Sakurai/pdf.js
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Fixing multi-item page content

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notmasteryet 2011-08-23 21:07:48 -05:00
parent 5ec1f4d913
commit 7e6815ab82
1 changed files with 34 additions and 20 deletions
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54
pdf.js
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@ -289,6 +289,32 @@ var FakeStream = (function() {
return constructor; return constructor;
})(); })();
var StreamsSequenceStream = (function() {
function constructor(streams) {
this.streams = streams;
DecodeStream.call(this);
}
constructor.prototype = Object.create(DecodeStream.prototype);
constructor.prototype.readBlock = function() {
var streams = this.streams;
if (streams.length == 0) {
this.eof = true;
return;
}
var stream = streams.shift();
var chunk = stream.getBytes();
var bufferLength = this.bufferLength;
var newLength = bufferLength + chunk.length;
var buffer = this.ensureBuffer(newLength);
buffer.set(chunk, bufferLength);
this.bufferLength = newLength;
};
return constructor;
})();
var FlateStream = (function() { var FlateStream = (function() {
var codeLenCodeMap = new Uint32Array([ var codeLenCodeMap = new Uint32Array([
16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
@ -3312,28 +3338,16 @@ var Page = (function() {
} }
var xref = this.xref; var xref = this.xref;
var content; var content = xref.fetchIfRef(this.content);
var resources = xref.fetchIfRef(this.resources); var resources = xref.fetchIfRef(this.resources);
if (!IsArray(this.content)) { if (IsArray(this.content)) {
// content is not an array, shortcut // fetching items
content = xref.fetchIfRef(this.content); var i, n = content.length;
this.code = gfx.compile(content, xref, resources, fonts, images); for (i = 0; i < n; ++i)
return; content[i] = xref.fetchIfRef(this.content[i]);
content = new StreamsSequenceStream(content);
} }
// the content is an array, compiling all items this.code = gfx.compile(content, xref, resources, fonts, images);
var i, n = this.content.length, compiledItems = [];
for (i = 0; i < n; ++i) {
content = xref.fetchIfRef(this.content[i]);
compiledItems.push(gfx.compile(content, xref, resources, fonts,
images));
}
// creating the function that executes all compiled items
this.code = function(gfx) {
var i, n = compiledItems.length;
for (i = 0; i < n; ++i) {
compiledItems[i](gfx);
}
};
}, },
display: function(gfx) { display: function(gfx) {
assert(this.code instanceof Function, assert(this.code instanceof Function,