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 <KLocalizedString>
  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(QPoint)),
  59             this, SLOT(configureColumns(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 pauseMonitor();
 188         emit addClip();
 189         return;
 190     }
 191     ProjectItem *item;
 192     if (it->type() == PROJECTFOLDERTYPE) {
 193         if ((columnAt(event->pos().x()) == 0)) {
 194             QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
 195             int offset = pix.width() + indentation();
 196             if (event->pos().x() < offset) {
 197                 it->setExpanded(!it->isExpanded());
 198                 event->accept();
 199             } else QTreeWidget::mouseDoubleClickEvent(event);
 200         }
 201         return;
 202     }
 203     if (it->type() == PROJECTSUBCLIPTYPE) {
 204         // subitem
 205         if ((columnAt(event->pos().x()) == 1)) {
 206             QTreeWidget::mouseDoubleClickEvent(event);
 207             return;
 208         }
 209         item = static_cast <ProjectItem *>(it->parent());
 210     } else item = static_cast <ProjectItem *>(it);
 211
 212     if (!(item->flags() & Qt::ItemIsDragEnabled)) return;
 213
 214     int column = columnAt(event->pos().x());
 215     if (column == 0 && (item->clipType() == SLIDESHOW || item->clipType() == TEXT || item->clipType() == COLOR || it->childCount() > 0)) {
 216         QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
 217         int offset = pix.width() + indentation();
 218         if (item->parent()) offset += indentation();
 219         if (it->childCount() > 0) {
 220             if (offset > event->pos().x()) {
 221                 it->setExpanded(!it->isExpanded());
 222                 event->accept();
 223                 return;
 224             }
 225         } else if (pix.isNull() || offset < event->pos().x()) {
 226             QTreeWidget::mouseDoubleClickEvent(event);
 227             return;
 228         }
 229     }
 230     if ((column == 1) && it->type() != PROJECTSUBCLIPTYPE) {
 231         QTreeWidget::mouseDoubleClickEvent(event);
 232         return;
 233     }
 234     emit showProperties(item->referencedClip());
 235 }
 236
 237
 238 // virtual
 239 void ProjectListView::dropEvent(QDropEvent *event)
 240 {
 241     FolderProjectItem *item = NULL;
 242     QTreeWidgetItem *it = itemAt(event->pos());
 243     while (it && it->type() != PROJECTFOLDERTYPE) {
 244         it = it->parent();
 245     }
 246     if (it) item = static_cast <FolderProjectItem *>(it);
 247     if (event->mimeData()->hasUrls()) {
 248         QString groupName;
 249         QString groupId;
 250         if (item) {
 251             groupName = item->groupName();
 252             groupId = item->clipId();
 253         }
 254         emit addClip(event->mimeData()->urls(), groupName, groupId);
 255         event->setDropAction(Qt::CopyAction);
 256         event->accept();
 257         QTreeWidget::dropEvent(event);
 258         return;
 259     } else if (event->mimeData()->hasFormat("kdenlive/producerslist")) {
 260         if (item) {
 261             //emit addClip(event->mimeData->text());
 262             const QList <QTreeWidgetItem *> list = selectedItems();
 263             ProjectItem *clone;
 264             QString parentId = item->clipId();
 265             foreach(QTreeWidgetItem *it, list) {
 266                 // TODO allow dragging of folders ?
 267                 if (it->type() == PROJECTCLIPTYPE) {
 268                     if (it->parent()) clone = (ProjectItem*) it->parent()->takeChild(it->parent()->indexOfChild(it));
 269                     else clone = (ProjectItem*) takeTopLevelItem(indexOfTopLevelItem(it));
 270                     if (clone && item) {
 271                         item->addChild(clone);
 272                         QMap <QString, QString> props;
 273                         props.insert("groupname", item->groupName());
 274                         props.insert("groupid", parentId);
 275                         clone->setProperties(props);
 276                     }
 277                 } else item = NULL;
 278             }
 279         } else {
 280             // item dropped in empty zone, move it to top level
 281             const QList <QTreeWidgetItem *> list = selectedItems();
 282             ProjectItem *clone;
 283             foreach(QTreeWidgetItem *it, list) {
 284                 if (it->type() != PROJECTCLIPTYPE) continue;
 285                 QTreeWidgetItem *parent = it->parent();
 286                 if (parent/* && ((ProjectItem *) it)->clipId() < 10000*/)  {
 287                     kDebug() << "++ item parent: " << parent->text(1);
 288                     clone = static_cast <ProjectItem*>(parent->takeChild(parent->indexOfChild(it)));
 289                     if (clone) {
 290                         addTopLevelItem(clone);
 291                         clone->clearProperty("groupname");
 292                         clone->clearProperty("groupid");
 293                     }
 294                 }
 295             }
 296         }
 297         emit projectModified();
 298     } else if (event->mimeData()->hasFormat("kdenlive/clip")) {
 299         QStringList list = QString(event->mimeData()->data("kdenlive/clip")).split(';');
 300         emit addClipCut(list.at(0), list.at(1).toInt(), list.at(2).toInt());
 301     }
 302     if (event->source() == this) {
 303         event->setDropAction(Qt::MoveAction);
 304         event->accept();
 305     } else {
 306         event->acceptProposedAction();
 307     }
 308     QTreeWidget::dropEvent(event);
 309 }
 310
 311 // virtual
 312 void ProjectListView::mousePressEvent(QMouseEvent *event)
 313 {
 314     if (event->button() == Qt::LeftButton) {
 315         m_DragStartPosition = event->pos();
 316         m_dragStarted = true;
 317         /*QTreeWidgetItem *underMouse = itemAt(event->pos());
 318         ProjectItem *item = static_cast<ProjectItem *>(underMouse);
 319         if (item) {
 320             QRect itemRect = visualItemRect(item);
 321             if (item->underJobMenu(itemRect, event->pos())) {
 322                 emit display
 323             }
 324
 325             && underMouse->isSelected()) emit focusMonitor()
 326         }*/
 327     }
 328     QTreeWidget::mousePressEvent(event);
 329 }
 330
 331 // virtual
 332 void ProjectListView::mouseReleaseEvent(QMouseEvent *event)
 333 {
 334     QTreeWidget::mouseReleaseEvent(event);
 335     QTreeWidgetItem *underMouse = itemAt(event->pos());
 336     if (underMouse) emit focusMonitor(true);
 337 }
 338
 339 // virtual
 340 void ProjectListView::mouseMoveEvent(QMouseEvent *event)
 341 {
 342     //kDebug() << "// DRAG STARTED, MOUSE MOVED: ";
 343     if (!m_dragStarted) return;
 344
 345     if ((event->pos() - m_DragStartPosition).manhattanLength()
 346             < QApplication::startDragDistance())
 347         return;
 348
 349     QTreeWidgetItem *it = itemAt(m_DragStartPosition);
 350     if (!it) return;
 351     if (it && (it->flags() & Qt::ItemIsDragEnabled)) {
 352         QDrag *drag = new QDrag(this);
 353         QMimeData *mimeData = new QMimeData;
 354         const QList <QTreeWidgetItem *> list = selectedItems();
 355         QStringList ids;
 356         foreach(const QTreeWidgetItem *item, list) {
 357             if (item->type() == PROJECTFOLDERTYPE) {
 358                 const int children = item->childCount();
 359                 for (int i = 0; i < children; ++i) {
 360                     ids.append(static_cast <ProjectItem *>(item->child(i))->clipId());
 361                 }
 362             } else if (item->type() == PROJECTSUBCLIPTYPE) {
 363                 const ProjectItem *parentclip = static_cast <const ProjectItem *>(item->parent());
 364                 const SubProjectItem *clickItem = static_cast <const SubProjectItem *>(item);
 365                 QPoint p = clickItem->zone();
 366                 QString data = parentclip->clipId();
 367                 data.append("/" + QString::number(p.x()));
 368                 data.append("/" + QString::number(p.y()));
 369                 ids.append(data);
 370             } else {
 371                 const ProjectItem *clip = static_cast <const ProjectItem *>(item);
 372                 ids.append(clip->clipId());
 373             }
 374         }
 375         if (ids.isEmpty()) return;
 376         QByteArray data;
 377         data.append(ids.join(";").toUtf8()); //doc.toString().toUtf8());
 378         mimeData->setData("kdenlive/producerslist", data);
 379         //mimeData->setText(ids.join(";")); //doc.toString());
 380         //mimeData->setImageData(image);
 381         drag->setMimeData(mimeData);
 382         drag->setPixmap(it->data(0, Qt::DecorationRole).value<QPixmap>());
 383         drag->setHotSpot(QPoint(0, 40));
 384         drag->exec(Qt::CopyAction | Qt::MoveAction, Qt::CopyAction);
 385     }
 386 }
 387
 388 // virtual
 389 void ProjectListView::dragLeaveEvent(QDragLeaveEvent *event)
 390 {
 391     // stop playing because we get a crash otherwise when fetching the thumbnails
 392     emit pauseMonitor();
 393     QTreeWidget::dragLeaveEvent(event);
 394 }
 395
 396 QStringList ProjectListView::mimeTypes() const
 397 {
 398     QStringList qstrList;
 399     qstrList << QTreeWidget::mimeTypes();
 400     // list of accepted mime types for drop
 401     qstrList.append("text/uri-list");
 402     qstrList.append("text/plain");
 403     qstrList.append("kdenlive/producerslist");
 404     qstrList.append("kdenlive/clip");
 405     return qstrList;
 406 }
 407
 408
 409 Qt::DropActions ProjectListView::supportedDropActions() const
 410 {
 411     // returns what actions are supported when dropping
 412     return Qt::MoveAction | Qt::CopyAction;
 413 }
 414
 415 #include "projectlistview.moc"