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gfx/graphite2/src/gr_features.cpp@b8a032363ba2 (annotated)

gfx/graphite2/src/gr_features.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/* GRAPHITE2 LICENSING
michael@0	2
michael@0	3	Copyright 2010, SIL International
michael@0	4	All rights reserved.
michael@0	5
michael@0	6	This library is free software; you can redistribute it and/or modify
michael@0	7	it under the terms of the GNU Lesser General Public License as published
michael@0	8	by the Free Software Foundation; either version 2.1 of License, or
michael@0	9	(at your option) any later version.
michael@0	10
michael@0	11	This program is distributed in the hope that it will be useful,
michael@0	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
michael@0	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
michael@0	14	Lesser General Public License for more details.
michael@0	15
michael@0	16	You should also have received a copy of the GNU Lesser General Public
michael@0	17	License along with this library in the file named "LICENSE".
michael@0	18	If not, write to the Free Software Foundation, 51 Franklin Street,
michael@0	19	Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
michael@0	20	internet at http://www.fsf.org/licenses/lgpl.html.
michael@0	21
michael@0	22	Alternatively, the contents of this file may be used under the terms of the
michael@0	23	Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
michael@0	24	License, as published by the Free Software Foundation, either version 2
michael@0	25	of the License or (at your option) any later version.
michael@0	26	*/
michael@0	27	#include "graphite2/Font.h"
michael@0	28	#include "inc/Face.h"
michael@0	29	#include "inc/FeatureMap.h"
michael@0	30	#include "inc/FeatureVal.h"
michael@0	31	#include "inc/NameTable.h"
michael@0	32
michael@0	33	using namespace graphite2;
michael@0	34
michael@0	35	extern "C" {
michael@0	36
michael@0	37
michael@0	38	gr_uint16 gr_fref_feature_value(const gr_feature_ref* pfeatureref, const gr_feature_val* feats) //returns 0 if either pointer is NULL
michael@0	39	{
michael@0	40	if (!pfeatureref || !feats) return 0;
michael@0	41
michael@0	42	return pfeatureref->getFeatureVal(*feats);
michael@0	43	}
michael@0	44
michael@0	45
michael@0	46	int gr_fref_set_feature_value(const gr_feature_ref* pfeatureref, gr_uint16 val, gr_feature_val* pDest)
michael@0	47	{
michael@0	48	if (!pfeatureref || !pDest) return 0;
michael@0	49
michael@0	50	return pfeatureref->applyValToFeature(val, *pDest);
michael@0	51	}
michael@0	52
michael@0	53
michael@0	54	gr_uint32 gr_fref_id(const gr_feature_ref* pfeatureref) //returns 0 if pointer is NULL
michael@0	55	{
michael@0	56	if (!pfeatureref)
michael@0	57	return 0;
michael@0	58
michael@0	59	return pfeatureref->getId();
michael@0	60	}
michael@0	61
michael@0	62
michael@0	63	gr_uint16 gr_fref_n_values(const gr_feature_ref* pfeatureref)
michael@0	64	{
michael@0	65	if(!pfeatureref)
michael@0	66	return 0;
michael@0	67	return pfeatureref->getNumSettings();
michael@0	68	}
michael@0	69
michael@0	70
michael@0	71	gr_int16 gr_fref_value(const gr_feature_ref* pfeatureref, gr_uint16 settingno)
michael@0	72	{
michael@0	73	if(!pfeatureref || (settingno >= pfeatureref->getNumSettings()))
michael@0	74	{
michael@0	75	return 0;
michael@0	76	}
michael@0	77	return pfeatureref->getSettingValue(settingno);
michael@0	78	}
michael@0	79
michael@0	80
michael@0	81	void* gr_fref_label(const gr_feature_ref* pfeatureref, gr_uint16 *langId, gr_encform utf, gr_uint32 *length)
michael@0	82	{
michael@0	83	if(!pfeatureref || !pfeatureref->getFace())
michael@0	84	{
michael@0	85	langId = 0;
michael@0	86	length = 0;
michael@0	87	return NULL;
michael@0	88	}
michael@0	89	uint16 label = pfeatureref->getNameId();
michael@0	90	NameTable * names = pfeatureref->getFace()->nameTable();
michael@0	91	if (!names)
michael@0	92	{
michael@0	93	langId = 0;
michael@0	94	length = 0;
michael@0	95	return NULL;
michael@0	96	}
michael@0	97	return names->getName(*langId, label, utf, *length);
michael@0	98	}
michael@0	99
michael@0	100
michael@0	101	void* gr_fref_value_label(const gr_feature_ref*pfeatureref, gr_uint16 setting,
michael@0	102	gr_uint16 *langId, gr_encform utf, gr_uint32 *length)
michael@0	103	{
michael@0	104	if(!pfeatureref || (setting >= pfeatureref->getNumSettings()) || !pfeatureref->getFace())
michael@0	105	{
michael@0	106	langId = 0;
michael@0	107	length = 0;
michael@0	108	return NULL;
michael@0	109	}
michael@0	110	uint16 label = pfeatureref->getSettingName(setting);
michael@0	111	NameTable * names = pfeatureref->getFace()->nameTable();
michael@0	112	if (!names)
michael@0	113	{
michael@0	114	langId = 0;
michael@0	115	length = 0;
michael@0	116	return NULL;
michael@0	117	}
michael@0	118	return names->getName(*langId, label, utf, *length);
michael@0	119	}
michael@0	120
michael@0	121
michael@0	122	void gr_label_destroy(void * label)
michael@0	123	{
michael@0	124	free(label);
michael@0	125	}
michael@0	126
michael@0	127	gr_feature_val* gr_featureval_clone(const gr_feature_val* pfeatures/*may be NULL*/)
michael@0	128	{ //When finished with the Features, call features_destroy
michael@0	129	return static_cast<gr_feature_val*>(pfeatures ? new Features(*pfeatures) : new Features);
michael@0	130	}
michael@0	131
michael@0	132	void gr_featureval_destroy(gr_feature_val *p)
michael@0	133	{
michael@0	134	delete p;
michael@0	135	}
michael@0	136
michael@0	137
michael@0	138	} // extern "C"