gtk2/gtk/gtkcssstylepropertyimpl.c
2012-04-17 08:59:14 +02:00

1746 lines
66 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 2010 Carlos Garnacho <carlosg@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 "gtkstylepropertyprivate.h"
#include <gobject/gvaluecollector.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <cairo-gobject.h>
#include <math.h>
#include "gtkcssparserprivate.h"
#include "gtkcssstylefuncsprivate.h"
#include "gtkcssstylepropertyprivate.h"
#include "gtkcsstypesprivate.h"
#include "gtkintl.h"
#include "gtkprivatetypebuiltins.h"
#include "gtkstylepropertiesprivate.h"
/* this is in case round() is not provided by the compiler,
* such as in the case of C89 compilers, like MSVC
*/
#include "fallback-c89.c"
/* the actual parsers we have */
#include "gtkanimationdescription.h"
#include "gtkbindings.h"
#include "gtkcssimagegradientprivate.h"
#include "gtkcssimageprivate.h"
#include "gtkcssimagevalueprivate.h"
#include "gtkcssenumvalueprivate.h"
#include "gtkcssnumbervalueprivate.h"
#include "gtkcssrgbavalueprivate.h"
#include "gtkcssshadowvalueprivate.h"
#include "gtksymboliccolorprivate.h"
#include "gtkthemingengine.h"
#include "gtktypebuiltins.h"
#include "gtkwin32themeprivate.h"
/*** REGISTRATION ***/
static void
gtk_css_style_property_register (const char * name,
GType value_type,
GtkStylePropertyFlags flags,
GtkCssStylePropertyParseFunc parse_value,
GtkCssStylePropertyPrintFunc print_value,
GtkCssStylePropertyComputeFunc compute_value,
GtkCssStylePropertyQueryFunc query_value,
GtkCssStylePropertyAssignFunc assign_value,
GtkCssStylePropertyEqualFunc equal_func,
GtkCssValue * initial_value)
{
GtkCssStyleProperty *node;
g_assert (initial_value != NULL);
g_assert (parse_value != NULL);
g_assert (value_type == G_TYPE_NONE || query_value != NULL);
g_assert (value_type == G_TYPE_NONE || assign_value != NULL);
node = g_object_new (GTK_TYPE_CSS_STYLE_PROPERTY,
"value-type", value_type,
"inherit", (flags & GTK_STYLE_PROPERTY_INHERIT) ? TRUE : FALSE,
"initial-value", initial_value,
"name", name,
NULL);
node->parse_value = parse_value;
if (print_value)
node->print_value = print_value;
if (compute_value)
node->compute_value = compute_value;
node->query_value = query_value;
node->assign_value = assign_value;
if (equal_func)
node->equal_func = equal_func;
_gtk_css_value_unref (initial_value);
}
/*** HELPERS ***/
static void
string_append_string (GString *str,
const char *string)
{
gsize len;
g_string_append_c (str, '"');
do {
len = strcspn (string, "\"\n\r\f");
g_string_append (str, string);
string += len;
switch (*string)
{
case '\0':
break;
case '\n':
g_string_append (str, "\\A ");
break;
case '\r':
g_string_append (str, "\\D ");
break;
case '\f':
g_string_append (str, "\\C ");
break;
case '\"':
g_string_append (str, "\\\"");
break;
default:
g_assert_not_reached ();
break;
}
} while (*string);
g_string_append_c (str, '"');
}
/*** IMPLEMENTATIONS ***/
static void
query_simple (GtkCssStyleProperty *property,
const GtkCssValue *css_value,
GValue *value)
{
_gtk_css_value_init_gvalue (css_value, value);
}
static GtkCssValue *
assign_simple (GtkCssStyleProperty *property,
const GValue *value)
{
return _gtk_css_value_new_from_gvalue (value);
}
static void
query_length_as_int (GtkCssStyleProperty *property,
const GtkCssValue *css_value,
GValue *value)
{
g_value_init (value, G_TYPE_INT);
g_value_set_int (value, round (_gtk_css_number_value_get (css_value, 100)));
}
static GtkCssValue *
assign_length_from_int (GtkCssStyleProperty *property,
const GValue *value)
{
return _gtk_css_number_value_new (g_value_get_int (value), GTK_CSS_PX);
}
static GtkCssValue *
color_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GtkSymbolicColor *symbolic;
if (_gtk_css_parser_try (parser, "currentcolor", TRUE))
{
symbolic = gtk_symbolic_color_ref (_gtk_symbolic_color_get_current_color ());
}
else
{
symbolic = _gtk_css_parser_read_symbolic_color (parser);
if (symbolic == NULL)
return NULL;
}
return _gtk_css_value_new_take_symbolic_color (symbolic);
}
static GtkCssValue *
color_compute (GtkCssStyleProperty *property,
GtkStyleContext *context,
GtkCssValue *specified)
{
return _gtk_css_rgba_value_compute_from_symbolic (specified,
_gtk_css_style_property_get_initial_value (property),
context,
FALSE);
}
static GtkCssValue *
color_property_compute (GtkCssStyleProperty *property,
GtkStyleContext *context,
GtkCssValue *specified)
{
GtkCssValue *value;
value = _gtk_css_rgba_value_compute_from_symbolic (specified,
_gtk_css_style_property_get_initial_value (property),
context,
TRUE);
_gtk_css_rgba_value_get_rgba (value);
return value;
}
static void
color_query (GtkCssStyleProperty *property,
const GtkCssValue *css_value,
GValue *value)
{
g_value_init (value, GDK_TYPE_RGBA);
g_value_set_boxed (value, _gtk_css_rgba_value_get_rgba (css_value));
}
static GtkCssValue *
color_assign (GtkCssStyleProperty *property,
const GValue *value)
{
return _gtk_css_rgba_value_new_from_rgba (g_value_get_boxed (value));
}
static GtkCssValue *
font_family_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GPtrArray *names;
char *name;
/* We don't special case generic families. Pango should do
* that for us */
names = g_ptr_array_new ();
do {
name = _gtk_css_parser_try_ident (parser, TRUE);
if (name)
{
GString *string = g_string_new (name);
g_free (name);
while ((name = _gtk_css_parser_try_ident (parser, TRUE)))
{
g_string_append_c (string, ' ');
g_string_append (string, name);
g_free (name);
}
name = g_string_free (string, FALSE);
}
else
{
name = _gtk_css_parser_read_string (parser);
if (name == NULL)
{
g_ptr_array_free (names, TRUE);
return FALSE;
}
}
g_ptr_array_add (names, name);
} while (_gtk_css_parser_try (parser, ",", TRUE));
/* NULL-terminate array */
g_ptr_array_add (names, NULL);
return _gtk_css_value_new_take_strv ((char **) g_ptr_array_free (names, FALSE));
}
static void
font_family_value_print (GtkCssStyleProperty *property,
const GtkCssValue *value,
GString *string)
{
const char **names = _gtk_css_value_get_strv (value);
if (names == NULL || *names == NULL)
{
g_string_append (string, "none");
return;
}
string_append_string (string, *names);
names++;
while (*names)
{
g_string_append (string, ", ");
string_append_string (string, *names);
names++;
}
}
static GtkCssValue *
parse_pango_style (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GtkCssValue *value = _gtk_css_font_style_value_try_parse (parser);
if (value == NULL)
_gtk_css_parser_error (parser, "unknown value for property");
return value;
}
static void
query_pango_style (GtkCssStyleProperty *property,
const GtkCssValue *css_value,
GValue *value)
{
g_value_init (value, PANGO_TYPE_STYLE);
g_value_set_enum (value, _gtk_css_font_style_value_get (css_value));
}
static GtkCssValue *
assign_pango_style (GtkCssStyleProperty *property,
const GValue *value)
{
return _gtk_css_font_style_value_new (g_value_get_enum (value));
}
static GtkCssValue *
parse_pango_weight (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GtkCssValue *value = _gtk_css_font_weight_value_try_parse (parser);
if (value == NULL)
_gtk_css_parser_error (parser, "unknown value for property");
return value;
}
static void
query_pango_weight (GtkCssStyleProperty *property,
const GtkCssValue *css_value,
GValue *value)
{
g_value_init (value, PANGO_TYPE_WEIGHT);
g_value_set_enum (value, _gtk_css_font_weight_value_get (css_value));
}
static GtkCssValue *
assign_pango_weight (GtkCssStyleProperty *property,
const GValue *value)
{
return _gtk_css_font_weight_value_new (g_value_get_enum (value));
}
static GtkCssValue *
parse_pango_variant (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GtkCssValue *value = _gtk_css_font_variant_value_try_parse (parser);
if (value == NULL)
_gtk_css_parser_error (parser, "unknown value for property");
return value;
}
static void
query_pango_variant (GtkCssStyleProperty *property,
const GtkCssValue *css_value,
GValue *value)
{
g_value_init (value, PANGO_TYPE_VARIANT);
g_value_set_enum (value, _gtk_css_font_variant_value_get (css_value));
}
static GtkCssValue *
assign_pango_variant (GtkCssStyleProperty *property,
const GValue *value)
{
return _gtk_css_font_variant_value_new (g_value_get_enum (value));
}
static GtkCssValue *
parse_border_style (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GtkCssValue *value = _gtk_css_border_style_value_try_parse (parser);
if (value == NULL)
_gtk_css_parser_error (parser, "unknown value for property");
return value;
}
static void
query_border_style (GtkCssStyleProperty *property,
const GtkCssValue *css_value,
GValue *value)
{
g_value_init (value, GTK_TYPE_BORDER_STYLE);
g_value_set_enum (value, _gtk_css_border_style_value_get (css_value));
}
static GtkCssValue *
assign_border_style (GtkCssStyleProperty *property,
const GValue *value)
{
return _gtk_css_border_style_value_new (g_value_get_enum (value));
}
static GtkCssValue *
parse_css_area (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
int value;
if (!_gtk_css_parser_try_enum (parser, GTK_TYPE_CSS_AREA, &value))
{
_gtk_css_parser_error (parser, "unknown value for property");
return NULL;
}
return _gtk_css_value_new_from_enum (GTK_TYPE_CSS_AREA, value);
}
static GtkCssValue *
bindings_value_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GPtrArray *array;
GtkBindingSet *binding_set;
char *name;
array = g_ptr_array_new ();
do {
name = _gtk_css_parser_try_ident (parser, TRUE);
if (name == NULL)
{
_gtk_css_parser_error (parser, "Not a valid binding name");
g_ptr_array_free (array, TRUE);
return FALSE;
}
binding_set = gtk_binding_set_find (name);
if (!binding_set)
{
_gtk_css_parser_error (parser, "No binding set named '%s'", name);
g_free (name);
continue;
}
g_ptr_array_add (array, binding_set);
g_free (name);
}
while (_gtk_css_parser_try (parser, ",", TRUE));
return _gtk_css_value_new_take_binding_sets (array);
}
static void
bindings_value_print (GtkCssStyleProperty *property,
const GtkCssValue *value,
GString *string)
{
GPtrArray *array;
guint i;
array = _gtk_css_value_get_boxed (value);
for (i = 0; i < array->len; i++)
{
GtkBindingSet *binding_set = g_ptr_array_index (array, i);
if (i > 0)
g_string_append (string, ", ");
g_string_append (string, binding_set->set_name);
}
}
static GtkCssValue *
shadow_value_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
return _gtk_css_shadow_value_parse (parser);
}
static GtkCssValue *
shadow_value_compute (GtkCssStyleProperty *property,
GtkStyleContext *context,
GtkCssValue *specified)
{
return _gtk_css_shadow_value_compute (specified, context);
}
static GtkCssValue *
border_corner_radius_value_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GtkCssBorderCornerRadius corner;
if (!_gtk_css_parser_read_number (parser,
&corner.horizontal,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_PARSE_PERCENT
| GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH))
return FALSE;
if (!_gtk_css_parser_has_number (parser))
corner.vertical = corner.horizontal;
else if (!_gtk_css_parser_read_number (parser,
&corner.vertical,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_PARSE_PERCENT
| GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH))
return FALSE;
return _gtk_css_value_new_from_border_corner_radius (&corner);
}
static void
border_corner_radius_value_print (GtkCssStyleProperty *property,
const GtkCssValue *value,
GString *string)
{
const GtkCssBorderCornerRadius *corner;
corner = _gtk_css_value_get_border_corner_radius (value);
_gtk_css_number_print (&corner->horizontal, string);
if (!_gtk_css_number_equal (&corner->horizontal, &corner->vertical))
{
g_string_append_c (string, ' ');
_gtk_css_number_print (&corner->vertical, string);
}
}
static GtkCssValue *
css_image_value_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GtkCssImage *image;
if (_gtk_css_parser_try (parser, "none", TRUE))
image = NULL;
else
{
image = _gtk_css_image_new_parse (parser, base);
if (image == NULL)
return FALSE;
}
return _gtk_css_image_value_new (image);
}
static GtkCssValue *
css_image_value_compute (GtkCssStyleProperty *property,
GtkStyleContext *context,
GtkCssValue *specified)
{
GtkCssImage *image, *computed;
image = _gtk_css_image_value_get_image (specified);
if (image == NULL)
return _gtk_css_value_ref (specified);
computed = _gtk_css_image_compute (image, context);
if (computed == image)
{
g_object_unref (computed);
return _gtk_css_value_ref (specified);
}
return _gtk_css_image_value_new (computed);
}
static void
css_image_value_query (GtkCssStyleProperty *property,
const GtkCssValue *css_value,
GValue *value)
{
GtkCssImage *image = _gtk_css_image_value_get_image (css_value);
cairo_pattern_t *pattern;
cairo_surface_t *surface;
cairo_matrix_t matrix;
g_value_init (value, CAIRO_GOBJECT_TYPE_PATTERN);
if (GTK_IS_CSS_IMAGE_GRADIENT (image))
g_value_set_boxed (value, GTK_CSS_IMAGE_GRADIENT (image)->pattern);
else if (image != NULL)
{
double width, height;
/* the 100, 100 is rather random */
_gtk_css_image_get_concrete_size (image, 0, 0, 100, 100, &width, &height);
surface = _gtk_css_image_get_surface (image, NULL, width, height);
pattern = cairo_pattern_create_for_surface (surface);
cairo_matrix_init_scale (&matrix, width, height);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_surface_destroy (surface);
g_value_take_boxed (value, pattern);
}
}
static GtkCssValue *
css_image_value_assign (GtkCssStyleProperty *property,
const GValue *value)
{
g_warning ("FIXME: assigning images is not implemented");
return _gtk_css_image_value_new (NULL);
}
static GtkCssValue *
font_size_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
gdouble d;
if (!_gtk_css_parser_try_double (parser, &d))
{
_gtk_css_parser_error (parser, "Expected a number");
return NULL;
}
return _gtk_css_value_new_from_double (d);
}
static GtkCssValue *
outline_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
int i;
if (!_gtk_css_parser_try_int (parser, &i))
{
_gtk_css_parser_error (parser, "Expected an integer");
return NULL;
}
return _gtk_css_value_new_from_int (i);
}
static GtkCssValue *
border_image_repeat_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GValue value = G_VALUE_INIT;
GtkCssValue *result;
g_value_init (&value, GTK_TYPE_CSS_BORDER_IMAGE_REPEAT);
if (!_gtk_css_style_parse_value (&value, parser, base))
{
g_value_unset (&value);
return NULL;
}
result = _gtk_css_value_new_from_gvalue (&value);
g_value_unset (&value);
return result;
}
static GtkCssValue *
border_image_slice_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GValue value = G_VALUE_INIT;
GtkCssValue *result;
g_value_init (&value, GTK_TYPE_BORDER);
if (!_gtk_css_style_parse_value (&value, parser, base))
{
g_value_unset (&value);
return NULL;
}
result = _gtk_css_value_new_from_gvalue (&value);
g_value_unset (&value);
return result;
}
static GtkCssValue *
border_image_width_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GValue value = G_VALUE_INIT;
GtkCssValue *result;
g_value_init (&value, GTK_TYPE_BORDER);
if (!_gtk_css_style_parse_value (&value, parser, base))
{
g_value_unset (&value);
return NULL;
}
result = _gtk_css_value_new_from_gvalue (&value);
g_value_unset (&value);
return result;
}
static GtkCssValue *
engine_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GtkThemingEngine *engine;
char *str;
if (_gtk_css_parser_try (parser, "none", TRUE))
return _gtk_css_value_new_from_theming_engine (gtk_theming_engine_load (NULL));
str = _gtk_css_parser_try_ident (parser, TRUE);
if (str == NULL)
{
_gtk_css_parser_error (parser, "Expected a valid theme name");
return NULL;
}
engine = gtk_theming_engine_load (str);
if (engine == NULL)
{
_gtk_css_parser_error (parser, "Theming engine '%s' not found", str);
g_free (str);
return NULL;
}
g_free (str);
return _gtk_css_value_new_from_theming_engine (engine);
}
static GtkCssValue *
transition_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GValue value = G_VALUE_INIT;
GtkCssValue *result;
g_value_init (&value, GTK_TYPE_ANIMATION_DESCRIPTION);
if (!_gtk_css_style_parse_value (&value, parser, base))
{
g_value_unset (&value);
return NULL;
}
result = _gtk_css_value_new_from_gvalue (&value);
g_value_unset (&value);
return result;
}
static GtkCssValue *
parse_margin (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
return _gtk_css_number_value_parse (parser,
GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH);
}
static GtkCssValue *
compute_margin (GtkCssStyleProperty *property,
GtkStyleContext *context,
GtkCssValue *specified)
{
return _gtk_css_number_value_compute (specified, context);
}
static GtkCssValue *
parse_padding (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
return _gtk_css_number_value_parse (parser,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH);
}
static GtkCssValue *
compute_padding (GtkCssStyleProperty *property,
GtkStyleContext *context,
GtkCssValue *specified)
{
return _gtk_css_number_value_compute (specified, context);
}
static GtkCssValue *
parse_border_width (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
return _gtk_css_number_value_parse (parser,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH);
}
static GtkCssValue *
compute_border_width (GtkCssStyleProperty *property,
GtkStyleContext *context,
GtkCssValue *specified)
{
GtkCssStyleProperty *style;
GtkBorderStyle border_style;
/* The -1 is magic that is only true because we register the style
* properties directly after the width properties.
*/
style = _gtk_css_style_property_lookup_by_id (_gtk_css_style_property_get_id (property) - 1);
border_style = _gtk_css_border_style_value_get (_gtk_style_context_peek_property (context, _gtk_style_property_get_name (GTK_STYLE_PROPERTY (style))));
if (border_style == GTK_BORDER_STYLE_NONE ||
border_style == GTK_BORDER_STYLE_HIDDEN)
return _gtk_css_number_value_new (0, GTK_CSS_PX);
else
return _gtk_css_number_value_compute (specified, context);
}
static GtkCssValue *
background_repeat_value_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
int repeat, vertical;
if (!_gtk_css_parser_try_enum (parser, GTK_TYPE_CSS_BACKGROUND_REPEAT, &repeat))
{
_gtk_css_parser_error (parser, "Not a valid value");
return FALSE;
}
if (repeat <= GTK_CSS_BACKGROUND_REPEAT_MASK)
{
if (_gtk_css_parser_try_enum (parser, GTK_TYPE_CSS_BACKGROUND_REPEAT, &vertical))
{
if (vertical >= GTK_CSS_BACKGROUND_REPEAT_MASK)
{
_gtk_css_parser_error (parser, "Not a valid 2nd value");
return FALSE;
}
else
repeat |= vertical << GTK_CSS_BACKGROUND_REPEAT_SHIFT;
}
else
repeat |= repeat << GTK_CSS_BACKGROUND_REPEAT_SHIFT;
}
return _gtk_css_value_new_from_enum (GTK_TYPE_CSS_BACKGROUND_REPEAT, repeat);
}
static void
background_repeat_value_print (GtkCssStyleProperty *property,
const GtkCssValue *value,
GString *string)
{
GEnumClass *enum_class;
GEnumValue *enum_value;
GtkCssBackgroundRepeat repeat;
repeat = _gtk_css_value_get_enum (value);
enum_class = g_type_class_ref (GTK_TYPE_CSS_BACKGROUND_REPEAT);
enum_value = g_enum_get_value (enum_class, repeat);
/* only triggers for 'repeat-x' and 'repeat-y' */
if (enum_value)
g_string_append (string, enum_value->value_nick);
else
{
enum_value = g_enum_get_value (enum_class, GTK_CSS_BACKGROUND_HORIZONTAL (repeat));
g_string_append (string, enum_value->value_nick);
if (GTK_CSS_BACKGROUND_HORIZONTAL (repeat) != GTK_CSS_BACKGROUND_VERTICAL (repeat))
{
enum_value = g_enum_get_value (enum_class, GTK_CSS_BACKGROUND_VERTICAL (repeat));
g_string_append (string, " ");
g_string_append (string, enum_value->value_nick);
}
}
g_type_class_unref (enum_class);
}
static GtkCssValue *
background_size_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
GtkCssBackgroundSize size = { GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), FALSE, FALSE};
if (_gtk_css_parser_try (parser, "cover", TRUE))
size.cover = TRUE;
else if (_gtk_css_parser_try (parser, "contain", TRUE))
size.contain = TRUE;
else
{
if (_gtk_css_parser_try (parser, "auto", TRUE))
_gtk_css_number_init (&size.width, 0, GTK_CSS_PX);
else if (!_gtk_css_parser_read_number (parser,
&size.width,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_PARSE_PERCENT
| GTK_CSS_PARSE_LENGTH))
return NULL;
if (_gtk_css_parser_try (parser, "auto", TRUE))
_gtk_css_number_init (&size.height, 0, GTK_CSS_PX);
else if (_gtk_css_parser_has_number (parser))
{
if (!_gtk_css_parser_read_number (parser,
&size.height,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_PARSE_PERCENT
| GTK_CSS_PARSE_LENGTH))
return NULL;
}
else
_gtk_css_number_init (&size.height, 0, GTK_CSS_PX);
}
return _gtk_css_value_new_from_background_size (&size);
}
static void
background_size_print (GtkCssStyleProperty *property,
const GtkCssValue *value,
GString *string)
{
const GtkCssBackgroundSize *size = _gtk_css_value_get_background_size (value);
if (size->cover)
g_string_append (string, "cover");
else if (size->contain)
g_string_append (string, "contain");
else
{
if (size->width.value == 0)
g_string_append (string, "auto");
else
_gtk_css_number_print (&size->width, string);
if (size->height.value != 0)
{
g_string_append (string, " ");
_gtk_css_number_print (&size->height, string);
}
}
}
static GtkCssValue *
background_size_compute (GtkCssStyleProperty *property,
GtkStyleContext *context,
GtkCssValue *specified)
{
const GtkCssBackgroundSize *ssize = _gtk_css_value_get_background_size (specified);
GtkCssBackgroundSize csize;
gboolean changed;
csize.cover = ssize->cover;
csize.contain = ssize->contain;
changed = _gtk_css_number_compute (&csize.width,
&ssize->width,
context);
changed |= _gtk_css_number_compute (&csize.height,
&ssize->height,
context);
if (changed)
return _gtk_css_value_new_from_background_size (&csize);
return _gtk_css_value_ref (specified);
}
static GtkCssValue *
background_position_parse (GtkCssStyleProperty *property,
GtkCssParser *parser,
GFile *base)
{
static const struct {
const char *name;
guint percentage;
gboolean horizontal;
gboolean vertical;
} names[] = {
{ "left", 0, TRUE, FALSE },
{ "right", 100, TRUE, FALSE },
{ "center", 50, TRUE, TRUE },
{ "top", 0, FALSE, TRUE },
{ "bottom", 100, FALSE, TRUE },
{ NULL , 0, TRUE, FALSE }, /* used for numbers */
{ NULL , 50, TRUE, TRUE } /* used for no value */
};
GtkCssBackgroundPosition pos;
GtkCssNumber *missing;
guint first, second;
for (first = 0; names[first].name != NULL; first++)
{
if (_gtk_css_parser_try (parser, names[first].name, TRUE))
{
if (names[first].horizontal)
{
_gtk_css_number_init (&pos.x, names[first].percentage, GTK_CSS_PERCENT);
missing = &pos.y;
}
else
{
_gtk_css_number_init (&pos.y, names[first].percentage, GTK_CSS_PERCENT);
missing = &pos.x;
}
break;
}
}
if (names[first].name == NULL)
{
missing = &pos.y;
if (!_gtk_css_parser_read_number (parser,
&pos.x,
GTK_CSS_PARSE_PERCENT
| GTK_CSS_PARSE_LENGTH))
return NULL;
}
for (second = 0; names[second].name != NULL; second++)
{
if (_gtk_css_parser_try (parser, names[second].name, TRUE))
{
_gtk_css_number_init (missing, names[second].percentage, GTK_CSS_PERCENT);
break;
}
}
if (names[second].name == NULL)
{
if (_gtk_css_parser_has_number (parser))
{
if (missing != &pos.y)
{
_gtk_css_parser_error (parser, "Invalid combination of values");
return NULL;
}
if (!_gtk_css_parser_read_number (parser,
missing,
GTK_CSS_PARSE_PERCENT
| GTK_CSS_PARSE_LENGTH))
return NULL;
}
else
{
second++;
_gtk_css_number_init (missing, 50, GTK_CSS_PERCENT);
}
}
else
{
if ((names[first].horizontal && !names[second].vertical) ||
(!names[first].horizontal && !names[second].horizontal))
{
_gtk_css_parser_error (parser, "Invalid combination of values");
return NULL;
}
}
return _gtk_css_value_new_from_background_position (&pos);
}
static void
background_position_print (GtkCssStyleProperty *property,
const GtkCssValue *value,
GString *string)
{
const GtkCssBackgroundPosition *pos = _gtk_css_value_get_background_position (value);
static const GtkCssNumber center = GTK_CSS_NUMBER_INIT (50, GTK_CSS_PERCENT);
static const struct {
const char *x_name;
const char *y_name;
GtkCssNumber number;
} values[] = {
{ "left", "top", GTK_CSS_NUMBER_INIT (0, GTK_CSS_PERCENT) },
{ "right", "bottom", GTK_CSS_NUMBER_INIT (100, GTK_CSS_PERCENT) }
};
guint i;
if (_gtk_css_number_equal (&pos->x, &center))
{
if (_gtk_css_number_equal (&pos->y, &center))
{
g_string_append (string, "center");
return;
}
}
else
{
for (i = 0; i < G_N_ELEMENTS (values); i++)
{
if (_gtk_css_number_equal (&pos->x, &values[i].number))
{
g_string_append (string, values[i].x_name);
break;
}
}
if (i == G_N_ELEMENTS (values))
_gtk_css_number_print (&pos->x, string);
if (_gtk_css_number_equal (&pos->y, &center))
return;
g_string_append_c (string, ' ');
}
for (i = 0; i < G_N_ELEMENTS (values); i++)
{
if (_gtk_css_number_equal (&pos->y, &values[i].number))
{
g_string_append (string, values[i].y_name);
break;
}
}
if (i == G_N_ELEMENTS (values))
{
if (_gtk_css_number_equal (&pos->x, &center))
g_string_append (string, "center ");
_gtk_css_number_print (&pos->y, string);
}
}
static GtkCssValue *
background_position_compute (GtkCssStyleProperty *property,
GtkStyleContext *context,
GtkCssValue *specified)
{
const GtkCssBackgroundPosition *spos = _gtk_css_value_get_background_position (specified);
GtkCssBackgroundPosition cpos;
gboolean changed;
changed = _gtk_css_number_compute (&cpos.x,
&spos->x,
context);
changed |= _gtk_css_number_compute (&cpos.y,
&spos->y,
context);
if (changed)
return _gtk_css_value_new_from_background_position (&cpos);
return _gtk_css_value_ref (specified);
}
/*** REGISTRATION ***/
static GtkSymbolicColor *
gtk_symbolic_color_new_rgba (double red,
double green,
double blue,
double alpha)
{
GdkRGBA rgba = { red, green, blue, alpha };
return gtk_symbolic_color_new_literal (&rgba);
}
void
_gtk_css_style_property_init_properties (void)
{
char *default_font_family[] = { "Sans", NULL };
GtkCssBackgroundSize default_background_size = { GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), FALSE, FALSE };
GtkCssBackgroundPosition default_background_position = { GTK_CSS_NUMBER_INIT (0, GTK_CSS_PERCENT), GTK_CSS_NUMBER_INIT (0, GTK_CSS_PERCENT)};
GtkCssBorderCornerRadius no_corner_radius = { GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX), GTK_CSS_NUMBER_INIT (0, GTK_CSS_PX) };
GtkBorder border_of_ones = { 1, 1, 1, 1 };
GtkCssBorderImageRepeat border_image_repeat = { GTK_CSS_REPEAT_STYLE_STRETCH, GTK_CSS_REPEAT_STYLE_STRETCH };
/* Initialize "color" and "font-size" first,
* so that when computing values later they are
* done first. That way, 'currentColor' and font
* sizes in em can be looked up properly */
gtk_css_style_property_register ("color",
GDK_TYPE_RGBA,
GTK_STYLE_PROPERTY_INHERIT,
color_parse,
NULL,
color_property_compute,
color_query,
color_assign,
NULL,
_gtk_css_value_new_take_symbolic_color (
gtk_symbolic_color_new_rgba (1, 1, 1, 1)));
gtk_css_style_property_register ("font-size",
G_TYPE_DOUBLE,
GTK_STYLE_PROPERTY_INHERIT,
font_size_parse,
NULL,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_double (10.0));
/* properties that aren't referenced when computing values
* start here */
gtk_css_style_property_register ("background-color",
GDK_TYPE_RGBA,
0,
color_parse,
NULL,
color_compute,
color_query,
color_assign,
NULL,
_gtk_css_value_new_take_symbolic_color (
gtk_symbolic_color_new_rgba (0, 0, 0, 0)));
gtk_css_style_property_register ("font-family",
G_TYPE_STRV,
GTK_STYLE_PROPERTY_INHERIT,
font_family_parse,
font_family_value_print,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_take_strv (g_strdupv (default_font_family)));
gtk_css_style_property_register ("font-style",
PANGO_TYPE_STYLE,
GTK_STYLE_PROPERTY_INHERIT,
parse_pango_style,
NULL,
NULL,
query_pango_style,
assign_pango_style,
NULL,
_gtk_css_font_style_value_new (PANGO_STYLE_NORMAL));
gtk_css_style_property_register ("font-variant",
PANGO_TYPE_VARIANT,
GTK_STYLE_PROPERTY_INHERIT,
parse_pango_variant,
NULL,
NULL,
query_pango_variant,
assign_pango_variant,
NULL,
_gtk_css_font_variant_value_new (PANGO_VARIANT_NORMAL));
gtk_css_style_property_register ("font-weight",
PANGO_TYPE_WEIGHT,
GTK_STYLE_PROPERTY_INHERIT,
parse_pango_weight,
NULL,
NULL,
query_pango_weight,
assign_pango_weight,
NULL,
_gtk_css_font_weight_value_new (PANGO_WEIGHT_NORMAL));
gtk_css_style_property_register ("text-shadow",
G_TYPE_NONE,
GTK_STYLE_PROPERTY_INHERIT,
shadow_value_parse,
NULL,
shadow_value_compute,
NULL,
NULL,
NULL,
_gtk_css_shadow_value_new_none ());
gtk_css_style_property_register ("icon-shadow",
G_TYPE_NONE,
GTK_STYLE_PROPERTY_INHERIT,
shadow_value_parse,
NULL,
shadow_value_compute,
NULL,
NULL,
NULL,
_gtk_css_shadow_value_new_none ());
gtk_css_style_property_register ("box-shadow",
G_TYPE_NONE,
0,
shadow_value_parse,
NULL,
shadow_value_compute,
NULL,
NULL,
NULL,
_gtk_css_shadow_value_new_none ());
gtk_css_style_property_register ("margin-top",
G_TYPE_INT,
0,
parse_margin,
NULL,
compute_margin,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("margin-left",
G_TYPE_INT,
0,
parse_margin,
NULL,
compute_margin,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("margin-bottom",
G_TYPE_INT,
0,
parse_margin,
NULL,
compute_margin,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("margin-right",
G_TYPE_INT,
0,
parse_margin,
NULL,
compute_margin,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("padding-top",
G_TYPE_INT,
0,
parse_padding,
NULL,
compute_padding,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("padding-left",
G_TYPE_INT,
0,
parse_padding,
NULL,
compute_padding,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("padding-bottom",
G_TYPE_INT,
0,
parse_padding,
NULL,
compute_padding,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("padding-right",
G_TYPE_INT,
0,
parse_padding,
NULL,
compute_padding,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
/* IMPORTANT: compute_border_width() requires that the border-width
* properties be immeditaly followed by the border-style properties
*/
gtk_css_style_property_register ("border-top-style",
GTK_TYPE_BORDER_STYLE,
0,
parse_border_style,
NULL,
NULL,
query_border_style,
assign_border_style,
NULL,
_gtk_css_border_style_value_new (GTK_BORDER_STYLE_NONE));
gtk_css_style_property_register ("border-top-width",
G_TYPE_INT,
0,
parse_border_width,
NULL,
compute_border_width,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("border-left-style",
GTK_TYPE_BORDER_STYLE,
0,
parse_border_style,
NULL,
NULL,
query_border_style,
assign_border_style,
NULL,
_gtk_css_border_style_value_new (GTK_BORDER_STYLE_NONE));
gtk_css_style_property_register ("border-left-width",
G_TYPE_INT,
0,
parse_border_width,
NULL,
compute_border_width,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("border-bottom-style",
GTK_TYPE_BORDER_STYLE,
0,
parse_border_style,
NULL,
NULL,
query_border_style,
assign_border_style,
NULL,
_gtk_css_border_style_value_new (GTK_BORDER_STYLE_NONE));
gtk_css_style_property_register ("border-bottom-width",
G_TYPE_INT,
0,
parse_border_width,
NULL,
compute_border_width,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("border-right-style",
GTK_TYPE_BORDER_STYLE,
0,
parse_border_style,
NULL,
NULL,
query_border_style,
assign_border_style,
NULL,
_gtk_css_border_style_value_new (GTK_BORDER_STYLE_NONE));
gtk_css_style_property_register ("border-right-width",
G_TYPE_INT,
0,
parse_border_width,
NULL,
compute_border_width,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("border-top-left-radius",
GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
0,
border_corner_radius_value_parse,
border_corner_radius_value_print,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_border_corner_radius (&no_corner_radius));
gtk_css_style_property_register ("border-top-right-radius",
GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
0,
border_corner_radius_value_parse,
border_corner_radius_value_print,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_border_corner_radius (&no_corner_radius));
gtk_css_style_property_register ("border-bottom-right-radius",
GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
0,
border_corner_radius_value_parse,
border_corner_radius_value_print,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_border_corner_radius (&no_corner_radius));
gtk_css_style_property_register ("border-bottom-left-radius",
GTK_TYPE_CSS_BORDER_CORNER_RADIUS,
0,
border_corner_radius_value_parse,
border_corner_radius_value_print,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_border_corner_radius (&no_corner_radius));
gtk_css_style_property_register ("outline-style",
GTK_TYPE_BORDER_STYLE,
0,
parse_border_style,
NULL,
NULL,
query_border_style,
assign_border_style,
NULL,
_gtk_css_border_style_value_new (GTK_BORDER_STYLE_NONE));
gtk_css_style_property_register ("outline-width",
G_TYPE_INT,
0,
parse_border_width,
NULL,
compute_border_width,
query_length_as_int,
assign_length_from_int,
NULL,
_gtk_css_number_value_new (0.0, GTK_CSS_PX));
gtk_css_style_property_register ("outline-offset",
G_TYPE_INT,
0,
outline_parse,
NULL,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_int (0));
gtk_css_style_property_register ("background-clip",
GTK_TYPE_CSS_AREA,
0,
parse_css_area,
NULL,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_enum (GTK_TYPE_CSS_AREA, GTK_CSS_AREA_BORDER_BOX));
gtk_css_style_property_register ("background-origin",
GTK_TYPE_CSS_AREA,
0,
parse_css_area,
NULL,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_enum (GTK_TYPE_CSS_AREA, GTK_CSS_AREA_PADDING_BOX));
gtk_css_style_property_register ("background-size",
G_TYPE_NONE,
0,
background_size_parse,
background_size_print,
background_size_compute,
NULL,
NULL,
NULL,
_gtk_css_value_new_from_background_size (&default_background_size));
gtk_css_style_property_register ("background-position",
G_TYPE_NONE,
0,
background_position_parse,
background_position_print,
background_position_compute,
NULL,
NULL,
NULL,
_gtk_css_value_new_from_background_position (&default_background_position));
gtk_css_style_property_register ("border-top-color",
GDK_TYPE_RGBA,
0,
color_parse,
NULL,
color_compute,
color_query,
color_assign,
NULL,
_gtk_css_value_new_take_symbolic_color (
gtk_symbolic_color_ref (
_gtk_symbolic_color_get_current_color ())));
gtk_css_style_property_register ("border-right-color",
GDK_TYPE_RGBA,
0,
color_parse,
NULL,
color_compute,
color_query,
color_assign,
NULL,
_gtk_css_value_new_take_symbolic_color (
gtk_symbolic_color_ref (
_gtk_symbolic_color_get_current_color ())));
gtk_css_style_property_register ("border-bottom-color",
GDK_TYPE_RGBA,
0,
color_parse,
NULL,
color_compute,
color_query,
color_assign,
NULL,
_gtk_css_value_new_take_symbolic_color (
gtk_symbolic_color_ref (
_gtk_symbolic_color_get_current_color ())));
gtk_css_style_property_register ("border-left-color",
GDK_TYPE_RGBA,
0,
color_parse,
NULL,
color_compute,
color_query,
color_assign,
NULL,
_gtk_css_value_new_take_symbolic_color (
gtk_symbolic_color_ref (
_gtk_symbolic_color_get_current_color ())));
gtk_css_style_property_register ("outline-color",
GDK_TYPE_RGBA,
0,
color_parse,
NULL,
color_compute,
color_query,
color_assign,
NULL,
_gtk_css_value_new_take_symbolic_color (
gtk_symbolic_color_ref (
_gtk_symbolic_color_get_current_color ())));
gtk_css_style_property_register ("background-repeat",
GTK_TYPE_CSS_BACKGROUND_REPEAT,
0,
background_repeat_value_parse,
background_repeat_value_print,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_enum (GTK_TYPE_CSS_BACKGROUND_REPEAT,
GTK_CSS_BACKGROUND_REPEAT |
(GTK_CSS_BACKGROUND_REPEAT << GTK_CSS_BACKGROUND_REPEAT_SHIFT)));
gtk_css_style_property_register ("background-image",
CAIRO_GOBJECT_TYPE_PATTERN,
0,
css_image_value_parse,
NULL,
css_image_value_compute,
css_image_value_query,
css_image_value_assign,
NULL,
_gtk_css_image_value_new (NULL));
gtk_css_style_property_register ("border-image-source",
CAIRO_GOBJECT_TYPE_PATTERN,
0,
css_image_value_parse,
NULL,
css_image_value_compute,
css_image_value_query,
css_image_value_assign,
NULL,
_gtk_css_image_value_new (NULL));
gtk_css_style_property_register ("border-image-repeat",
GTK_TYPE_CSS_BORDER_IMAGE_REPEAT,
0,
border_image_repeat_parse,
NULL,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_border_image_repeat (&border_image_repeat));
/* XXX: The initial value is wrong, it should be 100% */
gtk_css_style_property_register ("border-image-slice",
GTK_TYPE_BORDER,
0,
border_image_slice_parse,
NULL,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_boxed (GTK_TYPE_BORDER, &border_of_ones));
gtk_css_style_property_register ("border-image-width",
GTK_TYPE_BORDER,
0,
border_image_width_parse,
NULL,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_boxed (GTK_TYPE_BORDER, NULL));
gtk_css_style_property_register ("engine",
GTK_TYPE_THEMING_ENGINE,
0,
engine_parse,
NULL,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_theming_engine (gtk_theming_engine_load (NULL)));
gtk_css_style_property_register ("transition",
GTK_TYPE_ANIMATION_DESCRIPTION,
0,
transition_parse,
NULL,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_from_boxed (GTK_TYPE_ANIMATION_DESCRIPTION, NULL));
/* Private property holding the binding sets */
gtk_css_style_property_register ("gtk-key-bindings",
G_TYPE_PTR_ARRAY,
0,
bindings_value_parse,
bindings_value_print,
NULL,
query_simple,
assign_simple,
NULL,
_gtk_css_value_new_take_binding_sets (NULL));
}