On closing a document in headless mode, the
accessibility::AccessibleTreeNode::WindowEventListener will access a deleted
mrTreeNode member and crash; don't do anything in the listener if the
AccessibleTreeNode has been disposed.
#0 0x0000000000000000 in ?? ()
#1 0x00007f99842d6887 in accessibility::AccessibleTreeNode::UpdateStateSet (this=0x27a99f80) at sd/source/ui/accessibility/AccessibleTreeNode.cxx:285
#2 0x00007f99842d803e in accessibility::AccessibleTreeNode::WindowEventListener (this=0x27a99f80, pEvent=0x7f997fd64f40) at sd/source/ui/accessibility/AccessibleTreeNode.cxx:694
#3 0x00007f99842d7f3d in accessibility::AccessibleTreeNode::LinkStubWindowEventListener (pThis=0x27a99f80, pCaller=0x7f997fd64f40) at sd/source/ui/accessibility/AccessibleTreeNode.cxx:670
#4 0x00007f99b88a1442 in Link::Call (this=0x279f94e0, pCaller=0x7f997fd64f40) at solver/unxlngx6/inc/tools/link.hxx:140
#5 0x00007f99b88cdecf in VclEventListeners::Call (this=0x27a946f0, pEvent=0x7f997fd64f40) at vcl/source/app/vclevent.cxx:72
#6 0x00007f99b8d2e76e in Window::CallEventListeners (this=0x27a98280, nEvent=1009, pData=0x0) at vcl/source/window/window.cxx:5188
#7 0x00007f99b8d2e6cf in Window::ImplCallEventListeners (this=0x27a98280, nEvent=1009, pData=0x0) at vcl/source/window/window.cxx:5171
#8 0x00007f99b8d2df63 in Window::PreNotify (this=0x27a98280, rNEvt=...) at vcl/source/window/window.cxx:5037
#9 0x00007f99b8d4aa0c in ImplCallPreNotify (rEvt=...) at vcl/source/window/winproc.cxx:86
#10 0x00007f99b8d2910e in Window::ImplGrabFocus (this=0x2703d230, nFlags=0) at vcl/source/window/window.cxx:4033
#11 0x00007f99b8d3749f in Window::GrabFocus (this=0x2703d230) at vcl/source/window/window.cxx:7493
#12 0x00007f99b8d2b624 in Window::~Window (this=0x27a98280, __in_chrg=<optimized out>) at vcl/source/window/window.cxx:4493
#13 0x00007f99b88fa514 in Control::~Control (this=0x27a98280, __in_chrg=<optimized out>) at vcl/source/control/ctrl.cxx:88
#14 0x00007f99845521e4 in sd::toolpanel::ScrollPanel::~ScrollPanel (this=0x27a98280, __in_chrg=<optimized out>) at sd/source/ui/toolpanel/ScrollPanel.cxx:91
#15 0x00007f99845522e8 in sd::toolpanel::ScrollPanel::~ScrollPanel (this=0x27a98280, __in_chrg=<optimized out>) at sd/source/ui/toolpanel/ScrollPanel.cxx:112
#16 0x00007f9984565d76 in std::auto_ptr<sd::toolpanel::TreeNode>::reset (this=0x27a94970, __p=0x0)
...compared to where the mouse entered the slide thumbnail. This
seems to prevent a user annoyance when you very often used to hide
the slide, instead of just selecting it.
Round zoom values beginning with 50 to a multiple of 5, with 100 to one
of 10, with 500 to one of 50 and with 1000 to one of 100.
The step 100 is enforced to have one fixed point.
This regression was introduced in f215333002.
As stated in PageObjectPainter::PaintPageObject:
"The page object layouter is quite volatile."
The rest of usages of mpPageObjectLayouter looks sane, but who knows...
Zooming does now base on a geometric progression instead of an
arithmetic one.
Since the zoom factor is not only used in Draw but for all other
applications 1.2 seems like a good choice.
