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tdegraphics/kpovmodeler/pmlibraryentrypreview.cpp

345 lines
11 KiB

/*
**************************************************************************
description
--------------------
copyright : (C) 2002 by Luis Carvalho
email : lpassos@mail.telepac.pt
**************************************************************************
**************************************************************************
* *
* 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 "pmlibraryobject.h"
#include "pmlibraryhandle.h"
#include "pmlibraryentrypreview.h"
#include "pmdialogeditbase.h"
#include "pmpart.h"
#include "pmtreeview.h"
#include "pmxmlparser.h"
#include "pmscene.h"
#include "pmobjectdrag.h"
#include <tqlabel.h>
#include <tqlineedit.h>
#include <tqmultilineedit.h>
#include <tqlayout.h>
#include <tqpushbutton.h>
#include <tqdragobject.h>
#include <kurl.h>
#include <klocale.h>
#include <kdialog.h>
#include <kmessagebox.h>
#include <kfiledialog.h>
PMLibraryEntryPreview::PMLibraryEntryPreview( TQWidget* parent ) :
TQWidget( parent )
{
setAcceptDrops( true );
m_pPart = new PMPart( this, "treeview", NULL, "part", false, true );
m_pPart->setReadWrite( false );
m_readOnly = true;
m_modified = false;
m_subLib = false;
setMaximumSize( 1000, 1000 );
TQVBoxLayout* vl = new TQVBoxLayout( this, KDialog::spacingHint( ) );
TQHBoxLayout* hl = new TQHBoxLayout( vl );
hl->addStretch( 1 );
TQGridLayout* gl = new TQGridLayout( vl, 4, 2 );
gl->setColStretch( 1, 1 );
TQLabel* lbl = new TQLabel( i18n( "Name: " ), this );
m_pName = new TQLineEdit( this );
m_pName->setAlignment( TQt::AlignLeft );
m_pName->setReadOnly( true );
gl->addWidget( lbl, 0, 0 );
gl->addWidget( m_pName, 0, 1 );
lbl = new TQLabel( i18n( "Description:" ), this );
lbl->setAlignment( TQt::AlignTop );
m_pDescription = new TQMultiLineEdit( this );
m_pDescription->setAlignment( TQt::AlignTop | TQt::AlignLeft |
TQt::WordBreak | TQt::DontClip );
m_pDescription->setReadOnly( true );
gl->addWidget( lbl, 1, 0 );
gl->addWidget( m_pDescription, 1, 1 );
m_pKeywordsLabel = new TQLabel( i18n( "Keywords:" ), this );
m_pKeywordsLabel->setAlignment( TQt::AlignTop );
m_pKeywords = new TQMultiLineEdit( this );
m_pKeywords->setAlignment( TQt::AlignTop | TQt::AlignLeft |
TQt::WordBreak | TQt::DontClip );
m_pKeywords->setReadOnly( true );
gl->addWidget( m_pKeywordsLabel, 2, 0 );
gl->addWidget( m_pKeywords, 2, 1 );
m_pContentsLabel = new TQLabel( i18n( "Contents:" ), this );
m_pContentsPreview = new PMTreeView( m_pPart, this );
gl->addMultiCellWidget( m_pContentsLabel, 3, 3, 0, 1 );
gl->addMultiCellWidget( m_pContentsPreview, 4, 4, 0, 1 );
gl->setRowStretch(4, 1);
hl = new TQHBoxLayout( vl );
hl->addStretch( 1 );
m_pSetPreviewImageButton = new TQPushButton( i18n( "Change Preview Image" ), this );
m_pSetPreviewImageButton->setEnabled( false );
hl->addWidget( m_pSetPreviewImageButton );
hl = new TQHBoxLayout( vl );
hl->addStretch( 1 );
m_pApplyChanges = new TQPushButton( i18n( "&Apply" ), this );
m_pApplyChanges->setEnabled( false );
hl->addWidget( m_pApplyChanges );
m_pCancelChanges = new TQPushButton( i18n( "&Cancel" ), this );
m_pCancelChanges->setEnabled( false );
hl->addWidget( m_pCancelChanges );
connect( m_pName, TQT_SIGNAL( textChanged( const TQString& ) ),
TQT_SLOT( slotTextChanged( const TQString& ) ) );
connect( m_pDescription, TQT_SIGNAL( textChanged( ) ),
TQT_SLOT( slotTextChanged( ) ) );
connect( m_pKeywords, TQT_SIGNAL( textChanged( ) ),
TQT_SLOT( slotTextChanged( ) ) );
connect( m_pSetPreviewImageButton, TQT_SIGNAL( clicked( ) ),
TQT_SLOT( slotPreviewClicked( ) ) );
connect( m_pPart, TQT_SIGNAL( modified( ) ),
TQT_SLOT( slotTextChanged( ) ) );
connect( m_pApplyChanges, TQT_SIGNAL( clicked( ) ), TQT_SLOT( slotApplyClicked( ) ) );
connect( m_pCancelChanges, TQT_SIGNAL( clicked( ) ), TQT_SLOT( slotCancelClicked( ) ) );
vl->addStretch( 1 );
}
PMLibraryEntryPreview::~PMLibraryEntryPreview( )
{
// delete m_pPart;
}
bool PMLibraryEntryPreview::showPreview( KURL u, bool readOnly, bool subLib )
{
bool result = false;
if( u.isLocalFile( ) )
{
result = saveIfNeeded( );
m_image.reset( );
m_subLib = subLib;
if( subLib )
{
// Load the new subLib to preview
PMLibraryHandle lib( u.path( ) );
m_pName->setText( lib.name( ) );
m_pDescription->setText( lib.description( ) );
m_pKeywords->setText( "" );
m_pPart->setReadWrite( true );
m_pPart->setScene( new PMScene( m_pPart ) );
m_pContentsPreview->slotRefresh( );
m_pPart->setReadWrite( false );
}
else
{
// Load the new object to preview
PMLibraryObject aux( u );
m_pName->setText( aux.name( ) );
m_pDescription->setText( aux.description( ) );
m_pKeywords->setText( aux.keywords( ) );
if( aux.preview( ) )
{
m_image = aux.preview( )->copy( );
}
loadObjects( aux.objects( ) );
// Save the preview location
}
m_pKeywordsLabel->setEnabled( !subLib );
m_pKeywords->setEnabled( !subLib );
m_pContentsLabel->setEnabled( !subLib );
m_pContentsPreview->setEnabled( !subLib );
setReadOnly( readOnly );
setModified( false );
m_currentURL = u;
}
return result;
}
void PMLibraryEntryPreview::loadObjects( TQByteArray* obj )
{
m_pPart->setReadWrite( true );
m_pPart->setScene( new PMScene( m_pPart ) );
if( obj )
{
PMXMLParser parser( m_pPart, *obj );
m_pPart->insertFromParser( i18n( "Object Load" ), &parser, m_pPart->scene( ) );
}
m_pPart->setReadWrite( false );
m_pContentsPreview->slotRefresh( );
}
void PMLibraryEntryPreview::clearPreview( )
{
saveIfNeeded( );
m_pName->setText( "" );
m_pDescription->setText( "" );
m_pKeywords->setText( "" );
m_image.reset( );
m_pPart->setReadWrite( true );
m_pPart->setScene( new PMScene( m_pPart ) );
m_pContentsPreview->slotRefresh( );
m_pPart->setReadWrite( false );
setReadOnly( true );
setModified( false );
}
void PMLibraryEntryPreview::setReadOnly( bool b )
{
m_readOnly = b;
if( b )
{
m_pName->setReadOnly( true );
m_pDescription->setReadOnly( true );
m_pKeywords->setReadOnly( true );
m_pSetPreviewImageButton->setEnabled( false );
m_pPart->setReadWrite( false );
}
else
{
m_pName->setReadOnly( false );
m_pDescription->setReadOnly( false );
if( m_subLib )
{
m_pKeywords->setReadOnly( true );
m_pSetPreviewImageButton->setEnabled( false );
m_pPart->setReadWrite( false );
}
else
{
m_pKeywords->setReadOnly( false );
m_pSetPreviewImageButton->setEnabled( true );
m_pPart->setReadWrite( true );
}
}
}
void PMLibraryEntryPreview::slotTextChanged( )
{
setModified( true );
}
void PMLibraryEntryPreview::slotTextChanged( const TQString& /* s */)
{
setModified( true );
}
void PMLibraryEntryPreview::slotPreviewClicked( )
{
KFileDialog dlg( TQString(), "", NULL, "", false );
dlg.setFilter( "image/jpeg image/gif image/tiff image/png image/x-bmp" );
if( dlg.exec( ) == TQDialog::Accepted )
{
m_image.load( dlg.selectedFile( ) );
setModified( true );
}
}
void PMLibraryEntryPreview::slotApplyClicked( )
{
saveIfNeeded( true );
emit objectChanged( );
}
void PMLibraryEntryPreview::slotCancelClicked( )
{
setModified( false );
showPreview( m_currentURL, m_readOnly, m_subLib );
}
bool PMLibraryEntryPreview::saveIfNeeded( bool forceSave )
{
if ( m_modified )
{
// ask if we must save the changes
if( forceSave || KMessageBox::questionYesNo( this,
i18n( "The object has been modified and not saved.\nDo you wish to save?" ),
i18n( "Warning" ), KStdGuiItem::save(), KStdGuiItem::discard() ) == KMessageBox::Yes )
{
if( m_subLib )
{
PMLibraryHandle lib( m_currentURL.path( ) );
lib.setName( m_pName->text( ) );
lib.setDescription( m_pDescription->text( ) );
lib.saveLibraryInfo( );
}
else
{
PMLibraryObject objToSave;
PMObjectList sortedList;
PMObject* tmp;
// First save the text parameters.
objToSave.setName( m_pName->text( ) );
objToSave.setDescription( m_pDescription->text( ) );
objToSave.setKeywords( m_pKeywords->text( ) );
// Gather the contents of the part.
tmp = m_pPart->scene( )->firstChild( );
while( tmp )
{
sortedList.append( tmp );
tmp = tmp->nextSibling();
}
// Add them to the object to save.
PMObjectDrag drag( m_pPart, sortedList );
objToSave.setObjects( drag.encodedData( "application/x-kpovmodeler" ) );
// Add the preview image
objToSave.setPreview( m_image.copy( ) );
// Finally save the object to a file.
kdDebug( 0 ) << m_currentURL.path( ) << "\n";
objToSave.save( m_currentURL.path( ) );
}
setModified( false );
return true;
}
setModified( false );
}
return false;
}
void PMLibraryEntryPreview::dragEnterEvent( TQDragEnterEvent* event )
{
event->accept( !m_readOnly && TQImageDrag::canDecode( event ) );
}
void PMLibraryEntryPreview::dropEvent( TQDropEvent* event )
{
TQImage img;
if( TQImageDrag::decode( event, img ) )
{
m_image = img;
setModified( true );
}
}
void PMLibraryEntryPreview::setModified( bool modified )
{
m_modified = modified;
m_pApplyChanges->setEnabled( modified );
m_pCancelChanges->setEnabled( modified );
}
#include "pmlibraryentrypreview.moc"