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124 lines
4.5 KiB
C++
124 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla SVG project.
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*
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* The Initial Developer of the Original Code is
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* Crocodile Clips Ltd..
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* Portions created by the Initial Developer are Copyright (C) 2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Alex Fritze <alex.fritze@crocodile-clips.com> (original author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef NS_SVGTEXTFRAME_H
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#define NS_SVGTEXTFRAME_H
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#include "nsSVGTextContainerFrame.h"
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typedef nsSVGTextContainerFrame nsSVGTextFrameBase;
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class nsSVGTextFrame : public nsSVGTextFrameBase
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{
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friend nsIFrame*
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NS_NewSVGTextFrame(nsIPresShell* aPresShell, nsIContent* aContent, nsStyleContext* aContext);
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protected:
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nsSVGTextFrame(nsStyleContext* aContext)
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: nsSVGTextFrameBase(aContext),
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mMetricsState(unsuspended),
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mPositioningDirty(PR_TRUE) {}
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public:
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// nsIFrame:
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NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType);
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/**
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* Get the "type" of the frame
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*
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* @see nsGkAtoms::svgTextFrame
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*/
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virtual nsIAtom* GetType() const;
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const
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{
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return MakeFrameName(NS_LITERAL_STRING("SVGText"), aResult);
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}
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#endif
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// nsISVGChildFrame interface:
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NS_IMETHOD SetOverrideCTM(nsIDOMSVGMatrix *aCTM);
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virtual already_AddRefed<nsIDOMSVGMatrix> GetOverrideCTM();
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virtual void NotifySVGChanged(PRUint32 aFlags);
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NS_IMETHOD NotifyRedrawSuspended();
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NS_IMETHOD NotifyRedrawUnsuspended();
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// Override these four to ensure that UpdateGlyphPositioning is called
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// to bring glyph positions up to date
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NS_IMETHOD PaintSVG(nsSVGRenderState* aContext, nsIntRect *aDirtyRect);
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NS_IMETHOD_(nsIFrame*) GetFrameForPoint(const nsPoint & aPoint);
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NS_IMETHOD UpdateCoveredRegion();
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NS_IMETHOD InitialUpdate();
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NS_IMETHOD GetBBox(nsIDOMSVGRect **_retval);
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// nsSVGContainerFrame methods:
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virtual already_AddRefed<nsIDOMSVGMatrix> GetCanvasTM();
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// nsISVGTextContentMetrics
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NS_IMETHOD GetNumberOfChars(PRInt32 *_retval);
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NS_IMETHOD GetComputedTextLength(float *_retval);
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NS_IMETHOD GetSubStringLength(PRUint32 charnum, PRUint32 nchars, float *_retval);
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NS_IMETHOD GetStartPositionOfChar(PRUint32 charnum, nsIDOMSVGPoint **_retval);
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NS_IMETHOD GetEndPositionOfChar(PRUint32 charnum, nsIDOMSVGPoint **_retval);
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NS_IMETHOD GetExtentOfChar(PRUint32 charnum, nsIDOMSVGRect **_retval);
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NS_IMETHOD GetRotationOfChar(PRUint32 charnum, float *_retval);
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NS_IMETHOD GetCharNumAtPosition(nsIDOMSVGPoint *point, PRInt32 *_retval);
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// nsSVGTextFrame
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void NotifyGlyphMetricsChange();
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private:
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/**
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* @param aForceGlobalTransform passed down to nsSVGGlyphFrames to
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* control whether they should use the global transform even when
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* NS_STATE_NONDISPLAY_CHILD
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*/
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void UpdateGlyphPositioning(PRBool aForceGlobalTransform);
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nsCOMPtr<nsIDOMSVGMatrix> mCanvasTM;
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nsCOMPtr<nsIDOMSVGMatrix> mOverrideCTM;
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enum UpdateState { unsuspended, suspended };
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UpdateState mMetricsState;
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PRPackedBool mPositioningDirty;
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};
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#endif
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