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 "kdenlivesettings.h"
25 #include <QGraphicsView>
26 #include <QGraphicsPixmapItem>
27 #include <QGraphicsSceneMouseEvent>
30 MonitorScene::MonitorScene(Render *renderer, QObject* parent) :
31 QGraphicsScene(parent),
34 m_backgroundImage(QImage()),
38 setBackgroundBrush(QBrush(QColor(KdenliveSettings::window_background().name())));
40 QPen framepen(Qt::DotLine);
41 framepen.setColor(Qt::red);
43 m_frameBorder = new QGraphicsRectItem(QRectF(0, 0, m_renderer->frameRenderWidth(), m_renderer->renderHeight()));
44 m_frameBorder->setPen(framepen);
45 m_frameBorder->setZValue(-1);
46 m_frameBorder->setBrush(Qt::transparent);
47 m_frameBorder->setFlags(0);
48 addItem(m_frameBorder);
50 m_lastUpdate = QTime::currentTime();
51 m_background = new QGraphicsPixmapItem();
52 m_background->setZValue(-2);
53 m_background->setFlags(0);
54 m_background->setShapeMode(QGraphicsPixmapItem::BoundingRectShape);
55 m_background->setTransformationMode(Qt::FastTransformation);
56 QPixmap bg(m_renderer->frameRenderWidth(), m_renderer->renderHeight());
58 m_background->setPixmap(bg);
59 addItem(m_background);
61 connect(m_renderer, SIGNAL(frameUpdated(QImage)), this, SLOT(slotSetBackgroundImage(QImage)));
64 void MonitorScene::setUp()
66 if (views().count() > 0) {
67 m_view = views().at(0);
68 m_view->setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
74 void MonitorScene::resetProfile()
76 const QRectF border(0, 0, m_renderer->frameRenderWidth(), m_renderer->renderHeight());
77 m_frameBorder->setRect(border);
80 void MonitorScene::setEnabled(bool enabled)
85 void MonitorScene::slotUpdateBackground()
87 if (m_view && m_view->isVisible()) {
88 if (m_lastUpdate.msecsTo(QTime::currentTime()) > 50) {
89 m_background->setPixmap(QPixmap::fromImage(m_backgroundImage));
90 m_lastUpdate = QTime::currentTime();
95 void MonitorScene::slotSetBackgroundImage(const QImage &image)
97 if (m_view && m_view->isVisible()) {
98 m_backgroundImage = image;
99 slotUpdateBackground();
103 void MonitorScene::slotZoom(int value)
106 m_zoom = value / 100.0;
107 m_view->resetTransform();
108 m_view->scale(m_renderer->renderWidth() * m_zoom / m_renderer->frameRenderWidth(), m_zoom);
109 emit zoomChanged(value);
113 void MonitorScene::slotZoomFit()
116 int xzoom = 100 * m_view->viewport()->height() / m_renderer->renderHeight();
117 int yzoom = 100 * m_view->viewport()->width() / m_renderer->renderWidth();
118 slotZoom(qMin(xzoom, yzoom));
119 m_view->centerOn(m_frameBorder);
123 void MonitorScene::slotZoomOriginal()
127 m_view->centerOn(m_frameBorder);
130 void MonitorScene::slotZoomOut(int by)
132 slotZoom(qMax(0, (int)(m_zoom * 100 - by)));
135 void MonitorScene::slotZoomIn(int by)
137 slotZoom(qMin(300, (int)(m_zoom * 100 + by + 0.5)));
140 void MonitorScene::mousePressEvent(QGraphicsSceneMouseEvent* event)
142 QGraphicsScene::mousePressEvent(event);
144 if (!event->isAccepted() && event->buttons() & Qt::LeftButton && event->modifiers() == Qt::ControlModifier)
145 m_view->setDragMode(QGraphicsView::ScrollHandDrag);
148 void MonitorScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
150 QGraphicsScene::mouseMoveEvent(event);
153 void MonitorScene::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
155 QGraphicsScene::mouseReleaseEvent(event);
156 m_view->setDragMode(QGraphicsView::NoDrag);
158 void MonitorScene::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event)
166 void MonitorScene::wheelEvent(QGraphicsSceneWheelEvent* event)
168 if (event->modifiers() == Qt::ControlModifier) {
169 if (event->delta() > 0)
174 QGraphicsScene::wheelEvent(event);
180 #include "monitorscene.moc"