Index: third_party/WebKit/Source/core/layout/ng/geometry/ng_box_strut.h |
diff --git a/third_party/WebKit/Source/core/layout/ng/geometry/ng_box_strut.h b/third_party/WebKit/Source/core/layout/ng/geometry/ng_box_strut.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..269616b6304b9c66afac8ba69bdd1f52147c888b |
--- /dev/null |
+++ b/third_party/WebKit/Source/core/layout/ng/geometry/ng_box_strut.h |
@@ -0,0 +1,66 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef NGBoxStrut_h |
+#define NGBoxStrut_h |
+ |
+#include "core/CoreExport.h" |
+#include "core/layout/ng/ng_writing_mode.h" |
mstensho (USE GERRIT)
2017/02/28 12:19:47
Random thought (not something you necessarily need
eae
2017/02/28 12:26:34
Ideally long term (post NG) all of these files sho
mstensho (USE GERRIT)
2017/02/28 12:31:28
Acknowledged.
Makes sense. Thanks.
|
+#include "platform/LayoutUnit.h" |
+#include "platform/text/TextDirection.h" |
+ |
+namespace blink { |
+ |
+struct NGBoxStrut; |
+ |
+// Struct to store physical dimensions, independent of writing mode and |
+// direction. |
+// See https://drafts.csswg.org/css-writing-modes-3/#abstract-box |
+struct CORE_EXPORT NGPhysicalBoxStrut { |
+ LayoutUnit left; |
+ LayoutUnit right; |
+ LayoutUnit top; |
+ LayoutUnit bottom; |
+ NGBoxStrut ConvertToLogical(NGWritingMode, TextDirection) const; |
+}; |
+ |
+// This struct is used for storing margins, borders or padding of a box on all |
+// four edges. |
+struct CORE_EXPORT NGBoxStrut { |
+ LayoutUnit inline_start; |
+ LayoutUnit inline_end; |
+ LayoutUnit block_start; |
+ LayoutUnit block_end; |
+ |
+ LayoutUnit InlineSum() const { return inline_start + inline_end; } |
+ LayoutUnit BlockSum() const { return block_start + block_end; } |
+ |
+ bool IsEmpty() const; |
+ |
+ // The following two operators exist primarily to have an easy way to access |
+ // the sum of border and padding. |
+ NGBoxStrut& operator+=(const NGBoxStrut& other) { |
+ inline_start += other.inline_start; |
+ inline_end += other.inline_end; |
+ block_start += other.block_start; |
+ block_end += other.block_end; |
+ return *this; |
+ } |
+ |
+ NGBoxStrut operator+(const NGBoxStrut& other) { |
+ NGBoxStrut result(*this); |
+ result += other; |
+ return result; |
+ } |
+ |
+ bool operator==(const NGBoxStrut& other) const; |
+ |
+ String ToString() const; |
+}; |
+ |
+CORE_EXPORT std::ostream& operator<<(std::ostream&, const NGBoxStrut&); |
+ |
+} // namespace blink |
+ |
+#endif // NGBoxStrut_h |