// handle callback from remote DrawLink.
void DrawServ::grid_message_callback(DrawLink* link, unsigned int id, unsigned int selector,
int state, unsigned int oldselector)
{
void* ptr = nil;
gridtable()->find(ptr, id);
if (ptr) {
GraphicId* grid = (GraphicId*)ptr;
/* if request is granted, add to selection */
if (grid->selected()==LinkSelection::WaitingToBeSelected && selector==sessionid()) {
grid->selector(selector);
fprintf(stderr, "grid: request granted, add to selection now\n");
OverlayComp* comp = (OverlayComp*)grid->grcomp();
LinkSelection* sel = (LinkSelection*)DrawKit::Instance()->GetEditor()->GetSelection();
sel->AddComp(comp);
}
/* otherwise, pass the granting message along */
else {
fprintf(stderr, "grid: pass grant request along\n");
char buf[BUFSIZ];
snprintf(buf, BUFSIZ, "grid(chgid(0x%08x) chgid(0x%08x) :grant chgid(0x%08x))%c",
grid->id(), selector, oldselector, '\0');
SendCmdString(linkget(selector), buf);
}
}
}
void DrawServ::print_gridtable() {
GraphicIdTable* table = gridtable();
GraphicIdTable_Iterator it(*table);
printf("id &grid &grcomp selector selected\n");
printf("---------- ---------- ---------- ---------- --------\n");
while(it.more()) {
GraphicId* grid = (GraphicId*)it.cur_value();
printf("0x%08x 0x%08lx 0x%08lx 0x%08lx %s\n",
(unsigned int)it.cur_key(), (unsigned long)grid, (unsigned long)grid->grcomp(),
(unsigned long)grid->selector(), LinkSelection::selected_string(grid->selected()));
it.next();
}
}
void LinkSelection::Clear(Viewer* viewer) {
#if 0
fprintf(stderr, "LinkSelection::Clear\n");
#endif
#if 0
CompIdTable* table = ((DrawServ*)unidraw)->compidtable();
Iterator it;
First(it);
while(!Done(it)) {
OverlayView* view = GetView(it);
OverlayComp* comp = view ? view->GetOverlayComp() : nil;
void* ptr = nil;
table->find(ptr, (void*)comp);
if (ptr) {
GraphicId* grid = (GraphicId*)ptr;
if (grid->selected()==LocallySelected || grid->selected()==WaitingToBeSelected)
grid->selected(NotSelected);
char buf[BUFSIZ];
snprintf(buf, BUFSIZ, "grid(chgid(0x%08x) chgid(0x%08x) :state %d)%c",
grid->id(), grid->selector(), grid->selected(), '\0');
((DrawServ*)unidraw)->DistributeCmdString(buf);
}
Next(it);
}
#endif
OverlaySelection::Clear(viewer);
Reserve();
}
void LinkSelection::Reserve() {
#if 0
fprintf(stderr, "LinkSelection::Reserve\n");
#endif
CompIdTable* table = ((DrawServ*)unidraw)->compidtable();
/* clear anything that was in the previous selection, but not in this one */
Selection* lastsel = _editor->last_selection();
if (!lastsel) return;
Iterator lt;
lastsel->First(lt);
Iterator it;
while (!lastsel->Done(lt)) {
First(it);
boolean match = false;
while (!Done(it) && !match) {
if(GetView(it)==lastsel->GetView(lt))
match = true;
else
Next(it);
}
if (!match) {
OverlayComp* comp = ((OverlayView*)lastsel->GetView(lt))->GetOverlayComp();
void* ptr = nil;
table->find(ptr, (void*)comp);
if (ptr) {
GraphicId* grid = (GraphicId*)ptr;
grid->selected(NotSelected);
((DrawServ*)unidraw)->grid_message(grid);
}
}
lastsel->Remove(lt);
}
/* remove anything from selection that has a remote selector */
First(it);
while (!Done(it)) {
int removed = false;
OverlayView* view = GetView(it);
OverlayComp* comp = view ? view->GetOverlayComp() : nil;
void* ptr = nil;
table->find(ptr, (void*)comp);
if (ptr) {
GraphicId* grid = (GraphicId*)ptr;
if (grid->selector() &&
((DrawServ*)unidraw)->sessionid()!=grid->selector()) {
Remove(it);
removed = true;
if (grid->selected()==NotSelected) {
/* make a request to select this in the future */
grid->selected(WaitingToBeSelected);
((DrawServ*)unidraw)->grid_message(grid);
}
} else {
if (grid->selected()!=LocallySelected) {
grid->selected(LocallySelected);
((DrawServ*)unidraw)->grid_message(grid);
}
}
}
if (!removed)
Next(it);
}
/* store copy of selection */
First(it);
while (!Done(it)) {
lastsel->Append(GetView(it));
Next(it);
}
}
// handle reserve request from remote DrawLink.
void DrawServ::grid_message_handle(DrawLink* link, unsigned int id, unsigned int selector,
int state, unsigned int newselector)
{
void* ptr = nil;
gridtable()->find(ptr, id);
if (ptr) {
GraphicId* grid = (GraphicId*)ptr;
/* if this request is aimed here */
if (selector==sessionid() && newselector!=0) {
/* if graphic is still locally owned */
if (grid->selector()==sessionid()) {
/* if graphic is not actually selected */
if ((grid->selected()==LinkSelection::NotSelected ||
grid->selected()==LinkSelection::WaitingToBeSelected)) {
grid->selected(LinkSelection::NotSelected);
grid->selector(newselector);
char buf[BUFSIZ];
snprintf(buf, BUFSIZ, "grid(chgid(0x%08x) chgid(0x%08x) :grant chgid(0x%08x))%c",
grid->id(), newselector, sessionid(), '\0');
SendCmdString(link, buf);
fprintf(stderr, "grid: request granted\n");
}
/* else do nothing, because it is selected */
else {
fprintf(stderr, "grid: request ignored, graphic locally selected\n");
}
}
/* else reformulate this request and pass it along */
else {
fprintf(stderr, "grid: request passed along to current selector\n");
char buf[BUFSIZ];
snprintf(buf, BUFSIZ, "grid(chgid(0x%08x) chgid(0x%08x) :request chgid(0x%08x))%c",
grid->id(), grid->selector(), newselector, '\0');
SendCmdString(linkget(grid->selector()), buf);
}
}
/* else this request and/or simple state update should be passed along */
else {
/* if simple state, set the values here, and pass it on to everyone else */
if (newselector==0) {
if (linklist()->Number()>1)
fprintf(stderr, "grid: state change passed along to everyone else\n");
grid->selector(selector);
grid->selected(state);
char buf[BUFSIZ];
snprintf(buf, BUFSIZ, "grid(chgid(0x%08x) chgid(0x%08x) :state %d)%c",
grid->id(), grid->selector(), grid->selected(), '\0');
DistributeCmdString(buf, link);
}
/* else pass the request on to the target selector */
else {
fprintf(stderr, "grid: request passed along to targeted selector");
char buf[BUFSIZ];
snprintf(buf, BUFSIZ, "grid(chgid(0x%08x) chgid(0x%08x) :request chgid(0x%08x))%c",
grid->id(), selector, newselector, '\0');
SendCmdString(linkget(grid->selector()), buf);
}
}
}
}
void DrawServ::ExecuteCmd(Command* cmd) {
static int grid_sym = symbol_add("grid");
static int sid_sym = symbol_add("sid");
boolean original = false;
unsigned int from_sid = 0;
if(!_linklist || _linklist->Number()==0)
/* normal Unidraw command execution */
Unidraw::ExecuteCmd(cmd);
else {
/* indirect command execution, all by script */
std::ostrstream sbuf;
boolean oldflag = OverlayScript::ptlist_parens();
OverlayScript::ptlist_parens(false);
switch (cmd->GetClassId()) {
case PASTE_CMD:
{
boolean scripted = false;
Clipboard* cb = cmd->GetClipboard();
if (cb) {
Iterator it;
for (cb->First(it); !cb->Done(it); cb->Next(it)) {
OverlayComp* comp = (OverlayComp*)cb->GetComp(it);
AttributeList* al = comp->GetAttributeList();
AttributeValue* idv = al->find(grid_sym);
AttributeValue* sidv = al->find(sid_sym);
from_sid = sidv ? sidv->uint_val() : 0;
/* unique id already remotely assigned */
if (idv && idv->uint_val() !=0 && sidv && sidv->uint_val() !=0) {
GraphicId* graphicid = new GraphicId();
graphicid->grcomp(comp);
graphicid->id(idv->uint_val());
graphicid->selector(sidv->uint_val());
graphicid->selected(LinkSelection::RemotelySelected);
}
/* generate unique id and add as attribute */
/* also mark with selector id */
else {
GraphicId* graphicid = new GraphicId(sessionid());
graphicid->grcomp(comp);
graphicid->selector(((DrawServ*)unidraw)->sessionid());
AttributeValue* gridv = new AttributeValue(graphicid->id(), AttributeValue::UIntType);
gridv->state(AttributeValue::HexState);
al->add_attr(grid_sym, gridv);
AttributeValue* sidv = new AttributeValue(graphicid->selector(), AttributeValue::UIntType);
sidv->state(AttributeValue::HexState);
al->add_attr(sid_sym, sidv);
original = true;
}
if (comp && (original || linklist()->Number()>1)) {
Creator* creator = unidraw->GetCatalog()->GetCreator();
OverlayScript* scripter = (OverlayScript*)
creator->Create(Combine(comp->GetClassId(), SCRIPT_VIEW));
if (scripter) {
scripter->SetSubject(comp);
if (scripted)
sbuf << ';';
else
scripted = true;
boolean status = scripter->Definition(sbuf);
delete scripter;
}
}
}
}
if (original || linklist()->Number()>1) {
if (!scripted)
sbuf << "print(\"Failed attempt to generate script for a PASTE_CMD\\n\" :err)";
sbuf.put('\0');
cout << sbuf.str() << "\n";
cout.flush();
}
/* first execute here */
#if 0
((ComEditor*)cmd->GetEditor())->GetComTerp()->run(sbuf.str());
((PasteCmd*)cmd)->executed(true);
#else
cmd->Execute();
#endif
/* then send everywhere else */
if (original || linklist()->Number()>1)
DistributeCmdString(sbuf.str(), linkget(from_sid));
}
break;
default:
sbuf << "print(\"Attempt to convert unknown command (id == %d) to interpretable script\\n\" " << cmd->GetClassId() << " :err)";
cmd->Execute();
break;
}
if (cmd->Reversible()) {
cmd->Log();
} else {
delete cmd;
}
OverlayScript::ptlist_parens(oldflag);
}
}
