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