322 lines
10 KiB
C
322 lines
10 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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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 <glib-object.h>
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#include "core-types.h"
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#include "core/pikasubprogress.h"
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#include "core/pikaprogress.h"
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enum
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{
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PROP_0,
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PROP_PROGRESS
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};
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static void pika_sub_progress_iface_init (PikaProgressInterface *iface);
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static void pika_sub_progress_finalize (GObject *object);
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static void pika_sub_progress_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 pika_sub_progress_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 PikaProgress * pika_sub_progress_start (PikaProgress *progress,
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gboolean cancellable,
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const gchar *message);
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static void pika_sub_progress_end (PikaProgress *progress);
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static gboolean pika_sub_progress_is_active (PikaProgress *progress);
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static void pika_sub_progress_set_text (PikaProgress *progress,
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const gchar *message);
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static void pika_sub_progress_set_value (PikaProgress *progress,
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gdouble percentage);
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static gdouble pika_sub_progress_get_value (PikaProgress *progress);
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static void pika_sub_progress_pulse (PikaProgress *progress);
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static guint32 pika_sub_progress_get_window_id (PikaProgress *progress);
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static gboolean pika_sub_progress_message (PikaProgress *progress,
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Pika *pika,
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PikaMessageSeverity severity,
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const gchar *domain,
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const gchar *message);
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G_DEFINE_TYPE_WITH_CODE (PikaSubProgress, pika_sub_progress, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (PIKA_TYPE_PROGRESS,
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pika_sub_progress_iface_init))
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#define parent_class pika_sub_progress_parent_class
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static void
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pika_sub_progress_class_init (PikaSubProgressClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = pika_sub_progress_finalize;
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object_class->set_property = pika_sub_progress_set_property;
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object_class->get_property = pika_sub_progress_get_property;
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g_object_class_install_property (object_class, PROP_PROGRESS,
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g_param_spec_object ("progress",
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NULL, NULL,
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PIKA_TYPE_PROGRESS,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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}
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static void
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pika_sub_progress_init (PikaSubProgress *sub)
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{
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sub->progress = NULL;
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sub->start = 0.0;
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sub->end = 1.0;
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}
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static void
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pika_sub_progress_finalize (GObject *object)
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{
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PikaSubProgress *sub = PIKA_SUB_PROGRESS (object);
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g_clear_object (&sub->progress);
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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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pika_sub_progress_iface_init (PikaProgressInterface *iface)
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{
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iface->start = pika_sub_progress_start;
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iface->end = pika_sub_progress_end;
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iface->is_active = pika_sub_progress_is_active;
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iface->set_text = pika_sub_progress_set_text;
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iface->set_value = pika_sub_progress_set_value;
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iface->get_value = pika_sub_progress_get_value;
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iface->pulse = pika_sub_progress_pulse;
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iface->get_window_id = pika_sub_progress_get_window_id;
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iface->message = pika_sub_progress_message;
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}
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static void
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pika_sub_progress_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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PikaSubProgress *sub = PIKA_SUB_PROGRESS (object);
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switch (property_id)
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{
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case PROP_PROGRESS:
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g_return_if_fail (sub->progress == NULL);
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sub->progress = g_value_dup_object (value);
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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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pika_sub_progress_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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PikaSubProgress *sub = PIKA_SUB_PROGRESS (object);
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switch (property_id)
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{
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case PROP_PROGRESS:
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g_value_set_object (value, sub->progress);
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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 PikaProgress *
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pika_sub_progress_start (PikaProgress *progress,
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gboolean cancellable,
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const gchar *message)
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{
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/* does nothing */
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return NULL;
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}
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static void
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pika_sub_progress_end (PikaProgress *progress)
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{
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/* does nothing */
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}
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static gboolean
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pika_sub_progress_is_active (PikaProgress *progress)
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{
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PikaSubProgress *sub = PIKA_SUB_PROGRESS (progress);
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if (sub->progress)
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return pika_progress_is_active (sub->progress);
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return FALSE;
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}
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static void
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pika_sub_progress_set_text (PikaProgress *progress,
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const gchar *message)
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{
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/* does nothing */
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}
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static void
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pika_sub_progress_set_value (PikaProgress *progress,
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gdouble percentage)
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{
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PikaSubProgress *sub = PIKA_SUB_PROGRESS (progress);
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if (sub->progress)
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pika_progress_set_value (sub->progress,
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sub->start + percentage * (sub->end - sub->start));
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}
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static gdouble
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pika_sub_progress_get_value (PikaProgress *progress)
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{
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PikaSubProgress *sub = PIKA_SUB_PROGRESS (progress);
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if (sub->progress)
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return pika_progress_get_value (sub->progress);
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return 0.0;
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}
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static void
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pika_sub_progress_pulse (PikaProgress *progress)
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{
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PikaSubProgress *sub = PIKA_SUB_PROGRESS (progress);
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if (sub->progress)
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pika_progress_pulse (sub->progress);
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}
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static guint32
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pika_sub_progress_get_window_id (PikaProgress *progress)
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{
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PikaSubProgress *sub = PIKA_SUB_PROGRESS (progress);
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if (sub->progress)
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return pika_progress_get_window_id (sub->progress);
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return 0;
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}
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static gboolean
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pika_sub_progress_message (PikaProgress *progress,
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Pika *pika,
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PikaMessageSeverity severity,
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const gchar *domain,
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const gchar *message)
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{
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PikaSubProgress *sub = PIKA_SUB_PROGRESS (progress);
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if (sub->progress)
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return pika_progress_message (sub->progress,
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pika, severity, domain, message);
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return FALSE;
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}
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/**
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* pika_sub_progress_new:
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* @progress: parent progress or %NULL
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*
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* PikaSubProgress implements the PikaProgress interface and can be
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* used wherever a PikaProgress is needed. It maps progress
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* information to a sub-range of its parent @progress. This is useful
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* when an action breaks down into multiple sub-actions that itself
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* need a #PikaProgress pointer. See pika_image_scale() for an example.
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*
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* Returns: a new #PikaProgress object
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*/
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PikaProgress *
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pika_sub_progress_new (PikaProgress *progress)
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{
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PikaSubProgress *sub;
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g_return_val_if_fail (progress == NULL || PIKA_IS_PROGRESS (progress), NULL);
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sub = g_object_new (PIKA_TYPE_SUB_PROGRESS,
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"progress", progress,
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NULL);
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return PIKA_PROGRESS (sub);
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}
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/**
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* pika_sub_progress_set_range:
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* @start: start value of range on the parent process
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* @end: end value of range on the parent process
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*
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* Sets a range on the parent progress that this @progress should be
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* mapped to.
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*/
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void
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pika_sub_progress_set_range (PikaSubProgress *progress,
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gdouble start,
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gdouble end)
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{
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g_return_if_fail (PIKA_IS_SUB_PROGRESS (progress));
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g_return_if_fail (start < end);
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progress->start = start;
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progress->end = end;
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}
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/**
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* pika_sub_progress_set_step:
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* @index: step index
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* @num_steps: number of steps
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*
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* A more convenient form of pika_sub_progress_set_range().
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*/
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void
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pika_sub_progress_set_step (PikaSubProgress *progress,
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gint index,
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gint num_steps)
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{
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g_return_if_fail (PIKA_IS_SUB_PROGRESS (progress));
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g_return_if_fail (index < num_steps && num_steps > 0);
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progress->start = (gdouble) index / num_steps;
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progress->end = (gdouble) (index + 1) / num_steps;
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}
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