Sakurai/pdf.js
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Make shadingFill IR form

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This commit is contained in:
Julian Viereck 2011-09-07 08:50:13 -07:00
parent 89167c0b40
commit a3baea5fcb
2 changed files with 135 additions and 12 deletions
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118
pdf.js
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@ -4334,13 +4334,26 @@ var PartialEvaluator = (function() {
args = [ ColorSpace.parseRaw(args[0], xref, resources) ];
break;
case "shadingFill":
var shadingRes = xref.fetchIfRef(res.get('Shading'));
if (!shadingRes)
error('No shading resource found');
var shading = xref.fetchIfRef(shadingRes.get(args[0].name));
if (!shading)
error('No shading object found');
var shadingFill = Pattern.parseShading(shading, null, xref, res, /* ctx */ null);
var patternRaw = shadingFill.getPatternRaw();
args = [ patternRaw ];
fn = "shadingFillRaw";
break;
}
var skips = [];
var skips = [ "setFillColorN" ];//[ "paintReadyFormXObject" ];
//var skips = ["setFillColorSpace", "setFillColor", "setStrokeColorSpace", "setStrokeColor"];
if (skips.indexOf(fn) != -1) {
@ -5335,6 +5348,43 @@ var CanvasGraphics = (function() {
this.restore();
},
shadingFillRaw: function(patternRaw) {
var ctx = this.ctx;
this.save();
ctx.fillStyle = Pattern.shadingFromRaw(ctx, patternRaw);
var inv = ctx.mozCurrentTransformInverse;
if (inv) {
var canvas = ctx.canvas;
var width = canvas.width;
var height = canvas.height;
var bl = Util.applyTransform([0, 0], inv);
var br = Util.applyTransform([0, width], inv);
var ul = Util.applyTransform([height, 0], inv);
var ur = Util.applyTransform([height, width], inv);
var x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
var y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
var x1 = Math.max(bl[0], br[0], ul[0], ur[0]);
var y1 = Math.max(bl[1], br[1], ul[1], ur[1]);
this.ctx.fillRect(x0, y0, x1 - x0, y1 - y0);
} else {
// HACK to draw the gradient onto an infinite rectangle.
// PDF gradients are drawn across the entire image while
// Canvas only allows gradients to be drawn in a rectangle
// The following bug should allow us to remove this.
// https://bugzilla.mozilla.org/show_bug.cgi?id=664884
this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10);
}
this.restore();
},
// Images
beginInlineImage: function() {
error('Should not call beginInlineImage');
@ -5684,7 +5734,7 @@ var ColorSpace = (function() {
return new DeviceRgbCS();
case "DeviceCmykCS":
return new DeviceCmykCS();
case "Pattern":
case "PatternCS":
return new PatternCS(raw[1]);
default:
error("Unkown name " + name);
@ -6042,6 +6092,12 @@ var Pattern = (function() {
}
};
constructor.shadingFromRaw = function(ctx, raw) {
var obj = window[raw[0]];
return obj.fromRaw(ctx, raw);
}
constructor.parse = function pattern_parse(args, cs, xref, res, ctx) {
var length = args.length;
@ -6122,7 +6178,6 @@ var RadialAxialShading = (function() {
this.type = 'Pattern';
this.ctx = ctx;
this.curMatrix = ctx.mozCurrentTransform;
var cs = dict.get('ColorSpace', 'CS');
cs = ColorSpace.parse(cs, xref, res);
@ -6170,6 +6225,35 @@ var RadialAxialShading = (function() {
this.colorStops = colorStops;
}
constructor.fromRaw = function(ctx, raw) {
var type = raw[1];
var colorStops = raw[2];
var p0 = raw[3];
var p1 = raw[4];
var r0 = raw[5];
if (ctx.mozCurrentTransform) {
var userMatrix = ctx.mozCurrentTransformInverse;
p0 = Util.applyTransform(p0, curMatrix);
p0 = Util.applyTransform(p0, userMatrix);
p1 = Util.applyTransform(p1, curMatrix);
p1 = Util.applyTransform(p1, userMatrix);
}
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];
grad.addColorStop(c[0], c[1]);
}
return grad;
}
constructor.prototype = {
getPattern: function() {
var coordsArr = this.coordsArr;
@ -6195,9 +6279,8 @@ var RadialAxialShading = (function() {
// if the browser supports getting the tranform matrix, convert
// gradient coordinates from pattern space to current user space
var curMatrix = this.curMatrix;
var ctx = this.ctx;
if (curMatrix) {
if (ctx.mozCurrentTransform) {
var userMatrix = ctx.mozCurrentTransformInverse;
p0 = Util.applyTransform(p0, curMatrix);
@ -6218,8 +6301,33 @@ var RadialAxialShading = (function() {
grad.addColorStop(c[0], c[1]);
}
return grad;
},
getPatternRaw: function() {
var coordsArr = this.coordsArr;
var type = this.shadingType;
if (type == 2) {
var p0 = [coordsArr[0], coordsArr[1]];
var p1 = [coordsArr[2], coordsArr[3]];
var r0 = null;
} 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 = Util.applyTransform(p0, matrix);
p1 = Util.applyTransform(p1, matrix);
}
return [ "RadialAxialShading", type, this.colorStops, p0, p1, r0 ];
}
};
return constructor;
})();

29
worker/boot.js
View File

@ -53,16 +53,31 @@ var handler = new MessageHandler("worker", {
console.log("about to send page", pageNum);
if (true /* show used commands */) {
// Make a copy of the fnArray and show all cmds it has.
var fnArray = preCompilation.fnArray.slice(0).sort();
for (var i = 0; i < fnArray.length; true) {
if (fnArray[i] == fnArray[i + 1]) {
fnArray.splice(i, 1);
var cmdMap = {};
var fnArray = preCompilation.fnArray;
for (var i = 0; i < fnArray.length; i++) {
var entry = fnArray[i];
if (entry == "paintReadyFormXObject") {
//console.log(preCompilation.argsArray[i]);
}
if (cmdMap[entry] == null) {
cmdMap[entry] = 1;
} else {
i++;
cmdMap[entry] += 1;
}
}
console.log("cmds", fnArray);
// // Make a copy of the fnArray and show all cmds it has.
// var fnArray = preCompilation.fnArray.slice(0).sort();
// for (var i = 0; i < fnArray.length; true) {
// if (fnArray[i] == fnArray[i + 1]) {
// fnArray.splice(i, 1);
// } else {
// i++;
// }
// }
console.log("cmds", JSON.stringify(cmdMap));
}
handler.send("page", {