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 "platform/graphics/GraphicsContext.h"
31 #include "platform/scroll/Scrollbar.h"
32 #include "platform/scroll/ScrollbarTheme.h"
33 #include "public/platform/WebRect.h"
34
35 using namespace WebCore;
36
37 namespace blink {
38
assign(const WebScrollbarThemePainter & painter)39 void 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
paintScrollbarBackground(WebCanvas * canvas,const WebRect & rect)46 void 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
paintTrackBackground(WebCanvas * canvas,const WebRect & rect)56 void 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
paintBackTrackPart(WebCanvas * canvas,const WebRect & rect)63 void 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
paintForwardTrackPart(WebCanvas * canvas,const WebRect & rect)70 void 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
paintBackButtonStart(WebCanvas * canvas,const WebRect & rect)77 void 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
paintBackButtonEnd(WebCanvas * canvas,const WebRect & rect)84 void 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
paintForwardButtonStart(WebCanvas * canvas,const WebRect & rect)91 void 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
paintForwardButtonEnd(WebCanvas * canvas,const WebRect & rect)98 void 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
paintTickmarks(WebCanvas * canvas,const WebRect & rect)105 void 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
paintThumb(WebCanvas * canvas,const WebRect & rect)112 void 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
WebScrollbarThemePainter(WebCore::ScrollbarTheme * theme,WebCore::Scrollbar * scrollbar)119 WebScrollbarThemePainter::WebScrollbarThemePainter(WebCore::ScrollbarTheme* theme, WebCore::Scrollbar* scrollbar)
120 : m_theme(theme)
121 , m_scrollbar(scrollbar)
122 {
123 }
124
125 } // namespace blink
126