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00026 #include "katecodecompletion.h"
00027 #include "katecodecompletion.moc"
00028
00029 #include "katedocument.h"
00030 #include "kateview.h"
00031 #include "katerenderer.h"
00032 #include "kateconfig.h"
00033 #include "katefont.h"
00034
00035 #include <kdebug.h>
00036
00037 #include <qwhatsthis.h>
00038 #include <qvbox.h>
00039 #include <qlistbox.h>
00040 #include <qtimer.h>
00041 #include <qtooltip.h>
00042 #include <qapplication.h>
00043 #include <qsizegrip.h>
00044 #include <qfontmetrics.h>
00045 #include <qlayout.h>
00046 #include <qregexp.h>
00047
00054 class KateCCListBox : public QListBox
00055 {
00056 public:
00061 KateCCListBox (QWidget* parent = 0, const char* name = 0, WFlags f = 0):QListBox(parent, name, f)
00062 {
00063 }
00064
00065 QSize sizeHint() const
00066 {
00067 int count = this->count();
00068 int height = 20;
00069 int tmpwidth = 8;
00070
00071 if (count > 0)
00072 if(count < 11)
00073 height = count * itemHeight(0);
00074 else {
00075 height = 10 * itemHeight(0);
00076 tmpwidth += verticalScrollBar()->width();
00077 }
00078
00079 int maxcount = 0, tmpcount = 0;
00080 for (int i = 0; i < count; ++i)
00081 if ( (tmpcount = fontMetrics().width(text(i)) ) > maxcount)
00082 maxcount = tmpcount;
00083
00084 if (maxcount > QApplication::desktop()->width()){
00085 tmpwidth = QApplication::desktop()->width() - 5;
00086 height += horizontalScrollBar()->height();
00087 } else
00088 tmpwidth += maxcount;
00089 return QSize(tmpwidth,height);
00090
00091 }
00092 };
00093
00094 class KateCompletionItem : public QListBoxText
00095 {
00096 public:
00097 KateCompletionItem( QListBox* lb, KTextEditor::CompletionEntry entry )
00098 : QListBoxText( lb )
00099 , m_entry( entry )
00100 {
00101 if( entry.postfix == "()" ) {
00102 setText( entry.prefix + " " + entry.text + entry.postfix );
00103 } else {
00104 setText( entry.prefix + " " + entry.text + " " + entry.postfix);
00105 }
00106 }
00107
00108 KTextEditor::CompletionEntry m_entry;
00109 };
00110
00111
00112 KateCodeCompletion::KateCodeCompletion( KateView* view )
00113 : QObject( view, "Kate Code Completion" )
00114 , m_view( view )
00115 , m_commentLabel( 0 )
00116 {
00117 m_completionPopup = new QVBox( 0, 0, WType_Popup );
00118 m_completionPopup->setFrameStyle( QFrame::Box | QFrame::Plain );
00119 m_completionPopup->setLineWidth( 1 );
00120
00121 m_completionListBox = new KateCCListBox( m_completionPopup );
00122 m_completionListBox->setFrameStyle( QFrame::NoFrame );
00123 m_completionListBox->setCornerWidget( new QSizeGrip( m_completionListBox) );
00124 m_completionListBox->setFocusProxy( m_view->m_viewInternal );
00125
00126 m_completionListBox->installEventFilter( this );
00127
00128 m_completionPopup->resize(m_completionListBox->sizeHint() + QSize(2,2));
00129 m_completionPopup->installEventFilter( this );
00130 m_completionPopup->setFocusProxy( m_view->m_viewInternal );
00131
00132 m_pArgHint = new KateArgHint( m_view );
00133 connect( m_pArgHint, SIGNAL(argHintHidden()),
00134 this, SIGNAL(argHintHidden()) );
00135
00136 connect( m_view, SIGNAL(cursorPositionChanged()),
00137 this, SLOT(slotCursorPosChanged()) );
00138 }
00139
00140 bool KateCodeCompletion::codeCompletionVisible () {
00141 return m_completionPopup->isVisible();
00142 }
00143
00144 void KateCodeCompletion::showCompletionBox(
00145 QValueList<KTextEditor::CompletionEntry> complList, int offset, bool casesensitive )
00146 {
00147 kdDebug(13035) << "showCompletionBox " << endl;
00148
00149 m_caseSensitive = casesensitive;
00150 m_complList = complList;
00151 m_offset = offset;
00152 m_view->cursorPositionReal( &m_lineCursor, &m_colCursor );
00153 m_colCursor -= offset;
00154
00155 updateBox( true );
00156 }
00157
00158 bool KateCodeCompletion::eventFilter( QObject *o, QEvent *e )
00159 {
00160 if ( o != m_completionPopup &&
00161 o != m_completionListBox &&
00162 o != m_completionListBox->viewport() )
00163 return false;
00164
00165 if( e->type() == QEvent::FocusOut )
00166 {
00167 abortCompletion();
00168 m_view->setFocus();
00169 return false;
00170 }
00171
00172 if ( e->type() == QEvent::MouseButtonDblClick ) {
00173 doComplete();
00174 return false;
00175 }
00176
00177 if ( e->type() == QEvent::MouseButtonPress ) {
00178 QTimer::singleShot(0, this, SLOT(showComment()));
00179 return false;
00180 }
00181
00182 return false;
00183 }
00184
00185 void KateCodeCompletion::handleKey (QKeyEvent *e)
00186 {
00187
00188 if ((e->key() == Key_Up) && (m_completionListBox->currentItem() == 0))
00189 {
00190 abortCompletion();
00191 m_view->setFocus();
00192 return;
00193 }
00194
00195
00196 if( (e->key() == Key_Up) || (e->key() == Key_Down ) ||
00197 (e->key() == Key_Home ) || (e->key() == Key_End) ||
00198 (e->key() == Key_Prior) || (e->key() == Key_Next ))
00199 {
00200 QTimer::singleShot(0,this,SLOT(showComment()));
00201 QApplication::sendEvent( m_completionListBox, (QEvent*)e );
00202 return;
00203 }
00204
00205
00206 updateBox();
00207 }
00208
00209 void KateCodeCompletion::doComplete()
00210 {
00211 KateCompletionItem* item = static_cast<KateCompletionItem*>(
00212 m_completionListBox->item(m_completionListBox->currentItem()));
00213
00214 if( item == 0 )
00215 return;
00216
00217 QString text = item->m_entry.text;
00218 QString currentLine = m_view->currentTextLine();
00219 int len = m_view->cursorColumnReal() - m_colCursor;
00220 QString currentComplText = currentLine.mid(m_colCursor,len);
00221 QString add = text.mid(currentComplText.length());
00222 if( item->m_entry.postfix == "()" )
00223 add += "(";
00224
00225 emit filterInsertString(&(item->m_entry),&add);
00226 m_view->insertText(add);
00227
00228 complete( item->m_entry );
00229 m_view->setFocus();
00230 }
00231
00232 void KateCodeCompletion::abortCompletion()
00233 {
00234 m_completionPopup->hide();
00235 delete m_commentLabel;
00236 m_commentLabel = 0;
00237 emit completionAborted();
00238 }
00239
00240 void KateCodeCompletion::complete( KTextEditor::CompletionEntry entry )
00241 {
00242 m_completionPopup->hide();
00243 delete m_commentLabel;
00244 m_commentLabel = 0;
00245 emit completionDone( entry );
00246 emit completionDone();
00247 }
00248
00249 void KateCodeCompletion::updateBox( bool )
00250 {
00251 if( m_colCursor > m_view->cursorColumnReal() ) {
00252
00253 kdDebug(13035) << "Aborting Codecompletion after sendEvent" << endl;
00254 kdDebug(13035) << m_view->cursorColumnReal() << endl;
00255 abortCompletion();
00256 m_view->setFocus();
00257 return;
00258 }
00259
00260 m_completionListBox->clear();
00261
00262 QString currentLine = m_view->currentTextLine();
00263 int len = m_view->cursorColumnReal() - m_colCursor;
00264 QString currentComplText = currentLine.mid(m_colCursor,len);
00265
00266
00267
00268
00269
00270
00271
00272
00273 QValueList<KTextEditor::CompletionEntry>::Iterator it;
00274 if( m_caseSensitive ) {
00275 for( it = m_complList.begin(); it != m_complList.end(); ++it ) {
00276 if( (*it).text.startsWith(currentComplText) ) {
00277 new KateCompletionItem(m_completionListBox,*it);
00278 }
00279 }
00280 } else {
00281 currentComplText = currentComplText.upper();
00282 for( it = m_complList.begin(); it != m_complList.end(); ++it ) {
00283 if( (*it).text.upper().startsWith(currentComplText) ) {
00284 new KateCompletionItem(m_completionListBox,*it);
00285 }
00286 }
00287 }
00288
00289 if( m_completionListBox->count() == 0 ||
00290 ( m_completionListBox->count() == 1 &&
00291 currentComplText == m_completionListBox->text(0).stripWhiteSpace() ) ) {
00292 abortCompletion();
00293 m_view->setFocus();
00294 return;
00295 }
00296
00297 kdDebug(13035)<<"KateCodeCompletion::updateBox: Resizing widget"<<endl;
00298 m_completionPopup->resize(m_completionListBox->sizeHint() + QSize(2,2));
00299 QPoint p = m_view->mapToGlobal( m_view->cursorCoordinates() );
00300 int x = p.x();
00301 int y = p.y() ;
00302 if ( y + m_completionPopup->height() + m_view->renderer()->config()->fontMetrics( )->height() > QApplication::desktop()->height() )
00303 y -= (m_completionPopup->height() );
00304 else
00305 y += m_view->renderer()->config()->fontMetrics( )->height();
00306
00307 if (x + m_completionPopup->width() > QApplication::desktop()->width())
00308 x = QApplication::desktop()->width() - m_completionPopup->width();
00309
00310 m_completionPopup->move( QPoint(x,y) );
00311
00312 m_completionListBox->setCurrentItem( 0 );
00313 m_completionListBox->setSelected( 0, true );
00314 m_completionListBox->setFocus();
00315 m_completionPopup->show();
00316
00317 QTimer::singleShot(0,this,SLOT(showComment()));
00318 }
00319
00320 void KateCodeCompletion::showArgHint ( QStringList functionList, const QString& strWrapping, const QString& strDelimiter )
00321 {
00322 unsigned int line, col;
00323 m_view->cursorPositionReal( &line, &col );
00324 m_pArgHint->reset( line, col );
00325 m_pArgHint->setArgMarkInfos( strWrapping, strDelimiter );
00326
00327 int nNum = 0;
00328 for( QStringList::Iterator it = functionList.begin(); it != functionList.end(); it++ )
00329 {
00330 kdDebug(13035) << "Insert function text: " << *it << endl;
00331
00332 m_pArgHint->addFunction( nNum, ( *it ) );
00333
00334 nNum++;
00335 }
00336
00337 m_pArgHint->move(m_view->mapToGlobal(m_view->cursorCoordinates() + QPoint(0,m_view->renderer()->config()->fontMetrics( )->height())) );
00338 m_pArgHint->show();
00339 }
00340
00341 void KateCodeCompletion::slotCursorPosChanged()
00342 {
00343 m_pArgHint->cursorPositionChanged ( m_view, m_view->cursorLine(), m_view->cursorColumnReal() );
00344 }
00345
00346 void KateCodeCompletion::showComment()
00347 {
00348 if (!m_completionPopup->isVisible())
00349 return;
00350
00351 KateCompletionItem* item = static_cast<KateCompletionItem*>(m_completionListBox->item(m_completionListBox->currentItem()));
00352
00353 if( !item )
00354 return;
00355
00356 if( item->m_entry.comment.isEmpty() )
00357 return;
00358
00359 delete m_commentLabel;
00360 m_commentLabel = new KateCodeCompletionCommentLabel( 0, item->m_entry.comment );
00361 m_commentLabel->setFont(QToolTip::font());
00362 m_commentLabel->setPalette(QToolTip::palette());
00363
00364 QPoint rightPoint = m_completionPopup->mapToGlobal(QPoint(m_completionPopup->width(),0));
00365 QPoint leftPoint = m_completionPopup->mapToGlobal(QPoint(0,0));
00366 QRect screen = QApplication::desktop()->screenGeometry ( m_commentLabel );
00367 QPoint finalPoint;
00368 if (rightPoint.x()+m_commentLabel->width() > screen.x() + screen.width())
00369 finalPoint.setX(leftPoint.x()-m_commentLabel->width());
00370 else
00371 finalPoint.setX(rightPoint.x());
00372
00373 m_completionListBox->ensureCurrentVisible();
00374
00375 finalPoint.setY(
00376 m_completionListBox->viewport()->mapToGlobal(m_completionListBox->itemRect(
00377 m_completionListBox->item(m_completionListBox->currentItem())).topLeft()).y());
00378
00379 m_commentLabel->move(finalPoint);
00380 m_commentLabel->show();
00381 }
00382
00383 KateArgHint::KateArgHint( KateView* parent, const char* name )
00384 : QFrame( parent, name, WType_Popup )
00385 {
00386 setBackgroundColor( black );
00387 setPaletteForegroundColor( Qt::black );
00388
00389 labelDict.setAutoDelete( true );
00390 layout = new QVBoxLayout( this, 1, 2 );
00391 layout->setAutoAdd( true );
00392 editorView = parent;
00393
00394 m_markCurrentFunction = true;
00395
00396 setFocusPolicy( StrongFocus );
00397 setFocusProxy( parent );
00398
00399 reset( -1, -1 );
00400 }
00401
00402 KateArgHint::~KateArgHint()
00403 {
00404 }
00405
00406 void KateArgHint::setArgMarkInfos( const QString& wrapping, const QString& delimiter )
00407 {
00408 m_wrapping = wrapping;
00409 m_delimiter = delimiter;
00410 m_markCurrentFunction = true;
00411 }
00412
00413 void KateArgHint::reset( int line, int col )
00414 {
00415 m_functionMap.clear();
00416 m_currentFunction = -1;
00417 labelDict.clear();
00418
00419 m_currentLine = line;
00420 m_currentCol = col - 1;
00421 }
00422
00423 void KateArgHint::slotDone(bool completed)
00424 {
00425 hide();
00426
00427 m_currentLine = m_currentCol = -1;
00428
00429 emit argHintHidden();
00430 if (completed)
00431 emit argHintCompleted();
00432 else
00433 emit argHintAborted();
00434 }
00435
00436 void KateArgHint::cursorPositionChanged( KateView* view, int line, int col )
00437 {
00438 if( m_currentCol == -1 || m_currentLine == -1 ){
00439 slotDone(false);
00440 return;
00441 }
00442
00443 int nCountDelimiter = 0;
00444 int count = 0;
00445
00446 QString currentTextLine = view->doc()->textLine( line );
00447 QString text = currentTextLine.mid( m_currentCol, col - m_currentCol );
00448 QRegExp strconst_rx( "\"[^\"]*\"" );
00449 QRegExp chrconst_rx( "'[^']*'" );
00450
00451 text = text
00452 .replace( strconst_rx, "\"\"" )
00453 .replace( chrconst_rx, "''" );
00454
00455 int index = 0;
00456 while( index < (int)text.length() ){
00457 if( text[index] == m_wrapping[0] ){
00458 ++count;
00459 } else if( text[index] == m_wrapping[1] ){
00460 --count;
00461 } else if( count > 0 && text[index] == m_delimiter[0] ){
00462 ++nCountDelimiter;
00463 }
00464 ++index;
00465 }
00466
00467 if( (m_currentLine > 0 && m_currentLine != line) || (m_currentLine < col) || (count == 0) ){
00468 slotDone(count == 0);
00469 return;
00470 }
00471
00472
00473
00474 }
00475
00476 void KateArgHint::addFunction( int id, const QString& prot )
00477 {
00478 m_functionMap[ id ] = prot;
00479 QLabel* label = new QLabel( prot.stripWhiteSpace().simplifyWhiteSpace(), this );
00480 label->setBackgroundColor( QColor(255, 255, 238) );
00481 label->show();
00482 labelDict.insert( id, label );
00483
00484 if( m_currentFunction < 0 )
00485 setCurrentFunction( id );
00486 }
00487
00488 void KateArgHint::setCurrentFunction( int currentFunction )
00489 {
00490 if( m_currentFunction != currentFunction ){
00491
00492 if( currentFunction < 0 )
00493 currentFunction = (int)m_functionMap.size() - 1;
00494
00495 if( currentFunction > (int)m_functionMap.size()-1 )
00496 currentFunction = 0;
00497
00498 if( m_markCurrentFunction && m_currentFunction >= 0 ){
00499 QLabel* label = labelDict[ m_currentFunction ];
00500 label->setFont( font() );
00501 }
00502
00503 m_currentFunction = currentFunction;
00504
00505 if( m_markCurrentFunction ){
00506 QLabel* label = labelDict[ currentFunction ];
00507 QFont fnt( font() );
00508 fnt.setBold( true );
00509 label->setFont( fnt );
00510 }
00511
00512 adjustSize();
00513 }
00514 }
00515
00516 void KateArgHint::show()
00517 {
00518 QFrame::show();
00519 adjustSize();
00520 }
00521
00522 bool KateArgHint::eventFilter( QObject*, QEvent* e )
00523 {
00524 if( isVisible() && e->type() == QEvent::KeyPress ){
00525 QKeyEvent* ke = static_cast<QKeyEvent*>( e );
00526 if( (ke->state() & ControlButton) && ke->key() == Key_Left ){
00527 setCurrentFunction( currentFunction() - 1 );
00528 ke->accept();
00529 return true;
00530 } else if( ke->key() == Key_Escape ){
00531 slotDone(false);
00532 return false;
00533 } else if( (ke->state() & ControlButton) && ke->key() == Key_Right ){
00534 setCurrentFunction( currentFunction() + 1 );
00535 ke->accept();
00536 return true;
00537 }
00538 }
00539
00540 return false;
00541 }
00542
00543 void KateArgHint::adjustSize( )
00544 {
00545 QRect screen = QApplication::desktop()->screenGeometry( pos() );
00546
00547 QFrame::adjustSize();
00548 if( width() > screen.width() )
00549 resize( screen.width(), height() );
00550
00551 if( x() + width() > screen.width() )
00552 move( screen.width() - width(), y() );
00553 }
00554
00555