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| author | Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com> | 2009-09-17 08:21:49 (GMT) |
|---|---|---|
| committer | Jason McDonald <jason.mcdonald@nokia.com> | 2009-09-21 04:45:38 (GMT) |
| commit | e10797a6f4793b787ddfe3994761733270bbbf68 (patch) | |
| tree | c47a8f8205ed6009685f0efa06aa71345bdff7dd /doc/src/snippets/code/src_sql_kernel_qsqldatabase.cpp | |
| parent | a16de8fbf525785f2c0f6614a918be5d3be27eba (diff) | |
| download | Qt-e10797a6f4793b787ddfe3994761733270bbbf68.zip Qt-e10797a6f4793b787ddfe3994761733270bbbf68.tar.gz Qt-e10797a6f4793b787ddfe3994761733270bbbf68.tar.bz2 | |
Fix crash or painting error when drawing dashed lines with penWidth > 1
Since the width is multiplied into the dash, it needs to be divided out,
otherwise you can get a dashOffset which is greater than the pattern at
the index, and the dash can become negative. This will in turn lead to
passing a negative width to the rasterizer, which at some point will
get cast to an unsigned int and overflow. Depending on the position of
the line and size of the buffer, this will either crash or produce
garbled output.
Task-number: QT-4444
Reviewed-by: Samuel
(cherry picked from commit 603c423fc2ee2b9393e3c288e76354de0e0c1cc7)
Diffstat (limited to 'doc/src/snippets/code/src_sql_kernel_qsqldatabase.cpp')
0 files changed, 0 insertions, 0 deletions