static void do_buttons_buttons(bContext *C, void *UNUSED(arg), int event)
{
SpaceButs *sbuts = CTX_wm_space_buts(C);
if (!sbuts) /* editor type switch */
return;
switch (event) {
case B_CONTEXT_SWITCH:
case B_BUTSPREVIEW:
ED_area_tag_redraw(CTX_wm_area(C));
set_texture_context(C, sbuts);
sbuts->preview = 1;
break;
}
sbuts->mainbuser = sbuts->mainb;
}
void buttons_texture_context_compute(const bContext *C, SpaceButs *sbuts)
{
/* gather available texture users in context. runs on every draw of
* properties editor, before the buttons are created. */
ButsContextTexture *ct = sbuts->texuser;
Scene *scene = CTX_data_scene(C);
ID *pinid = sbuts->pinid;
set_texture_context(C, sbuts);
if (!(BKE_scene_use_new_shading_nodes(scene) || (sbuts->texture_context == SB_TEXC_OTHER))) {
if (ct) {
BLI_freelistN(&ct->users);
MEM_freeN(ct);
sbuts->texuser = NULL;
}
return;
}
if (!ct) {
ct = MEM_callocN(sizeof(ButsContextTexture), "ButsContextTexture");
sbuts->texuser = ct;
}
else {
BLI_freelistN(&ct->users);
}
buttons_texture_users_from_context(&ct->users, C, sbuts);
if (pinid && GS(pinid->name) == ID_TE) {
ct->user = NULL;
ct->texture = (Tex *)pinid;
}
else {
/* set one user as active based on active index */
if (ct->index >= BLI_countlist(&ct->users))
ct->index = 0;
ct->user = BLI_findlink(&ct->users, ct->index);
ct->texture = NULL;
if (ct->user) {
if (ct->user->ptr.data) {
PointerRNA texptr;
Tex *tex;
/* get texture datablock pointer if it's a property */
texptr = RNA_property_pointer_get(&ct->user->ptr, ct->user->prop);
tex = (RNA_struct_is_a(texptr.type, &RNA_Texture)) ? texptr.data : NULL;
ct->texture = tex;
}
else if (ct->user->node && !(ct->user->node->flag & NODE_ACTIVE_TEXTURE)) {
ButsTextureUser *user;
/* detect change of active texture node in same node tree, in that
* case we also automatically switch to the other node */
for (user = ct->users.first; user; user = user->next) {
if (user->ntree == ct->user->ntree && user->node != ct->user->node) {
if (user->node->flag & NODE_ACTIVE_TEXTURE) {
ct->user = user;
ct->index = BLI_findindex(&ct->users, user);
break;
}
}
}
}
}
}
}
