diff options
Diffstat (limited to 'examples/corelib/threads')
| -rw-r--r-- | examples/corelib/threads/doc/src/mandelbrot.qdoc | 4 | ||||
| -rw-r--r-- | examples/corelib/threads/mandelbrot/mandelbrotwidget.cpp | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/examples/corelib/threads/doc/src/mandelbrot.qdoc b/examples/corelib/threads/doc/src/mandelbrot.qdoc index 274874632e..9e3fdc1dfe 100644 --- a/examples/corelib/threads/doc/src/mandelbrot.qdoc +++ b/examples/corelib/threads/doc/src/mandelbrot.qdoc @@ -304,8 +304,8 @@ \snippet threads/mandelbrot/mandelbrotwidget.cpp 12 The wheel event handler is reimplemented to make the mouse wheel - control the zoom level. QWheelEvent::delta() returns the angle of - the wheel mouse movement, in eights of a degree. For most mice, + control the zoom level. QWheelEvent::angleDelta() returns the angle + of the wheel mouse movement, in eighths of a degree. For most mice, one wheel step corresponds to 15 degrees. We find out how many mouse steps we have and determine the resulting zoom factor. For example, if we have two wheel steps in the positive direction diff --git a/examples/corelib/threads/mandelbrot/mandelbrotwidget.cpp b/examples/corelib/threads/mandelbrot/mandelbrotwidget.cpp index 71d0abb09f..822791533b 100644 --- a/examples/corelib/threads/mandelbrot/mandelbrotwidget.cpp +++ b/examples/corelib/threads/mandelbrot/mandelbrotwidget.cpp @@ -176,7 +176,7 @@ void MandelbrotWidget::keyPressEvent(QKeyEvent *event) //! [12] void MandelbrotWidget::wheelEvent(QWheelEvent *event) { - int numDegrees = event->delta() / 8; + int numDegrees = event->angleDelta().y() / 8; double numSteps = numDegrees / 15.0f; zoom(pow(ZoomInFactor, numSteps)); } |