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94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
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/*
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* libInstPatch
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* Copyright (C) 1999-2014 Element Green <element@elementsofsound.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; version 2.1
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* of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA or on the web at http://www.gnu.org.
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*/
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#ifndef __IPATCH_RANGE_H__
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#define __IPATCH_RANGE_H__
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#include <glib.h>
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#include <glib-object.h>
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typedef struct _IpatchRange IpatchRange;
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typedef struct _IpatchParamSpecRange IpatchParamSpecRange;
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#define IPATCH_TYPE_RANGE (ipatch_range_get_type ())
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#define IPATCH_VALUE_HOLDS_RANGE(value) \
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(G_TYPE_CHECK_VALUE_TYPE ((value), IPATCH_TYPE_RANGE))
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/* integer range structure */
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struct _IpatchRange
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{
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int low; /* low endpoint of range or -1 if undefined */
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int high; /* high endpoint of range or -1 if undefined */
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};
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/* set range value making sure that are in the correct order */
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#define IPATCH_RANGE_SET_VALUES(range, val1, val2) G_STMT_START { \
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if (val1 <= val2) \
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{ \
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range.low = val1; \
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range.high = val2; \
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} \
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else \
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{ \
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range.low = val2; \
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range.high = val1; \
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} \
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} G_STMT_END
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/* set a range value to a NULL range (an undefined value) */
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#define IPATCH_RANGE_SET_NULL(range) G_STMT_START { \
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range.low = range.high = -1; \
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} G_STMT_END
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GType ipatch_range_get_type(void);
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IpatchRange *ipatch_range_new(int low, int high);
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IpatchRange *ipatch_range_copy(IpatchRange *range);
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void ipatch_range_free(IpatchRange *range);
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void ipatch_value_set_range(GValue *value, const IpatchRange *range);
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void ipatch_value_set_static_range(GValue *value, IpatchRange *range);
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IpatchRange *ipatch_value_get_range(const GValue *value);
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/* range parameter specification */
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#define IPATCH_TYPE_PARAM_RANGE (ipatch_param_spec_range_get_type ())
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#define IPATCH_IS_PARAM_SPEC_RANGE(pspec) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((pspec), IPATCH_TYPE_PARAM_RANGE))
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#define IPATCH_PARAM_SPEC_RANGE(pspec) \
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(G_TYPE_CHECK_INSTANCE_CAST ((pspec), IPATCH_TYPE_PARAM_RANGE, \
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IpatchParamSpecRange))
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/* a parameter specification for the integer range type */
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struct _IpatchParamSpecRange
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{
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GParamSpec parent_instance; /* derived from GParamSpec */
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int min, max; /* min and max values for range endpoints */
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int default_low, default_high; /* default vals for low and high endpoints */
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};
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GType ipatch_param_spec_range_get_type(void);
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GParamSpec *ipatch_param_spec_range(const char *name, const char *nick,
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const char *blurb,
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int min, int max,
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int default_low, int default_high,
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GParamFlags flags);
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#endif
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