зеркало из https://github.com/mozilla/gecko-dev.git
Mostly working impl of font rendering impl with pango. Needs additional code. Not part of the default build.
This commit is contained in:
blizzard%redhat.com
Родитель
93ac8df487
Коммит
0e11df9e7e
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@ -0,0 +1,85 @@
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
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/* vim:expandtab:shiftwidth=4:tabstop=4:
|
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*/
|
||||
/* ***** 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 mozilla.org code.
|
||||
*
|
||||
* The Initial Developer of the Original Code is Christopher Blizzard
|
||||
* <blizzard@mozilla.org>. Portions created by the Initial Developer
|
||||
* are Copyright (C) 2004 the Initial Developer. All Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
*
|
||||
* 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 ***** */
|
||||
|
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#include "mozilla-decoder.h"
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G_DEFINE_TYPE (MozillaDecoder, mozilla_decoder, MOZILLA_TYPE_DECODER)
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static FcCharSet *mozilla_decoder_get_charset (PangoFcDecoder *decoder,
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PangoFcFont *fcfont);
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static PangoGlyph mozilla_decoder_get_glyph (PangoFcDecoder *decoder,
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PangoFcFont *fcfont,
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guint32 wc);
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void
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mozilla_decoder_init (MozillaDecoder *decoder)
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{
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}
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void
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mozilla_decoder_class_init (MozillaDecoderClass *klass)
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{
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/* GObjectClass *object_class = G_OBJECT_CLASS(klass); */
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PangoFcDecoderClass *parent_class = PANGO_FC_DECODER_CLASS (klass);
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/* object_class->finalize = test_finalize; */
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parent_class->get_charset = mozilla_decoder_get_charset;
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parent_class->get_glyph = mozilla_decoder_get_glyph;
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}
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MozillaDecoder *
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mozilla_decoder_new(void)
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{
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return (MozillaDecoder *)g_object_new (MOZILLA_TYPE_DECODER, NULL);
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}
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FcCharSet *
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mozilla_decoder_get_charset (PangoFcDecoder *decoder,
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PangoFcFont *fcfont)
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{
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return NULL;
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}
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PangoGlyph
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mozilla_decoder_get_glyph (PangoFcDecoder *decoder,
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PangoFcFont *fcfont,
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guint32 wc)
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{
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return 0;
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}
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@ -0,0 +1,72 @@
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:expandtab:shiftwidth=4:tabstop=4:
|
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*/
|
||||
/* ***** 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 mozilla.org code.
|
||||
*
|
||||
* The Initial Developer of the Original Code is Christopher Blizzard
|
||||
* <blizzard@mozilla.org>. Portions created by the Initial Developer
|
||||
* are Copyright (C) 2004 the Initial Developer. All Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
*
|
||||
* 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 ***** */
|
||||
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#ifndef _MOZILLA_DECODER_H
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#define _MOZILLA_DECODER_H
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#include <pango/pangofc-decoder.h>
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G_BEGIN_DECLS
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#define MOZILLA_TYPE_DECODER (mozilla_decoder_get_type())
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#define MOZILLA_DECODER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), MOZILLA_TYPE_DECODER, MozillaDecoder))
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#define MOZILLA_IS_DECODER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), MOZILLA_TYPE_DECODER))
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typedef struct _MozillaDecoder MozillaDecoder;
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typedef struct _MozillaDecoderClass MozillaDecoderClass;
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#define MOZILLA_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), MOZILLA_TYPE_DECODER, MozillaDecoderClass))
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#define MOZILLA_IS_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), MOZILLA_TYPE_DECODER))
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#define MOZILLA_DECODER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), MOZILLA_TYPE_DECODER, MozillaDecoderClass))
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struct _MozillaDecoder
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{
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PangoFcDecoder parent_instance;
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};
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struct _MozillaDecoderClass
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{
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PangoFcDecoderClass parent_class;
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};
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GType mozilla_decoder_get_type (void);
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MozillaDecoder *mozilla_decoder_new (void);
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G_END_DECLS
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#endif /*_MOZILLA_DECODER_H */
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Загрузить разницу
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@ -0,0 +1,266 @@
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
||||
/* vim:expandtab:shiftwidth=4:tabstop=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 mozilla.org code.
|
||||
*
|
||||
* The Initial Developer of the Original Code Christopher Blizzard
|
||||
* <blizzard@mozilla.org>. Portions created by the Initial Developer
|
||||
* are Copyright (C) 2002 the Initial Developer. All Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
*
|
||||
* 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 ***** */
|
||||
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#include "nsIFontMetrics.h"
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#include "nsIFontEnumerator.h"
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#include "nsCRT.h"
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#include "nsIAtom.h"
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#include "nsString.h"
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#include "nsVoidArray.h"
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#include "nsIFontMetricsGTK.h"
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#include <pango/pango.h>
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class nsFontMetricsPango : public nsIFontMetricsGTK
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{
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public:
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nsFontMetricsPango();
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virtual ~nsFontMetricsPango();
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NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
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// nsISupports
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NS_DECL_ISUPPORTS
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// nsIFontMetrics
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NS_IMETHOD Init (const nsFont& aFont, nsIAtom* aLangGroup,
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nsIDeviceContext *aContext);
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NS_IMETHOD Destroy();
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NS_IMETHOD GetFont (const nsFont *&aFont);
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NS_IMETHOD GetLangGroup (nsIAtom** aLangGroup);
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NS_IMETHOD GetFontHandle (nsFontHandle &aHandle);
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NS_IMETHOD GetXHeight (nscoord& aResult)
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{ aResult = mXHeight; return NS_OK; };
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NS_IMETHOD GetSuperscriptOffset (nscoord& aResult)
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{ aResult = mSuperscriptOffset;
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return NS_OK; };
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NS_IMETHOD GetSubscriptOffset (nscoord& aResult)
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{ aResult = mSubscriptOffset;
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return NS_OK; };
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NS_IMETHOD GetStrikeout (nscoord& aOffset, nscoord& aSize)
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{ aOffset = mStrikeoutOffset;
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aSize = mStrikeoutSize;
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return NS_OK; };
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NS_IMETHOD GetUnderline (nscoord& aOffset, nscoord& aSize)
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{ aOffset = mUnderlineOffset;
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aSize = mUnderlineSize;
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return NS_OK; };
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NS_IMETHOD GetHeight (nscoord &aHeight)
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{ aHeight = mMaxHeight;
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return NS_OK; };
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NS_IMETHOD GetNormalLineHeight (nscoord &aHeight)
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{ aHeight = mEmHeight + mLeading;
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return NS_OK; };
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NS_IMETHOD GetLeading (nscoord &aLeading)
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{ aLeading = mLeading;
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return NS_OK; };
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NS_IMETHOD GetEmHeight (nscoord &aHeight)
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{ aHeight = mEmHeight;
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return NS_OK; };
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NS_IMETHOD GetEmAscent (nscoord &aAscent)
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{ aAscent = mEmAscent;
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return NS_OK; };
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NS_IMETHOD GetEmDescent (nscoord &aDescent)
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{ aDescent = mEmDescent;
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return NS_OK; };
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NS_IMETHOD GetMaxHeight (nscoord &aHeight)
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{ aHeight = mMaxHeight;
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return NS_OK; };
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NS_IMETHOD GetMaxAscent (nscoord &aAscent)
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{ aAscent = mMaxAscent;
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return NS_OK; };
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NS_IMETHOD GetMaxDescent (nscoord &aDescent)
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{ aDescent = mMaxDescent;
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return NS_OK; };
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NS_IMETHOD GetMaxAdvance (nscoord &aAdvance)
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{ aAdvance = mMaxAdvance;
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return NS_OK; };
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NS_IMETHOD GetSpaceWidth (nscoord &aSpaceCharWidth)
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{ aSpaceCharWidth = mSpaceWidth;
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return NS_OK; };
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NS_IMETHOD GetAveCharWidth (nscoord &aAveCharWidth)
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{ aAveCharWidth = mAveCharWidth;
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return NS_OK; };
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// nsIFontMetricsGTK (calls from the font rendering layer)
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virtual nsresult GetWidth(const char* aString, PRUint32 aLength,
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nscoord& aWidth,
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nsRenderingContextGTK *aContext);
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virtual nsresult GetWidth(const PRUnichar* aString, PRUint32 aLength,
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nscoord& aWidth, PRInt32 *aFontID,
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nsRenderingContextGTK *aContext);
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virtual nsresult GetTextDimensions(const PRUnichar* aString,
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PRUint32 aLength,
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nsTextDimensions& aDimensions,
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PRInt32* aFontID,
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nsRenderingContextGTK *aContext);
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virtual nsresult GetTextDimensions(const char* aString,
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PRInt32 aLength,
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PRInt32 aAvailWidth,
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PRInt32* aBreaks,
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PRInt32 aNumBreaks,
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nsTextDimensions& aDimensions,
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PRInt32& aNumCharsFit,
|
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nsTextDimensions& aLastWordDimensions,
|
||||
PRInt32* aFontID,
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nsRenderingContextGTK *aContext);
|
||||
virtual nsresult GetTextDimensions(const PRUnichar* aString,
|
||||
PRInt32 aLength,
|
||||
PRInt32 aAvailWidth,
|
||||
PRInt32* aBreaks,
|
||||
PRInt32 aNumBreaks,
|
||||
nsTextDimensions& aDimensions,
|
||||
PRInt32& aNumCharsFit,
|
||||
nsTextDimensions& aLastWordDimensions,
|
||||
PRInt32* aFontID,
|
||||
nsRenderingContextGTK *aContext);
|
||||
|
||||
virtual nsresult DrawString(const char *aString, PRUint32 aLength,
|
||||
nscoord aX, nscoord aY,
|
||||
const nscoord* aSpacing,
|
||||
nsRenderingContextGTK *aContext,
|
||||
nsDrawingSurfaceGTK *aSurface);
|
||||
virtual nsresult DrawString(const PRUnichar* aString, PRUint32 aLength,
|
||||
nscoord aX, nscoord aY,
|
||||
PRInt32 aFontID,
|
||||
const nscoord* aSpacing,
|
||||
nsRenderingContextGTK *aContext,
|
||||
nsDrawingSurfaceGTK *aSurface);
|
||||
|
||||
#ifdef MOZ_MATHML
|
||||
virtual nsresult GetBoundingMetrics(const char *aString, PRUint32 aLength,
|
||||
nsBoundingMetrics &aBoundingMetrics,
|
||||
nsRenderingContextGTK *aContext);
|
||||
virtual nsresult GetBoundingMetrics(const PRUnichar *aString,
|
||||
PRUint32 aLength,
|
||||
nsBoundingMetrics &aBoundingMetrics,
|
||||
PRInt32 *aFontID,
|
||||
nsRenderingContextGTK *aContext);
|
||||
#endif /* MOZ_MATHML */
|
||||
|
||||
virtual GdkFont* GetCurrentGDKFont(void);
|
||||
|
||||
virtual nsresult SetRightToLeftText(PRBool aIsRTL);
|
||||
|
||||
// get hints for the font
|
||||
static PRUint32 GetHints (void);
|
||||
|
||||
// drawing surface methods
|
||||
static nsresult FamilyExists (nsIDeviceContext *aDevice,
|
||||
const nsString &aName);
|
||||
|
||||
private:
|
||||
|
||||
// generic font metrics class bits
|
||||
nsCStringArray mFontList;
|
||||
nsAutoVoidArray mFontIsGeneric;
|
||||
|
||||
nsIDeviceContext *mDeviceContext;
|
||||
nsCOMPtr<nsIAtom> mLangGroup;
|
||||
nsCString *mGenericFont;
|
||||
nsFont *mFont;
|
||||
float mPixelSize;
|
||||
|
||||
nsCAutoString mDefaultFont;
|
||||
|
||||
// Pango-related items
|
||||
PangoFontDescription *mPangoFontDesc;
|
||||
PangoContext *mPangoContext;
|
||||
PangoContext *mLTRPangoContext;
|
||||
PangoContext *mRTLPangoContext;
|
||||
PangoAttrList *mPangoAttrList;
|
||||
PRBool mIsRTL;
|
||||
|
||||
// Cached font metrics
|
||||
nscoord mXHeight;
|
||||
nscoord mSuperscriptOffset;
|
||||
nscoord mSubscriptOffset;
|
||||
nscoord mStrikeoutOffset;
|
||||
nscoord mStrikeoutSize;
|
||||
nscoord mUnderlineOffset;
|
||||
nscoord mUnderlineSize;
|
||||
nscoord mMaxHeight;
|
||||
nscoord mLeading;
|
||||
nscoord mEmHeight;
|
||||
nscoord mEmAscent;
|
||||
nscoord mEmDescent;
|
||||
nscoord mMaxAscent;
|
||||
nscoord mMaxDescent;
|
||||
nscoord mMaxAdvance;
|
||||
nscoord mSpaceWidth;
|
||||
nscoord mAveCharWidth;
|
||||
|
||||
// Private methods
|
||||
nsresult RealizeFont(void);
|
||||
nsresult CacheFontMetrics(void);
|
||||
|
||||
static PRBool EnumFontCallback(const nsString &aFamily,
|
||||
PRBool aIsGeneric, void *aData);
|
||||
|
||||
void DrawStringSlowly(const gchar *aText, PRUint32 aLength,
|
||||
GdkDrawable *aDrawable,
|
||||
GdkGC *aGC, gint aX, gint aY,
|
||||
PangoLayoutLine *aLine,
|
||||
const nscoord *aSpacing);
|
||||
};
|
||||
|
||||
class nsFontEnumeratorPango : public nsIFontEnumerator
|
||||
{
|
||||
public:
|
||||
nsFontEnumeratorPango();
|
||||
NS_DECL_ISUPPORTS
|
||||
NS_DECL_NSIFONTENUMERATOR
|
||||
};
|
||||
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