1 : /* -*- Mode: C++; tab-width: 2; 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 the Mozilla SVG project.
16 : *
17 : * The Initial Developer of the Original Code is IBM Corporation.
18 : * Portions created by the Initial Developer are Copyright (C) 2005
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : *
23 : * Alternatively, the contents of this file may be used under the terms of
24 : * either of the GNU General Public License Version 2 or later (the "GPL"),
25 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
26 : * in which case the provisions of the GPL or the LGPL are applicable instead
27 : * of those above. If you wish to allow use of your version of this file only
28 : * under the terms of either the GPL or the LGPL, and not to allow others to
29 : * use your version of this file under the terms of the MPL, indicate your
30 : * decision by deleting the provisions above and replace them with the notice
31 : * and other provisions required by the GPL or the LGPL. If you do not delete
32 : * the provisions above, a recipient may use your version of this file under
33 : * the terms of any one of the MPL, the GPL or the LGPL.
34 : *
35 : * ***** END LICENSE BLOCK ***** */
36 :
37 : #ifndef __NS_SVGFILTERFRAME_H__
38 : #define __NS_SVGFILTERFRAME_H__
39 :
40 : #include "nsRect.h"
41 : #include "nsSVGContainerFrame.h"
42 :
43 : class nsRenderingContext;
44 : class nsSVGFilterPaintCallback;
45 :
46 : typedef nsSVGContainerFrame nsSVGFilterFrameBase;
47 : class nsSVGFilterFrame : public nsSVGFilterFrameBase
48 0 : {
49 : friend nsIFrame*
50 : NS_NewSVGFilterFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
51 : protected:
52 0 : nsSVGFilterFrame(nsStyleContext* aContext)
53 0 : : nsSVGFilterFrameBase(aContext)
54 : {
55 0 : AddStateBits(NS_STATE_SVG_NONDISPLAY_CHILD);
56 0 : }
57 :
58 : public:
59 : NS_DECL_FRAMEARENA_HELPERS
60 :
61 : NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
62 : nsIAtom* aAttribute,
63 : PRInt32 aModType);
64 :
65 : nsresult FilterPaint(nsRenderingContext *aContext,
66 : nsIFrame *aTarget, nsSVGFilterPaintCallback *aPaintCallback,
67 : const nsIntRect* aDirtyRect);
68 :
69 : /**
70 : * Returns the area that could change when the given rect of the source changes.
71 : * The rectangles are relative to the origin of the outer svg, if aTarget is SVG,
72 : * relative to aTarget itself otherwise, in device pixels.
73 : */
74 : nsIntRect GetInvalidationBBox(nsIFrame *aTarget, const nsIntRect& aRect);
75 :
76 : /**
77 : * Returns the area in device pixels that is needed from the source when
78 : * the given area needs to be repainted.
79 : * The rectangles are relative to the origin of the outer svg, if aTarget is SVG,
80 : * relative to aTarget itself otherwise, in device pixels.
81 : */
82 : nsIntRect GetSourceForInvalidArea(nsIFrame *aTarget, const nsIntRect& aRect);
83 :
84 : /**
85 : * Returns the bounding box of the post-filter area of aTarget.
86 : * The rectangles are relative to the origin of the outer svg, if aTarget is SVG,
87 : * relative to aTarget itself otherwise, in device pixels.
88 : * @param aSourceBBox overrides the normal bbox for the source, if non-null
89 : */
90 : nsIntRect GetFilterBBox(nsIFrame *aTarget, const nsIntRect *aSourceBBox);
91 :
92 : #ifdef DEBUG
93 : NS_IMETHOD Init(nsIContent* aContent,
94 : nsIFrame* aParent,
95 : nsIFrame* aPrevInFlow);
96 : #endif
97 :
98 : /**
99 : * Get the "type" of the frame
100 : *
101 : * @see nsGkAtoms::svgFilterFrame
102 : */
103 : virtual nsIAtom* GetType() const;
104 : };
105 :
106 : #endif
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