signal.c
/*
This file is part of darktable,
copyright (c) 2011 Henrik Andersson.
darktable 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.
darktable 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 darktable. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <glib.h>
#include "control/control.h"
#include "control/signal.h"
typedef struct dt_control_signal_t
{
/* the sinks for the signals */
GObject *sink;
}
dt_control_signal_t;
/*
GSignalFlags signal_flags,
...);
*/
typedef struct dt_signal_description
{
const char * name;
GSignalAccumulator accumulator;
gpointer accu_data;
GType return_type;
GSignalCMarshaller c_marshaller;
guint n_params;
GType *param_types;
} dt_signal_description;
static GType uint_arg[] = {G_TYPE_UINT};
static GType pointer_arg[] = {G_TYPE_POINTER};
static GType image_export_arg[] = {G_TYPE_UINT,G_TYPE_STRING};
static dt_signal_description _signal_description[DT_SIGNAL_COUNT] =
{
/* Global signals */
{"dt-global-mouse-over-image-change",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_MOUSE_OVER_IMAGE_CHANGE
{"dt-control-redraw-all",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_CONTROL_REDRAW_ALL
{"dt-control-redraw-center",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_CONTROL_REDRAW_CENTER
{"dt-viewmanager-view-changed",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_VIEWMANAGER_VIEW_CHANGED
{"dt-viewmanager-filmstrip-activate",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_VIEWMANAGER_FILMSTRIP_ACTIVATE
{"dt-collection-changed",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_COLLECTION_CHANGED
{"dt-tag-changed",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_TAG_CHANGED
{"dt-filmrolls-changed",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_FILMROLLS_CHANGED
{"dt-filmrolls-imported",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__UINT,1,uint_arg}, // DT_SIGNAL_FILMROLLS_IMPORTED
{"dt-filmrolls-removed",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_FILMROLLS_REMOVED
/* Develop related signals */
{"dt-develop-initialized",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_DEVELOP_INITIALIZED
{"dt-develop-mipmap-updated",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_DEVELOP_MIPMAP_UPDATED
{"dt-develop-preview-pipe-finished",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_DEVELOP_PREVIEW_PIPE_FINISHED
{"dt-develop-ui-pipe-finished",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_DEVELOP_UI_PIPE_FINISHED
{"dt-develop-history-change",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_HISTORY_CHANGE
{"dt-develop-image-changed",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_DEVELOP_IMAGE_CHANGE
{"dt-control-profile-changed",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_CONTROL_PROFILE_CHANGED
{"dt-image-import",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__UINT,1,uint_arg}, // DT_SIGNAL_IMAGE_IMPORT
{"dt-image-export-multiple",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__POINTER,1,pointer_arg}, // DT_SIGNAL_IMAGE_EXPORT_MULTIPLE
{"dt-image-export-tmpfile",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_generic,2,image_export_arg}, // DT_SIGNAL_IMAGE_EXPORT_TMPFILE
{"dt-imageio-storage-change",NULL,NULL,G_TYPE_NONE,g_cclosure_marshal_VOID__VOID,0,NULL}, // DT_SIGNAL_IMAGEIO_STORAGE_CHANGE
};
static GType _signal_type;
dt_control_signal_t *dt_control_signal_init()
{
dt_control_signal_t *ctlsig = g_malloc(sizeof(dt_control_signal_t));
memset(ctlsig, 0, sizeof(dt_control_signal_t));
/* setup dummy gobject typeinfo */
GTypeQuery query;
GTypeInfo type_info =
{
0, (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL,
(GClassInitFunc) NULL, (GClassFinalizeFunc) NULL,
NULL, 0,0, (GInstanceInitFunc) NULL
};
g_type_query(G_TYPE_OBJECT, &query);
type_info.class_size = query.class_size;
type_info.instance_size = query.instance_size;
_signal_type = g_type_register_static(G_TYPE_OBJECT, "DarktableSignals", &type_info, 0);
/* create our pretty empty gobject */
ctlsig->sink = g_object_new(_signal_type,NULL);
/* create the signals */
for (int k=0; k<DT_SIGNAL_COUNT; k++)
g_signal_newv(_signal_description[k].name, _signal_type, G_SIGNAL_RUN_LAST,0,
_signal_description[k].accumulator,_signal_description[k].accu_data,
_signal_description[k].c_marshaller,_signal_description[k].return_type,
_signal_description[k].n_params,_signal_description[k].param_types);
return ctlsig;
}
void dt_control_signal_raise(const dt_control_signal_t *ctlsig, dt_signal_t signal,...)
{
va_list extra_args;
// ignore all signals on shutdown, especially don't lock anything..
if(!dt_control_running()) return;
va_start(extra_args,signal);
gboolean i_own_lock = dt_control_gdk_lock();
//g_signal_emit_by_name(G_OBJECT(ctlsig->sink), _signal_description[signal].name);
g_signal_emit_valist(G_OBJECT(ctlsig->sink),g_signal_lookup(_signal_description[signal].name,_signal_type), 0,extra_args);
va_end(extra_args);
if (i_own_lock) dt_control_gdk_unlock();
}
void dt_control_signal_connect(const dt_control_signal_t *ctlsig,dt_signal_t signal, GCallback cb, gpointer user_data)
{
g_signal_connect(G_OBJECT(ctlsig->sink), _signal_description[signal].name, G_CALLBACK(cb),user_data);
}
void dt_control_signal_disconnect(const struct dt_control_signal_t *ctlsig, GCallback cb,gpointer user_data)
{
g_signal_handlers_disconnect_matched(G_OBJECT(ctlsig->sink),
G_SIGNAL_MATCH_FUNC|G_SIGNAL_MATCH_DATA,
0, 0,
NULL ,
cb, user_data);
}
// modelines: These editor modelines have been set for all relevant files by tools/update_modelines.sh
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