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392f00baf5
Turn all ID param specs into object param specs (e.g. GimpParamImageID becomes GimpParamImage) and convert between IDs and objects in gimpgpparams.c directly above the the wire protocol, so all of app/, libgimp/ and plug-ins/ can deal directly with objects down to the lowest level and not care about IDs. Use the actual object param specs for procedure arguments and return values again instead of a plain g_param_spec_object() and bring back the none_ok parameter. This implies changing the PDB type checking functions to work on pure integers instead of IDs (one can't check whether object creation is possible if performing that check requires the object to already exist). For example gimp_foo_is_valid() becomes gimp_foo_id_is_valid() and is not involved in automatic object creation magic at the protocol level. Added wrappers which still say gimp_foo_is_valid() and take the respective objects. Adapted all code, and it all becomes nicer and less convoluted, even the generated PDB wrappers in app/ and libgimp/.
189 lines
4.6 KiB
C
189 lines
4.6 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-2000 Peter Mattis and Spencer Kimball
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*
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* gimpdisplay.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 "gimp.h"
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#include "libgimpbase/gimpwire.h" /* FIXME kill this include */
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#include "gimpplugin-private.h"
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#include "gimpprocedure-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 _GimpDisplayPrivate
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{
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gint id;
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};
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static void gimp_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 gimp_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 (GimpDisplay, gimp_display, G_TYPE_OBJECT)
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#define parent_class gimp_display_parent_class
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static GParamSpec *props[N_PROPS] = { NULL, };
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static void
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gimp_display_class_init (GimpDisplayClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->set_property = gimp_display_set_property;
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object_class->get_property = gimp_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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GIMP_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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gimp_display_init (GimpDisplay *display)
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{
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display->priv = gimp_display_get_instance_private (display);
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}
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static void
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gimp_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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GimpDisplay *display = GIMP_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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gimp_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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GimpDisplay *display = GIMP_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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* gimp_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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gimp_display_get_id (GimpDisplay *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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* gimp_display_get_by_id:
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* @display_id: The display id.
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*
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* Returns a #GimpDisplay representing @display_id.
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*
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* Returns: (nullable) (transfer none): a #GimpDisplay 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 libgimp 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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GimpDisplay *
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gimp_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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GimpPlugIn *plug_in = gimp_get_plug_in ();
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GimpProcedure *procedure = _gimp_plug_in_get_procedure (plug_in);
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return _gimp_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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* gimp_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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gimp_display_is_valid (GimpDisplay *display)
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{
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return gimp_display_id_is_valid (gimp_display_get_id (display));
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}
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