mirror of https://github.com/GNOME/gimp.git
287 lines
8.0 KiB
C
287 lines
8.0 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimpcolordisplay.c
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* Copyright (C) 2002 Michael Natterer <mitch@gimp.org>
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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 2 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "libgimpcolor/gimpcolor.h"
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#include "gimpwidgetstypes.h"
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#include "gimpcolordisplay.h"
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enum
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{
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PROP_0,
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PROP_ENABLED
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};
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enum
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{
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CHANGED,
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LAST_SIGNAL
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};
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static void gimp_color_display_class_init (GimpColorDisplayClass *klass);
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static void gimp_color_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_color_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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static GObjectClass *parent_class = NULL;
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static guint display_signals[LAST_SIGNAL] = { 0 };
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GType
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gimp_color_display_get_type (void)
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{
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static GType display_type = 0;
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if (! display_type)
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{
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static const GTypeInfo display_info =
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{
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sizeof (GimpColorDisplayClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gimp_color_display_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpColorDisplay),
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0, /* n_preallocs */
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NULL /* instance_init */
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};
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display_type = g_type_register_static (G_TYPE_OBJECT,
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"GimpColorDisplay",
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&display_info, 0);
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}
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return display_type;
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}
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static void
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gimp_color_display_class_init (GimpColorDisplayClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->set_property = gimp_color_display_set_property;
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object_class->get_property = gimp_color_display_get_property;
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g_object_class_install_property (object_class, PROP_ENABLED,
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g_param_spec_boolean ("enabled", NULL, NULL,
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TRUE,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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display_signals[CHANGED] =
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g_signal_new ("changed",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GimpColorDisplayClass, changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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klass->name = "Unnamed";
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klass->help_id = NULL;
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klass->clone = NULL;
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klass->convert = NULL;
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klass->load_state = NULL;
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klass->save_state = NULL;
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klass->configure = NULL;
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klass->configure_reset = NULL;
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klass->changed = NULL;
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}
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static void
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gimp_color_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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GimpColorDisplay *display = GIMP_COLOR_DISPLAY (object);
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switch (property_id)
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{
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case PROP_ENABLED:
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display->enabled = g_value_get_boolean (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_color_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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GimpColorDisplay *display = GIMP_COLOR_DISPLAY (object);
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switch (property_id)
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{
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case PROP_ENABLED:
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g_value_set_boolean (value, display->enabled);
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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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GimpColorDisplay *
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gimp_color_display_new (GType display_type)
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{
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GimpColorDisplay *display;
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g_return_val_if_fail (g_type_is_a (display_type, GIMP_TYPE_COLOR_DISPLAY),
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NULL);
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display = g_object_new (display_type, NULL);
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return display;
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}
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GimpColorDisplay *
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gimp_color_display_clone (GimpColorDisplay *display)
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{
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g_return_val_if_fail (GIMP_IS_COLOR_DISPLAY (display), NULL);
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if (GIMP_COLOR_DISPLAY_GET_CLASS (display)->clone)
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{
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GimpColorDisplay *clone = NULL;
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clone = GIMP_COLOR_DISPLAY_GET_CLASS (display)->clone (display);
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if (clone)
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clone->enabled = display->enabled;
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return clone;
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}
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return NULL;
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}
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void
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gimp_color_display_convert (GimpColorDisplay *display,
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guchar *buf,
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gint width,
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gint height,
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gint bpp,
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gint bpl)
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{
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g_return_if_fail (GIMP_IS_COLOR_DISPLAY (display));
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if (display->enabled && GIMP_COLOR_DISPLAY_GET_CLASS (display)->convert)
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GIMP_COLOR_DISPLAY_GET_CLASS (display)->convert (display, buf,
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width, height,
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bpp, bpl);
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}
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void
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gimp_color_display_load_state (GimpColorDisplay *display,
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GimpParasite *state)
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{
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g_return_if_fail (GIMP_IS_COLOR_DISPLAY (display));
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g_return_if_fail (state != NULL);
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if (GIMP_COLOR_DISPLAY_GET_CLASS (display)->load_state)
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GIMP_COLOR_DISPLAY_GET_CLASS (display)->load_state (display, state);
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}
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GimpParasite *
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gimp_color_display_save_state (GimpColorDisplay *display)
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{
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g_return_val_if_fail (GIMP_IS_COLOR_DISPLAY (display), NULL);
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if (GIMP_COLOR_DISPLAY_GET_CLASS (display)->save_state)
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return GIMP_COLOR_DISPLAY_GET_CLASS (display)->save_state (display);
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return NULL;
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}
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GtkWidget *
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gimp_color_display_configure (GimpColorDisplay *display)
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{
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g_return_val_if_fail (GIMP_IS_COLOR_DISPLAY (display), NULL);
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if (GIMP_COLOR_DISPLAY_GET_CLASS (display)->configure)
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return GIMP_COLOR_DISPLAY_GET_CLASS (display)->configure (display);
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return NULL;
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}
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void
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gimp_color_display_configure_reset (GimpColorDisplay *display)
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{
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g_return_if_fail (GIMP_IS_COLOR_DISPLAY (display));
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if (GIMP_COLOR_DISPLAY_GET_CLASS (display)->configure_reset)
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GIMP_COLOR_DISPLAY_GET_CLASS (display)->configure_reset (display);
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}
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void
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gimp_color_display_changed (GimpColorDisplay *display)
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{
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g_return_if_fail (GIMP_IS_COLOR_DISPLAY (display));
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g_signal_emit (display, display_signals[CHANGED], 0);
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}
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void
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gimp_color_display_set_enabled (GimpColorDisplay *display,
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gboolean enabled)
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{
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g_return_if_fail (GIMP_IS_COLOR_DISPLAY (display));
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if (enabled != display->enabled)
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{
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g_object_set (display,
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"enabled", enabled,
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NULL);
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}
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}
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gboolean
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gimp_color_display_get_enabled (GimpColorDisplay *display)
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{
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g_return_val_if_fail (GIMP_IS_COLOR_DISPLAY (display), FALSE);
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return display->enabled;
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}
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