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/* This file is part of the KDE libraries
Copyright (C) 2001,2002 Ellis Whitehead <[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 as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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.
*/
#ifndef __TDESHORTCUT_H
#define __TDESHORTCUT_H
#include <tqkeysequence.h>
#include <tqstring.h>
#include "tdelibs_export.h"
class TQKeyEvent;
class KKeyNative;
/**
* A KKey object represents a single key with possible modifiers
* (Shift, Ctrl, Alt, Win). It can represent both keys which are
* understood by Qt as well as those which are additionally supported
* by the underlying system (e.g. X11).
* @see KKeyNative
* @see KKeySequence
* @see TDEShortcut
*/
class TDECORE_EXPORT KKey
{
public:
/**
* The number of flags.
* @see ModFlag
*/
enum { MOD_FLAG_COUNT = 4 };
enum { QtWIN = (TQt::META) };
/**
* Flags to represent the modifiers. You can combine modifiers
* by ORing them.
*/
enum ModFlag {
SHIFT = 0x01,
CTRL = 0x02,
ALT = 0x04,
WIN = 0x08
};
/**
* Creates a new null KKey.
* @see clear()
* @see isNull()
* @see null()
*/
KKey();
/**
* Creates a new key for the given Qt key code.
* @param keyQt the qt keycode
* @see TQt::Key
*/
KKey( int keyQt );
/**
* Creates a new key from the first key code of the given key sequence.
* @param keySeq the key sequence that contains the key
*/
KKey( const TQKeySequence& keySeq );
/**
* Extracts the key from the given key event.
* @param keyEvent the key event to get the key from
*/
KKey( const TQKeyEvent* keyEvent );
/**
* Copy constructor.
*/
KKey( const KKey& key );
/**
* Creates a new key from the given description. The form of the description
* is "[modifier+[modifier+]]+key", for example "e", "CTRL+q" or
* "CTRL+ALT+DEL". Allowed modifiers are "SHIFT", "CTRL", "ALT", "WIN" and
* "META". "WIN" and "META" are equivalent. Modifiers are not case-sensitive.
* @param key the description of the key
* @see KKeyServer::Sym::init()
*/
KKey( const TQString& key );
/**
* @internal
*/
KKey( uint key, uint mod );
~KKey();
// Initialization methods
/**
* Clears the key. The key is null after calling this function.
* @see isNull()
*/
void clear();
/**
* Initializes the key with the given Qt key code.
* @param keyQt the qt keycode
* @return true if successful, false otherwise
* @see TQt::Key
*/
bool init( int keyQt );
/**
* Initializes the key with the first key code of the given key sequence.
* @param keySeq the key sequence that contains the key
* @return true if successful, false otherwise
*/
bool init( const TQKeySequence& keySeq );
/**
* Initializes the key by extracting the code from the given key event.
* @param keyEvent the key event to get the key from
* @return true if successful, false otherwise
*/
bool init( const TQKeyEvent* keyEvent );
/**
* Copies the given key.
* @param key the key to copy
* @return true if successful, false otherwise
*/
bool init( const KKey& key );
/**
* Initializes the key with the given description. The form of the description
* is "[modifier+[modifier+]]+key", for example "e", "CTRL+q" or
* "CTRL+ALT+DEL". Allowed modifiers are "SHIFT", "CTRL", "ALT", "WIN" and
* "META". "WIN" and "META" are equivalent. Modifiers are not case-sensitive.
* @param key the description of the key
* @return true if successful, false otherwise
* @see KKeyServer::Sym::init()
*/
bool init( const TQString& key);
/**
* @internal
*/
bool init( uint key, uint mod );
/**
* Copies the key.
*/
KKey& operator =( const KKey& key )
{ init( key ); return *this; }
// Query methods.
/**
* Returns true if the key is null (after clear() or empty
* constructor).
* @return true if the key is null
* @see clear()
* @see null()
*/
bool isNull() const;
/**
* @internal
*/
uint sym() const;
/**
* @internal
*/
uint modFlags() const;
// Comparison Methods
/**
* Compares this key with the given KKey object. Returns a negative
* number if the given KKey is larger, 0 if they are equal and
* a positive number this KKey is larger. The returned value
* is the difference between the symbol or, if the symbols
* are equal, the difference between the encoded modifiers.
* @param key the key to compare with this key
* @return a negative number if the given KKey is larger, 0 if
* they are equal and a positive number this KKey is larger
*/
int compare( const KKey& key ) const;
/**
* Compares the symbol and modifiers of both keys.
* @see compare()
*/
bool operator == ( const KKey& key ) const
{ return compare( key ) == 0; }
/**
* Compares the symbol and modifiers of both keys.
* @see compare()
*/
bool operator != ( const KKey& key ) const
{ return compare( key ) != 0; }
/**
* Compares the symbol and modifiers of both keys.
* @see compare()
*/
bool operator < ( const KKey& key ) const
{ return compare( key ) < 0; }
// Conversion methods.
/**
* Returns the qt key code.
* @return the qt key code or 0 if there is no key set.
* @see TQt::Key
*/
int keyCodeQt() const;
/**
* Returns a human-readable representation of the key in the form
* "modifier+key". Note that the representation is localised,
* use toStringInternal() for cases like saving to configuration files.
* @return the string representation of the key
* @see toStringInternal()
*/
TQString toString() const;
/**
* Returns an untranslated text representation of the key in the form
* "modifier+key", suitable e.g. for saving in configuration files.
*/
TQString toStringInternal() const;
// Operation methods
/**
* @internal
*/
void simplify();
/**
* Returns a null key.
* @return the null key
* @see isNull()
* @see clear()
*/
static KKey& null();
/**
* Returns a user-readable representation of the given modifiers.
* @param f the modifiers to convert
* @return the string representation of the modifiers
*/
static TQString modFlagLabel( ModFlag f );
private:
/*
* Under X11, m_key will hold an X11 key symbol.
* For Qt/Embedded, it will hold the Qt key code.
*/
/**
* Returns the native key symbol value key. Under X11, this is the X
* keycode. Under Qt/Embedded, this is the Qt keycode.
* @see /usr/include/X11/keysymdef.h
* @see tqnamespace.h
*/
uint m_sym;
/**
* m_mod holds the
*/
uint m_mod;
private:
friend class KKeyNative;
};
/**
* A KKeySequence object holds a sequence of up to 4 keys.
* Ex: Ctrl+X,I
* @see KKey
* @see TDEShortcut
*/
class TDECORE_EXPORT KKeySequence
{
public:
/// Defines the maximum length of the key sequence
enum { MAX_KEYS = 4 };
/**
* Create a new null key sequence.
* @see isNull()
* @see null()
* @see clear()
*/
KKeySequence();
/**
* Copies the given qt key sequence.
* @param keySeq the qt key sequence to copy
*/
KKeySequence( const TQKeySequence& keySeq );
/**
* Create a new key sequence that only contains the given key.
* @param key the key to add
*/
KKeySequence( const KKey& key );
/**
* Create a new key sequence that only contains the given key.
* @param key the key to add
*/
KKeySequence( const KKeyNative& key );
/**
* Copies the given key sequence.
* @param keySeq the key sequence to copy
*/
KKeySequence( const KKeySequence& keySeq );
/**
* Creates a new key sequence that contains the given key sequence.
* The description consists of comma-separated keys as
* required by KKey::KKey(const TQString&).
* @param keySeq the description of the key
* @see KKeyServer::Sym::init()
* @see KKey::KKey(const TQString&)
*/
KKeySequence( const TQString& keySeq );
~KKeySequence();
/**
* Clears the key sequence. The key sequence is null after calling this
* function.
* @see isNull()
*/
void clear();
/**
* Copies the given qt key sequence over this key sequence.
* @param keySeq the qt key sequence to copy
* @return true if successful, false otherwise
*/
bool init( const TQKeySequence& keySeq );
/**
* Initializes the key sequence to only contain the given key.
* @param key the key to set
* @return true if successful, false otherwise
*/
bool init( const KKey& key );
/**
* Initializes the key sequence to only contain the given key.
* @param key the key to set
* @return true if successful, false otherwise
*/
bool init( const KKeyNative& key );
/**
* Copies the given key sequence over this key sequence.
* @param keySeq the key sequence to copy
* @return true if successful, false otherwise
*/
bool init( const KKeySequence& keySeq );
/**
* Initializes this key sequence to contain the given key sequence.
* The description consists of comma-separated keys as
* required by KKey::KKey(const TQString&).
* @param key the description of the key
* @return true if successful, false otherwise
* @see KKeyServer::Sym::init()
* @see KKey::KKey(const TQString&)
*/
bool init( const TQString& key );
/**
* Copy the given key sequence into this sequence.
*/
KKeySequence& operator =( const KKeySequence& seq )
{ init( seq ); return *this; }
/**
* Returns the number of key strokes of this sequence.
* @return the number of key strokes
* @see MAX_KEYS
*/
uint count() const;
/**
* Return the @p i'th key of this sequence, or a null key if there
* are less then i keys.
* @param i the key to retrieve
* @return the @p i'th key, or KKey::null() if there are less
* than i keys
* @see MAX_KEYS
*/
const KKey& key( uint i ) const;
/**
* @internal
*/
bool isTriggerOnRelease() const;
/**
* Sets the @p i'th key of the sequence. You can not introduce gaps
* in a sequence, so you must use an @p i <= count(). Also note that
* the maximum length of a key sequence is MAX_KEYS.
* @param i the position of the new key (<= count(), <= MAX_KEYS)
* @param key the key to set
* @return true if successful, false otherwise
*/
bool setKey( uint i, const KKey& key );
/**
* Returns true if the key sequence is null (after clear() or empty
* constructor).
* @return true if the key sequence is null
* @see clear()
* @see null()
*/
bool isNull() const;
/**
* Returns true if this key sequence begins with the given sequence.
* @param keySeq the key sequence to search
* @return true if this key sequence begins with the given sequence
*/
bool startsWith( const KKeySequence& keySeq ) const;
/**
* Compares this object with the given key sequence. Returns a negative
* number if the given KKeySequence is larger, 0 if they are equal and
* a positive number this KKeySequence is larger. Key sequences are
* compared by comparing the individual keys, starting from the beginning
* until an unequal key has been found. If a sequence contains more
* keys, it is considered larger.
* @param keySeq the key sequence to compare to
* @return a negative number if the given KKeySequence is larger, 0 if
* they are equal and a positive number this KKeySequence is larger
* @see KKey::sequence
*/
int compare( const KKeySequence& keySeq ) const;
/**
* Compares the keys of both sequences.
* @see compare()
*/
bool operator == ( const KKeySequence& seq ) const
{ return compare( seq ) == 0; }
/**
* Compares the keys of both sequences.
* @see compare()
*/
bool operator != ( const KKeySequence& seq ) const
{ return compare( seq ) != 0; }
/**
* Compares the keys of both sequences.
* @see compare()
*/
bool operator < ( const KKeySequence& seq ) const
{ return compare( seq ) < 0; }
// TODO: consider adding TQt::SequenceMatch matches(...) methods for TQKeySequence equivalence
/**
* Converts this key sequence to a TQKeySequence.
* @return the QKeySequence
*/
TQKeySequence qt() const;
/**
* Returns the qt key code of the first key.
* @return the qt key code of the first key
* @see TQt::Key
* @see KKey::keyCodeQt()
*/
int keyCodeQt() const;
/**
* Returns the key sequence as a number of key presses as
* returned by KKey::toString(), separated by commas.
* @return the string represenation of this key sequence
* @see KKey::toString()
*/
TQString toString() const;
/**
* @internal
*/
TQString toStringInternal() const;
/**
* Returns a null key sequence.
* @return the null key sequence
* @see isNull()
* @see clear()
*/
static KKeySequence& null();
protected:
uchar m_nKeys;
uchar m_bTriggerOnRelease;
// BCI: m_rgvar should be renamed to m_rgkey for KDE 4.0
KKey m_rgvar[MAX_KEYS];
private:
class KKeySequencePrivate* d;
friend class KKeyNative;
};
/**
* The TDEShortcut class is used to represent a keyboard shortcut to an action.
* A shortcut is normally a single key with modifiers, such as Ctrl+V.
* A TDEShortcut object may also contain an alternate key which will also
* activate the action it's associated to, as long as no other actions have
* defined that key as their primary key. Ex: Ctrl+V;Shift+Insert.
*
* This can be used to add additional accelerators to a TDEAction. For example,
* the below code binds the escape key to the close action.
*
* \code
* TDEAction *closeAction = KStdAction::close( this, TQT_SLOT( close() ), actionCollection() );
* TDEShortcut closeShortcut = closeAction->shortcut();
* closeShortcut.append( KKey(Key_Escape));
* closeAction->setShortcut(closeShortcut);
* \endcode
*
* Note that a shortcut cannot have more than 2 key combinations associated with it, so the above
* code would not do anything (and append() would return false) if the closeAction already had
* an key and alternate key.
*
*/
class TDECORE_EXPORT TDEShortcut
{
public:
/**
* The maximum number of key sequences that can be contained in
* a TDEShortcut.
*/
enum { MAX_SEQUENCES = 2 };
/**
* Creates a new null shortcut.
* @see null()
* @see isNull()
* @see clear()
*/
TDEShortcut();
/**
* Creates a new shortcut with the given Qt key code
* as the only key sequence.
* @param keyQt the qt keycode
* @see TQt::Key
*/
TDEShortcut( int keyQt );
/**
* Creates a new shortcut that contains only the given qt key
* sequence.
* @param keySeq the qt key sequence to add
*/
TDEShortcut( const TQKeySequence& keySeq );
/**
* Creates a new shortcut that contains only the given key
* in its only sequence.
* @param key the key to add
*/
TDEShortcut( const KKey& key );
/**
* Creates a new shortcut that contains only the given key
* sequence.
* @param keySeq the key sequence to add
*/
TDEShortcut( const KKeySequence& keySeq );
/**
* Copies the given shortcut.
* @param shortcut the shortcut to add
*/
TDEShortcut( const TDEShortcut& shortcut );
/**
* Creates a new key sequence that contains the given key sequence.
* The description consists of semicolon-separated keys as
* used in KKeySequence::KKeySequence(const TQString&).
* @param shortcut the description of the key
* @see KKeySequence::KKeySequence(const TQString&)
*/
TDEShortcut( const char* shortcut );
/**
* Creates a new key sequence that contains the given key sequence.
* The description consists of semicolon-separated keys as
* used in KKeySequence::KKeySequence(const TQString&).
* @param shortcut the description of the key
* @see KKeySequence::KKeySequence(const TQString&)
*/
TDEShortcut( const TQString& shortcut );
~TDEShortcut();
/**
* Clears the shortcut. The shortcut is null after calling this
* function.
* @see isNull()
*/
void clear();
/**
* Initializes the shortcut with the given Qt key code
* as the only key sequence.
* @param keyQt the qt keycode
* @see TQt::Key
*/
bool init( int keyQt );
/**
* Initializes the shortcut with the given qt key sequence.
* @param keySeq the qt key sequence to add
*/
bool init( const TQKeySequence& keySeq );
/**
* Initializes the shortcut with the given key as its only sequence.
* @param key the key to add
*/
bool init( const KKey& key );
/**
* Initializes the shortcut with the given qt key sequence.
* @param keySeq the qt key sequence to add
*/
bool init( const KKeySequence& keySeq );
/**
* Copies the given shortcut.
* @param shortcut the shortcut to add
*/
bool init( const TDEShortcut& shortcut );
/**
* Initializes the key sequence with the given key sequence.
* The description consists of semicolon-separated keys as
* used in KKeySequence::KKeySequence(const TQString&).
* @param shortcut the description of the key
* @see KKeySequence::KKeySequence(const TQString&)
*/
bool init( const TQString& shortcut );
/**
* Copies the given shortcut over this shortcut.
*/
TDEShortcut& operator =( const TDEShortcut& cut )
{ init( cut ); return *this; }
/**
* Returns the number of sequences that are in this
* shortcut.
* @return the number of sequences
* MAX_SEQUENCES
*/
uint count() const;
/**
* Returns the @p i'th key sequence of this shortcut.
* @param i the number of the key sequence to retrieve
* @return the @p i'th sequence or KKeySequence::null() if
* there are less than @p i key sequences
* MAX_SEQUENCES
*/
const KKeySequence& seq( uint i ) const;
/**
* Returns the key code of the first key sequence, or
* null if there is no first key sequence.
* @return the key code of the first sequence's first key
* @see TQt::Key
* @see KKeySequence::keyCodeQt()
*/
int keyCodeQt() const;
/**
* Returns true if the shortcut is null (after clear() or empty
* constructor).
* @return true if the shortcut is null
* @see clear()
* @see null()
*/
bool isNull() const;
/**
* Compares this object with the given shortcut. Returns a negative
* number if the given shortcut is larger, 0 if they are equal and
* a positive number this shortcut is larger. Shortcuts are
* compared by comparing the individual key sequences, starting from the
* beginning until an unequal key sequences has been found. If a shortcut
* contains more key sequences, it is considered larger.
* @param shortcut the shortcut to compare to
* @return a negative number if the given TDEShortcut is larger, 0 if
* they are equal and a positive number this TDEShortcut is larger
* @see KKey::compare()
* @see KKeyShortcut::compare()
*/
int compare( const TDEShortcut& shortcut ) const;
/**
* Compares the sequences of both shortcuts.
* @see compare()
*/
bool operator == ( const TDEShortcut& cut ) const
{ return compare( cut ) == 0; }
/**
* Compares the sequences of both shortcuts.
* @see compare()
*/
bool operator != ( const TDEShortcut& cut ) const
{ return compare( cut ) != 0; }
/**
* Compares the sequences of both shortcuts.
* @see compare()
*/
bool operator < ( const TDEShortcut& cut ) const
{ return compare( cut ) < 0; }
/**
* Checks whether this shortcut contains a sequence that starts
* with the given key.
* @param key the key to check
* @return true if a key sequence starts with the key
*/
bool contains( const KKey& key ) const;
/**
* Checks whether this shortcut contains a sequence that starts
* with the given key.
* @param key the key to check
* @return true if a key sequence starts with the key
*/
bool contains( const KKeyNative& key ) const;
/**
* Checks whether this shortcut contains the given sequence.
* @param keySeq the key sequence to check
* @return true if the shortcut has the given key sequence
*/
bool contains( const KKeySequence& keySeq ) const;
/**
* Sets the @p i 'th key sequence of the shortcut. You can not introduce
* gaps in the list of sequences, so you must use an @p i <= count().
* Also note that the maximum number of key sequences is MAX_SEQUENCES.
* @param i the position of the new key sequence(0 <= i <= count(), 0 <= i < MAX_SEQUENCES)
* @param keySeq the key sequence to set
* @return true if successful, false otherwise
*/
bool setSeq( uint i, const KKeySequence& keySeq );
/**
* Appends the given key sequence. This sets it as either the keysequence or
* the alternate keysequence. If the shortcut already has MAX_SEQUENCES
* sequences then this call does nothing, and returns false.
*
* @param keySeq the key sequence to add
* @return true if successful, false otherwise
* @see setSeq()
*/
bool append( const KKeySequence& keySeq );
/**
* Removes the given key sequence from this shortcut
* @param keySeq the key sequence to remove
* @since 3.3
*/
void remove( const KKeySequence& keySeq );
/**
* Appends the given key
* @param spec the key to add
* @return true if successful, false otherwise
* @see setSeq()
* @see MAX_SEQUENCES
* @since 3.2
*/
bool append( const KKey& spec );
/**
* Appends the sequences from the given shortcut.
* @param cut the shortcut to append
* @return true if successful, false otherwise
* @see MAX_SEQUENCES
* @since 3.2
*/
bool append( const TDEShortcut& cut );
/**
* Converts this shortcut to a key sequence. The first key sequence
* will be taken.
*/
operator TQKeySequence () const;
/**
* Returns a description of the shortcut as semicolon-separated
* ket sequences, as returned by KKeySequence::toString().
* @return the string represenation of this shortcut
* @see KKey::toString()
* @see KKeySequence::toString()
*/
TQString toString() const;
/**
* @internal
*/
TQString toStringInternal( const TDEShortcut* pcutDefault = 0 ) const;
/**
* Returns a null shortcut.
* @return the null shortcut
* @see isNull()
* @see clear()
*/
static TDEShortcut& null();
protected:
uint m_nSeqs;
KKeySequence m_rgseq[MAX_SEQUENCES];
private:
class TDEShortcutPrivate* d;
friend class KKeyNative;
#ifndef KDE_NO_COMPAT
public:
operator int () const { return keyCodeQt(); }
#endif
};
#endif // __TDESHORTCUT_H
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