/* GTK - The GIMP Toolkit * Copyright (C) 2010 Carlos Garnacho * * 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 2 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 . */ #include "config.h" #include "gtkstylepropertyprivate.h" #include "gtkcssprovider.h" #include "gtkcssparserprivate.h" #include "gtkcssshorthandpropertyprivate.h" #include "gtkcssstylefuncsprivate.h" #include "gtkcssstylepropertyprivate.h" #include "gtkcsstypesprivate.h" #include "gtkintl.h" #include "gtkprivatetypebuiltins.h" enum { PROP_0, PROP_NAME, PROP_VALUE_TYPE }; G_DEFINE_ABSTRACT_TYPE (GtkStyleProperty, _gtk_style_property, G_TYPE_OBJECT) static void gtk_style_property_finalize (GObject *object) { GtkStyleProperty *property = GTK_STYLE_PROPERTY (object); g_warning ("finalizing %s '%s', how could this happen?", G_OBJECT_TYPE_NAME (object), property->name); G_OBJECT_CLASS (_gtk_style_property_parent_class)->finalize (object); } static void gtk_style_property_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkStyleProperty *property = GTK_STYLE_PROPERTY (object); GtkStylePropertyClass *klass = GTK_STYLE_PROPERTY_GET_CLASS (property); switch (prop_id) { case PROP_NAME: property->name = g_value_dup_string (value); g_assert (property->name); g_assert (g_hash_table_lookup (klass->properties, property->name) == NULL); g_hash_table_insert (klass->properties, property->name, property); break; case PROP_VALUE_TYPE: property->value_type = g_value_get_gtype (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_style_property_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkStyleProperty *property = GTK_STYLE_PROPERTY (object); switch (prop_id) { case PROP_NAME: g_value_set_string (value, property->name); break; case PROP_VALUE_TYPE: g_value_set_gtype (value, property->value_type); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void _gtk_style_property_class_init (GtkStylePropertyClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->finalize = gtk_style_property_finalize; object_class->set_property = gtk_style_property_set_property; object_class->get_property = gtk_style_property_get_property; g_object_class_install_property (object_class, PROP_NAME, g_param_spec_string ("name", P_("Property name"), P_("The name of the property"), NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); g_object_class_install_property (object_class, PROP_VALUE_TYPE, g_param_spec_gtype ("value-type", P_("Value type"), P_("The value type returned by GtkStyleContext"), G_TYPE_NONE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); klass->properties = g_hash_table_new (g_str_hash, g_str_equal); } static void _gtk_style_property_init (GtkStyleProperty *property) { property->value_type = G_TYPE_NONE; } /** * _gtk_style_property_parse_value: * @property: the property * @parser: the parser to parse from * * Tries to parse the given @property from the given @parser into * @value. The type that @value will be assigned is dependant on * the parser and no assumptions must be made about it. If the * parsing fails, %FALSE will be returned and @value will be * left uninitialized. * * Only if @property is a #GtkCssShorthandProperty, the @value will * always be a #GtkCssValue whose values can be queried with * _gtk_css_array_value_get_nth(). * * Returns: %NULL on failure or the parsed #GtkCssValue **/ GtkCssValue * _gtk_style_property_parse_value (GtkStyleProperty *property, GtkCssParser *parser) { GtkStylePropertyClass *klass; g_return_val_if_fail (GTK_IS_STYLE_PROPERTY (property), NULL); g_return_val_if_fail (parser != NULL, NULL); klass = GTK_STYLE_PROPERTY_GET_CLASS (property); return klass->parse_value (property, parser); } /** * _gtk_style_property_query: * @property: the property * @value: (out): an uninitialized #GValue to be filled with the * contents of the lookup * @query_func: The function to use to query properties * @query_data: The data to pass to @query_func * * This function is called by gtk_style_properties_get() and in * turn gtk_style_context_get() and similar functions to get the * value to return to code using old APIs. **/ void _gtk_style_property_query (GtkStyleProperty *property, GValue *value, GtkStyleQueryFunc query_func, gpointer query_data) { GtkStylePropertyClass *klass; g_return_if_fail (value != NULL); g_return_if_fail (GTK_IS_STYLE_PROPERTY (property)); g_return_if_fail (query_func != NULL); klass = GTK_STYLE_PROPERTY_GET_CLASS (property); klass->query (property, value, query_func, query_data); } void _gtk_style_property_init_properties (void) { static gboolean initialized = FALSE; if (G_LIKELY (initialized)) return; initialized = TRUE; _gtk_css_style_property_init_properties (); /* initialize shorthands last, they depend on the real properties existing */ _gtk_css_shorthand_property_init_properties (); } /** * _gtk_style_property_lookup: * @name: name of the property to lookup * * Looks up the CSS property with the given @name. If no such * property exists, %NULL is returned. * * Returns: (nullable) (transfer none): The property or %NULL if no * property with the given name exists. **/ GtkStyleProperty * _gtk_style_property_lookup (const char *name) { GtkStylePropertyClass *klass; g_return_val_if_fail (name != NULL, NULL); _gtk_style_property_init_properties (); klass = g_type_class_peek (GTK_TYPE_STYLE_PROPERTY); return g_hash_table_lookup (klass->properties, name); } /** * _gtk_style_property_get_name: * @property: the property to query * * Gets the name of the given property. * * Returns: the name of the property **/ const char * _gtk_style_property_get_name (GtkStyleProperty *property) { g_return_val_if_fail (GTK_IS_STYLE_PROPERTY (property), NULL); return property->name; } /** * _gtk_style_property_get_value_type: * @property: the property to query * * Gets the value type of the @property, if the property is usable * in public API via _gtk_style_property_query(). If the @property is not * usable in that way, %G_TYPE_NONE is returned. * * Returns: the value type in use or %G_TYPE_NONE if none. **/ GType _gtk_style_property_get_value_type (GtkStyleProperty *property) { g_return_val_if_fail (GTK_IS_STYLE_PROPERTY (property), G_TYPE_NONE); return property->value_type; }