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Bug 593604. Part 1: Add gfxTeeSurface. r=jrmuizel,a=blocking

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This commit is contained in:
Robert O'Callahan 2011-01-03 14:48:08 +13:00
parent ef18a76a76
commit 485f99439a
3 changed files with 138 additions and 0 deletions
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2
gfx/thebes/Makefile.in
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@ -32,6 +32,7 @@ EXPORTS = \
gfxPoint.h \
gfxRect.h \
gfxSkipChars.h \
gfxTeeSurface.h \
gfxTypes.h \
gfxTextRunCache.h \
gfxTextRunWordCache.h \
@ -181,6 +182,7 @@ CPPSRCS = \
gfxPlatformFontList.cpp \
gfxRect.cpp \
gfxSkipChars.cpp \
gfxTeeSurface.cpp \
gfxTextRunCache.cpp \
gfxTextRunWordCache.cpp \
gfxUserFontSet.cpp \

77
gfx/thebes/gfxTeeSurface.cpp Normal file
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@ -0,0 +1,77 @@
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Thebes code.
*
* The Initial Developer of the Original Code is Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Robert O'Callahan <robert@ocallahan.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "gfxTeeSurface.h"
#include "cairo.h"
gfxTeeSurface::gfxTeeSurface(cairo_surface_t *csurf)
{
Init(csurf, PR_TRUE);
}
gfxTeeSurface::gfxTeeSurface(gfxASurface **aSurfaces, PRInt32 aSurfaceCount)
{
NS_ASSERTION(aSurfaceCount > 0, "Must have a least one surface");
cairo_surface_t *csurf = cairo_tee_surface_create(aSurfaces[0]->CairoSurface());
Init(csurf, PR_FALSE);
for (PRInt32 i = 1; i < aSurfaceCount; ++i) {
cairo_tee_surface_add(csurf, aSurfaces[i]->CairoSurface());
}
}
const gfxIntSize
gfxTeeSurface::GetSize() const
{
nsRefPtr<gfxASurface> master = Wrap(cairo_tee_surface_index(mSurface, 0));
return master->GetSize();
}
void
gfxTeeSurface::GetSurfaces(nsTArray<nsRefPtr<gfxASurface> >* aSurfaces)
{
for (PRInt32 i = 0; ; ++i) {
cairo_surface_t *csurf = cairo_tee_surface_index(mSurface, i);
if (cairo_surface_status(csurf))
break;
nsRefPtr<gfxASurface> *elem = aSurfaces->AppendElement();
if (!elem)
return;
*elem = Wrap(csurf);
}
}

59
gfx/thebes/gfxTeeSurface.h Normal file
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@ -0,0 +1,59 @@
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Thebes code.
*
* The Initial Developer of the Original Code is Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Robert O'Callahan <robert@ocallahan.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef GFX_TEESURFACE_H
#define GFX_TEESURFACE_H
#include "gfxASurface.h"
#include "nsTArray.h"
/**
* Wraps a cairo_tee_surface. The first surface in the surface list is the
* primary surface, which answers all surface queries (including size).
* All drawing is performed on all the surfaces.
*/
class THEBES_API gfxTeeSurface : public gfxASurface {
public:
gfxTeeSurface(cairo_surface_t *csurf);
gfxTeeSurface(gfxASurface **aSurfaces, PRInt32 aSurfaceCount);
virtual const gfxIntSize GetSize() const;
void GetSurfaces(nsTArray<nsRefPtr<gfxASurface> > *aSurfaces);
};
#endif /* GFX_TEESURFACE_H */