X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/c8a4f1fd8d3c9b50e51b7234123b3fbe0b979552..d9f5e191a6bd32a4dc15b3a3eb34795cda7697dd:/src/dolphindetailsview.cpp

diff --git a/src/dolphindetailsview.cpp b/src/dolphindetailsview.cpp
index 88537471b..e55c2582d 100644
--- a/src/dolphindetailsview.cpp
+++ b/src/dolphindetailsview.cpp
@@ -20,6 +20,7 @@
 
 #include "dolphindetailsview.h"
 
+#include "dolphinmodel.h"
 #include "dolphincontroller.h"
 #include "dolphinsettings.h"
 #include "dolphinsortfilterproxymodel.h"
@@ -28,13 +29,24 @@
 #include "dolphin_detailsmodesettings.h"
 
 #include <kdirmodel.h>
-#include <kfileitemdelegate.h>
+#include <klocale.h>
+#include <kmenu.h>
 
+#include <QAbstractProxyModel>
+#include <QAction>
+#include <QApplication>
 #include <QHeaderView>
+#include <QRubberBand>
+#include <QPainter>
+#include <QScrollBar>
 
 DolphinDetailsView::DolphinDetailsView(QWidget* parent, DolphinController* controller) :
-        QTreeView(parent),
-        m_controller(controller)
+    QTreeView(parent),
+    m_controller(controller),
+    m_dragging(false),
+    m_showElasticBand(false),
+    m_elasticBandOrigin(),
+    m_elasticBandDestination()
 {
     Q_ASSERT(controller != 0);
 
@@ -45,30 +57,48 @@ DolphinDetailsView::DolphinDetailsView(QWidget* parent, DolphinController* contr
     setSelectionBehavior(SelectItems);
     setDragDropMode(QAbstractItemView::DragDrop);
     setDropIndicatorShown(false);
+    setAlternatingRowColors(true);
 
+    setMouseTracking(true);
     viewport()->setAttribute(Qt::WA_Hover);
 
     const ViewProperties props(controller->url());
     setSortIndicatorSection(props.sorting());
     setSortIndicatorOrder(props.sortOrder());
 
-    connect(header(), SIGNAL(sectionClicked(int)),
+    QHeaderView* headerView = header();
+    connect(headerView, SIGNAL(sectionClicked(int)),
             this, SLOT(synchronizeSortingState(int)));
+    headerView->setContextMenuPolicy(Qt::CustomContextMenu);
+    connect(headerView, SIGNAL(customContextMenuRequested(const QPoint&)),
+            this, SLOT(configureColumns(const QPoint&)));
 
     connect(parent, SIGNAL(sortingChanged(DolphinView::Sorting)),
             this, SLOT(setSortIndicatorSection(DolphinView::Sorting)));
     connect(parent, SIGNAL(sortOrderChanged(Qt::SortOrder)),
             this, SLOT(setSortIndicatorOrder(Qt::SortOrder)));
 
-    connect(this, SIGNAL(clicked(const QModelIndex&)),
-            controller, SLOT(triggerItem(const QModelIndex&)));
-    connect(this, SIGNAL(activated(const QModelIndex&)),
-            controller, SLOT(triggerItem(const QModelIndex&)));
-
+    // TODO: Connecting to the signal 'activated()' is not possible, as kstyle
+    // does not forward the single vs. doubleclick to it yet (KDE 4.1?). Hence it is
+    // necessary connecting the signal 'singleClick()' or 'doubleClick' and to handle the
+    // RETURN-key in keyPressEvent().
+    if (KGlobalSettings::singleClick()) {
+        connect(this, SIGNAL(clicked(const QModelIndex&)),
+                this, SLOT(triggerItem(const QModelIndex&)));
+    } else {
+        connect(this, SIGNAL(doubleClicked(const QModelIndex&)),
+                this, SLOT(triggerItem(const QModelIndex&)));
+    }
+    connect(this, SIGNAL(entered(const QModelIndex&)),
+            this, SLOT(slotEntered(const QModelIndex&)));
+    connect(this, SIGNAL(viewportEntered()),
+            controller, SLOT(emitViewportEntered()));
     connect(controller, SIGNAL(zoomIn()),
             this, SLOT(zoomIn()));
     connect(controller, SIGNAL(zoomOut()),
             this, SLOT(zoomOut()));
+    connect(controller->dolphinView(), SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
+            this, SLOT(updateColumnVisibility()));
 
     // apply the details mode settings to the widget
     const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
@@ -80,12 +110,25 @@ DolphinDetailsView::DolphinDetailsView(QWidget* parent, DolphinController* contr
     font.setItalic(settings->italicFont());
     font.setBold(settings->boldFont());
     m_viewOptions.font = font;
+    m_viewOptions.showDecorationSelected = true;
+
+// TODO: Remove this check when 4.3.2 is released and KDE requires it... this
+//       check avoids a division by zero happening on versions before 4.3.1.
+//       Right now KDE in theory can be shipped with Qt 4.3.0 and above.
+//       ereslibre
+#if (QT_VERSION >= QT_VERSION_CHECK(4, 3, 2) || defined(QT_KDE_QT_COPY))
+    setVerticalScrollMode(QTreeView::ScrollPerPixel);
+    setHorizontalScrollMode(QTreeView::ScrollPerPixel);
+#endif
 
     updateDecorationSize();
+
+    setFocus();
 }
 
 DolphinDetailsView::~DolphinDetailsView()
-{}
+{
+}
 
 bool DolphinDetailsView::event(QEvent* event)
 {
@@ -97,26 +140,25 @@ bool DolphinDetailsView::event(QEvent* event)
         headerView->setStretchLastSection(false);
         headerView->setResizeMode(QHeaderView::ResizeToContents);
         headerView->setResizeMode(0, QHeaderView::Stretch);
+        headerView->setMovable(false);
 
-        // hide columns if this is indicated by the settings
-        const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
-        Q_ASSERT(settings != 0);
-        if (!settings->showDate()) {
-            hideColumn(KDirModel::ModifiedTime);
-        }
-
-        if (!settings->showPermissions()) {
-            hideColumn(KDirModel::Permissions);
-        }
+        updateColumnVisibility();
 
-        if (!settings->showOwner()) {
-            hideColumn(KDirModel::Owner);
-        }
-
-        if (!settings->showGroup()) {
-            hideColumn(KDirModel::Group);
+        hideColumn(DolphinModel::Rating);
+        hideColumn(DolphinModel::Tags);
+    }
+// TODO: Remove this check when 4.3.2 is released and KDE requires it... this
+//       check avoids a division by zero happening on versions before 4.3.1.
+//       Right now KDE in theory can be shipped with Qt 4.3.0 and above.
+//       ereslibre
+#if (QT_VERSION >= QT_VERSION_CHECK(4, 3, 2) || defined(QT_KDE_QT_COPY))
+    else if (event->type() == QEvent::UpdateRequest) {
+        // a wheel movement will scroll 4 items
+        if (model()->rowCount() > 0) {
+            verticalScrollBar()->setSingleStep((sizeHintForRow(0) / 3) * 4);
         }
     }
+#endif
 
     return QTreeView::event(event);
 }
@@ -132,10 +174,46 @@ void DolphinDetailsView::contextMenuEvent(QContextMenuEvent* event)
     m_controller->triggerContextMenuRequest(event->pos());
 }
 
+void DolphinDetailsView::mousePressEvent(QMouseEvent* event)
+{
+    m_controller->requestActivation();
+
+    QTreeView::mousePressEvent(event);
+
+    const QModelIndex index = indexAt(event->pos());
+    if (!index.isValid() || (index.column() != DolphinModel::Name)) {
+        const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
+        if (!(modifier & Qt::ShiftModifier) && !(modifier & Qt::ControlModifier)) {
+            clearSelection();
+        }
+    }
+
+    if (event->button() == Qt::LeftButton) {
+        m_showElasticBand = true;
+
+        const QPoint pos(contentsPos());
+        m_elasticBandOrigin = event->pos();
+        m_elasticBandOrigin.setX(m_elasticBandOrigin.x() + pos.x());
+        m_elasticBandOrigin.setY(m_elasticBandOrigin.y() + pos.y());
+        m_elasticBandDestination = event->pos();
+    }
+}
+
+void DolphinDetailsView::mouseMoveEvent(QMouseEvent* event)
+{
+    QTreeView::mouseMoveEvent(event);
+    if (m_showElasticBand) {
+        updateElasticBand();
+    }
+}
+
 void DolphinDetailsView::mouseReleaseEvent(QMouseEvent* event)
 {
     QTreeView::mouseReleaseEvent(event);
-    m_controller->triggerActivation();
+    if (m_showElasticBand) {
+        updateElasticBand();
+        m_showElasticBand = false;
+    }
 }
 
 void DolphinDetailsView::dragEnterEvent(QDragEnterEvent* event)
@@ -143,6 +221,41 @@ void DolphinDetailsView::dragEnterEvent(QDragEnterEvent* event)
     if (event->mimeData()->hasUrls()) {
         event->acceptProposedAction();
     }
+
+    if (m_showElasticBand) {
+        updateElasticBand();
+        m_showElasticBand = false;
+    }
+    m_dragging = true;
+}
+
+void DolphinDetailsView::dragLeaveEvent(QDragLeaveEvent* event)
+{
+    QTreeView::dragLeaveEvent(event);
+
+    // TODO: remove this code when the issue #160611 is solved in Qt 4.4
+    m_dragging = false;
+    setDirtyRegion(m_dropRect);
+}
+
+void DolphinDetailsView::dragMoveEvent(QDragMoveEvent* event)
+{
+    QTreeView::dragMoveEvent(event);
+
+    // TODO: remove this code when the issue #160611 is solved in Qt 4.4
+    setDirtyRegion(m_dropRect);
+    const QModelIndex index = indexAt(event->pos());
+    if (!index.isValid() || (index.column() != DolphinModel::Name)) {
+        m_dragging = false;
+    } else {
+        m_dragging = true;
+        if (itemForIndex(index).isDir()) {
+            m_dropRect = visualRect(index);
+        } else {
+            m_dropRect.setSize(QSize()); // set as invalid
+        }
+        setDirtyRegion(m_dropRect);
+    }
 }
 
 void DolphinDetailsView::dropEvent(QDropEvent* event)
@@ -150,11 +263,90 @@ void DolphinDetailsView::dropEvent(QDropEvent* event)
     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
     if (!urls.isEmpty()) {
         event->acceptProposedAction();
+        const QModelIndex index = indexAt(event->pos());
+        KFileItem item;
+        if (index.isValid() && (index.column() == DolphinModel::Name)) {
+            item = itemForIndex(index);
+        }
         m_controller->indicateDroppedUrls(urls,
-                                          indexAt(event->pos()),
-                                          event->source());
+                                          m_controller->url(),
+                                          item);
     }
     QTreeView::dropEvent(event);
+    m_dragging = false;
+}
+
+void DolphinDetailsView::paintEvent(QPaintEvent* event)
+{
+    QTreeView::paintEvent(event);
+    if (m_showElasticBand) {
+        // The following code has been taken from QListView
+        // and adapted to DolphinDetailsView.
+        // (C) 1992-2007 Trolltech ASA
+        QStyleOptionRubberBand opt;
+        opt.initFrom(this);
+        opt.shape = QRubberBand::Rectangle;
+        opt.opaque = false;
+        opt.rect = elasticBandRect();
+
+        QPainter painter(viewport());
+        painter.save();
+        style()->drawControl(QStyle::CE_RubberBand, &opt, &painter);
+        painter.restore();
+    }
+
+    // TODO: remove this code when the issue #160611 is solved in Qt 4.4
+    if (m_dragging) {
+        const QBrush& brush = m_viewOptions.palette.brush(QPalette::Normal, QPalette::Highlight);
+        DolphinController::drawHoverIndication(viewport(), m_dropRect, brush);
+    }
+}
+
+void DolphinDetailsView::keyPressEvent(QKeyEvent* event)
+{
+    QTreeView::keyPressEvent(event);
+
+    const QItemSelectionModel* selModel = selectionModel();
+    const QModelIndex currentIndex = selModel->currentIndex();
+    const bool trigger = currentIndex.isValid()
+                         && (event->key() == Qt::Key_Return)
+                         && (selModel->selectedIndexes().count() <= 1);
+    if (trigger) {
+        triggerItem(currentIndex);
+    }
+}
+
+void DolphinDetailsView::resizeEvent(QResizeEvent* event)
+{
+    QTreeView::resizeEvent(event);
+
+    // assure that the width of the name-column does not get too small
+    const int minWidth = 120;
+    QHeaderView* headerView = header();
+    bool useFixedWidth = (headerView->sectionSize(KDirModel::Name) <= minWidth)
+                         && (headerView->resizeMode(0) != QHeaderView::Fixed);
+    if (useFixedWidth) {
+        // the current width of the name-column is too small, hence
+        // use a fixed size
+        headerView->setResizeMode(QHeaderView::Fixed);
+        headerView->setResizeMode(0, QHeaderView::Fixed);
+        headerView->resizeSection(KDirModel::Name, minWidth);
+    } else if (headerView->resizeMode(0) != QHeaderView::Stretch) {
+        // check whether there is enough available viewport width
+        // to automatically resize the columns
+        const int availableWidth = viewport()->width();
+
+        int headerWidth = 0;
+        const int count = headerView->count();
+        for (int i = 0; i < count; ++i) {
+            headerWidth += headerView->sectionSize(i);
+        }
+
+        if (headerWidth < availableWidth) {
+            headerView->setResizeMode(QHeaderView::ResizeToContents);
+            headerView->setResizeMode(0, QHeaderView::Stretch);
+        }
+    }
 }
 
 void DolphinDetailsView::setSortIndicatorSection(DolphinView::Sorting sorting)
@@ -179,14 +371,41 @@ void DolphinDetailsView::synchronizeSortingState(int column)
     m_controller->indicateSortOrderChange(sortOrder);
 }
 
+void DolphinDetailsView::slotEntered(const QModelIndex& index)
+{
+    const QPoint pos = viewport()->mapFromGlobal(QCursor::pos());
+    const int nameColumnWidth = header()->sectionSize(DolphinModel::Name);
+    if (pos.x() < nameColumnWidth) {
+        m_controller->emitItemEntered(itemForIndex(index));
+    }
+    else {
+        m_controller->emitViewportEntered();
+    }
+}
+
+void DolphinDetailsView::updateElasticBand()
+{
+    Q_ASSERT(m_showElasticBand);
+    QRect dirtyRegion(elasticBandRect());
+    m_elasticBandDestination = viewport()->mapFromGlobal(QCursor::pos());
+    dirtyRegion = dirtyRegion.united(elasticBandRect());
+    setDirtyRegion(dirtyRegion);
+}
+
+QRect DolphinDetailsView::elasticBandRect() const
+{
+    const QPoint pos(contentsPos());
+    const QPoint topLeft(m_elasticBandOrigin.x() - pos.x(), m_elasticBandOrigin.y() - pos.y());
+    return QRect(topLeft, m_elasticBandDestination).normalized();
+}
+
 void DolphinDetailsView::zoomIn()
 {
     if (isZoomInPossible()) {
         DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
-        // TODO: get rid of K3Icon sizes
         switch (settings->iconSize()) {
-        case K3Icon::SizeSmall:  settings->setIconSize(K3Icon::SizeMedium); break;
-        case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeLarge); break;
+        case KIconLoader::SizeSmall:  settings->setIconSize(KIconLoader::SizeMedium); break;
+        case KIconLoader::SizeMedium: settings->setIconSize(KIconLoader::SizeLarge); break;
         default: Q_ASSERT(false); break;
         }
         updateDecorationSize();
@@ -197,26 +416,103 @@ void DolphinDetailsView::zoomOut()
 {
     if (isZoomOutPossible()) {
         DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
-        // TODO: get rid of K3Icon sizes
         switch (settings->iconSize()) {
-        case K3Icon::SizeLarge:  settings->setIconSize(K3Icon::SizeMedium); break;
-        case K3Icon::SizeMedium: settings->setIconSize(K3Icon::SizeSmall); break;
+        case KIconLoader::SizeLarge:  settings->setIconSize(KIconLoader::SizeMedium); break;
+        case KIconLoader::SizeMedium: settings->setIconSize(KIconLoader::SizeSmall); break;
         default: Q_ASSERT(false); break;
         }
         updateDecorationSize();
     }
 }
 
+void DolphinDetailsView::triggerItem(const QModelIndex& index)
+{
+    const KFileItem item = itemForIndex(index);
+    if (index.isValid() && (index.column() == KDirModel::Name)) {
+        m_controller->triggerItem(item);
+    } else {
+        clearSelection();
+        m_controller->emitItemEntered(item);
+    }
+}
+
+void DolphinDetailsView::configureColumns(const QPoint& pos)
+{
+    KMenu popup(this);
+    popup.addTitle(i18nc("@title:menu", "Columns"));
+
+    QHeaderView* headerView = header();
+    for (int i = DolphinModel::Size; i <= DolphinModel::Type; ++i) {
+        const int logicalIndex = headerView->logicalIndex(i);
+        const QString text = model()->headerData(i, Qt::Horizontal).toString();
+        QAction* action = popup.addAction(text);
+        action->setCheckable(true);
+        action->setChecked(!headerView->isSectionHidden(logicalIndex));
+        action->setData(i);
+    }
+
+    QAction* activatedAction = popup.exec(header()->mapToGlobal(pos));
+    if (activatedAction != 0) {
+        const bool show = activatedAction->isChecked();
+        const int columnIndex = activatedAction->data().toInt();
+
+        KFileItemDelegate::InformationList list = m_controller->dolphinView()->additionalInfo();
+        KFileItemDelegate::Information info = KFileItemDelegate::NoInformation;
+        switch (columnIndex) {
+        case DolphinModel::Size:         info = KFileItemDelegate::Size; break;
+        case DolphinModel::ModifiedTime: info = KFileItemDelegate::ModificationTime; break;
+        case DolphinModel::Permissions:  info = KFileItemDelegate::Permissions; break;
+        case DolphinModel::Owner:        info = KFileItemDelegate::Owner; break;
+        case DolphinModel::Group:        info = KFileItemDelegate::OwnerAndGroup; break;
+        case DolphinModel::Type:         info = KFileItemDelegate::FriendlyMimeType; break;
+        default: break;
+        }
+
+        if (show) {
+            Q_ASSERT(!list.contains(info));
+            list.append(info);
+        } else {
+            Q_ASSERT(list.contains(info));
+            const int index = list.indexOf(info);
+            list.removeAt(index);
+        }
+
+        m_controller->indicateAdditionalInfoChange(list);
+        setColumnHidden(columnIndex, !show);
+    }
+}
+
+void DolphinDetailsView::updateColumnVisibility()
+{
+    KFileItemDelegate::InformationList list = m_controller->dolphinView()->additionalInfo();
+    if (list.isEmpty() || list.contains(KFileItemDelegate::NoInformation)) {
+        // Using the details view without any additional information (-> additional column)
+        // makes no sense and leads to a usability problem as no viewport area is available
+        // anymore. Hence as fallback provide at least a size and date column.
+        list.clear();
+        list.append(KFileItemDelegate::Size);
+        list.append(KFileItemDelegate::ModificationTime);
+        m_controller->indicateAdditionalInfoChange(list);
+    }
+
+    setColumnHidden(DolphinModel::Size,         !list.contains(KFileItemDelegate::Size));
+    setColumnHidden(DolphinModel::ModifiedTime, !list.contains(KFileItemDelegate::ModificationTime));
+    setColumnHidden(DolphinModel::Permissions,  !list.contains(KFileItemDelegate::Permissions));
+    setColumnHidden(DolphinModel::Owner,        !list.contains(KFileItemDelegate::Owner));
+    setColumnHidden(DolphinModel::Group,        !list.contains(KFileItemDelegate::OwnerAndGroup));
+    setColumnHidden(DolphinModel::Type,         !list.contains(KFileItemDelegate::FriendlyMimeType));
+}
+
 bool DolphinDetailsView::isZoomInPossible() const
 {
     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
-    return settings->iconSize() < K3Icon::SizeLarge;
+    return settings->iconSize() < KIconLoader::SizeLarge;
 }
 
 bool DolphinDetailsView::isZoomOutPossible() const
 {
     DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
-    return settings->iconSize() > K3Icon::SizeSmall;
+    return settings->iconSize() > KIconLoader::SizeSmall;
 }
 
 void DolphinDetailsView::updateDecorationSize()
@@ -231,4 +527,30 @@ void DolphinDetailsView::updateDecorationSize()
     doItemsLayout();
 }
 
+QPoint DolphinDetailsView::contentsPos() const
+{
+    // implementation note: the horizonal position is ignored currently, as no
+    // horizontal scrolling is done anyway during a selection
+    const QScrollBar* scrollbar = verticalScrollBar();
+    Q_ASSERT(scrollbar != 0);
+
+    const int maxHeight = maximumViewportSize().height();
+    const int height = scrollbar->maximum() - scrollbar->minimum() + 1;
+    const int visibleHeight = model()->rowCount() + 1 - height;
+    if (visibleHeight <= 0) {
+        return QPoint(0, 0);
+    }
+
+    const int y = scrollbar->sliderPosition() * maxHeight / visibleHeight;
+    return QPoint(0, y);
+}
+
+KFileItem DolphinDetailsView::itemForIndex(const QModelIndex& index) const
+{
+    QAbstractProxyModel* proxyModel = static_cast<QAbstractProxyModel*>(model());
+    KDirModel* dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
+    const QModelIndex dirIndex = proxyModel->mapToSource(index);
+    return dirModel->itemForIndex(dirIndex);
+}
+
 #include "dolphindetailsview.moc"