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
  47     viewport()->setAttribute(Qt::WA_Hover);
  48
  49     const ViewProperties props(controller->url());
  50     setSortIndicatorSection(props.sorting());
  51     setSortIndicatorOrder(props.sortOrder());
  52
  53     connect(header(), SIGNAL(sectionClicked(int)),
  54             this, SLOT(synchronizeSortingState(int)));
  55
  56     connect(parent, SIGNAL(sortingChanged(DolphinView::Sorting)),
  57             this, SLOT(setSortIndicatorSection(DolphinView::Sorting)));
  58     connect(parent, SIGNAL(sortOrderChanged(Qt::SortOrder)),
  59             this, SLOT(setSortIndicatorOrder(Qt::SortOrder)));
  60
  61     connect(this, SIGNAL(clicked(const QModelIndex&)),
  62             controller, SLOT(triggerItem(const QModelIndex&)));
  63     connect(this, SIGNAL(activated(const QModelIndex&)),
  64             controller, SLOT(triggerItem(const QModelIndex&)));
  65
  66     connect(controller, SIGNAL(zoomIn()),
  67             this, SLOT(zoomIn()));
  68     connect(controller, SIGNAL(zoomOut()),
  69             this, SLOT(zoomOut()));
  70
  71     // apply the details mode settings to the widget
  72     const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
  73     Q_ASSERT(settings != 0);
  74
  75     m_viewOptions = QTreeView::viewOptions();
  76     m_viewOptions.font = QFont(settings->fontFamily(), settings->fontSize());
  77     updateDecorationSize();
  78
  79     KFileItemDelegate* delegate = new KFileItemDelegate(parent);
  80     setItemDelegate(delegate);
  81 }
  82
  83 DolphinDetailsView::~DolphinDetailsView()
  84 {
  85 }
  86
  87 bool DolphinDetailsView::event(QEvent* event)
  88 {
  89     if (event->type() == QEvent::Polish) {
  90         // Assure that by respecting the available width that:
  91         // - the 'Name' column is stretched as large as possible
  92         // - the remaining columns are as small as possible
  93         QHeaderView* headerView = header();
  94         headerView->setStretchLastSection(false);
  95         headerView->setResizeMode(QHeaderView::ResizeToContents);
  96         headerView->setResizeMode(0, QHeaderView::Stretch);
  97
  98         // hide columns if this is indicated by the settings
  99         const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 100         Q_ASSERT(settings != 0);
 101         if (!settings->showDate()) {
 102             hideColumn(KDirModel::ModifiedTime);
 103         }
 104
 105         if (!settings->showPermissions()) {
 106             hideColumn(KDirModel::Permissions);
 107         }
 108
 109         if (!settings->showOwner()) {
 110             hideColumn(KDirModel::Owner);
 111         }
 112
 113         if (!settings->showGroup()) {
 114             hideColumn(KDirModel::Group);
 115         }
 116     }
 117
 118     return QTreeView::event(event);
 119 }
 120
 121 QStyleOptionViewItem DolphinDetailsView::viewOptions() const
 122 {
 123     return m_viewOptions;
 124 }
 125
 126 void DolphinDetailsView::contextMenuEvent(QContextMenuEvent* event)
 127 {
 128     QTreeView::contextMenuEvent(event);
 129     m_controller->triggerContextMenuRequest(event->pos());
 130 }
 131
 132 void DolphinDetailsView::mouseReleaseEvent(QMouseEvent* event)
 133 {
 134     QTreeView::mouseReleaseEvent(event);
 135     m_controller->triggerActivation();
 136 }
 137
 138 void DolphinDetailsView::dragEnterEvent(QDragEnterEvent* event)
 139 {
 140     if (event->mimeData()->hasUrls()) {
 141         event->acceptProposedAction();
 142     }
 143 }
 144
 145 void DolphinDetailsView::dropEvent(QDropEvent* event)
 146 {
 147     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 148     if (urls.isEmpty() || (event->source() == this)) {
 149         QTreeView::dropEvent(event);
 150     }
 151     else {
 152         event->acceptProposedAction();
 153         m_controller->indicateDroppedUrls(urls, event->pos());
 154     }
 155 }
 156
 157 void DolphinDetailsView::setSortIndicatorSection(DolphinView::Sorting sorting)
 158 {
 159     QHeaderView* headerView = header();
 160     headerView->setSortIndicator(sorting, headerView->sortIndicatorOrder());
 161 }
 162
 163 void DolphinDetailsView::setSortIndicatorOrder(Qt::SortOrder sortOrder)
 164 {
 165     QHeaderView* headerView = header();
 166     headerView->setSortIndicator(headerView->sortIndicatorSection(), sortOrder);
 167 }
 168
 169 void DolphinDetailsView::synchronizeSortingState(int column)
 170 {
 171     // The sorting has already been changed in QTreeView if this slot is
 172     // invoked, but Dolphin is not informed about this.
 173     DolphinView::Sorting sorting = DolphinSortFilterProxyModel::sortingForColumn(column);
 174     const Qt::SortOrder sortOrder = header()->sortIndicatorOrder();
 175     m_controller->indicateSortingChange(sorting);
 176     m_controller->indicateSortOrderChange(sortOrder);
 177 }
 178
 179 void DolphinDetailsView::zoomIn()
 180 {
 181     if (isZoomInPossible()) {
 182         DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 183         // TODO: get rid of K3Icon sizes
 184         switch (settings->iconSize()) {
 185             case K3Icon::SizeSmall:  settings->setIconSize(K3Icon::SizeMedium); break;
 186             case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeLarge); break;
 187             default: Q_ASSERT(false); break;
 188         }
 189         updateDecorationSize();
 190     }
 191 }
 192
 193 void DolphinDetailsView::zoomOut()
 194 {
 195     if (isZoomOutPossible()) {
 196         DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 197         // TODO: get rid of K3Icon sizes
 198         switch (settings->iconSize()) {
 199             case K3Icon::SizeLarge:  settings->setIconSize(K3Icon::SizeMedium); break;
 200             case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeSmall); break;
 201             default: Q_ASSERT(false); break;
 202         }
 203         updateDecorationSize();
 204     }
 205 }
 206
 207 bool DolphinDetailsView::isZoomInPossible() const
 208 {
 209     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 210     return settings->iconSize() < K3Icon::SizeLarge;
 211 }
 212
 213 bool DolphinDetailsView::isZoomOutPossible() const
 214 {
 215     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 216     return settings->iconSize() > K3Icon::SizeSmall;
 217 }
 218
 219 void DolphinDetailsView::updateDecorationSize()
 220 {
 221     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
 222     const int iconSize = settings->iconSize();
 223     m_viewOptions.decorationSize = QSize(iconSize, iconSize);
 224
 225     m_controller->setZoomInPossible(isZoomInPossible());
 226     m_controller->setZoomOutPossible(isZoomOutPossible());
 227
 228     doItemsLayout();
 229 }
 230
 231 #include "dolphindetailsview.moc"