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341 lines
8.6 KiB
341 lines
8.6 KiB
/* ============================================================
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*
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* This file is a part of digiKam project
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* http://www.digikam.org
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*
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* Date : 2006-02-22
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* Description : a tab widget to display GPS info
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*
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* Copyright (C) 2006-2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software Foundation;
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* either version 2, or (at your option)
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* any later version.
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*
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* This program 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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* ============================================================ */
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/*
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Any good explainations about GPS (in French) can be found at this url :
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http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=16593
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*/
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// TQt includes.
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#include <tqlayout.h>
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#include <tqpushbutton.h>
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#include <tqmap.h>
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#include <tqhbox.h>
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#include <tqfile.h>
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#include <tqcombobox.h>
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#include <tqgroupbox.h>
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// KDE includes.
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#include <kdialogbase.h>
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#include <tdelocale.h>
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#include <tdeapplication.h>
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// Local includes.
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#include "ddebug.h"
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#include "dmetadata.h"
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#include "metadatalistview.h"
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#include "worldmapwidget.h"
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#include "gpswidget.h"
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#include "gpswidget.moc"
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namespace Digikam
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{
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static const char* ExifGPSHumanList[] =
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{
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"GPSLatitude",
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"GPSLongitude",
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"GPSAltitude",
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"-1"
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};
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// Standard Exif Entry list from to less important to the most important for photograph.
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static const char* StandardExifGPSEntryList[] =
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{
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"GPSInfo",
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"-1"
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};
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class GPSWidgetPriv
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{
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public:
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GPSWidgetPriv()
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{
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detailsButton = 0;
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detailsCombo = 0;
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map = 0;
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}
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TQStringList tagsfilter;
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TQStringList keysFilter;
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TQPushButton *detailsButton;
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TQComboBox *detailsCombo;
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WorldMapWidget *map;
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};
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GPSWidget::GPSWidget(TQWidget* parent, const char* name)
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: MetadataWidget(parent, name)
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{
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d = new GPSWidgetPriv;
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for (int i=0 ; TQString(StandardExifGPSEntryList[i]) != TQString("-1") ; i++)
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d->keysFilter << StandardExifGPSEntryList[i];
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for (int i=0 ; TQString(ExifGPSHumanList[i]) != TQString("-1") ; i++)
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d->tagsfilter << ExifGPSHumanList[i];
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// --------------------------------------------------------
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TQWidget *gpsInfo = new TQWidget(this);
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TQGridLayout *layout = new TQGridLayout(gpsInfo, 3, 2);
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d->map = new WorldMapWidget(256, 256, gpsInfo);
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// --------------------------------------------------------
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TQGroupBox* box2 = new TQGroupBox( 0, TQt::Vertical, gpsInfo );
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box2->setInsideMargin(0);
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box2->setInsideSpacing(0);
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box2->setFrameStyle( TQFrame::NoFrame );
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TQGridLayout* box2Layout = new TQGridLayout( box2->layout(), 0, 2, KDialog::spacingHint() );
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d->detailsCombo = new TQComboBox( false, box2 );
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d->detailsButton = new TQPushButton(i18n("More Info..."), box2);
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d->detailsCombo->insertItem(TQString("MapQuest"), MapQuest);
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d->detailsCombo->insertItem(TQString("Google Maps"), GoogleMaps);
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d->detailsCombo->insertItem(TQString("MSN Maps"), MsnMaps);
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d->detailsCombo->insertItem(TQString("MultiMap"), MultiMap);
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box2Layout->addMultiCellWidget( d->detailsCombo, 0, 0, 0, 0 );
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box2Layout->addMultiCellWidget( d->detailsButton, 0, 0, 1, 1 );
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box2Layout->setColStretch(2, 10);
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// --------------------------------------------------------
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layout->addMultiCellWidget(d->map, 0, 0, 0, 2);
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layout->addMultiCell(new TQSpacerItem(KDialog::spacingHint(), KDialog::spacingHint(),
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TQSizePolicy::Minimum, TQSizePolicy::MinimumExpanding), 1, 1, 0, 2);
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layout->addMultiCellWidget(box2, 2, 2, 0, 0);
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layout->setColStretch(2, 10);
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layout->setRowStretch(3, 10);
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// --------------------------------------------------------
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connect(d->detailsButton, TQT_SIGNAL(clicked()),
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this, TQT_SLOT(slotGPSDetails()));
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setUserAreaWidget(gpsInfo);
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decodeMetadata();
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}
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GPSWidget::~GPSWidget()
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{
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delete d;
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}
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int GPSWidget::getWebGPSLocator()
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{
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return ( d->detailsCombo->currentItem() );
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}
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void GPSWidget::setWebGPSLocator(int locator)
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{
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d->detailsCombo->setCurrentItem(locator);
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}
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void GPSWidget::slotGPSDetails()
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{
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TQString val, url;
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switch( getWebGPSLocator() )
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{
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case MapQuest:
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{
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url.append("http://www.mapquest.com/maps/map.adp?searchtype=address"
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"&formtype=address&latlongtype=decimal");
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url.append("&latitude=");
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url.append(val.setNum(d->map->getLatitude(), 'g', 12));
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url.append("&longitude=");
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url.append(val.setNum(d->map->getLongitude(), 'g', 12));
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break;
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}
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case GoogleMaps:
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{
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url.append("http://maps.google.com/?q=");
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url.append(val.setNum(d->map->getLatitude(), 'g', 12));
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url.append(",");
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url.append(val.setNum(d->map->getLongitude(), 'g', 12));
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url.append("&spn=0.05,0.05&t=h&om=1&hl=en");
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break;
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}
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case MsnMaps:
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{
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url.append("http://maps.msn.com/map.aspx?");
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url.append("&lats1=");
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url.append(val.setNum(d->map->getLatitude(), 'g', 12));
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url.append("&lons1=");
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url.append(val.setNum(d->map->getLongitude(), 'g', 12));
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url.append("&name=HERE");
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url.append("&alts1=7");
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break;
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}
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case MultiMap:
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{
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url.append("http://www.multimap.com/map/browse.cgi?");
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url.append("lat=");
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url.append(val.setNum(d->map->getLatitude(), 'g', 12));
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url.append("&lon=");
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url.append(val.setNum(d->map->getLongitude(), 'g', 12));
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url.append("&scale=10000");
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url.append("&icon=x");
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break;
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}
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}
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TDEApplication::kApplication()->invokeBrowser(url);
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}
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TQString GPSWidget::getMetadataTitle()
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{
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return i18n("Global Positioning System Information");
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}
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bool GPSWidget::loadFromURL(const KURL& url)
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{
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setFileName(url.path());
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if (url.isEmpty())
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{
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setMetadata();
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return false;
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}
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else
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{
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DMetadata metadata(url.path());
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TQByteArray exifData = metadata.getExif();
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if (exifData.isEmpty())
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{
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setMetadata();
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return false;
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}
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else
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setMetadata(exifData);
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}
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return true;
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}
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bool GPSWidget::decodeMetadata()
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{
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DMetadata metaData;
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if (!metaData.setExif(getMetadata()))
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{
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setMetadataEmpty();
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return false;
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}
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// Update all metadata contents.
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setMetadataMap(metaData.getExifTagsDataList(d->keysFilter));
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bool ret = decodeGPSPosition();
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if (!ret)
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{
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setMetadataEmpty();
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return false;
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}
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d->map->setEnabled(true);
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d->detailsButton->setEnabled(true);
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d->detailsCombo->setEnabled(true);
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return true;
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}
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void GPSWidget::setMetadataEmpty()
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{
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MetadataWidget::setMetadataEmpty();
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d->map->setEnabled(false);
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d->detailsButton->setEnabled(false);
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d->detailsCombo->setEnabled(false);
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}
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void GPSWidget::buildView()
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{
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if (getMode() == SIMPLE)
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{
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setIfdList(getMetadataMap(), d->keysFilter, d->tagsfilter);
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}
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else
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{
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setIfdList(getMetadataMap(), d->keysFilter, TQStringList());
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}
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MetadataWidget::buildView();
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}
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TQString GPSWidget::getTagTitle(const TQString& key)
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{
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DMetadata meta;
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TQString title = meta.getExifTagTitle(key.ascii());
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if (title.isEmpty())
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return key.section('.', -1);
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return title;
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}
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TQString GPSWidget::getTagDescription(const TQString& key)
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{
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DMetadata meta;
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TQString desc = meta.getExifTagDescription(key.ascii());
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if (desc.isEmpty())
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return i18n("No description available");
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return desc;
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}
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bool GPSWidget::decodeGPSPosition()
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{
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double latitude=0.0, longitude=0.0, altitude=0.0;
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DMetadata meta;
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meta.setExif(getMetadata());
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if (meta.getGPSInfo(altitude, latitude, longitude))
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d->map->setGPSPosition(latitude, longitude);
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else
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return false;
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return true;
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}
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void GPSWidget::slotSaveMetadataToFile()
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{
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KURL url = saveMetadataToFile(i18n("EXIF File to Save"),
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TQString("*.exif|"+i18n("EXIF binary Files (*.exif)")));
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storeMetadataToFile(url);
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}
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} // namespace Digikam
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