/***************************************************************************
* Copyright (C) 2007 by Peter Penz <peter.penz@gmx.at> *
+ * Copyright (C) 2007 by David Faure <faure@kde.org> *
* *
* 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 *
#include "draganddrophelper.h"
#include "dolphiniconsview.h"
+#include "dolphinviewcontroller.h"
#include <kdirmodel.h>
+#include <kfileitem.h>
#include <kicon.h>
+#include <klocale.h>
+#include <konq_operations.h>
#include <QAbstractItemView>
#include <QAbstractProxyModel>
-#include <QBrush>
+#include <QtDBus>
#include <QDrag>
#include <QPainter>
-#include <QRect>
-#include <QWidget>
-void DragAndDropHelper::startDrag(QAbstractItemView* itemView, Qt::DropActions supportedActions)
+class DragAndDropHelperSingleton
{
- QModelIndexList indexes = itemView->selectionModel()->selectedIndexes();
- if (indexes.count() > 0) {
+public:
+ DragAndDropHelper instance;
+};
+K_GLOBAL_STATIC(DragAndDropHelperSingleton, s_dragAndDropHelper)
+
+DragAndDropHelper& DragAndDropHelper::instance()
+{
+ return s_dragAndDropHelper->instance;
+}
+
+bool DragAndDropHelper::isMimeDataSupported(const QMimeData* mimeData) const
+{
+ return mimeData->hasUrls() || mimeData->hasFormat("application/x-kde-dndextract");
+}
+
+void DragAndDropHelper::startDrag(QAbstractItemView* itemView,
+ Qt::DropActions supportedActions,
+ DolphinViewController* dolphinViewController)
+{
+ // Do not start a new drag until the previous one has been finished.
+ // This is a (possibly temporary) fix for bug #187884.
+ static bool isDragging = false;
+ if (isDragging) {
+ return;
+ }
+ isDragging = true;
+
+ const QModelIndexList indexes = itemView->selectionModel()->selectedIndexes();
+ if (!indexes.isEmpty()) {
QMimeData *data = itemView->model()->mimeData(indexes);
if (data == 0) {
return;
}
+ if (dolphinViewController != 0) {
+ dolphinViewController->requestToolTipHiding();
+ }
+
QDrag* drag = new QDrag(itemView);
- QPixmap pixmap;
- if (indexes.count() == 1) {
- QAbstractProxyModel* proxyModel = static_cast<QAbstractProxyModel*>(itemView->model());
- KDirModel* dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
- const QModelIndex index = proxyModel->mapToSource(indexes.first());
-
- const KFileItem item = dirModel->itemForIndex(index);
- pixmap = item.pixmap(KIconLoader::SizeMedium, KIconLoader::SizeMedium);
+ drag->setPixmap(createDragPixmap(itemView));
+ drag->setMimeData(data);
+
+ m_dragSource = itemView;
+ drag->exec(supportedActions, Qt::IgnoreAction);
+ m_dragSource = 0;
+ }
+ isDragging = false;
+}
+
+bool DragAndDropHelper::isDragSource(QAbstractItemView* itemView) const
+{
+ return (m_dragSource != 0) && (m_dragSource == itemView);
+}
+
+void DragAndDropHelper::dropUrls(const KFileItem& destItem,
+ const KUrl& destPath,
+ QDropEvent* event,
+ QWidget* widget)
+{
+ const bool dropToItem = !destItem.isNull() && (destItem.isDir() || destItem.isDesktopFile());
+ const KUrl destination = dropToItem ? destItem.url() : destPath;
+
+ const QMimeData* mimeData = event->mimeData();
+ if (mimeData->hasFormat("application/x-kde-dndextract")) {
+ QString remoteDBusClient = mimeData->data("application/x-kde-dndextract");
+ QDBusMessage message = QDBusMessage::createMethodCall(remoteDBusClient, "/DndExtract",
+ "org.kde.DndExtract", "extractSelectedFilesTo");
+ message.setArguments(QVariantList() << destination.path());
+ QDBusConnection::sessionBus().call(message);
+ } else {
+ const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
+ const int urlsCount = urls.count();
+ if (urlsCount == 0) {
+ // TODO: handle dropping of other data
+ } else if ((urlsCount == 1) && (urls.first() == destination)) {
+ emit errorMessage(i18nc("@info:status", "A folder cannot be dropped into itself"));
+ } else if (dropToItem) {
+ KonqOperations::doDrop(destItem, destination, event, widget);
} else {
- pixmap = KIcon("document-multiple").pixmap(KIconLoader::SizeMedium, KIconLoader::SizeMedium);
+ KonqOperations::doDrop(KFileItem(), destination, event, widget);
}
- drag->setPixmap(pixmap);
- drag->setMimeData(data);
- drag->exec(supportedActions, Qt::MoveAction);
}
}
-void DragAndDropHelper::drawHoverIndication(QAbstractItemView* itemView,
- const QRect& bounds,
- const QBrush& brush)
+DragAndDropHelper::DragAndDropHelper()
+ : m_dragSource(0)
{
- if (bounds.isEmpty()) {
- return;
+}
+
+QPixmap DragAndDropHelper::createDragPixmap(QAbstractItemView* itemView) const
+{
+ const QModelIndexList selectedIndexes = itemView->selectionModel()->selectedIndexes();
+ Q_ASSERT(!selectedIndexes.isEmpty());
+
+ QAbstractProxyModel* proxyModel = static_cast<QAbstractProxyModel*>(itemView->model());
+ KDirModel* dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
+
+ const int itemCount = selectedIndexes.count();
+
+ // If more than one item is dragged, align the items inside a
+ // rectangular grid. The maximum grid size is limited to 5 x 5 items.
+ int xCount = 3;
+ int size = KIconLoader::SizeMedium;
+ if (itemCount > 16) {
+ xCount = 5;
+ size = KIconLoader::SizeSmall;
+ } else if (itemCount > 9) {
+ xCount = 4;
+ size = KIconLoader::SizeSmallMedium;
+ }
+
+ if (itemCount < xCount) {
+ xCount = itemCount;
+ }
+
+ int yCount = itemCount / xCount;
+ if (itemCount % xCount != 0) {
+ ++yCount;
+ }
+ if (yCount > xCount) {
+ yCount = xCount;
}
- QWidget* widget = itemView->viewport();
-
- QPainter painter(widget);
- painter.save();
- QBrush blendedBrush(brush);
- QColor color = blendedBrush.color();
- color.setAlpha(64);
- blendedBrush.setColor(color);
-
- if (dynamic_cast<DolphinIconsView*>(itemView)) {
- const int radius = 10;
- QPainterPath path(QPointF(bounds.left(), bounds.top() + radius));
- path.quadTo(bounds.left(), bounds.top(), bounds.left() + radius, bounds.top());
- path.lineTo(bounds.right() - radius, bounds.top());
- path.quadTo(bounds.right(), bounds.top(), bounds.right(), bounds.top() + radius);
- path.lineTo(bounds.right(), bounds.bottom() - radius);
- path.quadTo(bounds.right(), bounds.bottom(), bounds.right() - radius, bounds.bottom());
- path.lineTo(bounds.left() + radius, bounds.bottom());
- path.quadTo(bounds.left(), bounds.bottom(), bounds.left(), bounds.bottom() - radius);
- path.closeSubpath();
-
- painter.setRenderHint(QPainter::Antialiasing);
- painter.fillPath(path, blendedBrush);
- } else {
- painter.fillRect(bounds, blendedBrush);
+ // Draw the selected items into the grid cells
+ QPixmap dragPixmap(xCount * size + xCount - 1, yCount * size + yCount - 1);
+ dragPixmap.fill(Qt::transparent);
+
+ QPainter painter(&dragPixmap);
+ int x = 0;
+ int y = 0;
+ foreach (const QModelIndex& selectedIndex, selectedIndexes) {
+ const QModelIndex index = proxyModel->mapToSource(selectedIndex);
+ const KFileItem item = dirModel->itemForIndex(index);
+ const QPixmap pixmap = item.pixmap(size, size);
+ painter.drawPixmap(x, y, pixmap);
+
+ x += size + 1;
+ if (x >= dragPixmap.width()) {
+ x = 0;
+ y += size + 1;
+ }
+ if (y >= dragPixmap.height()) {
+ break;
+ }
}
- painter.restore();
+
+ return dragPixmap;
}
+
+#include "draganddrophelper.moc"
projects / dolphin.git / blobdiff