forked from AuroraMiddleware/gtk
153 lines
4.0 KiB
C
153 lines
4.0 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright © 2016 Benjamin Otte <otte@gnome.org>
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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 "gtkcsscalcvalueprivate.h"
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#include "gtkcssenumvalueprivate.h"
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#include "gtkcssinitialvalueprivate.h"
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#include "gtkstylepropertyprivate.h"
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#include "fallback-c89.c"
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struct _GtkCssValue {
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GTK_CSS_VALUE_BASE
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GtkCssValue *term;
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};
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static void
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gtk_css_value_calc_free (GtkCssValue *value)
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{
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_gtk_css_value_unref (value->term);
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g_slice_free (GtkCssValue, value);
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}
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static GtkCssValue *gtk_css_calc_value_new (GtkCssValue *term);
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static GtkCssValue *
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gtk_css_value_calc_compute (GtkCssValue *calc,
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guint property_id,
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GtkStyleProviderPrivate *provider,
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GtkCssStyle *style,
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GtkCssStyle *parent_style)
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{
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GtkCssValue *computed_term;
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computed_term = _gtk_css_value_compute (calc->term, property_id, provider, style, parent_style);
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if (computed_term == calc->term)
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return _gtk_css_value_ref (calc);
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return gtk_css_calc_value_new (computed_term);
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}
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static gboolean
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gtk_css_value_calc_equal (const GtkCssValue *calc1,
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const GtkCssValue *calc2)
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{
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return _gtk_css_value_equal (calc1->term, calc2->term);
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}
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static GtkCssValue *
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gtk_css_value_calc_transition (GtkCssValue *start,
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GtkCssValue *end,
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guint property_id,
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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_calc_print (const GtkCssValue *calc,
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GString *string)
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{
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g_string_append (string, "calc(");
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_gtk_css_value_print (calc->term, string);
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g_string_append (string, ")");
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}
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double
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gtk_css_value_calc_get (const GtkCssValue *value,
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double one_hundred_percent)
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{
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return _gtk_css_number_value_get (value->term, one_hundred_percent);
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}
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GtkCssDimension
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gtk_css_value_calc_get_dimension (const GtkCssValue *value)
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{
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return gtk_css_number_value_get_dimension (value->term);
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}
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gboolean
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gtk_css_value_calc_has_percent (const GtkCssValue *value)
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{
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return gtk_css_number_value_has_percent (value->term);
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}
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static const GtkCssNumberValueClass GTK_CSS_VALUE_CALC = {
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{
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gtk_css_value_calc_free,
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gtk_css_value_calc_compute,
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gtk_css_value_calc_equal,
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gtk_css_value_calc_transition,
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gtk_css_value_calc_print
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},
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gtk_css_value_calc_get,
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gtk_css_value_calc_get_dimension,
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gtk_css_value_calc_has_percent,
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};
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static GtkCssValue *
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gtk_css_calc_value_new (GtkCssValue *term)
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{
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GtkCssValue *result;
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result = _gtk_css_value_new (GtkCssValue, >K_CSS_VALUE_CALC.value_class);
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result->term = term;
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return result;
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}
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GtkCssValue *
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gtk_css_calc_value_parse (GtkCssParser *parser,
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GtkCssNumberParseFlags flags)
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{
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GtkCssValue *term;
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if (!_gtk_css_parser_try (parser, "calc(", TRUE))
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{
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_gtk_css_parser_error (parser, "Expected 'calc('");
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return NULL;
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}
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term = _gtk_css_number_value_parse (parser, flags);
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if (term == NULL)
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return NULL;
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if (!_gtk_css_parser_try (parser, ")", TRUE))
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{
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_gtk_css_value_unref (term);
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_gtk_css_parser_error (parser, "Expected ')' for calc() statement");
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return NULL;
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}
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return gtk_css_calc_value_new (term);
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}
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