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     updateStyleSheet();
  49
  50     setColumnCount(4);
  51     QStringList headers;
  52     headers << i18n("Clip") << i18n("Description") << i18n("Rating") << i18n("Date");
  53     setHeaderLabels(headers);
  54     setIndentation(12);
  55
  56     QHeaderView* headerView = header();
  57     headerView->setContextMenuPolicy(Qt::CustomContextMenu);
  58     connect(headerView, SIGNAL(customContextMenuRequested(const QPoint&)),
  59             this, SLOT(configureColumns(const QPoint&)));
  60     connect(this, SIGNAL(itemCollapsed(QTreeWidgetItem *)), this, SLOT(slotCollapsed(QTreeWidgetItem *)));
  61     connect(this, SIGNAL(itemExpanded(QTreeWidgetItem *)), this, SLOT(slotExpanded(QTreeWidgetItem *)));
  62     headerView->setClickable(true);
  63     headerView->setSortIndicatorShown(true);
  64     headerView->setMovable(false);
  65     sortByColumn(0, Qt::AscendingOrder);
  66     setSortingEnabled(true);
  67     installEventFilter(this);
  68     if (!KdenliveSettings::showdescriptioncolumn()) hideColumn(1);
  69     if (!KdenliveSettings::showratingcolumn()) hideColumn(2);
  70     if (!KdenliveSettings::showdatecolumn()) hideColumn(3);
  71 }
  72
  73 ProjectListView::~ProjectListView()
  74 {
  75 }
  76
  77 void ProjectListView::updateStyleSheet()
  78 {
  79     QString style = "QTreeView::branch:has-siblings:!adjoins-item{border-image: none;border:0px} \
  80     QTreeView::branch:has-siblings:adjoins-item {border-image: none;border:0px}      \
  81     QTreeView::branch:!has-children:!has-siblings:adjoins-item {border-image: none;border:0px} \
  82     QTreeView::branch:has-children:!has-siblings:closed,QTreeView::branch:closed:has-children:has-siblings {   \
  83          border-image: none;image: url(:/images/stylesheet-branch-closed.png);}      \
  84     QTreeView::branch:open:has-children:!has-siblings,QTreeView::branch:open:has-children:has-siblings  {    \
  85          border-image: none;image: url(:/images/stylesheet-branch-open.png);}";
  86     setStyleSheet(style);
  87 }
  88
  89 void ProjectListView::processLayout()
  90 {
  91     executeDelayedItemsLayout();
  92 }
  93
  94 void ProjectListView::configureColumns(const QPoint& pos)
  95 {
  96     KMenu popup(this);
  97     popup.addTitle(i18nc("@title:menu", "Columns"));
  98
  99     QHeaderView* headerView = header();
 100     for (int i = 1; i < headerView->count(); ++i) {
 101         const QString text = model()->headerData(i, Qt::Horizontal).toString();
 102         QAction* action = popup.addAction(text);
 103         action->setCheckable(true);
 104         action->setChecked(!headerView->isSectionHidden(i));
 105         action->setData(i);
 106     }
 107
 108     QAction* activatedAction = popup.exec(header()->mapToGlobal(pos));
 109     if (activatedAction != 0) {
 110         const bool show = activatedAction->isChecked();
 111
 112         // remember the changed column visibility in the settings
 113         const int columnIndex = activatedAction->data().toInt();
 114         switch (columnIndex) {
 115         case 1:
 116             KdenliveSettings::setShowdescriptioncolumn(show);
 117             break;
 118         case 2:
 119             KdenliveSettings::setShowratingcolumn(show);
 120             break;
 121         case 3:
 122             KdenliveSettings::setShowdatecolumn(show);
 123             break;
 124         default:
 125             break;
 126         }
 127
 128         // apply the changed column visibility
 129         if (show) {
 130             showColumn(columnIndex);
 131         } else {
 132             hideColumn(columnIndex);
 133         }
 134     }
 135 }
 136
 137 // virtual
 138 void ProjectListView::contextMenuEvent(QContextMenuEvent * event)
 139 {
 140     emit requestMenu(event->globalPos(), itemAt(event->pos()));
 141 }
 142
 143 void ProjectListView::slotCollapsed(QTreeWidgetItem *item)
 144 {
 145     if (item->type() == PROJECTFOLDERTYPE) {
 146         blockSignals(true);
 147         static_cast <FolderProjectItem *>(item)->switchIcon();
 148         blockSignals(false);
 149     }
 150 }
 151
 152 void ProjectListView::slotExpanded(QTreeWidgetItem *item)
 153 {
 154     if (item->type() == PROJECTFOLDERTYPE) {
 155         blockSignals(true);
 156         static_cast <FolderProjectItem *>(item)->switchIcon();
 157         blockSignals(false);
 158     }
 159 }
 160
 161 bool ProjectListView::eventFilter(QObject *obj, QEvent *event)
 162 {
 163     if (event->type() == QEvent::KeyPress || event->type() == QEvent::ShortcutOverride) {
 164         QKeyEvent* ke = (QKeyEvent*) event;
 165         if (ke->key() == Qt::Key_Plus) {
 166             if (currentItem()) currentItem()->setExpanded(true);
 167             event->accept();
 168             return true;
 169         } else if (ke->key() == Qt::Key_Minus) {
 170             if (currentItem()) currentItem()->setExpanded(false);
 171             event->accept();
 172             return true;
 173         } else {
 174             return false;
 175         }
 176     } else {
 177         // pass the event on to the parent class
 178         return QTreeWidget::eventFilter(obj, event);
 179     }
 180 }
 181
 182 // virtual
 183 void ProjectListView::mouseDoubleClickEvent(QMouseEvent * event)
 184 {
 185     QTreeWidgetItem *it = itemAt(event->pos());
 186     if (!it) {
 187         emit addClip();
 188         return;
 189     }
 190     ProjectItem *item;
 191     if (it->type() == PROJECTFOLDERTYPE) {
 192         if ((columnAt(event->pos().x()) == 0)) {
 193             QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
 194             int offset = pix.width() + indentation();
 195             if (event->pos().x() < offset) {
 196                 it->setExpanded(!it->isExpanded());
 197                 event->accept();
 198             } else QTreeWidget::mouseDoubleClickEvent(event);
 199         }
 200         return;
 201     }
 202     if (it->type() == PROJECTSUBCLIPTYPE) {
 203         // subitem
 204         if ((columnAt(event->pos().x()) == 1)) {
 205             QTreeWidget::mouseDoubleClickEvent(event);
 206             return;
 207         }
 208         item = static_cast <ProjectItem *>(it->parent());
 209     } else item = static_cast <ProjectItem *>(it);
 210
 211     if (!(item->flags() & Qt::ItemIsDragEnabled)) return;
 212
 213     int column = columnAt(event->pos().x());
 214     if (column == 0 && (item->clipType() == SLIDESHOW || item->clipType() == TEXT || item->clipType() == COLOR || it->childCount() > 0)) {
 215         QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
 216         int offset = pix.width() + indentation();
 217         if (item->parent()) offset += indentation();
 218         if (it->childCount() > 0) {
 219             if (offset > event->pos().x()) {
 220                 it->setExpanded(!it->isExpanded());
 221                 event->accept();
 222                 return;
 223             }
 224         } else if (pix.isNull() || offset < event->pos().x()) {
 225             QTreeWidget::mouseDoubleClickEvent(event);
 226             return;
 227         }
 228     }
 229     if ((column == 1) && it->type() != PROJECTSUBCLIPTYPE) {
 230         QTreeWidget::mouseDoubleClickEvent(event);
 231         return;
 232     }
 233     emit showProperties(item->referencedClip());
 234 }
 235
 236
 237 // virtual
 238 void ProjectListView::dropEvent(QDropEvent *event)
 239 {
 240     FolderProjectItem *item = NULL;
 241     QTreeWidgetItem *it = itemAt(event->pos());
 242     while (it && it->type() != PROJECTFOLDERTYPE) {
 243         it = it->parent();
 244     }
 245     if (it) item = static_cast <FolderProjectItem *>(it);
 246     if (event->mimeData()->hasUrls()) {
 247         QString groupName;
 248         QString groupId;
 249         if (item) {
 250             groupName = item->groupName();
 251             groupId = item->clipId();
 252         }
 253         emit addClip(event->mimeData()->urls(), groupName, groupId);
 254         event->setDropAction(Qt::CopyAction);
 255         event->accept();
 256         QTreeWidget::dropEvent(event);
 257         return;
 258     } else if (event->mimeData()->hasFormat("kdenlive/producerslist")) {
 259         if (item) {
 260             //emit addClip(event->mimeData->text());
 261             const QList <QTreeWidgetItem *> list = selectedItems();
 262             ProjectItem *clone;
 263             QString parentId = item->clipId();
 264             foreach(QTreeWidgetItem *it, list) {
 265                 // TODO allow dragging of folders ?
 266                 if (it->type() == PROJECTCLIPTYPE) {
 267                     if (it->parent()) clone = (ProjectItem*) it->parent()->takeChild(it->parent()->indexOfChild(it));
 268                     else clone = (ProjectItem*) takeTopLevelItem(indexOfTopLevelItem(it));
 269                     if (clone && item) {
 270                         item->addChild(clone);
 271                         QMap <QString, QString> props;
 272                         props.insert("groupname", item->groupName());
 273                         props.insert("groupid", parentId);
 274                         clone->setProperties(props);
 275                     }
 276                 } else item = NULL;
 277             }
 278         } else {
 279             // item dropped in empty zone, move it to top level
 280             const QList <QTreeWidgetItem *> list = selectedItems();
 281             ProjectItem *clone;
 282             foreach(QTreeWidgetItem *it, list) {
 283                 if (it->type() != PROJECTCLIPTYPE) continue;
 284                 QTreeWidgetItem *parent = it->parent();
 285                 if (parent/* && ((ProjectItem *) it)->clipId() < 10000*/)  {
 286                     kDebug() << "++ item parent: " << parent->text(1);
 287                     clone = static_cast <ProjectItem*>(parent->takeChild(parent->indexOfChild(it)));
 288                     if (clone) {
 289                         addTopLevelItem(clone);
 290                         clone->clearProperty("groupname");
 291                         clone->clearProperty("groupid");
 292                     }
 293                 }
 294             }
 295         }
 296         emit projectModified();
 297     } else if (event->mimeData()->hasFormat("kdenlive/clip")) {
 298         QStringList list = QString(event->mimeData()->data("kdenlive/clip")).split(';');
 299         emit addClipCut(list.at(0), list.at(1).toInt(), list.at(2).toInt());
 300     }
 301     if (event->source() == this) {
 302         event->setDropAction(Qt::MoveAction);
 303         event->accept();
 304     } else {
 305         event->acceptProposedAction();
 306     }
 307     QTreeWidget::dropEvent(event);
 308 }
 309
 310 // virtual
 311 void ProjectListView::mousePressEvent(QMouseEvent *event)
 312 {
 313     if (event->button() == Qt::LeftButton) {
 314         m_DragStartPosition = event->pos();
 315         m_dragStarted = true;
 316         /*QTreeWidgetItem *underMouse = itemAt(event->pos());
 317         ProjectItem *item = static_cast<ProjectItem *>(underMouse);
 318         if (item) {
 319             QRect itemRect = visualItemRect(item);
 320             if (item->underJobMenu(itemRect, event->pos())) {
 321                 emit display
 322             }
 323
 324             && underMouse->isSelected()) emit focusMonitor()
 325         }*/
 326     }
 327     QTreeWidget::mousePressEvent(event);
 328 }
 329
 330 // virtual
 331 void ProjectListView::mouseReleaseEvent(QMouseEvent *event)
 332 {
 333     QTreeWidget::mouseReleaseEvent(event);
 334     QTreeWidgetItem *underMouse = itemAt(event->pos());
 335     if (underMouse) emit focusMonitor();
 336 }
 337
 338 // virtual
 339 void ProjectListView::mouseMoveEvent(QMouseEvent *event)
 340 {
 341     //kDebug() << "// DRAG STARTED, MOUSE MOVED: ";
 342     if (!m_dragStarted) return;
 343
 344     if ((event->pos() - m_DragStartPosition).manhattanLength()
 345             < QApplication::startDragDistance())
 346         return;
 347
 348     QTreeWidgetItem *it = itemAt(m_DragStartPosition);
 349     if (!it) return;
 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 if (item->type() == PROJECTSUBCLIPTYPE) {
 362                 const ProjectItem *parentclip = static_cast <const ProjectItem *>(item->parent());
 363                 const SubProjectItem *clickItem = static_cast <const SubProjectItem *>(item);
 364                 QPoint p = clickItem->zone();
 365                 QString data = parentclip->clipId();
 366                 data.append("/" + QString::number(p.x()));
 367                 data.append("/" + QString::number(p.y()));
 368                 ids.append(data);
 369             } else {
 370                 const ProjectItem *clip = static_cast <const ProjectItem *>(item);
 371                 ids.append(clip->clipId());
 372             }
 373         }
 374         if (ids.isEmpty()) return;
 375         QByteArray data;
 376         data.append(ids.join(";").toUtf8()); //doc.toString().toUtf8());
 377         mimeData->setData("kdenlive/producerslist", data);
 378         //mimeData->setText(ids.join(";")); //doc.toString());
 379         //mimeData->setImageData(image);
 380         drag->setMimeData(mimeData);
 381         drag->setPixmap(it->data(0, Qt::DecorationRole).value<QPixmap>());
 382         drag->setHotSpot(QPoint(0, 40));
 383         drag->exec(Qt::CopyAction | Qt::MoveAction, Qt::CopyAction);
 384     }
 385 }
 386
 387 // virtual
 388 void ProjectListView::dragLeaveEvent(QDragLeaveEvent *event)
 389 {
 390     // stop playing because we get a crash otherwise when fetching the thumbnails
 391     emit pauseMonitor();
 392     QTreeWidget::dragLeaveEvent(event);
 393 }
 394
 395 QStringList ProjectListView::mimeTypes() const
 396 {
 397     QStringList qstrList;
 398     qstrList << QTreeWidget::mimeTypes();
 399     // list of accepted mime types for drop
 400     qstrList.append("text/uri-list");
 401     qstrList.append("text/plain");
 402     qstrList.append("kdenlive/producerslist");
 403     qstrList.append("kdenlive/clip");
 404     return qstrList;
 405 }
 406
 407
 408 Qt::DropActions ProjectListView::supportedDropActions() const
 409 {
 410     // returns what actions are supported when dropping
 411     return Qt::MoveAction | Qt::CopyAction;
 412 }
 413
 414 #include "projectlistview.moc"