MediaControlBase.cxx

Go to the documentation of this file.

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
#include <avmedia/MediaControlBase.hxx>
#include <avmedia/mediaplayer.hxx>
#include <avmedia/mediaitem.hxx>
#include <tools/time.hxx>
#include <tools/duration.hxx>
#include <unotools/localedatawrapper.hxx>
#include <strings.hrc>
#include <helpids.h>
#include <mediamisc.hxx>
 
constexpr sal_Int32 AVMEDIA_DB_RANGE = -40;
constexpr double AVMEDIA_LINEINCREMENT = 1.0;
constexpr double AVMEDIA_PAGEINCREMENT = 10.0;
 
namespace avmedia {
 
MediaControlBase::MediaControlBase()
    : mbCurrentlySettingZoom(false)
{
}
 
void MediaControlBase::UpdateTimeField( MediaItem const & aMediaItem, double fTime )
{
    if( aMediaItem.getURL().isEmpty())
        return;
 
    OUString aTimeString;
 
    SvtSysLocale aSysLocale;
    const LocaleDataWrapper& rLocaleData = aSysLocale.GetLocaleData();
 
    aTimeString += rLocaleData.getDuration(
            tools::Duration( 0, 0, 0, static_cast<sal_uInt32>( floor( fTime )), 0)) +
        " / " +
        rLocaleData.getDuration(
                tools::Duration( 0, 0, 0, static_cast<sal_uInt32>( floor( aMediaItem.getDuration())), 0));
 
    if( mxTimeEdit->get_text() != aTimeString )
        mxTimeEdit->set_text( aTimeString );
}
 
void MediaControlBase::UpdateVolumeSlider( MediaItem const & aMediaItem )
{
    if( aMediaItem.getURL().isEmpty() )
        mxVolumeSlider->set_sensitive(false);
    else
    {
        mxVolumeSlider->set_sensitive(true);
        const sal_Int32 nVolumeDB = aMediaItem.getVolumeDB();
        mxVolumeSlider->set_value( std::clamp( nVolumeDB, AVMEDIA_DB_RANGE, sal_Int32(0)) );
    }
}
 
void MediaControlBase::UpdateTimeSlider( MediaItem const & aMediaItem )
{
    if( aMediaItem.getURL().isEmpty() )
        mxTimeSlider->set_sensitive(false);
    else
    {
        mxTimeSlider->set_sensitive(true);
 
        const double fDuration = aMediaItem.getDuration();
 
        if( fDuration > 0.0 )
        {
            const double fTime = std::min( aMediaItem.getTime(), fDuration );
 
            bool bChanged(false);
            int nStep(0), nPage(0);
            mxTimeSlider->get_increments(nStep, nPage);
            if (!nStep)
            {
                nStep = AVMEDIA_TIME_RANGE * AVMEDIA_LINEINCREMENT / fDuration;
                bChanged = true;
            }
            if (!nPage)
            {
                nPage = AVMEDIA_TIME_RANGE * AVMEDIA_PAGEINCREMENT / fDuration;
                bChanged = true;
            }
            if (bChanged)
                mxTimeSlider->set_increments(nStep, nPage);
 
            mxTimeSlider->set_value(fTime / fDuration * AVMEDIA_TIME_RANGE);
        }
    }
}
 
void MediaControlBase::InitializeWidgets()
{
    mxPlayToolBox->set_item_help_id("play", HID_AVMEDIA_TOOLBOXITEM_PLAY);
    mxPlayToolBox->set_item_help_id("pause", HID_AVMEDIA_TOOLBOXITEM_PAUSE);
    mxPlayToolBox->set_item_help_id("stop", HID_AVMEDIA_TOOLBOXITEM_STOP);
    mxPlayToolBox->set_item_help_id("loop", HID_AVMEDIA_TOOLBOXITEM_LOOP);
    mxMuteToolBox->set_item_help_id("mute", HID_AVMEDIA_TOOLBOXITEM_MUTE);
 
    mxZoomListBox->append(OUString::number(AVMEDIA_ZOOMLEVEL_50), AvmResId( AVMEDIA_STR_ZOOM_50 ));
    mxZoomListBox->append(OUString::number(AVMEDIA_ZOOMLEVEL_100), AvmResId( AVMEDIA_STR_ZOOM_100 ));
    mxZoomListBox->append(OUString::number(AVMEDIA_ZOOMLEVEL_200), AvmResId( AVMEDIA_STR_ZOOM_200 ));
    mxZoomListBox->append(OUString::number(AVMEDIA_ZOOMLEVEL_FIT),  AvmResId( AVMEDIA_STR_ZOOM_FIT ));
    mxZoomListBox->set_help_id( HID_AVMEDIA_ZOOMLISTBOX );
    mxZoomListBox->set_tooltip_text(AvmResId( AVMEDIA_STR_ZOOM_TOOLTIP ));
 
    mxTimeEdit->set_text( " 00:00:00/00:00:00 " );
    mxTimeEdit->set_help_id( HID_AVMEDIA_TIMEEDIT );
    mxTimeEdit->set_sensitive(false);
 
    mxVolumeSlider->set_range(AVMEDIA_DB_RANGE, 0);
    mxVolumeSlider->set_tooltip_text( AvmResId( AVMEDIA_STR_VOLUME ));
    mxVolumeSlider->set_help_id( HID_AVMEDIA_VOLUMESLIDER );
 
    mxTimeSlider->set_range( 0, AVMEDIA_TIME_RANGE );
    mxTimeSlider->set_tooltip_text( AvmResId( AVMEDIA_STR_POSITION ));
}
 
void MediaControlBase::UpdatePlayState(const MediaItem& rMediaItem)
{
    if (rMediaItem.getState() == MediaState::Play)
    {
        mxPlayToolBox->set_item_active("play", true);
        mxPlayToolBox->set_item_active("pause", false);
        mxPlayToolBox->set_item_active("stop", false);
    }
    else if( rMediaItem.getState() == MediaState::Pause )
    {
        mxPlayToolBox->set_item_active("play", false);
        mxPlayToolBox->set_item_active("pause", true);
        mxPlayToolBox->set_item_active("stop", false);
    }
    else
    {
        mxPlayToolBox->set_item_active("play", false);
        mxPlayToolBox->set_item_active("pause", false);
        mxPlayToolBox->set_item_active("stop", true);
    }
}
 
void MediaControlBase::UpdateToolBoxes(const MediaItem& rMediaItem)
{
    const bool bValidURL = !rMediaItem.getURL().isEmpty();
    mxPlayToolBox->set_item_sensitive("play", bValidURL);
    mxPlayToolBox->set_item_sensitive("pause", bValidURL);
    mxPlayToolBox->set_item_sensitive("stop", bValidURL);
    mxPlayToolBox->set_item_sensitive("loop", bValidURL);
    mxMuteToolBox->set_item_sensitive("mute", bValidURL);
    if( !bValidURL )
    {
        mxZoomListBox->set_sensitive(false);
        mxMuteToolBox->set_sensitive(false);
    }
    else
    {
        mxPlayToolBox->set_sensitive(true);
        mxMuteToolBox->set_sensitive(true);
        UpdatePlayState(rMediaItem);
        mxPlayToolBox->set_item_active("loop", rMediaItem.isLoop());
        mxMuteToolBox->set_item_active("mute", rMediaItem.isMute());
        if (!mbCurrentlySettingZoom)
        {
            sal_uInt16 nSelectEntryPos ;
 
            switch( rMediaItem.getZoom() )
            {
                case css::media::ZoomLevel_ZOOM_1_TO_2:
                    nSelectEntryPos = AVMEDIA_ZOOMLEVEL_50;
                    break;
                case css::media::ZoomLevel_ORIGINAL:
                    nSelectEntryPos = AVMEDIA_ZOOMLEVEL_100;
                    break;
                case css::media::ZoomLevel_ZOOM_2_TO_1:
                    nSelectEntryPos = AVMEDIA_ZOOMLEVEL_200;
                    break;
                case css::media::ZoomLevel_FIT_TO_WINDOW_FIXED_ASPECT:
                    nSelectEntryPos = AVMEDIA_ZOOMLEVEL_FIT;
                    break;
                case css::media::ZoomLevel_FIT_TO_WINDOW:
                    nSelectEntryPos = AVMEDIA_ZOOMLEVEL_SCALED;
                    break;
 
                default:
                    nSelectEntryPos = AVMEDIA_ZOOMLEVEL_INVALID;
                    break;
            }
 
            if( nSelectEntryPos != AVMEDIA_ZOOMLEVEL_INVALID )
            {
                mxZoomListBox->show();
                mxZoomListBox->set_sensitive(true);
                mxZoomListBox->set_active(nSelectEntryPos);
            }
            else
                mxZoomListBox->set_sensitive(false);
        }
    }
}
 
void MediaControlBase::SelectPlayToolBoxItem( MediaItem& aExecItem, MediaItem const & aItem, std::u16string_view rId)
{
    if (rId == u"apply")
    {
        MediaFloater* pFloater = avmedia::getMediaFloater();
 
        if( pFloater )
            pFloater->dispatchCurrentURL();
    }
    else if (rId == u"play")
    {
        aExecItem.setState( MediaState::Play );
 
        if( aItem.getTime() == aItem.getDuration() )
            aExecItem.setTime( 0.0 );
        else
            aExecItem.setTime( aItem.getTime() );
 
        UpdatePlayState(aExecItem);
    }
    else if (rId == u"pause")
    {
        aExecItem.setState( MediaState::Pause );
 
        UpdatePlayState(aExecItem);
    }
    else if (rId == u"stop")
    {
        aExecItem.setState( MediaState::Stop );
        aExecItem.setTime( 0.0 );
 
        UpdatePlayState(aExecItem);
    }
    else if (rId == u"mute")
    {
        aExecItem.setMute( mxMuteToolBox->get_item_active("mute") );
    }
    else if (rId == u"loop")
    {
        aExecItem.setLoop( mxPlayToolBox->get_item_active("loop") );
    }
}
 
void MediaControlBase::disposeWidgets()
{
    mxZoomListBox.reset();
    mxTimeEdit.reset();
    mxVolumeSlider.reset();
    mxMuteToolBox.reset();
    mxTimeSlider.reset();
    mxPlayToolBox.reset();
}
 
}
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */