/* GTK - The GIMP Toolkit * Copyright (C) 2016 Benjamin Otte * * 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 "gtkcssnumbervalueprivate.h" #include "gtkcsscalcvalueprivate.h" #include "gtkcssdimensionvalueprivate.h" #include "gtkprivate.h" struct _GtkCssValue { GTK_CSS_VALUE_BASE }; GtkCssDimension gtk_css_number_value_get_dimension (const GtkCssValue *value) { GtkCssNumberValueClass *number_value_class = (GtkCssNumberValueClass *) value->class; return number_value_class->get_dimension (value); } gboolean gtk_css_number_value_has_percent (const GtkCssValue *value) { GtkCssNumberValueClass *number_value_class = (GtkCssNumberValueClass *) value->class; return number_value_class->has_percent (value); } GtkCssValue * gtk_css_number_value_multiply (const GtkCssValue *value, double factor) { GtkCssNumberValueClass *number_value_class = (GtkCssNumberValueClass *) value->class; return number_value_class->multiply (value, factor); } GtkCssValue * gtk_css_number_value_add (GtkCssValue *value1, GtkCssValue *value2) { GtkCssValue *sum; sum = gtk_css_number_value_try_add (value1, value2); if (sum == NULL) sum = gtk_css_calc_value_new_sum (value1, value2); return sum; } GtkCssValue * gtk_css_number_value_try_add (GtkCssValue *value1, GtkCssValue *value2) { GtkCssNumberValueClass *number_value_class; if (value1->class != value2->class) return NULL; number_value_class = (GtkCssNumberValueClass *) value1->class; return number_value_class->try_add (value1, value2); } /* * gtk_css_number_value_get_calc_term_order: * @value: Value to compute order for * * Determines the position of @value when printed as part of a calc() * expression. Values with lower numbers are printed first. Note that * these numbers are arbitrary, so when adding new types of values to * print, feel free to change them in implementations so that they * match. * * Returns: Magic value determining placement when printing calc() * expression. */ gint gtk_css_number_value_get_calc_term_order (const GtkCssValue *value) { GtkCssNumberValueClass *number_value_class = (GtkCssNumberValueClass *) value->class; return number_value_class->get_calc_term_order (value); } GtkCssValue * _gtk_css_number_value_new (double value, GtkCssUnit unit) { return gtk_css_dimension_value_new (value, unit); } GtkCssValue * gtk_css_number_value_transition (GtkCssValue *start, GtkCssValue *end, guint property_id, double progress) { GtkCssValue *result, *mul_start, *mul_end; mul_start = gtk_css_number_value_multiply (start, 1 - progress); mul_end = gtk_css_number_value_multiply (end, progress); result = gtk_css_number_value_add (mul_start, mul_end); _gtk_css_value_unref (mul_start); _gtk_css_value_unref (mul_end); return result; } gboolean gtk_css_number_value_can_parse (GtkCssParser *parser) { return gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_SIGNED_NUMBER) || gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_SIGNLESS_NUMBER) || gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_SIGNED_INTEGER) || gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_SIGNLESS_INTEGER) || gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_PERCENTAGE) || gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_SIGNED_INTEGER_DIMENSION) || gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_SIGNLESS_INTEGER_DIMENSION) || gtk_css_parser_has_token (parser, GTK_CSS_TOKEN_DIMENSION) || gtk_css_parser_has_function (parser, "calc"); } GtkCssValue * _gtk_css_number_value_parse (GtkCssParser *parser, GtkCssNumberParseFlags flags) { if (gtk_css_parser_has_function (parser, "calc")) return gtk_css_calc_value_parse (parser, flags); return gtk_css_dimension_value_parse (parser, flags); } double _gtk_css_number_value_get (const GtkCssValue *number, double one_hundred_percent) { GtkCssNumberValueClass *number_value_class; gtk_internal_return_val_if_fail (number != NULL, 0.0); number_value_class = (GtkCssNumberValueClass *) number->class; return number_value_class->get (number, one_hundred_percent); }