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comparison qt/d1/qt/Signal.d @ 253:073b9153ed8a

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Rev. 264 done right. Problems: - classwizard segfaults on exit due to a bug in signals/slots or runtime. - hellogl doesn't compile with dmd2 due to a bug in the compiler backend
author maxter
date Sun, 30 Aug 2009 09:59:12 +0000
parents 7e589f525254
children 501128ac7a2c
comparison
equal deleted inserted replaced
252:37eed70de029 253:073b9153ed8a
98 { 98 {
99 if (a.length > 1) 99 if (a.length > 1)
100 memmove(a.ptr + dest, a.ptr + src, length * T.sizeof); 100 memmove(a.ptr + dest, a.ptr + src, length * T.sizeof);
101 } 101 }
102 102
103 enum SignalEventId
104 {
105 firstSlotConnected,
106 lastSlotDisconnected
107 }
103 108
104 public class SignalException : Exception 109 public class SignalException : Exception
105 { 110 {
106 this(char[] msg) 111 this(char[] msg)
107 { 112 {
366 static if (!strong) 371 static if (!strong)
367 cfree(data.ptr); 372 cfree(data.ptr);
368 } 373 }
369 } 374 }
370 375
371 public alias void delegate(int signalId) SignalEvent; 376 public alias void delegate(int signalId, SignalEventId event) SignalEvent;
372 377
373 struct SignalConnections 378 struct SignalConnections
374 { 379 {
375 bool isInUse; 380 bool isInUse;
376 381
479 public class SignalHandler 484 public class SignalHandler
480 { 485 {
481 SignalConnections[] connections; 486 SignalConnections[] connections;
482 Object owner; 487 Object owner;
483 int blocked; 488 int blocked;
484 489
485 // Called after a slot has been connected to an empty signal 490 SignalEvent signalEvent;
486 SignalEvent firstSlotConnected; 491
487 // Called after the last slot has been disconnected from a signal
488 SignalEvent lastSlotDisconnected;
489
490 alias SignalConnections.SlotType SlotType; 492 alias SignalConnections.SlotType SlotType;
491 alias SignalConnections.ReceiverType ReceiverType; 493 alias SignalConnections.ReceiverType ReceiverType;
492 494
493 public this(Object owner_) { 495 public this(Object owner_) {
494 owner = owner_; 496 owner = owner_;
506 { 508 {
507 if (signalId >= connections.length) 509 if (signalId >= connections.length)
508 connections.length = signalId + 1; 510 connections.length = signalId + 1;
509 auto slot = connections[signalId].addSlot!(slotListId)(SlotType!(slotListId)(receiver, invoker)); 511 auto slot = connections[signalId].addSlot!(slotListId)(SlotType!(slotListId)(receiver, invoker));
510 512
511 if (firstSlotConnected && connections[signalId].slotCount == 1) 513 if (signalEvent && connections[signalId].slotCount == 1)
512 firstSlotConnected(signalId); 514 signalEvent(signalId, SignalEventId.firstSlotConnected);
513 515
514 return slot; 516 return slot;
515 } 517 }
516 518
517 private void removeSlot(int slotListId)(int signalId, int slotId) 519 private void removeSlot(int slotListId)(int signalId, int slotId)
518 { 520 {
519 connections[signalId].removeSlot!(slotListId)(slotId); 521 connections[signalId].removeSlot!(slotListId)(slotId);
520 522
521 if (lastSlotDisconnected && !connections[signalId].slotCount) 523 if (signalEvent && !connections[signalId].slotCount)
522 lastSlotDisconnected(signalId); 524 signalEvent(signalId, SignalEventId.lastSlotDisconnected);
523 } 525 }
524 526
525 private SlotType!(slotListId)* addObjectSlot(int slotListId)(size_t signalId, Object obj, Dg receiver, 527 private SlotType!(slotListId)* addObjectSlot(int slotListId)(size_t signalId, Object obj, Dg receiver,
526 Dg invoker) 528 Dg invoker)
527 { 529 {