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Diffstat (limited to '')
| -rw-r--r-- | app/widgets/gimpimageparasiteview.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/app/widgets/gimpimageparasiteview.c b/app/widgets/gimpimageparasiteview.c new file mode 100644 index 0000000..76e060d --- /dev/null +++ b/app/widgets/gimpimageparasiteview.c @@ -0,0 +1,240 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * GimpImageParasiteView + * Copyright (C) 2006 Sven Neumann <sven@gimp.org> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <string.h> + +#include <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpbase/gimpbase.h" +#include "libgimpwidgets/gimpwidgets.h" + +#include "widgets-types.h" + +#include "core/gimp.h" +#include "core/gimpimage.h" +#include "core/gimpmarshal.h" + +#include "gimpimageparasiteview.h" + + +enum +{ + PROP_0, + PROP_IMAGE, + PROP_PARASITE +}; + +enum +{ + UPDATE, + LAST_SIGNAL +}; + + +static void gimp_image_parasite_view_constructed (GObject *object); +static void gimp_image_parasite_view_finalize (GObject *object); +static void gimp_image_parasite_view_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec); +static void gimp_image_parasite_view_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec); + +static void gimp_image_parasite_view_parasite_changed (GimpImageParasiteView *view, + const gchar *name); +static void gimp_image_parasite_view_update (GimpImageParasiteView *view); + + +G_DEFINE_TYPE (GimpImageParasiteView, gimp_image_parasite_view, GTK_TYPE_BOX) + +#define parent_class gimp_image_parasite_view_parent_class + +static guint view_signals[LAST_SIGNAL] = { 0 }; + + +static void +gimp_image_parasite_view_class_init (GimpImageParasiteViewClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + view_signals[UPDATE] = + g_signal_new ("update", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (GimpImageParasiteViewClass, update), + NULL, NULL, + gimp_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + object_class->constructed = gimp_image_parasite_view_constructed; + object_class->finalize = gimp_image_parasite_view_finalize; + object_class->set_property = gimp_image_parasite_view_set_property; + object_class->get_property = gimp_image_parasite_view_get_property; + + klass->update = NULL; + + g_object_class_install_property (object_class, PROP_IMAGE, + g_param_spec_object ("image", NULL, NULL, + GIMP_TYPE_IMAGE, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT_ONLY)); + g_object_class_install_property (object_class, PROP_PARASITE, + g_param_spec_string ("parasite", NULL, NULL, + NULL, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT_ONLY)); +} + +static void +gimp_image_parasite_view_init (GimpImageParasiteView *view) +{ + gtk_orientable_set_orientation (GTK_ORIENTABLE (view), + GTK_ORIENTATION_VERTICAL); + + view->parasite = NULL; +} + +static void +gimp_image_parasite_view_constructed (GObject *object) +{ + GimpImageParasiteView *view = GIMP_IMAGE_PARASITE_VIEW (object); + + G_OBJECT_CLASS (parent_class)->constructed (object); + + gimp_assert (view->parasite != NULL); + gimp_assert (view->image != NULL); + + g_signal_connect_object (view->image, "parasite-attached", + G_CALLBACK (gimp_image_parasite_view_parasite_changed), + G_OBJECT (view), + G_CONNECT_SWAPPED); + g_signal_connect_object (view->image, "parasite-detached", + G_CALLBACK (gimp_image_parasite_view_parasite_changed), + G_OBJECT (view), + G_CONNECT_SWAPPED); + + gimp_image_parasite_view_update (view); +} + +static void +gimp_image_parasite_view_finalize (GObject *object) +{ + GimpImageParasiteView *view = GIMP_IMAGE_PARASITE_VIEW (object); + + g_clear_pointer (&view->parasite, g_free); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static void +gimp_image_parasite_view_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + GimpImageParasiteView *view = GIMP_IMAGE_PARASITE_VIEW (object); + + switch (property_id) + { + case PROP_IMAGE: + view->image = g_value_get_object (value); + break; + case PROP_PARASITE: + view->parasite = g_value_dup_string (value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_image_parasite_view_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + GimpImageParasiteView *view = GIMP_IMAGE_PARASITE_VIEW (object); + + switch (property_id) + { + case PROP_IMAGE: + g_value_set_object (value, view->image); + break; + case PROP_PARASITE: + g_value_set_string (value, view->parasite); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +GtkWidget * +gimp_image_parasite_view_new (GimpImage *image, + const gchar *parasite) +{ + g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL); + g_return_val_if_fail (parasite != NULL, NULL); + + return g_object_new (GIMP_TYPE_IMAGE_PARASITE_VIEW, + "image", image, + "parasite", parasite, + NULL); +} + + +GimpImage * +gimp_image_parasite_view_get_image (GimpImageParasiteView *view) +{ + g_return_val_if_fail (GIMP_IS_IMAGE_PARASITE_VIEW (view), NULL); + + return view->image; +} + +const GimpParasite * +gimp_image_parasite_view_get_parasite (GimpImageParasiteView *view) +{ + g_return_val_if_fail (GIMP_IS_IMAGE_PARASITE_VIEW (view), NULL); + + return gimp_image_parasite_find (view->image, view->parasite); +} + + +/* private functions */ + +static void +gimp_image_parasite_view_parasite_changed (GimpImageParasiteView *view, + const gchar *name) +{ + if (name && view->parasite && strcmp (name, view->parasite) == 0) + gimp_image_parasite_view_update (view); +} + +static void +gimp_image_parasite_view_update (GimpImageParasiteView *view) +{ + g_signal_emit (view, view_signals[UPDATE], 0); +} |