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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef NinePieceImage_h
#define NinePieceImage_h
#include "LayoutUnit.h"
#include "LengthBox.h"
#include "StyleImage.h"
namespace WebCore {
enum ENinePieceImageRule {
StretchImageRule, RoundImageRule, SpaceImageRule, RepeatImageRule
};
class NinePieceImageData {
WTF_MAKE_FAST_ALLOCATED;
public:
NinePieceImageData()
: m_image(0)
, m_imageSlices(Length(100, Percent), Length(100, Percent), Length(100, Percent), Length(100, Percent))
, m_borderSlices(Length(1, Relative), Length(1, Relative), Length(1, Relative), Length(1, Relative))
, m_outset(0)
, m_fill(false)
, m_horizontalRule(StretchImageRule)
, m_verticalRule(StretchImageRule)
{
}
NinePieceImageData(PassRefPtr<StyleImage> image, LengthBox imageSlices, bool fill, LengthBox borderSlices, LengthBox outset, ENinePieceImageRule h, ENinePieceImageRule v)
: m_image(image)
, m_imageSlices(imageSlices)
, m_borderSlices(borderSlices)
, m_outset(outset)
, m_fill(fill)
, m_horizontalRule(h)
, m_verticalRule(v)
{
}
bool operator==(const NinePieceImageData&) const;
bool operator!=(const NinePieceImageData& o) const { return !(*this == o); }
RefPtr<StyleImage> m_image;
LengthBox m_imageSlices;
LengthBox m_borderSlices;
LengthBox m_outset;
bool m_fill : 1;
unsigned m_horizontalRule : 2; // ENinePieceImageRule
unsigned m_verticalRule : 2; // ENinePieceImageRule
};
class NinePieceImage {
public:
NinePieceImage() { }
NinePieceImage(PassRefPtr<StyleImage> image, LengthBox imageSlices, bool fill, LengthBox borderSlices, LengthBox outset, ENinePieceImageRule h, ENinePieceImageRule v)
: m_data(adoptPtr(new NinePieceImageData(image, imageSlices, fill, borderSlices, outset, h, v)))
{ }
NinePieceImage(const NinePieceImage& other)
{
*this = other;
}
void operator=(const NinePieceImage& other)
{
if (!other.m_data) {
m_data.clear();
return;
}
const NinePieceImageData& otherData = other.data();
m_data = adoptPtr(new NinePieceImageData(otherData.m_image, otherData.m_imageSlices, otherData.m_fill, otherData.m_borderSlices, otherData.m_outset, static_cast<ENinePieceImageRule>(otherData.m_horizontalRule), static_cast<ENinePieceImageRule>(otherData.m_verticalRule)));
}
bool operator==(const NinePieceImage& other) const { return data() == other.data(); }
bool operator!=(const NinePieceImage& other) const { return !(*this == other); }
bool hasImage() const { return m_data && m_data->m_image; }
StyleImage* image() const { return m_data ? m_data->m_image.get() : 0; }
void setImage(PassRefPtr<StyleImage> image) { ensureData(); m_data->m_image = image; }
const LengthBox& imageSlices() const { return data().m_imageSlices; }
void setImageSlices(const LengthBox& slices) { ensureData(); m_data->m_imageSlices = slices; }
bool fill() const { return data().m_fill; }
void setFill(bool fill) { ensureData(); m_data->m_fill = fill; }
const LengthBox& borderSlices() const { return data().m_borderSlices; }
void setBorderSlices(const LengthBox& slices) { ensureData(); m_data->m_borderSlices = slices; }
const LengthBox& outset() const { return data().m_outset; }
void setOutset(const LengthBox& outset) { ensureData(); m_data->m_outset = outset; }
static LayoutUnit computeOutset(Length outsetSide, LayoutUnit borderSide)
{
if (outsetSide.isRelative())
return outsetSide.value() * borderSide;
return outsetSide.value();
}
ENinePieceImageRule horizontalRule() const { return static_cast<ENinePieceImageRule>(data().m_horizontalRule); }
void setHorizontalRule(ENinePieceImageRule rule) { ensureData(); m_data->m_horizontalRule = rule; }
ENinePieceImageRule verticalRule() const { return static_cast<ENinePieceImageRule>(data().m_verticalRule); }
void setVerticalRule(ENinePieceImageRule rule) { ensureData(); m_data->m_verticalRule = rule; }
void copyImageSlicesFrom(const NinePieceImage& other)
{
ensureData();
m_data->m_imageSlices = other.data().m_imageSlices;
m_data->m_fill = other.data().m_fill;
}
void copyBorderSlicesFrom(const NinePieceImage& other)
{
ensureData();
m_data->m_borderSlices = other.data().m_borderSlices;
}
void copyOutsetFrom(const NinePieceImage& other)
{
ensureData();
m_data->m_outset = other.data().m_outset;
}
void copyRepeatFrom(const NinePieceImage& other)
{
ensureData();
m_data->m_horizontalRule = other.data().m_horizontalRule;
m_data->m_verticalRule = other.data().m_verticalRule;
}
void setMaskDefaults()
{
ensureData();
m_data->m_imageSlices = LengthBox(0);
m_data->m_fill = true;
m_data->m_borderSlices = LengthBox();
}
private:
static const NinePieceImageData& defaultData();
void ensureData()
{
if (!m_data)
m_data = adoptPtr(new NinePieceImageData);
}
const NinePieceImageData& data() const
{
if (m_data)
return *m_data;
return defaultData();
}
OwnPtr<NinePieceImageData> m_data;
};
} // namespace WebCore
#endif // NinePieceImage_h
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