/* The GIMP -- an image manipulation program * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * gimpunitstore.c * Copyright (C) 2004 Sven Neumann * * 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 2 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, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "config.h" #include #include "libgimpbase/gimpbase.h" #include "libgimpwidgets/gimpwidgets.h" #include "widgets-types.h" #include "config/gimpconfig-types.h" #include "gimpunitstore.h" enum { PROP_0, PROP_NUM_VALUES }; static GType column_types[GIMP_UNIT_STORE_UNIT_COLUMNS] = { G_TYPE_INVALID, G_TYPE_DOUBLE, G_TYPE_INT, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING }; static void gimp_unit_store_class_init (GimpUnitStoreClass *klass); static void gimp_unit_store_tree_model_init (GtkTreeModelIface *iface); static void gimp_unit_store_finalize (GObject *object); static void gimp_unit_store_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec); static void gimp_unit_store_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec); static GtkTreeModelFlags gimp_unit_store_get_flags (GtkTreeModel *tree_model); static gint gimp_unit_store_get_n_columns (GtkTreeModel *tree_model); static GType gimp_unit_store_get_column_type (GtkTreeModel *tree_model, gint index); static gboolean gimp_unit_store_get_iter (GtkTreeModel *tree_model, GtkTreeIter *iter, GtkTreePath *path); static GtkTreePath *gimp_unit_store_get_path (GtkTreeModel *tree_model, GtkTreeIter *iter); static void gimp_unit_store_tree_model_get_value (GtkTreeModel *tree_model, GtkTreeIter *iter, gint column, GValue *value); static gboolean gimp_unit_store_iter_next (GtkTreeModel *tree_model, GtkTreeIter *iter); static gboolean gimp_unit_store_iter_children (GtkTreeModel *tree_model, GtkTreeIter *iter, GtkTreeIter *parent); static gboolean gimp_unit_store_iter_has_child (GtkTreeModel *tree_model, GtkTreeIter *iter); static gint gimp_unit_store_iter_n_children (GtkTreeModel *tree_model, GtkTreeIter *iter); static gboolean gimp_unit_store_iter_nth_child (GtkTreeModel *tree_model, GtkTreeIter *iter, GtkTreeIter *parent, gint n); static gboolean gimp_unit_store_iter_parent (GtkTreeModel *tree_model, GtkTreeIter *iter, GtkTreeIter *child); static GObjectClass *parent_class = NULL; GType gimp_unit_store_get_type (void) { static GType store_type = 0; if (!store_type) { static const GTypeInfo store_info = { sizeof (GimpUnitStoreClass), NULL, /* base_init */ NULL, /* base_finalize */ (GClassInitFunc) gimp_unit_store_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GimpUnitStore), 0, /* n_preallocs */ NULL /* instance_init */ }; static const GInterfaceInfo tree_model_info = { (GInterfaceInitFunc) gimp_unit_store_tree_model_init, NULL, NULL }; store_type = g_type_register_static (G_TYPE_OBJECT, "GimpUnitStore", &store_info, 0); g_type_add_interface_static (store_type, GTK_TYPE_TREE_MODEL, &tree_model_info); } return store_type; } static void gimp_unit_store_class_init (GimpUnitStoreClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); column_types[GIMP_UNIT_STORE_UNIT] = GIMP_TYPE_UNIT; parent_class = g_type_class_peek_parent (klass); object_class->finalize = gimp_unit_store_finalize; object_class->set_property = gimp_unit_store_set_property; object_class->get_property = gimp_unit_store_get_property; g_object_class_install_property (object_class, PROP_NUM_VALUES, g_param_spec_int ("num-values", NULL, NULL, 0, G_MAXINT, 0, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); }; static void gimp_unit_store_tree_model_init (GtkTreeModelIface *iface) { iface->get_flags = gimp_unit_store_get_flags; iface->get_n_columns = gimp_unit_store_get_n_columns; iface->get_column_type = gimp_unit_store_get_column_type; iface->get_iter = gimp_unit_store_get_iter; iface->get_path = gimp_unit_store_get_path; iface->get_value = gimp_unit_store_tree_model_get_value; iface->iter_next = gimp_unit_store_iter_next; iface->iter_children = gimp_unit_store_iter_children; iface->iter_has_child = gimp_unit_store_iter_has_child; iface->iter_n_children = gimp_unit_store_iter_n_children; iface->iter_nth_child = gimp_unit_store_iter_nth_child; iface->iter_parent = gimp_unit_store_iter_parent; } static void gimp_unit_store_finalize (GObject *object) { GimpUnitStore *store = GIMP_UNIT_STORE (object); if (store->num_values > 0) { g_free (store->values); g_free (store->resolutions); store->num_values = 0; } G_OBJECT_CLASS (parent_class)->finalize (object); } static void gimp_unit_store_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { GimpUnitStore *store = GIMP_UNIT_STORE (object); switch (property_id) { case PROP_NUM_VALUES: g_return_if_fail (store->num_values == 0); store->num_values = g_value_get_int (value); if (store->num_values) { store->values = g_new0 (gdouble, store->num_values); store->resolutions = g_new0 (gdouble, store->num_values); } break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static void gimp_unit_store_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { GimpUnitStore *store = GIMP_UNIT_STORE (object); switch (property_id) { case PROP_NUM_VALUES: g_value_set_int (value, store->num_values); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static GtkTreeModelFlags gimp_unit_store_get_flags (GtkTreeModel *tree_model) { return GTK_TREE_MODEL_ITERS_PERSIST | GTK_TREE_MODEL_LIST_ONLY; } static gint gimp_unit_store_get_n_columns (GtkTreeModel *tree_model) { GimpUnitStore *store = GIMP_UNIT_STORE (tree_model); return GIMP_UNIT_STORE_UNIT_COLUMNS + store->num_values; } static GType gimp_unit_store_get_column_type (GtkTreeModel *tree_model, gint index) { g_return_val_if_fail (index >= 0, G_TYPE_INVALID); if (index < GIMP_UNIT_STORE_UNIT_COLUMNS) return column_types[index]; return G_TYPE_DOUBLE; } static gboolean gimp_unit_store_get_iter (GtkTreeModel *tree_model, GtkTreeIter *iter, GtkTreePath *path) { gint unit; g_return_val_if_fail (gtk_tree_path_get_depth (path) > 0, FALSE); unit = gtk_tree_path_get_indices (path)[0]; if (unit >= 0 && unit < gimp_unit_get_number_of_units ()) { iter->user_data = GINT_TO_POINTER (unit); return TRUE; } return FALSE; } static GtkTreePath * gimp_unit_store_get_path (GtkTreeModel *tree_model, GtkTreeIter *iter) { GtkTreePath *path = gtk_tree_path_new (); gtk_tree_path_append_index (path, GPOINTER_TO_INT (iter->user_data)); return path; } static void gimp_unit_store_tree_model_get_value (GtkTreeModel *tree_model, GtkTreeIter *iter, gint column, GValue *value) { GimpUnitStore *store = GIMP_UNIT_STORE (tree_model); GimpUnit unit; g_return_if_fail (column >= 0 && column < GIMP_UNIT_STORE_UNIT_COLUMNS + store->num_values); g_value_init (value, column < GIMP_UNIT_STORE_UNIT_COLUMNS ? column_types[column] : G_TYPE_DOUBLE); unit = GPOINTER_TO_INT (iter->user_data); if (unit >= 0 && unit < gimp_unit_get_number_of_units ()) { switch (column) { case GIMP_UNIT_STORE_UNIT: g_value_set_int (value, unit); break; case GIMP_UNIT_STORE_UNIT_FACTOR: g_value_set_double (value, gimp_unit_get_factor (unit)); break; case GIMP_UNIT_STORE_UNIT_DIGITS: g_value_set_int (value, gimp_unit_get_digits (unit)); break; case GIMP_UNIT_STORE_UNIT_IDENTIFIER: g_value_set_static_string (value, gimp_unit_get_identifier (unit)); break; case GIMP_UNIT_STORE_UNIT_SYMBOL: g_value_set_static_string (value, gimp_unit_get_symbol (unit)); break; case GIMP_UNIT_STORE_UNIT_ABBREVIATION: g_value_set_static_string (value, gimp_unit_get_abbreviation (unit)); break; case GIMP_UNIT_STORE_UNIT_SINGULAR: g_value_set_static_string (value, gimp_unit_get_singular (unit)); break; case GIMP_UNIT_STORE_UNIT_PLURAL: g_value_set_static_string (value, gimp_unit_get_plural (unit)); break; default: column -= GIMP_UNIT_STORE_UNIT_COLUMNS; if (unit == GIMP_UNIT_PIXEL) { g_value_set_double (value, store->values[column]); } else if (store->resolutions[column]) { g_value_set_double (value, store->values[column] * gimp_unit_get_factor (unit) / store->resolutions[column]); } break; } } } static gboolean gimp_unit_store_iter_next (GtkTreeModel *tree_model, GtkTreeIter *iter) { gint unit = GPOINTER_TO_INT (iter->user_data); unit++; if (unit > 0 && unit < gimp_unit_get_number_of_units ()) { iter->user_data = GINT_TO_POINTER (unit); return TRUE; } return FALSE; } static gboolean gimp_unit_store_iter_children (GtkTreeModel *tree_model, GtkTreeIter *iter, GtkTreeIter *parent) { /* this is a list, nodes have no children */ if (parent) return FALSE; iter->user_data = GINT_TO_POINTER (0); return TRUE; } static gboolean gimp_unit_store_iter_has_child (GtkTreeModel *tree_model, GtkTreeIter *iter) { return FALSE; } static gint gimp_unit_store_iter_n_children (GtkTreeModel *tree_model, GtkTreeIter *iter) { if (iter) return 0; return gimp_unit_get_number_of_units (); } static gboolean gimp_unit_store_iter_nth_child (GtkTreeModel *tree_model, GtkTreeIter *iter, GtkTreeIter *parent, gint n) { GimpUnitStore *store; if (parent) return FALSE; store = GIMP_UNIT_STORE (tree_model); if (n >= 0 && n < gimp_unit_get_number_of_units ()) { iter->user_data = GINT_TO_POINTER (n); return TRUE; } return FALSE; } static gboolean gimp_unit_store_iter_parent (GtkTreeModel *tree_model, GtkTreeIter *iter, GtkTreeIter *child) { return FALSE; } GimpUnitStore * gimp_unit_store_new (gint num_values) { return g_object_new (GIMP_TYPE_UNIT_STORE, "num-values", num_values, NULL); } void gimp_unit_store_set_pixel_value (GimpUnitStore *store, gint index, gdouble value) { g_return_if_fail (GIMP_IS_UNIT_STORE (store)); g_return_if_fail (index > 0 && index < store->num_values); store->values[index] = value; } void gimp_unit_store_set_pixel_values (GimpUnitStore *store, gdouble first_value, ...) { va_list args; gint i; g_return_if_fail (GIMP_IS_UNIT_STORE (store)); va_start (args, first_value); for (i = 0; i < store->num_values; i++) { store->values[i] = first_value; first_value = va_arg (args, gdouble); } va_end (args); } void gimp_unit_store_set_resolution (GimpUnitStore *store, gint index, gdouble resolution) { g_return_if_fail (GIMP_IS_UNIT_STORE (store)); g_return_if_fail (index > 0 && index < store->num_values); store->resolutions[index] = resolution; } void gimp_unit_store_set_resolutions (GimpUnitStore *store, gdouble first_resolution, ...) { va_list args; gint i; g_return_if_fail (GIMP_IS_UNIT_STORE (store)); va_start (args, first_resolution); for (i = 0; i < store->num_values; i++) { store->resolutions[i] = first_resolution; first_resolution = va_arg (args, gdouble); } va_end (args); } gdouble gimp_unit_store_get_value (GimpUnitStore *store, GimpUnit unit, gint index) { GtkTreeIter iter; GValue value = { 0, }; g_return_val_if_fail (GIMP_IS_UNIT_STORE (store), 0.0); g_return_val_if_fail (index >= 0 && index < store->num_values, 0.0); iter.user_data = GINT_TO_POINTER (unit); gimp_unit_store_tree_model_get_value (GTK_TREE_MODEL (store), &iter, GIMP_UNIT_STORE_FIRST_VALUE + index, &value); return g_value_get_double (&value); } void gimp_unit_store_get_values (GimpUnitStore *store, GimpUnit unit, gdouble *first_value, ...) { va_list args; gint i; g_return_if_fail (GIMP_IS_UNIT_STORE (store)); va_start (args, first_value); for (i = 0; i < store->num_values; i++) { if (first_value) *first_value = gimp_unit_store_get_value (store, unit, i); first_value = va_arg (args, gdouble *); } va_end (args); }