commit 813cde918338bccc4f711230616340cad2c1d4a0
author Jan-Marek Glogowski <jan-marek.glogowski@extern.cib.de> Fri Feb 21 13:11:28 2020 +0100
committer Jan-Marek Glogowski <glogow@fbihome.de> Fri Feb 21 20:03:51 2020 +0100
tree 3e988d04bbe0c458064582299e6a57a6c664a567
parent 12d88808fbde933c0498c895ddb74700c263bf0f

tdf#130831 Qt5 don't blit damage to empty image

This prevents the crash, but I'm not sure having an empty buffer
image at this point is correct. But it doesn't look like anything
is missing in the dialog and a crash is definitly worse.

Change-Id: I7d0330b4e4a7ca64655a51c226e425e53ba12118
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/89203
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

vcl/qt5/Qt5SvpGraphics.cxx

diff --git a/vcl/qt5/Qt5SvpGraphics.cxx b/vcl/qt5/Qt5SvpGraphics.cxx
index 55de70b..364cbb1 100644
--- a/vcl/qt5/Qt5SvpGraphics.cxx
+++ b/vcl/qt5/Qt5SvpGraphics.cxx
@@ -81,6 +81,8 @@ void Qt5SvpGraphics::handleDamage(const tools::Rectangle& rDamagedRegion)

    QImage* pImage = static_cast<Qt5Graphics_Controls*>(m_pWidgetDraw.get())->getImage();
    assert(pImage);
    if (pImage->width() == 0 || pImage->height() == 0)
        return;

    BitmapBuffer aBuffer;
    QImage2BitmapBuffer(*pImage, aBuffer);