forked from AuroraMiddleware/gtk
686 lines
22 KiB
C
686 lines
22 KiB
C
/*
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* Copyright © 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 2.1 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, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include "config.h"
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#include "gtkcssshorthandpropertyprivate.h"
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#include <cairo-gobject.h>
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#include <math.h>
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#include "gtkborderimageprivate.h"
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#include "gtkcssstylefuncsprivate.h"
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#include "gtkcsstypesprivate.h"
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/* this is in case round() is not provided by the compiler,
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* such as in the case of C89 compilers, like MSVC
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*/
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#include "fallback-c89.c"
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/*** PARSING ***/
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static gboolean
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value_is_done_parsing (GtkCssParser *parser)
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{
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return _gtk_css_parser_is_eof (parser) ||
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_gtk_css_parser_begins_with (parser, ';') ||
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_gtk_css_parser_begins_with (parser, '}');
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}
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static gboolean
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parse_border (GtkCssShorthandProperty *shorthand,
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GValue *values,
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GtkCssParser *parser,
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GFile *base)
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{
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GValue temp = G_VALUE_INIT;
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GtkBorder *border;
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g_value_init (&temp, GTK_TYPE_BORDER);
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if (!_gtk_css_style_parse_value (&temp, parser, base))
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{
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g_value_unset (&temp);
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return FALSE;
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}
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border = g_value_get_boxed (&temp);
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g_value_init (&values[0], G_TYPE_INT);
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g_value_init (&values[1], G_TYPE_INT);
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g_value_init (&values[2], G_TYPE_INT);
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g_value_init (&values[3], G_TYPE_INT);
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g_value_set_int (&values[0], border->top);
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g_value_set_int (&values[1], border->right);
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g_value_set_int (&values[2], border->bottom);
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g_value_set_int (&values[3], border->left);
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g_value_unset (&temp);
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return TRUE;
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}
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static gboolean
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parse_border_radius (GtkCssShorthandProperty *shorthand,
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GValue *values,
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GtkCssParser *parser,
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GFile *base)
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{
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GtkCssBorderCornerRadius borders[4];
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guint i;
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for (i = 0; i < G_N_ELEMENTS (borders); i++)
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{
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if (!_gtk_css_parser_try_double (parser, &borders[i].horizontal))
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break;
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if (borders[i].horizontal < 0)
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{
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_gtk_css_parser_error (parser, "Border radius values cannot be negative");
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return FALSE;
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}
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}
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if (i == 0)
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{
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_gtk_css_parser_error (parser, "Expected a number");
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return FALSE;
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}
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/* The magic (i - 1) >> 1 below makes it take the correct value
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* according to spec. Feel free to check the 4 cases */
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for (; i < G_N_ELEMENTS (borders); i++)
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borders[i].horizontal = borders[(i - 1) >> 1].horizontal;
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if (_gtk_css_parser_try (parser, "/", TRUE))
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{
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for (i = 0; i < G_N_ELEMENTS (borders); i++)
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{
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if (!_gtk_css_parser_try_double (parser, &borders[i].vertical))
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break;
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if (borders[i].vertical < 0)
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{
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_gtk_css_parser_error (parser, "Border radius values cannot be negative");
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return FALSE;
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}
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}
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if (i == 0)
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{
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_gtk_css_parser_error (parser, "Expected a number");
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return FALSE;
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}
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for (; i < G_N_ELEMENTS (borders); i++)
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borders[i].vertical = borders[(i - 1) >> 1].vertical;
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}
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else
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{
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for (i = 0; i < G_N_ELEMENTS (borders); i++)
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borders[i].vertical = borders[i].horizontal;
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}
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for (i = 0; i < G_N_ELEMENTS (borders); i++)
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{
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g_value_init (&values[i], GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
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g_value_set_boxed (&values[i], &borders[i]);
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}
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return TRUE;
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}
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static gboolean
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parse_border_color (GtkCssShorthandProperty *shorthand,
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GValue *values,
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GtkCssParser *parser,
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GFile *base)
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{
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GtkSymbolicColor *symbolic;
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guint i;
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for (i = 0; i < 4; i++)
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{
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symbolic = _gtk_css_parser_read_symbolic_color (parser);
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if (symbolic == NULL)
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return FALSE;
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g_value_init (&values[i], GTK_TYPE_SYMBOLIC_COLOR);
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g_value_set_boxed (&values[i], symbolic);
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if (value_is_done_parsing (parser))
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break;
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}
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for (i++; i < 4; i++)
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{
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g_value_init (&values[i], GTK_TYPE_SYMBOLIC_COLOR);
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g_value_copy (&values[(i - 1) >> 1], &values[i]);
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}
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return TRUE;
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}
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static gboolean
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parse_border_image (GtkCssShorthandProperty *shorthand,
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GValue *values,
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GtkCssParser *parser,
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GFile *base)
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{
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g_value_init (&values[0], CAIRO_GOBJECT_TYPE_PATTERN);
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if (!_gtk_css_style_parse_value (&values[0], parser, base))
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return FALSE;
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if (value_is_done_parsing (parser))
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return TRUE;
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g_value_init (&values[1], GTK_TYPE_BORDER);
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if (!_gtk_css_style_parse_value (&values[1], parser, base))
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return FALSE;
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if (_gtk_css_parser_try (parser, "/", TRUE))
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{
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g_value_init (&values[2], GTK_TYPE_BORDER);
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if (!_gtk_css_style_parse_value (&values[2], parser, base))
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return FALSE;
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}
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if (value_is_done_parsing (parser))
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return TRUE;
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g_value_init (&values[3], GTK_TYPE_CSS_BORDER_IMAGE_REPEAT);
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if (!_gtk_css_style_parse_value (&values[3], parser, base))
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return FALSE;
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return TRUE;
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}
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static gboolean
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parse_font (GtkCssShorthandProperty *shorthand,
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GValue *values,
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GtkCssParser *parser,
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GFile *base)
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{
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PangoFontDescription *desc;
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guint mask;
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char *str;
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str = _gtk_css_parser_read_value (parser);
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if (str == NULL)
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return FALSE;
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desc = pango_font_description_from_string (str);
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g_free (str);
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mask = pango_font_description_get_set_fields (desc);
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if (mask & PANGO_FONT_MASK_FAMILY)
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{
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GPtrArray *strv = g_ptr_array_new ();
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g_ptr_array_add (strv, g_strdup (pango_font_description_get_family (desc)));
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g_ptr_array_add (strv, NULL);
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g_value_init (&values[0], G_TYPE_STRV);
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g_value_take_boxed (&values[0], g_ptr_array_free (strv, FALSE));
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}
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if (mask & PANGO_FONT_MASK_STYLE)
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{
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g_value_init (&values[1], PANGO_TYPE_STYLE);
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g_value_set_enum (&values[1], pango_font_description_get_style (desc));
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}
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if (mask & PANGO_FONT_MASK_VARIANT)
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{
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g_value_init (&values[2], PANGO_TYPE_VARIANT);
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g_value_set_enum (&values[2], pango_font_description_get_variant (desc));
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}
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if (mask & PANGO_FONT_MASK_WEIGHT)
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{
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g_value_init (&values[3], PANGO_TYPE_WEIGHT);
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g_value_set_enum (&values[3], pango_font_description_get_weight (desc));
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}
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if (mask & PANGO_FONT_MASK_SIZE)
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{
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g_value_init (&values[4], G_TYPE_DOUBLE);
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g_value_set_double (&values[4],
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(double) pango_font_description_get_size (desc) / PANGO_SCALE);
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}
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pango_font_description_free (desc);
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return TRUE;
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}
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/*** PACKING ***/
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static GParameter *
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unpack_border (const GValue *value,
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guint *n_params,
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const char *top,
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const char *left,
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const char *bottom,
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const char *right)
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{
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GParameter *parameter = g_new0 (GParameter, 4);
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GtkBorder *border = g_value_get_boxed (value);
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parameter[0].name = top;
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g_value_init (¶meter[0].value, G_TYPE_INT);
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g_value_set_int (¶meter[0].value, border->top);
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parameter[1].name = left;
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g_value_init (¶meter[1].value, G_TYPE_INT);
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g_value_set_int (¶meter[1].value, border->left);
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parameter[2].name = bottom;
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g_value_init (¶meter[2].value, G_TYPE_INT);
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g_value_set_int (¶meter[2].value, border->bottom);
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parameter[3].name = right;
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g_value_init (¶meter[3].value, G_TYPE_INT);
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g_value_set_int (¶meter[3].value, border->right);
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*n_params = 4;
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return parameter;
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}
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static void
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pack_border (GValue *value,
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GtkStyleProperties *props,
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GtkStateFlags state,
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const char *top,
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const char *left,
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const char *bottom,
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const char *right)
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{
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GtkBorder border;
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int t, l, b, r;
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gtk_style_properties_get (props,
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state,
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top, &t,
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left, &l,
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bottom, &b,
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right, &r,
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NULL);
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border.top = t;
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border.left = l;
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border.bottom = b;
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border.right = r;
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g_value_set_boxed (value, &border);
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}
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static GParameter *
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unpack_border_width (const GValue *value,
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guint *n_params)
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{
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return unpack_border (value, n_params,
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"border-top-width", "border-left-width",
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"border-bottom-width", "border-right-width");
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}
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static void
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pack_border_width (GValue *value,
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GtkStyleProperties *props,
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GtkStateFlags state,
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GtkStylePropertyContext *context)
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{
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pack_border (value, props, state,
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"border-top-width", "border-left-width",
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"border-bottom-width", "border-right-width");
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}
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static GParameter *
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unpack_padding (const GValue *value,
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guint *n_params)
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{
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return unpack_border (value, n_params,
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"padding-top", "padding-left",
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"padding-bottom", "padding-right");
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}
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static void
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pack_padding (GValue *value,
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GtkStyleProperties *props,
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GtkStateFlags state,
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GtkStylePropertyContext *context)
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{
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pack_border (value, props, state,
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"padding-top", "padding-left",
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"padding-bottom", "padding-right");
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}
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static GParameter *
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unpack_margin (const GValue *value,
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guint *n_params)
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{
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return unpack_border (value, n_params,
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"margin-top", "margin-left",
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"margin-bottom", "margin-right");
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}
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static void
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pack_margin (GValue *value,
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GtkStyleProperties *props,
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GtkStateFlags state,
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GtkStylePropertyContext *context)
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{
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pack_border (value, props, state,
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"margin-top", "margin-left",
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"margin-bottom", "margin-right");
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}
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static GParameter *
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unpack_border_radius (const GValue *value,
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guint *n_params)
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{
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GParameter *parameter = g_new0 (GParameter, 4);
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GtkCssBorderCornerRadius border;
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border.horizontal = border.vertical = g_value_get_int (value);
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parameter[0].name = "border-top-left-radius";
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g_value_init (¶meter[0].value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
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g_value_set_boxed (¶meter[0].value, &border);
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parameter[1].name = "border-top-right-radius";
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g_value_init (¶meter[1].value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
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g_value_set_boxed (¶meter[1].value, &border);
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parameter[2].name = "border-bottom-right-radius";
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g_value_init (¶meter[2].value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
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g_value_set_boxed (¶meter[2].value, &border);
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parameter[3].name = "border-bottom-left-radius";
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g_value_init (¶meter[3].value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
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g_value_set_boxed (¶meter[3].value, &border);
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*n_params = 4;
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return parameter;
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}
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static void
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pack_border_radius (GValue *value,
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GtkStyleProperties *props,
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GtkStateFlags state,
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GtkStylePropertyContext *context)
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{
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GtkCssBorderCornerRadius *top_left;
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/* NB: We are an int property, so we have to resolve to an int here.
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* So we just resolve to an int. We pick one and stick to it.
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* Lesson learned: Don't query border-radius shorthand, query the
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* real properties instead. */
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gtk_style_properties_get (props,
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state,
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"border-top-left-radius", &top_left,
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NULL);
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if (top_left)
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g_value_set_int (value, top_left->horizontal);
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g_free (top_left);
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}
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static GParameter *
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unpack_font_description (const GValue *value,
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guint *n_params)
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{
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GParameter *parameter = g_new0 (GParameter, 5);
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PangoFontDescription *description;
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PangoFontMask mask;
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guint n;
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/* For backwards compat, we only unpack values that are indeed set.
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* For strict CSS conformance we need to unpack all of them.
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* Note that we do set all of them in the parse function, so it
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* will not have effects when parsing CSS files. It will though
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* for custom style providers.
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*/
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description = g_value_get_boxed (value);
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n = 0;
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if (description)
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mask = pango_font_description_get_set_fields (description);
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else
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mask = 0;
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if (mask & PANGO_FONT_MASK_FAMILY)
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{
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GPtrArray *strv = g_ptr_array_new ();
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g_ptr_array_add (strv, g_strdup (pango_font_description_get_family (description)));
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g_ptr_array_add (strv, NULL);
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parameter[n].name = "font-family";
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g_value_init (¶meter[n].value, G_TYPE_STRV);
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g_value_take_boxed (¶meter[n].value,
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g_ptr_array_free (strv, FALSE));
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n++;
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}
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if (mask & PANGO_FONT_MASK_STYLE)
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{
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parameter[n].name = "font-style";
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g_value_init (¶meter[n].value, PANGO_TYPE_STYLE);
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g_value_set_enum (¶meter[n].value,
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pango_font_description_get_style (description));
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n++;
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}
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if (mask & PANGO_FONT_MASK_VARIANT)
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{
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parameter[n].name = "font-variant";
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g_value_init (¶meter[n].value, PANGO_TYPE_VARIANT);
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g_value_set_enum (¶meter[n].value,
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pango_font_description_get_variant (description));
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n++;
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}
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if (mask & PANGO_FONT_MASK_WEIGHT)
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{
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parameter[n].name = "font-weight";
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g_value_init (¶meter[n].value, PANGO_TYPE_WEIGHT);
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g_value_set_enum (¶meter[n].value,
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pango_font_description_get_weight (description));
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n++;
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}
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if (mask & PANGO_FONT_MASK_SIZE)
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{
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parameter[n].name = "font-size";
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g_value_init (¶meter[n].value, G_TYPE_DOUBLE);
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g_value_set_double (¶meter[n].value,
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(double) pango_font_description_get_size (description) / PANGO_SCALE);
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n++;
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}
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*n_params = n;
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return parameter;
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}
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static void
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pack_font_description (GValue *value,
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GtkStyleProperties *props,
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GtkStateFlags state,
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GtkStylePropertyContext *context)
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{
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PangoFontDescription *description;
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char **families;
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PangoStyle style;
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PangoVariant variant;
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PangoWeight weight;
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double size;
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gtk_style_properties_get (props,
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state,
|
|
"font-family", &families,
|
|
"font-style", &style,
|
|
"font-variant", &variant,
|
|
"font-weight", &weight,
|
|
"font-size", &size,
|
|
NULL);
|
|
|
|
description = pango_font_description_new ();
|
|
/* xxx: Can we set all the families here somehow? */
|
|
if (families)
|
|
pango_font_description_set_family (description, families[0]);
|
|
pango_font_description_set_size (description, round (size * PANGO_SCALE));
|
|
pango_font_description_set_style (description, style);
|
|
pango_font_description_set_variant (description, variant);
|
|
pango_font_description_set_weight (description, weight);
|
|
|
|
g_strfreev (families);
|
|
|
|
g_value_take_boxed (value, description);
|
|
}
|
|
|
|
static GParameter *
|
|
unpack_border_color (const GValue *value,
|
|
guint *n_params)
|
|
{
|
|
GParameter *parameter = g_new0 (GParameter, 4);
|
|
GType type;
|
|
|
|
type = G_VALUE_TYPE (value);
|
|
if (type == G_TYPE_PTR_ARRAY)
|
|
type = GTK_TYPE_SYMBOLIC_COLOR;
|
|
|
|
parameter[0].name = "border-top-color";
|
|
g_value_init (¶meter[0].value, type);
|
|
parameter[1].name = "border-right-color";
|
|
g_value_init (¶meter[1].value, type);
|
|
parameter[2].name = "border-bottom-color";
|
|
g_value_init (¶meter[2].value, type);
|
|
parameter[3].name = "border-left-color";
|
|
g_value_init (¶meter[3].value, type);
|
|
|
|
if (G_VALUE_TYPE (value) == G_TYPE_PTR_ARRAY)
|
|
{
|
|
GPtrArray *array = g_value_get_boxed (value);
|
|
guint i;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
g_value_set_boxed (¶meter[i].value, g_ptr_array_index (array, i));
|
|
}
|
|
else
|
|
{
|
|
/* can be RGBA or symbolic color */
|
|
gpointer p = g_value_get_boxed (value);
|
|
|
|
g_value_set_boxed (¶meter[0].value, p);
|
|
g_value_set_boxed (¶meter[1].value, p);
|
|
g_value_set_boxed (¶meter[2].value, p);
|
|
g_value_set_boxed (¶meter[3].value, p);
|
|
}
|
|
|
|
*n_params = 4;
|
|
return parameter;
|
|
}
|
|
|
|
static void
|
|
pack_border_color (GValue *value,
|
|
GtkStyleProperties *props,
|
|
GtkStateFlags state,
|
|
GtkStylePropertyContext *context)
|
|
{
|
|
/* NB: We are a color property, so we have to resolve to a color here.
|
|
* So we just resolve to a color. We pick one and stick to it.
|
|
* Lesson learned: Don't query border-color shorthand, query the
|
|
* real properties instead. */
|
|
g_value_unset (value);
|
|
gtk_style_properties_get_property (props, "border-top-color", state, value);
|
|
}
|
|
|
|
static void
|
|
_gtk_css_shorthand_property_register (const char *name,
|
|
GType value_type,
|
|
const char **subproperties,
|
|
GtkCssShorthandPropertyParseFunc parse_func,
|
|
GtkStyleUnpackFunc unpack_func,
|
|
GtkStylePackFunc pack_func)
|
|
{
|
|
GtkStyleProperty *node;
|
|
|
|
g_return_if_fail (pack_func != NULL);
|
|
g_return_if_fail (unpack_func != NULL);
|
|
|
|
node = g_object_new (GTK_TYPE_CSS_SHORTHAND_PROPERTY,
|
|
"name", name,
|
|
"value-type", value_type,
|
|
"subproperties", subproperties,
|
|
NULL);
|
|
|
|
GTK_CSS_SHORTHAND_PROPERTY (node)->parse = parse_func;
|
|
node->pack_func = pack_func;
|
|
node->unpack_func = unpack_func;
|
|
}
|
|
|
|
void
|
|
_gtk_css_shorthand_property_init_properties (void)
|
|
{
|
|
/* The order is important here, be careful when changing it */
|
|
const char *font_subproperties[] = { "font-family", "font-style", "font-variant", "font-weight", "font-size", NULL };
|
|
const char *margin_subproperties[] = { "margin-top", "margin-right", "margin-bottom", "margin-left", NULL };
|
|
const char *padding_subproperties[] = { "padding-top", "padding-right", "padding-bottom", "padding-left", NULL };
|
|
const char *border_width_subproperties[] = { "border-top-width", "border-right-width", "border-bottom-width", "border-left-width", NULL };
|
|
const char *border_radius_subproperties[] = { "border-top-left-radius", "border-top-right-radius",
|
|
"border-bottom-right-radius", "border-bottom-left-radius", NULL };
|
|
const char *border_color_subproperties[] = { "border-top-color", "border-right-color", "border-bottom-color", "border-left-color", NULL };
|
|
const char *border_image_subproperties[] = { "border-image-source", "border-image-slice", "border-image-width", "border-image-repeat", NULL };
|
|
|
|
_gtk_css_shorthand_property_register ("font",
|
|
PANGO_TYPE_FONT_DESCRIPTION,
|
|
font_subproperties,
|
|
parse_font,
|
|
unpack_font_description,
|
|
pack_font_description);
|
|
_gtk_css_shorthand_property_register ("margin",
|
|
GTK_TYPE_BORDER,
|
|
margin_subproperties,
|
|
parse_border,
|
|
unpack_margin,
|
|
pack_margin);
|
|
_gtk_css_shorthand_property_register ("padding",
|
|
GTK_TYPE_BORDER,
|
|
padding_subproperties,
|
|
parse_border,
|
|
unpack_padding,
|
|
pack_padding);
|
|
_gtk_css_shorthand_property_register ("border-width",
|
|
GTK_TYPE_BORDER,
|
|
border_width_subproperties,
|
|
parse_border,
|
|
unpack_border_width,
|
|
pack_border_width);
|
|
_gtk_css_shorthand_property_register ("border-radius",
|
|
G_TYPE_INT,
|
|
border_radius_subproperties,
|
|
parse_border_radius,
|
|
unpack_border_radius,
|
|
pack_border_radius);
|
|
_gtk_css_shorthand_property_register ("border-color",
|
|
GDK_TYPE_RGBA,
|
|
border_color_subproperties,
|
|
parse_border_color,
|
|
unpack_border_color,
|
|
pack_border_color);
|
|
_gtk_css_shorthand_property_register ("border-image",
|
|
GTK_TYPE_BORDER_IMAGE,
|
|
border_image_subproperties,
|
|
parse_border_image,
|
|
_gtk_border_image_unpack,
|
|
_gtk_border_image_pack);
|
|
}
|