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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BackgroundImageGeometry_h
#define BackgroundImageGeometry_h
#include "core/paint/PaintPhase.h"
#include "platform/geometry/LayoutPoint.h"
#include "platform/geometry/LayoutRect.h"
#include "platform/geometry/LayoutSize.h"
#include "wtf/Allocator.h"
namespace blink {
class FillLayer;
class LayoutBoxModelObject;
class LayoutObject;
class LayoutRect;
class BackgroundImageGeometry {
STACK_ALLOCATED();
public:
BackgroundImageGeometry()
: m_hasNonLocalGeometry(false)
{ }
void calculate(const LayoutBoxModelObject&, const LayoutBoxModelObject* paintContainer,
const GlobalPaintFlags, const FillLayer&, const LayoutRect& paintRect);
LayoutRect destRect() const { return m_destRect; }
LayoutSize tileSize() const { return m_tileSize; }
LayoutPoint phase() const { return m_phase; }
// Space-size represents extra width and height that may be added to
// the image if used as a pattern with background-repeat: space.
LayoutSize spaceSize() const { return m_repeatSpacing; }
// Has background-attachment: fixed. Implies that we can't always cheaply compute destRect.
bool hasNonLocalGeometry() const { return m_hasNonLocalGeometry; }
private:
void setDestRect(const LayoutRect& destRect) { m_destRect = destRect; }
void setPhase(const LayoutPoint& phase) { m_phase = phase; }
void setTileSize(const LayoutSize& tileSize) { m_tileSize = tileSize; }
void setSpaceSize(const LayoutSize& repeatSpacing) { m_repeatSpacing = repeatSpacing; }
void setPhaseX(LayoutUnit x) { m_phase.setX(x); }
void setPhaseY(LayoutUnit y) { m_phase.setY(y); }
void setNoRepeatX(LayoutUnit xOffset);
void setNoRepeatY(LayoutUnit yOffset);
void useFixedAttachment(const LayoutPoint& attachmentPoint);
void setHasNonLocalGeometry() { m_hasNonLocalGeometry = true; }
LayoutRect m_destRect;
LayoutPoint m_phase;
LayoutSize m_tileSize;
LayoutSize m_repeatSpacing;
bool m_hasNonLocalGeometry;
};
} // namespace blink
#endif // BackgroundImageGeometry_h
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