kio

kmetaprops.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., 51 Franklin Street, Fifth Floor,
00016     Boston, MA 02110-1301, USA.
00017   
00018     $Id: kmetaprops.cpp 532794 2006-04-22 20:33:21Z pfeiffer $
00019  */
00020 
00021 #include "kmetaprops.h"
00022 
00023 #include <kdebug.h>
00024 #include <kfilemetainfowidget.h>
00025 #include <kfilemetainfo.h>
00026 #include <kglobal.h>
00027 #include <kglobalsettings.h>
00028 #include <klocale.h>
00029 #include <kprotocolinfo.h>
00030 
00031 #include <qvalidator.h>
00032 #include <qlayout.h>
00033 #include <qlabel.h>
00034 #include <qfileinfo.h>
00035 #include <qdatetime.h>
00036 #include <qstylesheet.h>
00037 #include <qvgroupbox.h>
00038 
00039 #undef Bool
00040 
00041 class MetaPropsScrollView : public QScrollView
00042 {
00043 public:
00044     MetaPropsScrollView(QWidget* parent = 0, const char* name = 0)
00045         : QScrollView(parent, name)
00046     {
00047       setFrameStyle(QFrame::NoFrame);
00048       m_frame = new QFrame(viewport(), "MetaPropsScrollView::m_frame");
00049       m_frame->setFrameStyle(QFrame::NoFrame);
00050       addChild(m_frame, 0, 0);
00051     };
00052 
00053     QFrame* frame() {return m_frame;};
00054 
00055 protected:
00056     virtual void viewportResizeEvent(QResizeEvent* ev)
00057     {
00058       QScrollView::viewportResizeEvent(ev);
00059       m_frame->resize( kMax(m_frame->sizeHint().width(), ev->size().width()),
00060                        kMax(m_frame->sizeHint().height(), ev->size().height()));
00061     };
00062 
00063 private:
00064       QFrame* m_frame;
00065 };
00066 
00067 class KFileMetaPropsPlugin::KFileMetaPropsPluginPrivate
00068 {
00069 public:
00070     KFileMetaPropsPluginPrivate()  {}
00071     ~KFileMetaPropsPluginPrivate() {}
00072 
00073     QFrame*                       m_frame;
00074     QGridLayout*                  m_framelayout;
00075     KFileMetaInfo                 m_info;
00076 //    QPushButton*                m_add;
00077     QPtrList<KFileMetaInfoWidget> m_editWidgets;
00078 };
00079 
00080 KFileMetaPropsPlugin::KFileMetaPropsPlugin(KPropertiesDialog* props)
00081   : KPropsDlgPlugin(props)
00082 {
00083     d = new KFileMetaPropsPluginPrivate;
00084 
00085     KFileItem * fileitem = properties->item();
00086     kdDebug(250) << "KFileMetaPropsPlugin constructor" << endl;
00087 
00088     d->m_info  = fileitem->metaInfo();
00089     if (!d->m_info.isValid())
00090     {
00091         d->m_info = KFileMetaInfo(properties->kurl().path(-1));
00092         fileitem->setMetaInfo(d->m_info);
00093     }
00094 
00095     if ( properties->items().count() > 1 )
00096     {
00097         // not yet supported
00098         // we should allow setting values for a list of files. Itt makes sense
00099         // in some cases, like the album of a list of mp3s
00100         return;
00101     }
00102 
00103     createLayout();
00104 
00105     setDirty(true);
00106 }
00107 
00108 void KFileMetaPropsPlugin::createLayout()
00109 {
00110     QFileInfo file_info(properties->item()->url().path());
00111 
00112     kdDebug(250) << "KFileMetaPropsPlugin::createLayout" << endl;
00113 
00114     // is there any valid and non-empty info at all?
00115     if ( !d->m_info.isValid() || (d->m_info.preferredKeys()).isEmpty() )
00116         return;
00117 
00118     // now get a list of groups
00119     KFileMetaInfoProvider* prov = KFileMetaInfoProvider::self();
00120     QStringList groupList = d->m_info.preferredGroups();
00121 
00122     const KFileMimeTypeInfo* mtinfo = prov->mimeTypeInfo(d->m_info.mimeType());
00123     if (!mtinfo) 
00124     {
00125         kdDebug(7034) << "no mimetype info there\n";
00126         return;
00127     }
00128 
00129     // let the dialog create the page frame
00130     QFrame* topframe = properties->addPage(i18n("&Meta Info"));
00131     topframe->setFrameStyle(QFrame::NoFrame);
00132     QVBoxLayout* tmp = new QVBoxLayout(topframe);
00133 
00134     // create a scroll view in the page
00135     MetaPropsScrollView* view = new MetaPropsScrollView(topframe);
00136 
00137     tmp->addWidget(view);
00138 
00139     d->m_frame = view->frame();
00140 
00141     QVBoxLayout *toplayout = new QVBoxLayout(d->m_frame);
00142     toplayout->setSpacing(KDialog::spacingHint());
00143 
00144     for (QStringList::Iterator git=groupList.begin(); 
00145             git!=groupList.end(); ++git)
00146     {
00147         kdDebug(7033) << *git << endl;
00148 
00149         QStringList itemList = d->m_info.group(*git).preferredKeys();
00150         if (itemList.isEmpty())
00151             continue;
00152 
00153         QGroupBox *groupBox = new QGroupBox(2, Qt::Horizontal, 
00154             QStyleSheet::escape(mtinfo->groupInfo(*git)->translatedName()), 
00155             d->m_frame);
00156 
00157         toplayout->addWidget(groupBox);
00158 
00159         QValueList<KFileMetaInfoItem> readItems;
00160         QValueList<KFileMetaInfoItem> editItems;
00161 
00162         for (QStringList::Iterator iit = itemList.begin(); 
00163                 iit!=itemList.end(); ++iit)
00164         {
00165             KFileMetaInfoItem item = d->m_info[*git][*iit];
00166             if ( !item.isValid() ) continue;
00167 
00168             bool editable = file_info.isWritable() && item.isEditable();
00169 
00170             if (editable)
00171                 editItems.append( item );
00172             else
00173                 readItems.append( item );
00174         }
00175 
00176         KFileMetaInfoWidget* w = 0L;
00177         // then first add the editable items to the layout
00178         for (QValueList<KFileMetaInfoItem>::Iterator iit= editItems.begin(); 
00179                 iit!=editItems.end(); ++iit)
00180         {
00181             QLabel* l = new QLabel((*iit).translatedKey() + ":", groupBox);
00182             l->setAlignment( AlignAuto | AlignTop | ExpandTabs );
00183             QValidator* val = mtinfo->createValidator(*git, (*iit).key());
00184             if (!val) kdDebug(7033) << "didn't get a validator for " << *git << "/" << (*iit).key() << endl;
00185             w = new KFileMetaInfoWidget(*iit, val, groupBox);
00186             d->m_editWidgets.append( w );
00187             connect(w, SIGNAL(valueChanged(const QVariant&)), this, SIGNAL(changed()));
00188         }
00189 
00190         // and then the read only items
00191         for (QValueList<KFileMetaInfoItem>::Iterator iit= readItems.begin(); 
00192                 iit!=readItems.end(); ++iit)
00193         {
00194             QLabel* l = new QLabel((*iit).translatedKey() + ":", groupBox);
00195             l->setAlignment( AlignAuto | AlignTop | ExpandTabs );
00196             (new KFileMetaInfoWidget(*iit, KFileMetaInfoWidget::ReadOnly, 0L, groupBox));
00197         }
00198     }
00199 
00200     toplayout->addStretch(1);
00201 
00202     // the add key (disabled until fully implemented)
00203 /*    d->m_add = new QPushButton(i18n("&Add"), topframe);
00204     d->m_add->setSizePolicy(QSizePolicy(QSizePolicy::Fixed,
00205                                         QSizePolicy::Fixed));
00206     connect(d->m_add, SIGNAL(clicked()), this, SLOT(slotAdd()));
00207     tmp->addWidget(d->m_add);
00208 
00209     // if nothing can be added, deactivate it
00210     if ( !d->m_info.supportsVariableKeys() )
00211     {
00212         // if supportedKeys() does contain anything not in preferredKeys,
00213         // we have something addable
00214 
00215         QStringList sk = d->m_info.supportedKeys();
00216         d->m_add->setEnabled(false);
00217         for (QStringList::Iterator it = sk.begin(); it!=sk.end(); ++it)
00218         {
00219                 if ( l.find(*it)==l.end() )
00220                 {
00221                     d->m_add->setEnabled(true);
00222                     kdDebug(250) << "**first addable key is " << (*it).latin1() << "**" <<endl;
00223                     break;
00224                 }
00225                 kdDebug(250) << "**already existing key is " << (*it).latin1() << "**" <<endl;
00226         }
00227     } */
00228 }
00229 
00230 /*void KFileMetaPropsPlugin::slotAdd()
00231 {
00232     // add a lineedit for the name
00233 
00234 
00235 
00236     // insert the item in the list
00237 
00238 }*/
00239 
00240 KFileMetaPropsPlugin::~KFileMetaPropsPlugin()
00241 {
00242   delete d;
00243 }
00244 
00245 bool KFileMetaPropsPlugin::supports( KFileItemList _items )
00246 {
00247 #ifdef _GNUC
00248 #warning TODO: Add support for more than one item
00249 #endif
00250   if (KExecPropsPlugin::supports(_items) || KURLPropsPlugin::supports(_items))
00251      return false; // Having both is redundant.
00252 
00253   bool metaDataEnabled = KGlobalSettings::showFilePreview(_items.first()->url());
00254   return _items.count() == 1 && metaDataEnabled;
00255 }
00256 
00257 void KFileMetaPropsPlugin::applyChanges()
00258 {
00259   kdDebug(250) << "applying changes" << endl;
00260   // insert the fields that changed into the info object
00261 
00262   QPtrListIterator<KFileMetaInfoWidget> it( d->m_editWidgets );
00263   KFileMetaInfoWidget* w;
00264   for (; (w = it.current()); ++it) w->apply();
00265   d->m_info.applyChanges(properties->kurl().path());
00266 }
00267 
00268 #include "kmetaprops.moc"
kio

kmetaprops.cpp

kio

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