389769 - Full zooming doesn't work well with SVG

Status: VERIFIED FIXED

(Core :: Layout, defect)

Description

[Robert O'Callahan (:roc) (email my personal email if necessary)]

Visit the URL. Now try to zoom. It doesn't. (Which is too bad, because it would be a great way to show off SVG!)

Comment 1

[Eli Friedman]

This is probably the same bug as the SVG dpi scaling one.

Comment 3

[Brian Polidoro]

(In reply to comment #1)
> This is probably the same bug as the SVG dpi scaling one.
> 
I looked it up: Bug 370006.

Comment 4

[Steffen Wilberg]

Install http://ted.mielczarek.org/code/mozilla/fullpagezoom.xpi or evaluate
this in Firefox's error console to zoom:
top.window.opener.getBrowser().markupDocumentViewer.fullZoom = 1.5

Open http://de.wikipedia.org/wiki/Bild:Svg.svg and zoom in. Note that the svg
image gets larger, but instead of being redrawn at the higher resolution, it
looks like zooming in a bitmap image, with zigzag lines.

Now open just the svg image itself:
http://upload.wikimedia.org/wikipedia/commons/1/15/Svg.svg
Zooming only affects the text "SVG" (zooming in makes it larger).

Most other examples like http://www.croczilla.com/svg/samples/tiger/tiger.svg
doesn't react at all to zooming.

But this one actually gets smaller when zooming in:
http://upload.wikimedia.org/wikipedia/de/e/e2/SVG-Logo.svg

Comment 5

[Jonathan Haas]

(In reply to comment #4)
> Open http://de.wikipedia.org/wiki/Bild:Svg.svg and zoom in. Note that the svg
> image gets larger, but instead of being redrawn at the higher resolution, it
> looks like zooming in a bitmap image, with zigzag lines.

You _are_ zooming in a bitmap image. The image on the description page is a png.

> Most other examples like http://www.croczilla.com/svg/samples/tiger/tiger.svg
> doesn't react at all to zooming.

If you zoom out enough they get cut off at the bottom and right edge.

> But this one actually gets smaller when zooming in:
> http://upload.wikimedia.org/wikipedia/de/e/e2/SVG-Logo.svg

This is very strage.

Comment 6

[sendmail.to]

(In reply to comment #5)

> > But this one actually gets smaller when zooming in:
> > http://upload.wikimedia.org/wikipedia/de/e/e2/SVG-Logo.svg
> 
> This is very strage.
> 

I see this Bug also when using Demo from this Blog 
http://blog.vlad1.com/archives/2007/07/28/149/

Maybe we should file a new Bug, because this one is about fully broken zooming

Reduced testcase for getting smaller when zooming in:

<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" id="canvas">

  <rect id="background-rect" x="0%" y="0%" width="100%" height="100%" fill="#aaaaaa"/>

</svg>

Comment 7

[Eli Friedman]

Please hold off on filing more bugs about this until Bug 370006 gets fixed.

Comment 8

[Charles]

I can't zoom it either: http://upload.wikimedia.org/wikipedia/commons/9/9d/European_Union_member_states_with_applications.svg

Comment 9

[Jonathan Watt [:jwatt]]

Tim's fix for bug 370006 seems to have fixed this.

Comment 10

[Gábor Stefanik]

Yes, RESOLVED FIXED. http://upload.wikimedia.org/wikipedia/de/e/e2/SVG-Logo.svg is still showing problems, though. (It doesn't zoom, instead it moves towards the bottom-right corner.) Looks like percentage-sized SVGs cause problems.

Comment 11

[Charles]

I'm using the latest build and when I zoom in (Ctrl-+) or zoom out (Ctrl--) the SVG image size doesn't change, however it moves from left to right or vice versa.

Comment 12

[Marcia Knous [:marcia]]

https://litmus.mozilla.org/show_test.cgi?id=5203 has been added to Litmus. Also verifying this bug - this works for me using  Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9b5pre) Gecko/2008031404 Minefield/3.0b5pre and on the Win XP nightly.