/* GTK - The GIMP Toolkit * Copyright (C) 2010 Carlos Garnacho * * 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 #include #include #include #include #include "gtkcssprovider.h" #include "gtkcssparserprivate.h" /* the actual parsers we have */ #include "gtkanimationdescription.h" #include "gtkbindings.h" #include "gtk9slice.h" #include "gtkgradient.h" #include "gtkshadowprivate.h" #include "gtkthemingengine.h" #include "gtktypebuiltins.h" typedef gboolean (* ParseFunc) (GtkCssParser *parser, GFile *base, GValue *value); typedef char * (* ToStringFunc) (const GValue *value); static GHashTable *parse_funcs = NULL; static GHashTable *to_string_funcs = NULL; static GHashTable *properties = NULL; static void register_conversion_function (GType type, ParseFunc parse, ToStringFunc to_string) { if (parse) g_hash_table_insert (parse_funcs, GSIZE_TO_POINTER (type), parse); if (to_string) g_hash_table_insert (to_string_funcs, GSIZE_TO_POINTER (type), to_string); } /*** 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); } else { g_value_unset (value); g_value_init (value, GTK_TYPE_SYMBOLIC_COLOR); g_value_take_boxed (value, symbolic); } return TRUE; } static char * rgba_value_to_string (const GValue *value) { const GdkRGBA *rgba = g_value_get_boxed (value); if (rgba == NULL) return g_strdup ("none"); return gdk_rgba_to_string (rgba); } 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 char * color_value_to_string (const GValue *value) { const GdkColor *color = g_value_get_boxed (value); if (color == NULL) return g_strdup ("none"); return gdk_color_to_string (color); } 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 char * symbolic_color_value_to_string (const GValue *value) { GtkSymbolicColor *symbolic = g_value_get_boxed (value); if (symbolic == NULL) return g_strdup ("none"); return gtk_symbolic_color_to_string (symbolic); } 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 char * font_description_value_to_string (const GValue *value) { const PangoFontDescription *desc = g_value_get_boxed (value); if (desc == NULL) return g_strdup ("none"); return pango_font_description_to_string (desc); } 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 char * boolean_value_to_string (const GValue *value) { if (g_value_get_boolean (value)) return g_strdup ("true"); else return g_strdup ("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 char * int_value_to_string (const GValue *value) { return g_strdup_printf ("%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 char * uint_value_to_string (const GValue *value) { return g_strdup_printf ("%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 char * double_value_to_string (const GValue *value) { char buf[G_ASCII_DTOSTR_BUF_SIZE]; g_ascii_dtostr (buf, sizeof (buf), g_value_get_double (value)); return g_strdup (buf); } 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 char * float_value_to_string (const GValue *value) { char buf[G_ASCII_DTOSTR_BUF_SIZE]; g_ascii_dtostr (buf, sizeof (buf), g_value_get_float (value)); return g_strdup (buf); } 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 char * string_value_to_string (const GValue *value) { const char *string; gsize len; GString *str; string = g_value_get_string (value); str = g_string_new ("\""); 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, '"'); return g_string_free (str, FALSE); } 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 char * theming_engine_value_to_string (const GValue *value) { GtkThemingEngine *engine; char *name; engine = g_value_get_object (value); if (engine == NULL) return g_strdup ("none"); /* XXX: gtk_theming_engine_get_name()? */ g_object_get (engine, "name", &name, NULL); return 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 char * animation_description_value_to_string (const GValue *value) { GtkAnimationDescription *desc = g_value_get_boxed (value); if (desc == NULL) return g_strdup ("none"); return _gtk_animation_description_to_string (desc); } 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 char * border_value_to_string (const GValue *value) { const GtkBorder *border = g_value_get_boxed (value); if (border == NULL) return g_strdup ("none"); else if (border->left != border->right) return g_strdup_printf ("%d %d %d %d", border->top, border->right, border->bottom, border->left); else if (border->top != border->bottom) return g_strdup_printf ("%d %d %d", border->top, border->right, border->bottom); else if (border->top != border->left) return g_strdup_printf ("%d %d", border->top, border->right); else return g_strdup_printf ("%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_set_boxed (value, gradient); return TRUE; } static char * gradient_value_to_string (const GValue *value) { GtkGradient *gradient = g_value_get_boxed (value); if (gradient == NULL) return g_strdup ("none"); return gtk_gradient_to_string (gradient); } 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 inset; gdouble hoffset, voffset, blur, spread; GtkSymbolicColor *color; GtkShadow *shadow; shadow = _gtk_shadow_new (); do { inset = _gtk_css_parser_try (parser, "inset", TRUE); if (!_gtk_css_parser_try_double (parser, &hoffset) || !_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; /* 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; } _gtk_shadow_append (shadow, hoffset, voffset, blur, spread, inset, color); gtk_symbolic_color_unref (color); } while (_gtk_css_parser_try (parser, ",", TRUE)); g_value_take_boxed (value, shadow); return TRUE; } static gchar * shadow_value_to_string (const GValue *value) { GtkShadow *shadow; shadow = g_value_get_boxed (value); if (shadow == NULL) return g_strdup ("none"); return _gtk_shadow_to_string (shadow); } static gboolean slice_value_parse (GtkCssParser *parser, GFile *base, GValue *value) { gdouble distance_top, distance_bottom; gdouble distance_left, distance_right; GtkSliceSideModifier mods[2]; GdkPixbuf *pixbuf; Gtk9Slice *slice; GFile *file; GError *error = NULL; gint i; char *path; /* Parse image url */ file = gtk_css_parse_url (parser, base); if (!file) return FALSE; if (!_gtk_css_parser_try_double (parser, &distance_top) || !_gtk_css_parser_try_double (parser, &distance_right) || !_gtk_css_parser_try_double (parser, &distance_bottom) || !_gtk_css_parser_try_double (parser, &distance_left)) { _gtk_css_parser_error (parser, "Expected a number"); g_object_unref (file); return FALSE; } for (i = 0; i < 2; i++) { if (_gtk_css_parser_try (parser, "stretch", TRUE)) mods[i] = GTK_SLICE_STRETCH; else if (_gtk_css_parser_try (parser, "repeat", TRUE)) mods[i] = GTK_SLICE_REPEAT; else if (i == 0) { mods[1] = mods[0] = GTK_SLICE_STRETCH; break; } else mods[i] = mods[0]; } path = g_file_get_path (file); g_object_unref (file); pixbuf = gdk_pixbuf_new_from_file (path, &error); g_free (path); if (!pixbuf) { _gtk_css_parser_take_error (parser, error); return FALSE; } slice = _gtk_9slice_new (pixbuf, distance_top, distance_bottom, distance_left, distance_right, mods[0], mods[1]); g_object_unref (pixbuf); g_value_take_boxed (value, slice); return TRUE; } 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 char * enum_value_to_string (const GValue *value) { GEnumClass *enum_class; GEnumValue *enum_value; char *s; enum_class = g_type_class_ref (G_VALUE_TYPE (value)); enum_value = g_enum_get_value (enum_class, g_value_get_enum (value)); s = g_strdup (enum_value->value_nick); g_type_class_unref (enum_class); return s; } 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 char * flags_value_to_string (const GValue *value) { GFlagsClass *flags_class; GString *string; guint i, flags; flags_class = g_type_class_ref (G_VALUE_TYPE (value)); flags = g_value_get_flags (value); string = g_string_new (NULL); 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); return g_string_free (string, FALSE); } 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 char * bindings_value_to_string (const GValue *value) { GPtrArray *array; GString *str; guint i; array = g_value_get_boxed (value); str = g_string_new (NULL); for (i = 0; i < array->len; i++) { GtkBindingSet *binding_set = g_ptr_array_index (array, i); if (i > 0) g_string_append (str, ", "); g_string_append (str, binding_set->set_name); } return g_string_free (str, FALSE); } /*** 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 (¶meter[0].value, G_TYPE_INT); g_value_set_int (¶meter[0].value, border->top); parameter[1].name = left; g_value_init (¶meter[1].value, G_TYPE_INT); g_value_set_int (¶meter[1].value, border->left); parameter[2].name = bottom; g_value_init (¶meter[2].value, G_TYPE_INT); g_value_set_int (¶meter[2].value, border->bottom); parameter[3].name = right; g_value_init (¶meter[3].value, G_TYPE_INT); g_value_set_int (¶meter[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"); } /*** API ***/ static void css_string_funcs_init (void) { if (G_LIKELY (parse_funcs != NULL)) return; parse_funcs = g_hash_table_new (NULL, NULL); to_string_funcs = g_hash_table_new (NULL, NULL); register_conversion_function (GDK_TYPE_RGBA, rgba_value_parse, rgba_value_to_string); register_conversion_function (GDK_TYPE_COLOR, color_value_parse, color_value_to_string); register_conversion_function (GTK_TYPE_SYMBOLIC_COLOR, symbolic_color_value_parse, symbolic_color_value_to_string); register_conversion_function (PANGO_TYPE_FONT_DESCRIPTION, font_description_value_parse, font_description_value_to_string); register_conversion_function (G_TYPE_BOOLEAN, boolean_value_parse, boolean_value_to_string); register_conversion_function (G_TYPE_INT, int_value_parse, int_value_to_string); register_conversion_function (G_TYPE_UINT, uint_value_parse, uint_value_to_string); register_conversion_function (G_TYPE_DOUBLE, double_value_parse, double_value_to_string); register_conversion_function (G_TYPE_FLOAT, float_value_parse, float_value_to_string); register_conversion_function (G_TYPE_STRING, string_value_parse, string_value_to_string); register_conversion_function (GTK_TYPE_THEMING_ENGINE, theming_engine_value_parse, theming_engine_value_to_string); register_conversion_function (GTK_TYPE_ANIMATION_DESCRIPTION, animation_description_value_parse, animation_description_value_to_string); register_conversion_function (GTK_TYPE_BORDER, border_value_parse, border_value_to_string); register_conversion_function (GTK_TYPE_GRADIENT, gradient_value_parse, gradient_value_to_string); register_conversion_function (CAIRO_GOBJECT_TYPE_PATTERN, pattern_value_parse, NULL); register_conversion_function (GTK_TYPE_9SLICE, slice_value_parse, NULL); register_conversion_function (GTK_TYPE_SHADOW, shadow_value_parse, shadow_value_to_string); register_conversion_function (G_TYPE_ENUM, enum_value_parse, enum_value_to_string); register_conversion_function (G_TYPE_FLAGS, flags_value_parse, flags_value_to_string); register_conversion_function (G_TYPE_PTR_ARRAY, bindings_value_parse, bindings_value_to_string); } gboolean _gtk_css_value_parse (GValue *value, GtkCssParser *parser, GFile *base) { ParseFunc func; g_return_val_if_fail (value != NULL, FALSE); g_return_val_if_fail (parser != NULL, FALSE); css_string_funcs_init (); 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); } char * _gtk_css_value_to_string (const GValue *value) { ToStringFunc func; css_string_funcs_init (); func = g_hash_table_lookup (to_string_funcs, GSIZE_TO_POINTER (G_VALUE_TYPE (value))); if (func == NULL) func = g_hash_table_lookup (to_string_funcs, GSIZE_TO_POINTER (g_type_fundamental (G_VALUE_TYPE (value)))); if (func) return func (value); return g_strdup_value_contents (value); } 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) { GParamSpec *pspec; 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 */ pspec = g_param_spec_boxed ("color", "Foreground color", "Foreground color", GDK_TYPE_RGBA, 0); gtk_style_param_set_inherit (pspec, TRUE); gtk_style_properties_register_property (NULL, pspec); gtk_style_properties_register_property (NULL, g_param_spec_boxed ("background-color", "Background color", "Background color", GDK_TYPE_RGBA, 0)); pspec = g_param_spec_boxed ("font", "Font Description", "Font Description", PANGO_TYPE_FONT_DESCRIPTION, 0); gtk_style_param_set_inherit (pspec, TRUE); gtk_style_properties_register_property (NULL, pspec); pspec = g_param_spec_boxed ("text-shadow", "Text shadow", "Text shadow", GTK_TYPE_SHADOW, 0); gtk_style_param_set_inherit (pspec, TRUE); gtk_style_properties_register_property (NULL, pspec); gtk_style_properties_register_property (NULL, g_param_spec_boxed ("margin", "Margin", "Margin", GTK_TYPE_BORDER, 0)); gtk_style_properties_register_property (NULL, g_param_spec_boxed ("padding", "Padding", "Padding", GTK_TYPE_BORDER, 0)); 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), NULL, unpack_border_width, pack_border_width); gtk_style_properties_register_property (NULL, g_param_spec_int ("border-radius", "Border radius", "Border radius, in pixels", 0, G_MAXINT, 0, 0)); 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_properties_register_property (NULL, g_param_spec_boxed ("border-color", "Border color", "Border color", GDK_TYPE_RGBA, 0)); 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", "Border Image", "Border Image", GTK_TYPE_9SLICE, 0)); 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_properties_register_property (NULL, g_param_spec_boxed ("gtk-key-bindings", "Key bindings", "Key bindings", G_TYPE_PTR_ARRAY, 0)); } 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, GtkStylePropertyParser parse_func, GtkStyleUnpackFunc unpack_func, GtkStylePackFunc pack_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->pspec = pspec; node->parse_func = parse_func; node->pack_func = pack_func; node->unpack_func = unpack_func; g_hash_table_insert (properties, pspec->name, node); }