swe-glib/src/gswe-antiscion-axis-info.c
Gergely Polonkai 41a80ca365 Make gswe_antiscion_axis_info_free() to unref its start_sign
This is to fix a bug that makes the library crash when the timestamp
or the chart changes.
2014-03-15 18:38:27 +01:00

262 lines
7.2 KiB
C

/* gswe-antiscion-axis-info.c: Antiscion axis related information
*
* Copyright © 2013 Gergely Polonkai
*
* SWE-GLib is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* SWE-GLib 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "swe-glib.h"
#include "swe-glib-private.h"
#include "gswe-antiscion-axis-info.h"
#include "gswe-antiscion-axis-info-private.h"
/**
* SECTION:gswe-antiscion-axis-info
* @short_description: a structure storing information about antiscion axes
* @title: GsweAntiscionAxisInfo
* @stability: Stable
* @include: swe-glib.h
*
* The #GsweAntiscionAxisInfo stores information about an antiscion axis.
*/
G_DEFINE_BOXED_TYPE(GsweAntiscionAxisInfo, gswe_antiscion_axis_info, (GBoxedCopyFunc)gswe_antiscion_axis_info_ref, (GBoxedFreeFunc)gswe_antiscion_axis_info_unref);
static void
gswe_antiscion_axis_info_free(GsweAntiscionAxisInfo *antiscion_axis_info)
{
if (antiscion_axis_info->name) {
g_free(antiscion_axis_info->name);
}
if (antiscion_axis_info->start_sign != NULL) {
gswe_sign_info_unref(antiscion_axis_info->start_sign);
}
g_free(antiscion_axis_info);
}
/**
* gswe_antiscion_axis_info_new:
*
* Creates a new #GsweAntiscionAxisInfo object with reference count set to 1.
*
* Returns: (transfer full): a new #GsweAntiscionAxisInfo
*/
GsweAntiscionAxisInfo *
gswe_antiscion_axis_info_new(void)
{
GsweAntiscionAxisInfo *ret;
ret = g_new0(GsweAntiscionAxisInfo, 1);
ret->refcount = 1;
return ret;
}
/**
* gswe_antiscion_axis_info_ref:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
*
* Increases reference count on @antiscion_axis_info.
*
* Returns: (transfer none): the same #GsweAntiscionAxisInfo
*/
GsweAntiscionAxisInfo *
gswe_antiscion_axis_info_ref(GsweAntiscionAxisInfo *antiscion_axis_info)
{
antiscion_axis_info->refcount++;
return antiscion_axis_info;
}
/**
* gswe_antiscion_axis_info_unref:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
*
* Decreases reference count on @antiscion_axis_info. If reference count reaches zero, @antiscion_axis_info is freed.
*/
void
gswe_antiscion_axis_info_unref(GsweAntiscionAxisInfo *antiscion_axis_info)
{
if (--antiscion_axis_info->refcount == 0) {
gswe_antiscion_axis_info_free(antiscion_axis_info);
}
}
/**
* gswe_antiscion_axis_info_set_axis:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
* @axis: the new axis
*
* Sets the axis ID.
*/
void
gswe_antiscion_axis_info_set_axis(GsweAntiscionAxisInfo *antiscion_axis_info, GsweAntiscionAxis axis)
{
antiscion_axis_info->axis = axis;
}
/**
* gswe_antiscion_axis_info_get_axis:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
*
* Gets the axis ID.
*
* Returns: the axis this #GsweAntiscionAxisInfo represents
*/
GsweAntiscionAxis
gswe_antiscion_axis_info_get_axis(GsweAntiscionAxisInfo *antiscion_axis_info)
{
return antiscion_axis_info->axis;
}
/**
* gswe_antiscion_axis_info_set_start_sign_info:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
* @sign_info: a #GsweSignInfo to set as the starting sign of @antiscion_axis_info
*
* Sets the starting sign of the axis.
*/
void
gswe_antiscion_axis_info_set_start_sign_info(GsweAntiscionAxisInfo *antiscion_axis_info, GsweSignInfo *sign_info)
{
if (antiscion_axis_info->start_sign != NULL) {
gswe_sign_info_unref(antiscion_axis_info->start_sign);
}
antiscion_axis_info->start_sign = gswe_sign_info_ref(sign_info);
}
/**
* gswe_antiscion_axis_info_get_start_sign_info:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
*
* Gets the starting sign of the axis.
*
* Returns: (transfer none): the #GsweSignInfo of the sign in which this axis starts
*/
GsweSignInfo *
gswe_antiscion_axis_info_get_start_sign_info(GsweAntiscionAxisInfo *antiscion_axis_info)
{
return antiscion_axis_info->start_sign;
}
/**
* gswe_antiscion_axis_info_set_start_sign:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
* @sign: the new starting sign of @antiscion_axis_info
* @err: a #GError
*
* Sets the starting sign of the axis. Unlike
* gswe_antiscion_axis_info_set_start_sign(), this method searches through the
* registered signs for a #GsweSignInfo record, and sets that as the starting
* sign. @err is populated with GSWE_ERROR_UNKNOWN_SIGN if such record can not
* be found.
*/
void
gswe_antiscion_axis_info_set_start_sign(GsweAntiscionAxisInfo *antiscion_axis_info, GsweZodiac sign, GError **err)
{
GsweSignInfo *sign_info;
if ((sign_info = g_hash_table_lookup(gswe_sign_info_table, GINT_TO_POINTER(sign))) == NULL) {
g_warning("Trying to fetch an unregistered sign");
g_set_error(err, GSWE_ERROR, GSWE_ERROR_UNKNOWN_SIGN, "The requested sign is not registered");
return;
}
if (antiscion_axis_info->start_sign != NULL) {
gswe_sign_info_unref(antiscion_axis_info->start_sign);
}
antiscion_axis_info->start_sign = gswe_sign_info_ref(sign_info);
}
/**
* gswe_antiscion_axis_info_get_start_sign:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
*
* Gets the starting sign of the axis.
*
* Returns: the corresponding sign ID
*/
GsweZodiac
gswe_antiscion_axis_info_get_start_sign(GsweAntiscionAxisInfo *antiscion_axis_info)
{
if (antiscion_axis_info->start_sign) {
return antiscion_axis_info->start_sign->sign;
} else {
return GSWE_SIGN_NONE;
}
}
/**
* gswe_antiscion_axis_info_set_name:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
* @name: the new name of the axis
*
* Sets the name of the axis
*/
void
gswe_antiscion_axis_info_set_name(GsweAntiscionAxisInfo *antiscion_axis_info, const gchar *name)
{
if (antiscion_axis_info->name != NULL) {
g_free(antiscion_axis_info->name);
}
antiscion_axis_info->name = g_strdup(name);
}
/**
* gswe_antiscion_axis_info_get_name:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
*
* Gets the name of the axis.
*
* Returns: (transfer none): the name of the axis
*/
const gchar *
gswe_antiscion_axis_info_get_name(GsweAntiscionAxisInfo *antiscion_axis_info)
{
return antiscion_axis_info->name;
}
/**
* gswe_antiscion_axis_info_set_sign_offset:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
* @sign_offset: the new sign offset, in degree
*
* Sets the offset at which the axis starts.
*/
void
gswe_antiscion_axis_info_set_sign_offset(GsweAntiscionAxisInfo *antiscion_axis_info, gdouble sign_offset)
{
antiscion_axis_info->sign_offset = sign_offset;
}
/**
* gswe_antiscion_axis_info_get_sign_offset:
* @antiscion_axis_info: (in): a #GsweAntiscionAxisInfo
*
* Gets the offset at which the axis starts.
*
* Returns: the offset, in degrees
*/
gdouble
gswe_antiscion_axis_info_get_sign_offset(GsweAntiscionAxisInfo *antiscion_axis_info)
{
return antiscion_axis_info->sign_offset;
}