insertknotsplugin.cpp

/* This file is part of the KDE project
   Copyright (C) 2002, The Karbon Developers
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
 
   This library 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
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
 
 
#include "insertknotsplugin.h"
#include <karbon_view.h>
#include <karbon_part.h>
#include <core/vpath.h>
#include <core/vsegment.h>
#include <kgenericfactory.h>
#include <kdebug.h>
#include <tqgroupbox.h>
#include <tqlabel.h>
 
#include <knuminput.h>
 
typedef KGenericFactory<InsertKnotsPlugin, KarbonView> InsertKnotsPluginFactory;
K_EXPORT_COMPONENT_FACTORY( karbon_insertknotsplugin, InsertKnotsPluginFactory( "karboninsertknotsplugin" ) )
 
InsertKnotsPlugin::InsertKnotsPlugin( KarbonView *parent, const char* name, const TQStringList & ) : Plugin( parent, name )
{
    new TDEAction(
        i18n( "&Insert Knots..." ), "14_insertknots", 0, this,
        TQ_SLOT( slotInsertKnots() ), actionCollection(), "path_insert_knots" );
 
    m_insertKnotsDlg = new VInsertKnotsDlg();
}
 
void
InsertKnotsPlugin::slotInsertKnots()
{
    KarbonPart *part = ((KarbonView *)parent())->part();
    if( part && m_insertKnotsDlg->exec() )
        part->addCommand( new VInsertKnotsCmd( &part->document(), m_insertKnotsDlg->knots() ), true );
}
 
VInsertKnotsDlg::VInsertKnotsDlg( TQWidget* parent, const char* name )
    : KDialogBase( parent, name, true,  i18n( "Insert Knots" ), Ok | Cancel )
{
    // add input fields:
    TQGroupBox* group = new TQGroupBox( 2, TQt::Horizontal, i18n( "Properties" ), this );
 
    new TQLabel( i18n( "Knots:" ), group );
    m_knots = new KIntSpinBox( group );
    m_knots->setMinValue( 1 );
    group->setMinimumWidth( 300 );
 
    // signals and slots:
    connect( this, TQ_SIGNAL( okClicked() ), this, TQ_SLOT( accept() ) );
    connect( this, TQ_SIGNAL( cancelClicked() ), this, TQ_SLOT( reject() ) );
 
    setMainWidget( group );
    setFixedSize( baseSize() );
}
 
uint
VInsertKnotsDlg::knots() const
{
    return m_knots->value();
}
 
void
VInsertKnotsDlg::setKnots( uint value )
{
    m_knots->setValue( value );
}
 
 
VInsertKnotsCmd::VInsertKnotsCmd( VDocument* doc, uint knots )
    : VReplacingCmd( doc, i18n( "Insert Knots" ) )
{
    m_knots = knots > 0 ? knots : 1;
}
 
void
VInsertKnotsCmd::visitVSubpath( VSubpath& path )
{
    path.first();
 
    double length;
 
    // Ommit first segment.
    while( path.next() )
    {
        length = path.current()->length();
 
        for( uint i = m_knots; i > 0; --i )
        {
            path.insert(
                path.current()->splitAt(
                    path.current()->lengthParam( length / ( m_knots + 1.0 ) ) ) );
 
            path.next();
        }
 
        if( !success() )
            setSuccess();
    }
}
 
#include "insertknotsplugin.moc"