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Flattern the IRQueue to make it easier to reexecute and have no nested state

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This commit is contained in:
Julian Viereck 2011-09-07 17:55:44 -07:00
parent 443bb84cd6
commit e7b636dba4
1 changed files with 28 additions and 13 deletions
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41
pdf.js
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@ -3420,7 +3420,8 @@ var Page = (function() {
}
var pe = this.pe = new PartialEvaluator();
return this.IRQueue = pe.getIRQueue(content, xref, resources, fonts, images, this.pageNumber + "_");
var IRQueue = {};
return this.IRQueue = pe.getIRQueue(content, xref, resources, IRQueue, fonts, images, this.pageNumber + "_");
},
ensureFonts: function(fonts, callback) {
@ -4185,14 +4186,22 @@ var PartialEvaluator = (function() {
};
constructor.prototype = {
getIRQueue: function(stream, xref, resources, fonts, images, uniquePrefix) {
getIRQueue: function(stream, xref, resources, queue, fonts, images, uniquePrefix) {
uniquePrefix = uniquePrefix || "";
if (!queue.argsArray) {
queue.argsArray = []
}
if (!queue.fnArray) {
queue.fnArray = [];
}
var fnArray = queue.fnArray, argsArray = queue.argsArray;
resources = xref.fetchIfRef(resources) || new Dict();
var xobjs = xref.fetchIfRef(resources.get('XObject')) || new Dict();
var patterns = xref.fetchIfRef(resources.get('Pattern')) || new Dict();
var parser = new Parser(new Lexer(stream), false);
var args = [], argsArray = [], fnArray = [], obj;
var args = [], obj;
var res = resources;
while (!IsEOF(obj = parser.getObj())) {
@ -4217,9 +4226,10 @@ var PartialEvaluator = (function() {
// Type1 is TilingPattern
if (typeNum == 1) {
// TODO: Add dependency here.
// Create an IR of the pattern code.
var codeIR = this.getIRQueue(pattern, xref,
dict.get('Resources'), fonts, images, uniquePrefix);
dict.get('Resources'), {}, fonts, images, uniquePrefix);
args = TilingPattern.getIR(codeIR, dict);
}
@ -4249,13 +4259,19 @@ var PartialEvaluator = (function() {
);
if ('Form' == type.name) {
// console.log("got xobj that is a Form");
var raw = this.getIRQueue(xobj, xref, xobj.dict.get('Resources'),
fonts, images, uniquePrefix);
var matrix = xobj.dict.get('Matrix');
var bbox = xobj.dict.get('BBox');
args = [ raw, matrix, bbox ];
fn = "paintFormXObject";
fnArray.push("paintFormXObjectBegin");
argsArray.push([ matrix, bbox ]);
// This adds the IRQueue of the xObj to the current queue.
this.getIRQueue(xobj, xref, xobj.dict.get('Resources'), queue,
fonts, images, uniquePrefix);
fn = "paintFormXObjectEnd";
args = [];
} else if ('Image' == type.name) {
var image = xobj;
var dict = image.dict;
@ -5333,7 +5349,7 @@ var CanvasGraphics = (function() {
this.paintImageXObject(null, image, true);
},
paintFormXObject: function(IRQueue, matrix, bbox) {
paintFormXObjectBegin: function(matrix, bbox) {
this.save();
if (matrix && IsArray(matrix) && 6 == matrix.length)
@ -5344,10 +5360,9 @@ var CanvasGraphics = (function() {
this.clip();
this.endPath();
}
},
// this.execute(code, this.xref, stream.dict.get('Resources'));
this.executeIRQueue(IRQueue);
paintFormXObjectEnd: function() {
this.restore();
},