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/******************************************************************************
*
* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
*
* This 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.
*
* This software 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.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/
#include "LineEditor.h"
#include "CustomPixmap.h"
#include "File.h"
#include "IconSize.h"
#include "BrowseIconButton.h"
#include "ImageFileDialog.h"
#include "InformationDialog.h"
#include "XmlOptions.h"
#include "QtUtil.h"
#include <QMimeData>
#include <QUrl>
//_____________________________________________
BrowseIconButton::BrowseIconButton( QWidget* parent, const QString& file):
CustomToolButton( parent )
{
setIconSize( IconSize::get( IconSize::Huge ) );
setAutoRaise( false );
setFile( file, false );
connect( this, SIGNAL(clicked()), SLOT(_browse()) );
setAcceptDrops( true );
}
//_____________________________________________
bool BrowseIconButton::setFile( const QString& file, bool check )
{
Debug::Throw() << "BrowseIconButton::setFile - " << file << endl;
// do nothing for empty file
if( file.isEmpty() ) return false;
// load pixmap
CustomPixmap pixmap( file );
// update file if pixmap is valid or current file is undefined
if( !pixmap.isNull() || file_.isEmpty() )
{ file_ = file; }
// update pixmap if valid
if( !pixmap.isNull() )
{
// resize pixmap
if( pixmap.size() != IconSize::get( IconSize::Huge ) )
{ pixmap = CustomPixmap( pixmap.scaled( IconSize::get( IconSize::Huge ), Qt::KeepAspectRatio, Qt::SmoothTransformation ) ); }
setIcon( pixmap );
return true;
}
// popup dialog if invalid
if( check )
{ InformationDialog( this, QString( tr( "Invalid icon file %1" ) ).arg( file ) ).exec(); }
// if file, set pixmap to empty
if( noIconPixmap_.isNull() ) {
noIconPixmap_ = CustomPixmap( IconSize::get( IconSize::Huge ), CustomPixmap::Flag::Transparent );
setIcon( noIconPixmap_ );
}
return false;
}
//_____________________________________________
void BrowseIconButton::_browse()
{
Debug::Throw( "BrowseIconButton::_Browse.\n" );
ImageFileDialog dialog( this );
dialog.setFileMode( QFileDialog::AnyFile );
dialog.setAcceptMode( QFileDialog::AcceptOpen );
dialog.setWindowTitle( tr( "Open" ) );
QtUtil::centerOnParent( &dialog );
if( !file_.isEmpty() )
{
// warning: inneficient
File path( File( file_ ).path() );
if( path.exists() && path.isDirectory() ) dialog.setDirectory( path );
dialog.selectFile( File( file_ ) );
}
dialog.show();
if( dialog.exec() == QDialog::Rejected ) return;
// retrieve selected files
QStringList files( dialog.selectedFiles() );
// check file size
if( files.size() > 1 )
{
InformationDialog( this, tr( "Too many files selected." ) ).exec();
return;
}
if( files.size() < 1 )
{
InformationDialog( this, tr( "No file selected." ) ).exec();
return;
}
setFile( files.front(), true );
return;
}
//______________________________________________________________________
void BrowseIconButton::dragEnterEvent( QDragEnterEvent *event )
{
Debug::Throw( "BrowseIconButton::dragEnterEvent.\n" );
if (event->mimeData()->hasUrls()) event->acceptProposedAction();
}
//______________________________________________________________________
void BrowseIconButton::dropEvent( QDropEvent *event )
{
Debug::Throw( "BrowseIconButton::dropEvent.\n" );
// check if event is valid
if( !event->mimeData()->hasUrls() ) return;
// loop over event URLs
for( const auto& url:event->mimeData()->urls() )
{
QFileInfo fileInfo( url.toLocalFile() );
if( fileInfo.exists() && setFile( fileInfo.filePath(), true ) ) event->acceptProposedAction();
}
return;
}
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