src/dolphindetailsview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz                                      *
   3  *   peter.penz@gmx.at                                                     *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphindetailsview.h"
  22
  23 #include "dolphincontroller.h"
  24 #include "dolphinsettings.h"
  25 #include "dolphinsortfilterproxymodel.h"
  26 #include "viewproperties.h"
  27
  28 #include "dolphin_detailsmodesettings.h"
  29
  30 #include <kdirmodel.h>
  31 #include <kfileitemdelegate.h>
  32
  33 #include <QHeaderView>
  34
  35 DolphinDetailsView::DolphinDetailsView(QWidget* parent, DolphinController* controller) :
  36     QTreeView(parent),
  37     m_controller(controller)
  38 {
  39     Q_ASSERT(controller != 0);
  40
  41     setAcceptDrops(true);
  42     setRootIsDecorated(false);
  43     setSortingEnabled(true);
  44     setUniformRowHeights(true);
  45     setSelectionBehavior(SelectItems);
  46     setDragDropMode(QAbstractItemView::DragDrop);
  47     setDropIndicatorShown(false);
  48
  49     viewport()->setAttribute(Qt::WA_Hover);
  50
  51     const ViewProperties props(controller->url());
  52     setSortIndicatorSection(props.sorting());
  53     setSortIndicatorOrder(props.sortOrder());
  54
  55     connect(header(), SIGNAL(sectionClicked(int)),
  56             this, SLOT(synchronizeSortingState(int)));
  57
  58     connect(parent, SIGNAL(sortingChanged(DolphinView::Sorting)),
  59             this, SLOT(setSortIndicatorSection(DolphinView::Sorting)));
  60     connect(parent, SIGNAL(sortOrderChanged(Qt::SortOrder)),
  61             this, SLOT(setSortIndicatorOrder(Qt::SortOrder)));
  62
  63     connect(this, SIGNAL(clicked(const QModelIndex&)),
  64             controller, SLOT(triggerItem(const QModelIndex&)));
  65     connect(this, SIGNAL(activated(const QModelIndex&)),
  66             controller, SLOT(triggerItem(const QModelIndex&)));
  67
  68     connect(controller, SIGNAL(zoomIn()),
  69             this, SLOT(zoomIn()));
  70     connect(controller, SIGNAL(zoomOut()),
  71             this, SLOT(zoomOut()));
  72
  73     // apply the details mode settings to the widget
  74     const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
  75     Q_ASSERT(settings != 0);
  76
  77     m_viewOptions = QTreeView::viewOptions();
  78     m_viewOptions.font = QFont(settings->fontFamily(), settings->fontSize());
  79     updateDecorationSize();
  80
  81     KFileItemDelegate* delegate = new KFileItemDelegate(parent);
  82     setItemDelegate(delegate);
  83 }
  84
  85 DolphinDetailsView::~DolphinDetailsView()
  86 {
  87 }
  88
  89 bool DolphinDetailsView::event(QEvent* event)
  90 {
  91     if (event->type() == QEvent::Polish) {
  92         // Assure that by respecting the available width that:
  93         // - the 'Name' column is stretched as large as possible
  94         // - the remaining columns are as small as possible
  95         QHeaderView* headerView = header();
  96         headerView->setStretchLastSection(false);
  97         headerView->setResizeMode(QHeaderView::ResizeToContents);
  98         headerView->setResizeMode(0, QHeaderView::Stretch);
  99
 100         // hide columns if this is indicated by the settings
 101         const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 102         Q_ASSERT(settings != 0);
 103         if (!settings->showDate()) {
 104             hideColumn(KDirModel::ModifiedTime);
 105         }
 106
 107         if (!settings->showPermissions()) {
 108             hideColumn(KDirModel::Permissions);
 109         }
 110
 111         if (!settings->showOwner()) {
 112             hideColumn(KDirModel::Owner);
 113         }
 114
 115         if (!settings->showGroup()) {
 116             hideColumn(KDirModel::Group);
 117         }
 118     }
 119
 120     return QTreeView::event(event);
 121 }
 122
 123 QStyleOptionViewItem DolphinDetailsView::viewOptions() const
 124 {
 125     return m_viewOptions;
 126 }
 127
 128 void DolphinDetailsView::contextMenuEvent(QContextMenuEvent* event)
 129 {
 130     QTreeView::contextMenuEvent(event);
 131     m_controller->triggerContextMenuRequest(event->pos());
 132 }
 133
 134 void DolphinDetailsView::mouseReleaseEvent(QMouseEvent* event)
 135 {
 136     QTreeView::mouseReleaseEvent(event);
 137     m_controller->triggerActivation();
 138 }
 139
 140 void DolphinDetailsView::dragEnterEvent(QDragEnterEvent* event)
 141 {
 142     if (event->mimeData()->hasUrls()) {
 143         event->acceptProposedAction();
 144     }
 145 }
 146
 147 void DolphinDetailsView::dropEvent(QDropEvent* event)
 148 {
 149     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 150     if (!urls.isEmpty()) {
 151         event->acceptProposedAction();
 152         m_controller->indicateDroppedUrls(urls,
 153                                           indexAt(event->pos()),
 154                                           event->source());
 155     }
 156     QTreeView::dropEvent(event);
 157 }
 158
 159 void DolphinDetailsView::setSortIndicatorSection(DolphinView::Sorting sorting)
 160 {
 161     QHeaderView* headerView = header();
 162     headerView->setSortIndicator(sorting, headerView->sortIndicatorOrder());
 163 }
 164
 165 void DolphinDetailsView::setSortIndicatorOrder(Qt::SortOrder sortOrder)
 166 {
 167     QHeaderView* headerView = header();
 168     headerView->setSortIndicator(headerView->sortIndicatorSection(), sortOrder);
 169 }
 170
 171 void DolphinDetailsView::synchronizeSortingState(int column)
 172 {
 173     // The sorting has already been changed in QTreeView if this slot is
 174     // invoked, but Dolphin is not informed about this.
 175     DolphinView::Sorting sorting = DolphinSortFilterProxyModel::sortingForColumn(column);
 176     const Qt::SortOrder sortOrder = header()->sortIndicatorOrder();
 177     m_controller->indicateSortingChange(sorting);
 178     m_controller->indicateSortOrderChange(sortOrder);
 179 }
 180
 181 void DolphinDetailsView::zoomIn()
 182 {
 183     if (isZoomInPossible()) {
 184         DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 185         // TODO: get rid of K3Icon sizes
 186         switch (settings->iconSize()) {
 187             case K3Icon::SizeSmall:  settings->setIconSize(K3Icon::SizeMedium); break;
 188             case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeLarge); break;
 189             default: Q_ASSERT(false); break;
 190         }
 191         updateDecorationSize();
 192     }
 193 }
 194
 195 void DolphinDetailsView::zoomOut()
 196 {
 197     if (isZoomOutPossible()) {
 198         DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 199         // TODO: get rid of K3Icon sizes
 200         switch (settings->iconSize()) {
 201             case K3Icon::SizeLarge:  settings->setIconSize(K3Icon::SizeMedium); break;
 202             case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeSmall); break;
 203             default: Q_ASSERT(false); break;
 204         }
 205         updateDecorationSize();
 206     }
 207 }
 208
 209 bool DolphinDetailsView::isZoomInPossible() const
 210 {
 211     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 212     return settings->iconSize() < K3Icon::SizeLarge;
 213 }
 214
 215 bool DolphinDetailsView::isZoomOutPossible() const
 216 {
 217     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 218     return settings->iconSize() > K3Icon::SizeSmall;
 219 }
 220
 221 void DolphinDetailsView::updateDecorationSize()
 222 {
 223     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 224     const int iconSize = settings->iconSize();
 225     m_viewOptions.decorationSize = QSize(iconSize, iconSize);
 226
 227     m_controller->setZoomInPossible(isZoomInPossible());
 228     m_controller->setZoomOutPossible(isZoomOutPossible());
 229
 230     doItemsLayout();
 231 }
 232
 233 #include "dolphindetailsview.moc"