1/*
2 * Copyright (C) 2010 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31// This implements the WebThemeEngine API used by the Windows version of
32// Chromium to render native form controls like checkboxes, radio buttons,
33// and scroll bars.
34// The normal implementation (native_theme) renders the controls using either
35// the UXTheme theming engine present in XP, Vista, and Win 7, or the "classic"
36// theme used if that theme is selected in the Desktop settings.
37// Unfortunately, both of these themes render controls differently on the
38// different versions of Windows.
39//
40// In order to ensure maximum consistency of baselines across the different
41// Windows versions, we provide a simple implementation for DRT here
42// instead. These controls are actually platform-independent (they're rendered
43// using Skia) and could be used on Linux and the Mac as well, should we
44// choose to do so at some point.
45//
46
47#ifndef WebThemeEngineDRTWin_h
48#define WebThemeEngineDRTWin_h
49
50#include "win/WebThemeEngine.h"
51#include <wtf/Noncopyable.h>
52
53class WebThemeEngineDRTWin : public WebKit::WebThemeEngine {
54    WTF_MAKE_NONCOPYABLE(WebThemeEngineDRTWin);
55public:
56    WebThemeEngineDRTWin() {}
57
58    // WebThemeEngine methods:
59    virtual void paintButton(
60        WebKit::WebCanvas*, int part, int state, int classicState,
61        const WebKit::WebRect&);
62
63    virtual void paintMenuList(
64        WebKit::WebCanvas*, int part, int state, int classicState,
65        const WebKit::WebRect&);
66
67    virtual void paintScrollbarArrow(
68        WebKit::WebCanvas*, int state, int classicState,
69        const WebKit::WebRect&);
70
71    virtual void paintScrollbarThumb(
72        WebKit::WebCanvas*, int part, int state, int classicState,
73        const WebKit::WebRect&);
74
75    virtual void paintScrollbarTrack(
76        WebKit::WebCanvas*, int part, int state, int classicState,
77        const WebKit::WebRect&, const WebKit::WebRect& alignRect);
78
79    virtual void paintSpinButton(
80        WebKit::WebCanvas*, int part, int state, int classicState,
81        const WebKit::WebRect&);
82
83    virtual void paintTextField(
84        WebKit::WebCanvas*, int part, int state, int classicState,
85        const WebKit::WebRect&, WebKit::WebColor, bool fillContentArea,
86        bool drawEdges);
87
88    virtual void paintTrackbar(
89        WebKit::WebCanvas*, int part, int state, int classicState,
90        const WebKit::WebRect&);
91
92    virtual void paintProgressBar(
93        WebKit::WebCanvas*, const WebKit::WebRect& barRect,
94        const WebKit::WebRect& valueRect,
95        bool determinate, double time);
96};
97
98#endif // WebThemeEngineDRTWin_h
99