diff --git a/engines/pegasus/MMShell/Notification/MMNotification.cpp b/engines/pegasus/MMShell/Notification/MMNotification.cpp new file mode 100755 index 000000000000..5bc082004dc5 --- /dev/null +++ b/engines/pegasus/MMShell/Notification/MMNotification.cpp @@ -0,0 +1,99 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * Additional copyright for this file: + * Copyright (C) 1995-1997 Presto Studios + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "pegasus/MMShell/MMConstants.h" +#include "pegasus/MMShell/Notification/MMNotification.h" +#include "pegasus/MMShell/Notification/MMNotificationManager.h" +#include "pegasus/MMShell/Notification/MMNotificationReceiver.h" + +namespace Pegasus { + +typedef tReceiverList::iterator tReceiverIterator; + +MMNotification::MMNotification(const tNotificationID id, MMNotificationManager *owner) : MMIDObject(id) { + fOwner = owner; + fCurrentFlags = kNoNotificationFlags; + if (fOwner) + fOwner->AddNotification(this); +} + +MMNotification::~MMNotification() { + for (tReceiverIterator it = fReceivers.begin(); it != fReceivers.end(); it++) + it->fReceiver->NewNotification(NULL); + + if (fOwner) + fOwner->RemoveNotification(this); +} + +// Selectively set or clear notificiation bits. +// Wherever mask is 0, leave existing bits untouched. +// Wherever mask is 1, set bit equivalent to flags. +void MMNotification::NotifyMe(MMNotificationReceiver* receiver, tNotificationFlags flags, tNotificationFlags mask) { + for (tReceiverIterator it = fReceivers.begin(); it != fReceivers.end(); it++) { + if (it->fReceiver == receiver) { + it->fMask = (it->fMask & ~mask) | (flags & mask); + receiver->NewNotification(this); + return; + } + } + + tReceiverEntry newEntry; + newEntry.fReceiver = receiver; + newEntry.fMask = flags; + fReceivers.push_back(newEntry); + + receiver->NewNotification(this); +} + +void MMNotification::CancelNotification(MMNotificationReceiver *receiver) { + for (tReceiverIterator it = fReceivers.begin(); it != fReceivers.end(); it++) + if (it->fReceiver == receiver) + fReceivers.erase(it); +} + +void MMNotification::SetNotificationFlags(tNotificationFlags flags, tNotificationFlags mask) { + fCurrentFlags = (fCurrentFlags & ~mask) | flags; +} + +void MMNotification::CheckReceivers() { + tNotificationFlags currentFlags = fCurrentFlags; + fCurrentFlags = kNoNotificationFlags; + + for (tReceiverIterator it = fReceivers.begin(); it != fReceivers.end(); it++) + if (it->fMask & currentFlags) + it->fReceiver->ReceiveNotification(this, currentFlags); +} + +// Receiver entries are equal if their receivers are equal. + +int operator==(const tReceiverEntry &entry1, const tReceiverEntry &entry2) { + return entry1.fReceiver == entry2.fReceiver; +} + +int operator!=(const tReceiverEntry &entry1, const tReceiverEntry &entry2) { + return entry1.fReceiver != entry2.fReceiver; +} + +} // End of namespace Pegasus diff --git a/engines/pegasus/MMShell/Notification/MMNotification.h b/engines/pegasus/MMShell/Notification/MMNotification.h new file mode 100755 index 000000000000..a47563329d85 --- /dev/null +++ b/engines/pegasus/MMShell/Notification/MMNotification.h @@ -0,0 +1,85 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * Additional copyright for this file: + * Copyright (C) 1995-1997 Presto Studios + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#ifndef PEGASUS_MMSHELL_NOTIFICATION_MMNOTIFICATION_H +#define PEGASUS_MMSHELL_NOTIFICATION_MMNOTIFICATION_H + +#include "common/list.h" + +#include "pegasus/MMShell/MMTypes.h" +#include "pegasus/MMShell/Utilities/MMIDObject.h" + +namespace Pegasus { + +class MMNotificationManager; +class MMNotificationReceiver; + +struct tReceiverEntry { + MMNotificationReceiver *fReceiver; + tNotificationFlags fMask; +}; + +int operator==(const tReceiverEntry &entry1, const tReceiverEntry &entry1); +int operator!=(const tReceiverEntry &entry1, const tReceiverEntry &entry1); + +typedef Common::List tReceiverList; + +/* + A notification can have 32 flags associated with it, which can be user-defined. +*/ + +class MMNotification : public MMIDObject { +friend class MMNotificationManager; + +public: + MMNotification(const tNotificationID id, MMNotificationManager *owner); + virtual ~MMNotification(); + + // NotifyMe will have this receiver notified when any of the specified notification + // flags are set. + // If there is already a notification set for this receiver, NotifyMe does a bitwise + // OR with the receiver's current notification flags. + + // Can selectively set or clear notification bits by using the flags and mask argument. + + void NotifyMe(MMNotificationReceiver*, tNotificationFlags flags, tNotificationFlags mask); + void CancelNotification(MMNotificationReceiver *receiver); + + void SetNotificationFlags(tNotificationFlags flags, tNotificationFlags mask); + tNotificationFlags GetNotificationFlags() { return fCurrentFlags; } + + void ClearNotificationFlags() { SetNotificationFlags(0, ~(tNotificationFlags)0); } + +protected: + void CheckReceivers(); + + MMNotificationManager *fOwner; + tReceiverList fReceivers; + tNotificationFlags fCurrentFlags; +}; + +} // End of namespace Pegasus + +#endif diff --git a/engines/pegasus/MMShell/Notification/MMNotificationManager.cpp b/engines/pegasus/MMShell/Notification/MMNotificationManager.cpp new file mode 100755 index 000000000000..806f5c4a8849 --- /dev/null +++ b/engines/pegasus/MMShell/Notification/MMNotificationManager.cpp @@ -0,0 +1,61 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * Additional copyright for this file: + * Copyright (C) 1995-1997 Presto Studios + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "pegasus/MMShell/MMConstants.h" +#include "pegasus/MMShell/Notification/MMNotificationManager.h" + +namespace Pegasus { + +typedef tNotificationList::iterator tNotificationIterator; + +MMNotificationManager::MMNotificationManager() { +} + +MMNotificationManager::~MMNotificationManager() { + DetachNotifications(); +} + +void MMNotificationManager::AddNotification(MMNotification *notification) { + fNotifications.push_back(notification); +} + +void MMNotificationManager::RemoveNotification(MMNotification *notification) { + for (tNotificationIterator it = fNotifications.begin(); it != fNotifications.end(); it++) + if ((*it) == notification) + fNotifications.erase(it); +} + +void MMNotificationManager::DetachNotifications() { + for (tNotificationIterator it = fNotifications.begin(); it != fNotifications.end(); it++) + (*it)->fOwner = 0; +} + +void MMNotificationManager::CheckNotifications() { + for (tNotificationIterator it = fNotifications.begin(); it != fNotifications.end(); it++) + if ((*it)->fCurrentFlags != kNoNotificationFlags) + (*it)->CheckReceivers(); +} + +} // End of namespace Pegasus diff --git a/engines/pegasus/MMShell/Notification/MMNotificationManager.h b/engines/pegasus/MMShell/Notification/MMNotificationManager.h new file mode 100755 index 000000000000..50af8940ec16 --- /dev/null +++ b/engines/pegasus/MMShell/Notification/MMNotificationManager.h @@ -0,0 +1,58 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * Additional copyright for this file: + * Copyright (C) 1995-1997 Presto Studios + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#ifndef PEGASUS_MMSHELL_NOTIFICATION_MMNOTIFICATIONMANAGER_H +#define PEGASUS_MMSHELL_NOTIFICATION_MMNOTIFICATIONMANAGER_H + +#include "common/list.h" + +#include "pegasus/MMShell/Notification/MMNotificationReceiver.h" + +namespace Pegasus { + +class MMNotification; + +typedef Common::List tNotificationList; + +class MMNotificationManager : public MMNotificationReceiver { +friend class MMNotification; + +public: + MMNotificationManager(); + virtual ~MMNotificationManager(); + + void CheckNotifications(); + +protected: + void AddNotification(MMNotification *notification); + void RemoveNotification(MMNotification *notification); + void DetachNotifications(); + + tNotificationList fNotifications; +}; + +} // End of namespace Pegasus + +#endif diff --git a/engines/pegasus/MMShell/Notification/MMNotificationReceiver.cpp b/engines/pegasus/MMShell/Notification/MMNotificationReceiver.cpp new file mode 100755 index 000000000000..41191b1b8e73 --- /dev/null +++ b/engines/pegasus/MMShell/Notification/MMNotificationReceiver.cpp @@ -0,0 +1,46 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * Additional copyright for this file: + * Copyright (C) 1995-1997 Presto Studios + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "pegasus/MMShell/Notification/MMNotificationReceiver.h" + +namespace Pegasus { + +MMNotificationReceiver::MMNotificationReceiver() { + fNotification = NULL; +} + +MMNotificationReceiver::~MMNotificationReceiver() { + if (fNotification) + fNotification->CancelNotification(this); +} + +void MMNotificationReceiver::ReceiveNotification(MMNotification *, const tNotificationFlags) { +} + +void MMNotificationReceiver::NewNotification(MMNotification *notification) { + fNotification = notification; +} + +} // End of namespace Pegasus diff --git a/engines/pegasus/MMShell/Notification/MMNotificationReceiver.h b/engines/pegasus/MMShell/Notification/MMNotificationReceiver.h new file mode 100755 index 000000000000..649d0cb804e1 --- /dev/null +++ b/engines/pegasus/MMShell/Notification/MMNotificationReceiver.h @@ -0,0 +1,53 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * Additional copyright for this file: + * Copyright (C) 1995-1997 Presto Studios + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#ifndef PEGASUS_MMSHELL_NOTIFICATION_MMNOTIFICATIONRECEIVER_H +#define PEGASUS_MMSHELL_NOTIFICATION_MMNOTIFICATIONRECEIVER_H + +#include "pegasus/MMShell/Notification/MMNotification.h" + +namespace Pegasus { + +class MMNotificationReceiver { +friend class MMNotification; + +public: + MMNotificationReceiver(); + virtual ~MMNotificationReceiver(); + +protected: + // ReceiveNotification is called automatically whenever a notification that this + // receiver depends on has its flags set + + virtual void ReceiveNotification(MMNotification *, const tNotificationFlags); + virtual void NewNotification(MMNotification *notification); + +private: + MMNotification *fNotification; +}; + +} // End of namespace Pegasus + +#endif diff --git a/engines/pegasus/module.mk b/engines/pegasus/module.mk index 1fdd471669c4..647ad55f0488 100644 --- a/engines/pegasus/module.mk +++ b/engines/pegasus/module.mk @@ -14,6 +14,9 @@ MODULE_OBJS = \ Game_Shell/CItem.o \ Game_Shell/CItemList.o \ MMShell/Base_Classes/MMFunctionPtr.o \ + MMShell/Notification/MMNotification.o \ + MMShell/Notification/MMNotificationManager.o \ + MMShell/Notification/MMNotificationReceiver.o \ MMShell/Sounds/MMSound.o \ MMShell/Utilities/MMResourceFile.o \ MMShell/Utilities/MMUtilities.o