var fonts = [ ];
this.compile(gfx, fonts);
+ fonts = []
stats.compile = Date.now();
FontLoader.bind(
var NORMAL_CLIP = {};
var EO_CLIP = {};
- // Used for tiling patterns
- var PAINT_TYPE_COLORED = 1, PAINT_TYPE_UNCOLORED = 2;
-
constructor.prototype = {
beginDrawing: function(mediaBox) {
var cw = this.ctx.canvas.width, ch = this.ctx.canvas.height;
var fillColor = this.current.fillColor;
if (fillColor.type === "Pattern") {
- this.ctx.fillStyle = fillColor.getPattern(ctx);
- ctx.fill();
- } else {
- ctx.fill();
+ ctx.fillStyle = fillColor.getPattern(ctx);
}
+ ctx.fill();
this.consumePath();
},
var cs = this.current.strokeColorSpace;
if (cs.name == 'Pattern') {
- this.ctx.strokeStyle = this.getPattern(cs, arguments);
+ // this.ctx.strokeStyle = this.getPattern(cs, arguments);
} else {
this.setStrokeColor.apply(this, arguments);
}
if (cs.name == 'Pattern') {
// wait until fill to actually get the pattern
- var pattern = Pattern.parse(cs, arguments, this.xref, this.res,
+ var pattern = Pattern.parse(arguments, cs, this.xref, this.res,
this.ctx);
this.current.fillColor = pattern;
this.current.fillColor.type = "Pattern";
this.setFillColor.apply(this, arguments);
}
},
- getPattern: function(cs, args) {
- },
getShadingPattern: function(pattern, dict) {
// TODO('store transform so it can be applied before every fill');
// return shading;
var shadingFill = Pattern.parseShading(shading, null, xref, res, ctx);
this.save();
- ctx.fillStyle = shadingFill.getPattern(ctx);
+ ctx.fillStyle = shadingFill.getPattern();
var inv = ctx.mozCurrentTransformInverse;
if (inv) {
this.restore();
},
- getShading: function(shading) {
- },
- getAxialShading: function(sh, cs) {
- },
- getRadialShading: function(sh, cs) {
- },
// Images
beginInlineImage: function() {
}
}
- if (!xref.fetchIfRef)
- console.log("blah");
cs = xref.fetchIfRef(cs);
if (IsName(cs)) {
},
};
- constructor.parse = function pattern_parse(cs, args, xref, res, ctx) {
+ constructor.parse = function pattern_parse(args, cs, xref, res, ctx) {
var length = args.length;
var patternName = args[length - 1];
var pattern = xref.fetchIfRef(patternRes.get(patternName.name));
var dict = IsStream(pattern) ? pattern.dict : pattern;
-
var typeNum = dict.get("PatternType");
-
- var matrix = dict.get('Matrix');
- var patMatrix = ctx.mozCurrentTransform;
- if (patMatrix) {
- if (matrix) {
- ctx.save();
- ctx.transform.apply(ctx, matrix);
- patMatrix = ctx.mozCurrentTransform;
- ctx.restore();
- }
- }
switch(typeNum) {
case 1:
color = base.getRgb(color);
}
- return new TilingPattern(pattern, dict, color);
+ return new TilingPattern(pattern, dict, color, xref, ctx);
break;
case 2:
- var shading = xref.fetchIfRef(pattern.get('Shading'));
- return Pattern.parseShading(shading, patMatrix, xref, res, ctx);
+ var shading = xref.fetchIfRef(dict.get('Shading'));
+ var matrix = dict.get('Matrix');
+ return Pattern.parseShading(shading, matrix, xref, res, ctx);
+ break;
default:
error('Unknown type of pattern');
}
};
- constructor.parseShading = function pattern_shading(shading, patMatrix,
+ constructor.parseShading = function pattern_shading(shading, matrix,
xref, res, ctx) {
var dict = IsStream(shading) ? shading.dict : shading;
-
- var bbox = dict.get('BBox');
- var bg = dict.get('Background');
-
- var cs = dict.get('ColorSpace', 'CS');
- cs = ColorSpace.parse(cs, xref, res);
-
var type = dict.get('ShadingType');
switch (type) {
case 2:
- return new AxialShading(dict, patMatrix, bbox, cs, bg, xref);
+ return new SimpleShading(dict, matrix, xref, res, ctx);
break;
case 3:
- return new RadialShading(dict, patMatrix, bbox, cs, bg, xref);
+ return new SimpleShading(dict, matrix, xref, res, ctx);
break;
default:
- return new DummyShading();
+ error('Unsupported shading');
}
}
return constructor;
})();
-var AxialShading = (function() {
- function constructor(dict, patternMatrix, bbox, cs, background, xref) {
- this.bbox = bbox;
- this.cs = cs;
- this.background = background;
- this.patternMatrix = patternMatrix;
-
+var SimpleShading = (function() {
+ function constructor(dict, matrix, xref, res, ctx) {
+ this.matrix = matrix;
+ var bbox = dict.get('BBox');
+ var background = dict.get('Background');
this.coordsArr = dict.get('Coords');
+ this.shadingType = dict.get('ShadingType');
- var t0 = 0.0, t1 = 1.0;
- if (dict.has('Domain')) {
- var domainArr = dict.get('Domain');
- t0 = domainArr[0], t1 = domainArr[1];
- }
-
- var extendStart = false, extendEnd = false;
- if (dict.has('Extend')) {
- var extendArr = dict.get('Extend');
- extendStart = extendArr[0], extendEnd = extendArr[1];
- TODO('Support extend');
- }
-
- this.extendStart = extendStart;
- this.extendEnd = extendEnd;
-
- var fnObj = dict.get('Function');
- fnObj = xref.fetchIfRef(fnObj);
- if (IsArray(fnObj))
- error('No support for array of functions');
- else if (!IsPDFFunction(fnObj))
- error('Invalid function');
- var fn = new PDFFunction(xref, fnObj);
-
- // 10 samples seems good enough for now, but probably won't work
- // if there are sharp color changes. Ideally, we would implement
- // the spec faithfully and add lossless optimizations.
- var step = (t1 - t0) / 10;
- var diff = t1 - t0;
-
- var colorStops = [];
- for (var i = t0; i <= t1; i += step) {
- var color = fn.func([i]);
- var rgbColor = this.makeCssRgb.apply(this, cs.getRgb(color));
- colorStops.push([(i - t0) / diff, rgbColor]);
- }
-
- this.colorStops = colorStops;
- };
-
- constructor.prototype = {
- getPattern: function(ctx) {
- var coordsArr = this.coordsArr;
- var x0 = coordsArr[0], y0 = coordsArr[1];
- var x1 = coordsArr[2], y1 = coordsArr[3];
-
- // if the browser supports getting the tranform matrix, convert
- // gradient coordinates from pattern space to current user space
- var patternMatrix = this.patternMatrix;
- if (patternMatrix) {
- var userMatrix = ctx.mozCurrentTransformInverse;
-
- var p = this.applyTransform(x0, y0, patternMatrix);
- p = this.applyTransform(p[0], p[1], userMatrix);
- x0 = p[0];
- y0 = p[1];
-
- var p = this.applyTransform(x1, y1, patternMatrix);
- p = this.applyTransform(p[0], p[1], userMatrix);
- x1 = p[0];
- y1 = p[1];
- }
-
- var colorStops = this.colorStops;
- var gradient =
- ctx.createLinearGradient(x0, y0, x1, y1);
- for (var i = 0, ii = colorStops.length; i < ii; ++i) {
- var c = colorStops[i];
- gradient.addColorStop(c[0], c[1]);
- }
- return gradient;
- },
- applyTransform: function(x0, y0, m) {
- var xt = x0 * m[0] + y0 * m[2] + m[4];
- var yt = x0 * m[1] + y0 * m[3] + m[5];
- return [xt, yt];
- },
- makeCssRgb: function(r, g, b) {
- var ri = (255 * r) | 0, gi = (255 * g) | 0, bi = (255 * b) | 0;
- return 'rgb(' + ri + ',' + gi + ',' + bi + ')';
- }
- };
- return constructor;
-})();
+ this.ctx = ctx;
+ this.curMatrix = ctx.mozCurrentTransform;
+ console.log(ctx.mozCurrentTransform);
-var RadialShading = (function() {
- function constructor(dict, patternMatrix, bbox, cs, background, xref) {
- this.bbox = bbox;
+ var cs = dict.get('ColorSpace', 'CS');
+ cs = ColorSpace.parse(cs, xref, res);
this.cs = cs;
- this.background = background;
- this.patternMatrix = patternMatrix;
-
- this.coordsArr = dict.get('Coords');
var t0 = 0.0, t1 = 1.0;
if (dict.has('Domain')) {
};
constructor.prototype = {
- getPattern: function(ctx) {
+ getPattern: function() {
var coordsArr = this.coordsArr;
- var x0 = coordsArr[0], y0 = coordsArr[1], r0 = coordsArr[2];
- var x1 = coordsArr[3], y1 = coordsArr[4], r1 = coordsArr[5];
+ var type = this.shadingType;
+ if (type == 2) {
+ var p0 = [coordsArr[0], coordsArr[1]];
+ var p1 = [coordsArr[2], coordsArr[3]];
+ } else if (type == 3) {
+ var p0 = [coordsArr[0], coordsArr[1]];
+ var p1 = [coordsArr[3], coordsArr[4]];
+ var r0 = coordsArr[2], r1 = coordsArr[5]
+ } else {
+ error()
+ }
+
+ var matrix = this.matrix;
+ if (matrix) {
+ p0 = this.applyTransform(p0, matrix);
+ p1 = this.applyTransform(p1, matrix);
+ }
// if the browser supports getting the tranform matrix, convert
// gradient coordinates from pattern space to current user space
- var patternMatrix = this.patternMatrix;
- if (patternMatrix) {
+ var curMatrix = this.curMatrix;
+ var ctx = this.ctx;
+ if (curMatrix) {
var userMatrix = ctx.mozCurrentTransformInverse;
+ console.log(p0 + ',' + p1);
+ console.log(curMatrix);
+ console.log(userMatrix);
- var p = this.applyTransform(x0, y0, patternMatrix);
- p = this.applyTransform(p[0], p[1], userMatrix);
- x0 = p[0];
- y0 = p[1];
+ p0 = this.applyTransform(p0, curMatrix);
+ p0 = this.applyTransform(p0, userMatrix);
+ console.log(p0);
- var p = this.applyTransform(x1, y1, patternMatrix);
- p = this.applyTransform(p[0], p[1], userMatrix);
- x1 = p[0];
- y1 = p[1];
+ p1 = this.applyTransform(p1, curMatrix);
+ p1 = this.applyTransform(p1, userMatrix);
+ console.log(p0 + ',' + p1);
}
var colorStops = this.colorStops;
- var gradient =
- ctx.createRadialGradient(x0, y0, r0, x1, y1, r1);
+ if (type == 2)
+ var grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
+ else if (type == 3)
+ var grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1);
+
for (var i = 0, ii = colorStops.length; i < ii; ++i) {
var c = colorStops[i];
- gradient.addColorStop(c[0], c[1]);
+ grad.addColorStop(c[0], c[1]);
}
- return gradient;
+ return grad;
},
- applyTransform: function(x0, y0, m) {
- var xt = x0 * m[0] + y0 * m[2] + m[4];
- var yt = x0 * m[1] + y0 * m[3] + m[5];
+ applyTransform: function(p, m) {
+ var xt = p[0] * m[0] + p[1] * m[2] + m[4];
+ var yt = p[0] * m[1] + p[1] * m[3] + m[5];
return [xt, yt];
},
makeCssRgb: function(r, g, b) {
return 'rgb(' + ri + ',' + gi + ',' + bi + ')';
}
};
-
return constructor;
})();
var TilingPattern = (function() {
- function constructor(tiling) {
+ var PAINT_TYPE_COLORED = 1, PAINT_TYPE_UNCOLORED = 2;
+
+ function constructor(pattern, dict, color, patMatrix, xref, ctx) {
function multiply(m, tm) {
var a = m[0] * tm[0] + m[1] * tm[2];
var b = m[0] * tm[1] + m[1] * tm[3];
return [a, b, c, d, e, f];
};
- this.save();
- var ctx = this.ctx;
-
TODO('TilingType');
- var matrix = dict.get('Matrix') || IDENTITY_MATRIX;
+ this.patMatrix = patMatrix;
var bbox = dict.get('BBox');
var x0 = bbox[0], y0 = bbox[1], x1 = bbox[2], y1 = bbox[3];
var xstep = dict.get('XStep');
var ystep = dict.get('YStep');
- // top left corner should correspond to the top left of the bbox
- var topLeft = this.applyTransform(x0, y0, matrix);
+ var topLeft = [x0, y0];
// we want the canvas to be as large as the step size
- var botRight = this.applyTransform(x0 + xstep, y0 + ystep, matrix);
+ var botRight = [x0 + xstep, y0 + ystep]
var width = botRight[0] - topLeft[0];
var height = botRight[1] - topLeft[1];
// TODO: hack to avoid OOM, remove then pattern code is fixed
- if (Math.abs(width) > 8192 || Math.abs(height) > 8192) {
- this.restore();
- return 'hotpink';
+ while (Math.abs(width) > 8192 || Math.abs(height) > 8192) {
+ width /= 2;
+ height /= 2;
}
- var tmpCanvas = new this.ScratchCanvas(width, height);
+ var tmpCanvas = new ScratchCanvas(width, height);
// set the new canvas element context as the graphics context
var tmpCtx = tmpCanvas.getContext('2d');
- var savedCtx = ctx;
- this.ctx = tmpCtx;
+ var graphics = new CanvasGraphics(tmpCtx);
var paintType = dict.get('PaintType');
switch (paintType) {
case PAINT_TYPE_COLORED:
- tmpCtx.fillStyle = savedCtx.fillStyle;
- tmpCtx.strokeStyle = savedCtx.strokeStyle;
+ tmpCtx.fillStyle = ctx.fillStyle;
+ tmpCtx.strokeStyle = ctx.strokeStyle;
break;
case PAINT_TYPE_UNCOLORED:
color = this.makeCssRgb.apply(this, color);
error('Unsupported paint type');
}
- // normalize transform matrix so each step
- // takes up the entire tmpCanvas (need to remove white borders)
- if (matrix[1] === 0 && matrix[2] === 0) {
- matrix[0] = tmpCanvas.width / xstep;
- matrix[3] = tmpCanvas.height / ystep;
- topLeft = this.applyTransform(x0, y0, matrix);
- }
-
- // move the top left corner of bounding box to [0,0]
- matrix = multiply(matrix, [1, 0, 0, 1, -topLeft[0], -topLeft[1]]);
-
- this.transform.apply(this, matrix);
+ // transform coordinates to pattern space
+ var tmpTransform = [width / xstep, 0, 0, height / ystep, -topLeft[0], -topLeft[1]];
+ graphics.transform.apply(graphics, matrix);
if (bbox && IsArray(bbox) && 4 == bbox.length) {
- this.rectangle.apply(this, bbox);
- this.clip();
- this.endPath();
+ graphics.rectangle.apply(graphics, bbox);
+ graphics.clip();
+ graphics.endPath();
}
- var xref = this.xref;
var res = xref.fetchIfRef(dict.get('Resources'));
if (!pattern.code)
- pattern.code = this.compile(pattern, xref, res, []);
- this.execute(pattern.code, xref, res);
-
- this.ctx = savedCtx;
- this.restore();
+ pattern.code = graphics.compile(pattern, xref, res, []);
+ graphics.execute(pattern.code, xref, res);
- return this.ctx.createPattern(tmpCanvas, 'repeat');
+ this.canvas = tmpCanvas;
};
constructor.prototype = {
+ getPattern: function tiling_getPattern(ctx) {
+ var patternMatrix = this.patternMatrix;
+ if (patternMatrix) {
+ var userMatrix = ctx.mozCurrentTransformInverse;
+
+ var p = this.applyTransform(x0, y0, patternMatrix);
+ p = this.applyTransform(p[0], p[1], userMatrix);
+ x0 = p[0];
+ y0 = p[1];
+
+ var p = this.applyTransform(x1, y1, patternMatrix);
+ p = this.applyTransform(p[0], p[1], userMatrix);
+ x1 = p[0];
+ y1 = p[1];
+ }
+
+ var colorStops = this.colorStops;
+ var gradient =
+ ctx.createRadialGradient(x0, y0, r0, x1, y1, r1);
+ for (var i = 0, ii = colorStops.length; i < ii; ++i)
+ var c = colorStops[i];
+ ctx.transform.apply
+ return ctx.createPattern(this.canvas, 'repeat');
+ },
+ applyTransform: function(x0, y0, m) {
+ var xt = x0 * m[0] + y0 * m[2] + m[4];
+ var yt = x0 * m[1] + y0 * m[3] + m[5];
+ return [xt, yt];
+ },
+ makeCssRgb: function(r, g, b) {
+ var ri = (255 * r) | 0, gi = (255 * g) | 0, bi = (255 * b) | 0;
+ return 'rgb(' + ri + ',' + gi + ',' + bi + ')';
+ }
};
return constructor;
})();
projects / pdf.js.git / commitdiff