mirror of https://github.com/GNOME/gimp.git
305 lines
8.2 KiB
C
305 lines
8.2 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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* GimpGuide
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* Copyright (C) 2003 Henrik Brix Andersen <brix@gimp.org>
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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 <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <cairo.h>
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#include <gegl.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gio/gio.h>
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#include "libgimpbase/gimpbase.h"
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#include "libgimpcolor/gimpcolor.h"
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#include "libgimpconfig/gimpconfig.h"
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#include "core-types.h"
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#include "gimpguide.h"
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#include "gimpmarshal.h"
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enum
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{
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REMOVED,
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LAST_SIGNAL
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};
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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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PROP_ORIENTATION,
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PROP_POSITION,
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PROP_STYLE
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};
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struct _GimpGuidePrivate
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{
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guint32 guide_ID;
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GimpOrientationType orientation;
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gint position;
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GimpGuideStyle style;
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};
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static void gimp_guide_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_guide_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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G_DEFINE_TYPE (GimpGuide, gimp_guide, G_TYPE_OBJECT)
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static guint gimp_guide_signals[LAST_SIGNAL] = { 0 };
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static void
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gimp_guide_class_init (GimpGuideClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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gimp_guide_signals[REMOVED] =
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g_signal_new ("removed",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GimpGuideClass, removed),
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NULL, NULL,
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gimp_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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object_class->get_property = gimp_guide_get_property;
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object_class->set_property = gimp_guide_set_property;
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klass->removed = NULL;
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g_object_class_install_property (object_class, PROP_ID,
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g_param_spec_uint ("id", NULL, NULL,
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0, G_MAXUINT32, 0,
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G_PARAM_CONSTRUCT_ONLY |
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GIMP_PARAM_READWRITE));
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GIMP_CONFIG_PROP_ENUM (object_class, PROP_ORIENTATION,
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"orientation",
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NULL, NULL,
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GIMP_TYPE_ORIENTATION_TYPE,
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GIMP_ORIENTATION_UNKNOWN,
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0);
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GIMP_CONFIG_PROP_INT (object_class, PROP_POSITION,
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"position",
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NULL, NULL,
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GIMP_GUIDE_POSITION_UNDEFINED,
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GIMP_MAX_IMAGE_SIZE,
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GIMP_GUIDE_POSITION_UNDEFINED,
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0);
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GIMP_CONFIG_PROP_ENUM (object_class, PROP_STYLE,
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"style",
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NULL, NULL,
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GIMP_TYPE_GUIDE_STYLE,
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GIMP_GUIDE_STYLE_NONE,
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0);
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g_type_class_add_private (klass, sizeof (GimpGuidePrivate));
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}
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static void
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gimp_guide_init (GimpGuide *guide)
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{
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guide->priv = G_TYPE_INSTANCE_GET_PRIVATE (guide, GIMP_TYPE_GUIDE,
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GimpGuidePrivate);
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}
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static void
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gimp_guide_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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GimpGuide *guide = GIMP_GUIDE (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_uint (value, guide->priv->guide_ID);
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break;
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case PROP_ORIENTATION:
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g_value_set_enum (value, guide->priv->orientation);
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break;
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case PROP_POSITION:
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g_value_set_int (value, guide->priv->position);
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break;
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case PROP_STYLE:
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g_value_set_enum (value, guide->priv->style);
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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_guide_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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GimpGuide *guide = GIMP_GUIDE (object);
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switch (property_id)
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{
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case PROP_ID:
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guide->priv->guide_ID = g_value_get_uint (value);
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break;
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case PROP_ORIENTATION:
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guide->priv->orientation = g_value_get_enum (value);
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break;
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case PROP_POSITION:
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guide->priv->position = g_value_get_int (value);
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break;
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case PROP_STYLE:
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guide->priv->style = g_value_get_enum (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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GimpGuide *
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gimp_guide_new (GimpOrientationType orientation,
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guint32 guide_ID)
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{
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return g_object_new (GIMP_TYPE_GUIDE,
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"id", guide_ID,
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"orientation", orientation,
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"style", GIMP_GUIDE_STYLE_NORMAL,
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NULL);
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}
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/**
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* gimp_guide_custom_new:
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* @orientation: the #GimpOrientationType
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* @guide_ID: the unique guide ID
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* @guide_style: the #GimpGuideStyle
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*
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* This function returns a new guide and will flag it as "custom".
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* Custom guides are used for purpose "other" than the basic guides
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* a user can create oneself, for instance as symmetry guides, to
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* drive GEGL ops, etc.
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* They are not saved in the XCF file. If an op, a symmetry or a plugin
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* wishes to save its state, it has to do it internally.
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* Moreover they don't follow guide snapping settings and never snap.
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*
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* Returns: the custom #GimpGuide.
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**/
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GimpGuide *
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gimp_guide_custom_new (GimpOrientationType orientation,
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guint32 guide_ID,
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GimpGuideStyle guide_style)
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{
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GimpGuide *guide;
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guide = g_object_new (GIMP_TYPE_GUIDE,
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"id", guide_ID,
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"orientation", orientation,
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"style", guide_style,
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NULL);
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return guide;
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}
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guint32
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gimp_guide_get_ID (GimpGuide *guide)
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{
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g_return_val_if_fail (GIMP_IS_GUIDE (guide), 0);
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return guide->priv->guide_ID;
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}
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GimpOrientationType
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gimp_guide_get_orientation (GimpGuide *guide)
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{
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g_return_val_if_fail (GIMP_IS_GUIDE (guide), GIMP_ORIENTATION_UNKNOWN);
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return guide->priv->orientation;
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}
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void
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gimp_guide_set_orientation (GimpGuide *guide,
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GimpOrientationType orientation)
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{
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g_return_if_fail (GIMP_IS_GUIDE (guide));
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guide->priv->orientation = orientation;
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g_object_notify (G_OBJECT (guide), "orientation");
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}
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gint
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gimp_guide_get_position (GimpGuide *guide)
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{
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g_return_val_if_fail (GIMP_IS_GUIDE (guide), GIMP_GUIDE_POSITION_UNDEFINED);
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return guide->priv->position;
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}
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void
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gimp_guide_set_position (GimpGuide *guide,
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gint position)
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{
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g_return_if_fail (GIMP_IS_GUIDE (guide));
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guide->priv->position = position;
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g_object_notify (G_OBJECT (guide), "position");
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}
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void
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gimp_guide_removed (GimpGuide *guide)
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{
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g_return_if_fail (GIMP_IS_GUIDE (guide));
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g_signal_emit (guide, gimp_guide_signals[REMOVED], 0);
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}
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GimpGuideStyle
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gimp_guide_get_style (GimpGuide *guide)
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{
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g_return_val_if_fail (GIMP_IS_GUIDE (guide), GIMP_GUIDE_STYLE_NONE);
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return guide->priv->style;
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}
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gboolean
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gimp_guide_is_custom (GimpGuide *guide)
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{
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g_return_val_if_fail (GIMP_IS_GUIDE (guide), FALSE);
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return guide->priv->style != GIMP_GUIDE_STYLE_NORMAL;
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}
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