diff options
Diffstat (limited to 'gui/ScrollBarWidget.cpp')
| -rw-r--r-- | gui/ScrollBarWidget.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gui/ScrollBarWidget.cpp b/gui/ScrollBarWidget.cpp index c9653ef72c..52dd22ef60 100644 --- a/gui/ScrollBarWidget.cpp +++ b/gui/ScrollBarWidget.cpp @@ -31,6 +31,7 @@ * - Allow for a horizontal scrollbar, too? * - If there are less items than fit on one pages, no scrolling can be done * and we thus should not highlight the arrows/slider. + * - Allow the mouse wheel to scroll more than one line at a time */ #define UP_DOWN_BOX_HEIGHT 10 @@ -104,6 +105,23 @@ void ScrollBarWidget::handleMouseUp(int x, int y, int button, int clickCount) _draggingPart = kNoPart; } +void ScrollBarWidget::handleMouseWheel(int x, int y, int direction) +{ + int old_pos = _currentPos; + + if (_numEntries < _entriesPerPage) + return; + + if (direction < 0) { + _currentPos--; + } else { + _currentPos++; + } + + // Make sure that _currentPos is still inside the bounds + checkBounds(old_pos); +} + void ScrollBarWidget::handleMouseMoved(int x, int y, int button) { // Do nothing if there are less items than fit on one page |