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| 1 /* | 1 /* |
| 2 * Copyright (c) 2010, Google Inc. All rights reserved. | 2 * Copyright (c) 2010, Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
| (...skipping 18 matching lines...) Expand all Loading... |
| 29 */ | 29 */ |
| 30 | 30 |
| 31 #include "config.h" | 31 #include "config.h" |
| 32 #include "platform/scroll/ScrollAnimator.h" | 32 #include "platform/scroll/ScrollAnimator.h" |
| 33 | 33 |
| 34 #include "platform/geometry/FloatPoint.h" | 34 #include "platform/geometry/FloatPoint.h" |
| 35 #include "platform/scroll/ScrollableArea.h" | 35 #include "platform/scroll/ScrollableArea.h" |
| 36 #include "wtf/PassOwnPtr.h" | 36 #include "wtf/PassOwnPtr.h" |
| 37 #include <algorithm> | 37 #include <algorithm> |
| 38 | 38 |
| 39 using namespace std; | |
| 40 | |
| 41 namespace blink { | 39 namespace blink { |
| 42 | 40 |
| 43 ScrollAnimator::ScrollAnimator(ScrollableArea* scrollableArea) | 41 ScrollAnimator::ScrollAnimator(ScrollableArea* scrollableArea) |
| 44 : m_scrollableArea(scrollableArea) | 42 : m_scrollableArea(scrollableArea) |
| 45 , m_currentPosX(0) | 43 , m_currentPosX(0) |
| 46 , m_currentPosY(0) | 44 , m_currentPosY(0) |
| 47 { | 45 { |
| 48 } | 46 } |
| 49 | 47 |
| 50 ScrollAnimator::~ScrollAnimator() | 48 ScrollAnimator::~ScrollAnimator() |
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| 139 } | 137 } |
| 140 | 138 |
| 141 float ScrollAnimator::clampScrollPosition(ScrollbarOrientation orientation, floa
t pos) | 139 float ScrollAnimator::clampScrollPosition(ScrollbarOrientation orientation, floa
t pos) |
| 142 { | 140 { |
| 143 float maxScrollPos = m_scrollableArea->maximumScrollPosition(orientation); | 141 float maxScrollPos = m_scrollableArea->maximumScrollPosition(orientation); |
| 144 float minScrollPos = m_scrollableArea->minimumScrollPosition(orientation); | 142 float minScrollPos = m_scrollableArea->minimumScrollPosition(orientation); |
| 145 return std::max(std::min(pos, maxScrollPos), minScrollPos); | 143 return std::max(std::min(pos, maxScrollPos), minScrollPos); |
| 146 } | 144 } |
| 147 | 145 |
| 148 } // namespace blink | 146 } // namespace blink |
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