Method itemPageUp

src/main/java/ui/VirtualList.java:1046–1073

()

    }
    
    private boolean itemPageUp() {
        stickyWindow=false;
        Object o = getFocusedObject();
	if (o == null) {
            return false;
        }

        if (((VirtualElement) o).getVHeight() <= winHeight) {
            //stickyWindow=true;
            return false;
        }

        if (!cursorInWindow()) {
            return false;
        }
        
        int remainder = win_top - itemLayoutY[cursor];
        if (remainder <= 0) {
            return false;
        }
        if (remainder <= winHeight) {
            win_top = itemLayoutY[cursor];
            return true;
        }

        win_top -= winHeight - stringHeight;//-stringHeight;
        return true;
    }

    public void pageLeft() {
        if (getItemCount()==0)