Merge pull request #3798 from brendandahl/intersect-bbox

Intersect group bounding box with the current canvas dimensions.

src/display/canvas.js

@@ -1506,6 +1506,11 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
       var bounds = Util.getAxialAlignedBoundingBox(
                     group.bbox,
                     currentCtx.mozCurrentTransform);
+      // Clip the bounding box to the current canvas.
+      bounds = Util.intersect(bounds, [0,
+                                       0,
+                                       currentCtx.canvas.width,
+                                       currentCtx.canvas.height]);
       // Use ceil in case we're between sizes so we don't create canvas that is
       // too small and make the canvas at least 1x1 pixels.
       var drawnWidth = Math.max(Math.ceil(bounds[2] - bounds[0]), 1);

test/test_manifest.json

@@ -1018,6 +1018,13 @@
       "link": true,
       "type": "load"
     },
+    { "id": "bigboundingbox",
+      "file": "pdfs/bigboundingbox.pdf",
+      "md5": "e5c5e2cb80826d6ebf535413865270cd",
+      "rounds": 1,
+      "type": "eq",
+      "about": "When the bounding box for the xobject is transformed it creates a huge bounding box."
+    },
     {  "id": "issue2386",
       "file": "pdfs/issue2386.pdf",
       "md5": "7dc787639aa6765214e9ff5494d231ed",