+++ /dev/null
-/* GTK - The GIMP Toolkit
- * Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.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 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 <http://www.gnu.org/licenses/>.
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <gobject/gvaluecollector.h>
-#include <cairo-gobject.h>
-
-#include "gtkstyleprovider.h"
-#include "gtkcssshorthandpropertyprivate.h"
-#include "gtkcsstypedvalueprivate.h"
-#include "gtkcsstypesprivate.h"
-
-#include "gtkprivatetypebuiltins.h"
-#include "gtkstylepropertyprivate.h"
-#include "gtkstyleproviderprivate.h"
-#include "gtkintl.h"
-
-#include "deprecated/gtkgradient.h"
-#include "deprecated/gtksymboliccolorprivate.h"
-
-G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
-
-/**
- * SECTION:gtkstyleproperties
- * @Short_description: Store for style property information
- * @Title: GtkStyleProperties
- *
- * GtkStyleProperties provides the storage for style information
- * that is used by #GtkStyleContext and other #GtkStyleProvider
- * implementations.
- *
- * Before style properties can be stored in GtkStyleProperties, they
- * must be registered with gtk_style_properties_register_property().
- *
- * Unless you are writing a #GtkStyleProvider implementation, you
- * are unlikely to use this API directly, as gtk_style_context_get()
- * and its variants are the preferred way to access styling information
- * from widget implementations and theming engine implementations
- * should use the APIs provided by #GtkThemingEngine instead.
- *
- * #GtkStyleProperties has been deprecated in GTK 3.16. The CSS
- * machinery does not use it anymore and all users of this object
- * have been deprecated.
- */
-
-typedef struct PropertyData PropertyData;
-typedef struct ValueData ValueData;
-
-struct ValueData
-{
- GtkStateFlags state;
- GtkCssValue *value;
-};
-
-struct PropertyData
-{
- GArray *values;
-};
-
-struct _GtkStylePropertiesPrivate
-{
- GHashTable *color_map;
- GHashTable *properties;
-};
-
-static void gtk_style_properties_provider_init (GtkStyleProviderIface *iface);
-static void gtk_style_properties_provider_private_init (GtkStyleProviderPrivateInterface *iface);
-static void gtk_style_properties_finalize (GObject *object);
-
-
-G_DEFINE_TYPE_WITH_CODE (GtkStyleProperties, gtk_style_properties, G_TYPE_OBJECT,
- G_ADD_PRIVATE (GtkStyleProperties)
- G_IMPLEMENT_INTERFACE (GTK_TYPE_STYLE_PROVIDER,
- gtk_style_properties_provider_init)
- G_IMPLEMENT_INTERFACE (GTK_TYPE_STYLE_PROVIDER_PRIVATE,
- gtk_style_properties_provider_private_init));
-
-static void
-gtk_style_properties_class_init (GtkStylePropertiesClass *klass)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
- object_class->finalize = gtk_style_properties_finalize;
-}
-
-static PropertyData *
-property_data_new (void)
-{
- PropertyData *data;
-
- data = g_slice_new0 (PropertyData);
- data->values = g_array_new (FALSE, FALSE, sizeof (ValueData));
-
- return data;
-}
-
-static void
-property_data_remove_values (PropertyData *data)
-{
- guint i;
-
- for (i = 0; i < data->values->len; i++)
- {
- ValueData *value_data;
-
- value_data = &g_array_index (data->values, ValueData, i);
-
- _gtk_css_value_unref (value_data->value);
- value_data->value = NULL;
- }
-
- if (data->values->len > 0)
- g_array_remove_range (data->values, 0, data->values->len);
-}
-
-static void
-property_data_free (PropertyData *data)
-{
- property_data_remove_values (data);
- g_array_free (data->values, TRUE);
- g_slice_free (PropertyData, data);
-}
-
-static gboolean
-property_data_find_position (PropertyData *data,
- GtkStateFlags state,
- guint *pos)
-{
- gint min, max, mid;
- gboolean found = FALSE;
- guint position;
-
- if (pos)
- *pos = 0;
-
- if (data->values->len == 0)
- return FALSE;
-
- /* Find position for the given state, or the position where
- * it would be if not found, the array is ordered by the
- * state flags.
- */
- min = 0;
- max = data->values->len - 1;
-
- do
- {
- ValueData *value_data;
-
- mid = (min + max) / 2;
- value_data = &g_array_index (data->values, ValueData, mid);
-
- if (value_data->state == state)
- {
- found = TRUE;
- position = mid;
- }
- else if (value_data->state < state)
- position = min = mid + 1;
- else
- {
- max = mid - 1;
- position = mid;
- }
- }
- while (!found && min <= max);
-
- if (pos)
- *pos = position;
-
- return found;
-}
-
-static ValueData *
-property_data_get_value (PropertyData *data,
- GtkStateFlags state)
-{
- guint pos;
-
- if (!property_data_find_position (data, state, &pos))
- {
- ValueData new = { 0 };
-
- new.state = state;
- g_array_insert_val (data->values, pos, new);
- }
-
- return &g_array_index (data->values, ValueData, pos);
-}
-
-static GtkCssValue *
-property_data_match_state (PropertyData *data,
- GtkStateFlags state)
-{
- guint pos;
- gint i;
-
- if (property_data_find_position (data, state, &pos))
- {
- ValueData *val_data;
-
- /* Exact match */
- val_data = &g_array_index (data->values, ValueData, pos);
- return val_data->value;
- }
-
- if (pos >= data->values->len)
- pos = data->values->len - 1;
-
- /* No exact match, go downwards the list to find
- * the closest match to the given state flags, as
- * a side effect, there is an implicit precedence
- * of higher flags over the smaller ones.
- */
- for (i = pos; i >= 0; i--)
- {
- ValueData *val_data;
-
- val_data = &g_array_index (data->values, ValueData, i);
-
- /* Check whether any of the requested
- * flags are set, and no other flags are.
- *
- * Also, no flags acts as a wildcard, such
- * value should be always in the first position
- * in the array (if present) anyways.
- */
- if (val_data->state == 0 ||
- ((val_data->state & state) != 0 &&
- (val_data->state & ~state) == 0))
- return val_data->value;
- }
-
- return NULL;
-}
-
-static void
-gtk_style_properties_init (GtkStyleProperties *props)
-{
- props->priv = gtk_style_properties_get_instance_private (props);
- props->priv->properties = g_hash_table_new_full (NULL, NULL, NULL,
- (GDestroyNotify) property_data_free);
-}
-
-static void
-gtk_style_properties_finalize (GObject *object)
-{
- GtkStylePropertiesPrivate *priv;
- GtkStyleProperties *props;
-
- props = GTK_STYLE_PROPERTIES (object);
- priv = props->priv;
- g_hash_table_destroy (priv->properties);
-
- if (priv->color_map)
- g_hash_table_destroy (priv->color_map);
-
- G_OBJECT_CLASS (gtk_style_properties_parent_class)->finalize (object);
-}
-
-static void
-gtk_style_properties_provider_init (GtkStyleProviderIface *iface)
-{
-}
-
-static GtkCssValue *
-gtk_style_properties_provider_get_color (GtkStyleProviderPrivate *provider,
- const char *name)
-{
- GtkSymbolicColor *symbolic;
-
- symbolic = gtk_style_properties_lookup_color (GTK_STYLE_PROPERTIES (provider), name);
- if (symbolic == NULL)
- return NULL;
-
- return _gtk_symbolic_color_get_css_value (symbolic);
-}
-
-static void
-gtk_style_properties_provider_lookup (GtkStyleProviderPrivate *provider,
- const GtkCssMatcher *matcher,
- GtkCssLookup *lookup,
- GtkCssChange *change)
-{
- GtkStyleProperties *props;
- GtkStylePropertiesPrivate *priv;
- GHashTableIter iter;
- gpointer key, value;
-
- props = GTK_STYLE_PROPERTIES (provider);
- priv = props->priv;
-
- /* Merge symbolic style properties */
- g_hash_table_iter_init (&iter, priv->properties);
-
- while (g_hash_table_iter_next (&iter, &key, &value))
- {
- GtkCssStyleProperty *prop = key;
- PropertyData *data = value;
- GtkCssValue *val;
- guint id;
-
- id = _gtk_css_style_property_get_id (prop);
-
- if (!_gtk_css_lookup_is_missing (lookup, id))
- continue;
-
- val = property_data_match_state (data, _gtk_css_matcher_get_state (matcher));
- if (val == NULL)
- continue;
-
- _gtk_css_lookup_set (lookup, id, NULL, val);
- }
-
- if (change)
- *change = GTK_CSS_CHANGE_STATE;
-}
-
-static void
-gtk_style_properties_provider_private_init (GtkStyleProviderPrivateInterface *iface)
-{
- iface->get_color = gtk_style_properties_provider_get_color;
- iface->lookup = gtk_style_properties_provider_lookup;
-}
-
-/* GtkStyleProperties methods */
-
-/**
- * gtk_style_properties_new:
- *
- * Returns a newly created #GtkStyleProperties
- *
- * Returns: a new #GtkStyleProperties
- *
- * Deprecated: 3.16: #GtkStyleProperties are deprecated.
- **/
-GtkStyleProperties *
-gtk_style_properties_new (void)
-{
- return g_object_new (GTK_TYPE_STYLE_PROPERTIES, NULL);
-}
-
-/**
- * gtk_style_properties_map_color:
- * @props: a #GtkStyleProperties
- * @name: color name
- * @color: #GtkSymbolicColor to map @name to
- *
- * Maps @color so it can be referenced by @name. See
- * gtk_style_properties_lookup_color()
- *
- * Since: 3.0
- *
- * Deprecated: 3.8: #GtkSymbolicColor is deprecated.
- **/
-void
-gtk_style_properties_map_color (GtkStyleProperties *props,
- const gchar *name,
- GtkSymbolicColor *color)
-{
- GtkStylePropertiesPrivate *priv;
-
- g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
- g_return_if_fail (name != NULL);
- g_return_if_fail (color != NULL);
-
- priv = props->priv;
-
- if (G_UNLIKELY (!priv->color_map))
- priv->color_map = g_hash_table_new_full (g_str_hash,
- g_str_equal,
- (GDestroyNotify) g_free,
- (GDestroyNotify) gtk_symbolic_color_unref);
-
- g_hash_table_replace (priv->color_map,
- g_strdup (name),
- gtk_symbolic_color_ref (color));
-
- _gtk_style_provider_private_changed (GTK_STYLE_PROVIDER_PRIVATE (props));
-}
-
-/**
- * gtk_style_properties_lookup_color:
- * @props: a #GtkStyleProperties
- * @name: color name to lookup
- *
- * Returns the symbolic color that is mapped
- * to @name.
- *
- * Returns: (transfer none): The mapped color
- *
- * Since: 3.0
- *
- * Deprecated: 3.8: #GtkSymbolicColor is deprecated.
- **/
-GtkSymbolicColor *
-gtk_style_properties_lookup_color (GtkStyleProperties *props,
- const gchar *name)
-{
- GtkStylePropertiesPrivate *priv;
-
- g_return_val_if_fail (GTK_IS_STYLE_PROPERTIES (props), NULL);
- g_return_val_if_fail (name != NULL, NULL);
-
- priv = props->priv;
-
- if (!priv->color_map)
- return NULL;
-
- return g_hash_table_lookup (priv->color_map, name);
-}
-
-typedef struct {
- GtkStyleProperties *props;
- GtkStateFlags state;
-} StyleQueryData;
-
-static GtkCssValue *
-style_query_func (guint id,
- gpointer data)
-{
- StyleQueryData *query = data;
- PropertyData *prop;
-
- prop = g_hash_table_lookup (query->props->priv->properties,
- _gtk_css_style_property_lookup_by_id (id));
- if (prop == NULL)
- return NULL;
-
- return property_data_match_state (prop, query->state);
-}
-
-/**
- * gtk_style_properties_get_property:
- * @props: a #GtkStyleProperties
- * @property: style property name
- * @state: state to retrieve the property value for
- * @value: (out) (transfer full): return location for the style property value.
- *
- * Gets a style property from @props for the given state. When done with @value,
- * g_value_unset() needs to be called to free any allocated memory.
- *
- * Returns: %TRUE if the property exists in @props, %FALSE otherwise
- *
- * Since: 3.0
- *
- * Deprecated: 3.16: #GtkStyleProperties are deprecated.
- **/
-gboolean
-gtk_style_properties_get_property (GtkStyleProperties *props,
- const gchar *property,
- GtkStateFlags state,
- GValue *value)
-{
- StyleQueryData query = { props, state };
- GtkStyleProperty *node;
-
- g_return_val_if_fail (GTK_IS_STYLE_PROPERTIES (props), FALSE);
- g_return_val_if_fail (property != NULL, FALSE);
- g_return_val_if_fail (value != NULL, FALSE);
-
- node = _gtk_style_property_lookup (property);
- if (!node)
- {
- g_warning ("Style property \"%s\" is not registered", property);
- return FALSE;
- }
- if (_gtk_style_property_get_value_type (node) == G_TYPE_NONE)
- {
- g_warning ("Style property \"%s\" is not gettable", property);
- return FALSE;
- }
-
- _gtk_style_property_query (node,
- value,
- style_query_func,
- &query);
-
- return TRUE;
-}
-
-/**
- * gtk_style_properties_get_valist:
- * @props: a #GtkStyleProperties
- * @state: state to retrieve the property values for
- * @args: va_list of property name/return location pairs, followed by %NULL
- *
- * Retrieves several style property values from @props for a given state.
- *
- * Since: 3.0
- *
- * Deprecated: 3.16: #GtkStyleProperties are deprecated.
- **/
-void
-gtk_style_properties_get_valist (GtkStyleProperties *props,
- GtkStateFlags state,
- va_list args)
-{
- const gchar *property_name;
-
- g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
-
- property_name = va_arg (args, const gchar *);
-
- while (property_name)
- {
- gchar *error = NULL;
- GValue value = G_VALUE_INIT;
-
- if (!gtk_style_properties_get_property (props,
- property_name,
- state,
- &value))
- break;
-
- G_VALUE_LCOPY (&value, args, 0, &error);
- g_value_unset (&value);
-
- if (error)
- {
- g_warning ("Could not get style property \"%s\": %s", property_name, error);
- g_free (error);
- break;
- }
-
- property_name = va_arg (args, const gchar *);
- }
-}
-
-/**
- * gtk_style_properties_get:
- * @props: a #GtkStyleProperties
- * @state: state to retrieve the property values for
- * @...: property name /return value pairs, followed by %NULL
- *
- * Retrieves several style property values from @props for a
- * given state.
- *
- * Since: 3.0
- *
- * Deprecated: 3.16: #GtkStyleProperties are deprecated.
- **/
-void
-gtk_style_properties_get (GtkStyleProperties *props,
- GtkStateFlags state,
- ...)
-{
- va_list args;
-
- g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
-
- va_start (args, state);
- gtk_style_properties_get_valist (props, state, args);
- va_end (args);
-}
-
-/**
- * gtk_style_properties_unset_property:
- * @props: a #GtkStyleProperties
- * @property: property to unset
- * @state: state to unset
- *
- * Unsets a style property in @props.
- *
- * Since: 3.0
- *
- * Deprecated: 3.16: #GtkStyleProperties are deprecated.
- **/
-void
-gtk_style_properties_unset_property (GtkStyleProperties *props,
- const gchar *property,
- GtkStateFlags state)
-{
- GtkStylePropertiesPrivate *priv;
- GtkStyleProperty *node;
- PropertyData *prop;
- guint pos;
-
- g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
- g_return_if_fail (property != NULL);
-
- node = _gtk_style_property_lookup (property);
-
- if (!node)
- {
- g_warning ("Style property \"%s\" is not registered", property);
- return;
- }
- if (_gtk_style_property_get_value_type (node) == G_TYPE_NONE)
- {
- g_warning ("Style property \"%s\" is not settable", property);
- return;
- }
-
- if (GTK_IS_CSS_SHORTHAND_PROPERTY (node))
- {
- GtkCssShorthandProperty *shorthand = GTK_CSS_SHORTHAND_PROPERTY (node);
-
- for (pos = 0; pos < _gtk_css_shorthand_property_get_n_subproperties (shorthand); pos++)
- {
- GtkCssStyleProperty *sub = _gtk_css_shorthand_property_get_subproperty (shorthand, pos);
- gtk_style_properties_unset_property (props,
- _gtk_style_property_get_name (GTK_STYLE_PROPERTY (sub)),
- state);
- }
- return;
- }
-
- priv = props->priv;
- prop = g_hash_table_lookup (priv->properties, node);
-
- if (!prop)
- return;
-
- if (property_data_find_position (prop, state, &pos))
- {
- ValueData *data;
-
- data = &g_array_index (prop->values, ValueData, pos);
-
- _gtk_css_value_unref (data->value);
- data->value = NULL;
-
- g_array_remove_index (prop->values, pos);
-
- _gtk_style_provider_private_changed (GTK_STYLE_PROVIDER_PRIVATE (props));
- }
-}
-
-/**
- * gtk_style_properties_clear:
- * @props: a #GtkStyleProperties
- *
- * Clears all style information from @props.
- *
- * Deprecated: 3.16: #GtkStyleProperties are deprecated.
- **/
-void
-gtk_style_properties_clear (GtkStyleProperties *props)
-{
- GtkStylePropertiesPrivate *priv;
-
- g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
-
- priv = props->priv;
- g_hash_table_remove_all (priv->properties);
-
- _gtk_style_provider_private_changed (GTK_STYLE_PROVIDER_PRIVATE (props));
-}
-
-/**
- * gtk_style_properties_merge:
- * @props: a #GtkStyleProperties
- * @props_to_merge: a second #GtkStyleProperties
- * @replace: whether to replace values or not
- *
- * Merges into @props all the style information contained
- * in @props_to_merge. If @replace is %TRUE, the values
- * will be overwritten, if it is %FALSE, the older values
- * will prevail.
- *
- * Since: 3.0
- *
- * Deprecated: 3.16: #GtkStyleProperties are deprecated.
- **/
-void
-gtk_style_properties_merge (GtkStyleProperties *props,
- const GtkStyleProperties *props_to_merge,
- gboolean replace)
-{
- GtkStylePropertiesPrivate *priv, *priv_to_merge;
- GHashTableIter iter;
- gpointer key, val;
-
- g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
- g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props_to_merge));
-
- priv = props->priv;
- priv_to_merge = props_to_merge->priv;
-
- /* Merge symbolic color map */
- if (priv_to_merge->color_map)
- {
- g_hash_table_iter_init (&iter, priv_to_merge->color_map);
-
- while (g_hash_table_iter_next (&iter, &key, &val))
- {
- const gchar *name;
- GtkSymbolicColor *color;
-
- name = key;
- color = val;
-
- if (!replace &&
- g_hash_table_lookup (priv->color_map, name))
- continue;
-
- gtk_style_properties_map_color (props, name, color);
- }
- }
-
- /* Merge symbolic style properties */
- g_hash_table_iter_init (&iter, priv_to_merge->properties);
-
- while (g_hash_table_iter_next (&iter, &key, &val))
- {
- PropertyData *prop_to_merge = val;
- PropertyData *prop;
- guint i, j;
-
- prop = g_hash_table_lookup (priv->properties, key);
-
- if (!prop)
- {
- prop = property_data_new ();
- g_hash_table_insert (priv->properties, key, prop);
- }
-
- for (i = 0; i < prop_to_merge->values->len; i++)
- {
- ValueData *data;
- ValueData *value;
-
- data = &g_array_index (prop_to_merge->values, ValueData, i);
-
- if (replace && data->state == GTK_STATE_FLAG_NORMAL &&
- _gtk_is_css_typed_value_of_type (data->value, PANGO_TYPE_FONT_DESCRIPTION))
- {
- /* Let normal state override all states
- * previously set in the original set
- */
- property_data_remove_values (prop);
- }
-
- value = property_data_get_value (prop, data->state);
-
- if (_gtk_is_css_typed_value_of_type (data->value, PANGO_TYPE_FONT_DESCRIPTION) &&
- value->value != NULL)
- {
- PangoFontDescription *font_desc;
- PangoFontDescription *font_desc_to_merge;
-
- /* Handle merging of font descriptions */
- font_desc = g_value_get_boxed (_gtk_css_typed_value_get (value->value));
- font_desc_to_merge = g_value_get_boxed (_gtk_css_typed_value_get (data->value));
-
- pango_font_description_merge (font_desc, font_desc_to_merge, replace);
- }
- else if (_gtk_is_css_typed_value_of_type (data->value, G_TYPE_PTR_ARRAY) &&
- value->value != NULL)
- {
- GPtrArray *array, *array_to_merge;
-
- /* Append the array, mainly thought
- * for the gtk-key-bindings property
- */
- array = g_value_get_boxed (_gtk_css_typed_value_get (value->value));
- array_to_merge = g_value_get_boxed (_gtk_css_typed_value_get (data->value));
-
- for (j = 0; j < array_to_merge->len; j++)
- g_ptr_array_add (array, g_ptr_array_index (array_to_merge, j));
- }
- else if (replace || value->value == NULL)
- {
- _gtk_css_value_unref (value->value);
- value->value = _gtk_css_value_ref (data->value);
- }
- }
- }
-
- _gtk_style_provider_private_changed (GTK_STYLE_PROVIDER_PRIVATE (props));
-}
-
-G_GNUC_END_IGNORE_DEPRECATIONS;
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