190 lines
4.6 KiB
C
190 lines
4.6 KiB
C
/* LIBPIKA - The PIKA Library
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* Copyright (C) 1995-2000 Peter Mattis and Spencer Kimball
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*
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* pikadisplay.c
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* Copyright (C) Jehan
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "pika.h"
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#include "libpikabase/pikawire.h" /* FIXME kill this include */
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#include "pikaplugin-private.h"
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#include "pikaprocedure-private.h"
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enum
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{
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PROP_0,
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PROP_ID,
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N_PROPS
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};
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struct _PikaDisplayPrivate
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{
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gint id;
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};
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static void pika_display_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_display_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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G_DEFINE_TYPE_WITH_PRIVATE (PikaDisplay, pika_display, G_TYPE_OBJECT)
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#define parent_class pika_display_parent_class
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static GParamSpec *props[N_PROPS] = { NULL, };
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static void
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pika_display_class_init (PikaDisplayClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->set_property = pika_display_set_property;
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object_class->get_property = pika_display_get_property;
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props[PROP_ID] =
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g_param_spec_int ("id",
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"The display id",
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"The display id for internal use",
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0, G_MAXINT32, 0,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY);
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g_object_class_install_properties (object_class, N_PROPS, props);
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}
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static void
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pika_display_init (PikaDisplay *display)
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{
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display->priv = pika_display_get_instance_private (display);
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}
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static void
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pika_display_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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PikaDisplay *display = PIKA_DISPLAY (object);
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switch (property_id)
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{
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case PROP_ID:
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display->priv->id = g_value_get_int (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_display_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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PikaDisplay *display = PIKA_DISPLAY (object);
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switch (property_id)
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{
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case PROP_ID:
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g_value_set_int (value, display->priv->id);
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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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/* Public API */
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/**
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* pika_display_get_id:
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* @display: The display.
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*
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* Returns: the display ID.
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*
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* Since: 3.0
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**/
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gint32
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pika_display_get_id (PikaDisplay *display)
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{
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return display ? display->priv->id : -1;
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}
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/**
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* pika_display_get_by_id:
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* @display_id: The display id.
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*
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* Returns a #PikaDisplay representing @display_id.
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*
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* Returns: (nullable) (transfer none): a #PikaDisplay for @display_id or
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* %NULL if @display_id does not represent a valid display.
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* The object belongs to libpika and you must not modify or
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* unref it.
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*
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* Since: 3.0
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**/
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PikaDisplay *
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pika_display_get_by_id (gint32 display_id)
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{
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if (display_id > 0)
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{
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PikaPlugIn *plug_in = pika_get_plug_in ();
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PikaProcedure *procedure = _pika_plug_in_get_procedure (plug_in);
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return _pika_procedure_get_display (procedure, display_id);
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}
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return NULL;
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}
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/**
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* pika_display_is_valid:
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* @display: The display to check.
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*
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* Returns TRUE if the display is valid.
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*
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* This procedure checks if the given display is valid and refers to
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* an existing display.
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*
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* Returns: Whether the display is valid.
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*
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* Since: 2.4
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**/
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gboolean
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pika_display_is_valid (PikaDisplay *display)
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{
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return pika_display_id_is_valid (pika_display_get_id (display));
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}
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