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
  82 DolphinDetailsView::~DolphinDetailsView()
  83 {
  84 }
  85
  86 bool DolphinDetailsView::event(QEvent* event)
  87 {
  88     if (event->type() == QEvent::Polish) {
  89         // Assure that by respecting the available width that:
  90         // - the 'Name' column is stretched as large as possible
  91         // - the remaining columns are as small as possible
  92         QHeaderView* headerView = header();
  93         headerView->setStretchLastSection(false);
  94         headerView->setResizeMode(QHeaderView::ResizeToContents);
  95         headerView->setResizeMode(0, QHeaderView::Stretch);
  96
  97         // hide columns if this is indicated by the settings
  98         const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
  99         Q_ASSERT(settings != 0);
 100         if (!settings->showDate()) {
 101             hideColumn(KDirModel::ModifiedTime);
 102         }
 103
 104         if (!settings->showPermissions()) {
 105             hideColumn(KDirModel::Permissions);
 106         }
 107
 108         if (!settings->showOwner()) {
 109             hideColumn(KDirModel::Owner);
 110         }
 111
 112         if (!settings->showGroup()) {
 113             hideColumn(KDirModel::Group);
 114         }
 115     }
 116
 117     return QTreeView::event(event);
 118 }
 119
 120 QStyleOptionViewItem DolphinDetailsView::viewOptions() const
 121 {
 122     return m_viewOptions;
 123 }
 124
 125 void DolphinDetailsView::contextMenuEvent(QContextMenuEvent* event)
 126 {
 127     QTreeView::contextMenuEvent(event);
 128     m_controller->triggerContextMenuRequest(event->pos());
 129 }
 130
 131 void DolphinDetailsView::mouseReleaseEvent(QMouseEvent* event)
 132 {
 133     QTreeView::mouseReleaseEvent(event);
 134     m_controller->triggerActivation();
 135 }
 136
 137 void DolphinDetailsView::dragEnterEvent(QDragEnterEvent* event)
 138 {
 139     if (event->mimeData()->hasUrls()) {
 140         event->acceptProposedAction();
 141     }
 142 }
 143
 144 void DolphinDetailsView::dropEvent(QDropEvent* event)
 145 {
 146     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 147     if (!urls.isEmpty()) {
 148         event->acceptProposedAction();
 149         m_controller->indicateDroppedUrls(urls,
 150                                           indexAt(event->pos()),
 151                                           event->source());
 152     }
 153     QTreeView::dropEvent(event);
 154 }
 155
 156 void DolphinDetailsView::setSortIndicatorSection(DolphinView::Sorting sorting)
 157 {
 158     QHeaderView* headerView = header();
 159     headerView->setSortIndicator(sorting, headerView->sortIndicatorOrder());
 160 }
 161
 162 void DolphinDetailsView::setSortIndicatorOrder(Qt::SortOrder sortOrder)
 163 {
 164     QHeaderView* headerView = header();
 165     headerView->setSortIndicator(headerView->sortIndicatorSection(), sortOrder);
 166 }
 167
 168 void DolphinDetailsView::synchronizeSortingState(int column)
 169 {
 170     // The sorting has already been changed in QTreeView if this slot is
 171     // invoked, but Dolphin is not informed about this.
 172     DolphinView::Sorting sorting = DolphinSortFilterProxyModel::sortingForColumn(column);
 173     const Qt::SortOrder sortOrder = header()->sortIndicatorOrder();
 174     m_controller->indicateSortingChange(sorting);
 175     m_controller->indicateSortOrderChange(sortOrder);
 176 }
 177
 178 void DolphinDetailsView::zoomIn()
 179 {
 180     if (isZoomInPossible()) {
 181         DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 182         // TODO: get rid of K3Icon sizes
 183         switch (settings->iconSize()) {
 184             case K3Icon::SizeSmall:  settings->setIconSize(K3Icon::SizeMedium); break;
 185             case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeLarge); break;
 186             default: Q_ASSERT(false); break;
 187         }
 188         updateDecorationSize();
 189     }
 190 }
 191
 192 void DolphinDetailsView::zoomOut()
 193 {
 194     if (isZoomOutPossible()) {
 195         DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 196         // TODO: get rid of K3Icon sizes
 197         switch (settings->iconSize()) {
 198             case K3Icon::SizeLarge:  settings->setIconSize(K3Icon::SizeMedium); break;
 199             case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeSmall); break;
 200             default: Q_ASSERT(false); break;
 201         }
 202         updateDecorationSize();
 203     }
 204 }
 205
 206 bool DolphinDetailsView::isZoomInPossible() const
 207 {
 208     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 209     return settings->iconSize() < K3Icon::SizeLarge;
 210 }
 211
 212 bool DolphinDetailsView::isZoomOutPossible() const
 213 {
 214     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 215     return settings->iconSize() > K3Icon::SizeSmall;
 216 }
 217
 218 void DolphinDetailsView::updateDecorationSize()
 219 {
 220     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 221     const int iconSize = settings->iconSize();
 222     m_viewOptions.decorationSize = QSize(iconSize, iconSize);
 223
 224     m_controller->setZoomInPossible(isZoomInPossible());
 225     m_controller->setZoomOutPossible(isZoomOutPossible());
 226
 227     doItemsLayout();
 228 }
 229
 230 #include "dolphindetailsview.moc"