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173 | /* CTK - The GIMP Toolkit
* Copyright (C) 2016 Benjamin Otte <otte@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 "ctkcssnumbervalueprivate.h"
#include "ctkcsscalcvalueprivate.h"
#include "ctkcssdimensionvalueprivate.h"
#include "ctkcsswin32sizevalueprivate.h"
struct _CtkCssValue {
CTK_CSS_VALUE_BASE
};
CtkCssDimension
ctk_css_number_value_get_dimension (const CtkCssValue *value)
{
CtkCssNumberValueClass *number_value_class = (CtkCssNumberValueClass *) value->class;
return number_value_class->get_dimension (value);
}
gboolean
ctk_css_number_value_has_percent (const CtkCssValue *value)
{
CtkCssNumberValueClass *number_value_class = (CtkCssNumberValueClass *) value->class;
return number_value_class->has_percent (value);
}
CtkCssValue *
ctk_css_number_value_multiply (const CtkCssValue *value,
double factor)
{
CtkCssNumberValueClass *number_value_class = (CtkCssNumberValueClass *) value->class;
return number_value_class->multiply (value, factor);
}
CtkCssValue *
ctk_css_number_value_add (CtkCssValue *value1,
CtkCssValue *value2)
{
CtkCssValue *sum;
sum = ctk_css_number_value_try_add (value1, value2);
if (sum == NULL)
sum = ctk_css_calc_value_new_sum (value1, value2);
return sum;
}
CtkCssValue *
ctk_css_number_value_try_add (const CtkCssValue *value1,
const CtkCssValue *value2)
{
CtkCssNumberValueClass *number_value_class;
if (value1->class != value2->class)
return NULL;
number_value_class = (CtkCssNumberValueClass *) value1->class;
return number_value_class->try_add (value1, value2);
}
/*
* ctk_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
ctk_css_number_value_get_calc_term_order (const CtkCssValue *value)
{
CtkCssNumberValueClass *number_value_class = (CtkCssNumberValueClass *) value->class;
return number_value_class->get_calc_term_order (value);
}
CtkCssValue *
_ctk_css_number_value_new (double value,
CtkCssUnit unit)
{
return ctk_css_dimension_value_new (value, unit);
}
CtkCssValue *
ctk_css_number_value_transition (CtkCssValue *start,<--- Parameter 'start' can be declared as pointer to const
CtkCssValue *end,<--- Parameter 'end' can be declared as pointer to const
guint property_id G_GNUC_UNUSED,
double progress)
{
CtkCssValue *result, *mul_start, *mul_end;
mul_start = ctk_css_number_value_multiply (start, 1 - progress);
mul_end = ctk_css_number_value_multiply (end, progress);
result = ctk_css_number_value_add (mul_start, mul_end);
_ctk_css_value_unref (mul_start);
_ctk_css_value_unref (mul_end);
return result;
}
gboolean
ctk_css_number_value_can_parse (CtkCssParser *parser)
{
return _ctk_css_parser_has_number (parser)
|| _ctk_css_parser_has_prefix (parser, "calc")
|| _ctk_css_parser_has_prefix (parser, "-ctk-win32-size")
|| _ctk_css_parser_has_prefix (parser, "-ctk-win32-part-width")
|| _ctk_css_parser_has_prefix (parser, "-ctk-win32-part-height")
|| _ctk_css_parser_has_prefix (parser, "-ctk-win32-part-border-top")
|| _ctk_css_parser_has_prefix (parser, "-ctk-win32-part-border-left")
|| _ctk_css_parser_has_prefix (parser, "-ctk-win32-part-border-bottom")
|| _ctk_css_parser_has_prefix (parser, "-ctk-win32-part-border-right");
}
CtkCssValue *
_ctk_css_number_value_parse (CtkCssParser *parser,
CtkCssNumberParseFlags flags)
{
if (_ctk_css_parser_has_prefix (parser, "calc"))
return ctk_css_calc_value_parse (parser, flags);
if (_ctk_css_parser_has_prefix (parser, "-ctk-win32-size") ||
_ctk_css_parser_has_prefix (parser, "-ctk-win32-part-width") ||
_ctk_css_parser_has_prefix (parser, "-ctk-win32-part-height") ||
_ctk_css_parser_has_prefix (parser, "-ctk-win32-part-border-top") ||
_ctk_css_parser_has_prefix (parser, "-ctk-win32-part-border-left") ||
_ctk_css_parser_has_prefix (parser, "-ctk-win32-part-border-bottom") ||
_ctk_css_parser_has_prefix (parser, "-ctk-win32-part-border-right"))
return ctk_css_win32_size_value_parse (parser, flags);
return ctk_css_dimension_value_parse (parser, flags);
}
double
_ctk_css_number_value_get (const CtkCssValue *number,
double one_hundred_percent)
{
CtkCssNumberValueClass *number_value_class;
g_return_val_if_fail (number != NULL, 0.0);
number_value_class = (CtkCssNumberValueClass *) number->class;
return number_value_class->get (number, one_hundred_percent);
}
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