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

   1 /***************************************************************************
   2  *   Copyright (C) 2011 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 "abstractmonitor.h"
  22 #include "kdenlivesettings.h"
  23 #include "monitormanager.h"
  24
  25 #include <KDebug>
  26
  27 #include <QPaintEvent>
  28 #include <QDesktopWidget>
  29 #include <QVBoxLayout>
  30
  31
  32 AbstractMonitor::AbstractMonitor(Kdenlive::MONITORID id, MonitorManager *manager, QWidget *parent):
  33     QWidget(parent),
  34     videoSurface(NULL),
  35     m_id(id),
  36     m_monitorManager(manager)
  37 {
  38     videoBox = new VideoContainer(this);
  39 }
  40
  41
  42 AbstractMonitor::~AbstractMonitor()
  43 {
  44     if (videoSurface)
  45         delete videoSurface;
  46 }
  47
  48 void AbstractMonitor::createVideoSurface()
  49 {
  50     QVBoxLayout *lay = new QVBoxLayout;
  51     lay->setContentsMargins(0, 0, 0, 0);
  52     videoSurface = new VideoSurface;
  53     lay->addWidget(videoSurface);
  54     videoBox->setLayout(lay);
  55 }
  56
  57 bool AbstractMonitor::isActive() const
  58 {
  59     return m_monitorManager->isActive(m_id);
  60 }
  61
  62 bool AbstractMonitor::slotActivateMonitor()
  63 {
  64     return m_monitorManager->activateMonitor(m_id);
  65 }
  66
  67 VideoContainer::VideoContainer(AbstractMonitor* monitor, QWidget *parent) :
  68     QFrame(parent)
  69     , m_monitor(monitor)
  70 {
  71     setFrameShape(QFrame::NoFrame);
  72     setFocusPolicy(Qt::ClickFocus);
  73     //setEnabled(false);
  74     setContentsMargins(0, 0, 0, 0);
  75     setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
  76 }
  77
  78 // virtual
  79 void VideoContainer::mouseReleaseEvent(QMouseEvent * event)
  80 {
  81     if (event->button() != Qt::RightButton) {
  82         if (m_monitor->isActive()) {
  83             m_monitor->slotPlay();
  84         }
  85     }
  86 }
  87
  88 // virtual
  89 void VideoContainer::keyPressEvent(QKeyEvent *event)
  90 {
  91     // Exit fullscreen with Esc key
  92     if (event->key() == Qt::Key_Escape && isFullScreen()) {
  93         switchFullScreen();
  94         event->setAccepted(true);
  95     } else event->setAccepted(false);
  96 }
  97
  98 // virtual
  99 void VideoContainer::wheelEvent(QWheelEvent * event)
 100 {
 101     m_monitor->slotMouseSeek(event->delta(), event->modifiers() == Qt::ControlModifier);
 102     event->accept();
 103 }
 104
 105 void VideoContainer::mouseDoubleClickEvent(QMouseEvent * event)
 106 {
 107     if (!KdenliveSettings::openglmonitors())
 108         switchFullScreen();
 109     event->accept();
 110 }
 111
 112 void VideoContainer::switchFullScreen()
 113 {
 114     // TODO: disable screensaver?
 115     Qt::WindowFlags flags = windowFlags();
 116     if (!isFullScreen()) {
 117         // Check if we ahave a multiple monitor setup
 118         setUpdatesEnabled(false);
 119 #if QT_VERSION >= 0x040600
 120         int monitors = QApplication::desktop()->screenCount();
 121 #else
 122         int monitors = QApplication::desktop()->numScreens();
 123 #endif
 124         if (monitors > 1) {
 125             QRect screenres;
 126             // Move monitor widget to the second screen (one screen for Kdenlive, the other one for the Monitor widget
 127             int currentScreen = QApplication::desktop()->screenNumber(this);
 128             if (currentScreen < monitors - 1)
 129                 screenres = QApplication::desktop()->screenGeometry(currentScreen + 1);
 130             else
 131                 screenres = QApplication::desktop()->screenGeometry(currentScreen - 1);
 132             move(QPoint(screenres.x(), screenres.y()));
 133             resize(screenres.width(), screenres.height());
 134         }
 135
 136         m_baseFlags = flags & (Qt::Window | Qt::SubWindow);
 137         flags |= Qt::Window;
 138         flags ^= Qt::SubWindow;
 139         setWindowFlags(flags);
 140 #ifdef Q_WS_X11
 141         // This works around a bug with Compiz
 142         // as the window must be visible before we can set the state
 143         show();
 144         raise();
 145         setWindowState(windowState() | Qt::WindowFullScreen);   // set
 146 #else
 147         setWindowState(windowState() | Qt::WindowFullScreen);   // set
 148         setUpdatesEnabled(true);
 149         show();
 150 #endif
 151         setEnabled(true);
 152     } else {
 153         setUpdatesEnabled(false);
 154         flags ^= (Qt::Window | Qt::SubWindow); //clear the flags...
 155         flags |= m_baseFlags; //then we reset the flags (window and subwindow)
 156         setWindowFlags(flags);
 157         setWindowState(windowState()  ^ Qt::WindowFullScreen);   // reset
 158         setUpdatesEnabled(true);
 159         setEnabled(false);
 160         show();
 161     }
 162 }
 163
 164 VideoSurface::VideoSurface(QWidget* parent) :
 165     QWidget(parent)
 166 {
 167     // MonitorRefresh is used as container for the SDL display (it's window id is passed to SDL)
 168     setAttribute(Qt::WA_PaintOnScreen);
 169     setAttribute(Qt::WA_OpaquePaintEvent);
 170     setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
 171     setAttribute(Qt::WA_NoSystemBackground);
 172     setUpdatesEnabled(false);
 173 }
 174
 175 void VideoSurface::paintEvent(QPaintEvent *event)
 176 {
 177     Q_UNUSED(event);
 178     //WARNING: This might trigger unnecessary refreshes from MLT's producer, but without this,
 179     // as soon as monitor is covered by a popup menu or another window, image is corrupted.
 180     emit refreshMonitor();
 181 }
 182