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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2007 David Smith (catfish.man@gmail.com) | 4 * (C) 2007 David Smith (catfish.man@gmail.com) |
5 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All r
ights reserved. | 5 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All r
ights reserved. |
6 * | 6 * |
7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
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448 | 448 |
449 Position positionForBox(InlineBox*, bool start = true) const; | 449 Position positionForBox(InlineBox*, bool start = true) const; |
450 PositionWithAffinity positionForPointWithInlineChildren(const LayoutPoint&); | 450 PositionWithAffinity positionForPointWithInlineChildren(const LayoutPoint&); |
451 | 451 |
452 // End helper functions and structs used by layoutBlockChildren. | 452 // End helper functions and structs used by layoutBlockChildren. |
453 | 453 |
454 void removeFromGlobalMaps(); | 454 void removeFromGlobalMaps(); |
455 bool widthAvailableToChildrenHasChanged(); | 455 bool widthAvailableToChildrenHasChanged(); |
456 | 456 |
457 public: | 457 public: |
458 // Specify which page or column to associate with an offset, if said offset
is exactly at a page | |
459 // or column boundary. | |
460 enum PageBoundaryRule { AssociateWithFormerPage, AssociateWithLatterPage }; | |
461 | |
462 LayoutUnit pageLogicalHeightForOffset(LayoutUnit) const; | |
463 LayoutUnit pageRemainingLogicalHeightForOffset(LayoutUnit, PageBoundaryRule)
const; | |
464 | |
465 // Calculate the strut to insert in order fit content of size |contentLogica
lHeight|. | |
466 // |strutToNextPage| is the strut to add to |offset| to merely get to the to
p of the next page | |
467 // or column. This is what will be returned if the content can actually fit
there. Otherwise, | |
468 // return the distance to the next fragmentainer that can fit this piece of
content. | |
469 LayoutUnit calculatePaginationStrutToFitContent(LayoutUnit offset, LayoutUni
t strutToNextPage, LayoutUnit contentLogicalHeight) const; | |
470 | |
471 static void collapseAnonymousBlockChild(LayoutBlock* parent, LayoutBlock* ch
ild); | 458 static void collapseAnonymousBlockChild(LayoutBlock* parent, LayoutBlock* ch
ild); |
472 protected: | 459 protected: |
473 bool isPageLogicalHeightKnown(LayoutUnit logicalOffset) const { return pageL
ogicalHeightForOffset(logicalOffset); } | 460 bool isPageLogicalHeightKnown(LayoutUnit logicalOffset) const { return pageL
ogicalHeightForOffset(logicalOffset); } |
474 | 461 |
475 // Returns the logical offset at the top of the next page, for a given offse
t. | 462 // Returns the logical offset at the top of the next page, for a given offse
t. |
476 // | 463 // |
477 // If the given offset is at a page boundary, using AssociateWithLatterPage
as PageBoundaryRule | 464 // If the given offset is at a page boundary, using AssociateWithLatterPage
as PageBoundaryRule |
478 // will move us one page ahead (since the offset is at the top of the "curre
nt" page). Using | 465 // will move us one page ahead (since the offset is at the top of the "curre
nt" page). Using |
479 // AssociateWithFormerPage instead will keep us where we are (since the offs
et is at the bottom | 466 // AssociateWithFormerPage instead will keep us where we are (since the offs
et is at the bottom |
480 // of the "current" page, which is exactly the same offset as the top offset
on the next page). | 467 // of the "current" page, which is exactly the same offset as the top offset
on the next page). |
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519 // FIXME: This is temporary as we move code that accesses block flow | 506 // FIXME: This is temporary as we move code that accesses block flow |
520 // member variables out of LayoutBlock and into LayoutBlockFlow. | 507 // member variables out of LayoutBlock and into LayoutBlockFlow. |
521 friend class LayoutBlockFlow; | 508 friend class LayoutBlockFlow; |
522 }; | 509 }; |
523 | 510 |
524 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutBlock, isLayoutBlock()); | 511 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutBlock, isLayoutBlock()); |
525 | 512 |
526 } // namespace blink | 513 } // namespace blink |
527 | 514 |
528 #endif // LayoutBlock_h | 515 #endif // LayoutBlock_h |
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