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 <kbuttonbox.h>
00025 #include <klistbox.h>
00026 #include <klocale.h>
00027 #include <kmessagebox.h>
00028 
00029 #include <qgroupbox.h>
00030 #include <qlayout.h>
00031 
00032 #include "resource.h"
00033 
00034 #include "selectdialog.h"
00035 
00036 using namespace KRES;
00037 
00038 SelectDialog::SelectDialog( QPtrList<Resource> list, QWidget *parent,
00039                             const char *name )
00040   : KDialog( parent, name, true )
00041 {
00042   setCaption( i18n( "Resource Selection" ) );
00043   resize( 300, 200 );
00044 
00045   QVBoxLayout *mainLayout = new QVBoxLayout( this );
00046   mainLayout->setMargin( marginHint() );
00047 
00048   QGroupBox *groupBox = new QGroupBox( 2, Qt::Horizontal,  this );
00049   groupBox->setTitle( i18n( "Resources" ) );
00050 
00051   mResourceId = new KListBox( groupBox );
00052 
00053   mainLayout->addWidget( groupBox );
00054 
00055   mainLayout->addSpacing( 10 );
00056 
00057   KButtonBox *buttonBox = new KButtonBox( this );
00058 
00059   buttonBox->addStretch();
00060   buttonBox->addButton( KStdGuiItem::ok(), this, SLOT( accept() ) );
00061   buttonBox->addButton( KStdGuiItem::cancel(), this, SLOT( reject() ) );
00062   buttonBox->layout();
00063 
00064   mainLayout->addWidget( buttonBox );
00065 
00066   // setup listbox
00067   uint counter = 0;
00068   for ( uint i = 0; i < list.count(); ++i ) {
00069     Resource *resource = list.at( i );
00070     if ( resource && !resource->readOnly() ) {
00071       mResourceMap.insert( counter, resource );
00072       mResourceId->insertItem( resource->resourceName() );
00073       counter++;
00074     }
00075   }
00076 
00077   mResourceId->setCurrentItem( 0 );
00078   connect( mResourceId, SIGNAL(returnPressed(QListBoxItem*)),
00079            SLOT(accept()) );
00080   connect( mResourceId, SIGNAL( executed( QListBoxItem* ) ),
00081            SLOT( accept() ) );
00082 }
00083 
00084 Resource *SelectDialog::resource()
00085 {
00086   if ( mResourceId->currentItem() != -1 )
00087     return mResourceMap[ mResourceId->currentItem() ];
00088   else
00089     return 0;
00090 }
00091 
00092 Resource *SelectDialog::getResource( QPtrList<Resource> list, QWidget *parent )
00093 {
00094   if ( list.count() == 0 ) {
00095     KMessageBox::error( parent, i18n( "There is no resource available!" ) );
00096     return 0;
00097   }
00098 
00099   if ( list.count() == 1 ) return list.first();
00100 
00101   // the following lines will return a writeable resource if only _one_ writeable
00102   // resource exists
00103   Resource *found = 0;
00104   Resource *it = list.first();
00105   while ( it ) {
00106     if ( !it->readOnly() ) {
00107       if ( found ) {
00108         found = 0;
00109     break;
00110       } else
00111         found = it;
00112     }
00113     it = list.next();
00114   }
00115 
00116   if ( found )
00117     return found;
00118 
00119   SelectDialog dlg( list, parent );
00120   if ( dlg.exec() == KDialog::Accepted ) return dlg.resource();
00121   else return 0;
00122 }
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