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/*
* libInstPatch
* Copyright (C) 1999-2010 Joshua "Element" Green <jgreen@users.sourceforge.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; version 2.1
* of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA or on the web at http://www.gnu.org.
*
*/
#include <stdio.h>
#include <glib.h>
#include <glib-object.h>
#include "IpatchBase.h"
#include "IpatchParamProp.h"
#include "ipatch_priv.h"
enum {
PROP_0,
PROP_CHANGED,
PROP_SAVED,
PROP_FILENAME,
PROP_FILE
};
static void ipatch_base_finalize (GObject *gobject);
static void ipatch_base_set_property (GObject *object, guint property_id,
const GValue *value, GParamSpec *pspec);
static void ipatch_base_get_property (GObject *object, guint property_id,
GValue *value, GParamSpec *pspec);
static void ipatch_base_real_set_file (IpatchBase *base, IpatchFile *file);
static void ipatch_base_real_set_file_name (IpatchBase *base,
const char *file_name);
/* private var used by IpatchItem, for fast "changed" property notifies */
GParamSpec *ipatch_base_pspec_changed;
/* cached parameter specs to speed up prop notifies */
static GParamSpec *file_pspec;
static GParamSpec *file_name_pspec;
G_DEFINE_ABSTRACT_TYPE (IpatchBase, ipatch_base, IPATCH_TYPE_CONTAINER);
static void
ipatch_base_class_init (IpatchBaseClass *klass)
{
GObjectClass *obj_class = G_OBJECT_CLASS (klass);
IpatchItemClass *item_class = IPATCH_ITEM_CLASS (klass);
item_class->item_set_property = ipatch_base_set_property;
obj_class->get_property = ipatch_base_get_property;
obj_class->finalize = ipatch_base_finalize;
ipatch_base_pspec_changed =
g_param_spec_boolean ("changed", "Changed", "Changed Flag",
TRUE, G_PARAM_READWRITE | IPATCH_PARAM_NO_SAVE_CHANGE
| IPATCH_PARAM_NO_SAVE);
g_object_class_install_property (obj_class, PROP_CHANGED,
ipatch_base_pspec_changed);
g_object_class_install_property (obj_class, PROP_SAVED,
g_param_spec_boolean ("saved", "Saved", "Been Saved Flag",
FALSE, G_PARAM_READWRITE
| IPATCH_PARAM_NO_SAVE_CHANGE
| IPATCH_PARAM_NO_SAVE));
file_name_pspec = g_param_spec_string ("file-name", "File Name",
"File Name", "untitled",
G_PARAM_READWRITE
| IPATCH_PARAM_NO_SAVE_CHANGE);
g_object_class_install_property (obj_class, PROP_FILENAME, file_name_pspec);
file_pspec = g_param_spec_object ("file", "File", "File Object",
IPATCH_TYPE_FILE,
G_PARAM_READWRITE | IPATCH_PARAM_NO_SAVE
| IPATCH_PARAM_HIDE
| IPATCH_PARAM_NO_SAVE_CHANGE);
g_object_class_install_property (obj_class, PROP_FILE, file_pspec);
}
static void
ipatch_base_init (IpatchBase *base)
{
}
/* function called when a patch is being destroyed */
static void
ipatch_base_finalize (GObject *gobject)
{
IpatchBase *base = IPATCH_BASE (gobject);
IPATCH_ITEM_WLOCK (base);
if (base->file) g_object_unref (base->file);
base->file = NULL;
IPATCH_ITEM_WUNLOCK (base);
if (G_OBJECT_CLASS (ipatch_base_parent_class)->finalize)
G_OBJECT_CLASS (ipatch_base_parent_class)->finalize (gobject);
}
static void
ipatch_base_set_property (GObject *object, guint property_id,
const GValue *value, GParamSpec *pspec)
{
IpatchBase *base = IPATCH_BASE (object);
switch (property_id)
{
case PROP_CHANGED:
if (g_value_get_boolean (value))
ipatch_item_set_flags (IPATCH_ITEM (base), IPATCH_BASE_CHANGED);
else ipatch_item_clear_flags (IPATCH_ITEM (base), IPATCH_BASE_CHANGED);
break;
case PROP_SAVED:
if (g_value_get_boolean (value))
ipatch_item_set_flags (IPATCH_ITEM (base), IPATCH_BASE_SAVED);
else ipatch_item_clear_flags (IPATCH_ITEM (base), IPATCH_BASE_SAVED);
break;
case PROP_FILENAME:
ipatch_base_real_set_file_name (base, g_value_get_string (value));
break;
case PROP_FILE:
ipatch_base_real_set_file (base, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
ipatch_base_get_property (GObject *object, guint property_id,
GValue *value, GParamSpec *pspec)
{
IpatchBase *base;
g_return_if_fail (IPATCH_IS_BASE (object));
base = IPATCH_BASE (object);
switch (property_id)
{
case PROP_CHANGED:
g_value_set_boolean (value,
ipatch_item_get_flags (IPATCH_ITEM (base))
& IPATCH_BASE_CHANGED);
break;
case PROP_SAVED:
g_value_set_boolean (value,
ipatch_item_get_flags (IPATCH_ITEM (base))
& IPATCH_BASE_SAVED);
break;
case PROP_FILENAME:
g_value_take_string (value, ipatch_base_get_file_name (base));
break;
case PROP_FILE:
g_value_take_object (value, ipatch_base_get_file (base));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
/**
* ipatch_base_set_file:
* @base: Patch base object to set file object of
* @file: File object
*
* Sets the file object associated with a patch.
*/
void
ipatch_base_set_file (IpatchBase *base, IpatchFile *file)
{
GValue value = { 0 }, oldval = { 0 };
g_return_if_fail (IPATCH_IS_BASE (base));
g_return_if_fail (IPATCH_IS_FILE (file));
g_value_init (&value, IPATCH_TYPE_FILE);
g_value_set_object (&value, file);
ipatch_item_get_property_fast ((IpatchItem *)base, file_pspec, &oldval);
ipatch_base_real_set_file (base, file);
ipatch_item_prop_notify ((IpatchItem *)base, file_pspec, &value, &oldval);
g_value_unset (&value);
g_value_unset (&oldval);
}
static void
ipatch_base_real_set_file (IpatchBase *base, IpatchFile *file)
{
IPATCH_ITEM_WLOCK (base);
g_object_ref (file);
if (base->file) g_object_unref (base->file);
base->file = file;
IPATCH_ITEM_WUNLOCK (base);
}
/**
* ipatch_base_get_file:
* @base: Patch base object to get file object from
*
* Get the file object associated with a patch base object. Caller owns a
* reference to the returned file object and it should be unrefed when
* done with it.
*
* Returns: File object or %NULL if not set. Remember to unref it when done
* with it.
*/
IpatchFile *
ipatch_base_get_file (IpatchBase *base)
{
IpatchFile *file;
g_return_val_if_fail (IPATCH_IS_BASE (base), NULL);
IPATCH_ITEM_RLOCK (base);
file = base->file;
if (file) g_object_ref (file);
IPATCH_ITEM_RUNLOCK (base);
return (file);
}
/**
* ipatch_base_set_file_name:
* @base: Patch base object to set file name of
* @file_name: Path and name to set filename to
*
* Sets the file name of the file object in a patch base object. File object
* should have been set before calling this function (otherwise request is
* silently ignored). A convenience function as one could get the file object
* and set it directly.
*/
void
ipatch_base_set_file_name (IpatchBase *base, const char *file_name)
{
GValue value = { 0 }, oldval = { 0 };
g_return_if_fail (IPATCH_IS_BASE (base));
g_value_init (&value, G_TYPE_STRING);
g_value_set_string (&value, file_name);
ipatch_item_get_property_fast ((IpatchItem *)base, file_name_pspec, &oldval);
ipatch_base_real_set_file_name (base, file_name);
ipatch_item_prop_notify ((IpatchItem *)base, file_name_pspec, &value, &oldval);
g_value_unset (&value);
g_value_unset (&oldval);
}
/* the real set file name routine, user routine does a notify */
static void
ipatch_base_real_set_file_name (IpatchBase *base, const char *file_name)
{
IPATCH_ITEM_RLOCK (base);
if (!base->file) /* silently fail */
{
IPATCH_ITEM_RUNLOCK (base);
return;
}
ipatch_file_set_name (base->file, file_name);
IPATCH_ITEM_WUNLOCK (base);
}
/**
* ipatch_base_get_file_name:
* @base: Base patch item to get file name from.
*
* Get the file name of the file object in a base patch item. A convenience
* function.
*
* Returns: New allocated file name or %NULL if not set or file object
* not set. String should be freed when finished with it.
*/
char *
ipatch_base_get_file_name (IpatchBase *base)
{
char *file_name = NULL;
g_return_val_if_fail (IPATCH_IS_BASE (base), NULL);
IPATCH_ITEM_RLOCK (base);
if (base->file)
file_name = ipatch_file_get_name (base->file);
IPATCH_ITEM_RUNLOCK (base);
return (file_name);
}
/**
* ipatch_base_find_unused_midi_locale:
* @base: Patch base object
* @bank: MIDI bank number (input and output parameter)
* @program: MIDI program number (input and output parameter)
* @exclude: Child of @base with MIDI locale to exclude or %NULL
* @percussion: Set to %TRUE to find a free percussion MIDI locale
*
* Finds an unused MIDI locale (bank:program number pair) in a patch
* base object. The way in which MIDI bank and program numbers are
* used is implementation dependent. Percussion instruments often
* affect the bank parameter (for example SoundFont uses bank 128 for
* percussion presets). On input the @bank and @program parameters
* set the initial locale to start from (set to 0:0 to find the first
* free value). If the @percussion parameter is set it may affect
* @bank, if its not set, bank will not be modified (e.g., if bank is
* a percussion value it will be used). The exclude parameter can be
* set to a child item of @base to exclude from the list of "used"
* locales (useful when making an item unique that is already parented
* to @base). On return @bank and @program will be set to an unused
* MIDI locale based on the input criteria.
*/
void
ipatch_base_find_unused_midi_locale (IpatchBase *base, int *bank,
int *program, const IpatchItem *exclude,
gboolean percussion)
{
IpatchBaseClass *klass;
g_return_if_fail (IPATCH_IS_BASE (base));
g_return_if_fail (bank != NULL);
g_return_if_fail (program != NULL);
*bank = 0;
*program = 0;
klass = IPATCH_BASE_GET_CLASS (base);
if (klass && klass->find_unused_locale)
klass->find_unused_locale (base, bank, program, exclude, percussion);
}
/**
* ipatch_base_find_item_by_midi_locale:
* @base: Patch base object
* @bank: MIDI bank number of item to search for
* @program: MIDI program number of item to search for
*
* Find a child object in a base patch object which matches the given MIDI
* locale (@bank and @program numbers).
*
* Returns: The item or %NULL if not found. The caller owns a reference to the
* returned object, and is responsible for unref'ing when finished.
*/
IpatchItem *
ipatch_base_find_item_by_midi_locale (IpatchBase *base, int bank, int program)
{
IpatchBaseClass *klass;
g_return_val_if_fail (IPATCH_IS_BASE (base), NULL);
klass = IPATCH_BASE_GET_CLASS (base);
if (klass && klass->find_item_by_locale)
return (klass->find_item_by_locale (base, bank, program));
else return (NULL);
}
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