1 /***************************************************************************
2 * Copyright (C) 2010 by Till Theato (root@ttill.de) *
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 ***************************************************************************/
21 #include "monitorscene.h"
23 #include "onmonitoritems/rotoscoping/bpointitem.h"
24 #include "onmonitoritems/rotoscoping/splineitem.h"
25 #include "kdenlivesettings.h"
27 #include <QGraphicsView>
28 #include <QGraphicsPixmapItem>
29 #include <QGraphicsSceneMouseEvent>
32 MonitorScene::MonitorScene(Render *renderer, QObject* parent) :
33 QGraphicsScene(parent),
36 m_backgroundImage(QImage()),
41 setBackgroundBrush(QBrush(QColor(KdenliveSettings::window_background().name())));
43 QPen framepen(Qt::DotLine);
44 framepen.setColor(Qt::red);
46 m_frameBorder = new QGraphicsRectItem(QRectF(0, 0, m_renderer->frameRenderWidth(), m_renderer->renderHeight()));
47 m_frameBorder->setPen(framepen);
48 m_frameBorder->setZValue(-1);
49 m_frameBorder->setBrush(Qt::transparent);
50 m_frameBorder->setFlags(0);
51 addItem(m_frameBorder);
53 m_lastUpdate = QTime::currentTime();
54 m_background = new QGraphicsPixmapItem();
55 m_background->setZValue(-2);
56 m_background->setFlags(0);
57 m_background->setShapeMode(QGraphicsPixmapItem::BoundingRectShape);
58 m_background->setTransformationMode(Qt::FastTransformation);
59 QPixmap bg(m_renderer->frameRenderWidth(), m_renderer->renderHeight());
61 m_background->setPixmap(bg);
62 addItem(m_background);
64 connect(m_renderer, SIGNAL(frameUpdated(QImage)), this, SLOT(slotSetBackgroundImage(QImage)));
67 void MonitorScene::setUp()
69 if (views().count() > 0) {
70 m_view = views().at(0);
71 m_view->setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
77 void MonitorScene::resetProfile()
79 const QRectF border(0, 0, m_renderer->frameRenderWidth(), m_renderer->renderHeight());
80 m_frameBorder->setRect(border);
83 void MonitorScene::setEnabled(bool enabled)
88 void MonitorScene::slotUpdateBackground()
90 if (m_view && m_view->isVisible()) {
91 if (m_lastUpdate.msecsTo(QTime::currentTime()) > 50) {
92 m_background->setPixmap(QPixmap::fromImage(m_backgroundImage));
93 m_lastUpdate = QTime::currentTime();
98 void MonitorScene::slotSetBackgroundImage(const QImage &image)
100 if (m_view && m_view->isVisible()) {
101 m_backgroundImage = image;
102 slotUpdateBackground();
106 void MonitorScene::slotZoom(int value)
109 m_zoom = value / 100.0;
110 m_view->resetTransform();
111 m_view->scale(m_renderer->renderWidth() * m_zoom / m_renderer->frameRenderWidth(), m_zoom);
112 emit zoomChanged(value);
116 void MonitorScene::slotZoomFit()
119 int xzoom = 100 * m_view->viewport()->height() / m_renderer->renderHeight();
120 int yzoom = 100 * m_view->viewport()->width() / m_renderer->renderWidth();
121 slotZoom(qMin(xzoom, yzoom));
122 m_view->centerOn(m_frameBorder);
126 void MonitorScene::slotZoomOriginal()
130 m_view->centerOn(m_frameBorder);
133 void MonitorScene::slotZoomOut(int by)
135 slotZoom(qMax(0, (int)(m_zoom * 100 - by)));
138 void MonitorScene::slotZoomIn(int by)
140 slotZoom(qMin(300, (int)(m_zoom * 100 + by + 0.5)));
143 void MonitorScene::mousePressEvent(QGraphicsSceneMouseEvent* event)
145 QList <QGraphicsItem *> selected = selectedItems();
147 QGraphicsScene::mousePressEvent(event);
149 if (selected.count() < selectedItems().count()) {
150 // mouse click on item not in selection group
151 // -> select only this item
152 foreach (QGraphicsItem *item, selected) {
154 item->setSelected(false);
158 if (event->isAccepted() && selectedItems().count() > 1) {
159 // multiple items selected + mouse pressed on an item
160 selected = selectedItems();
161 foreach (QGraphicsItem *item, selected) {
162 if (qgraphicsitem_cast<BPointItem*>(item)) {
163 // works with rotoscoping only for now
165 m_lastPos = event->scenePos();
171 if (!event->isAccepted() && event->buttons() & Qt::LeftButton) {
172 if (event->modifiers() == Qt::ControlModifier)
173 m_view->setDragMode(QGraphicsView::ScrollHandDrag);
174 else if (event->modifiers() == Qt::ShiftModifier)
175 m_view->setDragMode(QGraphicsView::RubberBandDrag);
179 void MonitorScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
182 // we want to move multiple items
183 // rotoscoping only for now
184 QPointF diff = event->scenePos() - m_lastPos;
185 if (diff != QPointF(0, 0)) {
186 m_lastPos = event->scenePos();
187 QList <QGraphicsItem *> selected = selectedItems();
190 foreach (QGraphicsItem *item, selected) {
191 BPointItem *bpoint = qgraphicsitem_cast<BPointItem *>(item);
195 BPoint p = bpoint->getPoint();
203 QGraphicsItem *item = selected.at(first);
204 if (item->parentItem()) {
205 SplineItem *parent = qgraphicsitem_cast<SplineItem*>(item->parentItem());
207 parent->updateSpline(true);
212 QGraphicsScene::mouseMoveEvent(event);
216 void MonitorScene::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
219 QList <QGraphicsItem *> selected = selectedItems();
220 foreach (QGraphicsItem *item, selected) {
221 if (qgraphicsitem_cast<BPointItem*>(item) && item->parentItem()) {
222 SplineItem *parent = qgraphicsitem_cast<SplineItem*>(item->parentItem());
224 parent->updateSpline(false);
231 QGraphicsScene::mouseReleaseEvent(event);
232 m_view->setDragMode(QGraphicsView::NoDrag);
234 void MonitorScene::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event)
242 void MonitorScene::wheelEvent(QGraphicsSceneWheelEvent* event)
244 if (event->modifiers() == Qt::ControlModifier) {
245 if (event->delta() > 0)
250 QGraphicsScene::wheelEvent(event);
256 #include "monitorscene.moc"