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 namespace blink {
36
assign(const WebScrollbarThemePainter & painter)37 void WebScrollbarThemePainter::assign(const WebScrollbarThemePainter& painter)
38 {
39 // This is a pointer to a static object, so no ownership transferral.
40 m_theme = painter.m_theme;
41 m_scrollbar = painter.m_scrollbar;
42 }
43
paintScrollbarBackground(WebCanvas * canvas,const WebRect & rect)44 void WebScrollbarThemePainter::paintScrollbarBackground(WebCanvas* canvas, const WebRect& rect)
45 {
46 SkRect clip = SkRect::MakeXYWH(rect.x, rect.y, rect.width, rect.height);
47 canvas->clipRect(clip);
48
49 GraphicsContext context(canvas);
50 context.setCertainlyOpaque(false);
51 m_theme->paintScrollbarBackground(&context, m_scrollbar);
52 }
53
paintTrackBackground(WebCanvas * canvas,const WebRect & rect)54 void WebScrollbarThemePainter::paintTrackBackground(WebCanvas* canvas, const WebRect& rect)
55 {
56 GraphicsContext context(canvas);
57 context.setCertainlyOpaque(false);
58 m_theme->paintTrackBackground(&context, m_scrollbar, IntRect(rect));
59 }
60
paintBackTrackPart(WebCanvas * canvas,const WebRect & rect)61 void WebScrollbarThemePainter::paintBackTrackPart(WebCanvas* canvas, const WebRect& rect)
62 {
63 GraphicsContext context(canvas);
64 context.setCertainlyOpaque(false);
65 m_theme->paintTrackPiece(&context, m_scrollbar, IntRect(rect), BackTrackPart);
66 }
67
paintForwardTrackPart(WebCanvas * canvas,const WebRect & rect)68 void WebScrollbarThemePainter::paintForwardTrackPart(WebCanvas* canvas, const WebRect& rect)
69 {
70 GraphicsContext context(canvas);
71 context.setCertainlyOpaque(false);
72 m_theme->paintTrackPiece(&context, m_scrollbar, IntRect(rect), ForwardTrackPart);
73 }
74
paintBackButtonStart(WebCanvas * canvas,const WebRect & rect)75 void WebScrollbarThemePainter::paintBackButtonStart(WebCanvas* canvas, const WebRect& rect)
76 {
77 GraphicsContext context(canvas);
78 context.setCertainlyOpaque(false);
79 m_theme->paintButton(&context, m_scrollbar, IntRect(rect), BackButtonStartPart);
80 }
81
paintBackButtonEnd(WebCanvas * canvas,const WebRect & rect)82 void WebScrollbarThemePainter::paintBackButtonEnd(WebCanvas* canvas, const WebRect& rect)
83 {
84 GraphicsContext context(canvas);
85 context.setCertainlyOpaque(false);
86 m_theme->paintButton(&context, m_scrollbar, IntRect(rect), BackButtonEndPart);
87 }
88
paintForwardButtonStart(WebCanvas * canvas,const WebRect & rect)89 void WebScrollbarThemePainter::paintForwardButtonStart(WebCanvas* canvas, const WebRect& rect)
90 {
91 GraphicsContext context(canvas);
92 context.setCertainlyOpaque(false);
93 m_theme->paintButton(&context, m_scrollbar, IntRect(rect), ForwardButtonStartPart);
94 }
95
paintForwardButtonEnd(WebCanvas * canvas,const WebRect & rect)96 void WebScrollbarThemePainter::paintForwardButtonEnd(WebCanvas* canvas, const WebRect& rect)
97 {
98 GraphicsContext context(canvas);
99 context.setCertainlyOpaque(false);
100 m_theme->paintButton(&context, m_scrollbar, IntRect(rect), ForwardButtonEndPart);
101 }
102
paintTickmarks(WebCanvas * canvas,const WebRect & rect)103 void WebScrollbarThemePainter::paintTickmarks(WebCanvas* canvas, const WebRect& rect)
104 {
105 GraphicsContext context(canvas);
106 context.setCertainlyOpaque(false);
107 m_theme->paintTickmarks(&context, m_scrollbar, IntRect(rect));
108 }
109
paintThumb(WebCanvas * canvas,const WebRect & rect)110 void WebScrollbarThemePainter::paintThumb(WebCanvas* canvas, const WebRect& rect)
111 {
112 GraphicsContext context(canvas);
113 context.setCertainlyOpaque(false);
114 m_theme->paintThumb(&context, m_scrollbar, IntRect(rect));
115 }
116
WebScrollbarThemePainter(ScrollbarTheme * theme,Scrollbar * scrollbar)117 WebScrollbarThemePainter::WebScrollbarThemePainter(ScrollbarTheme* theme, Scrollbar* scrollbar)
118 : m_theme(theme)
119 , m_scrollbar(scrollbar)
120 {
121 }
122
123 } // namespace blink
124