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Separate page objects/images from the fonts; does not store large images

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This commit is contained in:
Yury Delendik 2012-10-28 15:10:34 -05:00
parent d2c1868497
commit 69b72078c0
7 changed files with 97 additions and 73 deletions
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14
src/evaluator.js
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@ -18,12 +18,13 @@
'use strict';
var PartialEvaluator = (function PartialEvaluatorClosure() {
function PartialEvaluator(xref, handler, uniquePrefix) {
function PartialEvaluator(xref, handler, pageIndex, uniquePrefix) {
this.state = new EvalState();
this.stateStack = [];
this.xref = xref;
this.handler = handler;
this.pageIndex = pageIndex;
this.uniquePrefix = uniquePrefix;
this.objIdCounter = 0;
this.fontIdCounter = 0;
@ -151,7 +152,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
if (!isDict(font)) {
return {
translated: new ErrorFont('Font ' + fontName + ' is not available'),
loadedName: 'font_' + this.uniquePrefix + this.fontIdCounter
loadedName: 'g_font_' + this.uniquePrefix + this.fontIdCounter
};
}
@ -159,7 +160,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
if (!loadedName) {
// keep track of each font we translated so the caller can
// load them asynchronously before calling display on a page
loadedName = 'font_' + this.uniquePrefix + this.fontIdCounter;
loadedName = 'g_font_' + this.uniquePrefix + this.fontIdCounter;
font.loadedName = loadedName;
var translated;
@ -197,6 +198,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
var self = this;
var xref = this.xref;
var handler = this.handler;
var pageIndex = this.pageIndex;
var uniquePrefix = this.uniquePrefix || '';
function insertDependency(depList) {
@ -217,7 +219,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
if (!font.sent) {
var data = font.translated.exportData();
handler.send('obj', [
handler.send('commonobj', [
loadedName,
'Font',
data
@ -271,7 +273,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
image.isNativelySupported(xref, resources)) {
// These JPEGs don't need any more processing so we can just send it.
fn = 'paintJpegXObject';
handler.send('obj', [objId, 'JpegStream', image.getIR()]);
handler.send('obj', [objId, pageIndex, 'JpegStream', image.getIR()]);
return;
}
@ -287,7 +289,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
};
var pixels = imgData.data;
imageObj.fillRgbaBuffer(pixels, drawWidth, drawHeight);
handler.send('obj', [objId, 'Image', imgData]);
handler.send('obj', [objId, pageIndex, 'Image', imgData]);
}, handler, xref, resources, image, inline);
}