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