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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - Make OutputDevice::EmulateDrawTransparent(() redundant"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=139170">139170</a>
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<th>Summary</th>
<td>Make OutputDevice::EmulateDrawTransparent(() redundant
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<th>Product</th>
<td>LibreOffice
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<th>Version</th>
<td>6.0.0.3 release
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>other
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<th>Status</th>
<td>UNCONFIRMED
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>graphics stack
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<th>Assignee</th>
<td>libreoffice-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>chris.sherlock79@gmail.com
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<p>
<div>
<pre>Description:
We currently have a function OutputDevice::EmulateDrawTransparent(). This is
used because OutputDevice::DrawTransparentNatively() can fail, because a number
of our VCL backends don't guarantee the drawing of PolyPolygons and
PolyPolylines.
We need the following backends to guarantee the drawing of PolyPolygons:
* X11SalGraphicsImpl::drawFilledTrapezoids()
* GenPspGraphics::drawPolyPolygon()
The following backends need to guarantee the drawing of PolyLines:
* X11SalGraphicsImpl::drawPolyLine()
* GenPspGraphics::drawPolyLine()
* AquaSalGraphics::drawPolyLine() - note this can only fail if using IOS
Steps to Reproduce:
n/a
Actual Results:
n/a
Expected Results:
n/a
Reproducible: Always
User Profile Reset: No
Additional Info:
We can basically remove OutputDevice::EmulateDrawTransparent() and then
collapse OutputDevice::DrawTransparentNatively() into
OutputDevice::DrawTransparent().
This will remove a lot of code that currently needs to be maintained. It will
hopefully speed up things also.</pre>
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