
  @mouseDraggedBlock__ = block if block
  nil
end

#mouseMoved(&block) ⇒ nil

Defines mouseMoved block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 232

def mouseMoved(&block)
  @mouseMovedBlock__ = block if block
  nil
end

#mousePressed(&block) ⇒ Boolean

Defines mousePressed block.

Returns:

  • (Boolean) —

    is any mouse button pressed or not



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# File 'lib/processing/context.rb', line 214

def mousePressed(&block)
  @mousePressedBlock__ = block if block
  not @pointersPressed__.empty?
end

#mouseReleased(&block) ⇒ nil

Defines mouseReleased block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 223

def mouseReleased(&block)
  @mouseReleasedBlock__ = block if block
  nil
end

#mouseX ⇒ Numeric

Returns mouse x position

Returns:

  • (Numeric) —

    horizontal position of mouse



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# File 'lib/processing/context.rb', line 410

def mouseX()
  @pointerPos__.x
end

#mouseY ⇒ Numeric

Returns mouse y position

Returns:

  • (Numeric) —

    vertical position of mouse



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# File 'lib/processing/context.rb', line 418

def mouseY()
  @pointerPos__.y
end

#noLoop ⇒ nil

Disables calling draw block on every frame.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 474

def noLoop()
  @loop__ = false
end

#pixelDensity(density = nil) ⇒ Numeric

Changes and returns canvas pixel density.

Parameters:

  • density (Numeric) (defaults to: nil) —

    new pixel density

Returns:

  • (Numeric) —

    current pixel density



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# File 'lib/processing/context.rb', line 334

def pixelDensity(density = nil)
  resizeCanvas__ :pixelDensity, width, height, density if density
  @painter__.pixel_density
end

#pmouseX ⇒ Numeric

Returns mouse x position in previous frame

Returns:

  • (Numeric) —

    horizontal position of mouse



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# File 'lib/processing/context.rb', line 426

def pmouseX()
  @pointerPrevPos__.x
end

#pmouseY ⇒ Numeric

Returns mouse y position in previous frame

Returns:

  • (Numeric) —

    vertical position of mouse



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# File 'lib/processing/context.rb', line 434

def pmouseY()
  @pointerPrevPos__.y
end

#redraw ⇒ nil

Calls draw block to redraw frame.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 482

def redraw()
  @redraw__ = true
end

#setTitle(title) ⇒ nil

Changes title of window.

Parameters:

  • title (String) —

    new title

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 323

def setTitle(title)
  @window__.title = title
  nil
end

#setup(&block) ⇒ nil

Defines setup block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 152

def setup(&block)
  @window__.setup = block
  nil
end

#size(width, height, pixelDensity: self.pixelDensity) ⇒ nil

Changes canvas size.

Parameters:

  • width (Integer) —

    new width

  • height (Integer) —

    new height

  • pixelDensity (Numeric) (defaults to: self.pixelDensity) —

    new pixel density

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 299

def size(width, height, pixelDensity: self.pixelDensity)
  resizeCanvas__ :size, width, height, pixelDensity
  nil
end

#touchEnded(&block) ⇒ nil

Defines touchEnded block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 268

def touchEnded(&block)
  @touchEndedBlock__ = block if block
  nil
end

#touches ⇒ Array

Returns array of touches

Returns:

  • (Array) —

    Touch objects



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# File 'lib/processing/context.rb', line 450

def touches()
  @touches__
end

#touchMoved(&block) ⇒ nil

Defines touchMoved block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 277

def touchMoved(&block)
  @touchMovedBlock__ = block if block
  nil
end

#touchStarted(&block) ⇒ nil

Defines touchStarted block.

Returns:

  • (nil) —

    nil



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# File 'lib/processing/context.rb', line 259

def touchStarted(&block)
  @touchStartedBlock__ = block if block
  nil
end

#windowHeight ⇒ Numeric

Returns window height.

Returns:

  • (Numeric) —

    window height



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# File 'lib/processing/context.rb', line 370

def windowHeight()
  @window__.height
end

#windowWidth ⇒ Numeric

Returns window width.

Returns:

  • (Numeric) —

    window width



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# File 'lib/processing/context.rb', line 362

def windowWidth()
  @window__.width
end