// Flush a message port
void flush_port(struct MsgPort *port)
{
struct Message *msg;
while ((msg=GetMsg(port)))
ReplyFreeMsg(msg);
}
// Free backdrop info stuff
void backdrop_free_info(BackdropInfo *info)
{
// Free boopsi objects
BOOPSIFree(&info->boopsi_list);
// Free regions
if (info->clip_region)
{
DisposeRegion(info->clip_region);
info->clip_region=0;
}
if (info->temp_region)
{
DisposeRegion(info->temp_region);
info->temp_region=0;
}
// Clear gadget pointers
info->horiz_scroller=0;
info->vert_scroller=0;
info->window=0;
// Free notification port
if (info->notify_port)
{
struct Message *msg;
// Remove request
if (info->notify_req)
{
RemoveNotifyRequest(info->notify_req);
info->notify_req=0;
}
// Clear port of messages
while (msg=GetMsg(info->notify_port))
ReplyFreeMsg(msg);
// Delete port
DeleteMsgPort(info->notify_port);
info->notify_port=0;
}
}
// Got a notify message from PutDiskObject()
BOOL backdrop_check_notify(
BackdropInfo *info,
DOpusNotify *notify,
Lister *lister)
{
char *name_buf;
BOOL disk=0,ret=0;
struct List *search;
BackdropObject *object;
if (!(name_buf=AllocVec(256,0)))
return 0;
// Disk icon?
if (notify->dn_Name[strlen(notify->dn_Name)-1]==':')
{
char *ptr;
// Get volume name
if ((ptr=strchr(notify->dn_Name,':')))
{
stccpy(name_buf,notify->dn_Name,ptr-notify->dn_Name+1);
disk=1;
}
}
// Otherwise copy name and clear it
else
{
// Get name pointer
char *name=FilePart(notify->dn_Name);
// Copy name
strcpy(name_buf,name);
*name=0;
// Strip trailing '/'
if (*(name-1)=='/') *(name-1)=0;
}
// Is this a lister?
if (lister)
{
short len;
BOOL ok=0;
// Match length
len=strlen(notify->dn_Name);
// See if strings match
if (strnicmp(lister->cur_buffer->buf_Path,notify->dn_Name,len)==0)
{
// Check termination
if (lister->cur_buffer->buf_Path[len]=='\0') ok=1;
// / can terminate too
else
if (lister->cur_buffer->buf_Path[len]=='/' &&
lister->cur_buffer->buf_Path[len+1]=='\0') ok=1;
}
// Didn't match?
if (!ok)
{
// Free message
ReplyFreeMsg(notify);
FreeVec(name_buf);
return 0;
}
}
// Lock backdrop list
lock_listlock(&info->objects,1);
// See if there's an icon of this name
search=&info->objects.list;
while ((object=(BackdropObject *)FindNameI(search,name_buf)))
{
// Disk?
if (object->type==BDO_DISK && disk)
{
// Matched
break;
}
// Valid object?
else
if (object->type!=BDO_APP_ICON &&
object->type!=BDO_BAD_DISK &&
object->path)
{
char *path=0;
BPTR lock;
// If no lister, get full path of object
if (!lister && (path=AllocVec(512,0)))
{
// Lock path
if ((lock=Lock(object->path,ACCESS_READ)))
{
// Get full path
DevNameFromLockDopus(lock,path,512);
UnLock(lock);
}
// Failed
else strcpy(path,object->path);
}
// Objects in same directory?
if (lister || stricmp(notify->dn_Name,(path)?path:object->path)==0)
{
// Free path
if (path) FreeVec(path);
// Matched
break;
}
// Free path
if (path) FreeVec(path);
}
// If this is a lister, there could only be one
if (lister)
{
object=0;
break;
}
// Keep searching from this object
search=(struct List *)object;
}
// Got object?
if (object)
{
ULONG old_image1=0,old_image2=0,new_image1,new_image2,old_flags=0,new_flags;
BOOL redraw=0;
struct DiskObject *old;
// Save old icon
old=object->icon;
object->icon=0;
// Not deleted?
if (!notify->dn_Flags)
{
// Get image checksums
old_image1=IconCheckSum(old,0);
old_image2=IconCheckSum(old,1);
old_flags=GetIconFlags(old);
// Get new icon
backdrop_get_icon(info,object,GETICON_CD|GETICON_NO_POS|GETICON_FAIL);
}
// No icon now?
if (!object->icon)
{
// Replace old icon
object->icon=old;
// Erase old object
backdrop_erase_icon(info,object,BDSF_RECALC);
// Is object a disk?
if (object->type==BDO_DISK)
{
// Signal to refresh drives
IPC_Command(info->ipc,MAINCMD_REFRESH_DRIVES,0,0,0,0);
}
// Remove object from list
backdrop_remove_object(info,object);
}
// Ok to keep going
else
{
// Get image checksums
new_image1=IconCheckSum(object->icon,0);
new_image2=IconCheckSum(object->icon,1);
new_flags=GetIconFlags(object->icon);
// Mask out uninteresting flag bits
old_flags&=ICONF_BORDER_OFF|ICONF_BORDER_ON|ICONF_NO_LABEL;
new_flags&=ICONF_BORDER_OFF|ICONF_BORDER_ON|ICONF_NO_LABEL;
// Need to redraw?
if (old_image1!=new_image1 ||
old_image2!=new_image2 ||
old_flags!=new_flags)
{
// Erase old object
backdrop_erase_icon(info,object,0);
redraw=1;
}
// Free old icon
if (old)
{
// Free icon remapping
RemapIcon(old,(info->window)?info->window->WScreen:0,1);
// Free icon
FreeCachedDiskObject(old);
}
// Fix new icon size
backdrop_get_icon(info,object,GETICON_POS_ONLY|GETICON_SAVE_POS|GETICON_KEEP);
// Need to get masks?
if (!backdrop_icon_border(object))
{
// Get masks for this icon
backdrop_get_masks(object);
}
// Show new icon
if (redraw) backdrop_render_object(info,object,BRENDERF_CLIP);
}
ret=1;
}
// Otherwise, got lister?
else
if (lister)
{
// Tell lister to get icons
IPC_Command(lister->ipc,LISTER_GET_ICONS,0,0,0,0);
ret=1;
}
// Or, on the desktop?
else
if (info->flags&BDIF_MAIN_DESKTOP)
{
BPTR lock1,lock2;
// Lock the desktop folder and the changed directory
if ((lock1=Lock(environment->env->desktop_location,ACCESS_READ)) &&
(lock2=Lock(notify->dn_Name,ACCESS_READ)))
{
// Same directory?
if (SameLock(lock1,lock2)==LOCK_SAME)
{
// Update the desktop folder
misc_startup("dopus_desktop_update",MENU_UPDATE_DESKTOP,GUI->window,0,TRUE);
}
// Unlock second lock
UnLock(lock2);
}
// Unlock first lock
UnLock(lock1);
}
// Unlock list
unlock_listlock(&info->objects);
// Free message
ReplyFreeMsg(notify);
FreeVec(name_buf);
return ret;
}
