Move ClipRect and related classes from layout/ to paint/.

third_party/WebKit/Source/core/paint/ClipRects.h

+/*
+ * Copyright (C) 2003, 2009, 2012 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE COMPUTER, INC. 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 ClipRects_h
+#define ClipRects_h
+
+#include "core/paint/ClipRect.h"
+#include "wtf/RefCounted.h"
+
+namespace blink {
+
+class ClipRects : public RefCounted<ClipRects> {
+  USING_FAST_MALLOC(ClipRects);
+
+ public:
+  static PassRefPtr<ClipRects> create() { return adoptRef(new ClipRects); }
+  static PassRefPtr<ClipRects> create(const ClipRects& other) {
+    return adoptRef(new ClipRects(other));
+  }
+
+  ClipRects() : m_fixed(0) {}
+
+  void reset(const LayoutRect& r) {
+    m_overflowClipRect = r;
+    m_fixedClipRect = r;
+    m_posClipRect = r;
+    m_fixed = 0;
+  }
+
+  const ClipRect& overflowClipRect() const { return m_overflowClipRect; }
+  void setOverflowClipRect(const ClipRect& r) { m_overflowClipRect = r; }
+
+  const ClipRect& fixedClipRect() const { return m_fixedClipRect; }
+  void setFixedClipRect(const ClipRect& r) { m_fixedClipRect = r; }
+
+  const ClipRect& posClipRect() const { return m_posClipRect; }
+  void setPosClipRect(const ClipRect& r) { m_posClipRect = r; }
+
+  bool fixed() const { return static_cast<bool>(m_fixed); }
+  void setFixed(bool fixed) { m_fixed = fixed ? 1 : 0; }
+
+  bool operator==(const ClipRects& other) const {
+    return m_overflowClipRect == other.overflowClipRect() &&
+           m_fixedClipRect == other.fixedClipRect() &&
+           m_posClipRect == other.posClipRect() && fixed() == other.fixed();
+  }
+
+  bool operator!=(const ClipRects& other) const { return !(*this == other); }
+
+  ClipRects& operator=(const ClipRects& other) {
+    m_overflowClipRect = other.overflowClipRect();
+    m_fixedClipRect = other.fixedClipRect();
+    m_posClipRect = other.posClipRect();
+    m_fixed = other.fixed();
+    return *this;
+  }
+
+ private:
+  ClipRects(const LayoutRect& r)
+      : m_overflowClipRect(r),
+        m_fixedClipRect(r),
+        m_posClipRect(r),
+        m_fixed(0) {}
+
+  ClipRects(const ClipRects& other)
+      : m_overflowClipRect(other.overflowClipRect()),
+        m_fixedClipRect(other.fixedClipRect()),
+        m_posClipRect(other.posClipRect()),
+        m_fixed(other.fixed()) {}
+
+  ClipRect m_overflowClipRect;
+  ClipRect m_fixedClipRect;
+  ClipRect m_posClipRect;
+  unsigned m_fixed;
+};
+
+}  // namespace blink
+
+#endif  // ClipRects_h