kexi

kexidataawarepropertyset.cpp

00001 /* This file is part of the KDE project
00002    Copyright (C) 2004-2005 Jaroslaw Staniek <js@iidea.pl>
00003 
00004    This program is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Library General Public
00006    License as published by the Free Software Foundation; either
00007    version 2 of the License, or (at your option) any later version.
00008 
00009    This program is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Library General Public License for more details.
00013 
00014    You should have received a copy of the GNU Library General Public License
00015    along with this program; see the file COPYING.  If not, write to
00016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  * Boston, MA 02110-1301, USA.
00018 */
00019 
00020 #include "kexidataawarepropertyset.h"
00021 #include "kexitableviewdata.h"
00022 #include "kexidataawareobjectiface.h"
00023 
00024 #include <koproperty/property.h>
00025 #include <kexiviewbase.h>
00026 
00027 #define MAX_FIELDS 101 //nice prime number (default prop. set vector size)
00028 
00029 KexiDataAwarePropertySet::KexiDataAwarePropertySet(KexiViewBase *view,
00030     KexiDataAwareObjectInterface* dataObject)
00031  : QObject( view, QCString(view->name())+"KexiDataAwarePropertySet" )
00032  , m_view(view)
00033  , m_dataObject(dataObject)
00034  , m_row(-99)
00035 {
00036     m_sets.setAutoDelete(true);
00037 
00038 //  connect(m_dataObject, SIGNAL(dataSet(KexiTableViewData*)),
00039 //      this, SLOT(slotDataSet(KexiTableViewData*)));
00040     m_dataObject->connectDataSetSignal(this, SLOT(slotDataSet(KexiTableViewData*)));
00041 //  connect(m_dataObject, SIGNAL(cellSelected(int,int)),
00042 //      this, SLOT(slotCellSelected(int,int)));
00043     m_dataObject->connectCellSelectedSignal(this, SLOT(slotCellSelected(int,int)));
00044 //
00045     slotDataSet( m_dataObject->data() );
00046     const bool wasDirty = view->dirty();
00047     clear();
00048     if (!wasDirty)
00049         view->setDirty(false);
00050 }
00051 
00052 KexiDataAwarePropertySet::~KexiDataAwarePropertySet()
00053 {
00054 }
00055 
00056 void KexiDataAwarePropertySet::slotDataSet( KexiTableViewData *data )
00057 {
00058     if (!m_currentTVData.isNull()) {
00059         m_currentTVData->disconnect( this );
00060         clear();
00061     }
00062     m_currentTVData = data;
00063     if (!m_currentTVData.isNull()) {
00064         connect(m_currentTVData, SIGNAL(rowDeleted()), this, SLOT(slotRowDeleted()));
00065         connect(m_currentTVData, SIGNAL(rowsDeleted( const QValueList<int> & )),
00066             this, SLOT(slotRowsDeleted( const QValueList<int> & )));
00067         connect(m_currentTVData, SIGNAL(rowInserted(KexiTableItem*,uint,bool)),
00068             this, SLOT(slotRowInserted(KexiTableItem*,uint,bool)));
00069         connect(m_currentTVData, SIGNAL(reloadRequested()),
00070             this, SLOT(slotReloadRequested()));
00071     }
00072 }
00073 
00074 void KexiDataAwarePropertySet::removeCurrentPropertySet()
00075 {
00076     remove( m_dataObject->currentRow() );
00077 }
00078 
00079 void KexiDataAwarePropertySet::remove(uint row)
00080 {
00081     KoProperty::Set *set = m_sets.at(row);
00082     if (!set)
00083         return;
00084     set->debug();
00085     m_sets.remove(row);
00086     m_view->setDirty();
00087     m_view->propertySetSwitched();
00088 }
00089 
00090 uint KexiDataAwarePropertySet::size() const
00091 {
00092     return m_sets.size();
00093 }
00094 
00095 void KexiDataAwarePropertySet::clear(uint minimumSize)
00096 {
00097     m_sets.clear();
00098     m_sets.resize(QMAX(minimumSize, MAX_FIELDS));
00099     m_view->setDirty(true);
00100     m_view->propertySetSwitched();
00101 }
00102 
00103 void KexiDataAwarePropertySet::slotReloadRequested()
00104 {
00105     clear();
00106 }
00107 
00108 void KexiDataAwarePropertySet::insert(uint row, KoProperty::Set* set, bool newOne)
00109 {
00110     if (!set || row >= m_sets.size()) {
00111         kexiwarn << "KexiDataAwarePropertySet::insert() invalid args: rew="<< row<< " propertyset="<< set<< endl;
00112         return;
00113     }
00114     if (set->parent() && set->parent()!=this) {
00115         kexiwarn << "KexiDataAwarePropertySet::insert() propertyset's parent must be NULL or this KexiDataAwarePropertySet" << endl;
00116         return;
00117     }
00118 
00119     m_sets.insert(row, set);
00120 
00121     connect(set, SIGNAL(propertyChanged(KoProperty::Set&, KoProperty::Property&)), m_view, SLOT(setDirty()));
00122 
00123     if (newOne) {
00124         //add a special property indicating that this is brand new set,
00125         //not just changed
00126         KoProperty::Property* prop = new KoProperty::Property("newrow");
00127         prop->setVisible(false);
00128         set->addProperty( prop );
00129         m_view->setDirty();
00130     }
00131 }
00132 
00133 KoProperty::Set* KexiDataAwarePropertySet::currentPropertySet() const
00134 {
00135     return (m_dataObject->currentRow() >= 0) ? m_sets.at( m_dataObject->currentRow() ) : 0;
00136 }
00137 
00138 uint KexiDataAwarePropertySet::currentRow() const
00139 {
00140     return m_dataObject->currentRow();
00141 }
00142 
00143 void KexiDataAwarePropertySet::slotRowDeleted()
00144 {
00145     m_view->setDirty();
00146     removeCurrentPropertySet();
00147 
00148     //let's move up all property sets that are below that deleted
00149     m_sets.setAutoDelete(false);//to avoid auto deleting in insert()
00150     const int r = m_dataObject->currentRow();
00151     for (int i=r;i<int(m_sets.size()-1);i++) {
00152         KoProperty::Set *set = m_sets[i+1];
00153         m_sets.insert( i , set );
00154     }
00155     m_sets.insert( m_sets.size()-1, 0 );
00156     m_sets.setAutoDelete(true);//revert the flag
00157 
00158     m_view->propertySetSwitched();
00159     emit rowDeleted();
00160 }
00161 
00162 void KexiDataAwarePropertySet::slotRowsDeleted( const QValueList<int> &rows )
00163 {
00164     //let's move most property sets up & delete unwanted
00165     m_sets.setAutoDelete(false);//to avoid auto deleting in insert()
00166     const int orig_size = size();
00167     int prev_r = -1;
00168     int num_removed = 0, cur_r = -1;
00169     for (QValueList<int>::ConstIterator r_it = rows.constBegin(); r_it!=rows.constEnd() && *r_it < orig_size; ++r_it) {
00170         cur_r = *r_it;// - num_removed;
00171         if (prev_r>=0) {
00172 //          kdDebug() << "move " << prev_r+num_removed-1 << ".." << cur_r-1 << " to " << prev_r+num_removed-1 << ".." << cur_r-2 << endl;
00173             int i=prev_r;
00174             KoProperty::Set *set = m_sets.take(i+num_removed);
00175             kdDebug() << "property set " << i+num_removed << " deleted" << endl;
00176             delete set;
00177             num_removed++;
00178             for (; (i+num_removed)<cur_r; i++) {
00179                 m_sets.insert( i, m_sets[i+num_removed] );
00180                 kdDebug() << i << " <- " << i+num_removed << endl;
00181             }
00182         }
00183         prev_r = cur_r - num_removed;
00184     }
00185     //move remaining property sets up
00186     if (cur_r>=0) {
00187         KoProperty::Set *set = m_sets.take(cur_r);
00188         kdDebug() << "property set " << cur_r << " deleted" << endl;
00189         delete set;
00190         num_removed++;
00191         for (int i=prev_r; (i+num_removed)<orig_size; i++) {
00192             m_sets.insert( i, m_sets[i+num_removed] );
00193             kdDebug() << i << " <- " << i+num_removed << endl;
00194         }
00195     }
00196     //finally: clear last rows
00197     for (int i=orig_size-num_removed; i<orig_size; i++) {
00198         kdDebug() << i << " <- zero" << endl;
00199         m_sets.insert( i, 0 );
00200     }
00201     m_sets.setAutoDelete(true);//revert the flag
00202 
00203     if (num_removed>0)
00204         m_view->setDirty();
00205     m_view->propertySetSwitched();
00206 }
00207 
00208 //void KexiDataAwarePropertySet::slotEmptyRowInserted(KexiTableItem*, uint /*index*/)
00209 void KexiDataAwarePropertySet::slotRowInserted(KexiTableItem*, uint row, bool /*repaint*/)
00210 {
00211     m_view->setDirty();
00212 
00213     //let's move down all property set that are below
00214     m_sets.setAutoDelete(false);//to avoid auto deleting in insert()
00215 //  const int r = m_dataObject->currentRow();
00216     m_sets.resize(m_sets.size()+1);
00217     for (int i=int(m_sets.size())-1; i>(int)row; i--) {
00218         KoProperty::Set *set = m_sets[i-1];
00219         m_sets.insert( i , set );
00220     }
00221     m_sets.insert( row, 0 );
00222     m_sets.setAutoDelete(true);//revert the flag
00223 
00224     m_view->propertySetSwitched();
00225 
00226     emit rowInserted();
00227 }
00228 
00229 void KexiDataAwarePropertySet::slotCellSelected(int, int row)
00230 {
00231     if(row == m_row)
00232         return;
00233     m_row = row;
00234     m_view->propertySetSwitched();
00235 }
00236 
00237 KoProperty::Set* KexiDataAwarePropertySet::findPropertySetForItem(KexiTableItem& item)
00238 {
00239     if (m_currentTVData.isNull())
00240         return 0;
00241     int idx = m_currentTVData->findRef(&item);
00242     if (idx<0)
00243         return 0;
00244     return m_sets[idx];
00245 }
00246 
00247 int KexiDataAwarePropertySet::findRowForPropertyValue(const QCString& propertyName, const QVariant& value)
00248 {
00249     const int size = m_sets.size();
00250     for (int i=0; i<size; i++) {
00251         KoProperty::Set *set = m_sets[i];
00252         if (!set || !set->contains(propertyName))
00253             continue;
00254         if (set->property(propertyName).value() == value)
00255             return i;
00256     }
00257     return -1;
00258 }
00259 
00260 #include "kexidataawarepropertyset.moc"
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