1 /*
2 * Copyright (C) 2010 Alex Milowski (alex@milowski.com). 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 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
14 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
15 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
16 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
17 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
19 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #ifndef RenderMathMLBlock_h
27 #define RenderMathMLBlock_h
28
29 #if ENABLE(MATHML)
30
31 #include "RenderBlock.h"
32
33 #define ENABLE_DEBUG_MATH_LAYOUT 0
34
35 namespace WebCore {
36
37 class RenderMathMLBlock : public RenderBlock {
38 public:
39 RenderMathMLBlock(Node* container);
40 virtual bool isChildAllowed(RenderObject*, RenderStyle*) const;
41
isRenderMathMLBlock()42 virtual bool isRenderMathMLBlock() const { return true; }
isRenderMathMLOperator()43 virtual bool isRenderMathMLOperator() const { return false; }
isRenderMathMLRow()44 virtual bool isRenderMathMLRow() const { return false; }
isRenderMathMLMath()45 virtual bool isRenderMathMLMath() const { return false; }
hasBase()46 virtual bool hasBase() const { return false; }
47 virtual int nonOperatorHeight() const;
48 virtual void stretchToHeight(int height);
49
50 #if ENABLE(DEBUG_MATH_LAYOUT)
51 virtual void paint(PaintInfo&, int tx, int ty);
52 #endif
53
54 protected:
getBoxModelObjectHeight(RenderObject * object)55 int getBoxModelObjectHeight(RenderObject* object)
56 {
57 if (object && object->isBoxModelObject()) {
58 RenderBoxModelObject* box = toRenderBoxModelObject(object);
59 return box->offsetHeight();
60 }
61
62 return 0;
63 }
getBoxModelObjectHeight(const RenderObject * object)64 int getBoxModelObjectHeight(const RenderObject* object)
65 {
66 if (object && object->isBoxModelObject()) {
67 const RenderBoxModelObject* box = toRenderBoxModelObject(object);
68 return box->offsetHeight();
69 }
70
71 return 0;
72 }
getBoxModelObjectWidth(RenderObject * object)73 int getBoxModelObjectWidth(RenderObject* object)
74 {
75 if (object && object->isBoxModelObject()) {
76 RenderBoxModelObject* box = toRenderBoxModelObject(object);
77 return box->offsetWidth();
78 }
79
80 return 0;
81 }
getBoxModelObjectWidth(const RenderObject * object)82 int getBoxModelObjectWidth(const RenderObject* object)
83 {
84 if (object && object->isBoxModelObject()) {
85 const RenderBoxModelObject* box = toRenderBoxModelObject(object);
86 return box->offsetWidth();
87 }
88
89 return 0;
90 }
91 virtual PassRefPtr<RenderStyle> makeBlockStyle();
92
93 };
94
toRenderMathMLBlock(RenderObject * object)95 inline RenderMathMLBlock* toRenderMathMLBlock(RenderObject* object)
96 {
97 ASSERT(!object || object->isRenderMathMLBlock());
98 return static_cast<RenderMathMLBlock*>(object);
99 }
100
toRenderMathMLBlock(const RenderObject * object)101 inline const RenderMathMLBlock* toRenderMathMLBlock(const RenderObject* object)
102 {
103 ASSERT(!object || object->isRenderMathMLBlock());
104 return static_cast<const RenderMathMLBlock*>(object);
105 }
106
107 }
108
109
110 #endif // ENABLE(MATHML)
111 #endif // RenderMathMLBlock_h
112