mirror of https://github.com/GNOME/gimp.git
351 lines
9.7 KiB
C
351 lines
9.7 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpasyncset.c
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* Copyright (C) 2018 Ell
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "libgimpbase/gimpbase.h"
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#include "core-types.h"
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#include "gimpasync.h"
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#include "gimpasyncset.h"
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#include "gimpcancelable.h"
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#include "gimpwaitable.h"
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enum
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{
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PROP_0,
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PROP_EMPTY
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};
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struct _GimpAsyncSetPrivate
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{
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GHashTable *asyncs;
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};
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/* local function prototypes */
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static void gimp_async_set_waitable_iface_init (GimpWaitableInterface *iface);
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static void gimp_async_set_cancelable_iface_init (GimpCancelableInterface *iface);
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static void gimp_async_set_dispose (GObject *object);
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static void gimp_async_set_finalize (GObject *object);
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static void gimp_async_set_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gimp_async_set_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static void gimp_async_set_wait (GimpWaitable *waitable);
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static gboolean gimp_async_set_try_wait (GimpWaitable *waitable);
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static gboolean gimp_async_set_wait_until (GimpWaitable *waitable,
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gint64 end_time);
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static void gimp_async_set_cancel (GimpCancelable *cancelable);
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static void gimp_async_set_async_callback (GimpAsync *async,
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GimpAsyncSet *async_set);
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G_DEFINE_TYPE_WITH_CODE (GimpAsyncSet, gimp_async_set, G_TYPE_OBJECT,
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G_ADD_PRIVATE (GimpAsyncSet)
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G_IMPLEMENT_INTERFACE (GIMP_TYPE_WAITABLE,
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gimp_async_set_waitable_iface_init)
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G_IMPLEMENT_INTERFACE (GIMP_TYPE_CANCELABLE,
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gimp_async_set_cancelable_iface_init))
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#define parent_class gimp_async_set_parent_class
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/* private functions */
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static void
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gimp_async_set_class_init (GimpAsyncSetClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->dispose = gimp_async_set_dispose;
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object_class->finalize = gimp_async_set_finalize;
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object_class->set_property = gimp_async_set_set_property;
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object_class->get_property = gimp_async_set_get_property;
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g_object_class_install_property (object_class, PROP_EMPTY,
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g_param_spec_boolean ("empty",
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NULL, NULL,
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FALSE,
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GIMP_PARAM_READABLE));
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}
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static void
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gimp_async_set_waitable_iface_init (GimpWaitableInterface *iface)
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{
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iface->wait = gimp_async_set_wait;
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iface->try_wait = gimp_async_set_try_wait;
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iface->wait_until = gimp_async_set_wait_until;
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}
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static void
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gimp_async_set_cancelable_iface_init (GimpCancelableInterface *iface)
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{
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iface->cancel = gimp_async_set_cancel;
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}
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static void
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gimp_async_set_init (GimpAsyncSet *async_set)
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{
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async_set->priv = gimp_async_set_get_instance_private (async_set);
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async_set->priv->asyncs = g_hash_table_new (NULL, NULL);
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}
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static void
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gimp_async_set_dispose (GObject *object)
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{
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GimpAsyncSet *async_set = GIMP_ASYNC_SET (object);
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gimp_async_set_clear (async_set);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gimp_async_set_finalize (GObject *object)
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{
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GimpAsyncSet *async_set = GIMP_ASYNC_SET (object);
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g_hash_table_unref (async_set->priv->asyncs);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gimp_async_set_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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switch (property_id)
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{
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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gimp_async_set_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GimpAsyncSet *async_set = GIMP_ASYNC_SET (object);
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switch (property_id)
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{
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case PROP_EMPTY:
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g_value_set_boolean (value, gimp_async_set_is_empty (async_set));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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gimp_async_set_wait (GimpWaitable *waitable)
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{
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GimpAsyncSet *async_set = GIMP_ASYNC_SET (waitable);
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while (! gimp_async_set_is_empty (async_set))
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{
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GimpAsync *async;
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GHashTableIter iter;
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g_hash_table_iter_init (&iter, async_set->priv->asyncs);
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g_hash_table_iter_next (&iter, (gpointer *) &async, NULL);
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gimp_waitable_wait (GIMP_WAITABLE (async));
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}
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}
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static gboolean
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gimp_async_set_try_wait (GimpWaitable *waitable)
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{
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GimpAsyncSet *async_set = GIMP_ASYNC_SET (waitable);
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while (! gimp_async_set_is_empty (async_set))
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{
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GimpAsync *async;
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GHashTableIter iter;
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g_hash_table_iter_init (&iter, async_set->priv->asyncs);
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g_hash_table_iter_next (&iter, (gpointer *) &async, NULL);
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if (! gimp_waitable_try_wait (GIMP_WAITABLE (async)))
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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gimp_async_set_wait_until (GimpWaitable *waitable,
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gint64 end_time)
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{
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GimpAsyncSet *async_set = GIMP_ASYNC_SET (waitable);
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while (! gimp_async_set_is_empty (async_set))
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{
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GimpAsync *async;
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GHashTableIter iter;
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g_hash_table_iter_init (&iter, async_set->priv->asyncs);
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g_hash_table_iter_next (&iter, (gpointer *) &async, NULL);
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if (! gimp_waitable_wait_until (GIMP_WAITABLE (async), end_time))
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return FALSE;
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}
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return TRUE;
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}
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static void
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gimp_async_set_cancel (GimpCancelable *cancelable)
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{
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GimpAsyncSet *async_set = GIMP_ASYNC_SET (cancelable);
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GList *list;
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list = g_hash_table_get_keys (async_set->priv->asyncs);
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g_list_foreach (list, (GFunc) g_object_ref, NULL);
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g_list_foreach (list, (GFunc) gimp_cancelable_cancel, NULL);
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g_list_free_full (list, g_object_unref);
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}
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static void
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gimp_async_set_async_callback (GimpAsync *async,
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GimpAsyncSet *async_set)
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{
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g_hash_table_remove (async_set->priv->asyncs, async);
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if (gimp_async_set_is_empty (async_set))
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g_object_notify (G_OBJECT (async_set), "empty");
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}
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/* public functions */
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GimpAsyncSet *
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gimp_async_set_new (void)
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{
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return g_object_new (GIMP_TYPE_ASYNC_SET,
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NULL);
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}
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void
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gimp_async_set_add (GimpAsyncSet *async_set,
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GimpAsync *async)
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{
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g_return_if_fail (GIMP_IS_ASYNC_SET (async_set));
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g_return_if_fail (GIMP_IS_ASYNC (async));
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if (g_hash_table_add (async_set->priv->asyncs, async))
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{
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if (g_hash_table_size (async_set->priv->asyncs) == 1)
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g_object_notify (G_OBJECT (async_set), "empty");
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gimp_async_add_callback (
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async,
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(GimpAsyncCallback) gimp_async_set_async_callback,
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async_set);
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}
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}
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void
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gimp_async_set_remove (GimpAsyncSet *async_set,
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GimpAsync *async)
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{
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g_return_if_fail (GIMP_IS_ASYNC_SET (async_set));
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g_return_if_fail (GIMP_IS_ASYNC (async));
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if (g_hash_table_remove (async_set->priv->asyncs, async))
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{
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gimp_async_remove_callback (
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async,
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(GimpAsyncCallback) gimp_async_set_async_callback,
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async_set);
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if (g_hash_table_size (async_set->priv->asyncs) == 0)
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g_object_notify (G_OBJECT (async_set), "empty");
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}
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}
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void
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gimp_async_set_clear (GimpAsyncSet *async_set)
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{
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GimpAsync *async;
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GHashTableIter iter;
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g_return_if_fail (GIMP_IS_ASYNC_SET (async_set));
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if (gimp_async_set_is_empty (async_set))
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return;
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g_hash_table_iter_init (&iter, async_set->priv->asyncs);
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while (g_hash_table_iter_next (&iter, (gpointer *) &async, NULL))
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{
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gimp_async_remove_callback (
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async,
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(GimpAsyncCallback) gimp_async_set_async_callback,
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async_set);
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}
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g_hash_table_remove_all (async_set->priv->asyncs);
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g_object_notify (G_OBJECT (async_set), "empty");
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}
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gboolean
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gimp_async_set_is_empty (GimpAsyncSet *async_set)
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{
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g_return_val_if_fail (GIMP_IS_ASYNC_SET (async_set), FALSE);
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return g_hash_table_size (async_set->priv->asyncs) == 0;
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}
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