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comparison qt/d2/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 cf6a4cd0e3f2
comparison
equal deleted inserted replaced
252:37eed70de029 253:073b9153ed8a
69 { 69 {
70 if (a.length > 1) 70 if (a.length > 1)
71 memmove(a.ptr + dest, a.ptr + src, length * T.sizeof); 71 memmove(a.ptr + dest, a.ptr + src, length * T.sizeof);
72 } 72 }
73 73
74 enum SignalEventId
75 {
76 firstSlotConnected,
77 lastSlotDisconnected
78 }
74 79
75 public class SignalException : Exception 80 public class SignalException : Exception
76 { 81 {
77 this(string msg) 82 this(string msg)
78 { 83 {
329 static if (!strong) 334 static if (!strong)
330 cfree(data.ptr); 335 cfree(data.ptr);
331 } 336 }
332 } 337 }
333 338
334 public alias void delegate(int signalId) SignalEvent; 339 public alias void delegate(int signalId, SignalEventId event) SignalEvent;
335 340
336 struct SignalConnections 341 struct SignalConnections
337 { 342 {
338 bool isInUse; 343 bool isInUse;
339 344
442 public class SignalHandler 447 public class SignalHandler
443 { 448 {
444 SignalConnections[] connections; 449 SignalConnections[] connections;
445 Object owner; 450 Object owner;
446 int blocked; 451 int blocked;
447 452
448 // Called after a slot has been connected to an empty signal 453 SignalEvent signalEvent;
449 SignalEvent firstSlotConnected; 454
450 // Called after the last slot has been disconnected from a signal
451 SignalEvent lastSlotDisconnected;
452
453 alias SignalConnections.SlotType SlotType; 455 alias SignalConnections.SlotType SlotType;
454 alias SignalConnections.ReceiverType ReceiverType; 456 alias SignalConnections.ReceiverType ReceiverType;
455 457
456 public this(Object owner_) { 458 public this(Object owner_) {
457 owner = owner_; 459 owner = owner_;
469 { 471 {
470 if (signalId >= connections.length) 472 if (signalId >= connections.length)
471 connections.length = signalId + 1; 473 connections.length = signalId + 1;
472 auto slot = connections[signalId].addSlot!(slotListId)(SlotType!(slotListId)(receiver, invoker)); 474 auto slot = connections[signalId].addSlot!(slotListId)(SlotType!(slotListId)(receiver, invoker));
473 475
474 if (firstSlotConnected && connections[signalId].slotCount == 1) 476 if (signalEvent && connections[signalId].slotCount == 1)
475 firstSlotConnected(signalId); 477 signalEvent(signalId, SignalEventId.firstSlotConnected);
476 478
477 return slot; 479 return slot;
478 } 480 }
479 481
480 private void removeSlot(int slotListId)(int signalId, int slotId) 482 private void removeSlot(int slotListId)(int signalId, int slotId)
481 { 483 {
482 connections[signalId].removeSlot!(slotListId)(slotId); 484 connections[signalId].removeSlot!(slotListId)(slotId);
483 485
484 if (lastSlotDisconnected && !connections[signalId].slotCount) 486 if (signalEvent && !connections[signalId].slotCount)
485 lastSlotDisconnected(signalId); 487 signalEvent(signalId, SignalEventId.lastSlotDisconnected);
486 } 488 }
487 489
488 private SlotType!(slotListId)* addObjectSlot(int slotListId)(size_t signalId, Object obj, Dg receiver, 490 private SlotType!(slotListId)* addObjectSlot(int slotListId)(size_t signalId, Object obj, Dg receiver,
489 Dg invoker) 491 Dg invoker)
490 { 492 {