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source: code/branches/mac_osx/src/modules/notifications/NotificationQueue.h @ 8222

Last change on this file since 8222 was 7489, checked in by dafrick, 14 years ago

Mostly more documentation.

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1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Damian 'Mozork' Frick
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29/**
30    @file NotificationQueue.h
31    @brief Definition of the NotificationQueue class.
32    @ingroup Notifications
33*/
34
35#ifndef _NotificationOueue_H__
36#define _NotificationOueue_H__
37
38#include "notifications/NotificationsPrereqs.h"
39
40#include <ctime>
41#include <set>
42#include <string>
43#include <vector>
44
45#include "NotificationManager.h"
46
47#include "tools/interfaces/Tickable.h"
48#include "interfaces/NotificationListener.h"
49
50namespace orxonox // tolua_export
51{ // tolua_export
52
53    //! Container to allow easy handling.
54    struct NotificationContainer
55    {
56        Notification* notification; //!< The Notification displayed.
57        time_t time; //!< The time the Notification was sent and thus first displayed.
58    };
59
60    //! Struct to allow ordering of @ref orxonox::NotificationContainer "NotificationContainers".
61    struct NotificationContainerCompare {
62        bool operator() (const NotificationContainer* const & a, const NotificationContainer* const & b) const
63            { return a->time < b->time; } //!< Ordering by time.
64    };
65
66    /**
67    @brief
68        Displays @ref orxonox::Notification "Notifications" from specific senders.
69
70        There are quite some parameters that influence the behaviour of the NotificationQueue:
71        - @b name The name of the NotificationQueue. It needs to be unique.
72        - @b senders The senders that are targets of this NotificationQueue, i.e. the names of senders whose Notifications this NotificationQueue displays.
73        - @b size The size of the NotificationQueue, it specifies how many @ref orxonox::Notification "Notifications" are displayed at once at the most.
74        - @b displayTime The time a @ref orxonox::Notification "Notification" is displayed with this NotificationQueue.
75
76    @author
77        Damian 'Mozork' Frick
78    */
79    class _NotificationsExport NotificationQueue // tolua_export
80        : public Tickable, public NotificationListener
81    { // tolua_export
82
83        public:
84            NotificationQueue(const std::string& name, const std::string& senders = NotificationManager::ALL, unsigned int size = NotificationQueue::DEFAULT_SIZE, unsigned int displayTime = NotificationQueue::DEFAULT_DISPLAY_TIME);
85            virtual ~NotificationQueue();
86
87            //! Destroys the NotificationQueue.
88            void destroy(bool noGraphics = false); // tolua_export
89
90            virtual void tick(float dt); //!< To update from time to time.
91
92            void update(void); //!< Updates the NotificationQueue.
93            void update(Notification* notification, const std::time_t & time); //!< Updates the NotificationQueue by adding an new Notification.
94
95            // tolua_begin
96            /**
97            @brief Get the name of the NotificationQueue.
98            @return Returns the name.
99            */
100            inline const std::string& getName() const
101                { return this->name_; }
102
103            void setMaxSize(unsigned int size); //!< Sets the maximum number of displayed Notifications.
104            /**
105            @brief Returns the maximum number of Notifications displayed.
106            @return Returns maximum size.
107            */
108            inline unsigned int getMaxSize() const
109                { return this->maxSize_; }
110
111            void setDisplayTime(unsigned int time); //!< Sets the maximum number of seconds a Notification is displayed.
112            /**
113            @brief Returns the time interval the Notification is displayed.
114            @return Returns the display time.
115            */
116            inline unsigned int getDisplayTime() const
117                { return this->displayTime_; }
118            // tolua_end
119
120            /**
121            @brief Returns the current number of Notifications displayed.
122            @return Returns the size of the NotificationQueue.
123            */
124            inline unsigned int getSize() const
125                { return this->size_; }
126
127            /**
128            @brief Returns the targets of this NotificationQueue, reps. the senders which Notifications are displayed in this NotificationQueue.
129            @return Returns a set of strings holding the different targets.
130            */
131            inline const std::set<std::string> & getTargetsSet()
132                { return this->targets_; }
133
134            // tolua_begin
135            void setTargets(const std::string & targets); //!< Set the targets of this NotificationQueue.
136            const std::string& getTargets(void) const; //!< Returns a string consisting of the concatination of the targets.
137            // tolua_end
138
139        private:
140            static const unsigned int DEFAULT_SIZE = 5; //!< The default maximum number of Notifications displayed.
141            static const unsigned int DEFAULT_DISPLAY_TIME = 30; //!< The default display time.
142
143            std::string name_; //!< The name of the NotificationQueue.
144
145            unsigned int maxSize_; //!< The maximal number of Notifications displayed.
146            unsigned int size_; //!< The number of Notifications displayed.
147            unsigned int displayTime_; //!< The time a Notification is displayed.
148
149            bool registered_; //!< Helper variable to remember whether the NotificationQueue is registered already.
150
151            std::set<std::string> targets_; //!< The targets the NotificationQueue displays Notifications of.
152
153            std::multiset<NotificationContainer*, NotificationContainerCompare> ordering_; //!< The NotificationContainers ordered by the time they were registered.
154            std::vector<NotificationContainer*> notifications_; //!< The NotificationContainers in the order they were added to the NotificationQueue.
155
156            float tickTime_; //!< Helper variable, to not have to check for Notifications that have been displayed too long, every tick.
157            NotificationContainer timeLimit_; //!< Helper object to check against to determine whether Notifications have expired.
158
159            void create(void); //!< Creates the NotificationQueue in lua.
160
161            void setName(const std::string& name); //!< Sets the name of the NotificationQueue.
162
163            void push(Notification* notification, const std::time_t & time); //!< Adds (pushes) a Notification to the NotificationQueue.
164            void pop(void); //!< Removes (pops) the least recently added Notification form the NotificationQueue.
165            void remove(const std::multiset<NotificationContainer*, NotificationContainerCompare>::iterator& containerIterator); //!< Removes the Notification that is stored in the input NotificationContainer.
166
167            void clear(bool noGraphics = false); //!< Clears the NotificationQueue by removing all NotificationContainers.
168
169    }; // tolua_export
170
171} // tolua_export
172
173#endif /* _NotificationOverlay_H__ */
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