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authorTimothy Pearson <[email protected]>2011-11-06 15:56:37 -0600
committerTimothy Pearson <[email protected]>2011-11-06 15:56:37 -0600
commit14c49c4f56792a934bcdc4efceebbd429d858571 (patch)
tree2f302410d5a5d678bf3ff10edead70d348be6644 /libtdegames/highscore/khighscore.h
parentab0981b9689e4d3ad88e9572bfa4b4a5e36c51ae (diff)
downloadtdegames-14c49c4f56792a934bcdc4efceebbd429d858571.tar.gz
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Actually move the kde files that were renamed in the last commit
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+/*
+ This file is part of the KDE games library
+ Copyright (C) 2001 Andreas Beckermann ([email protected])
+ Copyright (C) 2003 Nicolas Hadacek <[email protected]>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License version 2 as published by the Free Software Foundation.
+
+ This library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+/*
+ $Id$
+*/
+#ifndef __KHIGHSCORE_H__
+#define __KHIGHSCORE_H__
+
+#include <tqstring.h>
+#include <tqobject.h>
+#include <kdemacros.h>
+class KConfig;
+class KFileLock;
+class KRawConfig;
+class KHighscorePrivate;
+
+/**
+ * @short Class for managing highscore tables
+ *
+ * This is the KDE class for saving and reading highscore tables. It offers the
+ * possibility for system-wide highscore tables (configure with e.g.
+ * --enable-highscore-dir=/var/games) and a theoretically unlimited number of
+ * entries.
+ *
+ * You can specify different "keys" for an entry - just like the KConfig
+ * keys. But it will be prefixed with the number of the entry. For example you
+ * will probably use something like this to save the name of the player on the
+ * top of the list (ie the winner):
+ * \code
+ * highscore->writeEntry(1, "name", myPlayer->name());
+ * \endcode
+ * Note that it doesn't really matter if you use "0" or "1" as the first entry
+ * of the list as long as your program always uses the same for the first
+ * entry. I recommend to use "1", as several convenience methods use this.
+ *
+ * You can also specify different groups using setHighscoreGroup. Just
+ * like the keys mentioned above the groups behave like groups in KConfig
+ * but are prefixed with "KHighscore_". The default group is just "KHighscore".
+ * You might use this e.g. to create different highscore tables like
+ * \code
+ * table->setHighscoreGroup("Easy");
+ * // write the highscores for level "easy" to the table
+ * writeEasyHighscores(table);
+ *
+ * table->setHighscore("Player_1");
+ * // write player specific highscores to the table
+ * writePlayerHighscores(table);
+ * \endcode
+ * As you can see above you can also use this to write the highscores of a
+ * single player, so the "best times" of a player. To write highscores for a
+ * specific player in a specific level you will have to use a more complex way:
+ * \code
+ * TQString group = TQString("%1_%2").tqarg(player).tqarg(level);
+ * table->setGroup(group);
+ * writeHighscore(table, player, level);
+ * \endcode
+ *
+ * Also note that you MUST NOT mark the key or the group for translation! I.e.
+ * don't use i18n() for the keys or groups! Here is the code to read the above
+ * written entry:
+ * \code
+ * TQString firstName = highscore->readEntry(0, "name");
+ * \endcode
+ * Easy, what?
+ * @author Andreas Beckermann <[email protected]>
+ **/
+class KDE_EXPORT KHighscore : public TQObject
+{
+ Q_OBJECT
+ TQ_OBJECT
+public:
+ /** @obsolete
+ * Constructor. The highscore file is forced to be local to support
+ * games using the old behaviour.
+ */
+ KHighscore(TQObject* parent = 0);
+
+ /**
+ * Constructor.
+ *
+ * @param forceLocal if true, the local highscore file is used even
+ * when the configuration has been set to use a system-wide file. This
+ * is convenient for converting highscores from legacy applications.
+ * @param parent parent widget for this widget
+ * @since 3.2
+ */
+ KHighscore(bool forceLocal, TQObject *parent);
+
+ /**
+ * Read the current state of the highscore file. Remember that when
+ * it's not locked for writing, this file can change at any time.
+ * (This method is only useful for a system-wide highscore file).
+ * @since 3.2
+ */
+ void readCurrentConfig();
+
+ /** @since 3.2
+ * This method open the system-wide highscore file using the effective
+ * group id of the game executable (which should be "games"). The
+ * effective group id is completely dropped afterwards.
+ *
+ * Note: this method should be called in main() before creating a
+ * KApplication and doing anything else (KApplication checks that the
+ * program is not suid/sgid and will exit the program for security
+ * reason if it is the case).
+ */
+ static void init(const char *appname);
+
+ /** @since 3.2
+ * Lock the system-wide highscore file for writing (does nothing and
+ * return true if the local file is used).
+ * You should perform writing without GUI interaction to avoid
+ * blocking and don't forget to unlock the file as soon as possible
+ * with writeAndUnlock().
+ *
+ * If the config file cannot be locked,
+ * the method waits for 1 second and, if it failed again, displays
+ * a message box asking for retry or cancel.
+ * @param widget used as the parent of the message box.
+ *
+ * @return false on error or if the config file is locked by another
+ * process. In such case, the config stays read-only.
+ */
+ bool lockForWriting(TQWidget *widget = 0);
+
+ /**
+ * Effectively write and unlock the system-wide highscore file
+ * (@see lockForWriting).
+ * If using a local highscore file, it will sync the config.
+ * @since 3.2
+ */
+ void writeAndUnlock();
+
+ /**
+ * @return true if the highscore file is locked or if a local
+ * file is used.
+ * @since 3.2
+ */
+ bool isLocked() const;
+
+ /**
+ * Destructor.
+ * If necessary, write and unlock the highscore file.
+ */
+ ~KHighscore();
+
+ /**
+ * @param entry The number of the entry / the placing of the player
+ * @param key A key for this entry. E.g. "name" for the name of the
+ * player. Nearly the same as the usual keys in KConfig - but they
+ * are prefixed with the entry number
+ * @param value The value of this entry
+ **/
+ void writeEntry(int entry, const TQString& key, const TQString& value);
+
+ /**
+ * This is an overloaded member function, provided for convenience.
+ * It differs from the above function only in what argument(s) it accepts.
+ **/
+ void writeEntry(int entry, const TQString& key, int value);
+
+ /**
+ * This is an overloaded member function, provided for convenience.
+ * It differs from the above function only in what argument(s) it accepts.
+ * See KConfigBase documentation for allowed TQVariant::Type.
+ **/
+ void writeEntry(int entry, const TQString& key, const TQVariant &value);
+
+ /**
+ * Reads an entry from the highscore table.
+ * @param entry The number of the entry / the placing to be read
+ * @param key The key of the entry. E.g. "name" for the name of the
+ * player. Nearly the same as the usual keys in KConfig - but they
+ * are prefixed with the entry number
+ * @param pDefault This will be used as default value if the key+pair
+ * entry can't be found.
+ * @return The value of this entry+key pair or pDefault if the entry+key
+ * pair doesn't exist
+ **/
+ TQString readEntry(int entry, const TQString& key, const TQString& pDefault = TQString()) const;
+
+ /**
+ * Read a numeric value.
+ * @param entry The number of the entry / the placing to be read
+ * @param key The key of the entry. E.g. "name" for the name of the
+ * player. Nearly the same as the usual keys in KConfig - but they
+ * are prefixed with the entry number
+ * @param pDefault This will be used as default value if the key+pair
+ * entry can't be found.
+ * @return The value of this entry+key pair or pDefault if the entry+key
+ * pair doesn't exist
+ **/
+ int readNumEntry(int entry, const TQString& key, int pDefault = -1) const;
+
+ /**
+ * Read a TQVariant entry.
+ * See KConfigBase documentation for allowed TQVariant::Type.
+ *
+ * @return the value of this entry+key pair or pDefault if the entry+key
+ * pair doesn't exist or
+ */
+ TQVariant readPropertyEntry(int entry, const TQString &key, const TQVariant &pDefault) const;
+
+ /**
+ * @return True if the highscore table conatins the entry/key pair,
+ * otherwise false
+ **/
+ bool hasEntry(int entry, const TQString& key) const;
+
+ /**
+ * Reads a list of entries from the highscore table starting at 1 until
+ * lastEntry. If an entry between those numbers doesn't exist the
+ * function aborts reading even if after the missing entry is an
+ * existing one. The first entry of the list is the first placing, the
+ * last on is the last placing.
+ * @return A list of the entries of this key. You could also call
+ * readEntry(i, key) where i is from 1 to 20. Note that this function
+ * depends on "1" as the first entry!
+ * @param key The key of the entry. E.g. "name" for the name of the
+ * player. Nearly the same as the usual keys in KConfig - but they
+ * are prefixed with the entry number
+ * @param lastEntry the last entry which will be includes into the list.
+ * 1 will include a list with maximal 1 entry - 20 a list with maximal
+ * 20 entries. If lastEntry is <= 0 then rading is only stopped when when an
+ * entry does not exist.
+ **/
+ TQStringList readList(const TQString& key, int lastEntry = 20) const;
+
+ /**
+ * Writes a list of entries to the highscore table.
+ *
+ * The first entry is prefixed with "1". Using this method is a short
+ * way of calling writeEntry(i, key, list[i]) from i = 1 to
+ * list.count()
+ * @param key A key for the entry. E.g. "name" for the name of the
+ * player. Nearly the same as the usual keys in KConfig - but they
+ * are prefixed with the entry number
+ * @param list The list of values
+ **/
+ void writeList(const TQString& key, const TQStringList& list);
+
+ /**
+ * @return Whether a highscore table exists. You can use this
+ * function to indicate whether KHighscore created a highscore table
+ * before and - if not - read your old (non-KHighscore) table instead.
+ * This way you can safely read an old table and save it using
+ * KHighscore without losing any data
+ **/
+ bool hasTable() const;
+
+ /** @obsolete
+ * This does the same as writeAndUnlock().
+ */
+ void sync();
+
+ /**
+ * Set the new highscore group. The group is being prefixed with
+ * "KHighscore_" in the table.
+ * @param groupname The new groupname. E.g. use "easy" for the easy
+ * level of your game. If you use TQString() (the default) the
+ * default group is used.
+ **/
+ void setHighscoreGroup(const TQString& groupname = TQString());
+
+ /**
+ * @return The currently used group. This doesn't contain the prefix
+ * ("KHighscore_") but the same as setHighscoreGroup uses. The
+ * default is TQString()
+ **/
+ const TQString& highscoreGroup() const;
+
+protected:
+ /**
+ * @return A groupname to be used in KConfig. Used internally to
+ * prefix the value from highscoreGroup() with "KHighscore_"
+ **/
+ TQString group() const;
+
+ /**
+ * @return A pointer to the KConfig object to be used. This is
+ * either kapp->config() (default) or a KSimpleConfig object for
+ * a system-wide highscore file.
+ **/
+ KConfig* config() const;
+
+ void init(bool forceLocal);
+
+private:
+ KHighscorePrivate* d;
+
+ static KFileLock *_lock; // lock on system-wide highscore file
+ static KRawConfig *_config; // config for system-wide highscore file
+};
+
+#endif