Thorbjørn Lund Martsum 410aa20f07 QAIV - allow users to control single step in ScrollPerPixel mode ... The documentation says that we scroll one pixel, but changing the behavior in 934f062203 to do that was not well received. People were relying on the undocumented behavior - and the new behavior was considered to be a regression. (Nobody called setSingleStep since Qt in many cases provide a reasonable singleStep - which implied that their programs scrolled with 1 pixel which was quite slow). Furthermore getting the old behavior (auto set of single step) was nearly impossible. However the revert (done in 0e69230d02) gets us back to QScrollbar::setSingleStep not working in pixel scroll mode (even without it being documented - but we should also have a working API rather than documenting that it is not working) The previous approach was directly prevented Qt from changing single step (on e.g resize) at all. This patch only prevents Qt from changing when a user explicitly has called the function QScrollBar::setSingleStep (in pixel scroll mode). That is we expect that calls to setSingleStep means that the user actually wants to set the singleStep and doesn't want Qt to control that value. Furthermore it is possible to switch back to the automatically adjusted singlestep with QScrollBar::setSingleStep(-1). [ChangeLog][QtWidgets][QAbstractItemView] QTBUG-7232 - In ItemViews when scrollMode is set to scrollPerPixel, it is now possible to change the single step. Qt will automatically adjust the single step until setSingleStep is called. When setSingleStep is called it will however respect the set and stop doing automatic changes of the value. Calling setSingleStep(-1) will switch mode back to automatic adjust. Task-number: QTBUG-7232 Change-Id: Ibfe0caa9751d3bcc11bfc6e0654a3d1ac35ac8ae Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>		2015-12-09 17:53:59 +00:00
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.gitignore	Moved tests into integrationtests/ and widgets/	2011-10-20 19:45:41 +02:00
qtreeview.pro	Blacklist and skip various tests that are flakey	2015-06-14 10:50:45 +00:00
tst_qtreeview.cpp	QAIV - allow users to control single step in ScrollPerPixel mode	2015-12-09 17:53:59 +00:00