73 lines
3.3 KiB
C++
73 lines
3.3 KiB
C++
/*
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* Copyright (C) 2008 Apple Inc. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "ScrollbarTheme.h"
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#if PLATFORM(COCOA)
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OBJC_CLASS NSScrollerImp;
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#endif
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namespace WebCore {
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class ScrollbarThemeComposite : public ScrollbarTheme {
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public:
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// Implement ScrollbarTheme interface
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bool paint(Scrollbar&, GraphicsContext&, const IntRect& damageRect) override;
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ScrollbarPart hitTest(Scrollbar&, const IntPoint&) override;
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void invalidatePart(Scrollbar&, ScrollbarPart) override;
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int thumbPosition(Scrollbar&) override;
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int thumbLength(Scrollbar&) override;
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int trackPosition(Scrollbar&) override;
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int trackLength(Scrollbar&) override;
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void paintOverhangAreas(ScrollView&, GraphicsContext&, const IntRect& horizontalOverhangArea, const IntRect& verticalOverhangArea, const IntRect& dirtyRect) override;
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virtual bool hasButtons(Scrollbar&) = 0;
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virtual bool hasThumb(Scrollbar&) = 0;
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virtual IntRect backButtonRect(Scrollbar&, ScrollbarPart, bool painting = false) = 0;
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virtual IntRect forwardButtonRect(Scrollbar&, ScrollbarPart, bool painting = false) = 0;
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virtual IntRect trackRect(Scrollbar&, bool painting = false) = 0;
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virtual IntRect thumbRect(Scrollbar&);
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virtual void splitTrack(Scrollbar&, const IntRect& track, IntRect& startTrack, IntRect& thumb, IntRect& endTrack);
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virtual int minimumThumbLength(Scrollbar&);
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virtual void willPaintScrollbar(GraphicsContext&, Scrollbar&) { }
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virtual void didPaintScrollbar(GraphicsContext&, Scrollbar&) { }
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virtual void paintScrollbarBackground(GraphicsContext&, Scrollbar&) { }
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virtual void paintTrackBackground(GraphicsContext&, Scrollbar&, const IntRect&) { }
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virtual void paintTrackPiece(GraphicsContext&, Scrollbar&, const IntRect&, ScrollbarPart) { }
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virtual void paintButton(GraphicsContext&, Scrollbar&, const IntRect&, ScrollbarPart) { }
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virtual void paintThumb(GraphicsContext&, Scrollbar&, const IntRect&) { }
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virtual IntRect constrainTrackRectToTrackPieces(Scrollbar&, const IntRect& rect) { return rect; }
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};
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}
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