git.sesse.net Git - kdenlive/blob - src/projectlistview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Jean-Baptiste Mardelle (jb@kdenlive.org)        *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  18  ***************************************************************************/
  19
  20
  21 #include "projectlistview.h"
  22 #include "projectitem.h"
  23 #include "subprojectitem.h"
  24 #include "folderprojectitem.h"
  25 #include "kdenlivesettings.h"
  26
  27 #include <KDebug>
  28 #include <KMenu>
  29 #include <KLocale>
  30
  31 #include <QApplication>
  32 #include <QHeaderView>
  33 #include <QAction>
  34
  35 ProjectListView::ProjectListView(QWidget *parent) :
  36         QTreeWidget(parent),
  37         m_dragStarted(false)
  38 {
  39     setSelectionMode(QAbstractItemView::ExtendedSelection);
  40     setDragDropMode(QAbstractItemView::DragDrop);
  41     setDropIndicatorShown(true);
  42     setAlternatingRowColors(true);
  43     setDragEnabled(true);
  44     setAcceptDrops(true);
  45     setFrameShape(QFrame::NoFrame);
  46     setRootIsDecorated(false);
  47
  48     setColumnCount(3);
  49     QStringList headers;
  50     headers << i18n("Clip") << i18n("Description") << i18n("Rating");
  51     setHeaderLabels(headers);
  52
  53     QHeaderView* headerView = header();
  54     headerView->setContextMenuPolicy(Qt::CustomContextMenu);
  55     connect(headerView, SIGNAL(customContextMenuRequested(const QPoint&)),
  56             this, SLOT(configureColumns(const QPoint&)));
  57     connect(this, SIGNAL(itemCollapsed(QTreeWidgetItem *)), this, SLOT(slotCollapsed(QTreeWidgetItem *)));
  58     connect(this, SIGNAL(itemExpanded(QTreeWidgetItem *)), this, SLOT(slotExpanded(QTreeWidgetItem *)));
  59     headerView->setClickable(true);
  60     headerView->setSortIndicatorShown(true);
  61     headerView->setMovable(false);
  62     sortByColumn(0, Qt::AscendingOrder);
  63     setSortingEnabled(true);
  64     installEventFilter(this);
  65     if (!KdenliveSettings::showdescriptioncolumn()) hideColumn(1);
  66     if (!KdenliveSettings::showratingcolumn()) hideColumn(2);
  67 }
  68
  69 ProjectListView::~ProjectListView()
  70 {
  71 }
  72
  73 void ProjectListView::processLayout()
  74 {
  75     executeDelayedItemsLayout();
  76 }
  77
  78 void ProjectListView::configureColumns(const QPoint& pos)
  79 {
  80     KMenu popup(this);
  81     popup.addTitle(i18nc("@title:menu", "Columns"));
  82
  83     QHeaderView* headerView = header();
  84     for (int i = 1; i < headerView->count(); ++i) {
  85         const QString text = model()->headerData(i, Qt::Horizontal).toString();
  86         QAction* action = popup.addAction(text);
  87         action->setCheckable(true);
  88         action->setChecked(!headerView->isSectionHidden(i));
  89         action->setData(i);
  90     }
  91
  92     QAction* activatedAction = popup.exec(header()->mapToGlobal(pos));
  93     if (activatedAction != 0) {
  94         const bool show = activatedAction->isChecked();
  95
  96         // remember the changed column visibility in the settings
  97         const int columnIndex = activatedAction->data().toInt();
  98         switch (columnIndex) {
  99         case 1:
 100             KdenliveSettings::setShowdescriptioncolumn(show);
 101             break;
 102         case 2:
 103             KdenliveSettings::setShowratingcolumn(show);
 104             break;
 105         default:
 106             break;
 107         }
 108
 109         // apply the changed column visibility
 110         if (show) {
 111             showColumn(columnIndex);
 112         } else {
 113             hideColumn(columnIndex);
 114         }
 115     }
 116 }
 117
 118 // virtual
 119 void ProjectListView::contextMenuEvent(QContextMenuEvent * event)
 120 {
 121     emit requestMenu(event->globalPos(), itemAt(event->pos()));
 122 }
 123
 124 void ProjectListView::slotCollapsed(QTreeWidgetItem *item)
 125 {
 126     if (item->type() == PROJECTFOLDERTYPE) {
 127         blockSignals(true);
 128         static_cast <FolderProjectItem *>(item)->switchIcon();
 129         blockSignals(false);
 130     }
 131 }
 132
 133 void ProjectListView::slotExpanded(QTreeWidgetItem *item)
 134 {
 135     if (item->type() == PROJECTFOLDERTYPE) {
 136         blockSignals(true);
 137         static_cast <FolderProjectItem *>(item)->switchIcon();
 138         blockSignals(false);
 139     }
 140 }
 141
 142 bool ProjectListView::eventFilter(QObject *obj, QEvent *event)
 143 {
 144     if (event->type() == QEvent::KeyPress || event->type() == QEvent::ShortcutOverride) {
 145         QKeyEvent* ke = (QKeyEvent*) event;
 146         if (ke->key() == Qt::Key_Plus) {
 147             if (currentItem()) currentItem()->setExpanded(true);
 148             event->accept();
 149             return true;
 150         } else if (ke->key() == Qt::Key_Minus) {
 151             if (currentItem()) currentItem()->setExpanded(false);
 152             event->accept();
 153             return true;
 154         } else {
 155             return false;
 156         }
 157     } else {
 158         // pass the event on to the parent class
 159         return QTreeWidget::eventFilter(obj, event);
 160     }
 161 }
 162
 163 // virtual
 164 void ProjectListView::mouseDoubleClickEvent(QMouseEvent * event)
 165 {
 166     QTreeWidgetItem *it = itemAt(event->pos());
 167     if (!it) {
 168         emit addClip();
 169         return;
 170     }
 171     ProjectItem *item;
 172     if (it->type() == PROJECTFOLDERTYPE) {
 173         if ((columnAt(event->pos().x()) == 0)) {
 174             QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
 175             int offset = pix.width() + indentation();
 176             if (event->pos().x() < offset) {
 177                 it->setExpanded(!it->isExpanded());
 178                 event->accept();
 179             } else QTreeWidget::mouseDoubleClickEvent(event);
 180         }
 181         return;
 182     }
 183     if (it->type() == PROJECTSUBCLIPTYPE) {
 184         // subitem
 185         if ((columnAt(event->pos().x()) == 1)) {
 186             QTreeWidget::mouseDoubleClickEvent(event);
 187             return;
 188         }
 189         item = static_cast <ProjectItem *>(it->parent());
 190     } else item = static_cast <ProjectItem *>(it);
 191
 192     if (!(item->flags() & Qt::ItemIsDragEnabled)) return;
 193
 194     int column = columnAt(event->pos().x());
 195     if (column == 0 && (item->clipType() == SLIDESHOW || item->clipType() == TEXT || item->clipType() == COLOR || it->childCount() > 0)) {
 196         QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
 197         int offset = pix.width() + indentation();
 198         if (item->parent()) offset += indentation();
 199         if (it->childCount() > 0) {
 200             if (offset > event->pos().x()) {
 201                 it->setExpanded(!it->isExpanded());
 202                 event->accept();
 203                 return;
 204             }
 205         } else if (pix.isNull() || offset < event->pos().x()) {
 206             QTreeWidget::mouseDoubleClickEvent(event);
 207             return;
 208         }
 209     }
 210     if ((column == 1) && it->type() != PROJECTSUBCLIPTYPE) {
 211         QTreeWidget::mouseDoubleClickEvent(event);
 212         return;
 213     }
 214     emit showProperties(item->referencedClip());
 215 }
 216
 217
 218 // virtual
 219 void ProjectListView::dropEvent(QDropEvent *event)
 220 {
 221     FolderProjectItem *item = NULL;
 222     QTreeWidgetItem *it = itemAt(event->pos());
 223     while (it && it->type() != PROJECTFOLDERTYPE) {
 224         it = it->parent();
 225     }
 226     if (it) item = static_cast <FolderProjectItem *>(it);
 227     if (event->mimeData()->hasUrls()) {
 228         QString groupName;
 229         QString groupId;
 230         if (item) {
 231             groupName = item->groupName();
 232             groupId = item->clipId();
 233         }
 234         emit addClip(event->mimeData()->urls(), groupName, groupId);
 235         event->setDropAction(Qt::CopyAction);
 236         event->accept();
 237         QTreeWidget::dropEvent(event);
 238         return;
 239     } else if (event->mimeData()->hasFormat("kdenlive/producerslist")) {
 240         if (item) {
 241             //emit addClip(event->mimeData->text());
 242             const QList <QTreeWidgetItem *> list = selectedItems();
 243             ProjectItem *clone;
 244             QString parentId = item->clipId();
 245             foreach(QTreeWidgetItem *it, list) {
 246                 // TODO allow dragging of folders ?
 247                 if (it->type() == PROJECTCLIPTYPE) {
 248                     if (it->parent()) clone = (ProjectItem*) it->parent()->takeChild(it->parent()->indexOfChild(it));
 249                     else clone = (ProjectItem*) takeTopLevelItem(indexOfTopLevelItem(it));
 250                     if (clone) {
 251                         item->addChild(clone);
 252                         QMap <QString, QString> props;
 253                         props.insert("groupname", item->groupName());
 254                         props.insert("groupid", parentId);
 255                         clone->setProperties(props);
 256                     }
 257                 } else item = NULL;
 258             }
 259         } else {
 260             // item dropped in empty zone, move it to top level
 261             const QList <QTreeWidgetItem *> list = selectedItems();
 262             ProjectItem *clone;
 263             foreach(QTreeWidgetItem *it, list) {
 264                 QTreeWidgetItem *parent = it->parent();
 265                 if (parent/* && ((ProjectItem *) it)->clipId() < 10000*/)  {
 266                     kDebug() << "++ item parent: " << parent->text(1);
 267                     clone = static_cast <ProjectItem*>(parent->takeChild(parent->indexOfChild(it)));
 268                     if (clone) {
 269                         addTopLevelItem(clone);
 270                         clone->clearProperty("groupname");
 271                         clone->clearProperty("groupid");
 272                     }
 273                 }
 274             }
 275         }
 276         emit projectModified();
 277     } else if (event->mimeData()->hasFormat("kdenlive/clip")) {
 278         QStringList list = QString(event->mimeData()->data("kdenlive/clip")).split(';');
 279         emit addClipCut(list.at(0), list.at(1).toInt(), list.at(2).toInt());
 280     }
 281     event->acceptProposedAction();
 282     QTreeWidget::dropEvent(event);
 283 }
 284
 285 // virtual
 286 void ProjectListView::mousePressEvent(QMouseEvent *event)
 287 {
 288     if (event->button() == Qt::LeftButton) {
 289         m_DragStartPosition = event->pos();
 290         m_dragStarted = true;
 291         /*QTreeWidgetItem *underMouse = itemAt(event->pos());
 292         if (underMouse && underMouse->isSelected()) emit focusMonitor();*/
 293     }
 294     QTreeWidget::mousePressEvent(event);
 295 }
 296
 297 // virtual
 298 void ProjectListView::mouseReleaseEvent(QMouseEvent *event)
 299 {
 300     QTreeWidget::mouseReleaseEvent(event);
 301     QTreeWidgetItem *underMouse = itemAt(event->pos());
 302     if (underMouse) emit focusMonitor();
 303 }
 304
 305 // virtual
 306 void ProjectListView::mouseMoveEvent(QMouseEvent *event)
 307 {
 308     //kDebug() << "// DRAG STARTED, MOUSE MOVED: ";
 309     if (!m_dragStarted) return;
 310
 311     if ((event->pos() - m_DragStartPosition).manhattanLength()
 312             < QApplication::startDragDistance())
 313         return;
 314
 315     QTreeWidgetItem *it = itemAt(m_DragStartPosition);
 316     if (!it) return;
 317     if (it->type() == PROJECTSUBCLIPTYPE) {
 318         // subitem
 319         SubProjectItem *clickItem = static_cast <SubProjectItem *>(it);
 320         if (clickItem && (clickItem->flags() & Qt::ItemIsDragEnabled)) {
 321             ProjectItem *clip = static_cast <ProjectItem *>(it->parent());
 322             QDrag *drag = new QDrag(this);
 323             QMimeData *mimeData = new QMimeData;
 324
 325             QStringList list;
 326             list.append(clip->clipId());
 327             QPoint p = clickItem->zone();
 328             list.append(QString::number(p.x()));
 329             list.append(QString::number(p.y()));
 330             QByteArray data;
 331             data.append(list.join(";").toUtf8());
 332             mimeData->setData("kdenlive/clip", data);
 333             drag->setMimeData(mimeData);
 334             drag->setPixmap(clickItem->data(0, Qt::DecorationRole).value<QPixmap>());
 335             drag->setHotSpot(QPoint(0, 50));
 336             drag->exec();
 337         }
 338     } else {
 339         if (it && (it->flags() & Qt::ItemIsDragEnabled)) {
 340             QDrag *drag = new QDrag(this);
 341             QMimeData *mimeData = new QMimeData;
 342             const QList <QTreeWidgetItem *> list = selectedItems();
 343             QStringList ids;
 344             foreach(const QTreeWidgetItem *item, list) {
 345                 if (item->type() == PROJECTFOLDERTYPE) {
 346                     const int children = item->childCount();
 347                     for (int i = 0; i < children; i++) {
 348                         ids.append(static_cast <ProjectItem *>(item->child(i))->clipId());
 349                     }
 350                 } else {
 351                     const ProjectItem *clip = static_cast <const ProjectItem *>(item);
 352                     ids.append(clip->clipId());
 353                 }
 354             }
 355             if (ids.isEmpty()) return;
 356             QByteArray data;
 357             data.append(ids.join(";").toUtf8()); //doc.toString().toUtf8());
 358             mimeData->setData("kdenlive/producerslist", data);
 359             //mimeData->setText(ids.join(";")); //doc.toString());
 360             //mimeData->setImageData(image);
 361             drag->setMimeData(mimeData);
 362             drag->setPixmap(it->data(0, Qt::DecorationRole).value<QPixmap>());
 363             drag->setHotSpot(QPoint(0, 50));
 364             drag->exec();
 365         }
 366         //event->accept();
 367     }
 368 }
 369
 370 // virtual
 371 void ProjectListView::dragLeaveEvent(QDragLeaveEvent *event)
 372 {
 373     // stop playing because we get a crash otherwise when fetching the thumbnails
 374     emit pauseMonitor();
 375     QTreeWidget::dragLeaveEvent(event);
 376 }
 377
 378 QStringList ProjectListView::mimeTypes() const
 379 {
 380     QStringList qstrList;
 381     qstrList << QTreeWidget::mimeTypes();
 382     // list of accepted mime types for drop
 383     qstrList.append("text/uri-list");
 384     qstrList.append("text/plain");
 385     qstrList.append("kdenlive/producerslist");
 386     qstrList.append("kdenlive/clip");
 387     return qstrList;
 388 }
 389
 390
 391 Qt::DropActions ProjectListView::supportedDropActions() const
 392 {
 393     // returns what actions are supported when dropping
 394     return Qt::MoveAction | Qt::CopyAction;
 395 }
 396
 397 #include "projectlistview.moc"