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# kfilemetainfowidget.cpp

    00001 /* This file is part of the KDE libraries
    00002     Copyright (C) 2001,2002 Rolf Magnus <ramagnus@kde.org>
    00003
    00004     library is free software; you can redistribute it and/or
    00005     modify it under the terms of the GNU Library General Public
    00006     License version 2 as published by the Free Software Foundation.
    00007
    00008     This library is distributed in the hope that it will be useful,
    00009     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00010     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00011     Library General Public License for more details.
    00012
    00013     You should have received a copy of the GNU Library General Public License
    00014     along with this library; see the file COPYING.LIB.  If not, write to
    00015     the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00016     Boston, MA 02111-1307, USA.
    00017
    00018     $Id: kfilemetainfowidget.cpp 368016 2004-12-03 08:30:42Z mpyne $
    00019  */
    00020
    00021 #include "kfilemetainfowidget.h"
    00022
    00023 #include <keditcl.h>
    00024 #include <klocale.h>
    00025 #include <knuminput.h>
    00026 #include <kcombobox.h>
    00027 #include <klineedit.h>
    00028 #include <kstringvalidator.h>
    00029 #include <kdebug.h>
    00030
    00031 #include <qlabel.h>
    00032 #include <qcheckbox.h>
    00033 #include <qspinbox.h>
    00034 #include <qdatetimeedit.h>
    00035 #include <qpixmap.h>
    00036 #include <qimage.h>
    00037 #include <qlayout.h>
    00038 #include <qvalidator.h>
    00039
    00040 /*
    00041   Widgets used for different types:
    00042
    00043   bool      : QCheckBox
    00044   int       : QSpinBox
    00045   QString   : KComboBox if the validator is a KStringListValidator, else lineedit
    00046   QDateTime : QDateTimeEdit
    00047
    00048 */
    00049
    00050 KFileMetaInfoWidget::KFileMetaInfoWidget(KFileMetaInfoItem item,
    00051                                          QValidator* val,
    00052                                          QWidget* parent, const char* name)
    00053     : QWidget(parent, name),
    00054       m_value(item.value()),
    00055       m_item(item),
    00056       m_validator(val)
    00057 {
    00058     init(item, ReadWrite);
    00059 }
    00060
    00061 KFileMetaInfoWidget::KFileMetaInfoWidget(KFileMetaInfoItem item,
    00062                                          Mode mode,
    00063                                          QValidator* val,
    00064                                          QWidget* parent, const char* name)
    00065     : QWidget(parent, name),
    00066       m_value(item.value()),
    00067       m_item(item),
    00068       m_validator(val)
    00069 {
    00070     init(item, mode);
    00071 }
    00072
    00073 void KFileMetaInfoWidget::init(KFileMetaInfoItem item, Mode mode)
    00074 {
    00075     kdDebug(7033) << "*** item "  << m_item.key()
    00076                   << " is a " << value().typeName() << endl;
    00077
    00078     if (m_item.isEditable() && !(mode & ReadOnly))
    00079         m_widget = makeWidget();
    00080     else
    00081         switch (m_value.type())
    00082         {
    00083             case QVariant::Image :
    00084                 m_widget = new QLabel(this, "info image");
    00085                 static_cast<QLabel*>(m_widget)->setPixmap(QPixmap(m_value.toImage()));
    00086                 break;
    00087             case QVariant::Pixmap :
    00088                 m_widget = new QLabel(this, "info pixmap");
    00089                 static_cast<QLabel*>(m_widget)->setPixmap(m_value.toPixmap());
    00090                 break;
    00091             default:
    00092                 m_widget = new QLabel(item.string(true), this, "info label");
    00093         }
    00094
    00095     (new QHBoxLayout(this))->addWidget(m_widget);
    00096 }
    00097
    00098 KFileMetaInfoWidget::~KFileMetaInfoWidget()
    00099 {
    00100 }
    00101
    00102 QWidget* KFileMetaInfoWidget::makeWidget()
    00103 {
    00104     QString valClass;
    00105     QWidget* w;
    00106
    00107     switch (m_value.type())
    00108     {
    00109         case QVariant::Invalid:     // no type
    00110             // just make a label
    00111             w = new QLabel(i18n("<Error>"), this, "label");
    00112             break;
    00113
    00114         case QVariant::Int:         // an int
    00115         case QVariant::UInt:        // an unsigned int
    00116             w = makeIntWidget();
    00117             break;
    00118
    00119         case QVariant::Bool:        // a bool
    00120             w = makeBoolWidget();
    00121             break;
    00122
    00123         case QVariant::Double:      // a double
    00124             w = makeDoubleWidget();
    00125             break;
    00126
    00127
    00128         case QVariant::Date:        // a QDate
    00129             w = makeDateWidget();
    00130             break;
    00131
    00132         case QVariant::Time:        // a QTime
    00133             w = makeTimeWidget();
    00134             break;
    00135
    00136         case QVariant::DateTime:    // a QDateTime
    00137             w = makeDateTimeWidget();
    00138             break;
    00139
    00140 #if 0
    00141         case QVariant::Size:        // a QSize
    00142         case QVariant::String:      // a QString
    00143         case QVariant::List:        // a QValueList
    00144         case QVariant::Map:         // a QMap
    00145         case QVariant::StringList:  //  a QStringList
    00146         case QVariant::Font:        // a QFont
    00147         case QVariant::Pixmap:      // a QPixmap
    00148         case QVariant::Brush:       // a QBrush
    00149         case QVariant::Rect:        // a QRect
    00150         case QVariant::Color:       // a QColor
    00151         case QVariant::Palette:     // a QPalette
    00152         case QVariant::ColorGroup:  // a QColorGroup
    00153         case QVariant::IconSet:     // a QIconSet
    00154         case QVariant::Point:       // a QPoint
    00155         case QVariant::Image:       // a QImage
    00156         case QVariant::CString:     // a QCString
    00157         case QVariant::PointArray:  // a QPointArray
    00158         case QVariant::Region:      // a QRegion
    00159         case QVariant::Bitmap:      // a QBitmap
    00160         case QVariant::Cursor:      // a QCursor
    00161         case QVariant::ByteArray:   // a QByteArray
    00162         case QVariant::BitArray:    // a QBitArray
    00163         case QVariant::SizePolicy:  // a QSizePolicy
    00164         case QVariant::KeySequence: // a QKeySequence
    00165 #endif
    00166         default:
    00167             w = makeStringWidget();
    00168     }
    00169
    00170     kdDebug(7033) << "*** item " << m_item.key()
    00171                   << "is a " << m_item.value().typeName() << endl;
    00172     if (m_validator)
    00173         kdDebug(7033) << " and validator is a " << m_validator->className() << endl;
    00174
    00175     kdDebug(7033) << "*** created a " << w->className() << " for it\n";
    00176
    00177     return w;
    00178 }
    00179
    00180 // ****************************************************************
    00181 // now the different methods to make the widgets for specific types
    00182 // ****************************************************************
    00183
    00184 QWidget* KFileMetaInfoWidget::makeBoolWidget()
    00185 {
    00186     QCheckBox* cb = new QCheckBox(this, "metainfo bool widget");
    00187     cb->setChecked(m_item.value().toBool());
    00188     connect(cb, SIGNAL(toggled(bool)), this, SLOT(slotChanged(bool)));
    00189     return cb;
    00190 }
    00191
    00192 QWidget* KFileMetaInfoWidget::makeIntWidget()
    00193 {
    00194     QSpinBox* sb = new QSpinBox(this, "metainfo integer widget");
    00195     sb->setValue(m_item.value().toInt());
    00196
    00197     if (m_validator)
    00198     {
    00199         if (m_validator->inherits("QIntValidator"))
    00200         {
    00201             sb->setMinValue(static_cast<QIntValidator*>(m_validator)->bottom());
    00202             sb->setMaxValue(static_cast<QIntValidator*>(m_validator)->top());
    00203         }
    00204         reparentValidator(sb, m_validator);
    00205         sb->setValidator(m_validator);
    00206     }
    00207
    00208     // make sure that an uint cannot be set to a value < 0
    00209     if (m_item.type() == QVariant::UInt)
    00210         sb->setMinValue(QMAX(sb->minValue(), 0));
    00211
    00212     connect(sb, SIGNAL(valueChanged(int)), this, SLOT(slotChanged(int)));
    00213     return sb;
    00214 }
    00215
    00216 QWidget* KFileMetaInfoWidget::makeDoubleWidget()
    00217 {
    00218     KDoubleNumInput* dni = new KDoubleNumInput(m_item.value().toDouble(),
    00219                                                this, "metainfo double widget");
    00220
    00221
    00222     if (m_validator)
    00223     {
    00224         if (m_validator->inherits("QDoubleValidator"))
    00225         {
    00226             dni->setMinValue(static_cast<QDoubleValidator*>(m_validator)->bottom());
    00227             dni->setMaxValue(static_cast<QDoubleValidator*>(m_validator)->top());
    00228         }
    00229         reparentValidator(dni, m_validator);
    00230     }
    00231
    00232     connect(dni, SIGNAL(valueChanged(double)), this, SLOT(slotChanged(double)));
    00233     return dni;
    00234 }
    00235
    00236 QWidget* KFileMetaInfoWidget::makeStringWidget()
    00237 {
    00238     if (m_validator && m_validator->inherits("KStringListValidator"))
    00239     {
    00240         KComboBox* b = new KComboBox(true, this, "metainfo combobox");
    00241         KStringListValidator* val = static_cast<KStringListValidator*>
    00242                                                     (m_validator);
    00243         b->insertStringList(val->stringList());
    00244         b->setCurrentText(m_item.value().toString());
    00245         connect(b, SIGNAL(activated(const QString &)), this, SLOT(slotComboChanged(const QString &)));
    00246         b->setValidator(val);
    00247         reparentValidator(b, val);
    00248         return b;
    00249     }
    00250
    00251     if ( m_item.attributes() & KFileMimeTypeInfo::MultiLine ) {
    00252         KEdit *edit = new KEdit( this );
    00253         edit->setText( m_item.value().toString() );
    00254         connect( edit, SIGNAL( textChanged() ),
    00255                  this, SLOT( slotMultiLineEditChanged() ));
    00256         // can't use a validator with a QTextEdit, but we may need to delete it
    00257         if ( m_validator )
    00258             reparentValidator( edit, m_validator );
    00259         return edit;
    00260     }
    00261
    00262     KLineEdit* e = new KLineEdit(m_item.value().toString(), this);
    00263     if (m_validator)
    00264     {
    00265         e->setValidator(m_validator);
    00266         reparentValidator(e, m_validator);
    00267     }
    00268     connect(e,    SIGNAL(textChanged(const QString&)),
    00269             this, SLOT(slotLineEditChanged(const QString&)));
    00270     return e;
    00271 }
    00272
    00273 QWidget* KFileMetaInfoWidget::makeDateWidget()
    00274 {
    00275   QWidget *e = new QDateEdit(m_item.value().toDate(), this);
    00276   connect(e,    SIGNAL(valueChanged(const QDate&)),
    00277           this, SLOT(slotDateChanged(const QDate&)));
    00278   return e;
    00279 }
    00280
    00281 QWidget* KFileMetaInfoWidget::makeTimeWidget()
    00282 {
    00283   return new QTimeEdit(m_item.value().toTime(), this);
    00284 }
    00285
    00286 QWidget* KFileMetaInfoWidget::makeDateTimeWidget()
    00287 {
    00288   return new QDateTimeEdit(m_item.value().toDateTime(), this);
    00289 }
    00290
    00291 void KFileMetaInfoWidget::reparentValidator( QWidget *widget,
    00292                                              QValidator *validator )
    00293 {
    00294     if ( !validator->parent() )
    00295         widget->insertChild( validator );
    00296 }
    00297
    00298 // ****************************************************************
    00299 // now the slots that let us get notified if the value changed in the child
    00300 // ****************************************************************
    00301
    00302 void KFileMetaInfoWidget::slotChanged(bool value)
    00303 {
    00304     Q_ASSERT(m_widget->inherits("QComboBox"));
    00305     m_value = QVariant(value);
    00306     emit valueChanged(m_value);
    00307     m_dirty = true;
    00308 }
    00309
    00310 void KFileMetaInfoWidget::slotChanged(int value)
    00311 {
    00312     Q_ASSERT(m_widget->inherits("QSpinBox"));
    00313     m_value = QVariant(value);
    00314     emit valueChanged(m_value);
    00315     m_dirty = true;
    00316 }
    00317
    00318 void KFileMetaInfoWidget::slotChanged(double value)
    00319 {
    00320     Q_ASSERT(m_widget->inherits("KDoubleNumInput"));
    00321     m_value = QVariant(value);
    00322     emit valueChanged(m_value);
    00323     m_dirty = true;
    00324 }
    00325
    00326 void KFileMetaInfoWidget::slotComboChanged(const QString &value)
    00327 {
    00328     Q_ASSERT(m_widget->inherits("KComboBox"));
    00329     m_value = QVariant(value);
    00330     emit valueChanged(m_value);
    00331     m_dirty = true;
    00332 }
    00333
    00334 void KFileMetaInfoWidget::slotLineEditChanged(const QString& value)
    00335 {
    00336     Q_ASSERT(m_widget->inherits("KLineEdit"));
    00337     m_value = QVariant(value);
    00338     emit valueChanged(m_value);
    00339     m_dirty = true;
    00340 }
    00341
    00342 // that may be a little expensive for long texts, but what can we do?
    00343 void KFileMetaInfoWidget::slotMultiLineEditChanged()
    00344 {
    00345     Q_ASSERT(m_widget->inherits("QTextEdit"));
    00346     m_value = QVariant( static_cast<const QTextEdit*>( sender() )->text() );
    00347     emit valueChanged(m_value);
    00348     m_dirty = true;
    00349 }
    00350
    00351 void KFileMetaInfoWidget::slotDateChanged(const QDate& value)
    00352 {
    00353     Q_ASSERT(m_widget->inherits("QDateEdit"));
    00354     m_value = QVariant(value);
    00355     emit valueChanged(m_value);
    00356     m_dirty = true;
    00357 }
    00358
    00359 void KFileMetaInfoWidget::slotTimeChanged(const QTime& value)
    00360 {
    00361     Q_ASSERT(m_widget->inherits("QTimeEdit"));
    00362     m_value = QVariant(value);
    00363     emit valueChanged(m_value);
    00364     m_dirty = true;
    00365 }
    00366
    00367 void KFileMetaInfoWidget::slotDateTimeChanged(const QDateTime& value)
    00368 {
    00369     Q_ASSERT(m_widget->inherits("QDateTimeEdit"));
    00370     m_value = QVariant(value);
    00371     emit valueChanged(m_value);
    00372     m_dirty = true;
    00373 }
    00374
    00375 #include "kfilemetainfowidget.moc"

This file is part of the documentation for kio Library Version 3.4.1.
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