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Merge pull request #1009 from notmasteryet/issue-1001

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Fix stitching function; media box fix
This commit is contained in:
Brendan Dahl 2011-12-30 18:25:19 -08:00
commit 78f7354dc7
5 changed files with 17 additions and 6 deletions
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2
src/canvas.js
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@ -255,6 +255,8 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
}
// Scale so that canvas units are the same as PDF user space units
this.ctx.scale(cw / mediaBox.width, ch / mediaBox.height);
// Move the media left-top corner to the (0,0) canvas position
this.ctx.translate(-mediaBox.x, -mediaBox.y);
this.textDivs = [];
this.textLayerQueue = [];
},

6
src/core.js
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@ -110,9 +110,11 @@ var Page = (function PageClosure() {
width: this.width,
height: this.height
};
var mediaBox = this.mediaBox;
var offsetX = mediaBox[0], offsetY = mediaBox[1];
if (isArray(obj) && obj.length == 4) {
var tl = this.rotatePoint(obj[0], obj[1]);
var br = this.rotatePoint(obj[2], obj[3]);
var tl = this.rotatePoint(obj[0] - offsetX, obj[1] - offsetY);
var br = this.rotatePoint(obj[2] - offsetX, obj[3] - offsetY);
view.x = Math.min(tl.x, br.x);
view.y = Math.min(tl.y, br.y);
view.width = Math.abs(tl.x - br.x);

7
src/function.js
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@ -270,7 +270,6 @@ var PDFFunction = (function PDFFunctionClosure() {
constructStiched: function pdfFunctionConstructStiched(fn, dict, xref) {
var domain = dict.get('Domain');
var range = dict.get('Range');
if (!domain)
error('No domain');
@ -279,13 +278,13 @@ var PDFFunction = (function PDFFunctionClosure() {
if (inputSize != 1)
error('Bad domain for stiched function');
var fnRefs = dict.get('Functions');
var fnRefs = xref.fetchIfRef(dict.get('Functions'));
var fns = [];
for (var i = 0, ii = fnRefs.length; i < ii; ++i)
fns.push(PDFFunction.getIR(xref, xref.fetchIfRef(fnRefs[i])));
var bounds = dict.get('Bounds');
var encode = dict.get('Encode');
var bounds = xref.fetchIfRef(dict.get('Bounds'));
var encode = xref.fetchIfRef(dict.get('Encode'));
return [CONSTRUCT_STICHED, domain, bounds, encode, fns];
},