trunk: EMF/WMF import via command line crashes (rev >= 12662)

[su_v]

Steps to reproduce:
Open a EMF or WMF file via command line (opening it via GUI from within Inkscape works ok):

$ inkscape picsize.wmf

Sample file used for attached backtrace:
<https://bugs.launchpad.net/inkscape/+bug/1241783/+attachment/3890417/+files/picsize.wmf>

Other files tested (with same crash):
<https://bugs.launchpad.net/inkscape/+bug/988601/+attachment/3540872/+files/test_libuemf_ref.wmf>
<https://bugs.launchpad.net/inkscape/+bug/988601/+attachment/3417867/+files/test_libuemf.emf>

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000058
0x00000001000ac269 in SPDocument::getHeight (this=0x0) at document.cpp:607
607 g_return_val_if_fail(this->priv != NULL, Inkscape::Util::Quantity(0.0, unit_table.getUnit("")));

Confirmed with r12726 on OS X 10.7.5.

Based on tests with archived builds:
- not reproduced with rev <= 12661,
- reproduced with rev >= 12662,
this regression was introduced with the fix for bug #1229120 in revision 12662:
<http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/revision/12662>

[jazzynico (jazzynico)]

Reproduced on Crunchbang Waldorf (Debian stable), Inkscape trunk revision 12727. Same backtrace.

[Johan Engelen (johanengelen)]

check if my 3second fix works, the code was weird there.
r12728

[Johan Engelen (johanengelen)]

btw, backtrace was awesome as always ~suv

[su_v (suv-lp)]

> check if my 3second fix works, the code was weird there.

Not really:
1) EMF import from the command line still crashes
2) WMF import:
- via command line: works as expected (no crash, drawing content correctly positioned inside the page area)
- via 'File > Open' or 'File > Open Recent' from within Inkscape: drawing content is vertically offset by an arbitrary value (possibly depending on the page height (?) of the document displayed in the current document window).

[Johan Engelen (johanengelen)]

crash should be gone in r12732

[su_v (suv-lp)]

Johan wrote:
> crash should be gone in r12732

Crash fix confirmed for EMF/WMF with r12734 on OS X 10.7.5

Remaining issue (introduced with crash fix for both formats):
- drawing content is incorrectly positioned (vertically shifted relative to the page height) when file type is opened from within Inkscape.

[su_v (suv-lp)]

> Remaining issue (introduced with crash fix for both formats):

Tracked in new report
- Bug #1250250 “WMF open on linux misplaces drawing”
  <https://bugs.launchpad.net/inkscape/+bug/1250250>