1/*
2 * Copyright (C) 2012 Google 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 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27
28#include "public/platform/WebScrollbarThemePainter.h"
29
30#include "core/platform/Scrollbar.h"
31#include "core/platform/ScrollbarTheme.h"
32#include "core/platform/graphics/GraphicsContext.h"
33#include "public/platform/WebRect.h"
34
35using namespace WebCore;
36
37namespace WebKit {
38
39void WebScrollbarThemePainter::assign(const WebScrollbarThemePainter& painter)
40{
41    // This is a pointer to a static object, so no ownership transferral.
42    m_theme = painter.m_theme;
43    m_scrollbar = painter.m_scrollbar;
44}
45
46void WebScrollbarThemePainter::paintScrollbarBackground(WebCanvas* canvas, const WebRect& rect)
47{
48    SkRect clip = SkRect::MakeXYWH(rect.x, rect.y, rect.width, rect.height);
49    canvas->clipRect(clip);
50
51    GraphicsContext context(canvas);
52    context.setCertainlyOpaque(false);
53    m_theme->paintScrollbarBackground(&context, m_scrollbar);
54}
55
56void WebScrollbarThemePainter::paintTrackBackground(WebCanvas* canvas, const WebRect& rect)
57{
58    GraphicsContext context(canvas);
59    context.setCertainlyOpaque(false);
60    m_theme->paintTrackBackground(&context, m_scrollbar, IntRect(rect));
61}
62
63void WebScrollbarThemePainter::paintBackTrackPart(WebCanvas* canvas, const WebRect& rect)
64{
65    GraphicsContext context(canvas);
66    context.setCertainlyOpaque(false);
67    m_theme->paintTrackPiece(&context, m_scrollbar, IntRect(rect), WebCore::BackTrackPart);
68}
69
70void WebScrollbarThemePainter::paintForwardTrackPart(WebCanvas* canvas, const WebRect& rect)
71{
72    GraphicsContext context(canvas);
73    context.setCertainlyOpaque(false);
74    m_theme->paintTrackPiece(&context, m_scrollbar, IntRect(rect), WebCore::ForwardTrackPart);
75}
76
77void WebScrollbarThemePainter::paintBackButtonStart(WebCanvas* canvas, const WebRect& rect)
78{
79    GraphicsContext context(canvas);
80    context.setCertainlyOpaque(false);
81    m_theme->paintButton(&context, m_scrollbar, IntRect(rect), WebCore::BackButtonStartPart);
82}
83
84void WebScrollbarThemePainter::paintBackButtonEnd(WebCanvas* canvas, const WebRect& rect)
85{
86    GraphicsContext context(canvas);
87    context.setCertainlyOpaque(false);
88    m_theme->paintButton(&context, m_scrollbar, IntRect(rect), WebCore::BackButtonEndPart);
89}
90
91void WebScrollbarThemePainter::paintForwardButtonStart(WebCanvas* canvas, const WebRect& rect)
92{
93    GraphicsContext context(canvas);
94    context.setCertainlyOpaque(false);
95    m_theme->paintButton(&context, m_scrollbar, IntRect(rect), WebCore::ForwardButtonStartPart);
96}
97
98void WebScrollbarThemePainter::paintForwardButtonEnd(WebCanvas* canvas, const WebRect& rect)
99{
100    GraphicsContext context(canvas);
101    context.setCertainlyOpaque(false);
102    m_theme->paintButton(&context, m_scrollbar, IntRect(rect), WebCore::ForwardButtonEndPart);
103}
104
105void WebScrollbarThemePainter::paintTickmarks(WebCanvas* canvas, const WebRect& rect)
106{
107    GraphicsContext context(canvas);
108    context.setCertainlyOpaque(false);
109    m_theme->paintTickmarks(&context, m_scrollbar, IntRect(rect));
110}
111
112void WebScrollbarThemePainter::paintThumb(WebCanvas* canvas, const WebRect& rect)
113{
114    GraphicsContext context(canvas);
115    context.setCertainlyOpaque(false);
116    m_theme->paintThumb(&context, m_scrollbar, IntRect(rect));
117}
118
119WebScrollbarThemePainter::WebScrollbarThemePainter(WebCore::ScrollbarTheme* theme, WebCore::Scrollbar* scrollbar)
120    : m_theme(theme)
121    , m_scrollbar(scrollbar)
122{
123}
124
125} // namespace WebKit
126