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     QString style = "QTreeView::branch:has-siblings:!adjoins-item{border-image: none 0;} \
  49     QTreeView::branch:has-siblings:adjoins-item {border-image: none 0;}      \
  50     QTreeView::branch:!has-children:!has-siblings:adjoins-item {border-image: none 0;} \
  51     QTreeView::branch:has-children:!has-siblings:closed,QTreeView::branch:closed:has-children:has-siblings {   \
  52          border-image: none;image: url(:/images/stylesheet-branch-closed.png);}      \
  53     QTreeView::branch:open:has-children:!has-siblings,QTreeView::branch:open:has-children:has-siblings  {    \
  54          border-image: none;image: url(:/images/stylesheet-branch-open.png);}";
  55
  56     setStyleSheet(style);
  57
  58     setColumnCount(3);
  59     QStringList headers;
  60     headers << i18n("Clip") << i18n("Description") << i18n("Rating");
  61     setHeaderLabels(headers);
  62     setIndentation(12);
  63
  64     QHeaderView* headerView = header();
  65     headerView->setContextMenuPolicy(Qt::CustomContextMenu);
  66     connect(headerView, SIGNAL(customContextMenuRequested(const QPoint&)),
  67             this, SLOT(configureColumns(const QPoint&)));
  68     connect(this, SIGNAL(itemCollapsed(QTreeWidgetItem *)), this, SLOT(slotCollapsed(QTreeWidgetItem *)));
  69     connect(this, SIGNAL(itemExpanded(QTreeWidgetItem *)), this, SLOT(slotExpanded(QTreeWidgetItem *)));
  70     headerView->setClickable(true);
  71     headerView->setSortIndicatorShown(true);
  72     headerView->setMovable(false);
  73     sortByColumn(0, Qt::AscendingOrder);
  74     setSortingEnabled(true);
  75     installEventFilter(this);
  76     if (!KdenliveSettings::showdescriptioncolumn()) hideColumn(1);
  77     if (!KdenliveSettings::showratingcolumn()) hideColumn(2);
  78 }
  79
  80 ProjectListView::~ProjectListView()
  81 {
  82 }
  83
  84 void ProjectListView::processLayout()
  85 {
  86     executeDelayedItemsLayout();
  87 }
  88
  89 void ProjectListView::configureColumns(const QPoint& pos)
  90 {
  91     KMenu popup(this);
  92     popup.addTitle(i18nc("@title:menu", "Columns"));
  93
  94     QHeaderView* headerView = header();
  95     for (int i = 1; i < headerView->count(); ++i) {
  96         const QString text = model()->headerData(i, Qt::Horizontal).toString();
  97         QAction* action = popup.addAction(text);
  98         action->setCheckable(true);
  99         action->setChecked(!headerView->isSectionHidden(i));
 100         action->setData(i);
 101     }
 102
 103     QAction* activatedAction = popup.exec(header()->mapToGlobal(pos));
 104     if (activatedAction != 0) {
 105         const bool show = activatedAction->isChecked();
 106
 107         // remember the changed column visibility in the settings
 108         const int columnIndex = activatedAction->data().toInt();
 109         switch (columnIndex) {
 110         case 1:
 111             KdenliveSettings::setShowdescriptioncolumn(show);
 112             break;
 113         case 2:
 114             KdenliveSettings::setShowratingcolumn(show);
 115             break;
 116         default:
 117             break;
 118         }
 119
 120         // apply the changed column visibility
 121         if (show) {
 122             showColumn(columnIndex);
 123         } else {
 124             hideColumn(columnIndex);
 125         }
 126     }
 127 }
 128
 129 // virtual
 130 void ProjectListView::contextMenuEvent(QContextMenuEvent * event)
 131 {
 132     emit requestMenu(event->globalPos(), itemAt(event->pos()));
 133 }
 134
 135 void ProjectListView::slotCollapsed(QTreeWidgetItem *item)
 136 {
 137     if (item->type() == PROJECTFOLDERTYPE) {
 138         blockSignals(true);
 139         static_cast <FolderProjectItem *>(item)->switchIcon();
 140         blockSignals(false);
 141     }
 142 }
 143
 144 void ProjectListView::slotExpanded(QTreeWidgetItem *item)
 145 {
 146     if (item->type() == PROJECTFOLDERTYPE) {
 147         blockSignals(true);
 148         static_cast <FolderProjectItem *>(item)->switchIcon();
 149         blockSignals(false);
 150     }
 151 }
 152
 153 bool ProjectListView::eventFilter(QObject *obj, QEvent *event)
 154 {
 155     if (event->type() == QEvent::KeyPress || event->type() == QEvent::ShortcutOverride) {
 156         QKeyEvent* ke = (QKeyEvent*) event;
 157         if (ke->key() == Qt::Key_Plus) {
 158             if (currentItem()) currentItem()->setExpanded(true);
 159             event->accept();
 160             return true;
 161         } else if (ke->key() == Qt::Key_Minus) {
 162             if (currentItem()) currentItem()->setExpanded(false);
 163             event->accept();
 164             return true;
 165         } else {
 166             return false;
 167         }
 168     } else {
 169         // pass the event on to the parent class
 170         return QTreeWidget::eventFilter(obj, event);
 171     }
 172 }
 173
 174 // virtual
 175 void ProjectListView::mouseDoubleClickEvent(QMouseEvent * event)
 176 {
 177     QTreeWidgetItem *it = itemAt(event->pos());
 178     if (!it) {
 179         emit addClip();
 180         return;
 181     }
 182     ProjectItem *item;
 183     if (it->type() == PROJECTFOLDERTYPE) {
 184         if ((columnAt(event->pos().x()) == 0)) {
 185             QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
 186             int offset = pix.width() + indentation();
 187             if (event->pos().x() < offset) {
 188                 it->setExpanded(!it->isExpanded());
 189                 event->accept();
 190             } else QTreeWidget::mouseDoubleClickEvent(event);
 191         }
 192         return;
 193     }
 194     if (it->type() == PROJECTSUBCLIPTYPE) {
 195         // subitem
 196         if ((columnAt(event->pos().x()) == 1)) {
 197             QTreeWidget::mouseDoubleClickEvent(event);
 198             return;
 199         }
 200         item = static_cast <ProjectItem *>(it->parent());
 201     } else item = static_cast <ProjectItem *>(it);
 202
 203     if (!(item->flags() & Qt::ItemIsDragEnabled)) return;
 204
 205     int column = columnAt(event->pos().x());
 206     if (column == 0 && (item->clipType() == SLIDESHOW || item->clipType() == TEXT || item->clipType() == COLOR || it->childCount() > 0)) {
 207         QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
 208         int offset = pix.width() + indentation();
 209         if (item->parent()) offset += indentation();
 210         if (it->childCount() > 0) {
 211             if (offset > event->pos().x()) {
 212                 it->setExpanded(!it->isExpanded());
 213                 event->accept();
 214                 return;
 215             }
 216         } else if (pix.isNull() || offset < event->pos().x()) {
 217             QTreeWidget::mouseDoubleClickEvent(event);
 218             return;
 219         }
 220     }
 221     if ((column == 1) && it->type() != PROJECTSUBCLIPTYPE) {
 222         QTreeWidget::mouseDoubleClickEvent(event);
 223         return;
 224     }
 225     emit showProperties(item->referencedClip());
 226 }
 227
 228
 229 // virtual
 230 void ProjectListView::dropEvent(QDropEvent *event)
 231 {
 232     FolderProjectItem *item = NULL;
 233     QTreeWidgetItem *it = itemAt(event->pos());
 234     while (it && it->type() != PROJECTFOLDERTYPE) {
 235         it = it->parent();
 236     }
 237     if (it) item = static_cast <FolderProjectItem *>(it);
 238     if (event->mimeData()->hasUrls()) {
 239         QString groupName;
 240         QString groupId;
 241         if (item) {
 242             groupName = item->groupName();
 243             groupId = item->clipId();
 244         }
 245         emit addClip(event->mimeData()->urls(), groupName, groupId);
 246         event->setDropAction(Qt::CopyAction);
 247         event->accept();
 248         QTreeWidget::dropEvent(event);
 249         return;
 250     } else if (event->mimeData()->hasFormat("kdenlive/producerslist")) {
 251         if (item) {
 252             //emit addClip(event->mimeData->text());
 253             const QList <QTreeWidgetItem *> list = selectedItems();
 254             ProjectItem *clone;
 255             QString parentId = item->clipId();
 256             foreach(QTreeWidgetItem *it, list) {
 257                 // TODO allow dragging of folders ?
 258                 if (it->type() == PROJECTCLIPTYPE) {
 259                     if (it->parent()) clone = (ProjectItem*) it->parent()->takeChild(it->parent()->indexOfChild(it));
 260                     else clone = (ProjectItem*) takeTopLevelItem(indexOfTopLevelItem(it));
 261                     if (clone) {
 262                         item->addChild(clone);
 263                         QMap <QString, QString> props;
 264                         props.insert("groupname", item->groupName());
 265                         props.insert("groupid", parentId);
 266                         clone->setProperties(props);
 267                     }
 268                 } else item = NULL;
 269             }
 270         } else {
 271             // item dropped in empty zone, move it to top level
 272             const QList <QTreeWidgetItem *> list = selectedItems();
 273             ProjectItem *clone;
 274             foreach(QTreeWidgetItem *it, list) {
 275                 QTreeWidgetItem *parent = it->parent();
 276                 if (parent/* && ((ProjectItem *) it)->clipId() < 10000*/)  {
 277                     kDebug() << "++ item parent: " << parent->text(1);
 278                     clone = static_cast <ProjectItem*>(parent->takeChild(parent->indexOfChild(it)));
 279                     if (clone) {
 280                         addTopLevelItem(clone);
 281                         clone->clearProperty("groupname");
 282                         clone->clearProperty("groupid");
 283                     }
 284                 }
 285             }
 286         }
 287         emit projectModified();
 288     } else if (event->mimeData()->hasFormat("kdenlive/clip")) {
 289         QStringList list = QString(event->mimeData()->data("kdenlive/clip")).split(';');
 290         emit addClipCut(list.at(0), list.at(1).toInt(), list.at(2).toInt());
 291     }
 292     event->acceptProposedAction();
 293     QTreeWidget::dropEvent(event);
 294 }
 295
 296 // virtual
 297 void ProjectListView::mousePressEvent(QMouseEvent *event)
 298 {
 299     if (event->button() == Qt::LeftButton) {
 300         m_DragStartPosition = event->pos();
 301         m_dragStarted = true;
 302         /*QTreeWidgetItem *underMouse = itemAt(event->pos());
 303         if (underMouse && underMouse->isSelected()) emit focusMonitor();*/
 304     }
 305     QTreeWidget::mousePressEvent(event);
 306 }
 307
 308 // virtual
 309 void ProjectListView::mouseReleaseEvent(QMouseEvent *event)
 310 {
 311     QTreeWidget::mouseReleaseEvent(event);
 312     QTreeWidgetItem *underMouse = itemAt(event->pos());
 313     if (underMouse) emit focusMonitor();
 314 }
 315
 316 // virtual
 317 void ProjectListView::mouseMoveEvent(QMouseEvent *event)
 318 {
 319     //kDebug() << "// DRAG STARTED, MOUSE MOVED: ";
 320     if (!m_dragStarted) return;
 321
 322     if ((event->pos() - m_DragStartPosition).manhattanLength()
 323             < QApplication::startDragDistance())
 324         return;
 325
 326     QTreeWidgetItem *it = itemAt(m_DragStartPosition);
 327     if (!it) return;
 328     if (it->type() == PROJECTSUBCLIPTYPE) {
 329         // subitem
 330         SubProjectItem *clickItem = static_cast <SubProjectItem *>(it);
 331         if (clickItem && (clickItem->flags() & Qt::ItemIsDragEnabled)) {
 332             ProjectItem *clip = static_cast <ProjectItem *>(it->parent());
 333             QDrag *drag = new QDrag(this);
 334             QMimeData *mimeData = new QMimeData;
 335
 336             QStringList list;
 337             list.append(clip->clipId());
 338             QPoint p = clickItem->zone();
 339             list.append(QString::number(p.x()));
 340             list.append(QString::number(p.y()));
 341             QByteArray data;
 342             data.append(list.join(";").toUtf8());
 343             mimeData->setData("kdenlive/clip", data);
 344             drag->setMimeData(mimeData);
 345             drag->setPixmap(clickItem->data(0, Qt::DecorationRole).value<QPixmap>());
 346             drag->setHotSpot(QPoint(0, 50));
 347             drag->exec();
 348         }
 349     } else {
 350         if (it && (it->flags() & Qt::ItemIsDragEnabled)) {
 351             QDrag *drag = new QDrag(this);
 352             QMimeData *mimeData = new QMimeData;
 353             const QList <QTreeWidgetItem *> list = selectedItems();
 354             QStringList ids;
 355             foreach(const QTreeWidgetItem *item, list) {
 356                 if (item->type() == PROJECTFOLDERTYPE) {
 357                     const int children = item->childCount();
 358                     for (int i = 0; i < children; i++) {
 359                         ids.append(static_cast <ProjectItem *>(item->child(i))->clipId());
 360                     }
 361                 } else {
 362                     const ProjectItem *clip = static_cast <const ProjectItem *>(item);
 363                     ids.append(clip->clipId());
 364                 }
 365             }
 366             if (ids.isEmpty()) return;
 367             QByteArray data;
 368             data.append(ids.join(";").toUtf8()); //doc.toString().toUtf8());
 369             mimeData->setData("kdenlive/producerslist", data);
 370             //mimeData->setText(ids.join(";")); //doc.toString());
 371             //mimeData->setImageData(image);
 372             drag->setMimeData(mimeData);
 373             drag->setPixmap(it->data(0, Qt::DecorationRole).value<QPixmap>());
 374             drag->setHotSpot(QPoint(0, 50));
 375             drag->exec();
 376         }
 377         //event->accept();
 378     }
 379 }
 380
 381 // virtual
 382 void ProjectListView::dragLeaveEvent(QDragLeaveEvent *event)
 383 {
 384     // stop playing because we get a crash otherwise when fetching the thumbnails
 385     emit pauseMonitor();
 386     QTreeWidget::dragLeaveEvent(event);
 387 }
 388
 389 QStringList ProjectListView::mimeTypes() const
 390 {
 391     QStringList qstrList;
 392     qstrList << QTreeWidget::mimeTypes();
 393     // list of accepted mime types for drop
 394     qstrList.append("text/uri-list");
 395     qstrList.append("text/plain");
 396     qstrList.append("kdenlive/producerslist");
 397     qstrList.append("kdenlive/clip");
 398     return qstrList;
 399 }
 400
 401
 402 Qt::DropActions ProjectListView::supportedDropActions() const
 403 {
 404     // returns what actions are supported when dropping
 405     return Qt::MoveAction | Qt::CopyAction;
 406 }
 407
 408 #include "projectlistview.moc"