Sakurai/pdf.js
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added comments

Browse Source
This commit is contained in:
sbarman 2011-06-16 12:03:50 -07:00
parent d720575392
commit 72919470a9
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
pdf.js
View File

@ -2134,6 +2134,10 @@ var CanvasGraphics = (function() {
fn = new PDFFunction(this.xref, fnObj);
var gradient = this.ctx.createLinearGradient(x0, y0, x1, y1);
// 10 samples seems good enough for now, but probably won't work
// if there are sharp color changes. Ideally, we could see the
// current image size and base the # samples on that.
var step = (t1 - t0) / 10;
for (var i = t0; i <= t1; i += step) {
@ -2146,6 +2150,8 @@ var CanvasGraphics = (function() {
// 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
// Also, larger numbers seem to cause overflow which causes
// nothing to be drawn.
this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10);
},