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kresources

selectdialog.cpp
00001 /*
00002     This file is part of libkresources.
00003 
00004     Copyright (c) 2002 Tobias Koenig <tokoe@kde.org>
00005     Copyright (c) 2002 Jan-Pascal van Best <janpascal@vanbest.org>
00006     Copyright (c) 2003 Cornelius Schumacher <schumacher@kde.org>
00007 
00008     This library is free software; you can redistribute it and/or
00009     modify it under the terms of the GNU Library General Public
00010     License as published by the Free Software Foundation; either
00011     version 2 of the License, or (at your option) any later version.
00012 
00013     This library is distributed in the hope that it will be useful,
00014     but WITHOUT ANY WARRANTY; without even the implied warranty of
00015     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016     Library General Public License for more details.
00017 
00018     You should have received a copy of the GNU Library General Public License
00019     along with this library; see the file COPYING.LIB.  If not, write to
00020     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00021     Boston, MA 02110-1301, USA.
00022 */
00023 
00024 #include "selectdialog.h"
00025 
00026 #include <klocale.h>
00027 #include <kmessagebox.h>
00028 
00029 #include <QtGui/QGroupBox>
00030 #include <QtGui/QLayout>
00031 #include <QtGui/QListWidget>
00032 
00033 #include "resource.h"
00034 
00035 using namespace KRES;
00036 
00037 class SelectDialog::SelectDialogPrivate
00038 {
00039   public:
00040     QListWidget *mResourceId;
00041     QMap<int, Resource*> mResourceMap;
00042 };
00043 
00044 static bool resourceNameLessThan( Resource *a, Resource *b )
00045 {
00046   return a->resourceName() < b->resourceName();
00047 }
00048 
00049 SelectDialog::SelectDialog( QList<Resource *> list, QWidget *parent )
00050   : KDialog( parent ), d( new SelectDialogPrivate )
00051 {
00052   setModal(true);
00053   setCaption( i18n( "Resource Selection" ) );
00054   resize( 300, 200 );
00055   setButtons( Ok|Cancel );
00056   setDefaultButton( Ok );
00057 
00058   QWidget *widget = new QWidget( this );
00059   setMainWidget( widget );
00060 
00061   QVBoxLayout *mainLayout = new QVBoxLayout( widget );
00062   mainLayout->setMargin( 0 );
00063 
00064   QGroupBox *groupBox = new QGroupBox( widget );
00065   QGridLayout *grid = new QGridLayout;
00066   groupBox->setLayout( grid );
00067   groupBox->setTitle( i18n( "Resources" ) );
00068 
00069   d->mResourceId = new QListWidget( groupBox );
00070   grid->addWidget( d->mResourceId, 0, 0 );
00071 
00072   mainLayout->addWidget( groupBox );
00073 
00074   // sort resources by name
00075   qSort( list.begin(), list.end(), resourceNameLessThan );
00076 
00077   // setup listbox
00078   uint counter = 0;
00079   for ( int i = 0; i < list.count(); ++i ) {
00080     Resource *resource = list.at( i );
00081     if ( resource && !resource->readOnly() ) {
00082       d->mResourceMap.insert( counter, resource );
00083       d->mResourceId->addItem( resource->resourceName() );
00084       counter++;
00085     }
00086   }
00087 
00088   d->mResourceId->setCurrentRow( 0 );
00089   connect( d->mResourceId, SIGNAL(itemActivated(QListWidgetItem*)),
00090            SLOT(accept()) );
00091 }
00092 
00093 SelectDialog::~SelectDialog()
00094 {
00095   delete d;
00096 }
00097 
00098 Resource *SelectDialog::resource()
00099 {
00100   if ( d->mResourceId->currentRow() != -1 ) {
00101     return d->mResourceMap[ d->mResourceId->currentRow() ];
00102   } else {
00103     return 0;
00104   }
00105 }
00106 
00107 Resource *SelectDialog::getResource( QList<Resource *> list, QWidget *parent )
00108 {
00109   if ( list.count() == 0 ) {
00110     KMessageBox::error( parent, i18n( "There is no resource available." ) );
00111     return 0;
00112   }
00113 
00114   if ( list.count() == 1 ) {
00115     return list.first();
00116   }
00117 
00118   // the following lines will return a writeable resource if only _one_
00119   // writeable resource exists
00120   Resource *found = 0;
00121 
00122   for ( int i=0; i< list.size(); ++i ) {
00123     if ( !list.at(i)->readOnly() ) {
00124       if ( found ) {
00125         found = 0;
00126         break;
00127       }
00128     } else {
00129       found = list.at(i);
00130     }
00131   }
00132 
00133   if ( found ) {
00134     return found;
00135   }
00136 
00137   SelectDialog dlg( list, parent );
00138   if ( dlg.exec() == KDialog::Accepted ) {
00139     return dlg.resource();
00140   } else {
00141     return 0;
00142   }
00143 }
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