kdecore Library API Documentation

kshortcut.cpp

00001 /*  This file is part of the KDE libraries
00002     Copyright (C) 2001,2002 Ellis Whitehead <ellis@kde.org>
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public License
00015     along with this library; see the file COPYING.LIB.  If not, write to
00016     the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00017     Boston, MA 02111-1307, USA.
00018 */
00019 
00020 #include "kshortcut.h"
00021 #include "kkeynative.h"
00022 #ifdef Q_WS_X11
00023 #include "kkeyserver_x11.h"
00024 #endif
00025 
00026 #include <qevent.h>
00027 #include <qstringlist.h>
00028 
00029 #include <kdebug.h>
00030 #include <kglobal.h>
00031 #include <klocale.h>
00032 #include <ksimpleconfig.h>
00033 
00034 //----------------------------------------------------
00035 
00036 static KKey* g_pspec = 0;
00037 static KKeySequence* g_pseq = 0;
00038 static KShortcut* g_pcut = 0;
00039 
00040 //----------------------------------------------------
00041 // KKey
00042 //----------------------------------------------------
00043 
00044 KKey::KKey()                          { clear(); }
00045 KKey::KKey( uint key, uint modFlags ) { init( key, modFlags ); }
00046 KKey::KKey( int keyQt )               { init( keyQt ); }
00047 KKey::KKey( const QKeySequence& seq ) { init( seq ); }
00048 KKey::KKey( const QKeyEvent* pEvent ) { init( pEvent ); }
00049 KKey::KKey( const KKey& key )         { init( key ); }
00050 KKey::KKey( const QString& sKey )     { init( sKey ); }
00051 
00052 KKey::~KKey()
00053 {
00054 }
00055 
00056 void KKey::clear()
00057 {
00058     m_sym = 0;
00059     m_mod = 0;
00060 }
00061 
00062 bool KKey::init( uint key, uint modFlags )
00063 {
00064     m_sym = key;
00065     m_mod = modFlags;
00066     return true;
00067 }
00068 
00069 bool KKey::init( int keyQt )
00070 {
00071     //KKeyServer::Sym sym;
00072 
00073     //if( sym.initQt( keyQt )
00074     if( KKeyServer::keyQtToSym( keyQt, m_sym )
00075         && KKeyServer::keyQtToMod( keyQt, m_mod ) )
00076         return true;
00077     else {
00078         m_sym = 0;
00079         m_mod = 0;
00080         return false;
00081     }
00082 }
00083 
00084 bool KKey::init( const QKeySequence& key )
00085 {
00086     // TODO: if key.count() > 1, should we return failure?
00087     return init( (int) key );
00088 }
00089 
00090 bool KKey::init( const QKeyEvent* pEvent )
00091 {
00092     int keyQt = pEvent->key();
00093     if( pEvent->state() & Qt::ShiftButton )   keyQt |= Qt::SHIFT;
00094     if( pEvent->state() & Qt::ControlButton ) keyQt |= Qt::CTRL;
00095     if( pEvent->state() & Qt::AltButton )     keyQt |= Qt::ALT;
00096     return init( keyQt );
00097 }
00098 
00099 bool KKey::init( const KKey& key )
00100 {
00101     m_sym = key.m_sym;
00102     m_mod = key.m_mod;
00103     return true;
00104 }
00105 
00106 bool KKey::init( const QString& sSpec )
00107 {
00108     clear();
00109 
00110     QString sKey = sSpec.stripWhiteSpace();
00111     if( sKey.startsWith( "default(" ) && sKey.endsWith( ")" ) )
00112         sKey = sKey.mid( 8, sKey.length() - 9 );
00113     // i.e., "Ctrl++" = "Ctrl+Plus"
00114     if( sKey.endsWith( "++" ) )
00115         sKey = sKey.left( sKey.length() - 1 ) + "plus";
00116     QStringList rgs = QStringList::split( '+', sKey, true );
00117 
00118     uint i;
00119     // Check for modifier keys first.
00120     for( i = 0; i < rgs.size(); i++ ) {
00121         QString s = rgs[i].lower();
00122         if( s == "shift" )     m_mod |= KKey::SHIFT;
00123         else if( s == "ctrl" ) m_mod |= KKey::CTRL;
00124         else if( s == "alt" )  m_mod |= KKey::ALT;
00125         else if( s == "win" )  m_mod |= KKey::WIN;
00126         else if( s == "meta" ) m_mod |= KKey::WIN;
00127         else break;
00128     }
00129     // If there is one non-blank key left:
00130     if( (i == rgs.size() - 1 && !rgs[i].isEmpty()) ) {
00131         KKeyServer::Sym sym( rgs[i] );
00132         m_sym = sym.m_sym;
00133     }
00134 
00135     if( m_sym == 0 )
00136         m_mod = 0;
00137 
00138     kdDebug(125) << "KKey::init( \"" << sSpec << "\" ):"
00139         << " m_sym = " << QString::number(m_sym, 16)
00140         << ", m_mod = " << QString::number(m_mod, 16) << endl;
00141 
00142     return m_sym != 0;
00143 }
00144 
00145 bool KKey::isNull() const          { return m_sym == 0; }
00146 uint KKey::sym() const             { return m_sym; }
00147 uint KKey::modFlags() const        { return m_mod; }
00148 
00149 int KKey::compare( const KKey& spec ) const
00150 {
00151     if( m_sym != spec.m_sym )
00152         return m_sym - spec.m_sym;
00153     if( m_mod != spec.m_mod )
00154         return m_mod - spec.m_mod;
00155     return 0;
00156 }
00157 
00158 int KKey::keyCodeQt() const
00159 {
00160     return KKeyNative( *this ).keyCodeQt();
00161 }
00162 
00163 QString KKey::toString() const
00164 {
00165     QString s;
00166 
00167     s = KKeyServer::modToStringUser( m_mod );
00168     if( !s.isEmpty() )
00169         s += '+';
00170     s += KKeyServer::Sym(m_sym).toString();
00171 
00172     return s;
00173 }
00174 
00175 QString KKey::toStringInternal() const
00176 {
00177     //kdDebug(125) << "KKey::toStringInternal(): this = " << this
00178     //  << " mod = " << QString::number(m_mod, 16)
00179     //  << " key = " << QString::number(m_sym, 16) << endl;
00180     QString s;
00181 
00182     s = KKeyServer::modToStringInternal( m_mod );
00183     if( !s.isEmpty() )
00184         s += '+';
00185     s += KKeyServer::Sym(m_sym).toStringInternal();
00186     return s;
00187 }
00188 
00189 KKey& KKey::null()
00190 {
00191     if( !g_pspec )
00192         g_pspec = new KKey;
00193     if( !g_pspec->isNull() )
00194         g_pspec->clear();
00195     return *g_pspec;
00196 }
00197 
00198 QString KKey::modFlagLabel( ModFlag modFlag )
00199 {
00200     return KKeyServer::modToStringUser( modFlag );
00201 }
00202 
00203 //---------------------------------------------------------------------
00204 // KKeySequence
00205 //---------------------------------------------------------------------
00206 
00207 KKeySequence::KKeySequence()                          { clear(); }
00208 KKeySequence::KKeySequence( const QKeySequence& seq ) { init( seq ); }
00209 KKeySequence::KKeySequence( const KKey& key )         { init( key ); }
00210 KKeySequence::KKeySequence( const KKeySequence& seq ) { init( seq ); }
00211 KKeySequence::KKeySequence( const QString& s )        { init( s ); }
00212 
00213 KKeySequence::~KKeySequence()
00214 {
00215 }
00216 
00217 void KKeySequence::clear()
00218 {
00219     m_nKeys = 0;
00220     m_bTriggerOnRelease = false;
00221 }
00222 
00223 bool KKeySequence::init( const QKeySequence& seq )
00224 {
00225     clear();
00226 #if QT_VERSION >= 0x030100
00227     if( !seq.isEmpty() ) {
00228         for( uint i = 0; i < seq.count(); i++ ) {   
00229             m_rgvar[i].init( seq[i] );
00230             if( m_rgvar[i].isNull() )
00231                 return false;
00232         }
00233         m_nKeys = seq.count();
00234         m_bTriggerOnRelease = false;
00235     }
00236 #else // Qt 3.0.x
00237     if( seq ) {
00238         m_rgvar[ 0 ].init(  seq );
00239         if( !m_rgvar[ 0 ].isNull() ) {
00240             m_nKeys = 1;
00241             m_bTriggerOnRelease = false;
00242         }
00243     }
00244 #endif
00245     return true;
00246 }
00247 
00248 bool KKeySequence::init( const KKey& key )
00249 {
00250     if( !key.isNull() ) {
00251         m_nKeys = 1;
00252         m_rgvar[0].init( key );
00253         m_bTriggerOnRelease = false;
00254     } else
00255         clear();
00256     return true;
00257 }
00258 
00259 bool KKeySequence::init( const KKeySequence& seq )
00260 {
00261     m_bTriggerOnRelease = false;
00262     m_nKeys = seq.m_nKeys;
00263     for( uint i = 0; i < m_nKeys; i++ ) {
00264         if( seq.m_rgvar[i].isNull() ) {
00265             kdWarning(125) << "KKeySequence::init( seq ): key[" << i << "] is null." << endl;
00266             m_nKeys = 0;
00267             return false;
00268         }
00269         m_rgvar[i] = seq.m_rgvar[i];
00270     }
00271     return true;
00272 }
00273 
00274 bool KKeySequence::init( const QString& s )
00275 {
00276     m_bTriggerOnRelease = false;
00277     //kdDebug(125) << "KKeySequence::init( " << s << " )" << endl;
00278     QStringList rgs = QStringList::split( ',', s );
00279     if( s == "none" || rgs.size() == 0 ) {
00280         clear();
00281         return true;
00282     } else if( rgs.size() <= MAX_KEYS ) {
00283         m_nKeys = rgs.size();
00284         for( uint i = 0; i < m_nKeys; i++ ) {
00285             m_rgvar[i].init( KKey(rgs[i]) );
00286             //kdDebug(125) << "\t'" << rgs[i] << "' => " << m_rgvar[i].toStringInternal() << endl;
00287         }
00288         return true;
00289     } else {
00290         clear();
00291         return false;
00292     }
00293 }
00294 
00295 uint KKeySequence::count() const
00296 {
00297     return m_nKeys;
00298 }
00299 
00300 const KKey& KKeySequence::key( uint i ) const
00301 {
00302     if( i < m_nKeys )
00303         return m_rgvar[i];
00304     else
00305         return KKey::null();
00306 }
00307 
00308 bool KKeySequence::isTriggerOnRelease() const
00309     { return m_bTriggerOnRelease; }
00310 
00311 bool KKeySequence::setKey( uint iKey, const KKey& key )
00312 {
00313     if( iKey <= m_nKeys && iKey < MAX_KEYS ) {
00314         m_rgvar[iKey].init( key );
00315         if( iKey == m_nKeys )
00316             m_nKeys++;
00317         return true;
00318     } else
00319         return false;
00320 }
00321 
00322 bool KKeySequence::isNull() const
00323 {
00324     return m_nKeys == 0;
00325 }
00326 
00327 bool KKeySequence::startsWith( const KKeySequence& seq ) const
00328 {
00329     if( m_nKeys < seq.m_nKeys )
00330         return false;
00331 
00332     for( uint i = 0; i < seq.m_nKeys; i++ ) {
00333         if( m_rgvar[i] != seq.m_rgvar[i] )
00334             return false;
00335     }
00336 
00337     return true;
00338 }
00339 
00340 int KKeySequence::compare( const KKeySequence& seq ) const
00341 {
00342     for( uint i = 0; i < m_nKeys && i < seq.m_nKeys; i++ ) {
00343         int ret = m_rgvar[i].compare( seq.m_rgvar[i] );
00344         if( ret != 0 )
00345             return ret;
00346     }
00347     if( m_nKeys != seq.m_nKeys )
00348         return m_nKeys - seq.m_nKeys;
00349     else
00350         return 0;
00351 }
00352 
00353 QKeySequence KKeySequence::qt() const
00354 {
00355     int k[4] = { 0, 0, 0, 0 };
00356     
00357     for( uint i = 0; i < count(); i++ )
00358         k[i] = KKeyNative(key(i)).keyCodeQt();
00359 #if QT_VERSION >= 0x030100
00360     QKeySequence seq( k[0], k[1], k[2], k[3] );
00361 #else // Qt-3.0.x
00362     QKeySequence seq;
00363     if(  count() == 1 )
00364         seq = KKeyNative( key( 0 ) ).keyCodeQt();
00365 #endif
00366     return seq;
00367 }
00368 
00369 int KKeySequence::keyCodeQt() const
00370 {
00371     return (count() == 1) ? KKeyNative(key(0)).keyCodeQt() : 0;
00372 }
00373 
00374 QString KKeySequence::toString() const
00375 {
00376     if( m_nKeys < 1 ) return QString::null;
00377 
00378     QString s;
00379     s = m_rgvar[0].toString();
00380     for( uint i = 1; i < m_nKeys; i++ ) {
00381         s += ",";
00382         s += m_rgvar[i].toString();
00383     }
00384 
00385     return s;
00386 }
00387 
00388 QString KKeySequence::toStringInternal() const
00389 {
00390     if( m_nKeys < 1 ) return QString::null;
00391 
00392     QString s;
00393     s = m_rgvar[0].toStringInternal();
00394     for( uint i = 1; i < m_nKeys; i++ ) {
00395         s += ",";
00396         s += m_rgvar[i].toStringInternal();
00397     }
00398 
00399     return s;
00400 }
00401 
00402 KKeySequence& KKeySequence::null()
00403 {
00404     if( !g_pseq )
00405         g_pseq = new KKeySequence;
00406     if( !g_pseq->isNull() )
00407         g_pseq->clear();
00408     return *g_pseq;
00409 }
00410 
00411 //---------------------------------------------------------------------
00412 // KShortcut
00413 //---------------------------------------------------------------------
00414 
00415 KShortcut::KShortcut()                            { clear(); }
00416 KShortcut::KShortcut( int keyQt )                 { init( keyQt ); }
00417 KShortcut::KShortcut( const QKeySequence& key )   { init( key ); }
00418 KShortcut::KShortcut( const KKey& key )           { init( key ); }
00419 KShortcut::KShortcut( const KKeySequence& seq )   { init( seq ); }
00420 KShortcut::KShortcut( const KShortcut& cut )      { init( cut ); }
00421 KShortcut::KShortcut( const char* ps )            { init( QString(ps) ); }
00422 KShortcut::KShortcut( const QString& s )          { init( s ); }
00423 
00424 KShortcut::~KShortcut()
00425 {
00426 }
00427 
00428 void KShortcut::clear()
00429 {
00430     m_nSeqs = 0;
00431 }
00432 
00433 bool KShortcut::init( int keyQt )
00434 {
00435     if( keyQt ) {
00436         m_nSeqs = 1;
00437         m_rgseq[0].init( QKeySequence(keyQt) );
00438     } else
00439         clear();
00440     return true;
00441 }
00442 
00443 bool KShortcut::init( const QKeySequence& key )
00444 {
00445     m_nSeqs = 1;
00446     m_rgseq[0].init( key );
00447     return true;
00448 }
00449 
00450 bool KShortcut::init( const KKey& spec )
00451 {
00452     m_nSeqs = 1;
00453     m_rgseq[0].init( spec );
00454     return true;
00455 }
00456 
00457 bool KShortcut::init( const KKeySequence& seq )
00458 {
00459     m_nSeqs = 1;
00460     m_rgseq[0] = seq;
00461     return true;
00462 }
00463 
00464 bool KShortcut::init( const KShortcut& cut )
00465 {
00466     m_nSeqs = cut.m_nSeqs;
00467     for( uint i = 0; i < m_nSeqs; i++ )
00468         m_rgseq[i] = cut.m_rgseq[i];
00469     return true;
00470 }
00471 
00472 bool KShortcut::init( const QString& s )
00473 {
00474     bool bRet = true;
00475     QStringList rgs = QStringList::split( ';', s );
00476 
00477     if( s == "none" || rgs.size() == 0 ) 
00478         clear();
00479     else if( rgs.size() <= MAX_SEQUENCES ) {
00480         m_nSeqs = rgs.size();
00481         for( uint i = 0; i < m_nSeqs; i++ ) {
00482             QString& sSeq = rgs[i];
00483             if( sSeq.startsWith( "default(" ) )
00484                 sSeq = sSeq.mid( 8, sSeq.length() - 9 );
00485             m_rgseq[i].init( sSeq );
00486             //kdDebug(125) << "*\t'" << sSeq << "' => " << m_rgseq[i].toStringInternal() << endl;
00487         }
00488     } else {
00489         clear();
00490         bRet = false;
00491     }
00492 
00493     if( !s.isEmpty() ) {
00494         QString sDebug;
00495         QTextStream os( &sDebug, IO_WriteOnly );
00496         os << "KShortcut::init( \"" << s << "\" ): ";
00497         for( uint i = 0; i < m_nSeqs; i++ ) {
00498             os << " m_rgseq[" << i << "]: ";
00499             KKeyServer::Variations vars;
00500             vars.init( m_rgseq[i].key(0), true );
00501             for( uint j = 0; j < vars.count(); j++ )
00502                 os << QString::number(vars.m_rgkey[j].keyCodeQt(),16) << ',';
00503         }
00504         kdDebug(125) << sDebug << endl;
00505     }
00506 
00507     return bRet;
00508 }
00509 
00510 uint KShortcut::count() const
00511 {
00512     return m_nSeqs;
00513 }
00514 
00515 const KKeySequence& KShortcut::seq( uint i ) const
00516 {
00517     return (i < m_nSeqs) ? m_rgseq[i] : KKeySequence::null();
00518 }
00519 
00520 int KShortcut::keyCodeQt() const
00521 {
00522     if( m_nSeqs >= 1 )
00523         return m_rgseq[0].keyCodeQt();
00524     return QKeySequence();
00525 }
00526 
00527 bool KShortcut::isNull() const
00528 {
00529     return m_nSeqs == 0;
00530 }
00531 
00532 int KShortcut::compare( const KShortcut& cut ) const
00533 {
00534     for( uint i = 0; i < m_nSeqs && i < cut.m_nSeqs; i++ ) {
00535         int ret = m_rgseq[i].compare( cut.m_rgseq[i] );
00536         if( ret != 0 )
00537             return ret;
00538     }
00539     return m_nSeqs - cut.m_nSeqs;
00540 }
00541 
00542 bool KShortcut::contains( const KKey& key ) const
00543 {
00544     return contains( KKeySequence(key) );
00545 }
00546 
00547 bool KShortcut::contains( const KKeyNative& keyNative ) const
00548 {
00549     KKey key = keyNative.key();
00550     key.simplify();
00551     
00552     for( uint i = 0; i < count(); i++ ) {
00553         if( !m_rgseq[i].isNull()
00554             && m_rgseq[i].count() == 1
00555             && m_rgseq[i].key(0) == key )
00556             return true;
00557     }
00558     return false;
00559 }
00560 
00561 bool KShortcut::contains( const KKeySequence& seq ) const
00562 {
00563     for( uint i = 0; i < count(); i++ ) {
00564         if( !m_rgseq[i].isNull() && m_rgseq[i] == seq )
00565             return true;
00566     }
00567     return false;
00568 }
00569 
00570 bool KShortcut::setSeq( uint iSeq, const KKeySequence& seq )
00571 {
00572     // TODO: check if seq is null, and act accordingly.
00573     if( iSeq <= m_nSeqs && iSeq < MAX_SEQUENCES ) {
00574         m_rgseq[iSeq] = seq;
00575         if( iSeq == m_nSeqs )
00576             m_nSeqs++;
00577         return true;
00578     } else
00579         return false;
00580 }
00581 
00582 bool KShortcut::append( const KKeySequence& seq )
00583 {
00584     if( m_nSeqs < MAX_SEQUENCES ) {
00585         if( !seq.isNull() ) {
00586             m_rgseq[m_nSeqs] = seq;
00587             m_nSeqs++;
00588         }
00589         return true;
00590     } else
00591         return false;
00592 }
00593 
00594 KShortcut::operator QKeySequence () const
00595 {
00596     if( count() >= 1 )
00597         return m_rgseq[0].qt();
00598     else
00599         return QKeySequence();
00600 }
00601 
00602 QString KShortcut::toString() const
00603 {
00604     QString s;
00605 
00606     for( uint i = 0; i < count(); i++ ) {
00607         s += m_rgseq[i].toString();
00608         if( i < count() - 1 )
00609             s += ';';
00610     }
00611 
00612     return s;
00613 }
00614 
00615 QString KShortcut::toStringInternal( const KShortcut* pcutDefault ) const
00616 {
00617     QString s;
00618 
00619     for( uint i = 0; i < count(); i++ ) {
00620         const KKeySequence& seq = m_rgseq[i];
00621         if( pcutDefault && i < pcutDefault->count() && seq == (*pcutDefault).seq(i) ) {
00622             s += "default(";
00623             s += seq.toStringInternal();
00624             s += ")";
00625         } else
00626             s += seq.toStringInternal();
00627         if( i < count() - 1 )
00628             s += ';';
00629     }
00630 
00631     return s;
00632 }
00633 
00634 KShortcut& KShortcut::null()
00635 {
00636     if( !g_pcut )
00637         g_pcut = new KShortcut;
00638     if( !g_pcut->isNull() )
00639         g_pcut->clear();
00640     return *g_pcut;
00641 }
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