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313 lines
9.7 KiB
313 lines
9.7 KiB
/*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <QtGui>
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#include <QtSvg>
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#include "UBGraphicsMediaItem.h"
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#include "UBGraphicsMediaItemDelegate.h"
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#include "UBGraphicsDelegateFrame.h"
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#include "UBGraphicsScene.h"
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#include "core/UBSettings.h"
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#include "core/UBApplication.h"
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#include "core/UBApplicationController.h"
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#include "core/UBDisplayManager.h"
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#include "domain/UBGraphicsMediaItem.h"
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#include "core/memcheck.h"
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UBGraphicsMediaItemDelegate::UBGraphicsMediaItemDelegate(UBGraphicsMediaItem* pDelegated, QMediaPlayer* pMedia, QObject * parent)
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: UBGraphicsItemDelegate(pDelegated, parent, GF_COMMON
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| GF_RESPECT_RATIO
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| GF_TOOLBAR_USED
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| GF_SHOW_CONTENT_SOURCE)
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, mPlayPauseButton(NULL)
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, mMedia(pMedia)
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, mToolBarShowTimer(NULL)
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, m_iToolBarShowingInterval(5000)
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{
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QPalette palette;
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palette.setBrush ( QPalette::Light, Qt::darkGray );
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mMedia->setNotifyInterval(50);
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connect(mMedia, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)),
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this, SLOT(mediaStatusChanged(QMediaPlayer::MediaStatus)));
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connect(mMedia, SIGNAL(stateChanged(QMediaPlayer::State)),
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this, SLOT(mediaStateChanged(QMediaPlayer::State)));
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connect(mMedia, static_cast<void(QMediaPlayer::*)(QMediaPlayer::Error)>(&QMediaPlayer::error),
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this, &UBGraphicsMediaItemDelegate::mediaError);
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connect(mMedia, SIGNAL(positionChanged(qint64)),
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this, SLOT(updateTicker(qint64)));
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connect(mMedia, SIGNAL(durationChanged(qint64)),
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this, SLOT(totalTimeChanged(qint64)));
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if (delegated()->hasLinkedImage())
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{
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mToolBarShowTimer = new QTimer();
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connect(mToolBarShowTimer, SIGNAL(timeout()), this, SLOT(hideToolBar()));
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mToolBarShowTimer->setInterval(m_iToolBarShowingInterval);
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}
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if (delegated()->isMuted())
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delegated()->setMute(true);
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}
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bool UBGraphicsMediaItemDelegate::mousePressEvent(QGraphicsSceneMouseEvent *event)
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{
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Q_UNUSED(event);
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mToolBarItem->show();
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positionHandles();
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if (mToolBarShowTimer)
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mToolBarShowTimer->start();
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return UBGraphicsItemDelegate::mousePressEvent(event);
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}
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void UBGraphicsMediaItemDelegate::hideToolBar()
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{
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mToolBarItem->hide();
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}
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void UBGraphicsMediaItemDelegate::buildButtons()
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{
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if(!mPlayPauseButton){
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mPlayPauseButton = new DelegateButton(":/images/play.svg", mDelegated, mToolBarItem, Qt::TitleBarArea);
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connect(mPlayPauseButton, SIGNAL(clicked(bool)),
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this, SLOT(togglePlayPause()));
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mStopButton = new DelegateButton(":/images/stop.svg", mDelegated, mToolBarItem, Qt::TitleBarArea);
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connect(mStopButton, SIGNAL(clicked(bool)),
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mMedia, SLOT(stop()));
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mMediaControl = new DelegateMediaControl(delegated(), mToolBarItem);
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mMediaControl->setFlag(QGraphicsItem::ItemIsSelectable, true);
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UBGraphicsItem::assignZValue(mMediaControl, delegated()->zValue());
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if (delegated()->isMuted())
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mMuteButton = new DelegateButton(":/images/soundOff.svg", mDelegated, mToolBarItem, Qt::TitleBarArea);
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else
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mMuteButton = new DelegateButton(":/images/soundOn.svg", mDelegated, mToolBarItem, Qt::TitleBarArea);
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connect(mMuteButton, SIGNAL(clicked(bool)),
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delegated(), SLOT(toggleMute()));
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connect(mMuteButton, SIGNAL(clicked(bool)),
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this, SLOT(toggleMute())); // for changing button image
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mToolBarButtons << mPlayPauseButton << mStopButton << mMuteButton;
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mToolBarItem->setItemsOnToolBar(QList<QGraphicsItem*>() << mPlayPauseButton << mStopButton << mMediaControl << mMuteButton );
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mToolBarItem->setVisibleOnBoard(true);
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mToolBarItem->setShifting(false);
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if (mToolBarShowTimer)
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{
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connect(mPlayPauseButton, SIGNAL(clicked(bool)),
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mToolBarShowTimer, SLOT(start()));
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connect(mStopButton, SIGNAL(clicked(bool)),
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mToolBarShowTimer, SLOT(start()));
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connect(mMediaControl, SIGNAL(used()),
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mToolBarShowTimer, SLOT(start()));
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connect(mMuteButton, SIGNAL(clicked(bool)),
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mToolBarShowTimer, SLOT(start()));
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}
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positionHandles();
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}
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}
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UBGraphicsMediaItemDelegate::~UBGraphicsMediaItemDelegate()
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{
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if (mToolBarShowTimer){
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delete mToolBarShowTimer;
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mToolBarShowTimer = NULL;
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}
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}
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void UBGraphicsMediaItemDelegate::positionHandles()
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{
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UBGraphicsItemDelegate::positionHandles();
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UBGraphicsMediaItem *mediaItem = dynamic_cast<UBGraphicsMediaItem*>(mDelegated);
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if (mediaItem)
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{
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QRectF toolBarRect = mToolBarItem->rect();
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mToolBarItem->setPos(0, mediaItem->boundingRect().height()-mToolBarItem->rect().height());
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toolBarRect.setWidth(mediaItem->boundingRect().width());
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mToolBarItem->show();
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mToolBarItem->setRect(toolBarRect);
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}
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int toolBarButtonsWidth = 0;
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foreach (DelegateButton* button, mToolBarButtons)
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toolBarButtonsWidth += button->boundingRect().width() + mToolBarItem->getElementsPadding();
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QRectF mediaItemRect = mMediaControl->rect();
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mediaItemRect.setWidth(mediaItem->boundingRect().width() - toolBarButtonsWidth);
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mediaItemRect.setHeight(mToolBarItem->boundingRect().height());
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mMediaControl->setRect(mediaItemRect);
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mToolBarItem->positionHandles();
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mMediaControl->positionHandles();
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if (mediaItem)
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mToolBarItem->show();
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}
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void UBGraphicsMediaItemDelegate::remove(bool canUndo)
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{
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if (delegated() && delegated()->mediaObject())
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delegated()->mediaObject()->stop();
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UBGraphicsItemDelegate::remove(canUndo);
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}
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void UBGraphicsMediaItemDelegate::toggleMute()
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{
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if (delegated()->isMuted())
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mMuteButton->setFileName(":/images/soundOff.svg");
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else
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mMuteButton->setFileName(":/images/soundOn.svg");
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}
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UBGraphicsMediaItem* UBGraphicsMediaItemDelegate::delegated()
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{
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return dynamic_cast<UBGraphicsMediaItem*>(mDelegated);
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}
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void UBGraphicsMediaItemDelegate::togglePlayPause()
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{
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if (delegated() && delegated()->mediaObject()) {
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QMediaPlayer * media = delegated()->mediaObject();
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if (media->state() == QMediaPlayer::StoppedState)
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media->play();
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else if (media->state() == QMediaPlayer::PlayingState) {
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if ((media->duration() - media->position()) <= 0) {
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media->stop();
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media->play();
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}
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else {
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media->pause();
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if(delegated()->scene())
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delegated()->scene()->setModified(true);
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}
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}
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else if (media->state() == QMediaPlayer::PausedState) {
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if ((media->duration() - media->position()) <= 0)
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media->stop();
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media->play();
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}
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else if ( media->mediaStatus() == QMediaPlayer::LoadingMedia) {
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delegated()->mediaObject()->setMedia(delegated()->mediaFileUrl());
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media->play();
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}
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if (media->error())
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qDebug() << "Error appeared." << media->errorString();
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}
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}
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void UBGraphicsMediaItemDelegate::mediaStatusChanged(QMediaPlayer::MediaStatus status)
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{
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// Possible statuses are: UnknownMediaStatus, NoMedia, LoadingMedia, LoadedMedia,
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// StalledMedia, BufferingMedia, BufferedMedia, EndOfMedia, InvalidMedia
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if (status == QMediaPlayer::LoadedMedia)
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mMediaControl->totalTimeChanged(delegated()->mediaObject()->duration());
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// in most cases, the only necessary action is to update the play/pause state
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updatePlayPauseState();
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}
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void UBGraphicsMediaItemDelegate::mediaStateChanged(QMediaPlayer::State state)
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{
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// Possible states are StoppedState, PlayingState and PausedState
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// updatePlayPauseState handles this functionality
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updatePlayPauseState();
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}
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void UBGraphicsMediaItemDelegate::mediaError(QMediaPlayer::Error error)
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{
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// Possible errors are NoError, ResourceError, FormatError, NetworkError, AccessDeniedError,
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// ServiceMissingError
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Q_UNUSED(error);
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qDebug() << "Error appeared." << mMedia->errorString();
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}
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void UBGraphicsMediaItemDelegate::updatePlayPauseState()
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{
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QMediaPlayer * media = delegated()->mediaObject();
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if (media->state() == QMediaPlayer::PlayingState)
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mPlayPauseButton->setFileName(":/images/pause.svg");
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else
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mPlayPauseButton->setFileName(":/images/play.svg");
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}
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void UBGraphicsMediaItemDelegate::updateTicker(qint64 time)
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{
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QMediaPlayer* media = delegated()->mediaObject();
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mMediaControl->totalTimeChanged(media->duration());
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mMediaControl->updateTicker(time);
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}
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void UBGraphicsMediaItemDelegate::totalTimeChanged(qint64 newTotalTime)
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{
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mMediaControl->totalTimeChanged(newTotalTime);
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}
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