1 : /* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Vladimir Vukicevic <vladimir@pobox.com>
19 : * Portions created by the Initial Developer are Copyright (C) 2005
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either the GNU General Public License Version 2 or later (the "GPL"), or
26 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
28 : * of those above. If you wish to allow use of your version of this file only
29 : * under the terms of either the GPL or the LGPL, and not to allow others to
30 : * use your version of this file under the terms of the MPL, indicate your
31 : * decision by deleting the provisions above and replace them with the notice
32 : * and other provisions required by the GPL or the LGPL. If you do not delete
33 : * the provisions above, a recipient may use your version of this file under
34 : * the terms of any one of the MPL, the GPL or the LGPL.
35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #ifndef nsICanvasElementExternal_h___
39 : #define nsICanvasElementExternal_h___
40 :
41 : #include "nsISupports.h"
42 : #include "gfxPattern.h"
43 :
44 : class gfxContext;
45 : class nsIFrame;
46 : struct gfxRect;
47 :
48 : #define NS_ICANVASELEMENTEXTERNAL_IID \
49 : { 0x51870f54, 0x6c4c, 0x469a, {0xad, 0x46, 0xf0, 0xa9, 0x8e, 0x32, 0xa7, 0xe2 } }
50 :
51 : class nsRenderingContext;
52 : class nsICanvasRenderingContextInternal;
53 :
54 : struct _cairo_surface;
55 :
56 : /*
57 : * This interface contains methods that are needed outside of the content/layout
58 : * modules, specifically widget. It should eventually go away when we support
59 : * libxul builds, and nsHTMLCanvasElement be used directly.
60 : *
61 : * Code internal to content/layout should /never/ use this interface; if the
62 : * same functionality is needed in both places, two separate methods should be
63 : * used.
64 : */
65 :
66 0 : class nsICanvasElementExternal : public nsISupports {
67 : public:
68 : NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICANVASELEMENTEXTERNAL_IID)
69 :
70 : /**
71 : * Get the size in pixels of this canvas element
72 : */
73 : NS_IMETHOD_(nsIntSize) GetSizeExternal() = 0;
74 :
75 : /*
76 : * Ask the canvas element to tell the contexts to render themselves
77 : * to the given gfxContext at the origin of its coordinate space.
78 : */
79 : NS_IMETHOD RenderContextsExternal(gfxContext *ctx,
80 : gfxPattern::GraphicsFilter aFilter) = 0;
81 : };
82 :
83 : NS_DEFINE_STATIC_IID_ACCESSOR(nsICanvasElementExternal, NS_ICANVASELEMENTEXTERNAL_IID)
84 :
85 : #endif /* nsICanvasElementExternal_h___ */
|