[css-grid] Rename GridCoordinate to GridArea

third_party/WebKit/Source/core/style/GridCoordinate.h

-/*
- * Copyright (C) 2013 Google 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:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * 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.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "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 THE COPYRIGHT
- * OWNER 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 GridCoordinate_h
-#define GridCoordinate_h
-
-#include "core/style/GridPositionsResolver.h"
-#include "wtf/Allocator.h"
-#include "wtf/HashMap.h"
-#include "wtf/PassOwnPtr.h"
-#include "wtf/text/WTFString.h"
-#include <algorithm>
-
-namespace blink {
-
-// Recommended maximum size for both explicit and implicit grids.
-const int kGridMaxTracks = 1000000;
-
-// A span in a single direction (either rows or columns). Note that |resolvedInitialPosition|
-// and |resolvedFinalPosition| are grid lines' indexes.
-// Iterating over the span shouldn't include |resolvedFinalPosition| to be correct.
-struct GridSpan {
-    USING_FAST_MALLOC(GridSpan);
-public:
-
-    static GridSpan untranslatedDefiniteGridSpan(int resolvedInitialPosition, int resolvedFinalPosition)
-    {
-        return GridSpan(resolvedInitialPosition, resolvedFinalPosition, UntranslatedDefinite);
-    }
-
-    static GridSpan translatedDefiniteGridSpan(size_t resolvedInitialPosition, size_t resolvedFinalPosition)
-    {
-        return GridSpan(resolvedInitialPosition, resolvedFinalPosition, TranslatedDefinite);
-    }
-
-    static GridSpan indefiniteGridSpan()
-    {
-        return GridSpan(0, 1, Indefinite);
-    }
-
-    bool operator==(const GridSpan& o) const
-    {
-        return m_type == o.m_type && m_resolvedInitialPosition == o.m_resolvedInitialPosition && m_resolvedFinalPosition == o.m_resolvedFinalPosition;
-    }
-
-    size_t integerSpan() const
-    {
-        ASSERT(isTranslatedDefinite());
-        ASSERT(m_resolvedFinalPosition > m_resolvedInitialPosition);
-        return m_resolvedFinalPosition - m_resolvedInitialPosition;
-    }
-
-    int untranslatedResolvedInitialPosition() const
-    {
-        ASSERT(m_type == UntranslatedDefinite);
-        return m_resolvedInitialPosition;
-    }
-
-    int untranslatedResolvedFinalPosition() const
-    {
-        ASSERT(m_type == UntranslatedDefinite);
-        return m_resolvedFinalPosition;
-    }
-
-    size_t resolvedInitialPosition() const
-    {
-        ASSERT(isTranslatedDefinite());
-        ASSERT(m_resolvedInitialPosition >= 0);
-        return m_resolvedInitialPosition;
-    }
-
-    size_t resolvedFinalPosition() const
-    {
-        ASSERT(isTranslatedDefinite());
-        ASSERT(m_resolvedFinalPosition > 0);
-        return m_resolvedFinalPosition;
-    }
-
-    struct GridSpanIterator {
-        GridSpanIterator(size_t v) : value(v) {}
-
-        size_t operator*() const { return value; }
-        size_t operator++() { return value++; }
-        bool operator!=(GridSpanIterator other) const { return value != other.value; }
-
-        size_t value;
-    };
-
-    GridSpanIterator begin() const
-    {
-        ASSERT(isTranslatedDefinite());
-        return m_resolvedInitialPosition;
-    }
-
-    GridSpanIterator end() const
-    {
-        ASSERT(isTranslatedDefinite());
-        return m_resolvedFinalPosition;
-    }
-
-    bool isTranslatedDefinite() const
-    {
-        return m_type == TranslatedDefinite;
-    }
-
-    bool isIndefinite() const
-    {
-        return m_type == Indefinite;
-    }
-
-    void translate(size_t offset)
-    {
-        ASSERT(m_type == UntranslatedDefinite);
-
-        m_type = TranslatedDefinite;
-        m_resolvedInitialPosition += offset;
-        m_resolvedFinalPosition += offset;
-
-        ASSERT(m_resolvedInitialPosition >= 0);
-        ASSERT(m_resolvedFinalPosition > 0);
-    }
-
-private:
-
-    enum GridSpanType {UntranslatedDefinite, TranslatedDefinite, Indefinite};
-
-    GridSpan(int resolvedInitialPosition, int resolvedFinalPosition, GridSpanType type)
-        : m_type(type)
-    {
-#if ENABLE(ASSERT)
-        ASSERT(resolvedInitialPosition < resolvedFinalPosition);
-        if (type == TranslatedDefinite) {
-            ASSERT(resolvedInitialPosition >= 0);
-            ASSERT(resolvedFinalPosition > 0);
-        }
-#endif
-
-        if (resolvedInitialPosition >= 0)
-            m_resolvedInitialPosition = std::min(resolvedInitialPosition, kGridMaxTracks - 1);
-        else
-            m_resolvedInitialPosition = std::max(resolvedInitialPosition, -kGridMaxTracks);
-
-        if (resolvedFinalPosition >= 0)
-            m_resolvedFinalPosition = std::min(resolvedFinalPosition, kGridMaxTracks);
-        else
-            m_resolvedFinalPosition = std::max(resolvedFinalPosition, -kGridMaxTracks + 1);
-    }
-
-    int m_resolvedInitialPosition;
-    int m_resolvedFinalPosition;
-    GridSpanType m_type;
-};
-
-// This represents a grid area that spans in both rows' and columns' direction.
-struct GridCoordinate {
-    USING_FAST_MALLOC(GridCoordinate);
-public:
-    // HashMap requires a default constuctor.
-    GridCoordinate()
-        : columns(GridSpan::indefiniteGridSpan())
-        , rows(GridSpan::indefiniteGridSpan())
-    {
-    }
-
-    GridCoordinate(const GridSpan& r, const GridSpan& c)
-        : columns(c)
-        , rows(r)
-    {
-    }
-
-    bool operator==(const GridCoordinate& o) const
-    {
-        return columns == o.columns && rows == o.rows;
-    }
-
-    bool operator!=(const GridCoordinate& o) const
-    {
-        return !(*this == o);
-    }
-
-    GridSpan columns;
-    GridSpan rows;
-};
-
-typedef HashMap<String, GridCoordinate> NamedGridAreaMap;
-
-} // namespace blink
-
-#endif // GridCoordinate_h