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| author | J-P Nurmi <jpnurmi@digia.com> | 2013-11-27 13:24:59 +0100 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2013-11-29 09:55:47 +0100 |
| commit | 7d5448d9e2ae4d2d10c0cff867cf34b315336feb (patch) | |
| tree | ba3b9c948be2922b4c95f123f5329f1d7d2cd5b7 | |
| parent | 6c3adb5f966e349f0488c194462e48cc8ddf248e (diff) | |
| download | qtbase-7d5448d9e2ae4d2d10c0cff867cf34b315336feb.tar.gz | |
Docs: add important QWheelEvent::phase() related notes
Change-Id: I4901b96b44b7c1179e678689af5962cb4570d50d
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
| -rw-r--r-- | src/gui/kernel/qevent.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp index 28666085a7..88f132b877 100644 --- a/src/gui/kernel/qevent.cpp +++ b/src/gui/kernel/qevent.cpp @@ -709,6 +709,12 @@ QWheelEvent::QWheelEvent(const QPointF &pos, const QPointF& globalPos, Example: \snippet code/src_gui_kernel_qevent.cpp 0 + + \note On platforms that support scrolling \l{phase()}{phases}, the delta may be null when: + \list + \li scrolling is about to begin, but the distance did not yet change (Qt::ScrollBegin), + \li or scrolling has ended and the distance did not change anymore (Qt::ScrollEnd). + \endlist */ /*! @@ -731,6 +737,12 @@ QWheelEvent::QWheelEvent(const QPointF &pos, const QPointF& globalPos, Example: \snippet code/src_gui_kernel_qevent.cpp 0 + + \note On platforms that support scrolling \l{phase()}{phases}, the delta may be null when: + \list + \li scrolling is about to begin, but the distance did not yet change (Qt::ScrollBegin), + \li or scrolling has ended and the distance did not change anymore (Qt::ScrollEnd). + \endlist */ /*! @@ -830,6 +842,9 @@ QWheelEvent::QWheelEvent(const QPointF &pos, const QPointF& globalPos, \since 5.2 Returns the scrolling phase of this wheel event. + + \note The Qt::ScrollBegin and Qt::ScrollEnd phases are currently + supported only on Mac OS X. */ |