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