我有一个带水平滚动条的GWT ScrollPanel,即
overflow-y: scroll;
如何在滚动条上绑定MouseWheel事件,以便在移动鼠标滚轮时执行水平滚动?
答案 0 :(得分:1)
请参阅此示例,了解如何收听鼠标滚轮事件: http://examples.roughian.com/index.htm#Listeners~MouseWheelListener
而不是标签扩展ScrollPanel
而不是setText
来电setHorizontalScrollPosition(int position)
public void onMouseWheel(Widget sender, MouseWheelVelocity velocity)
{
DOM.eventPreventDefault(DOM.eventGetCurrentEvent()); //prevent vertical scroll
int positionDelta = velocity.getDeltaY() * 30;
int newPosition = getHorizontalScrollPosition() - positionDelta;
setHorizontalScrollPosition(newPosition);
}