]> cloud.milkyroute.net Git - dolphin.git/blobdiff - src/dolphindetailsview.cpp
check whether the current index is valid and whether no other items are selected
[dolphin.git] / src / dolphindetailsview.cpp
index 987b5a9841c575ed3113bfc076ece51cc11a82b6..d7c8c5ab138cbf63c99eb914a0f7c5994ee6873f 100644 (file)
  ***************************************************************************/
 
 #include "dolphindetailsview.h"
-#include "dolphinview.h"
 
-DolphinDetailsView::DolphinDetailsView(DolphinView* parent) :
-    QListView(parent)
+#include "dolphincontroller.h"
+#include "dolphinsettings.h"
+#include "dolphinsortfilterproxymodel.h"
+#include "viewproperties.h"
+
+#include "dolphin_detailsmodesettings.h"
+
+#include <kdirmodel.h>
+
+#include <QApplication>
+#include <QHeaderView>
+#include <QRubberBand>
+#include <QPainter>
+#include <QScrollBar>
+
+DolphinDetailsView::DolphinDetailsView(QWidget* parent, DolphinController* controller) :
+    QTreeView(parent),
+    m_controller(controller),
+    m_dragging(false),
+    m_showElasticBand(false),
+    m_elasticBandOrigin(),
+    m_elasticBandDestination()
 {
+    Q_ASSERT(controller != 0);
+
+    setAcceptDrops(true);
+    setRootIsDecorated(false);
+    setSortingEnabled(true);
+    setUniformRowHeights(true);
+    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)),
+            this, SLOT(synchronizeSortingState(int)));
+
+    connect(parent, SIGNAL(sortingChanged(DolphinView::Sorting)),
+            this, SLOT(setSortIndicatorSection(DolphinView::Sorting)));
+    connect(parent, SIGNAL(sortOrderChanged(Qt::SortOrder)),
+            this, SLOT(setSortIndicatorOrder(Qt::SortOrder)));
+
+    // 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(slotItemActivated(const QModelIndex&)));
+    } else {
+        connect(this, SIGNAL(doubleClicked(const QModelIndex&)),
+                this, SLOT(slotItemActivated(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()));
+
+    // apply the details mode settings to the widget
+    const DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
+    Q_ASSERT(settings != 0);
+
+    m_viewOptions = QTreeView::viewOptions();
+
+    QFont font(settings->fontFamily(), settings->fontSize());
+    font.setItalic(settings->italicFont());
+    font.setBold(settings->boldFont());
+    m_viewOptions.font = font;
+
+    updateDecorationSize();
 }
 
 DolphinDetailsView::~DolphinDetailsView()
 {
 }
+
+bool DolphinDetailsView::event(QEvent* event)
+{
+    if (event->type() == QEvent::Polish) {
+        // Assure that by respecting the available width that:
+        // - the 'Name' column is stretched as large as possible
+        // - the remaining columns are as small as possible
+        QHeaderView* headerView = header();
+        headerView->setStretchLastSection(false);
+        headerView->setResizeMode(QHeaderView::ResizeToContents);
+        headerView->setResizeMode(0, QHeaderView::Stretch);
+
+        // 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);
+        }
+
+        if (!settings->showOwner()) {
+            hideColumn(KDirModel::Owner);
+        }
+
+        if (!settings->showGroup()) {
+            hideColumn(KDirModel::Group);
+        }
+
+        if (!settings->showType()) {
+            hideColumn(KDirModel::Type);
+        }
+    }
+
+    return QTreeView::event(event);
+}
+
+QStyleOptionViewItem DolphinDetailsView::viewOptions() const
+{
+    return m_viewOptions;
+}
+
+void DolphinDetailsView::contextMenuEvent(QContextMenuEvent* event)
+{
+    QTreeView::contextMenuEvent(event);
+    m_controller->triggerContextMenuRequest(event->pos());
+}
+
+void DolphinDetailsView::mousePressEvent(QMouseEvent* event)
+{
+    m_controller->triggerActivation();
+
+    QTreeView::mousePressEvent(event);
+
+    const QModelIndex index = indexAt(event->pos());
+    if (!index.isValid() || (index.column() != KDirModel::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);
+    if (m_showElasticBand) {
+        updateElasticBand();
+        m_showElasticBand = false;
+    }
+}
+
+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() != KDirModel::Name)) {
+        m_dragging = false;
+    } else {
+        m_dragging = true;
+        m_dropRect = visualRect(index);
+        setDirtyRegion(m_dropRect);
+    }
+}
+
+void DolphinDetailsView::dropEvent(QDropEvent* event)
+{
+    const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
+    if (!urls.isEmpty()) {
+        event->acceptProposedAction();
+        m_controller->indicateDroppedUrls(urls,
+                                          indexAt(event->pos()),
+                                          event->source());
+    }
+    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 triggerItem = currentIndex.isValid()
+                             && (event->key() == Qt::Key_Return)
+                             && (selModel->selectedIndexes().count() <= 1);
+    if (triggerItem) {
+        m_controller->triggerItem(currentIndex);
+    }
+}
+
+void DolphinDetailsView::setSortIndicatorSection(DolphinView::Sorting sorting)
+{
+    QHeaderView* headerView = header();
+    headerView->setSortIndicator(sorting, headerView->sortIndicatorOrder());
+}
+
+void DolphinDetailsView::setSortIndicatorOrder(Qt::SortOrder sortOrder)
+{
+    QHeaderView* headerView = header();
+    headerView->setSortIndicator(headerView->sortIndicatorSection(), sortOrder);
+}
+
+void DolphinDetailsView::synchronizeSortingState(int column)
+{
+    // The sorting has already been changed in QTreeView if this slot is
+    // invoked, but Dolphin is not informed about this.
+    DolphinView::Sorting sorting = DolphinSortFilterProxyModel::sortingForColumn(column);
+    const Qt::SortOrder sortOrder = header()->sortIndicatorOrder();
+    m_controller->indicateSortingChange(sorting);
+    m_controller->indicateSortOrderChange(sortOrder);
+}
+
+void DolphinDetailsView::slotEntered(const QModelIndex& index)
+{
+    const QPoint pos = viewport()->mapFromGlobal(QCursor::pos());
+    const int nameColumnWidth = header()->sectionSize(KDirModel::Name);
+    if (pos.x() < nameColumnWidth) {
+        m_controller->emitItemEntered(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);
+}
+
+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;
+        default: Q_ASSERT(false); break;
+        }
+        updateDecorationSize();
+    }
+}
+
+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;
+        default: Q_ASSERT(false); break;
+        }
+        updateDecorationSize();
+    }
+}
+
+bool DolphinDetailsView::isZoomInPossible() const
+{
+    DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
+    return settings->iconSize() < K3Icon::SizeLarge;
+}
+
+bool DolphinDetailsView::isZoomOutPossible() const
+{
+    DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
+    return settings->iconSize() > K3Icon::SizeSmall;
+}
+
+void DolphinDetailsView::updateDecorationSize()
+{
+    DetailsModeSettings* settings = DolphinSettings::instance().detailsModeSettings();
+    const int iconSize = settings->iconSize();
+    m_viewOptions.decorationSize = QSize(iconSize, iconSize);
+
+    m_controller->setZoomInPossible(isZoomInPossible());
+    m_controller->setZoomOutPossible(isZoomOutPossible());
+
+    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);
+}
+
+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();
+}
+
+static bool isValidNameIndex(const QModelIndex& index)
+{
+    return index.isValid() && (index.column() == KDirModel::Name);
+}
+
+void DolphinDetailsView::slotItemActivated(const QModelIndex& index)
+{
+    if (!isValidNameIndex(index)) {
+        clearSelection();
+        m_controller->emitItemEntered(index);
+    } else {
+        m_controller->triggerItem(index);
+    }
+}
+
 #include "dolphindetailsview.moc"