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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
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 if ( codeCompletionVisible() ) return;
00150
00151 m_caseSensitive = casesensitive;
00152 m_complList = complList;
00153 m_offset = offset;
00154 m_view->cursorPositionReal( &m_lineCursor, &m_colCursor );
00155 m_colCursor -= offset;
00156
00157 updateBox( true );
00158 }
00159
00160 bool KateCodeCompletion::eventFilter( QObject *o, QEvent *e )
00161 {
00162 if ( o != m_completionPopup &&
00163 o != m_completionListBox &&
00164 o != m_completionListBox->viewport() )
00165 return false;
00166
00167 if( e->type() == QEvent::Hide )
00168 {
00169 abortCompletion();
00170 return false;
00171 }
00172
00173 if ( e->type() == QEvent::MouseButtonDblClick ) {
00174 doComplete();
00175 return false;
00176 }
00177
00178 if ( e->type() == QEvent::MouseButtonPress ) {
00179 QTimer::singleShot(0, this, SLOT(showComment()));
00180 return false;
00181 }
00182
00183 return false;
00184 }
00185
00186 void KateCodeCompletion::handleKey (QKeyEvent *e)
00187 {
00188
00189 if ((e->key() == Key_Up) && (m_completionListBox->currentItem() == 0))
00190 {
00191 abortCompletion();
00192 m_view->setFocus();
00193 return;
00194 }
00195
00196
00197 if( (e->key() == Key_Up) || (e->key() == Key_Down ) ||
00198 (e->key() == Key_Home ) || (e->key() == Key_End) ||
00199 (e->key() == Key_Prior) || (e->key() == Key_Next ))
00200 {
00201 QTimer::singleShot(0,this,SLOT(showComment()));
00202 QApplication::sendEvent( m_completionListBox, (QEvent*)e );
00203 return;
00204 }
00205
00206
00207 updateBox();
00208 }
00209
00210 void KateCodeCompletion::doComplete()
00211 {
00212 KateCompletionItem* item = static_cast<KateCompletionItem*>(
00213 m_completionListBox->item(m_completionListBox->currentItem()));
00214
00215 if( item == 0 )
00216 return;
00217
00218 QString text = item->m_entry.text;
00219 QString currentLine = m_view->currentTextLine();
00220 int len = m_view->cursorColumnReal() - m_colCursor;
00221 QString currentComplText = currentLine.mid(m_colCursor,len);
00222 QString add = text.mid(currentComplText.length());
00223 if( item->m_entry.postfix == "()" )
00224 add += "(";
00225
00226 emit filterInsertString(&(item->m_entry),&add);
00227 m_view->insertText(add);
00228
00229 complete( item->m_entry );
00230 m_view->setFocus();
00231 }
00232
00233 void KateCodeCompletion::abortCompletion()
00234 {
00235 m_completionPopup->hide();
00236 delete m_commentLabel;
00237 m_commentLabel = 0;
00238 emit completionAborted();
00239 }
00240
00241 void KateCodeCompletion::complete( KTextEditor::CompletionEntry entry )
00242 {
00243 m_completionPopup->hide();
00244 delete m_commentLabel;
00245 m_commentLabel = 0;
00246 emit completionDone( entry );
00247 emit completionDone();
00248 }
00249
00250 void KateCodeCompletion::updateBox( bool )
00251 {
00252 if( m_colCursor > m_view->cursorColumnReal() ) {
00253
00254 kdDebug(13035) << "Aborting Codecompletion after sendEvent" << endl;
00255 kdDebug(13035) << m_view->cursorColumnReal() << endl;
00256 abortCompletion();
00257 m_view->setFocus();
00258 return;
00259 }
00260
00261 m_completionListBox->clear();
00262
00263 QString currentLine = m_view->currentTextLine();
00264 int len = m_view->cursorColumnReal() - m_colCursor;
00265 QString currentComplText = currentLine.mid(m_colCursor,len);
00266
00267
00268
00269
00270
00271
00272
00273
00274 QValueList<KTextEditor::CompletionEntry>::Iterator it;
00275 if( m_caseSensitive ) {
00276 for( it = m_complList.begin(); it != m_complList.end(); ++it ) {
00277 if( (*it).text.startsWith(currentComplText) ) {
00278 new KateCompletionItem(m_completionListBox,*it);
00279 }
00280 }
00281 } else {
00282 currentComplText = currentComplText.upper();
00283 for( it = m_complList.begin(); it != m_complList.end(); ++it ) {
00284 if( (*it).text.upper().startsWith(currentComplText) ) {
00285 new KateCompletionItem(m_completionListBox,*it);
00286 }
00287 }
00288 }
00289
00290 if( m_completionListBox->count() == 0 ||
00291 ( m_completionListBox->count() == 1 &&
00292 currentComplText == m_completionListBox->text(0).stripWhiteSpace() ) ) {
00293 abortCompletion();
00294 m_view->setFocus();
00295 return;
00296 }
00297
00298 kdDebug(13035)<<"KateCodeCompletion::updateBox: Resizing widget"<<endl;
00299 m_completionPopup->resize(m_completionListBox->sizeHint() + QSize(2,2));
00300 QPoint p = m_view->mapToGlobal( m_view->cursorCoordinates() );
00301 int x = p.x();
00302 int y = p.y() ;
00303 if ( y + m_completionPopup->height() + m_view->renderer()->config()->fontMetrics( )->height() > QApplication::desktop()->height() )
00304 y -= (m_completionPopup->height() );
00305 else
00306 y += m_view->renderer()->config()->fontMetrics( )->height();
00307
00308 if (x + m_completionPopup->width() > QApplication::desktop()->width())
00309 x = QApplication::desktop()->width() - m_completionPopup->width();
00310
00311 m_completionPopup->move( QPoint(x,y) );
00312
00313 m_completionListBox->setCurrentItem( 0 );
00314 m_completionListBox->setSelected( 0, true );
00315 m_completionListBox->setFocus();
00316 m_completionPopup->show();
00317
00318 QTimer::singleShot(0,this,SLOT(showComment()));
00319 }
00320
00321 void KateCodeCompletion::showArgHint ( QStringList functionList, const QString& strWrapping, const QString& strDelimiter )
00322 {
00323 unsigned int line, col;
00324 m_view->cursorPositionReal( &line, &col );
00325 m_pArgHint->reset( line, col );
00326 m_pArgHint->setArgMarkInfos( strWrapping, strDelimiter );
00327
00328 int nNum = 0;
00329 for( QStringList::Iterator it = functionList.begin(); it != functionList.end(); it++ )
00330 {
00331 kdDebug(13035) << "Insert function text: " << *it << endl;
00332
00333 m_pArgHint->addFunction( nNum, ( *it ) );
00334
00335 nNum++;
00336 }
00337
00338 m_pArgHint->move(m_view->mapToGlobal(m_view->cursorCoordinates() + QPoint(0,m_view->renderer()->config()->fontMetrics( )->height())) );
00339 m_pArgHint->show();
00340 }
00341
00342 void KateCodeCompletion::slotCursorPosChanged()
00343 {
00344 m_pArgHint->cursorPositionChanged ( m_view, m_view->cursorLine(), m_view->cursorColumnReal() );
00345 }
00346
00347 void KateCodeCompletion::showComment()
00348 {
00349 if (!m_completionPopup->isVisible())
00350 return;
00351
00352 KateCompletionItem* item = static_cast<KateCompletionItem*>(m_completionListBox->item(m_completionListBox->currentItem()));
00353
00354 if( !item )
00355 return;
00356
00357 if( item->m_entry.comment.isEmpty() )
00358 return;
00359
00360 delete m_commentLabel;
00361 m_commentLabel = new KateCodeCompletionCommentLabel( 0, item->m_entry.comment );
00362 m_commentLabel->setFont(QToolTip::font());
00363 m_commentLabel->setPalette(QToolTip::palette());
00364
00365 QPoint rightPoint = m_completionPopup->mapToGlobal(QPoint(m_completionPopup->width(),0));
00366 QPoint leftPoint = m_completionPopup->mapToGlobal(QPoint(0,0));
00367 QRect screen = QApplication::desktop()->screenGeometry ( m_commentLabel );
00368 QPoint finalPoint;
00369 if (rightPoint.x()+m_commentLabel->width() > screen.x() + screen.width())
00370 finalPoint.setX(leftPoint.x()-m_commentLabel->width());
00371 else
00372 finalPoint.setX(rightPoint.x());
00373
00374 m_completionListBox->ensureCurrentVisible();
00375
00376 finalPoint.setY(
00377 m_completionListBox->viewport()->mapToGlobal(m_completionListBox->itemRect(
00378 m_completionListBox->item(m_completionListBox->currentItem())).topLeft()).y());
00379
00380 m_commentLabel->move(finalPoint);
00381 m_commentLabel->show();
00382 }
00383
00384 KateArgHint::KateArgHint( KateView* parent, const char* name )
00385 : QFrame( parent, name, WType_Popup )
00386 {
00387 setBackgroundColor( black );
00388 setPaletteForegroundColor( Qt::black );
00389
00390 labelDict.setAutoDelete( true );
00391 layout = new QVBoxLayout( this, 1, 2 );
00392 layout->setAutoAdd( true );
00393 editorView = parent;
00394
00395 m_markCurrentFunction = true;
00396
00397 setFocusPolicy( StrongFocus );
00398 setFocusProxy( parent );
00399
00400 reset( -1, -1 );
00401 }
00402
00403 KateArgHint::~KateArgHint()
00404 {
00405 }
00406
00407 void KateArgHint::setArgMarkInfos( const QString& wrapping, const QString& delimiter )
00408 {
00409 m_wrapping = wrapping;
00410 m_delimiter = delimiter;
00411 m_markCurrentFunction = true;
00412 }
00413
00414 void KateArgHint::reset( int line, int col )
00415 {
00416 m_functionMap.clear();
00417 m_currentFunction = -1;
00418 labelDict.clear();
00419
00420 m_currentLine = line;
00421 m_currentCol = col - 1;
00422 }
00423
00424 void KateArgHint::slotDone(bool completed)
00425 {
00426 hide();
00427
00428 m_currentLine = m_currentCol = -1;
00429
00430 emit argHintHidden();
00431 if (completed)
00432 emit argHintCompleted();
00433 else
00434 emit argHintAborted();
00435 }
00436
00437 void KateArgHint::cursorPositionChanged( KateView* view, int line, int col )
00438 {
00439 if( m_currentCol == -1 || m_currentLine == -1 ){
00440 slotDone(false);
00441 return;
00442 }
00443
00444 int nCountDelimiter = 0;
00445 int count = 0;
00446
00447 QString currentTextLine = view->doc()->textLine( line );
00448 QString text = currentTextLine.mid( m_currentCol, col - m_currentCol );
00449 QRegExp strconst_rx( "\"[^\"]*\"" );
00450 QRegExp chrconst_rx( "'[^']*'" );
00451
00452 text = text
00453 .replace( strconst_rx, "\"\"" )
00454 .replace( chrconst_rx, "''" );
00455
00456 int index = 0;
00457 while( index < (int)text.length() ){
00458 if( text[index] == m_wrapping[0] ){
00459 ++count;
00460 } else if( text[index] == m_wrapping[1] ){
00461 --count;
00462 } else if( count > 0 && text[index] == m_delimiter[0] ){
00463 ++nCountDelimiter;
00464 }
00465 ++index;
00466 }
00467
00468 if( (m_currentLine > 0 && m_currentLine != line) || (m_currentLine < col) || (count == 0) ){
00469 slotDone(count == 0);
00470 return;
00471 }
00472
00473
00474
00475 }
00476
00477 void KateArgHint::addFunction( int id, const QString& prot )
00478 {
00479 m_functionMap[ id ] = prot;
00480 QLabel* label = new QLabel( prot.stripWhiteSpace().simplifyWhiteSpace(), this );
00481 label->setBackgroundColor( QColor(255, 255, 238) );
00482 label->show();
00483 labelDict.insert( id, label );
00484
00485 if( m_currentFunction < 0 )
00486 setCurrentFunction( id );
00487 }
00488
00489 void KateArgHint::setCurrentFunction( int currentFunction )
00490 {
00491 if( m_currentFunction != currentFunction ){
00492
00493 if( currentFunction < 0 )
00494 currentFunction = (int)m_functionMap.size() - 1;
00495
00496 if( currentFunction > (int)m_functionMap.size()-1 )
00497 currentFunction = 0;
00498
00499 if( m_markCurrentFunction && m_currentFunction >= 0 ){
00500 QLabel* label = labelDict[ m_currentFunction ];
00501 label->setFont( font() );
00502 }
00503
00504 m_currentFunction = currentFunction;
00505
00506 if( m_markCurrentFunction ){
00507 QLabel* label = labelDict[ currentFunction ];
00508 QFont fnt( font() );
00509 fnt.setBold( true );
00510 label->setFont( fnt );
00511 }
00512
00513 adjustSize();
00514 }
00515 }
00516
00517 void KateArgHint::show()
00518 {
00519 QFrame::show();
00520 adjustSize();
00521 }
00522
00523 bool KateArgHint::eventFilter( QObject*, QEvent* e )
00524 {
00525 if( isVisible() && e->type() == QEvent::KeyPress ){
00526 QKeyEvent* ke = static_cast<QKeyEvent*>( e );
00527 if( (ke->state() & ControlButton) && ke->key() == Key_Left ){
00528 setCurrentFunction( currentFunction() - 1 );
00529 ke->accept();
00530 return true;
00531 } else if( ke->key() == Key_Escape ){
00532 slotDone(false);
00533 return false;
00534 } else if( (ke->state() & ControlButton) && ke->key() == Key_Right ){
00535 setCurrentFunction( currentFunction() + 1 );
00536 ke->accept();
00537 return true;
00538 }
00539 }
00540
00541 return false;
00542 }
00543
00544 void KateArgHint::adjustSize( )
00545 {
00546 QRect screen = QApplication::desktop()->screenGeometry( pos() );
00547
00548 QFrame::adjustSize();
00549 if( width() > screen.width() )
00550 resize( screen.width(), height() );
00551
00552 if( x() + width() > screen.x() + screen.width() )
00553 move( screen.x() + screen.width() - width(), y() );
00554
00555 }
00556
00557