1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
4 *           (C) 2007 David Smith (catfish.man@gmail.com)
5 * Copyright (C) 2003-2013 Apple Inc. All rights reserved.
6 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
7 * Copyright (C) 2013 Google Inc. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are
11 * met:
12 *
13 *     * Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *     * Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following disclaimer
17 * in the documentation and/or other materials provided with the
18 * distribution.
19 *     * Neither the name of Google Inc. nor the names of its
20 * contributors may be used to endorse or promote products derived from
21 * this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
36#ifndef TextRunConstructor_h
37#define TextRunConstructor_h
38
39#include "platform/text/TextDirection.h"
40#include "platform/text/TextRun.h"
41#include "wtf/text/WTFString.h"
42#include "wtf/unicode/Unicode.h"
43
44namespace blink {
45
46class Font;
47class RenderObject;
48class RenderStyle;
49class RenderText;
50
51enum TextRunFlag {
52    DefaultTextRunFlags = 0,
53    RespectDirection = 1 << 0,
54    RespectDirectionOverride = 1 << 1
55};
56
57typedef unsigned TextRunFlags;
58
59// Direction resolved from string value.
60TextRun constructTextRun(RenderObject* context, const Font&, const String&, RenderStyle*,
61    TextRun::ExpansionBehavior = TextRun::AllowTrailingExpansion | TextRun::ForbidLeadingExpansion, TextRunFlags = DefaultTextRunFlags);
62TextRun constructTextRun(RenderObject* context, const Font&, const RenderText*, unsigned offset, unsigned length, RenderStyle*,
63    TextRun::ExpansionBehavior = TextRun::AllowTrailingExpansion | TextRun::ForbidLeadingExpansion);
64
65// Explicit direction.
66TextRun constructTextRun(RenderObject* context, const Font&, const String&, RenderStyle*, TextDirection,
67    TextRun::ExpansionBehavior = TextRun::AllowTrailingExpansion | TextRun::ForbidLeadingExpansion, TextRunFlags = DefaultTextRunFlags);
68
69TextRun constructTextRun(RenderObject* context, const Font&, const RenderText*, RenderStyle*, TextDirection,
70    TextRun::ExpansionBehavior = TextRun::AllowTrailingExpansion | TextRun::ForbidLeadingExpansion);
71
72TextRun constructTextRun(RenderObject* context, const Font&, const RenderText*, unsigned offset, unsigned length, RenderStyle*, TextDirection,
73    TextRun::ExpansionBehavior = TextRun::AllowTrailingExpansion | TextRun::ForbidLeadingExpansion);
74
75TextRun constructTextRun(RenderObject* context, const Font&, const RenderText*, unsigned offset, RenderStyle*,
76    TextRun::ExpansionBehavior = TextRun::AllowTrailingExpansion | TextRun::ForbidLeadingExpansion);
77
78TextRun constructTextRun(RenderObject* context, const Font&, const LChar* characters, int length, RenderStyle*, TextDirection,
79    TextRun::ExpansionBehavior = TextRun::AllowTrailingExpansion | TextRun::ForbidLeadingExpansion);
80
81TextRun constructTextRun(RenderObject* context, const Font&, const UChar* characters, int length, RenderStyle*, TextDirection,
82    TextRun::ExpansionBehavior = TextRun::AllowTrailingExpansion | TextRun::ForbidLeadingExpansion);
83
84} // namespace blink
85
86#endif
87