src/kitemviews/kitemlistheader.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "kitemlistheader_p.h"
  21
  22 #include "kitemmodelbase.h"
  23
  24 #include <QFontMetricsF>
  25 #include <QPainter>
  26 #include <QStyleOptionHeader>
  27
  28 KItemListHeader::KItemListHeader(QGraphicsWidget* parent) :
  29     QGraphicsWidget(parent),
  30     m_model(0)
  31 {
  32     QStyleOptionHeader opt;
  33     const QSize headerSize = style()->sizeFromContents(QStyle::CT_HeaderSection, &opt, QSize());
  34     resize(0, headerSize.height());
  35 }
  36
  37 KItemListHeader::~KItemListHeader()
  38 {
  39 }
  40
  41 void KItemListHeader::setModel(KItemModelBase* model)
  42 {
  43     if (m_model == model) {
  44         return;
  45     }
  46
  47     if (m_model) {
  48         disconnect(m_model, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
  49                    this, SLOT(slotSortRoleChanged(QByteArray,QByteArray)));
  50         disconnect(m_model, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
  51                    this, SLOT(slotSortOrderChanged(Qt::SortOrder,Qt::SortOrder)));
  52     }
  53
  54     m_model = model;
  55
  56     if (m_model) {
  57         connect(m_model, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
  58                 this, SLOT(slotSortRoleChanged(QByteArray,QByteArray)));
  59         connect(m_model, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
  60                 this, SLOT(slotSortOrderChanged(Qt::SortOrder,Qt::SortOrder)));
  61     }
  62 }
  63
  64 KItemModelBase* KItemListHeader::model() const
  65 {
  66     return m_model;
  67 }
  68
  69 void KItemListHeader::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
  70 {
  71     Q_UNUSED(option);
  72     Q_UNUSED(widget);
  73
  74     QStyleOption opt;
  75     opt.init(widget);
  76     opt.rect = rect().toRect();
  77     opt.state |= QStyle::State_Horizontal;
  78     style()->drawControl(QStyle::CE_HeaderEmptyArea, &opt, painter);
  79 }
  80
  81 void KItemListHeader::slotSortRoleChanged(const QByteArray& current, const QByteArray& previous)
  82 {
  83     Q_UNUSED(current);
  84     Q_UNUSED(previous);
  85 }
  86
  87 void KItemListHeader::slotSortOrderChanged(Qt::SortOrder current, Qt::SortOrder previous)
  88 {
  89     Q_UNUSED(current);
  90     Q_UNUSED(previous);
  91 }
  92
  93 #include "kitemlistheader_p.moc"