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/*
* Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 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 Rect_h
#define Rect_h
#include "CSSPrimitiveValue.h"
#include <wtf/RefPtr.h>
#include <wtf/text/StringBuilder.h>
namespace WebCore {
class RectBase {
public:
CSSPrimitiveValue* top() const { return m_top.get(); }
CSSPrimitiveValue* right() const { return m_right.get(); }
CSSPrimitiveValue* bottom() const { return m_bottom.get(); }
CSSPrimitiveValue* left() const { return m_left.get(); }
void setTop(PassRefPtr<CSSPrimitiveValue> top) { m_top = top; }
void setRight(PassRefPtr<CSSPrimitiveValue> right) { m_right = right; }
void setBottom(PassRefPtr<CSSPrimitiveValue> bottom) { m_bottom = bottom; }
void setLeft(PassRefPtr<CSSPrimitiveValue> left) { m_left = left; }
bool equals(const RectBase& other) const
{
return compareCSSValuePtr(m_top, other.m_top)
&& compareCSSValuePtr(m_right, other.m_right)
&& compareCSSValuePtr(m_left, other.m_left)
&& compareCSSValuePtr(m_bottom, other.m_bottom);
}
#if ENABLE(CSS_VARIABLES)
bool hasVariableReference() const
{
return m_top->hasVariableReference()
|| m_right->hasVariableReference()
|| m_bottom->hasVariableReference()
|| m_left->hasVariableReference();
}
#endif
protected:
RectBase() { }
RectBase(const RectBase& cloneFrom)
: m_top(cloneFrom.m_top ? cloneFrom.m_top->cloneForCSSOM() : 0)
, m_right(cloneFrom.m_right ? cloneFrom.m_right->cloneForCSSOM() : 0)
, m_bottom(cloneFrom.m_bottom ? cloneFrom.m_bottom->cloneForCSSOM() : 0)
, m_left(cloneFrom.m_left ? cloneFrom.m_left->cloneForCSSOM() : 0)
{
}
~RectBase() { }
private:
RefPtr<CSSPrimitiveValue> m_top;
RefPtr<CSSPrimitiveValue> m_right;
RefPtr<CSSPrimitiveValue> m_bottom;
RefPtr<CSSPrimitiveValue> m_left;
};
class Rect : public RectBase, public RefCounted<Rect> {
public:
static PassRefPtr<Rect> create() { return adoptRef(new Rect); }
PassRefPtr<Rect> cloneForCSSOM() const { return adoptRef(new Rect(*this)); }
String cssText() const
{
return generateCSSString(top()->cssText(), right()->cssText(), bottom()->cssText(), left()->cssText());
}
#if ENABLE(CSS_VARIABLES)
String serializeResolvingVariables(const HashMap<AtomicString, String>& variables) const
{
return generateCSSString(top()->customSerializeResolvingVariables(variables),
right()->customSerializeResolvingVariables(variables),
bottom()->customSerializeResolvingVariables(variables),
left()->customSerializeResolvingVariables(variables));
}
#endif
private:
Rect() { }
Rect(const Rect& cloneFrom) : RectBase(cloneFrom), RefCounted<Rect>() { }
static String generateCSSString(const String& top, const String& right, const String& bottom, const String& left)
{
return "rect(" + top + ' ' + right + ' ' + bottom + ' ' + left + ')';
}
};
class Quad : public RectBase, public RefCounted<Quad> {
public:
static PassRefPtr<Quad> create() { return adoptRef(new Quad); }
PassRefPtr<Quad> cloneForCSSOM() const { return adoptRef(new Quad(*this)); }
String cssText() const
{
return generateCSSString(top()->cssText(), right()->cssText(), bottom()->cssText(), left()->cssText());
}
#if ENABLE(CSS_VARIABLES)
String serializeResolvingVariables(const HashMap<AtomicString, String>& variables) const
{
return generateCSSString(top()->customSerializeResolvingVariables(variables),
right()->customSerializeResolvingVariables(variables),
bottom()->customSerializeResolvingVariables(variables),
left()->customSerializeResolvingVariables(variables));
}
#endif
private:
Quad() { }
Quad(const Quad& cloneFrom) : RectBase(cloneFrom), RefCounted<Quad>() { }
static String generateCSSString(const String& top, const String& right, const String& bottom, const String& left)
{
StringBuilder result;
// reserve space for the four strings, plus three space separator characters.
result.reserveCapacity(top.length() + right.length() + bottom.length() + left.length() + 3);
result.append(top);
if (right != top || bottom != top || left != top) {
result.append(' ');
result.append(right);
if (bottom != top || right != left) {
result.append(' ');
result.append(bottom);
if (left != right) {
result.append(' ');
result.append(left);
}
}
}
return result.toString();
}
};
} // namespace WebCore
#endif // Rect_h
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