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-rw-r--r--libgimpwidgets/gimpintstore.c351
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+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpintstore.c
+ * Copyright (C) 2004-2007 Sven Neumann <sven@gimp.org>
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <gtk/gtk.h>
+
+#include "gimpwidgetstypes.h"
+
+#include "gimpintstore.h"
+
+#include "libgimp/libgimp-intl.h"
+
+
+/**
+ * SECTION: gimpintstore
+ * @title: GimpIntStore
+ * @short_description: A model for integer based name-value pairs
+ * (e.g. enums)
+ *
+ * A model for integer based name-value pairs (e.g. enums)
+ **/
+
+
+enum
+{
+ PROP_0,
+ PROP_USER_DATA_TYPE
+};
+
+typedef struct
+{
+ GType user_data_type;
+} GimpIntStorePrivate;
+
+
+static void gimp_int_store_tree_model_init (GtkTreeModelIface *iface);
+
+static void gimp_int_store_constructed (GObject *object);
+static void gimp_int_store_finalize (GObject *object);
+static void gimp_int_store_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_int_store_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static void gimp_int_store_row_inserted (GtkTreeModel *model,
+ GtkTreePath *path,
+ GtkTreeIter *iter);
+static void gimp_int_store_row_deleted (GtkTreeModel *model,
+ GtkTreePath *path);
+static void gimp_int_store_add_empty (GimpIntStore *store);
+
+
+G_DEFINE_TYPE_WITH_CODE (GimpIntStore, gimp_int_store, GTK_TYPE_LIST_STORE,
+ G_ADD_PRIVATE (GimpIntStore)
+ G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_MODEL,
+ gimp_int_store_tree_model_init))
+
+#define GIMP_INT_STORE_GET_PRIVATE(obj) \
+ ((GimpIntStorePrivate *) gimp_int_store_get_instance_private ((GimpIntStore *) (obj)))
+
+#define parent_class gimp_int_store_parent_class
+
+static GtkTreeModelIface *parent_iface = NULL;
+
+
+static void
+gimp_int_store_class_init (GimpIntStoreClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->constructed = gimp_int_store_constructed;
+ object_class->finalize = gimp_int_store_finalize;
+ object_class->set_property = gimp_int_store_set_property;
+ object_class->get_property = gimp_int_store_get_property;
+
+ /**
+ * GimpIntStore:user-data-type:
+ *
+ * Sets the #GType for the GIMP_INT_STORE_USER_DATA column.
+ *
+ * You need to set this property when constructing the store if you want
+ * to use the GIMP_INT_STORE_USER_DATA column and want to have the store
+ * handle ref-counting of your user data.
+ *
+ * Since: 2.4
+ */
+ g_object_class_install_property (object_class,
+ PROP_USER_DATA_TYPE,
+ g_param_spec_gtype ("user-data-type",
+ "User Data Type",
+ "The GType of the user_data column",
+ G_TYPE_NONE,
+ G_PARAM_CONSTRUCT_ONLY |
+ GIMP_PARAM_READWRITE));
+}
+
+static void
+gimp_int_store_tree_model_init (GtkTreeModelIface *iface)
+{
+ parent_iface = g_type_interface_peek_parent (iface);
+
+ iface->row_inserted = gimp_int_store_row_inserted;
+ iface->row_deleted = gimp_int_store_row_deleted;
+}
+
+static void
+gimp_int_store_init (GimpIntStore *store)
+{
+ store->empty_iter = NULL;
+}
+
+static void
+gimp_int_store_constructed (GObject *object)
+{
+ GimpIntStore *store = GIMP_INT_STORE (object);
+ GimpIntStorePrivate *priv = GIMP_INT_STORE_GET_PRIVATE (store);
+ GType types[GIMP_INT_STORE_NUM_COLUMNS];
+
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ types[GIMP_INT_STORE_VALUE] = G_TYPE_INT;
+ types[GIMP_INT_STORE_LABEL] = G_TYPE_STRING;
+ types[GIMP_INT_STORE_ICON_NAME] = G_TYPE_STRING;
+ types[GIMP_INT_STORE_PIXBUF] = GDK_TYPE_PIXBUF;
+ types[GIMP_INT_STORE_USER_DATA] = (priv->user_data_type != G_TYPE_NONE ?
+ priv->user_data_type : G_TYPE_POINTER);
+ types[GIMP_INT_STORE_ABBREV] = G_TYPE_STRING;
+
+ gtk_list_store_set_column_types (GTK_LIST_STORE (store),
+ GIMP_INT_STORE_NUM_COLUMNS, types);
+
+ gimp_int_store_add_empty (store);
+}
+
+static void
+gimp_int_store_finalize (GObject *object)
+{
+ GimpIntStore *store = GIMP_INT_STORE (object);
+
+ if (store->empty_iter)
+ {
+ gtk_tree_iter_free (store->empty_iter);
+ store->empty_iter = NULL;
+ }
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_int_store_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpIntStorePrivate *priv = GIMP_INT_STORE_GET_PRIVATE (object);
+
+ switch (property_id)
+ {
+ case PROP_USER_DATA_TYPE:
+ priv->user_data_type = g_value_get_gtype (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_int_store_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpIntStorePrivate *priv = GIMP_INT_STORE_GET_PRIVATE (object);
+
+ switch (property_id)
+ {
+ case PROP_USER_DATA_TYPE:
+ g_value_set_gtype (value, priv->user_data_type);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_int_store_row_inserted (GtkTreeModel *model,
+ GtkTreePath *path,
+ GtkTreeIter *iter)
+{
+ GimpIntStore *store = GIMP_INT_STORE (model);
+
+ if (parent_iface->row_inserted)
+ parent_iface->row_inserted (model, path, iter);
+
+ if (store->empty_iter &&
+ memcmp (iter, store->empty_iter, sizeof (GtkTreeIter)))
+ {
+ gtk_list_store_remove (GTK_LIST_STORE (store), store->empty_iter);
+ gtk_tree_iter_free (store->empty_iter);
+ store->empty_iter = NULL;
+ }
+}
+
+static void
+gimp_int_store_row_deleted (GtkTreeModel *model,
+ GtkTreePath *path)
+{
+ if (parent_iface->row_deleted)
+ parent_iface->row_deleted (model, path);
+}
+
+static void
+gimp_int_store_add_empty (GimpIntStore *store)
+{
+ GtkTreeIter iter = { 0, };
+
+ g_return_if_fail (store->empty_iter == NULL);
+
+ gtk_list_store_prepend (GTK_LIST_STORE (store), &iter);
+ gtk_list_store_set (GTK_LIST_STORE (store), &iter,
+ GIMP_INT_STORE_VALUE, -1,
+ /* This string appears in an empty menu as in
+ * "nothing selected and nothing to select"
+ */
+ GIMP_INT_STORE_LABEL, (_("(Empty)")),
+ -1);
+
+ store->empty_iter = gtk_tree_iter_copy (&iter);
+}
+
+/**
+ * gimp_int_store_new:
+ *
+ * Creates a #GtkListStore with a number of useful columns.
+ * #GimpIntStore is especially useful if the items you want to store
+ * are identified using an integer value.
+ *
+ * Return value: a new #GimpIntStore.
+ *
+ * Since: 2.2
+ **/
+GtkListStore *
+gimp_int_store_new (void)
+{
+ return g_object_new (GIMP_TYPE_INT_STORE, NULL);
+}
+
+/**
+ * gimp_int_store_lookup_by_value:
+ * @model: a #GimpIntStore
+ * @value: an integer value to lookup in the @model
+ * @iter: return location for the iter of the given @value
+ *
+ * Iterate over the @model looking for @value.
+ *
+ * Return value: %TRUE if the value has been located and @iter is
+ * valid, %FALSE otherwise.
+ *
+ * Since: 2.2
+ **/
+gboolean
+gimp_int_store_lookup_by_value (GtkTreeModel *model,
+ gint value,
+ GtkTreeIter *iter)
+{
+ gboolean iter_valid;
+
+ g_return_val_if_fail (GTK_IS_TREE_MODEL (model), FALSE);
+ g_return_val_if_fail (iter != NULL, FALSE);
+
+ for (iter_valid = gtk_tree_model_get_iter_first (model, iter);
+ iter_valid;
+ iter_valid = gtk_tree_model_iter_next (model, iter))
+ {
+ gint this;
+
+ gtk_tree_model_get (model, iter,
+ GIMP_INT_STORE_VALUE, &this,
+ -1);
+ if (this == value)
+ break;
+ }
+
+ return iter_valid;
+}
+
+/**
+ * gimp_int_store_lookup_by_user_data:
+ * @model: a #GimpIntStore
+ * @user_data: a gpointer "user-data" to lookup in the @model
+ * @iter: return location for the iter of the given @user_data
+ *
+ * Iterate over the @model looking for @user_data.
+ *
+ * Return value: %TRUE if the user-data has been located and @iter is
+ * valid, %FALSE otherwise.
+ *
+ * Since: 2.10
+ **/
+gboolean
+gimp_int_store_lookup_by_user_data (GtkTreeModel *model,
+ gpointer user_data,
+ GtkTreeIter *iter)
+{
+ gboolean iter_valid = FALSE;
+
+ g_return_val_if_fail (GTK_IS_TREE_MODEL (model), FALSE);
+ g_return_val_if_fail (iter != NULL, FALSE);
+
+ for (iter_valid = gtk_tree_model_get_iter_first (model, iter);
+ iter_valid;
+ iter_valid = gtk_tree_model_iter_next (model, iter))
+ {
+ gpointer this;
+
+ gtk_tree_model_get (model, iter,
+ GIMP_INT_STORE_USER_DATA, &this,
+ -1);
+ if (this == user_data)
+ break;
+ }
+
+ return (gboolean) iter_valid;
+}
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