forked from AuroraMiddleware/gtk
1a9dfab825
Returns a value that transitions between start and end or %NULL if the values cannot be transitioned. So far, all implementations but numbers and rgba return NULL.
132 lines
3.3 KiB
C
132 lines
3.3 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2011 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtkcssarrayvalueprivate.h"
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#include <string.h>
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struct _GtkCssValue {
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GTK_CSS_VALUE_BASE
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guint n_values;
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GtkCssValue *values[1];
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};
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static void
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gtk_css_value_array_free (GtkCssValue *value)
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{
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guint i;
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for (i = 0; i < value->n_values; i++)
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{
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_gtk_css_value_unref (value->values[i]);
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}
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g_slice_free1 (sizeof (GtkCssValue) + sizeof (GtkCssValue *) * (value->n_values - 1), value);
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}
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static gboolean
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gtk_css_value_array_equal (const GtkCssValue *value1,
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const GtkCssValue *value2)
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{
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guint i;
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if (value1->n_values != value2->n_values)
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return FALSE;
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for (i = 0; i < value1->n_values; i++)
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{
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if (!_gtk_css_value_equal (value1->values[i],
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value2->values[i]))
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return FALSE;
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}
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return TRUE;
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}
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static GtkCssValue *
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gtk_css_value_array_transition (GtkCssValue *start,
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GtkCssValue *end,
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double progress)
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{
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return NULL;
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}
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static void
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gtk_css_value_array_print (const GtkCssValue *value,
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GString *string)
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{
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guint i;
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if (value->n_values == 0)
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{
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g_string_append (string, "none");
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return;
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}
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for (i = 0; i < value->n_values; i++)
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{
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if (i > 0)
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g_string_append (string, ", ");
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_gtk_css_value_print (value->values[i], string);
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}
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}
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static const GtkCssValueClass GTK_CSS_VALUE_ARRAY = {
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gtk_css_value_array_free,
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gtk_css_value_array_equal,
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gtk_css_value_array_transition,
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gtk_css_value_array_print
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};
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GtkCssValue *
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_gtk_css_array_value_new (GtkCssValue **values,
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guint n_values)
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{
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GtkCssValue *result;
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g_return_val_if_fail (values != NULL || n_values == 0, NULL);
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result = _gtk_css_value_alloc (>K_CSS_VALUE_ARRAY, sizeof (GtkCssValue) + sizeof (GtkCssValue *) * (MAX (1, n_values) - 1));
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result->n_values = n_values;
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memcpy (&result->values[0], values, sizeof (GtkCssValue *) * n_values);
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return result;
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}
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GtkCssValue *
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_gtk_css_array_value_get_nth (const GtkCssValue *value,
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guint i)
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{
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g_return_val_if_fail (value != NULL, NULL);
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g_return_val_if_fail (value->class == >K_CSS_VALUE_ARRAY, NULL);
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g_return_val_if_fail (value->n_values > 0, NULL);
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return value->values[i % value->n_values];
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}
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guint
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_gtk_css_array_value_get_n_values (const GtkCssValue *value)
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{
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g_return_val_if_fail (value != NULL, 0);
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g_return_val_if_fail (value->class == >K_CSS_VALUE_ARRAY, 0);
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return value->n_values;
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}
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