git.sesse.net Git - kdenlive/blob - src/monitorscene.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Till Theato (root@ttill.de)                     *
   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 "monitorscene.h"
  22 #include "renderer.h"
  23 #include "kdenlivesettings.h"
  24
  25 #include <QGraphicsView>
  26 #include <QGraphicsPixmapItem>
  27 #include <QtCore>
  28
  29 MonitorScene::MonitorScene(Render *renderer, QObject* parent) :
  30         QGraphicsScene(parent),
  31         m_renderer(renderer)
  32 {
  33 }
  34
  35 void MonitorScene::setUp()
  36 {
  37     setBackgroundBrush(QBrush(QColor(KdenliveSettings::window_background().name())));
  38
  39     QPen framepen(Qt::DotLine);
  40     framepen.setColor(Qt::red);
  41
  42     m_frameBorder = new QGraphicsRectItem(QRectF(0, 0, m_renderer->renderWidth(), m_renderer->renderHeight()));
  43     m_frameBorder->setPen(framepen);
  44     m_frameBorder->setZValue(-9);
  45     m_frameBorder->setBrush(Qt::transparent);
  46     m_frameBorder->setFlags(0);
  47     addItem(m_frameBorder);
  48
  49     m_lastUpdate.start();
  50     m_background = new QGraphicsPixmapItem();
  51     m_background->setZValue(-10);
  52     m_background->setFlags(0);
  53     QPixmap bg(m_renderer->renderWidth(), m_renderer->renderHeight());
  54     bg.fill();
  55     m_background->setPixmap(bg);
  56     addItem(m_background);
  57
  58     connect(m_renderer, SIGNAL(rendererPosition(int)), this, SLOT(slotUpdateBackground()));
  59     connect(m_renderer, SIGNAL(frameUpdated(int)), this, SLOT(slotUpdateBackground()));
  60     slotUpdateBackground();
  61 }
  62
  63 void MonitorScene::slotUpdateBackground()
  64 {
  65     if (views().count() > 0 && views().at(0)->isVisible()) {
  66         if (m_lastUpdate.elapsed() > 200) {
  67             m_background->setPixmap(QPixmap::fromImage(m_renderer->extractFrame(m_renderer->seekFramePosition())));
  68             views().at(0)->fitInView(m_frameBorder, Qt::KeepAspectRatio);
  69             views().at(0)->centerOn(m_frameBorder);
  70             m_lastUpdate.start();
  71         }
  72     }
  73 }
  74
  75 void MonitorScene::mousePressEvent(QGraphicsSceneMouseEvent* event)
  76 {
  77     QGraphicsScene::mousePressEvent(event);
  78 }
  79
  80
  81 void MonitorScene::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
  82 {
  83     QGraphicsScene::mouseReleaseEvent(event);
  84     emit actionFinished();
  85 }
  86
  87 #include "monitorscene.moc"