| /* |
| * Copyright (c) 2012, Google 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 THE COPYRIGHT |
| * OWNER 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 LayoutRectOutsets_h |
| #define LayoutRectOutsets_h |
| |
| #include "platform/LayoutUnit.h" |
| #include "platform/PlatformExport.h" |
| #include "platform/geometry/FloatRectOutsets.h" |
| #include "platform/geometry/IntRectOutsets.h" |
| #include "platform/text/TextDirection.h" |
| #include "platform/text/WritingMode.h" |
| #include "platform/wtf/Allocator.h" |
| |
| namespace blink { |
| |
| // Specifies LayoutUnit lengths to be used to expand a rectangle. |
| // For example, |top()| returns the distance the top edge should be moved |
| // upward. |
| // |
| // Negative lengths can be used to express insets. |
| class PLATFORM_EXPORT LayoutRectOutsets { |
| DISALLOW_NEW(); |
| |
| public: |
| LayoutRectOutsets() {} |
| LayoutRectOutsets(LayoutUnit top, |
| LayoutUnit right, |
| LayoutUnit bottom, |
| LayoutUnit left) |
| : top_(top), right_(right), bottom_(bottom), left_(left) {} |
| LayoutRectOutsets(int top, int right, int bottom, int left) |
| : top_(LayoutUnit(top)), |
| right_(LayoutUnit(right)), |
| bottom_(LayoutUnit(bottom)), |
| left_(LayoutUnit(left)) {} |
| |
| LayoutRectOutsets(const IntRectOutsets& outsets) |
| : top_(LayoutUnit(outsets.Top())), |
| right_(LayoutUnit(outsets.Right())), |
| bottom_(LayoutUnit(outsets.Bottom())), |
| left_(LayoutUnit(outsets.Left())) {} |
| |
| LayoutRectOutsets(const FloatRectOutsets& outsets) |
| : top_(LayoutUnit(outsets.Top())), |
| right_(LayoutUnit(outsets.Right())), |
| bottom_(LayoutUnit(outsets.Bottom())), |
| left_(LayoutUnit(outsets.Left())) {} |
| |
| LayoutUnit Top() const { return top_; } |
| LayoutUnit Right() const { return right_; } |
| LayoutUnit Bottom() const { return bottom_; } |
| LayoutUnit Left() const { return left_; } |
| |
| void SetTop(LayoutUnit value) { top_ = value; } |
| void SetRight(LayoutUnit value) { right_ = value; } |
| void SetBottom(LayoutUnit value) { bottom_ = value; } |
| void SetLeft(LayoutUnit value) { left_ = value; } |
| |
| LayoutUnit LogicalTop(WritingMode) const; |
| LayoutUnit LogicalBottom(WritingMode) const; |
| LayoutUnit LogicalLeft(WritingMode) const; |
| LayoutUnit LogicalRight(WritingMode) const; |
| |
| // Produces a new LayoutRectOutsets whose |top| is the |logicalTop| of this |
| // one, and so on. |
| LayoutRectOutsets LogicalOutsets(WritingMode) const; |
| |
| // The same as |logicalOutsets|, but also adjusting for flipped lines. |
| LayoutRectOutsets LogicalOutsetsWithFlippedLines(WritingMode) const; |
| |
| LayoutUnit Before(WritingMode) const; |
| LayoutUnit After(WritingMode) const; |
| LayoutUnit Start(WritingMode, TextDirection) const; |
| LayoutUnit end(WritingMode, TextDirection) const; |
| LayoutUnit Over(WritingMode) const; |
| LayoutUnit Under(WritingMode) const; |
| |
| void SetBefore(WritingMode, LayoutUnit); |
| void SetAfter(WritingMode, LayoutUnit); |
| void SetStart(WritingMode, TextDirection, LayoutUnit); |
| void SetEnd(WritingMode, TextDirection, LayoutUnit); |
| |
| bool operator==(const LayoutRectOutsets other) const { |
| return Top() == other.Top() && Right() == other.Right() && |
| Bottom() == other.Bottom() && Left() == other.Left(); |
| } |
| |
| private: |
| LayoutUnit top_; |
| LayoutUnit right_; |
| LayoutUnit bottom_; |
| LayoutUnit left_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // LayoutRectOutsets_h |