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Unified Diff: Source/core/layout/style/GridCoordinate.h

Issue 1045723009: Move core/layout/style to core/style (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Rebase. Created 5 years, 9 months ago
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Index: Source/core/layout/style/GridCoordinate.h
diff --git a/Source/core/layout/style/GridCoordinate.h b/Source/core/layout/style/GridCoordinate.h
deleted file mode 100644
index 3a4f8056458066d8b2e8258e4564f434cc8e6976..0000000000000000000000000000000000000000
--- a/Source/core/layout/style/GridCoordinate.h
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * 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/layout/style/GridResolvedPosition.h"
-#include "wtf/HashMap.h"
-#include "wtf/PassOwnPtr.h"
-#include "wtf/text/WTFString.h"
-
-namespace blink {
-
-// Recommended maximum size for both explicit and implicit grids.
-const size_t kGridMaxTracks = 1000000;
-
-// A span in a single direction (either rows or columns). Note that |resolvedInitialPosition|
-// and |resolvedFinalPosition| are grid areas' indexes, NOT grid lines'. Iterating over the
-// span should include both |resolvedInitialPosition| and |resolvedFinalPosition| to be correct.
-struct GridSpan {
- static PassOwnPtr<GridSpan> create(const GridResolvedPosition& resolvedInitialPosition, const GridResolvedPosition& resolvedFinalPosition)
- {
- return adoptPtr(new GridSpan(resolvedInitialPosition, resolvedFinalPosition));
- }
-
- static PassOwnPtr<GridSpan> createWithSpanAgainstOpposite(const GridResolvedPosition& resolvedOppositePosition, const GridPosition& position, GridPositionSide side)
- {
- // 'span 1' is contained inside a single grid track regardless of the direction.
- // That's why the CSS span value is one more than the offset we apply.
- size_t positionOffset = position.spanPosition() - 1;
- if (side == ColumnStartSide || side == RowStartSide) {
- GridResolvedPosition initialResolvedPosition = GridResolvedPosition(std::max<int>(0, resolvedOppositePosition.toInt() - positionOffset));
- return GridSpan::create(initialResolvedPosition, resolvedOppositePosition);
- }
-
- return GridSpan::create(resolvedOppositePosition, GridResolvedPosition(resolvedOppositePosition.toInt() + positionOffset));
- }
-
- static PassOwnPtr<GridSpan> createWithNamedSpanAgainstOpposite(const GridResolvedPosition& resolvedOppositePosition, const GridPosition& position, GridPositionSide side, const Vector<size_t>& gridLines)
- {
- if (side == RowStartSide || side == ColumnStartSide)
- return createWithInitialNamedSpanAgainstOpposite(resolvedOppositePosition, position, gridLines);
-
- return createWithFinalNamedSpanAgainstOpposite(resolvedOppositePosition, position, gridLines);
- }
-
- static PassOwnPtr<GridSpan> createWithInitialNamedSpanAgainstOpposite(const GridResolvedPosition& resolvedOppositePosition, const GridPosition& position, const Vector<size_t>& gridLines)
- {
- // The grid line inequality needs to be strict (which doesn't match the after / end case) because |resolvedOppositePosition|
- // is already converted to an index in our grid representation (ie one was removed from the grid line to account for the side).
- size_t firstLineBeforeOppositePositionIndex = 0;
- const size_t* firstLineBeforeOppositePosition = std::lower_bound(gridLines.begin(), gridLines.end(), resolvedOppositePosition.toInt());
- if (firstLineBeforeOppositePosition != gridLines.end()) {
- if (*firstLineBeforeOppositePosition > resolvedOppositePosition.toInt() && firstLineBeforeOppositePosition != gridLines.begin())
- --firstLineBeforeOppositePosition;
-
- firstLineBeforeOppositePositionIndex = firstLineBeforeOppositePosition - gridLines.begin();
- }
-
- size_t gridLineIndex = std::max<int>(0, firstLineBeforeOppositePositionIndex - position.spanPosition() + 1);
- GridResolvedPosition resolvedGridLinePosition = GridResolvedPosition(gridLines[gridLineIndex]);
- if (resolvedGridLinePosition > resolvedOppositePosition)
- resolvedGridLinePosition = resolvedOppositePosition;
- return GridSpan::create(resolvedGridLinePosition, resolvedOppositePosition);
- }
-
- static PassOwnPtr<GridSpan> createWithFinalNamedSpanAgainstOpposite(const GridResolvedPosition& resolvedOppositePosition, const GridPosition& position, const Vector<size_t>& gridLines)
- {
- size_t firstLineAfterOppositePositionIndex = gridLines.size() - 1;
- const size_t* firstLineAfterOppositePosition = std::upper_bound(gridLines.begin(), gridLines.end(), resolvedOppositePosition.toInt());
- if (firstLineAfterOppositePosition != gridLines.end())
- firstLineAfterOppositePositionIndex = firstLineAfterOppositePosition - gridLines.begin();
-
- size_t gridLineIndex = std::min(gridLines.size() - 1, firstLineAfterOppositePositionIndex + position.spanPosition() - 1);
- GridResolvedPosition resolvedGridLinePosition = GridResolvedPosition::adjustGridPositionForAfterEndSide(gridLines[gridLineIndex]);
- if (resolvedGridLinePosition < resolvedOppositePosition)
- resolvedGridLinePosition = resolvedOppositePosition;
- return GridSpan::create(resolvedOppositePosition, resolvedGridLinePosition);
- }
-
- GridSpan(const GridResolvedPosition& resolvedInitialPosition, const GridResolvedPosition& resolvedFinalPosition)
- : resolvedInitialPosition(std::min(resolvedInitialPosition.toInt(), kGridMaxTracks - 1))
- , resolvedFinalPosition(std::min(resolvedFinalPosition.toInt(), kGridMaxTracks))
- {
- ASSERT(resolvedInitialPosition <= resolvedFinalPosition);
- }
-
- bool operator==(const GridSpan& o) const
- {
- return resolvedInitialPosition == o.resolvedInitialPosition && resolvedFinalPosition == o.resolvedFinalPosition;
- }
-
- size_t integerSpan() const
- {
- return resolvedFinalPosition.toInt() - resolvedInitialPosition.toInt() + 1;
- }
-
- GridResolvedPosition resolvedInitialPosition;
- GridResolvedPosition resolvedFinalPosition;
-
- typedef GridResolvedPosition iterator;
-
- iterator begin() const
- {
- return resolvedInitialPosition;
- }
-
- iterator end() const
- {
- return resolvedFinalPosition.next();
- }
-};
-
-// This represents a grid area that spans in both rows' and columns' direction.
-struct GridCoordinate {
- // HashMap requires a default constuctor.
- GridCoordinate()
- : columns(0, 0)
- , rows(0, 0)
- {
- }
-
- 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);
- }
-
- GridResolvedPosition positionForSide(GridPositionSide side) const
- {
- switch (side) {
- case ColumnStartSide:
- return columns.resolvedInitialPosition;
- case ColumnEndSide:
- return columns.resolvedFinalPosition;
- case RowStartSide:
- return rows.resolvedInitialPosition;
- case RowEndSide:
- return rows.resolvedFinalPosition;
- }
- ASSERT_NOT_REACHED();
- return 0;
- }
-
- GridSpan columns;
- GridSpan rows;
-};
-
-typedef HashMap<String, GridCoordinate> NamedGridAreaMap;
-
-} // namespace blink
-
-#endif // GridCoordinate_h
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