Move QCompleter on QRect x,y

[patrik08]

i find QsciScintilla a super libs but code AutoCompletion not run ok... it display a not clickable widged.... ( only keyboard can secect!)

i have implement the QT4 QCompleter combobox and its run Super..

only its display on not correct place ....
my problem how i can find the cursor QRect on QsciScintilla?



i bring QsciScintilla getWord(int position) to public and i can bring word to QCompleter class...

/* completer from qt4 make it */
void QViScintilla::CursorAtIndex(int line ,int cool )
{
    /* start from connect(this, SIGNAL(cursorPositionChanged(int,int)),this, SLOT(CursorAtIndex(int,int))); */
    setAutoCompletionFillupsEnabled(false);   /* ensure not start  scite autoxx */
    int newPos = SendScintilla(SCI_GETCURRENTPOS);
    CURRENTWORD = getWord(newPos);    /* bring getWord(int position) to public !!!!!  */
    qDebug() << "### word " << CURRENTWORD;   /* word piece on cursor */
}
 
/* now i display it so ... its not correct cursor position .....   display qt4 QCompleter */
  QPoint pointers(QCursor::pos());
    QRect cr = QRect ( posX, posY ,20,20);
    cr.setWidth(c->popup()->sizeHintForColumn(0) + c->popup()->verticalScrollBar()->sizeHint().width());
    c->complete(cr); // popup it up!

/* completer from qt4 make it */
void QViScintilla::CursorAtIndex(int line ,int cool )
{
    /* start from connect(this, SIGNAL(cursorPositionChanged(int,int)),this, SLOT(CursorAtIndex(int,int))); */
    setAutoCompletionFillupsEnabled(false);   /* ensure not start  scite autoxx */
    int newPos = SendScintilla(SCI_GETCURRENTPOS);
    CURRENTWORD = getWord(newPos);    /* bring getWord(int position) to public !!!!!  */
    qDebug() << "### word " << CURRENTWORD;   /* word piece on cursor */
}

/* now i display it so ... its not correct cursor position .....   display qt4 QCompleter */
  QPoint pointers(QCursor::pos());
    QRect cr = QRect ( posX, posY ,20,20);
    cr.setWidth(c->popup()->sizeHintForColumn(0) + c->popup()->verticalScrollBar()->sizeHint().width());
    c->complete(cr); // popup it up!

To copy to clipboard, switch view to plain text mode 

[patrik08]

I resolve the problem to paint on QsciScintilla a QT4 QCompleter read this code line...

to become the same X,Y as

QTextEdit::cursorRect()

/* constructor */
     connect(this, SIGNAL(cursorPositionChanged(int,int)),this, SLOT(CursorAtIndex(int,int)));
     baseram = QApplication::clipboard();   /* capture word on clipboard & keyPressEvent */
     completerbase = new QCompleter();
     completerbase->setModel(modelFromFile(":/img/_htmlwordslist.txt"));
     completerbase->setModelSorting(QCompleter::CaseInsensitivelySortedModel);
     completerbase->setCaseSensitivity(Qt::CaseInsensitive);
     setCompleter(completerbase);
 
 
/* constructor */
 
/* completer from qt4 make it */
void QViScintilla::CursorAtIndex(int line ,int cool )
{
    /* start from connect(this, SIGNAL(cursorPositionChanged(int,int)),this, SLOT(CursorAtIndex(int,int))); */
    setAutoCompletionFillupsEnabled(false);
    int newPos = SendScintilla(SCI_GETCURRENTPOS);
    posX = SendScintilla(SCI_POINTXFROMPOSITION, 0, newPos);
    posY = SendScintilla(SCI_POINTYFROMPOSITION, 0, newPos);
    CURRENTWORD = TextUnderCursor(newPos);    /* bring getWord(int position) to public !!!!!  */
    ///////////qDebug() << "### word " << CURRENTWORD;   /* word piece on cursor */
}
 
void QViScintilla::setCompleter(QCompleter *completer)
{
    if (c)
        QObject::disconnect(c, 0, this, 0);
    c = completer;
    if (!c) {
    return;
    }
    c->setWidget(this);
    c->setCompletionMode(QCompleter::PopupCompletion);
    c->setCaseSensitivity(Qt::CaseSensitive);
    connect(c, SIGNAL(activated(const QString&)), this, SLOT(insertCompletion(const QString&)));
}
 
 
 
void QViScintilla::keyPressEvent(QKeyEvent *e)
{
 
    if (c && c->popup()->isVisible()) {
        // The following keys are forwarded by the completer to the widget
       switch (e->key()) {
       case Qt::Key_Enter:
       case Qt::Key_Return:
       case Qt::Key_Escape:
       case Qt::Key_Backtab:
            e->ignore(); 
            return; // let the completer do default behavior
       default:
           break;
       }
    }
 
     bool isShortcut = ((e->modifiers() & Qt::ControlModifier) && e->key() == Qt::Key_E); // CTRL+E
     if (!c || !isShortcut) {
     QsciScintillaBase::keyPressEvent(e); 
     }
 
     const bool ctrlOrShift = e->modifiers() & (Qt::ControlModifier | Qt::ShiftModifier);
     if (!c || (ctrlOrShift && CURRENTWORD.isEmpty())) {
        return;
     }
     static QString eow("~!@#$%^&*()_+{}|:\"<>?,./;'[]\\-="); // end of word
     bool hasModifier = (e->modifiers() != Qt::NoModifier) && !ctrlOrShift;
 
    if (!isShortcut && (hasModifier || CURRENTWORD.isEmpty()|| completionPrefix.length() < 2  || eow.contains(CURRENTWORD.right(1)))) {
        c->popup()->hide();
        return;
    }
 
    if (CURRENTWORD != c->completionPrefix()) {
        c->setCompletionPrefix(CURRENTWORD);
        c->popup()->setCurrentIndex(c->completionModel()->index(0, 0));
    }
 
    QRect cr = QRect (posX, posY ,20,20);
    cr.setWidth(c->popup()->sizeHintForColumn(0) + c->popup()->verticalScrollBar()->sizeHint().width());
    c->complete(cr); // popup it up!
}
 
 
 
QAbstractItemModel *QViScintilla::modelFromFile(const QString& fileName)
{
 
    QFile file(fileName);
     if (!file.open(QFile::ReadOnly))
         return new QStringListModel(completer);
 
     QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
     QStringList words;
 
     while (!file.atEnd()) {
         QByteArray line = file.readLine();
         if (!line.isEmpty())
             words << line.trimmed();
     }
 
     QApplication::restoreOverrideCursor();
     return new QStringListModel(words, completer);
}
 
 
/*    
on class QSCINTILLA_EXPORT QsciScintilla : public QsciScintillaBase
append on public !  && rebuild lib..  static
inline QString TextUnderCursor(int &pos) {
    return getWord(pos);
 } 
 
*/

/* constructor */
     connect(this, SIGNAL(cursorPositionChanged(int,int)),this, SLOT(CursorAtIndex(int,int)));
     baseram = QApplication::clipboard();   /* capture word on clipboard & keyPressEvent */
     completerbase = new QCompleter();
     completerbase->setModel(modelFromFile(":/img/_htmlwordslist.txt"));
     completerbase->setModelSorting(QCompleter::CaseInsensitivelySortedModel);
     completerbase->setCaseSensitivity(Qt::CaseInsensitive);
     setCompleter(completerbase);
     
     
/* constructor */

/* completer from qt4 make it */
void QViScintilla::CursorAtIndex(int line ,int cool )
{
    /* start from connect(this, SIGNAL(cursorPositionChanged(int,int)),this, SLOT(CursorAtIndex(int,int))); */
    setAutoCompletionFillupsEnabled(false);
    int newPos = SendScintilla(SCI_GETCURRENTPOS);
    posX = SendScintilla(SCI_POINTXFROMPOSITION, 0, newPos);
    posY = SendScintilla(SCI_POINTYFROMPOSITION, 0, newPos);
    CURRENTWORD = TextUnderCursor(newPos);    /* bring getWord(int position) to public !!!!!  */
    ///////////qDebug() << "### word " << CURRENTWORD;   /* word piece on cursor */
}

void QViScintilla::setCompleter(QCompleter *completer)
{
    if (c)
        QObject::disconnect(c, 0, this, 0);
    c = completer;
    if (!c) {
    return;
    }
    c->setWidget(this);
    c->setCompletionMode(QCompleter::PopupCompletion);
    c->setCaseSensitivity(Qt::CaseSensitive);
    connect(c, SIGNAL(activated(const QString&)), this, SLOT(insertCompletion(const QString&)));
}



void QViScintilla::keyPressEvent(QKeyEvent *e)
{
    
    if (c && c->popup()->isVisible()) {
        // The following keys are forwarded by the completer to the widget
       switch (e->key()) {
       case Qt::Key_Enter:
       case Qt::Key_Return:
       case Qt::Key_Escape:
       case Qt::Key_Backtab:
            e->ignore(); 
            return; // let the completer do default behavior
       default:
           break;
       }
    }
    
     bool isShortcut = ((e->modifiers() & Qt::ControlModifier) && e->key() == Qt::Key_E); // CTRL+E
     if (!c || !isShortcut) {
     QsciScintillaBase::keyPressEvent(e); 
     }
     
     const bool ctrlOrShift = e->modifiers() & (Qt::ControlModifier | Qt::ShiftModifier);
     if (!c || (ctrlOrShift && CURRENTWORD.isEmpty())) {
        return;
     }
     static QString eow("~!@#$%^&*()_+{}|:\"<>?,./;'[]\\-="); // end of word
     bool hasModifier = (e->modifiers() != Qt::NoModifier) && !ctrlOrShift;
    
    if (!isShortcut && (hasModifier || CURRENTWORD.isEmpty()|| completionPrefix.length() < 2  || eow.contains(CURRENTWORD.right(1)))) {
        c->popup()->hide();
        return;
    }

    if (CURRENTWORD != c->completionPrefix()) {
        c->setCompletionPrefix(CURRENTWORD);
        c->popup()->setCurrentIndex(c->completionModel()->index(0, 0));
    }
    
    QRect cr = QRect (posX, posY ,20,20);
    cr.setWidth(c->popup()->sizeHintForColumn(0) + c->popup()->verticalScrollBar()->sizeHint().width());
    c->complete(cr); // popup it up!
}



QAbstractItemModel *QViScintilla::modelFromFile(const QString& fileName)
{
    
    QFile file(fileName);
     if (!file.open(QFile::ReadOnly))
         return new QStringListModel(completer);

     QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
     QStringList words;

     while (!file.atEnd()) {
         QByteArray line = file.readLine();
         if (!line.isEmpty())
             words << line.trimmed();
     }

     QApplication::restoreOverrideCursor();
     return new QStringListModel(words, completer);
}


/*    
on class QSCINTILLA_EXPORT QsciScintilla : public QsciScintillaBase
append on public !  && rebuild lib..  static
inline QString TextUnderCursor(int &pos) {
    return getWord(pos);
 } 

*/

To copy to clipboard, switch view to plain text mode 

[HTML]
### on Qt4.pro set .. +mac intel + ppc to have only one static lib
!win32:VERSION = 3.0.0

TEMPLATE = lib
TARGET = qscintilla2
CONFIG += qt warn_off release staticlib thread
INCLUDEPATH = . ../include ../src
DEFINES = QT SCI_LEXER

# Handle both Qt v4 and v3.

DESTDIR = ../../all_os_libs


macx {
QMAKE_MAC_SDK=/Developer/SDKs/MacOSX10.4u.sdk
CONFIG+=x86 ppc
}

[/HTML]