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Add luaA_pushcolor() for pushing color_t* 

Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2009-04-17 18:57:59 +02:00 committed by Julien Danjou
parent 99b521b2c7
commit 7f663ad563
2 changed files with 24 additions and 0 deletions
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23
luaa.c
View File

@ -848,4 +848,27 @@ luaA_pushxcolor(lua_State *L, const xcolor_t *c)
return 1;
}
/** Push a color as a string onto the stack
* \param L The Lua VM state.
* \param c The color to push.
* \return The number of elements pushed on stack.
*/
int
luaA_pushcolor(lua_State *L, const color_t *c)
{
uint8_t r = c->red;
uint8_t g = c->green;
uint8_t b = c->blue;
uint8_t a = c->alpha;
char s[10];
int len;
/* do not print alpha if it's full */
if(a == 0xff)
len = snprintf(s, sizeof(s), "#%02x%02x%02x", r, g, b);
else
len = snprintf(s, sizeof(s), "#%02x%02x%02x%02x", r, g, b, a);
lua_pushlstring(L, s, len);
return 1;
}
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80

1
luaa.h
View File

@ -332,6 +332,7 @@ void luaA_init(xdgHandle);
bool luaA_parserc(xdgHandle, const char *, bool);
void luaA_on_timer(EV_P_ ev_timer *, int);
int luaA_pushxcolor(lua_State *, const xcolor_t *);
int luaA_pushcolor(lua_State *, const color_t *);
bool luaA_hasitem(lua_State *, const void *);
void luaA_table2wtable(lua_State *);
int luaA_next(lua_State *, int);