[evolution] [CompEditor] Use CSS3 color name in the iCalendar COLOR property
- From: Milan Crha <mcrha src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [evolution] [CompEditor] Use CSS3 color name in the iCalendar COLOR property
- Date: Tue, 2 Apr 2019 13:52:00 +0000 (UTC)
commit 736a5a3251a553de8f8a99385ef1911ec9e94dfe
Author: Milan Crha <mcrha redhat com>
Date: Tue Apr 2 15:50:30 2019 +0200
[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 https://gitlab.gnome.org/GNOME/evolution/issues/37
src/calendar/gui/e-comp-editor-property-parts.c | 310 +++++++++++++++++++++++-
1 file changed, 306 insertions(+), 4 deletions(-)
---
diff --git a/src/calendar/gui/e-comp-editor-property-parts.c b/src/calendar/gui/e-comp-editor-property-parts.c
index 967651f20f..78303ac976 100644
--- a/src/calendar/gui/e-comp-editor-property-parts.c
+++ b/src/calendar/gui/e-comp-editor-property-parts.c
@@ -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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