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 NSSVGTEXTPATHFRAME_H
38 : #define NSSVGTEXTPATHFRAME_H
39 :
40 : #include "nsSVGTSpanFrame.h"
41 : #include "SVGLengthList.h"
42 :
43 : namespace mozilla {
44 : class SVGNumberList;
45 : }
46 :
47 : typedef nsSVGTSpanFrame nsSVGTextPathFrameBase;
48 :
49 : class nsSVGTextPathFrame : public nsSVGTextPathFrameBase
50 0 : {
51 : friend nsIFrame*
52 : NS_NewSVGTextPathFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
53 : protected:
54 0 : nsSVGTextPathFrame(nsStyleContext* aContext) : nsSVGTextPathFrameBase(aContext) {}
55 :
56 : public:
57 : NS_DECL_FRAMEARENA_HELPERS
58 :
59 : // nsIFrame:
60 : #ifdef DEBUG
61 : NS_IMETHOD Init(nsIContent* aContent,
62 : nsIFrame* aParent,
63 : nsIFrame* aPrevInFlow);
64 : #endif
65 :
66 : NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
67 : nsIAtom* aAttribute,
68 : PRInt32 aModType);
69 : /**
70 : * Get the "type" of the frame
71 : *
72 : * @see nsGkAtoms::svgGFrame
73 : */
74 : virtual nsIAtom* GetType() const;
75 :
76 : #ifdef DEBUG
77 0 : NS_IMETHOD GetFrameName(nsAString& aResult) const
78 : {
79 0 : return MakeFrameName(NS_LITERAL_STRING("SVGTextPath"), aResult);
80 : }
81 : #endif
82 :
83 : // nsSVGTextPathFrame methods:
84 : already_AddRefed<gfxFlattenedPath> GetFlattenedPath();
85 : nsIFrame *GetPathFrame();
86 :
87 : /**
88 : * Gets the scale by which offsets along this textPath must be scaled. This
89 : * scaling is due to the user provided 'pathLength' attribute on the <path>
90 : * element, which is a user provided estimate of the path length.
91 : */
92 : gfxFloat GetOffsetScale();
93 :
94 : /**
95 : * Gets the offset from the start of the path at which the first character
96 : * should be positioned. The value returned already takes GetOffsetScale
97 : * into account.
98 : */
99 : gfxFloat GetStartOffset();
100 :
101 : protected:
102 :
103 : virtual void GetXY(SVGUserUnitList *aX, SVGUserUnitList *aY);
104 : virtual void GetDxDy(SVGUserUnitList *aDx, SVGUserUnitList *aDy);
105 : virtual const SVGNumberList *GetRotate();
106 : };
107 :
108 : #endif
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