templateparser/templatestextedit.cpp

   1 /* Copyright (C) 2011, 2012 Laurent Montel <montel@kde.org>
   2  *
   3  * This library is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU Library General Public
   5  * License as published by the Free Software Foundation; either
   6  * version 2 of the License, or (at your option) any later version.
   7  *
   8  * This library is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Library General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Library General Public License
  14  * along with this library; see the file COPYING.LIB.  If not, write to
  15  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16  * Boston, MA 02110-1301, USA.
  17  */
  18
  19 #include "templatestextedit.h"
  20 #include "templatessyntaxhighlighter.h"
  21
  22 #include <KGlobalSettings>
  23
  24 #include <QCompleter>
  25 #include <QKeyEvent>
  26 #include <QScrollBar>
  27 #include <QStringListModel>
  28
  29 using namespace TemplateParser;
  30
  31 TemplatesTextEdit::TemplatesTextEdit( QWidget *parent )
  32   :KTextEdit( parent )
  33 {
  34   setFocus();
  35   const QFont f = KGlobalSettings::fixedFont();
  36   setFont( f );
  37
  38   setWordWrapMode ( QTextOption::NoWrap );
  39   (void) new TemplatesSyntaxHighlighter( document() );
  40   initCompleter();
  41 }
  42
  43 TemplatesTextEdit::~TemplatesTextEdit()
  44 {
  45 }
  46
  47 void TemplatesTextEdit::initCompleter()
  48 {
  49   QStringList listWord;
  50   listWord << QLatin1String( "%QUOTE" )
  51            << QLatin1String( "%FORCEDPLAIN" )
  52            << QLatin1String( "%FORCEDHTML" )
  53            << QLatin1String( "%QHEADERS" )
  54            << QLatin1String( "%HEADERS" )
  55            << QLatin1String( "%TEXT" )
  56            << QLatin1String( "%OTEXTSIZE" )
  57            << QLatin1String( "%OTEXT" )
  58            << QLatin1String( "%OADDRESSEESADDR" )
  59            << QLatin1String( "%CCADDR" )
  60            << QLatin1String( "%CCNAME" )
  61            << QLatin1String( "%CCFNAME" )
  62            << QLatin1String( "%CCLNAME" )
  63            << QLatin1String( "%TOADDR" )
  64            << QLatin1String( "%TONAME" )
  65            << QLatin1String( "%TOFNAME" )
  66            << QLatin1String( "%TOLNAME" )
  67            << QLatin1String( "%TOLIST" )
  68            << QLatin1String( "%FROMADDR" )
  69            << QLatin1String( "%FROMNAME" )
  70            << QLatin1String( "%FROMFNAME" )
  71            << QLatin1String( "%FROMLNAME" )
  72            << QLatin1String( "%FULLSUBJECT" )
  73            << QLatin1String( "%FULLSUBJ" )
  74            << QLatin1String( "%MSGID" )
  75            << QLatin1String( "%HEADER( " )
  76            << QLatin1String( "%OCCADDR" )
  77            << QLatin1String( "%OCCNAME" )
  78            << QLatin1String( "%OCCFNAME" )
  79            << QLatin1String( "%OCCLNAME" )
  80            << QLatin1String( "%OTOADDR" )
  81            << QLatin1String( "%OTONAME" )
  82            << QLatin1String( "%OTOFNAME" )
  83            << QLatin1String( "%OTOLNAME" )
  84            << QLatin1String( "%OTOLIST" )
  85            << QLatin1String( "%OTO" )
  86            << QLatin1String( "%OFROMADDR" )
  87            << QLatin1String( "%OFROMNAME" )
  88            << QLatin1String( "%OFROMFNAME" )
  89            << QLatin1String( "%OFROMLNAME" )
  90            << QLatin1String( "%OFULLSUBJECT" )
  91            << QLatin1String( "%OFULLSUBJ" )
  92            << QLatin1String( "%OMSGID" )
  93            << QLatin1String( "%DATEEN" )
  94            << QLatin1String( "%DATESHORT" )
  95            << QLatin1String( "%DATE" )
  96            << QLatin1String( "%DOW" )
  97            << QLatin1String( "%TIMELONGEN" )
  98            << QLatin1String( "%TIMELONG" )
  99            << QLatin1String( "%TIME" )
 100            << QLatin1String( "%ODATEEN" )
 101            << QLatin1String( "%ODATESHORT" )
 102            << QLatin1String( "%ODATE" )
 103            << QLatin1String( "%ODOW" )
 104            << QLatin1String( "%OTIMELONGEN" )
 105            << QLatin1String( "%OTIMELONG" )
 106            << QLatin1String( "%OTIME" )
 107            << QLatin1String( "%BLANK" )
 108            << QLatin1String( "%NOP" )
 109            << QLatin1String( "%CLEAR" )
 110            << QLatin1String( "%DEBUGOFF" )
 111            << QLatin1String( "%DEBUG" )
 112            << QLatin1String( "%CURSOR" )
 113            << QLatin1String( "%SIGNATURE" );
 114
 115   listWord << QLatin1String( "%REM=\"\"%-" )
 116            << QLatin1String( "%INSERT=\"\"" )
 117            << QLatin1String( "%SYSTEM=\"\"" )
 118            << QLatin1String( "%PUT=\"\"" )
 119            << QLatin1String( "%QUOTEPIPE=\"\"" )
 120            << QLatin1String( "%MSGPIPE=\"\"" )
 121            << QLatin1String( "%BODYPIPE=\"\"" )
 122            << QLatin1String( "%CLEARPIPE=\"\"" )
 123            << QLatin1String( "%TEXTPIPE=\"\"" )
 124            << QLatin1String( "%OHEADER=\"\"" )
 125            << QLatin1String( "%HEADER=\".*\"" );
 126
 127   m_completer = new QCompleter( this );
 128   m_completer->setModel( new QStringListModel( listWord, m_completer ) );
 129   m_completer->setModelSorting( QCompleter::CaseSensitivelySortedModel );
 130   m_completer->setCaseSensitivity( Qt::CaseInsensitive );
 131
 132   m_completer->setWidget( this );
 133   m_completer->setCompletionMode( QCompleter::PopupCompletion );
 134
 135   connect( m_completer, SIGNAL(activated(QString)), this, SLOT(slotInsertCompletion(QString)) );
 136 }
 137
 138 void TemplatesTextEdit::slotInsertCompletion( const QString &completion )
 139 {
 140   QTextCursor tc = textCursor();
 141   int extra = completion.length() - m_completer->completionPrefix().length();
 142   tc.movePosition( QTextCursor::Left );
 143   tc.movePosition( QTextCursor::EndOfWord );
 144   tc.insertText( completion.right( extra ) );
 145   setTextCursor( tc );
 146
 147 }
 148
 149 void TemplatesTextEdit::keyPressEvent( QKeyEvent *e )
 150 {
 151   if( m_completer->popup()->isVisible() ) {
 152     switch ( e->key() ) {
 153     case Qt::Key_Enter:
 154     case Qt::Key_Return:
 155     case Qt::Key_Escape:
 156     case Qt::Key_Tab:
 157     case Qt::Key_Backtab:
 158       e->ignore();
 159       return; // let the completer do default behavior
 160     default:
 161       break;
 162     }
 163   }
 164   KTextEdit::keyPressEvent( e );
 165   const QString text = wordUnderCursor();
 166   if( text.length() < 2 ) {
 167     // min 2 char for completion
 168     return;
 169   }
 170
 171   m_completer->setCompletionPrefix( text );
 172
 173   QRect cr = cursorRect();
 174   cr.setWidth( m_completer->popup()->sizeHintForColumn( 0 ) +
 175                m_completer->popup()->verticalScrollBar()->sizeHint().width() );
 176   m_completer->complete( cr );
 177 }
 178
 179 QString TemplatesTextEdit::wordUnderCursor()
 180 {
 181     static QString eow =
 182       QLatin1String( "~!@#$^&*()+{}|\"<>,./;'[]\\-= " ); // everything without ':', '?' and '_'
 183     QTextCursor tc = textCursor();
 184
 185     tc.anchor();
 186     while ( 1 ) {
 187       // vHanda: I don't understand why the cursor seems to give a pos 1 past
 188       // the last char instead of just the last char.
 189       int pos = tc.position() - 1;
 190       if ( pos < 0 || eow.contains( document()->characterAt(pos) ) ) {
 191         break;
 192       }
 193       tc.movePosition( QTextCursor::Left, QTextCursor::KeepAnchor );
 194     }
 195     return tc.selectedText();
 196 }
 197
 198 #include "templatestextedit.moc"
 199