AuroraMiddleware/gtk
1
0
Fork 1
mirror of https://gitlab.gnome.org/GNOME/gtk.git synced 2024-11-06 08:40:08 +00:00
Code Issues Projects Releases Wiki Activity
e5eb59a2f8
gtk/gtk/gtkcssshorthandpropertyimpl.c
Emmanuele Bassi 5ad60caa3c css: Implement font-stretch 
The font-stretch CSS property is defined in the Level 3 CSS Fonts
module, available at:

  http://dev.w3.org/csswg/css-fonts/#propdef-font-stretch

It allows defining a normal, condensed, or expanded face to the font
description. Pango already supports it, so this is literally just the
CSS parser machinery needed to bridge our CSS to the FontDescription
API.

https://bugzilla.gnome.org/show_bug.cgi?id=735593
2014-08-28 13:41:40 +01:00

1294 lines
44 KiB
C
Raw Blame History

/*
* Copyright © 2011 Red Hat Inc.
*
* 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 2.1 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gtkcssshorthandpropertyprivate.h"
#include <cairo-gobject.h>
#include <math.h>
#include "gtkcssarrayvalueprivate.h"
#include "gtkcssbgsizevalueprivate.h"
#include "gtkcssbordervalueprivate.h"
#include "gtkcsscolorvalueprivate.h"
#include "gtkcsscornervalueprivate.h"
#include "gtkcsseasevalueprivate.h"
#include "gtkcssenumvalueprivate.h"
#include "gtkcssimageprivate.h"
#include "gtkcssimagevalueprivate.h"
#include "gtkcssnumbervalueprivate.h"
#include "gtkcsspositionvalueprivate.h"
#include "gtkcssrepeatvalueprivate.h"
#include "gtkcssstringvalueprivate.h"
#include "gtkcssstylefuncsprivate.h"
#include "gtkcssvalueprivate.h"
#include "gtkstylepropertiesprivate.h"
#include "gtktypebuiltins.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"
/*** PARSING ***/
static gboolean
value_is_done_parsing (GtkCssParser *parser)
{
return _gtk_css_parser_is_eof (parser) ||
_gtk_css_parser_begins_with (parser, ',') ||
_gtk_css_parser_begins_with (parser, ';') ||
_gtk_css_parser_begins_with (parser, '}');
}
static gboolean
parse_four_numbers (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser,
GtkCssNumberParseFlags flags)
{
guint i;
for (i = 0; i < 4; i++)
{
if (!_gtk_css_parser_has_number (parser))
break;
values[i] = _gtk_css_number_value_parse (parser, flags);
if (values[i] == NULL)
return FALSE;
}
if (i == 0)
{
_gtk_css_parser_error (parser, "Expected a length");
return FALSE;
}
for (; i < 4; i++)
{
values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
}
return TRUE;
}
static gboolean
parse_margin (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
return parse_four_numbers (shorthand,
values,
parser,
GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH);
}
static gboolean
parse_padding (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
return parse_four_numbers (shorthand,
values,
parser,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH);
}
static gboolean
parse_border_width (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
return parse_four_numbers (shorthand,
values,
parser,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH);
}
static gboolean
parse_border_radius (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
GtkCssValue *x[4] = { NULL, }, *y[4] = { NULL, };
guint i;
for (i = 0; i < 4; i++)
{
if (!_gtk_css_parser_has_number (parser))
break;
x[i] = _gtk_css_number_value_parse (parser,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_PARSE_PERCENT
| GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH);
if (x[i] == NULL)
goto fail;
}
if (i == 0)
{
_gtk_css_parser_error (parser, "Expected a number");
goto fail;
}
/* The magic (i - 1) >> 1 below makes it take the correct value
* according to spec. Feel free to check the 4 cases */
for (; i < 4; i++)
x[i] = _gtk_css_value_ref (x[(i - 1) >> 1]);
if (_gtk_css_parser_try (parser, "/", TRUE))
{
for (i = 0; i < 4; i++)
{
if (!_gtk_css_parser_has_number (parser))
break;
y[i] = _gtk_css_number_value_parse (parser,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_PARSE_PERCENT
| GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH);
if (y[i] == NULL)
goto fail;
}
if (i == 0)
{
_gtk_css_parser_error (parser, "Expected a number");
goto fail;
}
for (; i < 4; i++)
y[i] = _gtk_css_value_ref (y[(i - 1) >> 1]);
}
else
{
for (i = 0; i < 4; i++)
y[i] = _gtk_css_value_ref (x[i]);
}
for (i = 0; i < 4; i++)
{
values[i] = _gtk_css_corner_value_new (x[i], y[i]);
}
return TRUE;
fail:
for (i = 0; i < 4; i++)
{
if (x[i])
_gtk_css_value_unref (x[i]);
if (y[i])
_gtk_css_value_unref (y[i]);
}
return FALSE;
}
static gboolean
parse_border_color (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
guint i;
for (i = 0; i < 4; i++)
{
values[i] = _gtk_css_color_value_parse (parser);
if (values[i] == NULL)
return FALSE;
if (value_is_done_parsing (parser))
break;
}
for (i++; i < 4; i++)
{
values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
}
return TRUE;
}
static gboolean
parse_border_style (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
guint i;
for (i = 0; i < 4; i++)
{
values[i] = _gtk_css_border_style_value_try_parse (parser);
if (values[i] == NULL)
break;
}
if (i == 0)
{
_gtk_css_parser_error (parser, "Expected a border style");
return FALSE;
}
for (; i < 4; i++)
values[i] = _gtk_css_value_ref (values[(i - 1) >> 1]);
return TRUE;
}
static gboolean
parse_border_image (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
do
{
if (values[0] == NULL &&
(_gtk_css_parser_has_prefix (parser, "none") ||
_gtk_css_image_can_parse (parser)))
{
GtkCssImage *image;
if (_gtk_css_parser_try (parser, "none", TRUE))
image = NULL;
else
{
image = _gtk_css_image_new_parse (parser);
if (image == NULL)
return FALSE;
}
values[0] = _gtk_css_image_value_new (image);
}
else if (values[3] == NULL &&
(values[3] = _gtk_css_border_repeat_value_try_parse (parser)))
{
/* please move along */
}
else if (values[1] == NULL)
{
values[1] = _gtk_css_border_value_parse (parser,
GTK_CSS_PARSE_PERCENT
| GTK_CSS_PARSE_NUMBER
| GTK_CSS_POSITIVE_ONLY,
FALSE,
TRUE);
if (values[1] == NULL)
return FALSE;
if (_gtk_css_parser_try (parser, "/", TRUE))
{
values[2] = _gtk_css_border_value_parse (parser,
GTK_CSS_PARSE_PERCENT
| GTK_CSS_PARSE_LENGTH
| GTK_CSS_PARSE_NUMBER
| GTK_CSS_POSITIVE_ONLY,
TRUE,
FALSE);
if (values[2] == NULL)
return FALSE;
}
}
else
{
/* We parsed everything and there's still stuff left?
* Pretend we didn't notice and let the normal code produce
* a 'junk at end of value' error */
break;
}
}
while (!value_is_done_parsing (parser));
return TRUE;
}
static gboolean
parse_border_side (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
do
{
if (values[0] == NULL &&
_gtk_css_parser_has_number (parser))
{
values[0] = _gtk_css_number_value_parse (parser,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH);
if (values[0] == NULL)
return FALSE;
}
else if (values[1] == NULL &&
(values[1] = _gtk_css_border_style_value_try_parse (parser)))
{
/* Nothing to do */
}
else if (values[2] == NULL)
{
values[2] = _gtk_css_color_value_parse (parser);
if (values[2] == NULL)
return FALSE;
}
else
{
/* We parsed and there's still stuff left?
* Pretend we didn't notice and let the normal code produce
* a 'junk at end of value' error */
break;
}
}
while (!value_is_done_parsing (parser));
return TRUE;
}
static gboolean
parse_border (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
do
{
if (values[0] == NULL &&
_gtk_css_parser_has_number (parser))
{
values[0] = _gtk_css_number_value_parse (parser,
GTK_CSS_POSITIVE_ONLY
| GTK_CSS_NUMBER_AS_PIXELS
| GTK_CSS_PARSE_LENGTH);
if (values[0] == NULL)
return FALSE;
values[1] = _gtk_css_value_ref (values[0]);
values[2] = _gtk_css_value_ref (values[0]);
values[3] = _gtk_css_value_ref (values[0]);
}
else if (values[4] == NULL &&
(values[4] = _gtk_css_border_style_value_try_parse (parser)))
{
values[5] = _gtk_css_value_ref (values[4]);
values[6] = _gtk_css_value_ref (values[4]);
values[7] = _gtk_css_value_ref (values[4]);
}
else if (!G_IS_VALUE (&values[8]))
{
values[8] = _gtk_css_color_value_parse (parser);
if (values[8] == NULL)
return FALSE;
values[9] = _gtk_css_value_ref (values[8]);
values[10] = _gtk_css_value_ref (values[8]);
values[11] = _gtk_css_value_ref (values[8]);
}
else
{
/* We parsed everything and there's still stuff left?
* Pretend we didn't notice and let the normal code produce
* a 'junk at end of value' error */
break;
}
}
while (!value_is_done_parsing (parser));
/* Note that border-image values are not set: according to the spec
they just need to be reset when using the border shorthand */
return TRUE;
}
static gboolean
parse_font (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
PangoFontDescription *desc;
guint mask;
char *str;
str = _gtk_css_parser_read_value (parser);
if (str == NULL)
return FALSE;
desc = pango_font_description_from_string (str);
g_free (str);
mask = pango_font_description_get_set_fields (desc);
if (mask & PANGO_FONT_MASK_FAMILY)
{
values[0] = _gtk_css_array_value_new (_gtk_css_string_value_new (pango_font_description_get_family (desc)));
}
if (mask & PANGO_FONT_MASK_STYLE)
{
values[1] = _gtk_css_font_style_value_new (pango_font_description_get_style (desc));
}
if (mask & PANGO_FONT_MASK_VARIANT)
{
values[2] = _gtk_css_font_variant_value_new (pango_font_description_get_variant (desc));
}
if (mask & PANGO_FONT_MASK_WEIGHT)
{
values[3] = _gtk_css_font_weight_value_new (pango_font_description_get_weight (desc));
}
if (mask & PANGO_FONT_MASK_STRETCH)
{
values[4] = _gtk_css_font_stretch_value_new (pango_font_description_get_stretch (desc));
}
if (mask & PANGO_FONT_MASK_SIZE)
{
values[5] = _gtk_css_number_value_new ((double) pango_font_description_get_size (desc) / PANGO_SCALE, GTK_CSS_PX);
}
pango_font_description_free (desc);
return TRUE;
}
static gboolean
parse_one_background (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
GtkCssValue *value = NULL;
do
{
/* the image part */
if (values[0] == NULL &&
(_gtk_css_parser_has_prefix (parser, "none") ||
_gtk_css_image_can_parse (parser)))
{
GtkCssImage *image;
if (_gtk_css_parser_try (parser, "none", TRUE))
image = NULL;
else
{
image = _gtk_css_image_new_parse (parser);
if (image == NULL)
return FALSE;
}
values[0] = _gtk_css_image_value_new (image);
}
else if (values[1] == NULL &&
(value = _gtk_css_position_value_try_parse (parser)))
{
values[1] = value;
value = NULL;
if (_gtk_css_parser_try (parser, "/", TRUE) &&
(value = _gtk_css_bg_size_value_parse (parser)))
{
values[2] = value;
value = NULL;
}
}
else if (values[3] == NULL &&
(value = _gtk_css_background_repeat_value_try_parse (parser)))
{
values[3] = value;
value = NULL;
}
else if ((values[4] == NULL || values[5] == NULL) &&
(value = _gtk_css_area_value_try_parse (parser)))
{
values[4] = value;
if (values[5] == NULL)
{
values[5] = values[4];
values[4] = NULL;
}
value = NULL;
}
else if (values[6] == NULL)
{
value = _gtk_css_color_value_parse (parser);
if (value == NULL)
values[6] = _gtk_css_value_ref (_gtk_css_style_property_get_initial_value
(_gtk_css_shorthand_property_get_subproperty (shorthand, 6)));
else
values[6] = value;
value = NULL;
}
else
{
/* We parsed everything and there's still stuff left?
* Pretend we didn't notice and let the normal code produce
* a 'junk at end of value' error */
break;
}
}
while (!value_is_done_parsing (parser));
if (values[5] != NULL && values[4] == NULL)
values[4] = _gtk_css_value_ref (values[5]);
return TRUE;
}
static gboolean
parse_background (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
GtkCssValue *step_values[7];
GPtrArray *arrays[6];
guint i;
for (i = 0; i < 6; i++)
{
arrays[i] = g_ptr_array_new ();
step_values[i] = NULL;
}
step_values[6] = NULL;
do {
if (!parse_one_background (shorthand, step_values, parser))
{
for (i = 0; i < 6; i++)
{
g_ptr_array_set_free_func (arrays[i], (GDestroyNotify) _gtk_css_value_unref);
g_ptr_array_unref (arrays[i]);
}
return FALSE;
}
for (i = 0; i < 6; i++)
{
if (step_values[i] == NULL)
{
GtkCssValue *initial = _gtk_css_style_property_get_initial_value (
_gtk_css_shorthand_property_get_subproperty (shorthand, i));
step_values[i] = _gtk_css_value_ref (_gtk_css_array_value_get_nth (initial, 0));
}
g_ptr_array_add (arrays[i], step_values[i]);
step_values[i] = NULL;
}
} while (_gtk_css_parser_try (parser, ",", TRUE));
for (i = 0; i < 6; i++)
{
values[i] = _gtk_css_array_value_new_from_array ((GtkCssValue **) arrays[i]->pdata, arrays[i]->len);
g_ptr_array_unref (arrays[i]);
}
values[6] = step_values[6];
return TRUE;
}
static gboolean
parse_one_transition (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
do
{
/* the image part */
if (values[2] == NULL &&
_gtk_css_parser_has_number (parser) && !_gtk_css_parser_begins_with (parser, '-'))
{
GtkCssValue *number = _gtk_css_number_value_parse (parser, GTK_CSS_PARSE_TIME);
if (number == NULL)
return FALSE;
if (values[1] == NULL)
values[1] = number;
else
values[2] = number;
}
else if (values[3] == NULL &&
_gtk_css_ease_value_can_parse (parser))
{
values[3] = _gtk_css_ease_value_parse (parser);
if (values[3] == NULL)
return FALSE;
}
else if (values[0] == NULL)
{
values[0] = _gtk_css_ident_value_try_parse (parser);
if (values[0] == NULL)
{
_gtk_css_parser_error (parser, "Unknown value for property");
return FALSE;
}
}
else
{
/* We parsed everything and there's still stuff left?
* Pretend we didn't notice and let the normal code produce
* a 'junk at end of value' error */
break;
}
}
while (!value_is_done_parsing (parser));
return TRUE;
}
static gboolean
parse_transition (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
GtkCssValue *step_values[4];
GPtrArray *arrays[4];
guint i;
for (i = 0; i < 4; i++)
{
arrays[i] = g_ptr_array_new ();
step_values[i] = NULL;
}
do {
if (!parse_one_transition (shorthand, step_values, parser))
{
for (i = 0; i < 4; i++)
{
g_ptr_array_set_free_func (arrays[i], (GDestroyNotify) _gtk_css_value_unref);
g_ptr_array_unref (arrays[i]);
}
return FALSE;
}
for (i = 0; i < 4; i++)
{
if (step_values[i] == NULL)
{
GtkCssValue *initial = _gtk_css_style_property_get_initial_value (
_gtk_css_shorthand_property_get_subproperty (shorthand, i));
step_values[i] = _gtk_css_value_ref (_gtk_css_array_value_get_nth (initial, 0));
}
g_ptr_array_add (arrays[i], step_values[i]);
step_values[i] = NULL;
}
} while (_gtk_css_parser_try (parser, ",", TRUE));
for (i = 0; i < 4; i++)
{
values[i] = _gtk_css_array_value_new_from_array ((GtkCssValue **) arrays[i]->pdata, arrays[i]->len);
g_ptr_array_unref (arrays[i]);
}
return TRUE;
}
static gboolean
parse_one_animation (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
do
{
if (values[1] == NULL && _gtk_css_parser_try (parser, "infinite", TRUE))
{
values[1] = _gtk_css_number_value_new (HUGE_VAL, GTK_CSS_NUMBER);
}
else if ((values[1] == NULL || values[3] == NULL) &&
_gtk_css_parser_has_number (parser))
{
GtkCssValue *value;
value = _gtk_css_number_value_parse (parser,
GTK_CSS_POSITIVE_ONLY
| (values[1] == NULL ? GTK_CSS_PARSE_NUMBER : 0)
| (values[3] == NULL ? GTK_CSS_PARSE_TIME : 0));
if (value == NULL)
return FALSE;
if (_gtk_css_number_value_get_unit (value) == GTK_CSS_NUMBER)
values[1] = value;
else if (values[2] == NULL)
values[2] = value;
else
values[3] = value;
}
else if (values[4] == NULL &&
_gtk_css_ease_value_can_parse (parser))
{
values[4] = _gtk_css_ease_value_parse (parser);
if (values[4] == NULL)
return FALSE;
}
else if (values[5] == NULL &&
(values[5] = _gtk_css_direction_value_try_parse (parser)))
{
/* nothing to do */
}
else if (values[6] == NULL &&
(values[6] = _gtk_css_fill_mode_value_try_parse (parser)))
{
/* nothing to do */
}
else if (values[0] == NULL &&
(values[0] = _gtk_css_ident_value_try_parse (parser)))
{
/* nothing to do */
/* keep in mind though that this needs to come last as fill modes, directions
* etc are valid idents */
}
else
{
/* We parsed everything and there's still stuff left?
* Pretend we didn't notice and let the normal code produce
* a 'junk at end of value' error */
break;
}
}
while (!value_is_done_parsing (parser));
return TRUE;
}
static gboolean
parse_animation (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
GtkCssValue *step_values[7];
GPtrArray *arrays[7];
guint i;
for (i = 0; i < 7; i++)
{
arrays[i] = g_ptr_array_new ();
step_values[i] = NULL;
}
do {
if (!parse_one_animation (shorthand, step_values, parser))
{
for (i = 0; i < 7; i++)
{
g_ptr_array_set_free_func (arrays[i], (GDestroyNotify) _gtk_css_value_unref);
g_ptr_array_unref (arrays[i]);
}
return FALSE;
}
for (i = 0; i < 7; i++)
{
if (step_values[i] == NULL)
{
GtkCssValue *initial = _gtk_css_style_property_get_initial_value (
_gtk_css_shorthand_property_get_subproperty (shorthand, i));
step_values[i] = _gtk_css_value_ref (_gtk_css_array_value_get_nth (initial, 0));
}
g_ptr_array_add (arrays[i], step_values[i]);
step_values[i] = NULL;
}
} while (_gtk_css_parser_try (parser, ",", TRUE));
for (i = 0; i < 7; i++)
{
values[i] = _gtk_css_array_value_new_from_array ((GtkCssValue **) arrays[i]->pdata, arrays[i]->len);
g_ptr_array_unref (arrays[i]);
}
return TRUE;
}
static gboolean
parse_all (GtkCssShorthandProperty *shorthand,
GtkCssValue **values,
GtkCssParser *parser)
{
_gtk_css_parser_error (parser, "The 'all' property can only be set to 'initial', 'inherit' or 'unset'");
return FALSE;
}
/*** PACKING ***/
static void
unpack_border (GtkCssShorthandProperty *shorthand,
GtkStyleProperties *props,
GtkStateFlags state,
const GValue *value)
{
GValue v = G_VALUE_INIT;
GtkBorder *border = g_value_get_boxed (value);
g_value_init (&v, G_TYPE_INT);
g_value_set_int (&v, border->top);
_gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 0)), props, state, &v);
g_value_set_int (&v, border->right);
_gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 1)), props, state, &v);
g_value_set_int (&v, border->bottom);
_gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 2)), props, state, &v);
g_value_set_int (&v, border->left);
_gtk_style_property_assign (GTK_STYLE_PROPERTY (_gtk_css_shorthand_property_get_subproperty (shorthand, 3)), props, state, &v);
g_value_unset (&v);
}
static void
pack_border (GtkCssShorthandProperty *shorthand,
GValue *value,
GtkStyleQueryFunc query_func,
gpointer query_data)
{
GtkCssStyleProperty *prop;
GtkBorder border;
GValue v;
prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 0);
_gtk_style_property_query (GTK_STYLE_PROPERTY (prop), &v, query_func, query_data);
border.top = g_value_get_int (&v);
g_value_unset (&v);
prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 1);
_gtk_style_property_query (GTK_STYLE_PROPERTY (prop), &v, query_func, query_data);
border.right = g_value_get_int (&v);
g_value_unset (&v);
prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 2);
_gtk_style_property_query (GTK_STYLE_PROPERTY (prop), &v, query_func, query_data);
border.bottom = g_value_get_int (&v);
g_value_unset (&v);
prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 3);
_gtk_style_property_query (GTK_STYLE_PROPERTY (prop), &v, query_func, query_data);
border.left = g_value_get_int (&v);
g_value_unset (&v);
g_value_init (value, GTK_TYPE_BORDER);
g_value_set_boxed (value, &border);
}
static void
unpack_border_radius (GtkCssShorthandProperty *shorthand,
GtkStyleProperties *props,
GtkStateFlags state,
const GValue *value)
{
GtkCssValue *css_value;
guint i;
css_value = _gtk_css_corner_value_new (_gtk_css_number_value_new (g_value_get_int (value), GTK_CSS_PX),
_gtk_css_number_value_new (g_value_get_int (value), GTK_CSS_PX));
for (i = 0; i < 4; i++)
_gtk_style_properties_set_property_by_property (props,
_gtk_css_shorthand_property_get_subproperty (shorthand, i),
state,
css_value);
_gtk_css_value_unref (css_value);
}
static void
pack_border_radius (GtkCssShorthandProperty *shorthand,
GValue *value,
GtkStyleQueryFunc query_func,
gpointer query_data)
{
GtkCssStyleProperty *prop;
GtkCssValue *v;
int i = 0;
prop = GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("border-top-left-radius"));
v = (* query_func) (_gtk_css_style_property_get_id (prop), query_data);
if (v)
i = _gtk_css_corner_value_get_x (v, 100);
g_value_init (value, G_TYPE_INT);
g_value_set_int (value, i);
}
static void
unpack_font_description (GtkCssShorthandProperty *shorthand,
GtkStyleProperties *props,
GtkStateFlags state,
const GValue *value)
{
GtkStyleProperty *prop;
PangoFontDescription *description;
PangoFontMask mask;
GValue v = G_VALUE_INIT;
/* For backwards compat, we only unpack values that are indeed set.
* For strict CSS conformance we need to unpack all of them.
* Note that we do set all of them in the parse function, so it
* will not have effects when parsing CSS files. It will though
* for custom style providers.
*/
description = g_value_get_boxed (value);
if (description)
mask = pango_font_description_get_set_fields (description);
else
mask = 0;
if (mask & PANGO_FONT_MASK_FAMILY)
{
GPtrArray *strv = g_ptr_array_new ();
g_ptr_array_add (strv, g_strdup (pango_font_description_get_family (description)));
g_ptr_array_add (strv, NULL);
g_value_init (&v, G_TYPE_STRV);
g_value_take_boxed (&v, g_ptr_array_free (strv, FALSE));
prop = _gtk_style_property_lookup ("font-family");
_gtk_style_property_assign (prop, props, state, &v);
g_value_unset (&v);
}
if (mask & PANGO_FONT_MASK_STYLE)
{
g_value_init (&v, PANGO_TYPE_STYLE);
g_value_set_enum (&v, pango_font_description_get_style (description));
prop = _gtk_style_property_lookup ("font-style");
_gtk_style_property_assign (prop, props, state, &v);
g_value_unset (&v);
}
if (mask & PANGO_FONT_MASK_VARIANT)
{
g_value_init (&v, PANGO_TYPE_VARIANT);
g_value_set_enum (&v, pango_font_description_get_variant (description));
prop = _gtk_style_property_lookup ("font-variant");
_gtk_style_property_assign (prop, props, state, &v);
g_value_unset (&v);
}
if (mask & PANGO_FONT_MASK_WEIGHT)
{
g_value_init (&v, PANGO_TYPE_WEIGHT);
g_value_set_enum (&v, pango_font_description_get_weight (description));
prop = _gtk_style_property_lookup ("font-weight");
_gtk_style_property_assign (prop, props, state, &v);
g_value_unset (&v);
}
if (mask & PANGO_FONT_MASK_STRETCH)
{
g_value_init (&v, PANGO_TYPE_STRETCH);
g_value_set_enum (&v, pango_font_description_get_stretch (description));
prop = _gtk_style_property_lookup ("font-stretch");
_gtk_style_property_assign (prop, props, state, &v);
g_value_unset (&v);
}
if (mask & PANGO_FONT_MASK_SIZE)
{
g_value_init (&v, G_TYPE_DOUBLE);
g_value_set_double (&v, (double) pango_font_description_get_size (description) / PANGO_SCALE);
prop = _gtk_style_property_lookup ("font-size");
_gtk_style_property_assign (prop, props, state, &v);
g_value_unset (&v);
}
}
static void
pack_font_description (GtkCssShorthandProperty *shorthand,
GValue *value,
GtkStyleQueryFunc query_func,
gpointer query_data)
{
PangoFontDescription *description;
GtkCssValue *v;
description = pango_font_description_new ();
v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-family"))), query_data);
if (v)
{
/* xxx: Can we set all the families here somehow? */
pango_font_description_set_family (description, _gtk_css_string_value_get (_gtk_css_array_value_get_nth (v, 0)));
}
v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-size"))), query_data);
if (v)
pango_font_description_set_size (description, round (_gtk_css_number_value_get (v, 100) * PANGO_SCALE));
v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-style"))), query_data);
if (v)
pango_font_description_set_style (description, _gtk_css_font_style_value_get (v));
v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-variant"))), query_data);
if (v)
pango_font_description_set_variant (description, _gtk_css_font_variant_value_get (v));
v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-weight"))), query_data);
if (v)
pango_font_description_set_weight (description, _gtk_css_font_weight_value_get (v));
v = (* query_func) (_gtk_css_style_property_get_id (GTK_CSS_STYLE_PROPERTY (_gtk_style_property_lookup ("font-stretch"))), query_data);
if (v)
pango_font_description_set_stretch (description, _gtk_css_font_stretch_value_get (v));
g_value_init (value, PANGO_TYPE_FONT_DESCRIPTION);
g_value_take_boxed (value, description);
}
static void
unpack_to_everything (GtkCssShorthandProperty *shorthand,
GtkStyleProperties *props,
GtkStateFlags state,
const GValue *value)
{
GtkCssStyleProperty *prop;
guint i, n;
n = _gtk_css_shorthand_property_get_n_subproperties (shorthand);
for (i = 0; i < n; i++)
{
prop = _gtk_css_shorthand_property_get_subproperty (shorthand, i);
_gtk_style_property_assign (GTK_STYLE_PROPERTY (prop), props, state, value);
}
}
static void
pack_first_element (GtkCssShorthandProperty *shorthand,
GValue *value,
GtkStyleQueryFunc query_func,
gpointer query_data)
{
GtkCssStyleProperty *prop;
/* NB: This is a fallback for properties that originally were
* not used as shorthand. We just pick the first subproperty
* as a representative.
* Lesson learned: Don't query the shorthand, query the
* real properties instead. */
prop = _gtk_css_shorthand_property_get_subproperty (shorthand, 0);
_gtk_style_property_query (GTK_STYLE_PROPERTY (prop),
value,
query_func,
query_data);
}
static void
_gtk_css_shorthand_property_register (const char *name,
GType value_type,
const char **subproperties,
GtkCssShorthandPropertyParseFunc parse_func,
GtkCssShorthandPropertyAssignFunc assign_func,
GtkCssShorthandPropertyQueryFunc query_func)
{
GtkCssShorthandProperty *node;
node = g_object_new (GTK_TYPE_CSS_SHORTHAND_PROPERTY,
"name", name,
"value-type", value_type,
"subproperties", subproperties,
NULL);
node->parse = parse_func;
node->assign = assign_func;
node->query = query_func;
}
/* NB: return value is transfer: container */
static const char **
get_all_subproperties (void)
{
const char **properties;
guint i, n;
n = _gtk_css_style_property_get_n_properties ();
properties = g_new (const char *, n + 1);
properties[n] = NULL;
for (i = 0; i < n; i++)
{
properties[i] = _gtk_style_property_get_name (GTK_STYLE_PROPERTY (_gtk_css_style_property_lookup_by_id (i)));
}
return properties;
}
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-stretch", "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_style_subproperties[] = { "border-top-style", "border-right-style", "border-bottom-style", "border-left-style", NULL };
const char *border_image_subproperties[] = { "border-image-source", "border-image-slice", "border-image-width", "border-image-repeat", NULL };
const char *border_top_subproperties[] = { "border-top-width", "border-top-style", "border-top-color", NULL };
const char *border_right_subproperties[] = { "border-right-width", "border-right-style", "border-right-color", NULL };
const char *border_bottom_subproperties[] = { "border-bottom-width", "border-bottom-style", "border-bottom-color", NULL };
const char *border_left_subproperties[] = { "border-left-width", "border-left-style", "border-left-color", NULL };
const char *border_subproperties[] = { "border-top-width", "border-right-width", "border-bottom-width", "border-left-width",
"border-top-style", "border-right-style", "border-bottom-style", "border-left-style",
"border-top-color", "border-right-color", "border-bottom-color", "border-left-color",
"border-image-source", "border-image-slice", "border-image-width", "border-image-repeat", NULL };
const char *outline_subproperties[] = { "outline-width", "outline-style", "outline-color", NULL };
const char *outline_radius_subproperties[] = { "outline-top-left-radius", "outline-top-right-radius",
"outline-bottom-right-radius", "outline-bottom-left-radius", NULL };
const char *background_subproperties[] = { "background-image", "background-position", "background-size", "background-repeat", "background-clip", "background-origin",
"background-color", NULL };
const char *transition_subproperties[] = { "transition-property", "transition-duration", "transition-delay", "transition-timing-function", NULL };
const char *animation_subproperties[] = { "animation-name", "animation-iteration-count", "animation-duration", "animation-delay",
"animation-timing-function", "animation-direction", "animation-fill-mode", NULL };
const char **all_subproperties;
_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_margin,
unpack_border,
pack_border);
_gtk_css_shorthand_property_register ("padding",
GTK_TYPE_BORDER,
padding_subproperties,
parse_padding,
unpack_border,
pack_border);
_gtk_css_shorthand_property_register ("border-width",
GTK_TYPE_BORDER,
border_width_subproperties,
parse_border_width,
unpack_border,
pack_border);
_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_to_everything,
pack_first_element);
_gtk_css_shorthand_property_register ("border-style",
GTK_TYPE_BORDER_STYLE,
border_style_subproperties,
parse_border_style,
unpack_to_everything,
pack_first_element);
_gtk_css_shorthand_property_register ("border-image",
G_TYPE_NONE,
border_image_subproperties,
parse_border_image,
NULL,
NULL);
_gtk_css_shorthand_property_register ("border-top",
G_TYPE_NONE,
border_top_subproperties,
parse_border_side,
NULL,
NULL);
_gtk_css_shorthand_property_register ("border-right",
G_TYPE_NONE,
border_right_subproperties,
parse_border_side,
NULL,
NULL);
_gtk_css_shorthand_property_register ("border-bottom",
G_TYPE_NONE,
border_bottom_subproperties,
parse_border_side,
NULL,
NULL);
_gtk_css_shorthand_property_register ("border-left",
G_TYPE_NONE,
border_left_subproperties,
parse_border_side,
NULL,
NULL);
_gtk_css_shorthand_property_register ("border",
G_TYPE_NONE,
border_subproperties,
parse_border,
NULL,
NULL);
_gtk_css_shorthand_property_register ("outline-radius",
G_TYPE_INT,
outline_radius_subproperties,
parse_border_radius,
unpack_border_radius,
pack_border_radius);
_gtk_css_shorthand_property_register ("outline",
G_TYPE_NONE,
outline_subproperties,
parse_border_side,
NULL,
NULL);
_gtk_css_shorthand_property_register ("background",
G_TYPE_NONE,
background_subproperties,
parse_background,
NULL,
NULL);
_gtk_css_shorthand_property_register ("transition",
G_TYPE_NONE,
transition_subproperties,
parse_transition,
NULL,
NULL);
_gtk_css_shorthand_property_register ("animation",
G_TYPE_NONE,
animation_subproperties,
parse_animation,
NULL,
NULL);
all_subproperties = get_all_subproperties ();
_gtk_css_shorthand_property_register ("all",
G_TYPE_NONE,
all_subproperties,
parse_all,
NULL,
NULL);
g_free (all_subproperties);
}
Reference in New Issue View Git Blame Copy Permalink