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Implement Consistent Color Generation (XEP-0392)

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This should make colors used by Delta Chat for emails similar to colors
used by XMPP clients implementing the same specification[1], such as
Conversations and Snikket.

Previously Delta Chat used only hardcoded 16 colors, so this change
should also increase the number of colors and make it easier to
distinguish different contacts.

[1] https://xmpp.org/extensions/xep-0392.html
This commit is contained in:
link2xt
2021-02-12 21:36:04 +03:00
committed by link2xt
parent 982dc53dc1
commit a2c3233c19
7 changed files with 67 additions and 35 deletions
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7
src/contact.rs
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@@ -9,15 +9,14 @@ use regex::Regex;
use crate::aheader::EncryptPreference;
use crate::chat::ChatId;
use crate::color::str_to_color;
use crate::config::Config;
use crate::constants::{
Chattype, DC_CHAT_ID_DEADDROP, DC_CONTACT_ID_DEVICE, DC_CONTACT_ID_DEVICE_ADDR,
DC_CONTACT_ID_LAST_SPECIAL, DC_CONTACT_ID_SELF, DC_GCL_ADD_SELF, DC_GCL_VERIFIED_ONLY,
};
use crate::context::Context;
use crate::dc_tools::{
dc_get_abs_path, dc_str_to_color, improve_single_line_input, listflags_has, EmailAddress,
};
use crate::dc_tools::{dc_get_abs_path, improve_single_line_input, listflags_has, EmailAddress};
use crate::events::EventType;
use crate::key::{DcKey, SignedPublicKey};
use crate::login_param::LoginParam;
@@ -947,7 +946,7 @@ impl Contact {
/// and can be used for an fallback avatar with white initials
/// as well as for headlines in bubbles of group chats.
pub fn get_color(&self) -> u32 {
dc_str_to_color(&self.addr)
str_to_color(&self.addr)
}
/// Gets the contact's status.