author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 01:32:07 +0300 | |
changeset 2 | 303757a437d3 |
parent 0 | 4f2f89ce4247 |
permissions | -rw-r--r-- |
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/* |
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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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#ifndef ScrollbarTheme_h |
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#define ScrollbarTheme_h |
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#include "GraphicsContext.h" |
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#include "IntRect.h" |
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#include "ScrollTypes.h" |
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namespace WebCore { |
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class PlatformMouseEvent; |
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class Scrollbar; |
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class ScrollView; |
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class ScrollbarTheme : public Noncopyable { |
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public: |
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virtual ~ScrollbarTheme() {}; |
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virtual bool paint(Scrollbar*, GraphicsContext*, const IntRect& /*damageRect*/) { return false; } |
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virtual ScrollbarPart hitTest(Scrollbar*, const PlatformMouseEvent&) { return NoPart; } |
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virtual int scrollbarThickness(ScrollbarControlSize = RegularScrollbar) { return 0; } |
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virtual ScrollbarButtonsPlacement buttonsPlacement() const { return ScrollbarButtonsSingle; } |
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virtual bool supportsControlTints() const { return false; } |
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virtual void themeChanged() {} |
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virtual bool invalidateOnMouseEnterExit() { return false; } |
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void invalidateParts(Scrollbar* scrollbar, ScrollbarControlPartMask mask) |
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{ |
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if (mask & BackButtonStartPart) |
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invalidatePart(scrollbar, BackButtonStartPart); |
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if (mask & ForwardButtonStartPart) |
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invalidatePart(scrollbar, ForwardButtonStartPart); |
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if (mask & BackTrackPart) |
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invalidatePart(scrollbar, BackTrackPart); |
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if (mask & ThumbPart) |
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invalidatePart(scrollbar, ThumbPart); |
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if (mask & ForwardTrackPart) |
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invalidatePart(scrollbar, ForwardTrackPart); |
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if (mask & BackButtonEndPart) |
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invalidatePart(scrollbar, BackButtonEndPart); |
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if (mask & ForwardButtonEndPart) |
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invalidatePart(scrollbar, ForwardButtonEndPart); |
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} |
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virtual void invalidatePart(Scrollbar*, ScrollbarPart) {} |
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virtual void paintScrollCorner(ScrollView*, GraphicsContext* context, const IntRect& cornerRect) { context->fillRect(cornerRect, Color::white, DeviceColorSpace); } |
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virtual bool shouldCenterOnThumb(Scrollbar*, const PlatformMouseEvent&) { return false; } |
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virtual bool shouldSnapBackToDragOrigin(Scrollbar*, const PlatformMouseEvent&) { return false; } |
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virtual int thumbPosition(Scrollbar*) { return 0; } // The position of the thumb relative to the track. |
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virtual int thumbLength(Scrollbar*) { return 0; } // The length of the thumb along the axis of the scrollbar. |
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virtual int trackPosition(Scrollbar*) { return 0; } // The position of the track relative to the scrollbar. |
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virtual int trackLength(Scrollbar*) { return 0; } // The length of the track along the axis of the scrollbar. |
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virtual int maxOverlapBetweenPages() { return std::numeric_limits<int>::max(); } |
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virtual double initialAutoscrollTimerDelay() { return 0.25; } |
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virtual double autoscrollTimerDelay() { return 0.05; } |
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virtual void registerScrollbar(Scrollbar*) {} |
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virtual void unregisterScrollbar(Scrollbar*) {} |
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static ScrollbarTheme* nativeTheme(); // Must be implemented to return the correct theme subclass. |
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}; |
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} |
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#endif |