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;border:0px} \
  49     QTreeView::branch:has-siblings:adjoins-item {border-image: none;border:0px}      \
  50     QTreeView::branch:!has-children:!has-siblings:adjoins-item {border-image: none;border:0px} \
  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(4);
  59     QStringList headers;
  60     headers << i18n("Clip") << i18n("Description") << i18n("Rating") << i18n("Date");
  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     if (!KdenliveSettings::showdatecolumn()) hideColumn(3);
  79 }
  80
  81 ProjectListView::~ProjectListView()
  82 {
  83 }
  84
  85 void ProjectListView::processLayout()
  86 {
  87     executeDelayedItemsLayout();
  88 }
  89
  90 void ProjectListView::configureColumns(const QPoint& pos)
  91 {
  92     KMenu popup(this);
  93     popup.addTitle(i18nc("@title:menu", "Columns"));
  94
  95     QHeaderView* headerView = header();
  96     for (int i = 1; i < headerView->count(); ++i) {
  97         const QString text = model()->headerData(i, Qt::Horizontal).toString();
  98         QAction* action = popup.addAction(text);
  99         action->setCheckable(true);
 100         action->setChecked(!headerView->isSectionHidden(i));
 101         action->setData(i);
 102     }
 103
 104     QAction* activatedAction = popup.exec(header()->mapToGlobal(pos));
 105     if (activatedAction != 0) {
 106         const bool show = activatedAction->isChecked();
 107
 108         // remember the changed column visibility in the settings
 109         const int columnIndex = activatedAction->data().toInt();
 110         switch (columnIndex) {
 111         case 1:
 112             KdenliveSettings::setShowdescriptioncolumn(show);
 113             break;
 114         case 2:
 115             KdenliveSettings::setShowratingcolumn(show);
 116             break;
 117         case 3:
 118             KdenliveSettings::setShowdatecolumn(show);
 119             break;
 120         default:
 121             break;
 122         }
 123
 124         // apply the changed column visibility
 125         if (show) {
 126             showColumn(columnIndex);
 127         } else {
 128             hideColumn(columnIndex);
 129         }
 130     }
 131 }
 132
 133 // virtual
 134 void ProjectListView::contextMenuEvent(QContextMenuEvent * event)
 135 {
 136     emit requestMenu(event->globalPos(), itemAt(event->pos()));
 137 }
 138
 139 void ProjectListView::slotCollapsed(QTreeWidgetItem *item)
 140 {
 141     if (item->type() == PROJECTFOLDERTYPE) {
 142         blockSignals(true);
 143         static_cast <FolderProjectItem *>(item)->switchIcon();
 144         blockSignals(false);
 145     }
 146 }
 147
 148 void ProjectListView::slotExpanded(QTreeWidgetItem *item)
 149 {
 150     if (item->type() == PROJECTFOLDERTYPE) {
 151         blockSignals(true);
 152         static_cast <FolderProjectItem *>(item)->switchIcon();
 153         blockSignals(false);
 154     }
 155 }
 156
 157 bool ProjectListView::eventFilter(QObject *obj, QEvent *event)
 158 {
 159     if (event->type() == QEvent::KeyPress || event->type() == QEvent::ShortcutOverride) {
 160         QKeyEvent* ke = (QKeyEvent*) event;
 161         if (ke->key() == Qt::Key_Plus) {
 162             if (currentItem()) currentItem()->setExpanded(true);
 163             event->accept();
 164             return true;
 165         } else if (ke->key() == Qt::Key_Minus) {
 166             if (currentItem()) currentItem()->setExpanded(false);
 167             event->accept();
 168             return true;
 169         } else {
 170             return false;
 171         }
 172     } else {
 173         // pass the event on to the parent class
 174         return QTreeWidget::eventFilter(obj, event);
 175     }
 176 }
 177
 178 // virtual
 179 void ProjectListView::mouseDoubleClickEvent(QMouseEvent * event)
 180 {
 181     QTreeWidgetItem *it = itemAt(event->pos());
 182     if (!it) {
 183         emit addClip();
 184         return;
 185     }
 186     ProjectItem *item;
 187     if (it->type() == PROJECTFOLDERTYPE) {
 188         if ((columnAt(event->pos().x()) == 0)) {
 189             QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
 190             int offset = pix.width() + indentation();
 191             if (event->pos().x() < offset) {
 192                 it->setExpanded(!it->isExpanded());
 193                 event->accept();
 194             } else QTreeWidget::mouseDoubleClickEvent(event);
 195         }
 196         return;
 197     }
 198     if (it->type() == PROJECTSUBCLIPTYPE) {
 199         // subitem
 200         if ((columnAt(event->pos().x()) == 1)) {
 201             QTreeWidget::mouseDoubleClickEvent(event);
 202             return;
 203         }
 204         item = static_cast <ProjectItem *>(it->parent());
 205     } else item = static_cast <ProjectItem *>(it);
 206
 207     if (!(item->flags() & Qt::ItemIsDragEnabled)) return;
 208
 209     int column = columnAt(event->pos().x());
 210     if (column == 0 && (item->clipType() == SLIDESHOW || item->clipType() == TEXT || item->clipType() == COLOR || it->childCount() > 0)) {
 211         QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
 212         int offset = pix.width() + indentation();
 213         if (item->parent()) offset += indentation();
 214         if (it->childCount() > 0) {
 215             if (offset > event->pos().x()) {
 216                 it->setExpanded(!it->isExpanded());
 217                 event->accept();
 218                 return;
 219             }
 220         } else if (pix.isNull() || offset < event->pos().x()) {
 221             QTreeWidget::mouseDoubleClickEvent(event);
 222             return;
 223         }
 224     }
 225     if ((column == 1) && it->type() != PROJECTSUBCLIPTYPE) {
 226         QTreeWidget::mouseDoubleClickEvent(event);
 227         return;
 228     }
 229     emit showProperties(item->referencedClip());
 230 }
 231
 232
 233 // virtual
 234 void ProjectListView::dropEvent(QDropEvent *event)
 235 {
 236     FolderProjectItem *item = NULL;
 237     QTreeWidgetItem *it = itemAt(event->pos());
 238     while (it && it->type() != PROJECTFOLDERTYPE) {
 239         it = it->parent();
 240     }
 241     if (it) item = static_cast <FolderProjectItem *>(it);
 242     if (event->mimeData()->hasUrls()) {
 243         QString groupName;
 244         QString groupId;
 245         if (item) {
 246             groupName = item->groupName();
 247             groupId = item->clipId();
 248         }
 249         emit addClip(event->mimeData()->urls(), groupName, groupId);
 250         event->setDropAction(Qt::CopyAction);
 251         event->accept();
 252         QTreeWidget::dropEvent(event);
 253         return;
 254     } else if (event->mimeData()->hasFormat("kdenlive/producerslist")) {
 255         if (item) {
 256             //emit addClip(event->mimeData->text());
 257             const QList <QTreeWidgetItem *> list = selectedItems();
 258             ProjectItem *clone;
 259             QString parentId = item->clipId();
 260             foreach(QTreeWidgetItem *it, list) {
 261                 // TODO allow dragging of folders ?
 262                 if (it->type() == PROJECTCLIPTYPE) {
 263                     if (it->parent()) clone = (ProjectItem*) it->parent()->takeChild(it->parent()->indexOfChild(it));
 264                     else clone = (ProjectItem*) takeTopLevelItem(indexOfTopLevelItem(it));
 265                     if (clone) {
 266                         item->addChild(clone);
 267                         QMap <QString, QString> props;
 268                         props.insert("groupname", item->groupName());
 269                         props.insert("groupid", parentId);
 270                         clone->setProperties(props);
 271                     }
 272                 } else item = NULL;
 273             }
 274         } else {
 275             // item dropped in empty zone, move it to top level
 276             const QList <QTreeWidgetItem *> list = selectedItems();
 277             ProjectItem *clone;
 278             foreach(QTreeWidgetItem *it, list) {
 279                 QTreeWidgetItem *parent = it->parent();
 280                 if (parent/* && ((ProjectItem *) it)->clipId() < 10000*/)  {
 281                     kDebug() << "++ item parent: " << parent->text(1);
 282                     clone = static_cast <ProjectItem*>(parent->takeChild(parent->indexOfChild(it)));
 283                     if (clone) {
 284                         addTopLevelItem(clone);
 285                         clone->clearProperty("groupname");
 286                         clone->clearProperty("groupid");
 287                     }
 288                 }
 289             }
 290         }
 291         emit projectModified();
 292     } else if (event->mimeData()->hasFormat("kdenlive/clip")) {
 293         QStringList list = QString(event->mimeData()->data("kdenlive/clip")).split(';');
 294         emit addClipCut(list.at(0), list.at(1).toInt(), list.at(2).toInt());
 295     }
 296     event->acceptProposedAction();
 297     QTreeWidget::dropEvent(event);
 298 }
 299
 300 // virtual
 301 void ProjectListView::mousePressEvent(QMouseEvent *event)
 302 {
 303     if (event->button() == Qt::LeftButton) {
 304         m_DragStartPosition = event->pos();
 305         m_dragStarted = true;
 306         /*QTreeWidgetItem *underMouse = itemAt(event->pos());
 307         if (underMouse && underMouse->isSelected()) emit focusMonitor();*/
 308     }
 309     QTreeWidget::mousePressEvent(event);
 310 }
 311
 312 // virtual
 313 void ProjectListView::mouseReleaseEvent(QMouseEvent *event)
 314 {
 315     QTreeWidget::mouseReleaseEvent(event);
 316     QTreeWidgetItem *underMouse = itemAt(event->pos());
 317     if (underMouse) emit focusMonitor();
 318 }
 319
 320 // virtual
 321 void ProjectListView::mouseMoveEvent(QMouseEvent *event)
 322 {
 323     //kDebug() << "// DRAG STARTED, MOUSE MOVED: ";
 324     if (!m_dragStarted) return;
 325
 326     if ((event->pos() - m_DragStartPosition).manhattanLength()
 327             < QApplication::startDragDistance())
 328         return;
 329
 330     QTreeWidgetItem *it = itemAt(m_DragStartPosition);
 331     if (!it) return;
 332     if (it->type() == PROJECTSUBCLIPTYPE) {
 333         // subitem
 334         SubProjectItem *clickItem = static_cast <SubProjectItem *>(it);
 335         if (clickItem && (clickItem->flags() & Qt::ItemIsDragEnabled)) {
 336             ProjectItem *clip = static_cast <ProjectItem *>(it->parent());
 337             QDrag *drag = new QDrag(this);
 338             QMimeData *mimeData = new QMimeData;
 339
 340             QStringList list;
 341             list.append(clip->clipId());
 342             QPoint p = clickItem->zone();
 343             list.append(QString::number(p.x()));
 344             list.append(QString::number(p.y()));
 345             QByteArray data;
 346             data.append(list.join(";").toUtf8());
 347             mimeData->setData("kdenlive/clip", data);
 348             drag->setMimeData(mimeData);
 349             drag->setPixmap(clickItem->data(0, Qt::DecorationRole).value<QPixmap>());
 350             drag->setHotSpot(QPoint(0, 50));
 351             drag->exec();
 352         }
 353     } else {
 354         if (it && (it->flags() & Qt::ItemIsDragEnabled)) {
 355             QDrag *drag = new QDrag(this);
 356             QMimeData *mimeData = new QMimeData;
 357             const QList <QTreeWidgetItem *> list = selectedItems();
 358             QStringList ids;
 359             foreach(const QTreeWidgetItem *item, list) {
 360                 if (item->type() == PROJECTFOLDERTYPE) {
 361                     const int children = item->childCount();
 362                     for (int i = 0; i < children; i++) {
 363                         ids.append(static_cast <ProjectItem *>(item->child(i))->clipId());
 364                     }
 365                 } else {
 366                     const ProjectItem *clip = static_cast <const ProjectItem *>(item);
 367                     ids.append(clip->clipId());
 368                 }
 369             }
 370             if (ids.isEmpty()) return;
 371             QByteArray data;
 372             data.append(ids.join(";").toUtf8()); //doc.toString().toUtf8());
 373             mimeData->setData("kdenlive/producerslist", data);
 374             //mimeData->setText(ids.join(";")); //doc.toString());
 375             //mimeData->setImageData(image);
 376             drag->setMimeData(mimeData);
 377             drag->setPixmap(it->data(0, Qt::DecorationRole).value<QPixmap>());
 378             drag->setHotSpot(QPoint(0, 50));
 379             drag->exec();
 380         }
 381         //event->accept();
 382     }
 383 }
 384
 385 // virtual
 386 void ProjectListView::dragLeaveEvent(QDragLeaveEvent *event)
 387 {
 388     // stop playing because we get a crash otherwise when fetching the thumbnails
 389     emit pauseMonitor();
 390     QTreeWidget::dragLeaveEvent(event);
 391 }
 392
 393 QStringList ProjectListView::mimeTypes() const
 394 {
 395     QStringList qstrList;
 396     qstrList << QTreeWidget::mimeTypes();
 397     // list of accepted mime types for drop
 398     qstrList.append("text/uri-list");
 399     qstrList.append("text/plain");
 400     qstrList.append("kdenlive/producerslist");
 401     qstrList.append("kdenlive/clip");
 402     return qstrList;
 403 }
 404
 405
 406 Qt::DropActions ProjectListView::supportedDropActions() const
 407 {
 408     // returns what actions are supported when dropping
 409     return Qt::MoveAction | Qt::CopyAction;
 410 }
 411
 412 #include "projectlistview.moc"