1 files changed, 340 insertions, 0 deletions
diff --git a/src/libs/widgets/metadata/gpswidget.cpp b/src/libs/widgets/metadata/gpswidget.cpp
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+++ b/src/libs/widgets/metadata/gpswidget.cpp
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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date        : 2006-02-22
+ * Description : a tab widget to display GPS info
+ *
+ * Copyright (C) 2006-2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General
+ * Public License as published by the Free Software Foundation;
+ * either version 2, or (at your option)
+ * any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * ============================================================ */
+
+/*
+Any good explainations about GPS (in French) can be found at this url :
+http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=16593
+*/
+
+// TQt includes.
+
+#include <tqlayout.h>
+#include <tqpushbutton.h>
+#include <tqmap.h>
+#include <tqhbox.h>
+#include <tqfile.h>
+#include <tqcombobox.h>
+#include <tqgroupbox.h>
+
+// KDE includes.
+
+#include <kdialogbase.h>
+#include <tdelocale.h>
+#include <tdeapplication.h>
+
+// Local includes.
+
+#include "ddebug.h"
+#include "dmetadata.h"
+#include "metadatalistview.h"
+#include "worldmapwidget.h"
+#include "gpswidget.h"
+#include "gpswidget.moc"
+
+namespace Digikam
+{
+
+static const char* ExifGPSHumanList[] =
+{
+     "GPSLatitude",
+     "GPSLongitude",
+     "GPSAltitude",
+     "-1"
+};
+
+// Standard Exif Entry list from to less important to the most important for photograph.
+static const char* StandardExifGPSEntryList[] =
+{
+     "GPSInfo",
+     "-1"
+};
+
+class GPSWidgetPriv
+{
+
+public:
+
+    GPSWidgetPriv()
+    {
+        detailsButton = 0;
+        detailsCombo  = 0;
+        map           = 0;
+    }
+
+    TQStringList     tagsfilter;
+    TQStringList     keysFilter;
+    
+    TQPushButton    *detailsButton;
+
+    TQComboBox      *detailsCombo;
+    
+    WorldMapWidget *map;
+};
+
+GPSWidget::GPSWidget(TQWidget* parent, const char* name)
+         : MetadataWidget(parent, name)
+{
+    d = new GPSWidgetPriv;
+    
+    for (int i=0 ; TQString(StandardExifGPSEntryList[i]) != TQString("-1") ; i++)
+        d->keysFilter << StandardExifGPSEntryList[i];
+
+    for (int i=0 ; TQString(ExifGPSHumanList[i]) != TQString("-1") ; i++)
+        d->tagsfilter << ExifGPSHumanList[i];
+
+    // --------------------------------------------------------
+            
+    TQWidget *gpsInfo    = new TQWidget(this);
+    TQGridLayout *layout = new TQGridLayout(gpsInfo, 3, 2);
+    d->map              = new WorldMapWidget(256, 256, gpsInfo);
+
+    // --------------------------------------------------------
+    
+    TQGroupBox* box2 = new TQGroupBox( 0, TQt::Vertical, gpsInfo );
+    box2->setInsideMargin(0);
+    box2->setInsideSpacing(0);    
+    box2->setFrameStyle( TQFrame::NoFrame );
+    TQGridLayout* box2Layout = new TQGridLayout( box2->layout(), 0, 2, KDialog::spacingHint() );
+
+    d->detailsCombo  = new TQComboBox( false, box2 );
+    d->detailsButton = new TQPushButton(i18n("More Info..."), box2);
+    d->detailsCombo->insertItem(TQString("MapQuest"), MapQuest);
+    d->detailsCombo->insertItem(TQString("Google Maps"), GoogleMaps);
+    d->detailsCombo->insertItem(TQString("MSN Maps"), MsnMaps);
+    d->detailsCombo->insertItem(TQString("MultiMap"), MultiMap);
+    
+    box2Layout->addMultiCellWidget( d->detailsCombo, 0, 0, 0, 0 );
+    box2Layout->addMultiCellWidget( d->detailsButton, 0, 0, 1, 1 );
+    box2Layout->setColStretch(2, 10);
+
+    // --------------------------------------------------------
+    
+    layout->addMultiCellWidget(d->map, 0, 0, 0, 2);
+    layout->addMultiCell(new TQSpacerItem(KDialog::spacingHint(), KDialog::spacingHint(), 
+                         TQSizePolicy::Minimum, TQSizePolicy::MinimumExpanding), 1, 1, 0, 2);
+    layout->addMultiCellWidget(box2, 2, 2, 0, 0);
+    layout->setColStretch(2, 10);
+    layout->setRowStretch(3, 10);
+
+    // --------------------------------------------------------
+    
+    connect(d->detailsButton, TQ_SIGNAL(clicked()),
+            this, TQ_SLOT(slotGPSDetails()));
+            
+    setUserAreaWidget(gpsInfo);
+    decodeMetadata();
+}
+
+GPSWidget::~GPSWidget()
+{
+    delete d;
+}
+
+int GPSWidget::getWebGPSLocator()
+{
+    return ( d->detailsCombo->currentItem() );
+}
+    
+void GPSWidget::setWebGPSLocator(int locator)
+{
+    d->detailsCombo->setCurrentItem(locator);
+}
+    
+void GPSWidget::slotGPSDetails()
+{
+    TQString val, url;
+
+    switch( getWebGPSLocator() )
+    {
+        case MapQuest:
+        {
+            url.append("http://www.mapquest.com/maps/map.adp?searchtype=address"
+                        "&formtype=address&latlongtype=decimal");
+            url.append("&latitude=");
+            url.append(val.setNum(d->map->getLatitude(), 'g', 12));
+            url.append("&longitude=");
+            url.append(val.setNum(d->map->getLongitude(), 'g', 12));
+            break;
+        }
+
+        case GoogleMaps: 
+        {
+            url.append("http://maps.google.com/?q=");
+            url.append(val.setNum(d->map->getLatitude(), 'g', 12));
+            url.append(",");
+            url.append(val.setNum(d->map->getLongitude(), 'g', 12));
+            url.append("&spn=0.05,0.05&t=h&om=1&hl=en");
+            break;
+        }
+
+        case MsnMaps:  
+        {
+            url.append("http://maps.msn.com/map.aspx?");
+            url.append("&lats1=");
+            url.append(val.setNum(d->map->getLatitude(), 'g', 12));
+            url.append("&lons1=");
+            url.append(val.setNum(d->map->getLongitude(), 'g', 12));
+            url.append("&name=HERE");            
+            url.append("&alts1=7");            
+            break;
+        }
+
+        case MultiMap:
+        {
+            url.append("http://www.multimap.com/map/browse.cgi?");
+            url.append("lat=");
+            url.append(val.setNum(d->map->getLatitude(), 'g', 12));
+            url.append("&lon=");
+            url.append(val.setNum(d->map->getLongitude(), 'g', 12));
+            url.append("&scale=10000");            
+            url.append("&icon=x");            
+            break;
+        }
+    }
+    
+    TDEApplication::kApplication()->invokeBrowser(url);
+}
+
+TQString GPSWidget::getMetadataTitle()
+{
+    return i18n("Global Positioning System Information");
+}
+
+bool GPSWidget::loadFromURL(const KURL& url)
+{
+    setFileName(url.path());
+    
+    if (url.isEmpty())
+    {
+        setMetadata();
+        return false;
+    }
+    else
+    {    
+        DMetadata metadata(url.path());
+        TQByteArray exifData = metadata.getExif();
+
+        if (exifData.isEmpty())
+        {
+            setMetadata();
+            return false;
+        }
+        else
+            setMetadata(exifData);
+    }
+
+    return true;
+}
+
+bool GPSWidget::decodeMetadata()
+{
+    DMetadata metaData;
+    if (!metaData.setExif(getMetadata()))
+    {
+        setMetadataEmpty();
+        return false;
+    }
+
+    // Update all metadata contents.
+    setMetadataMap(metaData.getExifTagsDataList(d->keysFilter));
+
+    bool ret = decodeGPSPosition();
+    if (!ret)
+    {
+        setMetadataEmpty();
+        return false;
+    }
+
+    d->map->setEnabled(true);
+    d->detailsButton->setEnabled(true);
+    d->detailsCombo->setEnabled(true);
+    return true;
+}
+
+void GPSWidget::setMetadataEmpty()
+{
+    MetadataWidget::setMetadataEmpty();
+    d->map->setEnabled(false);
+    d->detailsButton->setEnabled(false);
+    d->detailsCombo->setEnabled(false);
+}
+
+void GPSWidget::buildView()
+{    
+    if (getMode() == SIMPLE)
+    {
+        setIfdList(getMetadataMap(), d->keysFilter, d->tagsfilter);
+    }
+    else
+    {
+        setIfdList(getMetadataMap(), d->keysFilter, TQStringList());
+    }
+
+    MetadataWidget::buildView();
+}
+
+TQString GPSWidget::getTagTitle(const TQString& key)
+{
+    DMetadata meta;
+    TQString title = meta.getExifTagTitle(key.ascii());
+
+    if (title.isEmpty())
+        return key.section('.', -1);
+
+    return title;
+}
+
+TQString GPSWidget::getTagDescription(const TQString& key)
+{
+    DMetadata meta;
+    TQString desc = meta.getExifTagDescription(key.ascii());
+
+    if (desc.isEmpty())
+        return i18n("No description available");
+
+    return desc;
+}
+
+bool GPSWidget::decodeGPSPosition()
+{
+    double latitude=0.0, longitude=0.0, altitude=0.0;
+    
+    DMetadata meta;
+    meta.setExif(getMetadata());
+
+    if (meta.getGPSInfo(altitude, latitude, longitude))
+        d->map->setGPSPosition(latitude, longitude);
+    else 
+        return false;
+
+    return true;
+}
+
+void GPSWidget::slotSaveMetadataToFile()
+{
+    KURL url = saveMetadataToFile(i18n("EXIF File to Save"),
+                                  TQString("*.exif|"+i18n("EXIF binary Files (*.exif)")));
+    storeMetadataToFile(url);
+}
+
+}  // namespace Digikam