src/dolphinfileitemdelegate.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2008 by Peter Penz <peter.penz@gmx.at>                  *
   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 "dolphinfileitemdelegate.h"
  21
  22 #include <dolphinmodel.h>
  23 #include <kfileitem.h>
  24
  25 #include <QAbstractItemModel>
  26 #include <QAbstractProxyModel>
  27 #include <QFontMetrics>
  28 #include <QPainter>
  29
  30 DolphinFileItemDelegate::DolphinFileItemDelegate(QObject* parent) :
  31     KFileItemDelegate(parent),
  32     m_hasMinimizedNameColumn(false)
  33 {
  34 }
  35
  36 DolphinFileItemDelegate::~DolphinFileItemDelegate()
  37 {
  38 }
  39
  40 void DolphinFileItemDelegate::paint(QPainter* painter,
  41                                     const QStyleOptionViewItem& option,
  42                                     const QModelIndex& index) const
  43 {
  44     const QAbstractProxyModel* proxyModel = static_cast<const QAbstractProxyModel*>(index.model());
  45     const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(proxyModel->sourceModel());
  46
  47     if (m_hasMinimizedNameColumn && (index.column() == KDirModel::Name)) {
  48         QStyleOptionViewItemV4 opt(option);
  49
  50         const QModelIndex dirIndex = proxyModel->mapToSource(index);
  51         const KFileItem item = dolphinModel->itemForIndex(dirIndex);
  52         if (!item.isNull()) {
  53             // symbolic links are displayed in an italic font
  54             if (item.isLink()) {
  55                 opt.font.setItalic(true);
  56             }
  57
  58             const int width = nameColumnWidth(item.text(), opt);
  59             opt.rect.setWidth(width);
  60         }
  61         KFileItemDelegate::paint(painter, opt, index);
  62     } else {
  63         KFileItemDelegate::paint(painter, option, index);
  64     }
  65
  66     if (dolphinModel->hasRevisionData()) {
  67         // The currently shown items are under revision control. Show the current revision
  68         // state above the decoration.
  69         const QModelIndex dirIndex = proxyModel->mapToSource(index);
  70         const QModelIndex revisionIndex = dolphinModel->index(dirIndex.row(), DolphinModel::Revision);
  71         const QVariant data = dolphinModel->data(revisionIndex, Qt::DecorationRole);
  72         const DolphinModel::RevisionState state = static_cast<DolphinModel::RevisionState>(data.toInt());
  73
  74         if (state != DolphinModel::LocalRevision) {
  75             // TODO: The following code is just a proof of concept. Icons will be used later...
  76             QColor color(200, 0, 0, 32);
  77             switch (state) {
  78             case DolphinModel::LatestRevision: color = QColor(0, 180, 0, 32); break;
  79             // ...
  80             default: break;
  81             }
  82             painter->fillRect(option.rect, color);
  83         }
  84     }
  85 }
  86
  87 int DolphinFileItemDelegate::nameColumnWidth(const QString& name, const QStyleOptionViewItem& option)
  88 {
  89     QFontMetrics fontMetrics(option.font);
  90     int width = option.decorationSize.width() + fontMetrics.width(name) + 16;
  91
  92     const int defaultWidth = option.rect.width();
  93     if ((defaultWidth > 0) && (defaultWidth < width)) {
  94         width = defaultWidth;
  95     }
  96     return width;
  97 }
  98