Skip to main content

module salix::canvas::Canvas

rascal-0.40.17
salix-contrib-0.2.7

Usage​

import salix::canvas::Canvas;

Source code​

http://github.com/usethesource/salix-contrib/src/main/rascal/salix/canvas/Canvas.rsc

Dependencies​

import salix::HTML;
import salix::Node;
import salix::Core;
import List;
import String;
import Node;

data PredefinedColorSpace​

data PredefinedColorSpace  
     = srgb()
     | \display-p3()
     ;

data CanvasFillRule​

data CanvasFillRule  
     = nonzero()
     | evenodd()
     ;

data CanvasRenderingContext2DSettings​

data CanvasRenderingContext2DSettings  
     = ctxSettings(
  bool alpha = true,
  bool desynchronized = false,
  PredefinedColorSpace colorSpace = srgb(),
  bool willReadFrequently = false
)
     ;

alias Path2D​

list[Move]

data Move​

data Move (bool r=false) 
     = move(num x, num y)
     | line(num x, num y)
     | horizontal(num x)
     | vertical(num y)
     | cubic(num x1, num y1, num x2, num y2, num x, num y)
     | cubic(num x2, num y2, num x, num y)
     | quadratic(num x1, num y1, num x, num y)
     | quadratic(num x, num y)
     | arc(num rx, num ry, num xrot, num large, num sweep, num x, num y)
     | close()
     ;

function lowerIfRel​

str lowerIfRel(Move m, str s)

function move2svg​

str move2svg(m:move(num x, num y))

str move2svg(m:line(num x, num y))

str move2svg(m:horizontal(num x))

str move2svg(m:vertical(num y))

str move2svg(m:cubic(num x1, num y1, num x2, num y2, num x, num y))

str move2svg(m:cubic(num x2, num y2, num x, num y))

str move2svg(m:quadratic(num x1, num y1, num x, num y))

str move2svg(m:quadratic(num x, num y))

str move2svg(m:arc(num rx, num ry, num xrot, num large, num sweep, num x, num y))

str move2svg(m:close())

function path2dAsSVG​

str path2dAsSVG(Path2D p)

data ImageSmoothingQuality​

data ImageSmoothingQuality  
     = low()
     | medium()
     | high()
     ;

data CanvasLineCap​

data CanvasLineCap  
     = butt()
     | round()
     | square()
     ;

data CanvasLineJoin​

data CanvasLineJoin  
     = round()
     | bevel()
     | miter()
     ;

data CanvasTextAlign​

data CanvasTextAlign  
     = \start()
     | end()
     | left()
     | right()
     | center()
     ;

data CanvasTextBaseline​

data CanvasTextBaseline  
     = top()
     | hanging()
     | middle()
     | alphabetic()
     | ideographic()
     | bottom()
     ;

data CanvasDirection​

data CanvasDirection  
     = ltr()
     | rtl()
     | inherit()
     ;

data CanvasFontKerning​

data CanvasFontKerning  
     = auto()
     | normal()
     | none()
     ;

data CanvasFontStretch​

data CanvasFontStretch  
     = \ultra-condensed()
     | \extra-condensed()
     | condensed()
     | \semi-condensed()
     | normal()
     | \semi-expanded()
     | expanded()
     | \extra-expanded()
     | \ultra-expanded()
     ;

data CanvasFontVariantCaps​

data CanvasFontVariantCaps  
     = normal()
     | \small-caps()
     | \all-small-caps()
     | \petite-caps()
     | \all-petite-caps()
     | unicase()
     | \titling-caps()
     ;

data CanvasTextRendering​

data CanvasTextRendering  
     = auto()
     | optimizeSpeed()
     | optimizeLegibility()
     | geometricPrecision()
     ;

alias GC​

tuple[     void(num /* x */, num /* y */) scale,     void(num /* angle */) rotate,     void(num /* x */, num /* y */) translate,     void(num /* a */, num /* b */, num /* c */, num /* d */, num /* e */, num /* f */) transform,     void(num /* x */, num /* y */, num /* w */, num /* h */) clearRect,     void(num /* x */, num /* y */, num /* w */, num /* h */) fillRect,     void(num /* x */, num /* y */, num /* w */, num /* h */) strokeRect,      void() beginPath,     void(CanvasFillRule /* fillRule */) fill,     void(Path2D /* path */, CanvasFillRule /* fillRule */) fillPath,     void() stroke,     void(Path2D /* path */) strokePath,     void(CanvasFillRule /* fillRule */) clip,     void(Path2D /* path */, CanvasFillRule /* fillRule */) clipPath,      void(str /* text */, num /* x */, num /* y */, num /* maxWidth */) fillText,     void(str /* text */, num /* x */, num /* y */, num /* maxWidth */) strokeText,      void(str /* image */, num /* dx */, num /* dy */) drawImage1,     void(str /* image */, num /* dx */, num /* dy */, num /* dw */, num /* dh */) drawImage2,     void(str /* image */, num /* sx */, num /* sy */, num /* sw */, num /* sh */, num /* dx */, num /* dy */, num /* dw */, num /* dh */) drawImage3,      void() closePath,     void(num /* x */, num /* y */) moveTo,     void(num /* x */, num /* y */) lineTo,     void(num /* cpx */, num /* cpy */, num /* x */, num /* y */) quadraticCurveTo,     void(num /* cp1x */, num /* cp1y */, num /* cp2x */, num /* cp2y */, num /* x */, num /* y */) bezierCurveTo,     void(num /* x1 */, num /* y1 */, num /* x2 */, num /* y2 */, num /* radius */) arcTo,      void(num /* x */, num /* y */, num /* w */, num /* h */) rect,     void(num /* x */, num /* y */, num /* w */, num /* h */, list[num] /* radii */) roundRect,     void(num /* x */, num /* y */, num /* radius */, num /* startAngle */, num /* endAngle */, bool /* counterclockwise */) arc,      void(num /* x */, num /* y */, num /* radiusX */, num /* radiusY */, num /* rotation */, num /* startAngle */, num /* endAngle */, bool /* counterclockwise */) ellipse,        // Attributes     void(num) globalAlpha, // (default 1.0)     void(str) globalCompositeOperation, // (default "source-over")     void(bool) imageSmoothingEnabled, // (default true)     void(ImageSmoothingQuality) imageSmoothingQuality, // (default low)     void(str) strokeStyle, // (default black)     void(str) fillStyle, // (default black)     void(num) shadowOffsetX, // (default 0)     void(num) shadowOffsetY, // (default 0)     void(num) shadowBlur, // (default 0)     void(str) shadowColor, // (default transparent black)     void(str) \filter, // (default "none")     void(num) lineWidth, // (default 1)     void(CanvasLineCap) lineCap, // (default "butt")     void(CanvasLineJoin) lineJoin, // (default "miter")     void(num) miterLimit, // (default 10)     void (list[num] segments) setLineDash, // default empty     void(num) lineDashOffset,     void(str) font, // (default 10px sans-serif)     void(CanvasTextAlign) textAlign, // (default: "start")     void(CanvasTextBaseline) textBaseline, // (default: "alphabetic")     void(CanvasDirection) direction, // (default: "inherit")     void(str) letterSpacing, // (default: "0px")     void(CanvasFontKerning) fontKerning, // (default: "auto")     void(CanvasFontStretch) fontStretch, // (default: "normal")     void(CanvasFontVariantCaps) fontVariantCaps, // (default: "normal")     void(CanvasTextRendering) textRendering, // (default: "auto")     void(str) wordSpacing, // (default: "0px")      void() save,     void() restore ]

function initCode​

str initCode(str name)

function myCanvas​

void myCanvas(str name, int w, int h, list[Attr] attrs, void(GC) block)