/**
* Object-to-Config function.
* Creates a config-node (and subnodes) from a LedHardware model
* @param c the current preferences context
* @param n a freshly created prefs node that this function should fill with properties of obj
* @param obj object of this class where preferences should be generated from
* @result NFT_SUCCESS if everything went fine, NFT_FAILURE otherwise
* @note you shouldn't call this function directly
* It's used by nft_prefs_obj_to_node() etc.
*/
static NftResult _prefs_from_chain(NftPrefs * p, NftPrefsNode * n, void *obj,
void *userptr)
{
if(!p || !n || !obj)
NFT_LOG_NULL(NFT_FAILURE);
/* chain to generate preferences from */
LedChain *c = obj;
/* amount of LEDs in this chain - ledcount */
if(!nft_prefs_node_prop_int_set(n, LED_CHAIN_PROP_LEDCOUNT,
led_chain_get_ledcount(c)))
return NFT_FAILURE;
/* pixel-format of this chain */
if(!nft_prefs_node_prop_string_set(n, LED_CHAIN_PROP_FORMAT,
(char *) led_pixel_format_to_string
(led_chain_get_format(c))))
return NFT_FAILURE;
/* add all LEDs in this chain */
LedCount i;
for(i = 0; i < led_chain_get_ledcount(c); i++)
{
/* generate prefs node from LED */
NftPrefsNode *node;
if(!
(node = led_prefs_led_to_node(p, led_chain_get_nth(c, i))))
return NFT_FAILURE;
/* add node as child of this node */
if(!nft_prefs_node_add_child(n, node))
return NFT_FAILURE;
}
return NFT_SUCCESS;
}
/** build list of Leds */
static void _build(
NiftyconfChain * c)
{
/* rebuild */
LedCount i;
for(i = 0; i < led_chain_get_ledcount(chain_niftyled(c)); i++)
{
Led *led = led_chain_get_nth(chain_niftyled(c), i);
GtkTreeIter iter;
gtk_list_store_append(GTK_LIST_STORE(UI("liststore")), &iter);
gtk_list_store_set(GTK_LIST_STORE(UI("liststore")), &iter,
C_CHAIN_LED, i,
C_CHAIN_ELEMENT, led_get_privdata(led),
-1);
led_set_highlighted(led_get_privdata(led), false);
renderer_led_damage(led_get_privdata(led));
}
gtk_widget_show(GTK_WIDGET(UI("treeview")));
}
/**
* Config-to-Object function.
* Creates a LedHardware model from a prefs node
* @note you shouldn't call this function directly
* It's used by nft_prefs_obj_from_node() etc.
*/
static NftResult _prefs_to_chain(LedPrefs * p, void **newObj,
NftPrefsNode * n, void *userptr)
{
if(!p || !newObj)
NFT_LOG_NULL(NFT_FAILURE);
/* LedCount of chain */
int ledcount = 0;
if(!nft_prefs_node_prop_int_get
(n, LED_CHAIN_PROP_LEDCOUNT, &ledcount))
{
NFT_LOG(L_WARNING,
"chain has no \"%s\" property. Using %d as default.",
LED_CHAIN_PROP_LEDCOUNT, ledcount);
}
/* new chain */
LedChain *c;
/* get format of this chain */
char *format;
if(!(format = nft_prefs_node_prop_string_get(n,
LED_CHAIN_PROP_FORMAT)))
{
#define LED_CHAIN_DEFAULT_FORMAT "RGB u8"
NFT_LOG(L_WARNING,
"chain has no \"%s\" property. Using \"%s\" as default.",
LED_CHAIN_PROP_FORMAT, LED_CHAIN_DEFAULT_FORMAT);
/* new chain (with default format) */
if(!(c = led_chain_new((LedCount) ledcount, LED_CHAIN_DEFAULT_FORMAT)))
{
NFT_LOG(L_ERROR,
"Failed to create new LedSetup object");
return NFT_FAILURE;
}
/* free string */
nft_prefs_free(format);
}
/* create new chain with given format */
else
{
/* new chain */
if(!(c = led_chain_new(ledcount, format)))
{
NFT_LOG(L_ERROR,
"Failed to create new LedSetup object");
return NFT_FAILURE;
}
}
/* free string */
nft_prefs_free(format);
/* process child nodes (LEDs) */
NftPrefsNode *child;
LedCount i = 0;
for(child = nft_prefs_node_get_first_child(n);
child; child = nft_prefs_node_get_next(child))
{
/* check if node describes a Led object */
if(!led_prefs_is_led_node(child))
{
NFT_LOG(L_ERROR,
"\"chain\" may only contain \"%s\" children. Skipping \"%s\".",
LED_LED_NAME, nft_prefs_node_get_name(child));
continue;
}
/* create Led from node */
Led *l = led_chain_get_nth(c, i++);
if(!led_prefs_led_from_node(p, child, l))
goto _ptc_error;
}
/* save new chain-object to "newObj" pointer */
*newObj = c;
return NFT_SUCCESS;
_ptc_error:
led_chain_destroy(c);
return NFT_FAILURE;
}
/** renderer for chains */
static NftResult _render_chain(
cairo_surface_t ** s,
gpointer element)
{
if(!s || !*s || !element)
NFT_LOG_NULL(NFT_FAILURE);
/* get this chain */
NiftyconfChain *chain = (NiftyconfChain *) element;
LedChain *c = chain_niftyled(chain);
/* if dimensions changed, we need to allocate a new surface */
int width = (led_chain_get_max_x(c) + 1) * renderer_scale_factor();
int height = (led_chain_get_max_y(c) + 1) * renderer_scale_factor();
NiftyconfRenderer *r = chain_get_renderer(chain);
if(!renderer_resize(r, width, height))
{
g_error("Failed to resize renderer to %dx%d", width, height);
return NFT_FAILURE;
}
/* create context for drawing */
cairo_t *cr = cairo_create(*s);
/* disable antialiasing */
cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);
/* clear surface */
cairo_set_source_rgba(cr, 0, 0, 0, 1);
cairo_rectangle(cr,
0, 0,
(double) cairo_image_surface_get_width(*s),
(double) cairo_image_surface_get_height(*s));
cairo_fill(cr);
/* set line-width */
cairo_set_line_width(cr, 1);
/* walk all LEDs */
LedCount i;
for(i = 0; i < led_chain_get_ledcount(c); i++)
{
Led *l = led_chain_get_nth(c, i);
NiftyconfLed *led = led_get_privdata(l);
NiftyconfRenderer *lr = led_get_renderer(led);
cairo_set_source_surface(cr, renderer_get_surface(lr),
(double) led_get_x(l) *
renderer_scale_factor(),
(double) led_get_y(l) *
renderer_scale_factor());
cairo_paint(cr);
}
cairo_destroy(cr);
return NFT_SUCCESS;
}
