[trunk] Image::setProperty() rounds size and scale to integers

Context: trunk rev. 5511 compiled with Qt lib 4.8.0 under Win 7

Description:

The function Image::SetProperty() (in file libmscore/image.cpp, lines 147 and 150), for the P_SIZE and P_SCALE switch cases uses v.toSize() rather than v.toSizeF(), resulting in size and scale being rounded to integer values.

In most cases, this results in a distortion of the image; if the image is small (like for instance an ornament) and size is measured in spatia, this may result in image height or width being rounded to 0 and the image actually disappears.

The rounded size is then saved with the score (=> data corruption).

Note:

This applies both to images added to a score and to images added to palettes.

Marked critical as leads to data corruption.

Patch: The attached patch simply replaces toSize() with toSizeF() in the two above mentioned occurrences.

M.