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