134 lines
5.9 KiB
C++
134 lines
5.9 KiB
C++
/*
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* Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved.
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* Copyright (C) 2010 Google 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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*
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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 AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY 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 OF
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* 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 "FloatQuad.h"
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#include "LayoutRect.h"
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#include "LayoutSize.h"
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namespace WebCore {
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class FloatRoundedRect;
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class LayoutUnit;
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class Region;
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class RoundedRect {
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public:
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class Radii {
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public:
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Radii() {}
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Radii(const LayoutSize& topLeft, const LayoutSize& topRight, const LayoutSize& bottomLeft, const LayoutSize& bottomRight)
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: m_topLeft(topLeft)
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, m_topRight(topRight)
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, m_bottomLeft(bottomLeft)
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, m_bottomRight(bottomRight)
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{
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}
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void setTopLeft(const LayoutSize& size) { m_topLeft = size; }
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void setTopRight(const LayoutSize& size) { m_topRight = size; }
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void setBottomLeft(const LayoutSize& size) { m_bottomLeft = size; }
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void setBottomRight(const LayoutSize& size) { m_bottomRight = size; }
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const LayoutSize& topLeft() const { return m_topLeft; }
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const LayoutSize& topRight() const { return m_topRight; }
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const LayoutSize& bottomLeft() const { return m_bottomLeft; }
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const LayoutSize& bottomRight() const { return m_bottomRight; }
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bool isZero() const;
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void includeLogicalEdges(const Radii& edges, bool isHorizontal, bool includeLogicalLeftEdge, bool includeLogicalRightEdge);
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void excludeLogicalEdges(bool isHorizontal, bool excludeLogicalLeftEdge, bool excludeLogicalRightEdge);
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void scale(float factor);
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void expand(const LayoutUnit& topWidth, const LayoutUnit& bottomWidth, const LayoutUnit& leftWidth, const LayoutUnit& rightWidth);
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void expand(const LayoutUnit& size) { expand(size, size, size, size); }
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void shrink(const LayoutUnit& topWidth, const LayoutUnit& bottomWidth, const LayoutUnit& leftWidth, const LayoutUnit& rightWidth) { expand(-topWidth, -bottomWidth, -leftWidth, -rightWidth); }
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void shrink(const LayoutUnit& size) { shrink(size, size, size, size); }
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Radii transposedRadii() const { return Radii(m_topLeft.transposedSize(), m_topRight.transposedSize(), m_bottomLeft.transposedSize(), m_bottomRight.transposedSize()); }
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private:
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LayoutSize m_topLeft;
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LayoutSize m_topRight;
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LayoutSize m_bottomLeft;
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LayoutSize m_bottomRight;
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};
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WEBCORE_EXPORT explicit RoundedRect(const LayoutRect&, const Radii& = Radii());
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RoundedRect(const LayoutUnit&, const LayoutUnit&, const LayoutUnit& width, const LayoutUnit& height);
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WEBCORE_EXPORT RoundedRect(const LayoutRect&, const LayoutSize& topLeft, const LayoutSize& topRight, const LayoutSize& bottomLeft, const LayoutSize& bottomRight);
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const LayoutRect& rect() const { return m_rect; }
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const Radii& radii() const { return m_radii; }
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bool isRounded() const { return !m_radii.isZero(); }
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bool isEmpty() const { return m_rect.isEmpty(); }
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void setRect(const LayoutRect& rect) { m_rect = rect; }
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void setRadii(const Radii& radii) { m_radii = radii; }
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void move(const LayoutSize& size) { m_rect.move(size); }
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void moveBy(const LayoutPoint& offset) { m_rect.moveBy(offset); }
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void inflate(const LayoutUnit& size) { m_rect.inflate(size); }
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void inflateWithRadii(const LayoutUnit& size);
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void expandRadii(const LayoutUnit& size) { m_radii.expand(size); }
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void shrinkRadii(const LayoutUnit& size) { m_radii.shrink(size); }
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void includeLogicalEdges(const Radii& edges, bool isHorizontal, bool includeLogicalLeftEdge, bool includeLogicalRightEdge);
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void excludeLogicalEdges(bool isHorizontal, bool excludeLogicalLeftEdge, bool excludeLogicalRightEdge);
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bool isRenderable() const;
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void adjustRadii();
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// Tests whether the quad intersects any part of this rounded rectangle.
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// This only works for convex quads.
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bool intersectsQuad(const FloatQuad&) const;
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WEBCORE_EXPORT bool contains(const LayoutRect&) const;
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FloatRoundedRect pixelSnappedRoundedRectForPainting(float deviceScaleFactor) const;
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RoundedRect transposedRect() const { return RoundedRect(m_rect.transposedRect(), m_radii.transposedRadii()); }
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private:
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LayoutRect m_rect;
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Radii m_radii;
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};
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inline bool operator==(const RoundedRect::Radii& a, const RoundedRect::Radii& b)
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{
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return a.topLeft() == b.topLeft() && a.topRight() == b.topRight() && a.bottomLeft() == b.bottomLeft() && a.bottomRight() == b.bottomRight();
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}
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inline bool operator==(const RoundedRect& a, const RoundedRect& b)
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{
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return a.rect() == b.rect() && a.radii() == b.radii();
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}
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// Snip away rectangles from corners, roughly one per step length of arc.
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WEBCORE_EXPORT Region approximateAsRegion(const RoundedRect&, unsigned stepLength = 20);
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} // namespace WebCore
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