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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 "ImageFileDialog.h"
#include "CustomPixmap.h"
#include "FileDialog.h"
#include "File.h"
#include "Debug.h"
#include "Util.h"
#include "XmlOptions.h"
#include <QFileInfo>
#include <QUrl>
#include <QImage>
#include <QLayout>
#include <QLabel>
#include <QMimeData>
#include <QPushButton>
#include <QSplitter>
//______________________________________________________________________
ImageFileDialog::ImageFileDialog( QWidget* parent ):
QFileDialog( parent )
{
Debug::Throw( "ImageFileDialog::ImageFileDialog.\n" );
// no size grip, ever
setSizeGripEnabled( false );
// working directory
if( !FileDialog::_workingDirectory().isEmpty() && QFileInfo( FileDialog::_workingDirectory() ).isDir() )
{ setDirectory( QDir( FileDialog::_workingDirectory() ) ); }
Debug::Throw() << "ImageFileDialog::ImageFileDialog - working directory: " << FileDialog::_workingDirectory() << endl;
connect( this, SIGNAL(directoryEntered(QString)), SLOT(_saveWorkingDirectory(QString)) );
// add image display
QSplitter* splitter = findChild<QSplitter*>( "splitter" );
if( splitter )
{
QWidget *main( new QWidget );
splitter->addWidget( main );
QVBoxLayout *vLayout = new QVBoxLayout;
main->setLayout( vLayout );
vLayout->setSpacing(5);
vLayout->setMargin(0);
vLayout->addWidget( preview_ = new Label( main ), 1 );
preview_->setAlignment( Qt::AlignCenter );
preview_->setFrameStyle( QFrame::StyledPanel|QFrame::Sunken );
QHBoxLayout *hLayout = new QHBoxLayout;
hLayout->setSpacing(5);
hLayout->setMargin(0);
vLayout->addLayout( hLayout );
hLayout->addWidget( automaticPreview_ = new QCheckBox( tr( "Automatic preview" ), main ) );
automaticPreview_->setChecked( true );
QPushButton* button = new QPushButton( tr( "Preview" ), main );
hLayout->addWidget( button );
connect( button, SIGNAL(clicked()), SLOT(_preview()) );
} else Debug::Throw(0) << "ImageFileDialog::ImageFileDialog - unable to find splitter." << endl;
connect( this, SIGNAL(currentChanged (QString)), SLOT(_currentChanged(QString)) );
}
//______________________________________________________________________
ImageFileDialog::Label::Label( QWidget* parent ):
QLabel( parent ),
Counter( "ImageFileDialog::Label" )
{ setAcceptDrops( true ); }
//______________________________________________________________________
void ImageFileDialog::Label::dragEnterEvent( QDragEnterEvent *event )
{
Debug::Throw( "ImageFileDialog::Label::dragEnterEvent.\n" );
if (event->mimeData()->hasUrls()) event->acceptProposedAction();
}
//______________________________________________________________________
void ImageFileDialog::Label::dropEvent( QDropEvent *event )
{
Debug::Throw( "ImageFileDialog::Label::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() )
{
ImageFileDialog& dialog( *static_cast<ImageFileDialog*>( window() ) );
if( fileInfo.isDir() ) dialog.setDirectory( fileInfo.filePath() );
else {
dialog.setDirectory( fileInfo.path() );
dialog.selectFile( File( fileInfo.fileName() ) );
if( dialog.automaticPreview_ && dialog.automaticPreview_->isChecked() )
{ dialog._currentChanged( fileInfo.filePath() ); }
}
event->acceptProposedAction();
return;
}
}
}
//______________________________________________________________________
void ImageFileDialog::_saveWorkingDirectory( QString directory )
{
Debug::Throw() << "ImageFileDialog::_saveWorkingDirectory - directory: " << directory << endl;
FileDialog::_workingDirectory() = File( QFileInfo( directory ).absolutePath() );
}
//______________________________________________________________________
void ImageFileDialog::_currentChanged( const QString& value )
{
Debug::Throw( "ImageFileDialog::_currentChanged.\n" );
currentPath_ = File( value );
if( automaticPreview_ && automaticPreview_->isChecked() ) _preview();
}
//______________________________________________________________________
void ImageFileDialog::_preview()
{
Debug::Throw( "ImageFileDialog::_preview.\n" );
// nothing if no preview
if( !preview_ ) return;
// try load svg
CustomPixmap pixmap;
if( currentPath_.endsWith( ".svg" ) || currentPath_.endsWith( ".svgz" ) )
{
QSize size( 0.8*preview_->width(), 0.8*preview_->height() );
pixmap = CustomPixmap( QIcon( currentPath_ ).pixmap( size ) );
} else pixmap = CustomPixmap( currentPath_ );
// check and scale
if( pixmap.isNull() ) preview_->setPixmap( QPixmap() );
else {
if( pixmap.width() > preview_->width()*0.8 || pixmap.height() > preview_->height()*0.8 )
{ pixmap = CustomPixmap( pixmap.scaled( int(preview_->width()*0.8), int(preview_->height()*0.8), Qt::KeepAspectRatio, Qt::SmoothTransformation ) ); }
preview_->setPixmap( pixmap );
}
}
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