/* * Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef ScrollBar_h #define ScrollBar_h #include "Widget.h" #ifdef __OBJC__ @class NSScroller; #else class NSScroller; typedef int NSScrollerPart; #endif namespace WebCore { enum ScrollDirection { ScrollUp, ScrollDown, ScrollLeft, ScrollRight }; enum ScrollGranularity { ScrollByLine, ScrollByPage, ScrollByDocument, ScrollByWheel }; // COPIED FROM NSScroller.h enum { NSScrollerNoPart = 0, NSScrollerDecrementPage = 1, NSScrollerKnob = 2, NSScrollerIncrementPage = 3, NSScrollerDecrementLine = 4, NSScrollerIncrementLine = 5, NSScrollerKnobSlot = 6 }; typedef unsigned int NSScrollerPart; enum ScrollBarOrientation { HorizontalScrollBar, VerticalScrollBar }; class ScrollBar : public Widget { public: ScrollBar(ScrollBarOrientation); virtual ~ScrollBar(); ScrollBarOrientation orientation() { return m_orientation; } int value() { return m_currentPos; } bool setValue(int v); void setSteps(int lineStep, int pageStep); void setKnobProportion(int visibleSize, int totalSize); bool scrollbarHit(NSScrollerPart); void valueChanged(); bool scroll(ScrollDirection, ScrollGranularity, float multiplier = 1.0); private: ScrollBarOrientation m_orientation; int m_visibleSize; int m_totalSize; int m_currentPos; int m_lineStep; int m_pageStep; }; } #endif