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fix tiling colorspace

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sbarman 2011-07-08 17:35:25 -07:00
parent 2bb68cc062
commit 5820f4b151
1 changed files with 45 additions and 19 deletions
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64
pdf.js
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@ -4021,14 +4021,28 @@ var CanvasGraphics = (function() {
var cs = this.getFillColorSpace();
if (cs.name == 'Pattern') {
var patternName = arguments[0];
this.setFillPattern(patternName);
var length = arguments.length;
var base = cs.base;
if (base) {
var baseComps = base.numComps;
if (baseComps != length - 1)
error("invalid base color for pattern colorspace");
var color = [];
for (var i = 0; i < baseComps; ++i)
color.push(arguments[i]);
color = base.getRgb(color);
}
var patternName = arguments[length - 1];
this.setFillPattern(patternName, base, color);
} else {
// TODO real impl
this.setFillColor.apply(this, arguments);
}
},
setFillPattern: function(patternName) {
setFillPattern: function(patternName, baseCS, color) {
if (!IsName(patternName))
error("Bad args to getPattern");
@ -4046,7 +4060,7 @@ var CanvasGraphics = (function() {
var patternFn = types[typeNum];
if (!patternFn)
error("Unhandled pattern type");
patternFn.call(this, pattern, dict);
patternFn.call(this, pattern, dict, baseCS, color);
},
setShadingPattern: function(pattern, dict) {
var matrix = dict.get("Matrix");
@ -4069,7 +4083,7 @@ var CanvasGraphics = (function() {
this.ctx.fillRect(0,0,0,0);
this.transform.apply(this, inv);
},
setTilingPattern: function(pattern, dict) {
setTilingPattern: function(pattern, dict, baseCS, color) {
function multiply(m, tm) {
var a = m[0] * tm[0] + m[1] * tm[2];
var b = m[0] * tm[1] + m[1] * tm[3];
@ -4083,17 +4097,6 @@ var CanvasGraphics = (function() {
this.save();
var ctx = this.ctx;
var paintType = dict.get('PaintType');
switch (paintType) {
case PAINT_TYPE_COLORED:
// should go to default for color space
ctx.fillStyle = this.makeCssRgb(1, 1, 1);
ctx.strokeStyle = this.makeCssRgb(0, 0, 0);
break;
case PAINT_TYPE_UNCOLORED:
default:
error('Unsupported paint type');
}
TODO('TilingType');
@ -4124,6 +4127,21 @@ var CanvasGraphics = (function() {
var savedCtx = ctx;
this.ctx = tmpCtx;
var paintType = dict.get('PaintType');
switch (paintType) {
case PAINT_TYPE_COLORED:
// should go to default for color space
tmpCtx.fillStyle = this.makeCssRgb(1, 1, 1);
tmpCtx.strokeStyle = this.makeCssRgb(0, 0, 0);
break;
case PAINT_TYPE_UNCOLORED:
tmpCtx.fillStyle = this.makeCssRgb.apply(this, baseCS.getRgb(color));
tmpCtx.strokeStyle = this.makeCssRgb.apply(this, baseCS.getRgb(color));
break;
default:
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) {
@ -4247,8 +4265,12 @@ var CanvasGraphics = (function() {
var typeNum = shading.get('ShadingType');
var shadingFn = types[typeNum];
// Most likely we will not implement other types of shading
// unless the browser supports them
if (!shadingFn)
error("Unknown or NYI type of shading '"+ typeNum +"'");
TODO("Unknown or NYI type of shading '"+ typeNum +"'");
return shadingFn.call(this, shading, cs);
},
getAxialShading: function(sh, cs) {
@ -4626,7 +4648,10 @@ var ColorSpace = (function() {
return new DeviceCmykCS();
break;
case 'Pattern':
return new PatternCS();
var baseCS = cs[1];
if (baseCS)
baseCS = ColorSpace.parse(baseCS, xref, res);
return new PatternCS(baseCS);
break;
case 'Indexed':
var base = ColorSpace.parse(cs[1], xref, res);
@ -4692,8 +4717,9 @@ var SeparationCS = (function() {
})();
var PatternCS = (function() {
function constructor() {
function constructor(baseCS) {
this.name = 'Pattern';
this.base = baseCS;
}
constructor.prototype = {};