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+/***************************************************************************
+ thumbnailpicker.cpp - description
+ -------------------
+ begin : Thu Mar 2 2005
+ copyright : (C) 2005 by Jason Harris
+ email : kstars@30doradus.org
+ ***************************************************************************/
+
+/***************************************************************************
+ * *
+ * 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 of the License, or *
+ * (at your option) any later version. *
+ * *
+ ***************************************************************************/
+
+#include <qframe.h>
+#include <qlayout.h>
+#include <qlabel.h>
+#include <qimage.h>
+#include <qpixmap.h>
+#include <qfile.h>
+#include <qrect.h>
+#include <qstyle.h>
+
+#include <kapplication.h>
+#include <kdeversion.h>
+#include <kpushbutton.h>
+#include <klineedit.h>
+#include <klistbox.h>
+#include <kmessagebox.h>
+#include <kprogress.h>
+#include <kurl.h>
+#include <kurlrequester.h>
+#include <klocale.h>
+#include <ktempfile.h>
+
+#include "thumbnailpicker.h"
+#include "thumbnailpickerui.h"
+#include "thumbnaileditor.h"
+#include "ksutils.h"
+#include "detaildialog.h"
+#include "skyobject.h"
+
+ThumbnailPicker::ThumbnailPicker( SkyObject *o, const QPixmap &current, QWidget *parent, const char *name )
+ : KDialogBase( KDialogBase::Plain, i18n( "Choose Thumbnail Image" ), Ok|Cancel, Ok, parent, name ),
+ SelectedImageIndex(-1), dd((DetailDialog*)parent), Object(o), bImageFound( false )
+{
+ Image = new QPixmap( current );
+ ImageRect = new QRect( 0, 0, 200, 200 );
+
+ QFrame *page = plainPage();
+ QVBoxLayout *vlay = new QVBoxLayout( page, 0, 0 );
+ ui = new ThumbnailPickerUI( page );
+ vlay->addWidget( ui );
+
+ ui->CurrentImage->setPixmap( *Image );
+
+ PixList.setAutoDelete( true );
+
+ connect( ui->EditButton, SIGNAL( clicked() ), this, SLOT( slotEditImage() ) );
+ connect( ui->UnsetButton, SIGNAL( clicked() ), this, SLOT( slotUnsetImage() ) );
+ connect( ui->ImageList, SIGNAL( highlighted( int ) ),
+ this, SLOT( slotSetFromList( int ) ) );
+ connect( ui->ImageURLBox, SIGNAL( urlSelected( const QString& ) ),
+ this, SLOT( slotSetFromURL() ) );
+ connect( ui->ImageURLBox, SIGNAL( returnPressed() ),
+ this, SLOT( slotSetFromURL() ) );
+
+ ui->ImageURLBox->lineEdit()->setTrapReturnKey( true );
+ ui->EditButton->setEnabled( false );
+
+ slotFillList();
+}
+
+ThumbnailPicker::~ThumbnailPicker()
+{}
+
+//Query online sources for images of the object
+void ThumbnailPicker::slotFillList() {
+ //Preload list with object's ImageList:
+ QStringList ImageList( Object->ImageList );
+
+ //Query Google Image Search:
+ KURL gURL( "http://images.google.com/images" );
+ //Search for the primary name, or longname and primary name
+ QString sName = QString("\"%1\"").arg( Object->name() );
+ if ( Object->longname() != Object->name() ) {
+ sName = QString("\"%1\" ").arg( Object->longname() ) + sName;
+ }
+ gURL.addQueryItem( "q", sName ); //add the Google-image query string
+
+ //Download the google page and parse it for image URLs
+ parseGooglePage( ImageList, gURL.prettyURL() );
+
+ //Total Number of images to be loaded:
+ int nImages = ImageList.count();
+ if ( nImages ) {
+ ui->SearchProgress->setTotalSteps( nImages );
+ ui->SearchLabel->setText( i18n( "Loading images..." ) );
+ }
+
+ //Add images from the ImageList
+ QStringList::Iterator itList = ImageList.begin();
+ QStringList::Iterator itListEnd = ImageList.end();
+ for ( ; itList != itListEnd; ++itList ) {
+ QString s( *itList );
+ KURL u( s );
+ if ( u.isValid() && KIO::NetAccess::exists(u, true, this) ) {
+ KTempFile ktf;
+ QFile *tmpFile = ktf.file();
+ ktf.unlink(); //just need filename
+ JobList.append( KIO::copy( u, KURL( tmpFile->name() ), false ) ); //false = no progress window
+#if KDE_IS_VERSION( 3, 3, 90 )
+ ((KIO::CopyJob*)JobList.current())->setInteractive( false ); // suppress error dialogs
+#endif
+ connect (JobList.current(), SIGNAL (result(KIO::Job *)), SLOT (downloadReady (KIO::Job *)));
+
+ }
+ }
+}
+
+void ThumbnailPicker::parseGooglePage( QStringList &ImList, QString URL ) {
+ QString tmpFile;
+ QString PageHTML;
+
+ //Read the google image page's HTML into the PageHTML QString:
+ if ( KIO::NetAccess::exists(URL, true, this) && KIO::NetAccess::download( URL, tmpFile ) ) {
+ QFile file( tmpFile );
+ if ( file.open( IO_ReadOnly ) ) {
+ QTextStream instream(&file);
+ PageHTML = instream.read();
+ file.close();
+ } else {
+ kdDebug() << "Could not read local copy of google image page" << endl;
+ return;
+ }
+ } else {
+ kdDebug() << KIO::NetAccess::lastErrorString() << endl;
+ return;
+ }
+
+ int index = PageHTML.find( "?imgurl=", 0 );
+ while ( index >= 0 ) {
+ index += 8; //move to end of "?imgurl=" marker
+
+ //Image URL is everything from index to next occurence of "&"
+ ImList.append( PageHTML.mid( index, PageHTML.find( "&", index ) - index ) );
+
+ index = PageHTML.find( "?imgurl=", index );
+ }
+}
+
+void ThumbnailPicker::downloadReady(KIO::Job *job) {
+ //Note: no need to delete the job, it is automatically deleted !
+
+ //Update Progressbar
+ if ( ! ui->SearchProgress->isHidden() ) {
+ ui->SearchProgress->advance(1);
+ if ( ui->SearchProgress->progress() == ui->SearchProgress->totalSteps() ) {
+ ui->SearchProgress->hide();
+ ui->SearchLabel->setText( i18n( "Search results:" ) );
+ }
+ }
+
+ //If there was a problem, just return silently without adding image to list.
+ if ( job->error() ) {
+// job->showErrorDialog();
+ return;
+ }
+
+ KIO::CopyJob *cjob = (KIO::CopyJob*)job;
+ QFile tmp( cjob->destURL().path() );
+ tmp.close(); // to get the newest information of the file
+
+ //Add image to list
+ //If image is taller than desktop, rescale it.
+ //I tried to use kapp->style().pixelMetric( QStyle::PM_TitleBarHeight )
+ //for the titlebar height, but this returned zero.
+ //Hard-coding 25 instead :(
+ if ( tmp.exists() ) {
+ QImage im( tmp.name() );
+
+ if ( im.isNull() ) {
+ //KMessageBox::sorry( 0, i18n("Failed to load image"),
+ // i18n("Could Not Load Specified Image") );
+ return;
+ }
+
+ uint w = im.width();
+ uint h = im.height();
+ uint pad = 4*marginHint() + 2*ui->SearchLabel->height() + actionButton( Ok )->height() + 25;
+ uint hDesk = kapp->desktop()->availableGeometry().height() - pad;
+
+// this returns zero...
+// //DEBUG
+// kdDebug() << "Title bar height: " << kapp->style().pixelMetric( QStyle::PM_TitleBarHeight ) << endl;
+
+ if ( h > hDesk )
+ im = im.smoothScale( w*hDesk/h, hDesk );
+
+ PixList.append( new QPixmap( im ) );
+
+ //Add 50x50 image and URL to listbox
+ ui->ImageList->insertItem( shrinkImage( PixList.current(), 50 ),
+ cjob->srcURLs().first().prettyURL() );
+ }
+}
+
+QPixmap ThumbnailPicker::shrinkImage( QPixmap *pm, int size, bool setImage ) {
+ int w( pm->width() ), h( pm->height() );
+ int bigSize( w );
+ int rx(0), ry(0), sx(0), sy(0), bx(0), by(0);
+ if ( size == 0 ) return QPixmap();
+
+ //Prepare variables for rescaling image (if it is larger than 'size')
+ if ( w > size && w >= h ) {
+ h = size;
+ w = size*pm->width()/pm->height();
+ } else if ( h > size && h > w ) {
+ w = size;
+ h = size*pm->height()/pm->width();
+ }
+ sx = (w - size)/2;
+ sy = (h - size)/2;
+ if ( sx < 0 ) { rx = -sx; sx = 0; }
+ if ( sy < 0 ) { ry = -sy; sy = 0; }
+
+ if ( setImage ) bigSize = int( 200.*float(pm->width())/float(w) );
+
+ QPixmap result( size, size );
+ result.fill( QColor( "white" ) ); //in case final image is smaller than 'size'
+
+ if ( pm->width() > size || pm->height() > size ) { //image larger than 'size'?
+ //convert to QImage so we can smoothscale it
+ QImage im( pm->convertToImage() );
+ im = im.smoothScale( w, h );
+
+ //bitBlt sizexsize square section of image
+ bitBlt( &result, rx, ry, &im, sx, sy, size, size );
+ if ( setImage ) {
+ bx = int( sx*float(pm->width())/float(w) );
+ by = int( sy*float(pm->width())/float(w) );
+ ImageRect->setRect( bx, by, bigSize, bigSize );
+ }
+
+ } else { //image is smaller than size x size
+ bitBlt( &result, rx, ry, pm );
+ if ( setImage ) {
+ bx = int( rx*float(pm->width())/float(w) );
+ by = int( ry*float(pm->width())/float(w) );
+ ImageRect->setRect( bx, by, bigSize, bigSize );
+ }
+ }
+
+ return result;
+}
+
+void ThumbnailPicker::slotEditImage() {
+ ThumbnailEditor te( this );
+ if ( te.exec() == QDialog::Accepted ) {
+ QPixmap pm = te.thumbnail();
+ *Image = pm;
+ ui->CurrentImage->setPixmap( pm );
+ ui->CurrentImage->update();
+ }
+}
+
+void ThumbnailPicker::slotUnsetImage() {
+ QFile file;
+ if ( KSUtils::openDataFile( file, "noimage.png" ) ) {
+ file.close();
+ Image->load( file.name(), "PNG" );
+ } else {
+ Image->resize( dd->thumbnail()->width(), dd->thumbnail()->height() );
+ Image->fill( dd->paletteBackgroundColor() );
+ }
+
+ ui->EditButton->setEnabled( false );
+ ui->CurrentImage->setPixmap( *Image );
+ ui->CurrentImage->update();
+
+ bImageFound = false;
+}
+
+void ThumbnailPicker::slotSetFromList( int i ) {
+ //Display image in preview pane
+ QPixmap pm;
+ pm = shrinkImage( PixList.at(i), 200, true ); //scale image
+ SelectedImageIndex = i;
+
+ ui->CurrentImage->setPixmap( pm );
+ ui->CurrentImage->update();
+ ui->EditButton->setEnabled( true );
+
+ //Set Image to the selected 200x200 pixmap
+ *Image = pm;
+ bImageFound = true;
+}
+
+void ThumbnailPicker::slotSetFromURL() {
+ //Attempt to load the specified URL
+ KURL u = ui->ImageURLBox->url();
+
+ if ( u.isValid() ) {
+ if ( u.isLocalFile() ) {
+ QFile localFile( u.path() );
+
+ //Add image to list
+ //If image is taller than desktop, rescale it.
+ QImage im( localFile.name() );
+
+ if ( im.isNull() ) {
+ KMessageBox::sorry( 0,
+ i18n("Failed to load image at %1").arg( localFile.name() ),
+ i18n("Failed to Load Image") );
+ return;
+ }
+
+ uint w = im.width();
+ uint h = im.height();
+ uint pad = 4*marginHint() + 2*ui->SearchLabel->height() + actionButton( Ok )->height() + 25;
+ uint hDesk = kapp->desktop()->availableGeometry().height() - pad;
+
+ if ( h > hDesk )
+ im = im.smoothScale( w*hDesk/h, hDesk );
+
+ //Add Image to top of list and 50x50 thumbnail image and URL to top of listbox
+ PixList.insert( 0, new QPixmap( im ) );
+ ui->ImageList->insertItem( shrinkImage( PixList.current(), 50 ),
+ u.prettyURL(), 0 );
+
+ //Select the new image
+ ui->ImageList->setCurrentItem( 0 );
+ slotSetFromList(0);
+
+ } else if ( KIO::NetAccess::exists(u, true, this) ) {
+ KTempFile ktf;
+ QFile *tmpFile = ktf.file();
+ ktf.unlink(); //just need filename
+ JobList.append( KIO::copy( u, KURL( tmpFile->name() ), false ) ); //false = no progress window
+#if KDE_IS_VERSION( 3, 3, 90 )
+ ((KIO::CopyJob*)JobList.current())->setInteractive( false ); // suppress error dialogs
+#endif
+ connect (JobList.current(), SIGNAL (result(KIO::Job *)), SLOT (downloadReady (KIO::Job *)));
+
+ //
+ }
+ }
+}
+
+
+#include "thumbnailpicker.moc"
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