src/kitemviews/kitemlistselectionmanager.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   Based on the Itemviews NG project from Trolltech Labs:                *
   5  *   http://qt.gitorious.org/qt-labs/itemviews-ng                          *
   6  *                                                                         *
   7  *   This program is free software; you can redistribute it and/or modify  *
   8  *   it under the terms of the GNU General Public License as published by  *
   9  *   the Free Software Foundation; either version 2 of the License, or     *
  10  *   (at your option) any later version.                                   *
  11  *                                                                         *
  12  *   This program is distributed in the hope that it will be useful,       *
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  15  *   GNU General Public License for more details.                          *
  16  *                                                                         *
  17  *   You should have received a copy of the GNU General Public License     *
  18  *   along with this program; if not, write to the                         *
  19  *   Free Software Foundation, Inc.,                                       *
  20  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  21  ***************************************************************************/
  22
  23 #include "kitemlistselectionmanager.h"
  24
  25 #include "kitemmodelbase.h"
  26
  27 KItemListSelectionManager::KItemListSelectionManager(QObject* parent) :
  28     QObject(parent),
  29     m_currentItem(-1),
  30     m_anchorItem(-1),
  31     m_model(0)
  32 {
  33 }
  34
  35 KItemListSelectionManager::~KItemListSelectionManager()
  36 {
  37 }
  38
  39 void KItemListSelectionManager::setCurrentItem(int current)
  40 {
  41     const int previous = m_currentItem;
  42     if (m_model && current < m_model->count()) {
  43         m_currentItem = current;
  44     } else {
  45         m_currentItem = -1;
  46     }
  47
  48     if (m_currentItem != previous) {
  49         emit currentChanged(m_currentItem, previous);
  50     }
  51 }
  52
  53 int KItemListSelectionManager::currentItem() const
  54 {
  55     return m_currentItem;
  56 }
  57
  58 void KItemListSelectionManager::setAnchorItem(int anchor)
  59 {
  60     const int previous = m_anchorItem;
  61     if (m_model && anchor < m_model->count()) {
  62         m_anchorItem = anchor;
  63     } else {
  64         m_anchorItem = -1;
  65     }
  66
  67     if (m_anchorItem != previous) {
  68         emit anchorChanged(m_anchorItem, previous);
  69     }
  70 }
  71
  72 int KItemListSelectionManager::anchorItem() const
  73 {
  74     return m_anchorItem;
  75 }
  76
  77 KItemModelBase* KItemListSelectionManager::model() const
  78 {
  79     return m_model;
  80 }
  81
  82 void KItemListSelectionManager::setModel(KItemModelBase* model)
  83 {
  84     m_model = model;
  85 }
  86
  87 #include "kitemlistselectionmanager.moc"