Commit 736a5a32 authored by Milan Crha's avatar Milan Crha

[CompEditor] Use CSS3 color name in the iCalendar COLOR property

This is required by the RFC 7986: https://tools.ietf.org/html/rfc7986#section-5.9

Related to GNOME/evolution#37
parent 7ba003ac
......@@ -1616,6 +1616,8 @@ typedef struct _ECompEditorPropertyPartColorClass ECompEditorPropertyPartColorCl
struct _ECompEditorPropertyPartColor {
ECompEditorPropertyPart parent;
gulong notify_current_color_id;
};
struct _ECompEditorPropertyPartColorClass {
......@@ -1626,11 +1628,304 @@ GType e_comp_editor_property_part_color_get_type (void) G_GNUC_CONST;
G_DEFINE_TYPE (ECompEditorPropertyPartColor, e_comp_editor_property_part_color, E_TYPE_COMP_EDITOR_PROPERTY_PART)
#ifdef HAVE_ICAL_COLOR_PROPERTY
static const gchar *
ecepp_color_rgba_to_string (const GdkRGBA *rgba)
{
const struct _colors {
const gchar *name;
guchar rr, gg, bb;
} colors[] = {
{ "aliceblue", 240, 248, 255 },
{ "antiquewhite", 250, 235, 215 },
{ "aqua", 0, 255, 255 },
{ "aquamarine", 127, 255, 212 },
{ "azure", 240, 255, 255 },
{ "beige", 245, 245, 220 },
{ "bisque", 255, 228, 196 },
{ "black", 0, 0, 0 },
{ "blanchedalmond", 255, 235, 205 },
{ "blue", 0, 0, 255 },
{ "blueviolet", 138, 43, 226 },
{ "brown", 165, 42, 42 },
{ "burlywood", 222, 184, 135 },
{ "cadetblue", 95, 158, 160 },
{ "chartreuse", 127, 255, 0 },
{ "chocolate", 210, 105, 30 },
{ "coral", 255, 127, 80 },
{ "cornflowerblue", 100, 149, 237 },
{ "cornsilk", 255, 248, 220 },
{ "crimson", 220, 20, 60 },
{ "cyan", 0, 255, 255 },
{ "darkblue", 0, 0, 139 },
{ "darkcyan", 0, 139, 139 },
{ "darkgoldenrod", 184, 134, 11 },
{ "darkgray", 169, 169, 169 },
{ "darkgreen", 0, 100, 0 },
{ "darkgrey", 169, 169, 169 },
{ "darkkhaki", 189, 183, 107 },
{ "darkmagenta", 139, 0, 139 },
{ "darkolivegreen", 85, 107, 47 },
{ "darkorange", 255, 140, 0 },
{ "darkorchid", 153, 50, 204 },
{ "darkred", 139, 0, 0 },
{ "darksalmon", 233, 150, 122 },
{ "darkseagreen", 143, 188, 143 },
{ "darkslateblue", 72 , 61, 139 },
{ "darkslategray", 47, 79, 79 },
{ "darkslategrey", 47, 79, 79 },
{ "darkturquoise", 0, 206, 209 },
{ "darkviolet", 148, 0, 211 },
{ "deeppink", 255, 20, 147 },
{ "deepskyblue", 0, 191, 255 },
{ "dimgray", 105, 105, 105 },
{ "dimgrey", 105, 105, 105 },
{ "dodgerblue", 30, 144, 255 },
{ "firebrick", 178, 34, 34 },
{ "floralwhite", 255, 250, 240 },
{ "forestgreen", 34, 139, 34 },
{ "fuchsia", 255, 0, 255 },
{ "gainsboro", 220, 220, 220 },
{ "ghostwhite", 248, 248, 255 },
{ "gold", 255, 215, 0 },
{ "goldenrod", 218, 165, 32 },
{ "gray", 128, 128, 128 },
{ "green", 0, 128, 0 },
{ "greenyellow", 173, 255, 47 },
{ "grey", 128, 128, 128 },
{ "honeydew", 240, 255, 240 },
{ "hotpink", 255, 105, 180 },
{ "indianred", 205, 92, 92 },
{ "indigo", 75, 0, 130 },
{ "ivory", 255, 255, 240 },
{ "khaki", 240, 230, 140 },
{ "lavender", 230, 230, 250 },
{ "lavenderblush", 255, 240, 245 },
{ "lawngreen", 124, 252, 0 },
{ "lemonchiffon", 255, 250, 205 },
{ "lightblue", 173, 216, 230 },
{ "lightcoral", 240, 128, 128 },
{ "lightcyan", 224, 255, 255 },
{ "lightgoldenrodyellow", 250, 250, 210 },
{ "lightgray", 211, 211, 211 },
{ "lightgreen", 144, 238, 144 },
{ "lightgrey", 211, 211, 211 },
{ "lightpink", 255, 182, 193 },
{ "lightsalmon", 255, 160, 122 },
{ "lightseagreen", 32, 178, 170 },
{ "lightskyblue", 135, 206, 250 },
{ "lightslategray", 119, 136, 153 },
{ "lightslategrey", 119, 136, 153 },
{ "lightsteelblue", 176, 196, 222 },
{ "lightyellow", 255, 255, 224 },
{ "lime", 0, 255, 0 },
{ "limegreen", 50, 205, 50 },
{ "linen", 250, 240, 230 },
{ "magenta", 255, 0, 255 },
{ "maroon", 128, 0, 0 },
{ "mediumaquamarine", 102, 205, 170 },
{ "mediumblue", 0, 0, 205 },
{ "mediumorchid", 186, 85, 211 },
{ "mediumpurple", 147, 112, 219 },
{ "mediumseagreen", 60, 179, 113 },
{ "mediumslateblue", 123, 104, 238 },
{ "mediumspringgreen", 0, 250, 154 },
{ "mediumturquoise", 72, 209, 204 },
{ "mediumvioletred", 199, 21, 133 },
{ "midnightblue", 25, 25, 112 },
{ "mintcream", 245, 255, 250 },
{ "mistyrose", 255, 228, 225 },
{ "moccasin", 255, 228, 181 },
{ "navajowhite", 255, 222, 173 },
{ "navy", 0, 0, 128 },
{ "oldlace", 253, 245, 230 },
{ "olive", 128, 128, 0 },
{ "olivedrab", 107, 142, 35 },
{ "orange", 255, 165, 0 },
{ "orangered", 255, 69, 0 },
{ "orchid", 218, 112, 214 },
{ "palegoldenrod", 238, 232, 170 },
{ "palegreen", 152, 251, 152 },
{ "paleturquoise", 175, 238, 238 },
{ "palevioletred", 219, 112, 147 },
{ "papayawhip", 255, 239, 213 },
{ "peachpuff", 255, 218, 185 },
{ "peru", 205, 133, 63 },
{ "pink", 255, 192, 203 },
{ "plum", 221, 160, 221 },
{ "powderblue", 176, 224, 230 },
{ "purple", 128, 0, 128 },
{ "red", 255, 0, 0 },
{ "rosybrown", 188, 143, 143 },
{ "royalblue", 65, 105, 225 },
{ "saddlebrown", 139, 69, 19 },
{ "salmon", 250, 128, 114 },
{ "sandybrown", 244, 164, 96 },
{ "seagreen", 46, 139, 87 },
{ "seashell", 255, 245, 238 },
{ "sienna", 160, 82, 45 },
{ "silver", 192, 192, 192 },
{ "skyblue", 135, 206, 235 },
{ "slateblue", 106, 90, 205 },
{ "slategray", 112, 128, 144 },
{ "slategrey", 112, 128, 144 },
{ "snow", 255, 250, 250 },
{ "springgreen", 0, 255, 127 },
{ "steelblue", 70, 130, 180 },
{ "tan", 210, 180, 140 },
{ "teal", 0, 128, 128 },
{ "thistle", 216, 191, 216 },
{ "tomato", 255, 99, 71 },
{ "turquoise", 64, 224, 208 },
{ "violet", 238, 130, 238 },
{ "wheat", 245, 222, 179 },
{ "white", 255, 255, 255 },
{ "whitesmoke", 245, 245, 245 },
{ "yellow", 255, 255, 0 },
{ "yellowgreen", 154, 205, 50 }
};
guchar rr, gg, bb;
gint best = G_MAXINT;
const gchar *name = NULL;
gint ii;
g_return_val_if_fail (rgba != NULL, NULL);
rr = 0xFF * rgba->red;
gg = 0xFF * rgba->green;
bb = 0xFF * rgba->blue;
for (ii = 0; ii < G_N_ELEMENTS (colors); ii++) {
gint delta_rr, delta_gg, delta_bb, rr_mid;
gint dist_cc;
delta_rr = colors[ii].rr - rr;
delta_gg = colors[ii].gg - gg;
delta_bb = colors[ii].bb - bb;
/* Exact match */
if (!delta_rr && !delta_gg && !delta_bb)
return colors[ii].name;
rr_mid = (colors[ii].rr + rr) / 2;
/* Euclidean distance: https://en.wikipedia.org/wiki/Color_difference */
dist_cc = ((2 + (rr_mid / 256.0)) * delta_rr * delta_rr) +
(4 * delta_gg * delta_gg) +
((2 + ((255 - rr_mid) / 256.0)) * delta_bb * delta_bb);
if (dist_cc < best) {
best = dist_cc;
name = colors[ii].name;
}
}
return name;
}
static void
ecepp_color_notify_current_color_cb (EColorCombo *color_combo,
GParamSpec *param,
gpointer user_data)
{
ECompEditorPropertyPartColor *color_part = user_data;
const gchar *color_name;
GdkRGBA rgba = { 0.0, 0.0, 0.0, 0.0 }, def_rgba = { 0.0, 0.0, 0.0, 0.0 }, parsed = {0.0, 0.0, 0.0, 0.0 };
g_return_if_fail (E_IS_COMP_EDITOR_PROPERTY_PART_COLOR (color_part));
e_color_combo_get_current_color (color_combo, &rgba);
e_color_combo_get_default_color (color_combo, &def_rgba);
if (gdk_rgba_equal (&rgba, &def_rgba))
return;
color_name = ecepp_color_rgba_to_string (&rgba);
if (color_name && gdk_rgba_parse (&parsed, color_name) && !gdk_rgba_equal (&rgba, &parsed)) {
g_signal_handler_block (color_combo, color_part->notify_current_color_id);
e_color_combo_set_current_color (color_combo, &parsed);
g_signal_handler_unblock (color_combo, color_part->notify_current_color_id);
}
}
#endif /* HAVE_ICAL_COLOR_PROPERTY */
static void
ecepp_color_set_palette (GtkWidget *color_combo)
{
const gchar *colors[] = {
"black",
"saddlebrown",
"rosybrown",
"darkgreen",
"midnightblue",
"navy",
"darkslateblue",
"darkslategray",
"maroon",
"orangered",
"olive",
"green",
"teal",
"blue",
"slategray",
"gray",
"red",
"orange",
"yellowgreen",
"seagreen",
"mediumturquoise",
"royalblue",
"purple",
"lightslategray",
"fuchsia",
"gold",
"yellow",
"lime",
"aqua",
"deepskyblue",
"brown",
"silver",
"lightpink",
"navajowhite",
"khaki",
"beige",
"lightcyan",
"lightskyblue",
"plum",
"white"
};
GList *palette = NULL;
gint ii;
g_return_if_fail (E_IS_COLOR_COMBO (color_combo));
for (ii = G_N_ELEMENTS (colors) - 1; ii >= 0 ; ii--) {
GdkRGBA *rgba;
rgba = g_new0 (GdkRGBA, 1);
g_warn_if_fail (gdk_rgba_parse (rgba, colors[ii]));
palette = g_list_prepend (palette, rgba);
}
e_color_combo_set_palette (E_COLOR_COMBO (color_combo), palette);
g_list_free_full (palette, g_free);
}
static void
ecepp_color_create_widgets (ECompEditorPropertyPart *property_part,
GtkWidget **out_label_widget,
GtkWidget **out_edit_widget)
{
#ifdef HAVE_ICAL_COLOR_PROPERTY
ECompEditorPropertyPartColor *color_part;
#endif
GdkRGBA rgba;
g_return_if_fail (E_IS_COMP_EDITOR_PROPERTY_PART_COLOR (property_part));
......@@ -1658,6 +1953,15 @@ ecepp_color_create_widgets (ECompEditorPropertyPart *property_part,
g_signal_connect_swapped (*out_edit_widget, "activated",
G_CALLBACK (e_comp_editor_property_part_emit_changed), property_part);
ecepp_color_set_palette (*out_edit_widget);
#ifdef HAVE_ICAL_COLOR_PROPERTY
color_part = E_COMP_EDITOR_PROPERTY_PART_COLOR (property_part);
color_part->notify_current_color_id =
g_signal_connect (*out_edit_widget, "notify::current-color",
G_CALLBACK (ecepp_color_notify_current_color_cb), property_part);
#endif
}
static void
......@@ -1727,9 +2031,9 @@ ecepp_color_fill_component (ECompEditorPropertyPart *property_part,
icalproperty_free (prop);
}
} else {
gchar *str;
const gchar *str;
str = gdk_rgba_to_string (&rgba);
str = ecepp_color_rgba_to_string (&rgba);
if (str) {
if (prop) {
icalproperty_set_color (prop, str);
......@@ -1737,8 +2041,6 @@ ecepp_color_fill_component (ECompEditorPropertyPart *property_part,
prop = icalproperty_new_color (str);
icalcomponent_add_property (component, prop);
}
g_free (str);
} else {
g_warning ("%s: Failed to convert RGBA (%f,%f,%f,%f) to string", G_STRFUNC, rgba.red, rgba.green, rgba.blue, rgba.alpha);
}
......
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