1 /***************************************************************************
2 * Copyright (C) 2007 by Jean-Baptiste Mardelle (jb@kdenlive.org) *
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. *
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. *
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 ***************************************************************************/
20 #include <QMouseEvent>
21 #include <QStylePainter>
22 #include <QGraphicsItem>
23 #include <QDomDocument>
30 #include "customtrackview.h"
32 #include "definitions.h"
33 #include "moveclipcommand.h"
34 #include "resizeclipcommand.h"
35 #include "addtimelineclipcommand.h"
37 CustomTrackView::CustomTrackView(KUndoStack *commandStack, QGraphicsScene * scene, QWidget *parent)
38 : QGraphicsView(scene, parent), m_commandStack(commandStack), m_tracksCount(0), m_cursorPos(0), m_dropItem(NULL), m_cursorLine(NULL), m_operationMode(NONE), m_startPos(QPointF()), m_dragItem(NULL), m_visualTip(NULL), m_moveOpMode(NONE), m_animation(NULL)
40 setMouseTracking(true);
42 m_animationTimer = new QTimeLine(800);
43 m_animationTimer->setFrameRange(0, 5);
44 m_animationTimer->setUpdateInterval(100);
45 m_animationTimer->setLoopCount(0);
46 m_tipColor = QColor(230, 50, 0, 150);
49 void CustomTrackView::initView()
51 m_cursorLine = scene()->addLine(0, 0, 0, height());
52 m_cursorLine->setZValue(1000);
56 void CustomTrackView::resizeEvent ( QResizeEvent * event )
58 if (m_cursorLine) m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), height());
62 void CustomTrackView::wheelEvent ( QWheelEvent * e )
64 if (e->modifiers() == Qt::ControlModifier) {
65 if (e->delta() > 0) emit zoomIn();
69 if (e->delta() > 0) horizontalScrollBar()->setValue (horizontalScrollBar()->value() + horizontalScrollBar()->singleStep ());
70 else horizontalScrollBar()->setValue (horizontalScrollBar()->value() - horizontalScrollBar()->singleStep ());
76 void CustomTrackView::mouseMoveEvent ( QMouseEvent * event )
79 /*if (event->modifiers() == Qt::ControlModifier)
80 setDragMode(QGraphicsView::ScrollHandDrag);
81 else if (event->modifiers() == Qt::ShiftModifier)
82 setDragMode(QGraphicsView::RubberBandDrag);
85 if (event->button() == Qt::LeftButton) {
86 // a button was pressed, delete visual tips
87 if (m_animation) delete m_animation;
89 if (m_visualTip) delete m_visualTip;
91 QGraphicsView::mouseMoveEvent(event);
95 QList<QGraphicsItem *> itemList = items( event->pos());
97 QGraphicsItem *item = NULL;
98 for (int i = 0; i < itemList.count(); i++) {
99 if (itemList.at(i)->type() == 70000) {
100 item = itemList.at(i);
105 ClipItem *clip = (ClipItem*) item;
106 double size = mapToScene(QPoint(8, 0)).x();
107 OPERATIONTYPE opMode = clip->operationMode(mapToScene(event->pos()));
108 if (opMode == m_moveOpMode) {
109 QGraphicsView::mouseMoveEvent(event);
114 if (m_animation) delete m_animation;
120 m_moveOpMode = opMode;
121 if (opMode == MOVE) {
122 setCursor(Qt::OpenHandCursor);
124 else if (opMode == RESIZESTART) {
125 kDebug()<<"******** RESIZE CLIP START; WIDTH: "<<size;
126 if (m_visualTip == NULL) {
127 m_visualTip = new QGraphicsRectItem(clip->rect().x(), clip->rect().y(), size, clip->rect().height());
128 ((QGraphicsRectItem*) m_visualTip)->setBrush(m_tipColor);
129 ((QGraphicsRectItem*) m_visualTip)->setPen(QPen(Qt::transparent));
130 m_visualTip->setZValue (100);
131 m_animation = new QGraphicsItemAnimation;
132 m_animation->setItem(m_visualTip);
133 m_animation->setTimeLine(m_animationTimer);
134 m_visualTip->setPos(0, 0);
136 m_animation->setScaleAt(.5, scale, 1);
137 m_animation->setPosAt(.5, QPointF(clip->rect().x() - clip->rect().x() * scale, 0));
139 m_animation->setScaleAt(1, scale, 1);
140 m_animation->setPosAt(1, QPointF(clip->rect().x() - clip->rect().x() * scale, 0));
141 scene()->addItem(m_visualTip);
142 m_animationTimer->start();
144 setCursor(Qt::SizeHorCursor);
146 else if (opMode == RESIZEEND) {
147 if (m_visualTip == NULL) {
148 m_visualTip = new QGraphicsRectItem(clip->rect().x() + clip->rect().width() - size, clip->rect().y(), size, clip->rect().height());
149 ((QGraphicsRectItem*) m_visualTip)->setBrush(m_tipColor);
150 ((QGraphicsRectItem*) m_visualTip)->setPen(QPen(Qt::transparent));
151 m_visualTip->setZValue (100);
152 m_animation = new QGraphicsItemAnimation;
153 m_animation->setItem(m_visualTip);
154 m_animation->setTimeLine(m_animationTimer);
155 m_visualTip->setPos(0, 0);
157 m_animation->setScaleAt(.5, scale, 1);
158 m_animation->setPosAt(.5, QPointF(clip->rect().x() - clip->rect().x() * scale - clip->rect().width(), 0));
160 m_animation->setScaleAt(1, scale, 1);
161 m_animation->setPosAt(1, QPointF(clip->rect().x() - clip->rect().x() * scale, 0));
162 scene()->addItem(m_visualTip);
163 m_animationTimer->start();
165 setCursor(Qt::SizeHorCursor);
167 else if (opMode == FADEIN) {
168 if (m_visualTip == NULL) {
169 m_visualTip = new QGraphicsEllipseItem(clip->rect().x() - size, clip->rect().y() - 8, size * 2, 16);
170 ((QGraphicsEllipseItem*) m_visualTip)->setBrush(m_tipColor);
171 ((QGraphicsEllipseItem*) m_visualTip)->setPen(QPen(Qt::transparent));
172 m_visualTip->setZValue (100);
173 m_animation = new QGraphicsItemAnimation;
174 m_animation->setItem(m_visualTip);
175 m_animation->setTimeLine(m_animationTimer);
176 m_visualTip->setPos(0, 0);
178 m_animation->setScaleAt(.5, scale, scale);
179 m_animation->setPosAt(.5, QPointF(clip->rect().x() - clip->rect().x() * scale, clip->rect().y() - clip->rect().y() * scale));
181 m_animation->setScaleAt(1, scale, scale);
182 m_animation->setPosAt(1, QPointF(clip->rect().x() - clip->rect().x() * scale, clip->rect().y() - clip->rect().y() * scale));
183 scene()->addItem(m_visualTip);
184 m_animationTimer->start();
186 setCursor(Qt::PointingHandCursor);
188 else if (opMode == FADEOUT) {
189 if (m_visualTip == NULL) {
190 m_visualTip = new QGraphicsEllipseItem(clip->rect().x() + clip->rect().width() - size, clip->rect().y() - 8, size*2, 16);
191 ((QGraphicsEllipseItem*) m_visualTip)->setBrush(m_tipColor);
192 ((QGraphicsEllipseItem*) m_visualTip)->setPen(QPen(Qt::transparent));
193 m_visualTip->setZValue (100);
194 m_animation = new QGraphicsItemAnimation;
195 m_animation->setItem(m_visualTip);
196 m_animation->setTimeLine(m_animationTimer);
197 m_visualTip->setPos(0, 0);
199 m_animation->setScaleAt(.5, scale, scale);
200 m_animation->setPosAt(.5, QPointF(clip->rect().x() - clip->rect().x() * scale - clip->rect().width(), clip->rect().y() - clip->rect().y() * scale));
202 m_animation->setScaleAt(1, scale, scale);
203 m_animation->setPosAt(1, QPointF(clip->rect().x() - clip->rect().x() * scale, clip->rect().y() - clip->rect().y() * scale));
204 scene()->addItem(m_visualTip);
205 m_animationTimer->start();
207 setCursor(Qt::PointingHandCursor);
213 if (m_animation) delete m_animation;
218 setCursor(Qt::ArrowCursor);
221 QGraphicsView::mouseMoveEvent(event);
225 void CustomTrackView::mousePressEvent ( QMouseEvent * event )
227 int pos = event->x();
228 if (event->modifiers() == Qt::ControlModifier)
229 setDragMode(QGraphicsView::ScrollHandDrag);
230 else if (event->modifiers() == Qt::ShiftModifier)
231 setDragMode(QGraphicsView::RubberBandDrag);
233 QGraphicsItem * item = itemAt(event->pos());
234 if (item && item->type() != 70000) item = item->parentItem();
235 if (item && item->type() == 70000) {
236 m_dragItem = (ClipItem *) item;
237 m_operationMode = m_dragItem->operationMode(item->mapFromScene(mapToScene(event->pos())));
238 if (m_operationMode == MOVE || m_operationMode == RESIZESTART) m_startPos = QPointF(m_dragItem->rect().x(), m_dragItem->rect().y());
239 else if (m_operationMode == RESIZEEND) m_startPos = QPointF(m_dragItem->rect().x() + m_dragItem->rect().width(), m_dragItem->rect().y());
241 kDebug()<<"//////// ITEM CLICKED: "<<m_startPos;
242 /*while (item->parentItem())
243 item = item->parentItem();
245 int cursorPos = event->x();
246 QRectF itemRect = item->sceneBoundingRect();
247 int itemStart = mapFromScene(itemRect.x(), 0).x();
248 int itemEnd = mapFromScene(itemRect.x() + itemRect.width(), 0).x();
249 if (abs(itemStart - cursorPos) < 6)
250 ((ClipItem *) item )->setResizeMode(1);
251 else if (abs(itemEnd - cursorPos) < 6)
252 ((ClipItem *) item )->setResizeMode(2);
255 kDebug()<<"//////// NO ITEM FOUND ON CLICK";
257 setCursor(Qt::ArrowCursor);
258 setCursorPos((int) mapToScene(event->x(), 0).x());
259 emit cursorMoved(cursorPos());
263 QGraphicsView::mousePressEvent(event);
266 void CustomTrackView::dragEnterEvent ( QDragEnterEvent * event )
268 if (event->mimeData()->hasText()) {
269 QString clip = event->mimeData()->text();
270 addItem(clip, event->pos());
271 event->acceptProposedAction();
276 void CustomTrackView::addItem(QString producer, QPoint pos)
279 doc.setContent(producer);
280 QDomElement elem = doc.documentElement();
281 int in = elem.attribute("in", 0).toInt();
282 int out = elem.attribute("duration", 0).toInt();
283 if (out == 0) out = elem.attribute("out", 0).toInt() - in;
284 kDebug()<<"ADDING CLIP: "<<producer<<", OUT: "<<out<<", POS: "<<mapToScene(pos);
285 int trackTop = ((int) mapToScene(pos).y()/50) * 50 + 1;
286 QString clipName = elem.attribute("name");
287 if (clipName.isEmpty()) clipName = KUrl(elem.attribute("resource")).fileName();
288 m_dropItem = new ClipItem(elem.attribute("type").toInt(), clipName, elem.attribute("id").toInt(), out, QRectF(mapToScene(pos).x(), trackTop, out, 49));
289 scene()->addItem(m_dropItem);
293 void CustomTrackView::dragMoveEvent(QDragMoveEvent * event) {
294 event->setDropAction(Qt::IgnoreAction);
296 int trackTop = ((int) mapToScene(event->pos()).y()/50) * 50 + 1;
297 m_dropItem->moveTo(mapToScene(event->pos()).x(), trackTop - m_dropItem->rect().y());
300 event->setDropAction(Qt::MoveAction);
301 if (event->mimeData()->hasText()) {
302 event->acceptProposedAction();
307 void CustomTrackView::dragLeaveEvent ( QDragLeaveEvent * event ) {
314 void CustomTrackView::dropEvent ( QDropEvent * event ) {
316 AddTimelineClipCommand *command = new AddTimelineClipCommand(this, m_dropItem->clipType(), m_dropItem->clipName(), m_dropItem->clipProducer(), m_dropItem->maxDuration(), m_dropItem->rect(), false);
317 m_commandStack->push(command);
323 QStringList CustomTrackView::mimeTypes () const
325 QStringList qstrList;
326 // list of accepted mime types for drop
327 qstrList.append("text/plain");
331 Qt::DropActions CustomTrackView::supportedDropActions () const
333 // returns what actions are supported when dropping
334 return Qt::MoveAction;
337 void CustomTrackView::addTrack ()
342 void CustomTrackView::removeTrack ()
347 void CustomTrackView::setCursorPos(int pos)
350 m_cursorLine->setPos(pos, 0);
353 int CustomTrackView::cursorPos()
358 void CustomTrackView::mouseReleaseEvent ( QMouseEvent * event )
360 QGraphicsView::mouseReleaseEvent(event);
361 setDragMode(QGraphicsView::NoDrag);
362 if (m_dragItem == NULL) return;
363 //kDebug()<<"/// MOVING CLIP: "<<m_startPos<<", END: "<<QPoint(m_dragItem->rect().x(),m_dragItem->rect().y());
364 if (m_operationMode == MOVE) {
366 MoveClipCommand *command = new MoveClipCommand(this, m_startPos, QPointF(m_dragItem->rect().x(), m_dragItem->rect().y()), false);
367 m_commandStack->push(command);
369 else if (m_operationMode == RESIZESTART) {
371 ResizeClipCommand *command = new ResizeClipCommand(this, m_startPos, QPointF(m_dragItem->rect().x(), m_dragItem->rect().y()), true, false);
372 m_commandStack->push(command);
374 else if (m_operationMode == RESIZEEND) {
376 ResizeClipCommand *command = new ResizeClipCommand(this, m_startPos, QPointF(m_dragItem->rect().x() + m_dragItem->rect().width(), m_dragItem->rect().y()), false, false);
377 m_commandStack->push(command);
381 void CustomTrackView::deleteClip ( const QRectF &rect )
383 ClipItem *item = (ClipItem *) scene()->itemAt(rect.x() + 1, rect.y() + 1);
385 kDebug()<<"---------------- ERROR, CANNOT find clip to move at: "<<rect.x();
391 void CustomTrackView::addClip ( int clipType, QString clipName, int clipProducer, int maxDuration, const QRectF &rect )
393 ClipItem *item = new ClipItem(clipType, clipName, clipProducer, maxDuration, rect);
394 scene()->addItem(item);
397 void CustomTrackView::moveClip ( const QPointF &startPos, const QPointF &endPos )
399 ClipItem *item = (ClipItem *) scene()->itemAt(startPos.x() + 1, startPos.y() + 1);
401 kDebug()<<"---------------- ERROR, CANNOT find clip to move at: "<<startPos;
404 item->setRect(QRectF(endPos.x(), endPos.y(), item->rect().width(), item->rect().height()));
405 QList <QGraphicsItem *> childrenList = item->children();
406 for (int i = 0; i < childrenList.size(); ++i) {
407 childrenList.at(i)->moveBy(endPos.x() - startPos.x() , endPos.y() - startPos.y());
411 void CustomTrackView::resizeClip ( const QPointF &startPos, const QPointF &endPos, bool resizeClipStart )
414 if (resizeClipStart) offset = 1;
416 ClipItem *item = (ClipItem *) scene()->itemAt(startPos.x() + offset, startPos.y() + 1);
418 kDebug()<<"---------------- ERROR, CANNOT find clip to resize at: "<<startPos;
421 qreal diff = endPos.x() - startPos.x();
422 if (resizeClipStart) {
423 item->setRect(QRectF(endPos.x(), endPos.y(), item->rect().width() - diff, item->rect().height()));
424 QList <QGraphicsItem *> childrenList = item->children();
425 for (int i = 0; i < childrenList.size(); ++i) {
426 childrenList.at(i)->moveBy(diff / 2 , endPos.y() - startPos.y());
430 //kdDebug()<<"/////// RESIZE CLIP END: "<<item->rect().x()<<", "<<item->rect().width()<<", "<<startPos<<", "<<endPos;
431 item->setRect(QRectF(item->rect().x(), item->rect().y(), endPos.x() - item->rect().x(), item->rect().height()));
432 QList <QGraphicsItem *> childrenList = item->children();
433 for (int i = 0; i < childrenList.size(); ++i) {
434 childrenList.at(i)->moveBy(-diff/2, endPos.y() - startPos.y());
440 void CustomTrackView::drawBackground ( QPainter * painter, const QRectF & rect )
442 //kDebug()<<"///// DRAWING BG: "<<rect.x()<<", width: "<<rect.width();
443 painter->setPen(QColor(150, 150, 150, 255));
444 painter->drawLine(rect.x(), 0, rect.x() + rect.width(), 0);
445 for (uint i = 0; i < m_tracksCount;i++)
447 painter->drawLine(rect.x(), 50 * (i+1), rect.x() + rect.width(), 50 * (i+1));
448 painter->drawText(QRectF(10, 50 * i, 100, 50 * i + 49), Qt::AlignLeft, i18n(" Track ") + QString::number(i));
452 void CustomTrackView::drawForeground ( QPainter * painter, const QRectF & rect )
454 //kDebug()<<"///// DRAWING FB: "<<rect.x()<<", width: "<<rect.width();
455 painter->fillRect(rect, QColor(50, rand() % 250,50,100));
456 painter->drawLine(m_cursorPos, rect.y(), m_cursorPos, rect.y() + rect.height());
459 #include "customtrackview.moc"