1 /*
2 * Copyright (C) 2006, 2009 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "config.h"
30 #include "GlyphWidthMap.h"
31
32 namespace WebCore {
33
locatePageSlowCase(unsigned pageNumber)34 GlyphWidthMap::GlyphWidthPage* GlyphWidthMap::locatePageSlowCase(unsigned pageNumber)
35 {
36 GlyphWidthPage* page;
37 if (pageNumber == 0) {
38 ASSERT(!m_filledPrimaryPage);
39 page = &m_primaryPage;
40 m_filledPrimaryPage = true;
41 } else {
42 if (m_pages) {
43 if ((page = m_pages->get(pageNumber)))
44 return page;
45 } else
46 m_pages.set(new HashMap<int, GlyphWidthPage*>);
47 page = new GlyphWidthPage;
48 m_pages->set(pageNumber, page);
49 }
50
51 // Fill in the whole page with the unknown glyph width value.
52 for (unsigned i = 0; i < GlyphWidthPage::size; i++)
53 page->setWidthForIndex(i, cGlyphWidthUnknown);
54
55 return page;
56 }
57
58 }
59