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
18 : * Crocodile Clips Ltd..
19 : * Portions created by the Initial Developer are Copyright (C) 2002
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Alex Fritze <alex.fritze@crocodile-clips.com> (original author)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either of the GNU General Public License Version 2 or later (the "GPL"),
27 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
30 : * under the terms of either the GPL or the LGPL, and not to allow others to
31 : * use your version of this file under the terms of the MPL, indicate your
32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #ifndef NS_SVGTEXTFRAME_H
40 : #define NS_SVGTEXTFRAME_H
41 :
42 : #include "nsSVGTextContainerFrame.h"
43 : #include "gfxRect.h"
44 : #include "gfxMatrix.h"
45 :
46 : class nsRenderingContext;
47 :
48 : typedef nsSVGTextContainerFrame nsSVGTextFrameBase;
49 :
50 : class nsSVGTextFrame : public nsSVGTextFrameBase
51 0 : {
52 : friend nsIFrame*
53 : NS_NewSVGTextFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
54 : protected:
55 0 : nsSVGTextFrame(nsStyleContext* aContext)
56 : : nsSVGTextFrameBase(aContext),
57 0 : mPositioningDirty(true) {}
58 :
59 : public:
60 : NS_DECL_FRAMEARENA_HELPERS
61 :
62 : // nsIFrame:
63 : #ifdef DEBUG
64 : NS_IMETHOD Init(nsIContent* aContent,
65 : nsIFrame* aParent,
66 : nsIFrame* aPrevInFlow);
67 : #endif
68 :
69 : NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
70 : nsIAtom* aAttribute,
71 : PRInt32 aModType);
72 :
73 : /**
74 : * Get the "type" of the frame
75 : *
76 : * @see nsGkAtoms::svgTextFrame
77 : */
78 : virtual nsIAtom* GetType() const;
79 :
80 : #ifdef DEBUG
81 0 : NS_IMETHOD GetFrameName(nsAString& aResult) const
82 : {
83 0 : return MakeFrameName(NS_LITERAL_STRING("SVGText"), aResult);
84 : }
85 : #endif
86 :
87 : // nsISVGChildFrame interface:
88 : virtual void NotifySVGChanged(PRUint32 aFlags);
89 : virtual void NotifyRedrawUnsuspended();
90 : // Override these four to ensure that UpdateGlyphPositioning is called
91 : // to bring glyph positions up to date
92 : NS_IMETHOD PaintSVG(nsRenderingContext* aContext,
93 : const nsIntRect *aDirtyRect);
94 : NS_IMETHOD_(nsIFrame*) GetFrameForPoint(const nsPoint & aPoint);
95 : NS_IMETHOD UpdateCoveredRegion();
96 : NS_IMETHOD InitialUpdate();
97 : virtual gfxRect GetBBoxContribution(const gfxMatrix &aToBBoxUserspace,
98 : PRUint32 aFlags);
99 :
100 : // nsSVGContainerFrame methods:
101 : virtual gfxMatrix GetCanvasTM();
102 :
103 : // nsSVGTextContainerFrame methods:
104 : virtual PRUint32 GetNumberOfChars();
105 : virtual float GetComputedTextLength();
106 : virtual float GetSubStringLength(PRUint32 charnum, PRUint32 nchars);
107 : virtual PRInt32 GetCharNumAtPosition(nsIDOMSVGPoint *point);
108 :
109 : NS_IMETHOD GetStartPositionOfChar(PRUint32 charnum, nsIDOMSVGPoint **_retval);
110 : NS_IMETHOD GetEndPositionOfChar(PRUint32 charnum, nsIDOMSVGPoint **_retval);
111 : NS_IMETHOD GetExtentOfChar(PRUint32 charnum, nsIDOMSVGRect **_retval);
112 : NS_IMETHOD GetRotationOfChar(PRUint32 charnum, float *_retval);
113 :
114 : // nsSVGTextFrame
115 : void NotifyGlyphMetricsChange();
116 :
117 : private:
118 : /**
119 : * @param aForceGlobalTransform passed down to nsSVGGlyphFrames to
120 : * control whether they should use the global transform even when
121 : * NS_STATE_NONDISPLAY_CHILD
122 : */
123 : void UpdateGlyphPositioning(bool aForceGlobalTransform);
124 :
125 : void SetWhitespaceHandling(nsSVGGlyphFrame *aFrame);
126 :
127 : nsAutoPtr<gfxMatrix> mCanvasTM;
128 :
129 : bool mPositioningDirty;
130 : };
131 :
132 : #endif
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