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get contact-color based on lower-case email-address or chat-name

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B. Petersen 2018-12-13 14:11:38 +01:00
parent bbca9c9d51
commit b39b43ccde
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GPG key ID: 3B88E92DEA8E9AFC
1 changed files with 5 additions and 2 deletions
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7
src/dc_tools.c
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@ -606,6 +606,8 @@ clist* dc_str_to_clist(const char* str, const char* delimiter)
int dc_str_to_color(const char* str)
{
char* str_lower = dc_strlower(str);
static uint32_t colors[] = {
0xe56555,
0xf28c48,
@ -618,14 +620,15 @@ int dc_str_to_color(const char* str)
};
int checksum = 0;
int str_len = strlen(str);
int str_len = strlen(str_lower);
for (int i = 0; i < str_len; i++) {
checksum += (i+1)*str[i];
checksum += (i+1)*str_lower[i];
checksum %= 0x00FFFFFF;
}
int color_index = checksum % (sizeof(colors)/sizeof(uint32_t));
free(str_lower);
return colors[color_index];
}