src/YQMultiLineEdit.cc

   1 /*---------------------------------------------------------------------\
   2 |                                                                      |
   3 |                      __   __    ____ _____ ____                      |
   4 |                      \ \ / /_ _/ ___|_   _|___ \                     |
   5 |                       \ V / _` \___ \ | |   __) |                    |
   6 |                        | | (_| |___) || |  / __/                     |
   7 |                        |_|\__,_|____/ |_| |_____|                    |
   8 |                                                                      |
   9 |                               core system                            |
  10 |                                                        (C) SuSE GmbH |
  11 \----------------------------------------------------------------------/
  12
  13   File:       YQMultiLineEdit.cc
  14
  15   Author:     Stefan Hundhammer <sh@suse.de>
  16
  17 /-*/
  18
  19
  20 #include <q3multilineedit.h>
  21 #include <QVBoxLayout>
  22 #include <QTextEdit>
  23 #include <qlabel.h>
  24 #define y2log_component "qt-ui"
  25 #include <ycp/y2log.h>
  26
  27 using std::max;
  28
  29 #include "utf8.h"
  30 #include "YQUI.h"
  31 #include "YEvent.h"
  32 #include "YQMultiLineEdit.h"
  33 #include "YQSignalBlocker.h"
  34 #include "YQWidgetCaption.h"
  35
  36
  37 YQMultiLineEdit::YQMultiLineEdit( YWidget * parent, const string & label )
  38     : QFrame( (QWidget *) parent->widgetRep() )
  39     , YMultiLineEdit( parent, label )
  40 {
  41     QVBoxLayout* layout = new QVBoxLayout( this );
  42     setLayout( layout );
  43
  44     setWidgetRep( this );
  45     layout->setSpacing( YQWidgetSpacing );
  46     layout->setMargin ( YQWidgetMargin  );
  47
  48     _caption = new YQWidgetCaption( this, label );
  49     YUI_CHECK_NEW( _caption );
  50     layout->addWidget( _caption );
  51
  52     _qt_textEdit = new QTextEdit( this );
  53     YUI_CHECK_NEW( _qt_textEdit );
  54     layout->addWidget( _qt_textEdit );
  55
  56     _qt_textEdit->setTextFormat( Qt::PlainText );
  57     _qt_textEdit->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding ) );
  58
  59     _caption->setBuddy( _qt_textEdit );
  60
  61     connect( _qt_textEdit,      SIGNAL( textChanged( void ) ),
  62              this,              SLOT  ( changed    ( void ) ) );
  63 }
  64
  65
  66 YQMultiLineEdit::~YQMultiLineEdit()
  67 {
  68     // NOP
  69 }
  70
  71
  72 string YQMultiLineEdit::value()
  73 {
  74     return toUTF8( _qt_textEdit->text() );
  75 }
  76
  77
  78 void YQMultiLineEdit::setValue( const string & text )
  79 {
  80     YQSignalBlocker sigBlocker( _qt_textEdit );
  81
  82     _qt_textEdit->setText( fromUTF8( text ) );
  83 }
  84
  85
  86 void YQMultiLineEdit::setLabel( const string & label )
  87 {
  88     _caption->setText( label );
  89     YMultiLineEdit::setLabel( label );
  90 }
  91
  92
  93 void YQMultiLineEdit::setInputMaxLength( int newMaxLength )
  94 {
  95     YMultiLineEdit::setInputMaxLength( newMaxLength );
  96
  97     QString text = _qt_textEdit->text();
  98
  99     if ( (int) text.length() > inputMaxLength() )
 100     {
 101         text.truncate( inputMaxLength() );
 102         _qt_textEdit->setText(text);
 103     }
 104 }
 105
 106
 107 void YQMultiLineEdit::enforceMaxInputLength()
 108 {
 109 #if FIXME
 110     if ( inputMaxLength() >= 0 && _qt_textEdit->length() > inputMaxLength() )
 111     {
 112         int index;
 113         int para;
 114
 115         _qt_textEdit->getCursorPosition( &para, &index);
 116
 117         QString text = _qt_textEdit->text();
 118
 119         int pos = 0; // current positon in text
 120         int section =0; // section in text;
 121         // iterate over the string
 122
 123         while ( pos != (int) text.length()+1 )
 124         {
 125             // we reached the paragraph where the user entered
 126             // a character
 127             if ( section == para )
 128             {
 129                 // remove that character
 130                 text.remove( pos+index-1, 1 );
 131                 break;
 132             }
 133
 134             // new paragraph begins
 135             if ( text[pos] == '\n' )
 136                 section++;
 137
 138             pos++;
 139         }
 140
 141         _qt_textEdit->setText( text );
 142
 143         // user removed a paragraph
 144         if ( index == 0 )
 145         {
 146             --para;
 147             // the new index is the end of the previous paragraph
 148             index = _qt_textEdit->paragraphLength(para) + 1;
 149         }
 150
 151         // adjust to new cursor position before the removed character
 152         _qt_textEdit->setCursorPosition( para, index-1 );
 153     }
 154 #endif
 155 }
 156
 157
 158 void YQMultiLineEdit::changed()
 159 {
 160     enforceMaxInputLength();
 161
 162     if ( notify() )
 163         YQUI::ui()->sendEvent( new YWidgetEvent( this, YEvent::ValueChanged ) );
 164 }
 165
 166
 167 void YQMultiLineEdit::setEnabled( bool enabled )
 168 {
 169     _caption->setEnabled( enabled );
 170     _qt_textEdit->setEnabled( enabled );
 171     YWidget::setEnabled( enabled );
 172 }
 173
 174
 175 int YQMultiLineEdit::preferredWidth()
 176 {
 177     return max( 30, sizeHint().width() );
 178 }
 179
 180
 181 int YQMultiLineEdit::preferredHeight()
 182 {
 183     int hintHeight       = defaultVisibleLines() * _qt_textEdit->fontMetrics().lineSpacing();
 184     hintHeight          += _qt_textEdit->frameWidth() * 2 + YQWidgetMargin * 2;
 185
 186     if ( _caption->isShown() )
 187         hintHeight += _caption->sizeHint().height() + YQWidgetSpacing;
 188
 189     return max( 10, hintHeight );
 190 }
 191
 192
 193 void YQMultiLineEdit::setSize( int newWidth, int newHeight )
 194 {
 195     resize( newWidth, newHeight );
 196 }
 197
 198
 199 bool YQMultiLineEdit::setKeyboardFocus()
 200 {
 201     _qt_textEdit->setFocus();
 202
 203     return true;
 204 }
 205
 206
 207 #include "YQMultiLineEdit.moc"
 208