1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef RenderScrollbarPart_h
#define RenderScrollbarPart_h
#include "RenderBlock.h"
#include "ScrollTypes.h"
namespace WebCore {
class RenderScrollbar;
class RenderScrollbarPart : public RenderBlock {
public:
RenderScrollbarPart(Node*, RenderScrollbar* = 0, ScrollbarPart = NoPart);
virtual ~RenderScrollbarPart();
virtual const char* renderName() const { return "RenderScrollbarPart"; }
virtual bool requiresLayer() const { return false; }
virtual void layout();
virtual void computePreferredLogicalWidths();
void paintIntoRect(GraphicsContext*, int tx, int ty, const IntRect&);
protected:
virtual void styleWillChange(StyleDifference diff, const RenderStyle* newStyle);
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
virtual void imageChanged(WrappedImagePtr, const IntRect* = 0);
private:
void layoutHorizontalPart();
void layoutVerticalPart();
void computeScrollbarWidth();
void computeScrollbarHeight();
RenderScrollbar* m_scrollbar;
ScrollbarPart m_part;
};
} // namespace WebCore
#endif // RenderScrollbarPart_h
|
