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gtk/gtk/gtkstyleproperty.c
Benjamin Otte 0d253b67f4 css: Make font property a shorthand 
... and implement the CSS font properties:
- font-size
- font-style
- font-family
- font-weight
- font-variant

This is the second try at this. The first was backed out previously due
to bugginess. Let's hope this one survives a bit longer.

Also makes the font-family CSS test work again.
2011-06-15 12:52:53 +02:00

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/* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "gtkstylepropertyprivate.h"
#include <errno.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <cairo-gobject.h>
#include "gtkcssprovider.h"
#include "gtkcssparserprivate.h"
#include "gtkcsstypesprivate.h"
/* the actual parsers we have */
#include "gtkanimationdescription.h"
#include "gtkbindings.h"
#include "gtkborderimageprivate.h"
#include "gtkgradient.h"
#include "gtkshadowprivate.h"
#include "gtkthemingengine.h"
#include "gtktypebuiltins.h"
static GHashTable *parse_funcs = NULL;
static GHashTable *print_funcs = NULL;
static GHashTable *properties = NULL;
static void
register_conversion_function (GType type,
GtkStyleParseFunc parse,
GtkStylePrintFunc print)
{
if (parse)
g_hash_table_insert (parse_funcs, GSIZE_TO_POINTER (type), parse);
if (print)
g_hash_table_insert (print_funcs, GSIZE_TO_POINTER (type), print);
}
static void
string_append_double (GString *string,
double d)
{
char buf[G_ASCII_DTOSTR_BUF_SIZE];
g_ascii_dtostr (buf, sizeof (buf), d);
g_string_append (string, buf);
}
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 gboolean
rgba_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GtkSymbolicColor *symbolic;
GdkRGBA rgba;
symbolic = _gtk_css_parser_read_symbolic_color (parser);
if (symbolic == NULL)
return FALSE;
if (gtk_symbolic_color_resolve (symbolic, NULL, &rgba))
{
g_value_set_boxed (value, &rgba);
gtk_symbolic_color_unref (symbolic);
}
else
{
g_value_unset (value);
g_value_init (value, GTK_TYPE_SYMBOLIC_COLOR);
g_value_take_boxed (value, symbolic);
}
return TRUE;
}
static void
rgba_value_print (const GValue *value,
GString *string)
{
const GdkRGBA *rgba = g_value_get_boxed (value);
if (rgba == NULL)
g_string_append (string, "none");
else
{
char *s = gdk_rgba_to_string (rgba);
g_string_append (string, s);
g_free (s);
}
}
static gboolean
color_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GtkSymbolicColor *symbolic;
GdkRGBA rgba;
symbolic = _gtk_css_parser_read_symbolic_color (parser);
if (symbolic == NULL)
return FALSE;
if (gtk_symbolic_color_resolve (symbolic, NULL, &rgba))
{
GdkColor color;
color.red = rgba.red * 65535. + 0.5;
color.green = rgba.green * 65535. + 0.5;
color.blue = rgba.blue * 65535. + 0.5;
g_value_set_boxed (value, &color);
}
else
{
g_value_unset (value);
g_value_init (value, GTK_TYPE_SYMBOLIC_COLOR);
g_value_take_boxed (value, symbolic);
}
return TRUE;
}
static void
color_value_print (const GValue *value,
GString *string)
{
const GdkColor *color = g_value_get_boxed (value);
if (color == NULL)
g_string_append (string, "none");
else
{
char *s = gdk_color_to_string (color);
g_string_append (string, s);
g_free (s);
}
}
static gboolean
symbolic_color_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GtkSymbolicColor *symbolic;
symbolic = _gtk_css_parser_read_symbolic_color (parser);
if (symbolic == NULL)
return FALSE;
g_value_take_boxed (value, symbolic);
return TRUE;
}
static void
symbolic_color_value_print (const GValue *value,
GString *string)
{
GtkSymbolicColor *symbolic = g_value_get_boxed (value);
if (symbolic == NULL)
g_string_append (string, "none");
else
{
char *s = gtk_symbolic_color_to_string (symbolic);
g_string_append (string, s);
g_free (s);
}
}
static gboolean
font_family_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
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);
g_value_set_boxed (value, g_ptr_array_free (names, FALSE));
return TRUE;
}
static void
font_family_value_print (const GValue *value,
GString *string)
{
const char **names = g_value_get_boxed (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 gboolean
font_description_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
PangoFontDescription *font_desc;
char *str;
str = _gtk_css_parser_read_value (parser);
if (str == NULL)
return FALSE;
font_desc = pango_font_description_from_string (str);
g_free (str);
g_value_take_boxed (value, font_desc);
return TRUE;
}
static void
font_description_value_print (const GValue *value,
GString *string)
{
const PangoFontDescription *desc = g_value_get_boxed (value);
if (desc == NULL)
g_string_append (string, "none");
else
{
char *s = pango_font_description_to_string (desc);
g_string_append (string, s);
g_free (s);
}
}
static gboolean
boolean_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
if (_gtk_css_parser_try (parser, "true", TRUE) ||
_gtk_css_parser_try (parser, "1", TRUE))
{
g_value_set_boolean (value, TRUE);
return TRUE;
}
else if (_gtk_css_parser_try (parser, "false", TRUE) ||
_gtk_css_parser_try (parser, "0", TRUE))
{
g_value_set_boolean (value, FALSE);
return TRUE;
}
else
{
_gtk_css_parser_error (parser, "Expected a boolean value");
return FALSE;
}
}
static void
boolean_value_print (const GValue *value,
GString *string)
{
if (g_value_get_boolean (value))
g_string_append (string, "true");
else
g_string_append (string, "false");
}
static gboolean
int_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
gint i;
if (!_gtk_css_parser_try_int (parser, &i))
{
_gtk_css_parser_error (parser, "Expected a valid integer value");
return FALSE;
}
g_value_set_int (value, i);
return TRUE;
}
static void
int_value_print (const GValue *value,
GString *string)
{
g_string_append_printf (string, "%d", g_value_get_int (value));
}
static gboolean
uint_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
guint u;
if (!_gtk_css_parser_try_uint (parser, &u))
{
_gtk_css_parser_error (parser, "Expected a valid unsigned value");
return FALSE;
}
g_value_set_uint (value, u);
return TRUE;
}
static void
uint_value_print (const GValue *value,
GString *string)
{
g_string_append_printf (string, "%u", g_value_get_uint (value));
}
static gboolean
double_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
gdouble d;
if (!_gtk_css_parser_try_double (parser, &d))
{
_gtk_css_parser_error (parser, "Expected a number");
return FALSE;
}
g_value_set_double (value, d);
return TRUE;
}
static void
double_value_print (const GValue *value,
GString *string)
{
string_append_double (string, g_value_get_double (value));
}
static gboolean
float_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
gdouble d;
if (!_gtk_css_parser_try_double (parser, &d))
{
_gtk_css_parser_error (parser, "Expected a number");
return FALSE;
}
g_value_set_float (value, d);
return TRUE;
}
static void
float_value_print (const GValue *value,
GString *string)
{
string_append_double (string, g_value_get_float (value));
}
static gboolean
string_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
char *str = _gtk_css_parser_read_string (parser);
if (str == NULL)
return FALSE;
g_value_take_string (value, str);
return TRUE;
}
static void
string_value_print (const GValue *value,
GString *str)
{
string_append_string (str, g_value_get_string (value));
}
static gboolean
theming_engine_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GtkThemingEngine *engine;
char *str;
str = _gtk_css_parser_try_ident (parser, TRUE);
if (str == NULL)
{
_gtk_css_parser_error (parser, "Expected a valid theme name");
return FALSE;
}
engine = gtk_theming_engine_load (str);
if (engine == NULL)
{
_gtk_css_parser_error (parser, "Themeing engine '%s' not found", str);
g_free (str);
return FALSE;
}
g_value_set_object (value, engine);
g_free (str);
return TRUE;
}
static void
theming_engine_value_print (const GValue *value,
GString *string)
{
GtkThemingEngine *engine;
char *name;
engine = g_value_get_object (value);
if (engine == NULL)
g_string_append (string, "none");
else
{
/* XXX: gtk_theming_engine_get_name()? */
g_object_get (engine, "name", &name, NULL);
g_string_append (string, name);
g_free (name);
}
}
static gboolean
animation_description_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GtkAnimationDescription *desc;
char *str;
str = _gtk_css_parser_read_value (parser);
if (str == NULL)
return FALSE;
desc = _gtk_animation_description_from_string (str);
g_free (str);
if (desc == NULL)
{
_gtk_css_parser_error (parser, "Invalid animation description");
return FALSE;
}
g_value_take_boxed (value, desc);
return TRUE;
}
static void
animation_description_value_print (const GValue *value,
GString *string)
{
GtkAnimationDescription *desc = g_value_get_boxed (value);
if (desc == NULL)
g_string_append (string, "none");
else
_gtk_animation_description_print (desc, string);
}
static gboolean
border_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GtkBorder border = { 0, };
guint i, numbers[4];
for (i = 0; i < G_N_ELEMENTS (numbers); i++)
{
if (!_gtk_css_parser_try_uint (parser, &numbers[i]))
break;
/* XXX: shouldn't allow spaces here? */
_gtk_css_parser_try (parser, "px", TRUE);
}
if (i == 0)
{
_gtk_css_parser_error (parser, "Expected valid border");
return FALSE;
}
border.top = numbers[0];
if (i > 1)
border.right = numbers[1];
else
border.right = border.top;
if (i > 2)
border.bottom = numbers[2];
else
border.bottom = border.top;
if (i > 3)
border.left = numbers[3];
else
border.left = border.right;
g_value_set_boxed (value, &border);
return TRUE;
}
static void
border_value_print (const GValue *value, GString *string)
{
const GtkBorder *border = g_value_get_boxed (value);
if (border == NULL)
g_string_append (string, "none");
else if (border->left != border->right)
g_string_append_printf (string, "%d %d %d %d", border->top, border->right, border->bottom, border->left);
else if (border->top != border->bottom)
g_string_append_printf (string, "%d %d %d", border->top, border->right, border->bottom);
else if (border->top != border->left)
g_string_append_printf (string, "%d %d", border->top, border->right);
else
g_string_append_printf (string, "%d", border->top);
}
static gboolean
gradient_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GtkGradient *gradient;
cairo_pattern_type_t type;
gdouble coords[6];
guint i;
if (!_gtk_css_parser_try (parser, "-gtk-gradient", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '-gtk-gradient'");
return FALSE;
}
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_error (parser,
"Expected '(' after '-gtk-gradient'");
return FALSE;
}
/* Parse gradient type */
if (_gtk_css_parser_try (parser, "linear", TRUE))
type = CAIRO_PATTERN_TYPE_LINEAR;
else if (_gtk_css_parser_try (parser, "radial", TRUE))
type = CAIRO_PATTERN_TYPE_RADIAL;
else
{
_gtk_css_parser_error (parser,
"Gradient type must be 'radial' or 'linear'");
return FALSE;
}
/* Parse start/stop position parameters */
for (i = 0; i < 2; i++)
{
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser,
"Expected ','");
return FALSE;
}
if (_gtk_css_parser_try (parser, "left", TRUE))
coords[i * 3] = 0;
else if (_gtk_css_parser_try (parser, "right", TRUE))
coords[i * 3] = 1;
else if (_gtk_css_parser_try (parser, "center", TRUE))
coords[i * 3] = 0.5;
else if (!_gtk_css_parser_try_double (parser, &coords[i * 3]))
{
_gtk_css_parser_error (parser,
"Expected a valid X coordinate");
return FALSE;
}
if (_gtk_css_parser_try (parser, "top", TRUE))
coords[i * 3 + 1] = 0;
else if (_gtk_css_parser_try (parser, "bottom", TRUE))
coords[i * 3 + 1] = 1;
else if (_gtk_css_parser_try (parser, "center", TRUE))
coords[i * 3 + 1] = 0.5;
else if (!_gtk_css_parser_try_double (parser, &coords[i * 3 + 1]))
{
_gtk_css_parser_error (parser,
"Expected a valid Y coordinate");
return FALSE;
}
if (type == CAIRO_PATTERN_TYPE_RADIAL)
{
/* Parse radius */
if (! _gtk_css_parser_try (parser, ",", TRUE))
{
_gtk_css_parser_error (parser,
"Expected ','");
return FALSE;
}
if (! _gtk_css_parser_try_double (parser, &coords[(i * 3) + 2]))
{
_gtk_css_parser_error (parser,
"Expected a numer for the radius");
return FALSE;
}
}
}
if (type == CAIRO_PATTERN_TYPE_LINEAR)
gradient = gtk_gradient_new_linear (coords[0], coords[1], coords[3], coords[4]);
else
gradient = gtk_gradient_new_radial (coords[0], coords[1], coords[2],
coords[3], coords[4], coords[5]);
while (_gtk_css_parser_try (parser, ",", TRUE))
{
GtkSymbolicColor *color;
gdouble position;
if (_gtk_css_parser_try (parser, "from", TRUE))
{
position = 0;
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected '('");
return FALSE;
}
}
else if (_gtk_css_parser_try (parser, "to", TRUE))
{
position = 1;
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected '('");
return FALSE;
}
}
else if (_gtk_css_parser_try (parser, "color-stop", TRUE))
{
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected '('");
return FALSE;
}
if (!_gtk_css_parser_try_double (parser, &position))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected a valid number");
return FALSE;
}
if (!_gtk_css_parser_try (parser, ",", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected a comma");
return FALSE;
}
}
else
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Not a valid color-stop definition");
return FALSE;
}
color = _gtk_css_parser_read_symbolic_color (parser);
if (color == NULL)
{
gtk_gradient_unref (gradient);
return FALSE;
}
gtk_gradient_add_color_stop (gradient, position, color);
gtk_symbolic_color_unref (color);
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected ')'");
return FALSE;
}
}
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
gtk_gradient_unref (gradient);
_gtk_css_parser_error (parser,
"Expected ')'");
return FALSE;
}
g_value_take_boxed (value, gradient);
return TRUE;
}
static void
gradient_value_print (const GValue *value,
GString *string)
{
GtkGradient *gradient = g_value_get_boxed (value);
if (gradient == NULL)
g_string_append (string, "none");
else
{
char *s = gtk_gradient_to_string (gradient);
g_string_append (string, s);
g_free (s);
}
}
static GFile *
gtk_css_parse_url (GtkCssParser *parser,
GFile *base)
{
gchar *path;
GFile *file;
if (_gtk_css_parser_try (parser, "url", FALSE))
{
if (!_gtk_css_parser_try (parser, "(", TRUE))
{
_gtk_css_parser_skip_whitespace (parser);
if (_gtk_css_parser_try (parser, "(", TRUE))
{
GError *error;
error = g_error_new_literal (GTK_CSS_PROVIDER_ERROR,
GTK_CSS_PROVIDER_ERROR_DEPRECATED,
"Whitespace between 'url' and '(' is not allowed");
_gtk_css_parser_take_error (parser, error);
}
else
{
_gtk_css_parser_error (parser, "Expected '(' after 'url'");
return NULL;
}
}
path = _gtk_css_parser_read_string (parser);
if (path == NULL)
return NULL;
if (!_gtk_css_parser_try (parser, ")", TRUE))
{
_gtk_css_parser_error (parser, "No closing ')' found for 'url'");
g_free (path);
return NULL;
}
}
else
{
path = _gtk_css_parser_try_name (parser, TRUE);
if (path == NULL)
{
_gtk_css_parser_error (parser, "Not a valid url");
return NULL;
}
}
file = g_file_resolve_relative_path (base, path);
g_free (path);
return file;
}
static gboolean
pattern_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
if (_gtk_css_parser_begins_with (parser, '-'))
{
g_value_unset (value);
g_value_init (value, GTK_TYPE_GRADIENT);
return gradient_value_parse (parser, base, value);
}
else
{
GError *error = NULL;
gchar *path;
GdkPixbuf *pixbuf;
GFile *file;
cairo_surface_t *surface;
cairo_pattern_t *pattern;
cairo_t *cr;
cairo_matrix_t matrix;
file = gtk_css_parse_url (parser, base);
if (file == NULL)
return FALSE;
path = g_file_get_path (file);
g_object_unref (file);
pixbuf = gdk_pixbuf_new_from_file (path, &error);
g_free (path);
if (pixbuf == NULL)
{
_gtk_css_parser_take_error (parser, error);
return FALSE;
}
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf));
cr = cairo_create (surface);
gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
cairo_paint (cr);
pattern = cairo_pattern_create_for_surface (surface);
cairo_matrix_init_scale (&matrix,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf));
cairo_pattern_set_matrix (pattern, &matrix);
cairo_surface_destroy (surface);
cairo_destroy (cr);
g_object_unref (pixbuf);
g_value_take_boxed (value, pattern);
}
return TRUE;
}
static gboolean
shadow_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
gboolean have_inset, have_color, have_lengths;
gdouble hoffset, voffset, blur, spread;
GtkSymbolicColor *color;
GtkShadow *shadow;
guint i;
shadow = _gtk_shadow_new ();
do
{
have_inset = have_lengths = have_color = FALSE;
for (i = 0; i < 3; i++)
{
if (!have_inset &&
_gtk_css_parser_try (parser, "inset", TRUE))
{
have_inset = TRUE;
continue;
}
if (!have_lengths &&
_gtk_css_parser_try_double (parser, &hoffset))
{
have_lengths = TRUE;
if (!_gtk_css_parser_try_double (parser, &voffset))
{
_gtk_css_parser_error (parser, "Horizontal and vertical offsets are required");
_gtk_shadow_unref (shadow);
return FALSE;
}
if (!_gtk_css_parser_try_double (parser, &blur))
blur = 0;
if (!_gtk_css_parser_try_double (parser, &spread))
spread = 0;
continue;
}
if (!have_color)
{
have_color = TRUE;
/* XXX: the color is optional and UA-defined if it's missing,
* but it doesn't really make sense for us...
*/
color = _gtk_css_parser_read_symbolic_color (parser);
if (color == NULL)
{
_gtk_shadow_unref (shadow);
return FALSE;
}
}
}
if (!have_color || !have_lengths)
{
_gtk_css_parser_error (parser, "Must specify at least color and offsets");
_gtk_shadow_unref (shadow);
return FALSE;
}
_gtk_shadow_append (shadow,
hoffset, voffset,
blur, spread,
have_inset, color);
gtk_symbolic_color_unref (color);
}
while (_gtk_css_parser_try (parser, ",", TRUE));
g_value_take_boxed (value, shadow);
return TRUE;
}
static void
shadow_value_print (const GValue *value,
GString *string)
{
GtkShadow *shadow;
shadow = g_value_get_boxed (value);
if (shadow == NULL)
g_string_append (string, "none");
else
_gtk_shadow_print (shadow, string);
}
static gboolean
border_image_repeat_value_parse (GtkCssParser *parser,
GFile *file,
GValue *value)
{
GtkCssBorderImageRepeat image_repeat;
GtkCssRepeatStyle styles[2];
gint i;
for (i = 0; i < 2; i++)
{
if (_gtk_css_parser_try (parser, "stretch", TRUE))
styles[i] = GTK_CSS_REPEAT_STYLE_NONE;
else if (_gtk_css_parser_try (parser, "repeat", TRUE))
styles[i] = GTK_CSS_REPEAT_STYLE_REPEAT;
else if (_gtk_css_parser_try (parser, "round", TRUE))
styles[i] = GTK_CSS_REPEAT_STYLE_ROUND;
else if (_gtk_css_parser_try (parser, "space", TRUE))
styles[i] = GTK_CSS_REPEAT_STYLE_SPACE;
else if (i == 0)
{
styles[1] = styles[0] = GTK_CSS_REPEAT_STYLE_NONE;
break;
}
else
styles[i] = styles[0];
}
image_repeat.hrepeat = styles[0];
image_repeat.vrepeat = styles[1];
g_value_set_boxed (value, &image_repeat);
return TRUE;
}
static const gchar *
border_image_repeat_style_to_string (GtkCssRepeatStyle repeat)
{
switch (repeat)
{
case GTK_CSS_REPEAT_STYLE_NONE:
return "stretch";
case GTK_CSS_REPEAT_STYLE_REPEAT:
return "repeat";
case GTK_CSS_REPEAT_STYLE_ROUND:
return "round";
case GTK_CSS_REPEAT_STYLE_SPACE:
return "space";
default:
return NULL;
}
}
static void
border_image_repeat_value_print (const GValue *value,
GString *string)
{
GtkCssBorderImageRepeat *image_repeat;
image_repeat = g_value_get_boxed (value);
g_string_append_printf (string, "%s %s",
border_image_repeat_style_to_string (image_repeat->hrepeat),
border_image_repeat_style_to_string (image_repeat->vrepeat));
}
static gboolean
border_image_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GValue temp = { 0, };
cairo_pattern_t *pattern = NULL;
GtkGradient *gradient = NULL;
GtkBorder slice, *width = NULL, *parsed_slice;
GtkCssBorderImageRepeat repeat, *parsed_repeat;
gboolean retval = FALSE;
GtkBorderImage *image = NULL;
g_value_init (&temp, CAIRO_GOBJECT_TYPE_PATTERN);
if (!pattern_value_parse (parser, base, &temp))
return FALSE;
if (G_VALUE_TYPE (&temp) == GTK_TYPE_GRADIENT)
gradient = g_value_dup_boxed (&temp);
else
pattern = g_value_dup_boxed (&temp);
g_value_unset (&temp);
g_value_init (&temp, GTK_TYPE_BORDER);
if (!border_value_parse (parser, base, &temp))
goto out;
parsed_slice = g_value_get_boxed (&temp);
slice = *parsed_slice;
if (_gtk_css_parser_try (parser, "/", TRUE))
{
g_value_unset (&temp);
g_value_init (&temp, GTK_TYPE_BORDER);
if (!border_value_parse (parser, base, &temp))
goto out;
width = g_value_dup_boxed (&temp);
}
g_value_unset (&temp);
g_value_init (&temp, GTK_TYPE_CSS_BORDER_IMAGE_REPEAT);
if (!border_image_repeat_value_parse (parser, base, &temp))
goto out;
parsed_repeat = g_value_get_boxed (&temp);
repeat = *parsed_repeat;
g_value_unset (&temp);
if (gradient != NULL)
image = _gtk_border_image_new_for_gradient (gradient, &slice, width, &repeat);
else if (pattern != NULL)
image = _gtk_border_image_new (pattern, &slice, width, &repeat);
if (image != NULL)
{
retval = TRUE;
g_value_take_boxed (value, image);
}
out:
if (pattern != NULL)
cairo_pattern_destroy (pattern);
if (gradient != NULL)
gtk_gradient_unref (gradient);
if (width != NULL)
gtk_border_free (width);
return retval;
}
static gboolean
enum_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GEnumClass *enum_class;
GEnumValue *enum_value;
char *str;
str = _gtk_css_parser_try_ident (parser, TRUE);
if (str == NULL)
{
_gtk_css_parser_error (parser, "Expected an identifier");
return FALSE;
}
enum_class = g_type_class_ref (G_VALUE_TYPE (value));
enum_value = g_enum_get_value_by_nick (enum_class, str);
if (enum_value)
g_value_set_enum (value, enum_value->value);
else
_gtk_css_parser_error (parser,
"Unknown value '%s' for enum type '%s'",
str, g_type_name (G_VALUE_TYPE (value)));
g_type_class_unref (enum_class);
g_free (str);
return enum_value != NULL;
}
static void
enum_value_print (const GValue *value,
GString *string)
{
GEnumClass *enum_class;
GEnumValue *enum_value;
enum_class = g_type_class_ref (G_VALUE_TYPE (value));
enum_value = g_enum_get_value (enum_class, g_value_get_enum (value));
g_string_append (string, enum_value->value_nick);
g_type_class_unref (enum_class);
}
static gboolean
flags_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GFlagsClass *flags_class;
GFlagsValue *flag_value;
guint flags = 0;
char *str;
flags_class = g_type_class_ref (G_VALUE_TYPE (value));
do {
str = _gtk_css_parser_try_ident (parser, TRUE);
if (str == NULL)
{
_gtk_css_parser_error (parser, "Expected an identifier");
g_type_class_unref (flags_class);
return FALSE;
}
flag_value = g_flags_get_value_by_nick (flags_class, str);
if (!flag_value)
{
_gtk_css_parser_error (parser,
"Unknown flag value '%s' for type '%s'",
str, g_type_name (G_VALUE_TYPE (value)));
/* XXX Do we want to return FALSE here? We can get
* forward-compatibility for new values this way
*/
g_free (str);
g_type_class_unref (flags_class);
return FALSE;
}
g_free (str);
}
while (_gtk_css_parser_try (parser, ",", FALSE));
g_type_class_unref (flags_class);
g_value_set_enum (value, flags);
return TRUE;
}
static void
flags_value_print (const GValue *value,
GString *string)
{
GFlagsClass *flags_class;
guint i, flags;
flags_class = g_type_class_ref (G_VALUE_TYPE (value));
flags = g_value_get_flags (value);
for (i = 0; i < flags_class->n_values; i++)
{
GFlagsValue *flags_value = &flags_class->values[i];
if (flags & flags_value->value)
{
if (string->len != 0)
g_string_append (string, ", ");
g_string_append (string, flags_value->value_nick);
}
}
g_type_class_unref (flags_class);
}
static gboolean
bindings_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
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));
g_value_take_boxed (value, array);
return TRUE;
}
static void
bindings_value_print (const GValue *value,
GString *string)
{
GPtrArray *array;
guint i;
array = g_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 gboolean
border_corner_radius_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GtkCssBorderCornerRadius corner;
if (!_gtk_css_parser_try_double (parser, &corner.horizontal))
{
_gtk_css_parser_error (parser, "Expected a number");
return FALSE;
}
else if (corner.horizontal < 0)
goto negative;
if (!_gtk_css_parser_try_double (parser, &corner.vertical))
corner.vertical = corner.horizontal;
else if (corner.vertical < 0)
goto negative;
g_value_set_boxed (value, &corner);
return TRUE;
negative:
_gtk_css_parser_error (parser, "Border radius values cannot be negative");
return FALSE;
}
static void
border_corner_radius_value_print (const GValue *value,
GString *string)
{
GtkCssBorderCornerRadius *corner;
corner = g_value_get_boxed (value);
if (corner == NULL)
{
g_string_append (string, "none");
return;
}
string_append_double (string, corner->horizontal);
if (corner->horizontal != corner->vertical)
{
g_string_append_c (string, ' ');
string_append_double (string, corner->vertical);
}
}
static gboolean
border_radius_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GtkCssBorderRadius border;
if (!_gtk_css_parser_try_double (parser, &border.top_left.horizontal))
{
_gtk_css_parser_error (parser, "Expected a number");
return FALSE;
}
else if (border.top_left.horizontal < 0)
goto negative;
if (_gtk_css_parser_try_double (parser, &border.top_right.horizontal))
{
if (border.top_right.horizontal < 0)
goto negative;
if (_gtk_css_parser_try_double (parser, &border.bottom_right.horizontal))
{
if (border.bottom_right.horizontal < 0)
goto negative;
if (!_gtk_css_parser_try_double (parser, &border.bottom_left.horizontal))
border.bottom_left.horizontal = border.top_right.horizontal;
else if (border.bottom_left.horizontal < 0)
goto negative;
}
else
{
border.bottom_right.horizontal = border.top_left.horizontal;
border.bottom_left.horizontal = border.top_right.horizontal;
}
}
else
{
border.top_right.horizontal = border.top_left.horizontal;
border.bottom_right.horizontal = border.top_left.horizontal;
border.bottom_left.horizontal = border.top_left.horizontal;
}
if (_gtk_css_parser_try (parser, "/", TRUE))
{
if (!_gtk_css_parser_try_double (parser, &border.top_left.vertical))
{
_gtk_css_parser_error (parser, "Expected a number");
return FALSE;
}
else if (border.top_left.vertical < 0)
goto negative;
if (_gtk_css_parser_try_double (parser, &border.top_right.vertical))
{
if (border.top_right.vertical < 0)
goto negative;
if (_gtk_css_parser_try_double (parser, &border.bottom_right.vertical))
{
if (border.bottom_right.vertical < 0)
goto negative;
if (!_gtk_css_parser_try_double (parser, &border.bottom_left.vertical))
border.bottom_left.vertical = border.top_right.vertical;
else if (border.bottom_left.vertical < 0)
goto negative;
}
else
{
border.bottom_right.vertical = border.top_left.vertical;
border.bottom_left.vertical = border.top_right.vertical;
}
}
else
{
border.top_right.vertical = border.top_left.vertical;
border.bottom_right.vertical = border.top_left.vertical;
border.bottom_left.vertical = border.top_left.vertical;
}
}
else
{
border.top_left.vertical = border.top_left.horizontal;
border.top_right.vertical = border.top_right.horizontal;
border.bottom_right.vertical = border.bottom_right.horizontal;
border.bottom_left.vertical = border.bottom_left.horizontal;
}
/* border-radius is an int property for backwards-compat reasons */
g_value_unset (value);
g_value_init (value, GTK_TYPE_CSS_BORDER_RADIUS);
g_value_set_boxed (value, &border);
return TRUE;
negative:
_gtk_css_parser_error (parser, "Border radius values cannot be negative");
return FALSE;
}
static void
border_radius_value_print (const GValue *value,
GString *string)
{
GtkCssBorderRadius *border;
border = g_value_get_boxed (value);
if (border == NULL)
{
g_string_append (string, "none");
return;
}
string_append_double (string, border->top_left.horizontal);
if (border->top_left.horizontal != border->top_right.horizontal ||
border->top_left.horizontal != border->bottom_right.horizontal ||
border->top_left.horizontal != border->bottom_left.horizontal)
{
g_string_append_c (string, ' ');
string_append_double (string, border->top_right.horizontal);
if (border->top_left.horizontal != border->bottom_right.horizontal ||
border->top_right.horizontal != border->bottom_left.horizontal)
{
g_string_append_c (string, ' ');
string_append_double (string, border->bottom_right.horizontal);
if (border->top_right.horizontal != border->bottom_left.horizontal)
{
g_string_append_c (string, ' ');
string_append_double (string, border->bottom_left.horizontal);
}
}
}
if (border->top_left.horizontal != border->top_left.vertical ||
border->top_right.horizontal != border->top_right.vertical ||
border->bottom_right.horizontal != border->bottom_right.vertical ||
border->bottom_left.horizontal != border->bottom_left.vertical)
{
g_string_append (string, " / ");
string_append_double (string, border->top_left.vertical);
if (border->top_left.vertical != border->top_right.vertical ||
border->top_left.vertical != border->bottom_right.vertical ||
border->top_left.vertical != border->bottom_left.vertical)
{
g_string_append_c (string, ' ');
string_append_double (string, border->top_right.vertical);
if (border->top_left.vertical != border->bottom_right.vertical ||
border->top_right.vertical != border->bottom_left.vertical)
{
g_string_append_c (string, ' ');
string_append_double (string, border->bottom_right.vertical);
if (border->top_right.vertical != border->bottom_left.vertical)
{
g_string_append_c (string, ' ');
string_append_double (string, border->bottom_left.vertical);
}
}
}
}
}
static gboolean
border_color_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
if (_gtk_css_parser_try (parser, "transparent", TRUE))
{
GdkRGBA transparent = { 0, 0, 0, 0 };
g_value_set_boxed (value, &transparent);
return TRUE;
}
return rgba_value_parse (parser, base, value);
}
static gboolean
border_color_shorthand_value_parse (GtkCssParser *parser,
GFile *base,
GValue *value)
{
GtkSymbolicColor *symbolic;
GPtrArray *array;
array = g_ptr_array_new_with_free_func ((GDestroyNotify) gtk_symbolic_color_unref);
do
{
if (_gtk_css_parser_try (parser, "transparent", TRUE))
{
GdkRGBA transparent = { 0, 0, 0, 0 };
symbolic = gtk_symbolic_color_new_literal (&transparent);
}
else
{
symbolic = _gtk_css_parser_read_symbolic_color (parser);
if (symbolic == NULL)
return FALSE;
}
g_ptr_array_add (array, symbolic);
}
while (array->len < 4 &&
!_gtk_css_parser_is_eof (parser) &&
!_gtk_css_parser_begins_with (parser, ';') &&
!_gtk_css_parser_begins_with (parser, '}'));
switch (array->len)
{
default:
g_assert_not_reached ();
break;
case 1:
g_ptr_array_add (array, gtk_symbolic_color_ref (g_ptr_array_index (array, 0)));
/* fall through */
case 2:
g_ptr_array_add (array, gtk_symbolic_color_ref (g_ptr_array_index (array, 0)));
/* fall through */
case 3:
g_ptr_array_add (array, gtk_symbolic_color_ref (g_ptr_array_index (array, 1)));
/* fall through */
case 4:
break;
}
g_value_unset (value);
g_value_init (value, G_TYPE_PTR_ARRAY);
g_value_set_boxed (value, array);
return TRUE;
}
/*** PACKING ***/
static GParameter *
unpack_border (const GValue *value,
guint *n_params,
const char *top,
const char *left,
const char *bottom,
const char *right)
{
GParameter *parameter = g_new0 (GParameter, 4);
GtkBorder *border = g_value_get_boxed (value);
parameter[0].name = top;
g_value_init (&parameter[0].value, G_TYPE_INT);
g_value_set_int (&parameter[0].value, border->top);
parameter[1].name = left;
g_value_init (&parameter[1].value, G_TYPE_INT);
g_value_set_int (&parameter[1].value, border->left);
parameter[2].name = bottom;
g_value_init (&parameter[2].value, G_TYPE_INT);
g_value_set_int (&parameter[2].value, border->bottom);
parameter[3].name = right;
g_value_init (&parameter[3].value, G_TYPE_INT);
g_value_set_int (&parameter[3].value, border->right);
*n_params = 4;
return parameter;
}
static void
pack_border (GValue *value,
GtkStyleProperties *props,
GtkStateFlags state,
const char *top,
const char *left,
const char *bottom,
const char *right)
{
GtkBorder border;
int t, l, b, r;
gtk_style_properties_get (props,
state,
top, &t,
left, &l,
bottom, &b,
right, &r,
NULL);
border.top = t;
border.left = l;
border.bottom = b;
border.right = r;
g_value_set_boxed (value, &border);
}
static GParameter *
unpack_border_width (const GValue *value,
guint *n_params)
{
return unpack_border (value, n_params,
"border-top-width", "border-left-width",
"border-bottom-width", "border-right-width");
}
static void
pack_border_width (GValue *value,
GtkStyleProperties *props,
GtkStateFlags state)
{
pack_border (value, props, state,
"border-top-width", "border-left-width",
"border-bottom-width", "border-right-width");
}
static GParameter *
unpack_padding (const GValue *value,
guint *n_params)
{
return unpack_border (value, n_params,
"padding-top", "padding-left",
"padding-bottom", "padding-right");
}
static void
pack_padding (GValue *value,
GtkStyleProperties *props,
GtkStateFlags state)
{
pack_border (value, props, state,
"padding-top", "padding-left",
"padding-bottom", "padding-right");
}
static GParameter *
unpack_margin (const GValue *value,
guint *n_params)
{
return unpack_border (value, n_params,
"margin-top", "margin-left",
"margin-bottom", "margin-right");
}
static void
pack_margin (GValue *value,
GtkStyleProperties *props,
GtkStateFlags state)
{
pack_border (value, props, state,
"margin-top", "margin-left",
"margin-bottom", "margin-right");
}
static GParameter *
unpack_border_radius (const GValue *value,
guint *n_params)
{
GParameter *parameter = g_new0 (GParameter, 4);
GtkCssBorderRadius *border;
if (G_VALUE_HOLDS_BOXED (value))
border = g_value_get_boxed (value);
else
border = NULL;
parameter[0].name = "border-top-left-radius";
g_value_init (&parameter[0].value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
parameter[1].name = "border-top-right-radius";
g_value_init (&parameter[1].value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
parameter[2].name = "border-bottom-right-radius";
g_value_init (&parameter[2].value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
parameter[3].name = "border-bottom-left-radius";
g_value_init (&parameter[3].value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
if (border)
{
g_value_set_boxed (&parameter[0].value, &border->top_left);
g_value_set_boxed (&parameter[1].value, &border->top_right);
g_value_set_boxed (&parameter[2].value, &border->bottom_right);
g_value_set_boxed (&parameter[3].value, &border->bottom_left);
}
*n_params = 4;
return parameter;
}
static void
pack_border_radius (GValue *value,
GtkStyleProperties *props,
GtkStateFlags state)
{
GtkCssBorderCornerRadius *top_left;
/* NB: We are an int property, so we have to resolve to an int here.
* So we just resolve to an int. We pick one and stick to it.
* Lesson learned: Don't query border-radius shorthand, query the
* real properties instead. */
gtk_style_properties_get (props,
state,
"border-top-left-radius", &top_left,
NULL);
if (top_left)
g_value_set_int (value, top_left->horizontal);
g_free (top_left);
}
static GParameter *
unpack_font_description (const GValue *value,
guint *n_params)
{
GParameter *parameter = g_new0 (GParameter, 5);
PangoFontDescription *description;
PangoFontMask mask;
guint n;
/* 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);
n = 0;
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);
parameter[n].name = "font-family";
g_value_init (&parameter[n].value, G_TYPE_STRV);
g_value_take_boxed (&parameter[n].value,
g_ptr_array_free (strv, FALSE));
n++;
}
if (mask & PANGO_FONT_MASK_STYLE)
{
parameter[n].name = "font-style";
g_value_init (&parameter[n].value, PANGO_TYPE_STYLE);
g_value_set_enum (&parameter[n].value,
pango_font_description_get_style (description));
n++;
}
if (mask & PANGO_FONT_MASK_VARIANT)
{
parameter[n].name = "font-variant";
g_value_init (&parameter[n].value, PANGO_TYPE_VARIANT);
g_value_set_enum (&parameter[n].value,
pango_font_description_get_variant (description));
n++;
}
if (mask & PANGO_FONT_MASK_WEIGHT)
{
parameter[n].name = "font-weight";
g_value_init (&parameter[n].value, PANGO_TYPE_WEIGHT);
g_value_set_enum (&parameter[n].value,
pango_font_description_get_weight (description));
n++;
}
if (mask & PANGO_FONT_MASK_SIZE)
{
parameter[n].name = "font-size";
g_value_init (&parameter[n].value, G_TYPE_DOUBLE);
g_value_set_double (&parameter[n].value,
(double) pango_font_description_get_size (description) / PANGO_SCALE);
n++;
}
*n_params = n;
return parameter;
}
static void
pack_font_description (GValue *value,
GtkStyleProperties *props,
GtkStateFlags state)
{
PangoFontDescription *description;
char **families;
PangoStyle style;
PangoVariant variant;
PangoWeight weight;
double size;
gtk_style_properties_get (props,
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_free (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 (&parameter[0].value, type);
parameter[1].name = "border-right-color";
g_value_init (&parameter[1].value, type);
parameter[2].name = "border-bottom-color";
g_value_init (&parameter[2].value, type);
parameter[3].name = "border-left-color";
g_value_init (&parameter[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 (&parameter[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 (&parameter[0].value, p);
g_value_set_boxed (&parameter[1].value, p);
g_value_set_boxed (&parameter[2].value, p);
g_value_set_boxed (&parameter[3].value, p);
}
*n_params = 4;
return parameter;
}
static void
pack_border_color (GValue *value,
GtkStyleProperties *props,
GtkStateFlags state)
{
/* 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);
}
/*** default values ***/
static void
border_image_width_default_value (GtkStyleProperties *props,
GtkStateFlags state,
GValue *value)
{
}
static void
border_color_default_value (GtkStyleProperties *props,
GtkStateFlags state,
GValue *value)
{
g_value_unset (value);
gtk_style_properties_get_property (props, "color", state, value);
}
/*** API ***/
static void
css_string_funcs_init (void)
{
if (G_LIKELY (parse_funcs != NULL))
return;
parse_funcs = g_hash_table_new (NULL, NULL);
print_funcs = g_hash_table_new (NULL, NULL);
register_conversion_function (GDK_TYPE_RGBA,
rgba_value_parse,
rgba_value_print);
register_conversion_function (GDK_TYPE_COLOR,
color_value_parse,
color_value_print);
register_conversion_function (GTK_TYPE_SYMBOLIC_COLOR,
symbolic_color_value_parse,
symbolic_color_value_print);
register_conversion_function (PANGO_TYPE_FONT_DESCRIPTION,
font_description_value_parse,
font_description_value_print);
register_conversion_function (G_TYPE_BOOLEAN,
boolean_value_parse,
boolean_value_print);
register_conversion_function (G_TYPE_INT,
int_value_parse,
int_value_print);
register_conversion_function (G_TYPE_UINT,
uint_value_parse,
uint_value_print);
register_conversion_function (G_TYPE_DOUBLE,
double_value_parse,
double_value_print);
register_conversion_function (G_TYPE_FLOAT,
float_value_parse,
float_value_print);
register_conversion_function (G_TYPE_STRING,
string_value_parse,
string_value_print);
register_conversion_function (GTK_TYPE_THEMING_ENGINE,
theming_engine_value_parse,
theming_engine_value_print);
register_conversion_function (GTK_TYPE_ANIMATION_DESCRIPTION,
animation_description_value_parse,
animation_description_value_print);
register_conversion_function (GTK_TYPE_BORDER,
border_value_parse,
border_value_print);
register_conversion_function (GTK_TYPE_GRADIENT,
gradient_value_parse,
gradient_value_print);
register_conversion_function (CAIRO_GOBJECT_TYPE_PATTERN,
pattern_value_parse,
NULL);
register_conversion_function (GTK_TYPE_BORDER_IMAGE,
border_image_value_parse,
NULL);
register_conversion_function (GTK_TYPE_CSS_BORDER_IMAGE_REPEAT,
border_image_repeat_value_parse,
border_image_repeat_value_print);
register_conversion_function (GTK_TYPE_SHADOW,
shadow_value_parse,
shadow_value_print);
register_conversion_function (G_TYPE_ENUM,
enum_value_parse,
enum_value_print);
register_conversion_function (G_TYPE_FLAGS,
flags_value_parse,
flags_value_print);
}
gboolean
_gtk_style_property_parse_value (const GtkStyleProperty *property,
GValue *value,
GtkCssParser *parser,
GFile *base)
{
GtkStyleParseFunc func;
g_return_val_if_fail (value != NULL, FALSE);
g_return_val_if_fail (parser != NULL, FALSE);
css_string_funcs_init ();
if (property)
{
if (_gtk_css_parser_try (parser, "none", TRUE))
{
/* Insert the default value, so it has an opportunity
* to override other style providers when merged
*/
g_param_value_set_default (property->pspec, value);
return TRUE;
}
else if (property->property_parse_func)
{
GError *error = NULL;
char *value_str;
gboolean success;
value_str = _gtk_css_parser_read_value (parser);
if (value_str == NULL)
return FALSE;
success = (*property->property_parse_func) (value_str, value, &error);
g_free (value_str);
return success;
}
func = property->parse_func;
}
else
func = NULL;
if (func == NULL)
func = g_hash_table_lookup (parse_funcs,
GSIZE_TO_POINTER (G_VALUE_TYPE (value)));
if (func == NULL)
func = g_hash_table_lookup (parse_funcs,
GSIZE_TO_POINTER (g_type_fundamental (G_VALUE_TYPE (value))));
if (func == NULL)
{
_gtk_css_parser_error (parser,
"Cannot convert to type '%s'",
g_type_name (G_VALUE_TYPE (value)));
return FALSE;
}
return (*func) (parser, base, value);
}
void
_gtk_style_property_print_value (const GtkStyleProperty *property,
const GValue *value,
GString *string)
{
GtkStylePrintFunc func;
css_string_funcs_init ();
if (property)
func = property->print_func;
else
func = NULL;
if (func == NULL)
func = g_hash_table_lookup (print_funcs,
GSIZE_TO_POINTER (G_VALUE_TYPE (value)));
if (func == NULL)
func = g_hash_table_lookup (print_funcs,
GSIZE_TO_POINTER (g_type_fundamental (G_VALUE_TYPE (value))));
if (func == NULL)
{
char *s = g_strdup_value_contents (value);
g_string_append (string, s);
g_free (s);
return;
}
func (value, string);
}
void
_gtk_style_property_default_value (const GtkStyleProperty *property,
GtkStyleProperties *properties,
GtkStateFlags state,
GValue *value)
{
if (property->default_value_func)
property->default_value_func (properties, state, value);
else if (property->pspec->value_type == GTK_TYPE_THEMING_ENGINE)
g_value_set_object (value, gtk_theming_engine_load (NULL));
else if (property->pspec->value_type == PANGO_TYPE_FONT_DESCRIPTION)
g_value_take_boxed (value, pango_font_description_from_string ("Sans 10"));
else if (property->pspec->value_type == GDK_TYPE_RGBA)
{
GdkRGBA color;
gdk_rgba_parse (&color, "pink");
g_value_set_boxed (value, &color);
}
else if (property->pspec->value_type == GTK_TYPE_BORDER)
{
g_value_take_boxed (value, gtk_border_new ());
}
else
g_param_value_set_default (property->pspec, value);
}
gboolean
_gtk_style_property_is_inherit (const GtkStyleProperty *property)
{
g_return_val_if_fail (property != NULL, FALSE);
return property->flags & GTK_STYLE_PROPERTY_INHERIT ? TRUE : FALSE;
}
static gboolean
resolve_color (GtkStyleProperties *props,
GValue *value)
{
GdkRGBA color;
/* Resolve symbolic color to GdkRGBA */
if (!gtk_symbolic_color_resolve (g_value_get_boxed (value), props, &color))
return FALSE;
/* Store it back, this is where GdkRGBA caching happens */
g_value_unset (value);
g_value_init (value, GDK_TYPE_RGBA);
g_value_set_boxed (value, &color);
return TRUE;
}
static gboolean
resolve_color_rgb (GtkStyleProperties *props,
GValue *value)
{
GdkColor color = { 0 };
GdkRGBA rgba;
if (!gtk_symbolic_color_resolve (g_value_get_boxed (value), props, &rgba))
return FALSE;
color.red = rgba.red * 65535. + 0.5;
color.green = rgba.green * 65535. + 0.5;
color.blue = rgba.blue * 65535. + 0.5;
g_value_unset (value);
g_value_init (value, GDK_TYPE_COLOR);
g_value_set_boxed (value, &color);
return TRUE;
}
static gboolean
resolve_gradient (GtkStyleProperties *props,
GValue *value)
{
cairo_pattern_t *gradient;
if (!gtk_gradient_resolve (g_value_get_boxed (value), props, &gradient))
return FALSE;
/* Store it back, this is where cairo_pattern_t caching happens */
g_value_unset (value);
g_value_init (value, CAIRO_GOBJECT_TYPE_PATTERN);
g_value_take_boxed (value, gradient);
return TRUE;
}
static gboolean
resolve_shadow (GtkStyleProperties *props,
GValue *value)
{
GtkShadow *resolved, *base;
base = g_value_get_boxed (value);
if (base == NULL)
return TRUE;
if (_gtk_shadow_get_resolved (base))
return TRUE;
resolved = _gtk_shadow_resolve (base, props);
if (resolved == NULL)
return FALSE;
g_value_take_boxed (value, resolved);
return TRUE;
}
void
_gtk_style_property_resolve (const GtkStyleProperty *property,
GtkStyleProperties *props,
GtkStateFlags state,
GValue *val)
{
if (G_VALUE_TYPE (val) == GTK_TYPE_SYMBOLIC_COLOR)
{
if (property->pspec->value_type == GDK_TYPE_RGBA)
{
if (resolve_color (props, val))
return;
}
else if (property->pspec->value_type == GDK_TYPE_COLOR)
{
if (resolve_color_rgb (props, val))
return;
}
g_value_unset (val);
g_value_init (val, property->pspec->value_type);
_gtk_style_property_default_value (property, props, state, val);
}
else if (G_VALUE_TYPE (val) == GDK_TYPE_RGBA)
{
if (g_value_get_boxed (val) == NULL)
_gtk_style_property_default_value (property, props, state, val);
}
else if (G_VALUE_TYPE (val) == GTK_TYPE_GRADIENT)
{
g_return_if_fail (property->pspec->value_type == CAIRO_GOBJECT_TYPE_PATTERN);
if (!resolve_gradient (props, val))
{
g_value_unset (val);
g_value_init (val, CAIRO_GOBJECT_TYPE_PATTERN);
_gtk_style_property_default_value (property, props, state, val);
}
}
else if (G_VALUE_TYPE (val) == GTK_TYPE_SHADOW)
{
if (!resolve_shadow (props, val))
_gtk_style_property_default_value (property, props, state, val);
}
}
gboolean
_gtk_style_property_is_shorthand (const GtkStyleProperty *property)
{
g_return_val_if_fail (property != NULL, FALSE);
return property->pack_func != NULL;
}
GParameter *
_gtk_style_property_unpack (const GtkStyleProperty *property,
const GValue *value,
guint *n_params)
{
g_return_val_if_fail (property != NULL, NULL);
g_return_val_if_fail (property->unpack_func != NULL, NULL);
g_return_val_if_fail (value != NULL, NULL);
g_return_val_if_fail (n_params != NULL, NULL);
return property->unpack_func (value, n_params);
}
void
_gtk_style_property_pack (const GtkStyleProperty *property,
GtkStyleProperties *props,
GtkStateFlags state,
GValue *value)
{
g_return_if_fail (property != NULL);
g_return_if_fail (property->pack_func != NULL);
g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
g_return_if_fail (G_IS_VALUE (value));
property->pack_func (value, props, state);
}
static void
gtk_style_property_init (void)
{
if (G_LIKELY (properties))
return;
/* stuff is never freed, so no need for free functions */
properties = g_hash_table_new (g_str_hash, g_str_equal);
/* note that gtk_style_properties_register_property() calls this function,
* so make sure we're sanely inited to avoid infloops */
_gtk_style_property_register (g_param_spec_boxed ("color",
"Foreground color",
"Foreground color",
GDK_TYPE_RGBA, 0),
GTK_STYLE_PROPERTY_INHERIT,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL);
gtk_style_properties_register_property (NULL,
g_param_spec_boxed ("background-color",
"Background color",
"Background color",
GDK_TYPE_RGBA, 0));
_gtk_style_property_register (g_param_spec_boxed ("font-family",
"Font family",
"Font family",
G_TYPE_STRV, 0),
GTK_STYLE_PROPERTY_INHERIT,
NULL,
NULL,
NULL,
font_family_parse,
font_family_value_print,
NULL);
_gtk_style_property_register (g_param_spec_enum ("font-style",
"Font style",
"Font style",
PANGO_TYPE_STYLE,
PANGO_STYLE_NORMAL, 0),
GTK_STYLE_PROPERTY_INHERIT,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL);
_gtk_style_property_register (g_param_spec_enum ("font-variant",
"Font variant",
"Font variant",
PANGO_TYPE_VARIANT,
PANGO_VARIANT_NORMAL, 0),
GTK_STYLE_PROPERTY_INHERIT,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL);
/* xxx: need to parse this properly, ie parse the numbers */
_gtk_style_property_register (g_param_spec_enum ("font-weight",
"Font weight",
"Font weight",
PANGO_TYPE_WEIGHT,
PANGO_WEIGHT_NORMAL, 0),
GTK_STYLE_PROPERTY_INHERIT,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL);
_gtk_style_property_register (g_param_spec_double ("font-size",
"Font size",
"Font size",
0, G_MAXDOUBLE, 0, 0),
GTK_STYLE_PROPERTY_INHERIT,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL);
_gtk_style_property_register (g_param_spec_boxed ("font",
"Font Description",
"Font Description",
PANGO_TYPE_FONT_DESCRIPTION, 0),
GTK_STYLE_PROPERTY_INHERIT,
NULL,
unpack_font_description,
pack_font_description,
font_description_value_parse,
font_description_value_print,
NULL);
_gtk_style_property_register (g_param_spec_boxed ("text-shadow",
"Text shadow",
"Text shadow",
GTK_TYPE_SHADOW, 0),
GTK_STYLE_PROPERTY_INHERIT,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL);
_gtk_style_property_register (g_param_spec_boxed ("icon-shadow",
"Icon shadow",
"Icon shadow",
GTK_TYPE_SHADOW, 0),
GTK_STYLE_PROPERTY_INHERIT,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL);
gtk_style_properties_register_property (NULL,
g_param_spec_boxed ("box-shadow",
"Box shadow",
"Box shadow",
GTK_TYPE_SHADOW, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_int ("margin-top",
"margin top",
"Margin at top",
0, G_MAXINT, 0, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_int ("margin-left",
"margin left",
"Margin at left",
0, G_MAXINT, 0, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_int ("margin-bottom",
"margin bottom",
"Margin at bottom",
0, G_MAXINT, 0, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_int ("margin-right",
"margin right",
"Margin at right",
0, G_MAXINT, 0, 0));
_gtk_style_property_register (g_param_spec_boxed ("margin",
"Margin",
"Margin",
GTK_TYPE_BORDER, 0),
0,
NULL,
unpack_margin,
pack_margin,
NULL,
NULL,
NULL);
gtk_style_properties_register_property (NULL,
g_param_spec_int ("padding-top",
"padding top",
"Padding at top",
0, G_MAXINT, 0, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_int ("padding-left",
"padding left",
"Padding at left",
0, G_MAXINT, 0, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_int ("padding-bottom",
"padding bottom",
"Padding at bottom",
0, G_MAXINT, 0, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_int ("padding-right",
"padding right",
"Padding at right",
0, G_MAXINT, 0, 0));
_gtk_style_property_register (g_param_spec_boxed ("padding",
"Padding",
"Padding",
GTK_TYPE_BORDER, 0),
0,
NULL,
unpack_padding,
pack_padding,
NULL,
NULL,
NULL);
gtk_style_properties_register_property (NULL,
g_param_spec_int ("border-top-width",
"border top width",
"Border width at top",
0, G_MAXINT, 0, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_int ("border-left-width",
"border left width",
"Border width at left",
0, G_MAXINT, 0, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_int ("border-bottom-width",
"border bottom width",
"Border width at bottom",
0, G_MAXINT, 0, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_int ("border-right-width",
"border right width",
"Border width at right",
0, G_MAXINT, 0, 0));
_gtk_style_property_register (g_param_spec_boxed ("border-width",
"Border width",
"Border width, in pixels",
GTK_TYPE_BORDER, 0),
0,
NULL,
unpack_border_width,
pack_border_width,
NULL,
NULL,
NULL);
_gtk_style_property_register (g_param_spec_boxed ("border-top-left-radius",
"Border top left radius",
"Border radius of top left corner, in pixels",
GTK_TYPE_CSS_BORDER_CORNER_RADIUS, 0),
0,
NULL,
NULL,
NULL,
border_corner_radius_value_parse,
border_corner_radius_value_print,
NULL);
_gtk_style_property_register (g_param_spec_boxed ("border-top-right-radius",
"Border top right radius",
"Border radius of top right corner, in pixels",
GTK_TYPE_CSS_BORDER_CORNER_RADIUS, 0),
0,
NULL,
NULL,
NULL,
border_corner_radius_value_parse,
border_corner_radius_value_print,
NULL);
_gtk_style_property_register (g_param_spec_boxed ("border-bottom-right-radius",
"Border bottom right radius",
"Border radius of bottom right corner, in pixels",
GTK_TYPE_CSS_BORDER_CORNER_RADIUS, 0),
0,
NULL,
NULL,
NULL,
border_corner_radius_value_parse,
border_corner_radius_value_print,
NULL);
_gtk_style_property_register (g_param_spec_boxed ("border-bottom-left-radius",
"Border bottom left radius",
"Border radius of bottom left corner, in pixels",
GTK_TYPE_CSS_BORDER_CORNER_RADIUS, 0),
0,
NULL,
NULL,
NULL,
border_corner_radius_value_parse,
border_corner_radius_value_print,
NULL);
_gtk_style_property_register (g_param_spec_int ("border-radius",
"Border radius",
"Border radius, in pixels",
0, G_MAXINT, 0, 0),
0,
NULL,
unpack_border_radius,
pack_border_radius,
border_radius_value_parse,
border_radius_value_print,
NULL);
gtk_style_properties_register_property (NULL,
g_param_spec_enum ("border-style",
"Border style",
"Border style",
GTK_TYPE_BORDER_STYLE,
GTK_BORDER_STYLE_NONE, 0));
_gtk_style_property_register (g_param_spec_boxed ("border-top-color",
"Border top color",
"Border top color",
GDK_TYPE_RGBA, 0),
0,
NULL,
NULL,
NULL,
border_color_value_parse,
NULL,
border_color_default_value);
_gtk_style_property_register (g_param_spec_boxed ("border-right-color",
"Border right color",
"Border right color",
GDK_TYPE_RGBA, 0),
0,
NULL,
NULL,
NULL,
border_color_value_parse,
NULL,
border_color_default_value);
_gtk_style_property_register (g_param_spec_boxed ("border-bottom-color",
"Border bottom color",
"Border bottom color",
GDK_TYPE_RGBA, 0),
0,
NULL,
NULL,
NULL,
border_color_value_parse,
NULL,
border_color_default_value);
_gtk_style_property_register (g_param_spec_boxed ("border-left-color",
"Border left color",
"Border left color",
GDK_TYPE_RGBA, 0),
0,
NULL,
NULL,
NULL,
border_color_value_parse,
NULL,
border_color_default_value);
_gtk_style_property_register (g_param_spec_boxed ("border-color",
"Border color",
"Border color",
GDK_TYPE_RGBA, 0),
0,
NULL,
unpack_border_color,
pack_border_color,
border_color_shorthand_value_parse,
NULL,
NULL);
gtk_style_properties_register_property (NULL,
g_param_spec_boxed ("background-image",
"Background Image",
"Background Image",
CAIRO_GOBJECT_TYPE_PATTERN, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_boxed ("border-image-source",
"Border image source",
"Border image source",
CAIRO_GOBJECT_TYPE_PATTERN, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_boxed ("border-image-repeat",
"Border image repeat",
"Border image repeat",
GTK_TYPE_CSS_BORDER_IMAGE_REPEAT, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_boxed ("border-image-slice",
"Border image slice",
"Border image slice",
GTK_TYPE_BORDER, 0));
_gtk_style_property_register (g_param_spec_boxed ("border-image-width",
"Border image width",
"Border image width",
GTK_TYPE_BORDER, 0),
0,
NULL,
NULL,
NULL,
NULL,
NULL,
border_image_width_default_value);
_gtk_style_property_register (g_param_spec_boxed ("border-image",
"Border Image",
"Border Image",
GTK_TYPE_BORDER_IMAGE, 0),
0,
NULL,
_gtk_border_image_unpack,
_gtk_border_image_pack,
NULL,
NULL,
NULL);
gtk_style_properties_register_property (NULL,
g_param_spec_object ("engine",
"Theming Engine",
"Theming Engine",
GTK_TYPE_THEMING_ENGINE, 0));
gtk_style_properties_register_property (NULL,
g_param_spec_boxed ("transition",
"Transition animation description",
"Transition animation description",
GTK_TYPE_ANIMATION_DESCRIPTION, 0));
/* Private property holding the binding sets */
_gtk_style_property_register (g_param_spec_boxed ("gtk-key-bindings",
"Key bindings",
"Key bindings",
G_TYPE_PTR_ARRAY, 0),
0,
NULL,
NULL,
NULL,
bindings_value_parse,
bindings_value_print,
NULL);
}
const GtkStyleProperty *
_gtk_style_property_lookup (const char *name)
{
gtk_style_property_init ();
return g_hash_table_lookup (properties, name);
}
void
_gtk_style_property_register (GParamSpec *pspec,
GtkStylePropertyFlags flags,
GtkStylePropertyParser property_parse_func,
GtkStyleUnpackFunc unpack_func,
GtkStylePackFunc pack_func,
GtkStyleParseFunc parse_func,
GtkStylePrintFunc print_func,
GtkStyleDefaultValueFunc default_value_func)
{
const GtkStyleProperty *existing;
GtkStyleProperty *node;
g_return_if_fail ((pack_func == NULL) == (unpack_func == NULL));
gtk_style_property_init ();
existing = _gtk_style_property_lookup (pspec->name);
if (existing != NULL)
{
g_warning ("Property \"%s\" was already registered with type %s",
pspec->name, g_type_name (existing->pspec->value_type));
return;
}
node = g_slice_new0 (GtkStyleProperty);
node->flags = flags;
node->pspec = pspec;
node->property_parse_func = property_parse_func;
node->pack_func = pack_func;
node->unpack_func = unpack_func;
node->parse_func = parse_func;
node->print_func = print_func;
node->default_value_func = default_value_func;
g_hash_table_insert (properties, pspec->name, node);
}
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