Home | History | Annotate | Download | only in web 
      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 
     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 
     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 
     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 
     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 
     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 
     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 
     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 
     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 
     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 
    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 
    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 
    117 WebScrollbarThemePainter::WebScrollbarThemePainter(ScrollbarTheme* theme, Scrollbar* scrollbar)
    118     : m_theme(theme)
    119     , m_scrollbar(scrollbar)
    120 {
    121 }
    122 
    123 } // namespace blink
    124