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<base href="https://bugs.documentfoundation.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - [EMF] RestoreDC shoud read and use 'SavedDC' value"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=142567">142567</a>
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<th>Summary</th>
<td>[EMF] RestoreDC shoud read and use 'SavedDC' value
</td>
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<th>Product</th>
<td>LibreOffice
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>UNCONFIRMED
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>graphics stack
</td>
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<th>Assignee</th>
<td>libreoffice-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>frob@df.ru
</td>
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<p>
<div>
<pre>Description:
[MS-EMF] 2.3.1.16 says:
"SavedDC (4 bytes): A signed integer that specifies the saved state to restore
relative to the current state. This value MUST be negative; –1 represents the
state that was most recently saved on the stack, –2 the one before that, etc."
LO simply pops the context once.
<a href="https://github.com/LibreOffice/core/blob/master/emfio/source/reader/emfreader.cxx#L1103:L1107">https://github.com/LibreOffice/core/blob/master/emfio/source/reader/emfreader.cxx#L1103:L1107</a>
Steps to Reproduce:
Open attached EMF sample.
Actual Results:
It shows empty object.
Expected Results:
It should show red rectangle.
Reproducible: Always
User Profile Reset: No
Additional Info:
The issue is isolated from <a class="bz_bug_link
bz_status_NEW "
title="NEW - FILEOPEN EMF+ images in PPT and PPTX are narrower"
href="show_bug.cgi?id=59814">tdf#59814</a>.
LO doesn't handle the stack of the context properly, as a result the
combination of ModifyWorldTransform records places the rectangle outside of the
visible area.
In the original bug that leads to shifts of some shape positions.</pre>
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