+/***************************************************************************
+ * Copyright (C) 2007 by Peter Penz <peter.penz@gmx.at> *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
+ ***************************************************************************/
+
+#include "dolphincolumnwidget.h"
+
+#include "dolphinmodel.h"
+#include "dolphincolumnview.h"
+#include "dolphincontroller.h"
+#include "dolphindirlister.h"
+#include "dolphinmodel.h"
+#include "dolphinsortfilterproxymodel.h"
+#include "dolphinsettings.h"
+
+#include "dolphin_columnmodesettings.h"
+
+#include <kcolorutils.h>
+#include <kcolorscheme.h>
+#include <kdirlister.h>
+#include <kfileitem.h>
+#include <kio/previewjob.h>
+#include <kiconeffect.h>
+#include <konqmimedata.h>
+
+#include <QAbstractProxyModel>
+#include <QApplication>
+#include <QClipboard>
+#include <QPoint>
+#include <QScrollBar>
+#include <QTimer>
+#include <QTimeLine>
+
+DolphinColumnWidget::DolphinColumnWidget(QWidget* parent,
+ DolphinColumnView* columnView,
+ const KUrl& url) :
+ QListView(parent),
+ m_active(true),
+ m_showPreview(false),
+ m_view(columnView),
+ m_url(url),
+ m_childUrl(),
+ m_viewOptions(),
+ m_dirLister(0),
+ m_dolphinModel(0),
+ m_proxyModel(0),
+ m_dragging(false),
+ m_dropRect()
+{
+ setMouseTracking(true);
+ viewport()->setAttribute(Qt::WA_Hover);
+ setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
+ setSelectionBehavior(SelectItems);
+ setSelectionMode(QAbstractItemView::ExtendedSelection);
+ setDragDropMode(QAbstractItemView::DragDrop);
+ setDropIndicatorShown(false);
+ setFocusPolicy(Qt::NoFocus);
+
+// 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(QListView::ScrollPerPixel);
+ setHorizontalScrollMode(QListView::ScrollPerPixel);
+#endif
+
+ // apply the column mode settings to the widget
+ const ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
+ Q_ASSERT(settings != 0);
+
+ m_viewOptions = QListView::viewOptions();
+
+ QFont font(settings->fontFamily(), settings->fontSize());
+ font.setItalic(settings->italicFont());
+ font.setBold(settings->boldFont());
+ m_viewOptions.font = font;
+
+ const int iconSize = settings->iconSize();
+ m_viewOptions.decorationSize = QSize(iconSize, iconSize);
+
+ m_viewOptions.showDecorationSelected = true;
+
+ KFileItemDelegate* delegate = new KFileItemDelegate(this);
+ setItemDelegate(delegate);
+
+ activate();
+
+ connect(this, SIGNAL(entered(const QModelIndex&)),
+ m_view->m_controller, SLOT(emitItemEntered(const QModelIndex&)));
+ connect(this, SIGNAL(viewportEntered()),
+ m_view->m_controller, SLOT(emitViewportEntered()));
+ connect(this, SIGNAL(viewportEntered()),
+ m_view->m_controller, SLOT(emitViewportEntered()));
+
+ connect(this, SIGNAL(entered(const QModelIndex&)),
+ this, SLOT(slotEntered(const QModelIndex&)));
+
+ //m_dirLister = new DolphinDirLister(); TODO
+ m_dirLister = new KDirLister();
+ m_dirLister->setAutoUpdate(true);
+ m_dirLister->setMainWindow(this);
+ m_dirLister->setDelayedMimeTypes(true);
+ m_dirLister->setShowingDotFiles(m_view->m_controller->showHiddenFiles());
+ connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
+ this, SLOT(generatePreviews(const KFileItemList&)));
+
+ m_dolphinModel = new DolphinModel(this);
+ m_dolphinModel->setDirLister(m_dirLister);
+ m_dolphinModel->setDropsAllowed(DolphinModel::DropOnDirectory);
+
+ m_proxyModel = new DolphinSortFilterProxyModel(this);
+ m_proxyModel->setSourceModel(m_dolphinModel);
+
+ setModel(m_proxyModel);
+
+ m_dirLister->openUrl(url, KDirLister::NoFlags);
+}
+
+DolphinColumnWidget::~DolphinColumnWidget()
+{
+ delete m_dirLister;
+ m_dirLister = 0;
+}
+
+void DolphinColumnWidget::setDecorationSize(const QSize& size)
+{
+ m_viewOptions.decorationSize = size;
+ doItemsLayout();
+}
+
+void DolphinColumnWidget::setActive(bool active)
+{
+ if (m_active == active) {
+ return;
+ }
+
+ m_active = active;
+
+ if (active) {
+ activate();
+ } else {
+ deactivate();
+ }
+}
+
+void DolphinColumnWidget::reload()
+{
+ m_dirLister->stop();
+ m_dirLister->openUrl(m_url, KDirLister::Reload);
+}
+
+void DolphinColumnWidget::setShowHiddenFiles(bool show)
+{
+ if (show != m_dirLister->showingDotFiles()) {
+ m_dirLister->setShowingDotFiles(show);
+ m_dirLister->stop();
+ m_dirLister->openUrl(m_url, KDirLister::Reload);
+ }
+}
+
+void DolphinColumnWidget::setShowPreview(bool show)
+{
+ if (show != m_showPreview) {
+ m_dirLister->stop();
+ m_dirLister->openUrl(m_url, KDirLister::Reload);
+ }
+}
+
+void DolphinColumnWidget::dragEnterEvent(QDragEnterEvent* event)
+{
+ if (event->mimeData()->hasUrls()) {
+ event->acceptProposedAction();
+ }
+
+ m_dragging = true;
+}
+
+void DolphinColumnWidget::dragLeaveEvent(QDragLeaveEvent* event)
+{
+ QListView::dragLeaveEvent(event);
+
+ // TODO: remove this code when the issue #160611 is solved in Qt 4.4
+ m_dragging = false;
+ setDirtyRegion(m_dropRect);
+}
+
+void DolphinColumnWidget::dragMoveEvent(QDragMoveEvent* event)
+{
+ QListView::dragMoveEvent(event);
+
+ // TODO: remove this code when the issue #160611 is solved in Qt 4.4
+ const QModelIndex index = indexAt(event->pos());
+ setDirtyRegion(m_dropRect);
+ m_dropRect = visualRect(index);
+ setDirtyRegion(m_dropRect);
+}
+
+void DolphinColumnWidget::dropEvent(QDropEvent* event)
+{
+ const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
+ if (!urls.isEmpty()) {
+ event->acceptProposedAction();
+ m_view->m_controller->indicateDroppedUrls(urls,
+ url(),
+ indexAt(event->pos()),
+ event->source());
+ }
+ QListView::dropEvent(event);
+ m_dragging = false;
+}
+
+void DolphinColumnWidget::paintEvent(QPaintEvent* event)
+{
+ if (!m_childUrl.isEmpty()) {
+ // indicate the shown URL of the next column by highlighting the shown folder item
+ const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_childUrl);
+ const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
+ if (proxyIndex.isValid() && !selectionModel()->isSelected(proxyIndex)) {
+ const QRect itemRect = visualRect(proxyIndex);
+ QPainter painter(viewport());
+ painter.save();
+
+ QColor color = KColorScheme(QPalette::Active, KColorScheme::View).foreground().color();
+ color.setAlpha(32);
+ painter.setPen(Qt::NoPen);
+ painter.setBrush(color);
+ painter.drawRect(itemRect);
+
+ painter.restore();
+ }
+ }
+
+ QListView::paintEvent(event);
+
+ // 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 DolphinColumnWidget::mousePressEvent(QMouseEvent* event)
+{
+ if (!m_active) {
+ m_view->requestActivation(this);
+ }
+
+ QListView::mousePressEvent(event);
+}
+
+void DolphinColumnWidget::keyPressEvent(QKeyEvent* event)
+{
+ QListView::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 DolphinColumnWidget::contextMenuEvent(QContextMenuEvent* event)
+{
+ if (!m_active) {
+ m_view->requestActivation(this);
+ }
+
+ QListView::contextMenuEvent(event);
+
+ const QModelIndex index = indexAt(event->pos());
+ if (index.isValid() || m_active) {
+ // Only open a context menu above an item or if the mouse is above
+ // the active column.
+ const QPoint pos = m_view->viewport()->mapFromGlobal(event->globalPos());
+ m_view->m_controller->triggerContextMenuRequest(pos);
+ }
+}
+
+void DolphinColumnWidget::selectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
+{
+ QListView::selectionChanged(selected, deselected);
+
+ QItemSelectionModel* selModel = m_view->selectionModel();
+ selModel->select(selected, QItemSelectionModel::Select);
+ selModel->select(deselected, QItemSelectionModel::Deselect);
+}
+void DolphinColumnWidget::triggerItem(const QModelIndex& index)
+{
+ const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
+ if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
+ // items are selected by the user, hence don't trigger the
+ // item specified by 'index'
+ return;
+ }
+
+ // TODO: check ZIP support (see DolphinViewContainer::triggerItem)
+ KFileItem item = m_dolphinModel->itemForIndex(m_proxyModel->mapToSource(index));
+ if (item.isDir()) {
+ bool isLocal;
+ const KUrl url = item.mostLocalUrl(isLocal);
+ m_view->showColumn(url);
+ m_view->m_controller->setUrl(url);
+ } else if (item.isFile()) {
+ item.run();
+ }
+}
+
+void DolphinColumnWidget::generatePreviews(const KFileItemList& items)
+{
+ // TODO: same implementation as in DolphinView; create helper class
+ // for generatePreviews(), showPreview() and isCutItem()
+
+ if (m_view->m_controller->showPreview()) {
+ KIO::PreviewJob* job = KIO::filePreview(items, 128);
+ connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
+ this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
+ }
+}
+
+void DolphinColumnWidget::showPreview(const KFileItem& item, const QPixmap& pixmap)
+{
+ // TODO: same implementation as in DolphinView; create helper class
+ // for generatePreviews(), showPreview() and isCutItem()
+
+ Q_ASSERT(!item.isNull());
+ if (item.url().directory() != m_dirLister->url().path()) {
+ // the preview job is still working on items of an older URL, hence
+ // the item is not part of the directory model anymore
+ return;
+ }
+
+ const QModelIndex idx = m_dolphinModel->indexForItem(item);
+ if (idx.isValid() && (idx.column() == 0)) {
+ const QMimeData* mimeData = QApplication::clipboard()->mimeData();
+ if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
+ KIconEffect iconEffect;
+ const QPixmap cutPixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
+ m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
+ } else {
+ m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
+ }
+ }
+}
+
+void DolphinColumnWidget::slotEntered(const QModelIndex& index)
+{
+ const QModelIndex dirIndex = m_proxyModel->mapToSource(index);
+ const KFileItem item = m_dolphinModel->itemForIndex(dirIndex);
+ m_view->m_controller->emitItemEntered(item);
+}
+
+void DolphinColumnWidget::activate()
+{
+ if (m_view->hasFocus()) {
+ setFocus(Qt::OtherFocusReason);
+ }
+ m_view->setFocusProxy(this);
+
+ // 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'.
+ 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&)));
+ }
+
+ const QColor bgColor = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
+ QPalette palette = viewport()->palette();
+ palette.setColor(viewport()->backgroundRole(), bgColor);
+ viewport()->setPalette(palette);
+
+ if (!m_childUrl.isEmpty()) {
+ // assure that the current index is set on the index that represents
+ // the child URL
+ const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_childUrl);
+ const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
+ selectionModel()->setCurrentIndex(proxyIndex, QItemSelectionModel::Current);
+ }
+
+ update();
+}
+
+void DolphinColumnWidget::deactivate()
+{
+ // 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'.
+ if (KGlobalSettings::singleClick()) {
+ disconnect(this, SIGNAL(clicked(const QModelIndex&)),
+ this, SLOT(triggerItem(const QModelIndex&)));
+ } else {
+ disconnect(this, SIGNAL(doubleClicked(const QModelIndex&)),
+ this, SLOT(triggerItem(const QModelIndex&)));
+ }
+
+ const QPalette palette = m_view->viewport()->palette();
+ viewport()->setPalette(palette);
+
+ selectionModel()->clear();
+ update();
+}
+
+bool DolphinColumnWidget::isCutItem(const KFileItem& item) const
+{
+ // TODO: same implementation as in DolphinView; create helper class
+ // for generatePreviews(), showPreview() and isCutItem()
+
+ const QMimeData* mimeData = QApplication::clipboard()->mimeData();
+ const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
+
+ const KUrl& itemUrl = item.url();
+ KUrl::List::const_iterator it = cutUrls.begin();
+ const KUrl::List::const_iterator end = cutUrls.end();
+ while (it != end) {
+ if (*it == itemUrl) {
+ return true;
+ }
+ ++it;
+ }
+
+ return false;
+}
+
+#include "dolphincolumnwidget.moc"
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