vellipsetool.cpp

/* This file is part of the KDE project
   Copyright (C) 2001, 2002, 2003 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 <tqgroupbox.h>
#include <tqlabel.h>
 
#include <tdelocale.h>
#include "KoUnitWidgets.h"
#include <KoUnit.h>
#include <kcombobox.h>
#include <knuminput.h>
 
#include <karbon_view.h>
#include <karbon_part.h>
#include <shapes/vellipse.h>
#include "vellipsetool.h"
#include "vglobal.h"
 
 
VEllipseOptionsWidget::VEllipseOptionsWidget( KarbonPart *part, TQWidget *parent, const char *name )
    : KDialogBase( parent, name, true, i18n( "Insert Ellipse" ), Ok | Cancel ), m_part( part )
{
    TQGroupBox *group = new TQGroupBox( 2, TQt::Horizontal, i18n( "Properties" ), this );
    new TQLabel( i18n( "Type:" ), group );
    m_type = new KComboBox( false, group );
    m_type->insertItem( i18n( "Full" ), VEllipse::full );
    m_type->insertItem( i18n( "Section" ), VEllipse::section );
    m_type->insertItem( i18n( "Pie" ), VEllipse::cut );
    m_type->insertItem( i18n( "Arc" ), VEllipse::arc );
    connect( m_type, TQ_SIGNAL( activated( int ) ), this, TQ_SLOT( typeChanged( int ) ) );
 
    // add width/height-input:
    m_widthLabel = new TQLabel( i18n( "object width", "Width:" ), group );
    m_width = new KoUnitDoubleSpinBox( group, 0.0, 1000.0, 0.5, 100.0, KoUnit::U_MM );
    m_heightLabel = new TQLabel( i18n( "Height:" ), group );
    m_height = new KoUnitDoubleSpinBox( group, 0.0, 1000.0, 0.5, 100.0, KoUnit::U_MM );
 
    new TQLabel( i18n( "Start angle:" ), group );
    m_startAngle = new KIntSpinBox( group );
    m_startAngle->setMinValue( 0 );
    m_startAngle->setMaxValue( 360 );
 
    new TQLabel( i18n( "End angle:" ), group );
    m_endAngle = new KIntSpinBox( group );
    m_endAngle->setMinValue( 0 );
    m_endAngle->setMaxValue( 360 );
 
    typeChanged( VEllipse::full );
 
    refreshUnit();
 
    group->setInsideMargin( 4 );
    group->setInsideSpacing( 2 );
 
    setMainWidget( group );
    setFixedSize( baseSize() );
}
 
void
VEllipseOptionsWidget::typeChanged( int type )
{
    m_startAngle->setEnabled( type != VEllipse::full );
    m_endAngle->setEnabled( type != VEllipse::full );
}
 
uint
VEllipseOptionsWidget::type() const
{
    return m_type->currentItem();
}
 
uint
VEllipseOptionsWidget::startAngle() const
{
    return m_startAngle->value();
}
 
uint
VEllipseOptionsWidget::endAngle() const
{
    return m_endAngle->value();
}
 
double
VEllipseOptionsWidget::width() const
{
    return m_width->value();
}
 
double
VEllipseOptionsWidget::height() const
{
    return m_height->value();
}
 
void
VEllipseOptionsWidget::setWidth( double value )
{
    m_width->changeValue( value );
}
 
void
VEllipseOptionsWidget::setHeight( double value )
{
    m_height->changeValue( value );
}
 
void
VEllipseOptionsWidget::refreshUnit ()
{
    m_width->setUnit( m_part->unit() );
    m_height->setUnit( m_part->unit() );
}
 
VEllipseTool::VEllipseTool( KarbonView *view )
    : VShapeTool( view, "tool_ellipse" )
{
    // create config dialog:
    m_optionsWidget = new VEllipseOptionsWidget( view->part() );
    registerTool( this );
 
    m_startAngle = m_endAngle = 0;
    m_state = normal;
}
 
VEllipseTool::~VEllipseTool()
{
    delete( m_optionsWidget );
}
 
void
VEllipseTool::refreshUnit()
{
    m_optionsWidget->refreshUnit();
}
 
VPath*
VEllipseTool::shape( bool interactive ) const
{
    if( interactive )
    {
        double d1 = m_optionsWidget->width() / 2.0;
        double d2 = m_optionsWidget->height() / 2.0;
        return
            new VEllipse(
                0L,
                KoPoint( m_center.x() - d1, m_center.y() - d2 ),
                d1 * 2.0, d2 * 2.0,
                (VEllipse::VEllipseType)m_optionsWidget->type(),
                m_optionsWidget->startAngle(),
                m_optionsWidget->endAngle() );
    }
    else
        return
            new VEllipse(
                0L,
                KoPoint( m_center.x() - m_d1, m_center.y() - m_d2 ),
                m_d1 * 2.0,
                m_d2 * 2.0,
                (VEllipse::VEllipseType)m_optionsWidget->type(),
                m_startAngle, m_endAngle );
}
 
void
VEllipseTool::mouseMove()
{
    if( m_state == normal )
        return;
 
    draw();
 
    //recalc();
 
    if( m_state == startangle )
    {
        m_startAngle = atan2( last().y() - m_center.y(), last().x() - m_center.x() );
        m_startAngle = ( m_startAngle / VGlobal::pi_2 ) * 90.0;
        if( m_startAngle < 0 )
            m_startAngle += 360.0;
    }
    else
    {
        m_endAngle = atan2( last().y() - m_center.y(), last().x() - m_center.x() );
        m_endAngle = ( m_endAngle / VGlobal::pi_2 ) * 90.0;
        if( m_endAngle < 0 )
            m_endAngle += 360.0;
    }
 
    draw();
}
 
void
VEllipseTool::mouseDragRelease()
{
    if( m_optionsWidget->type() == VEllipse::full )
        VShapeTool::mouseDragRelease();
 
    if( m_state == normal )
        if( m_optionsWidget->type() != VEllipse::full )
            m_state = startangle;
}
 
void
VEllipseTool::mouseButtonPress()
{
    if( m_state == normal )
    {
        VShapeTool::mouseButtonPress();
        m_center = first();
    }
}
 
void
VEllipseTool::mouseButtonRelease()
{
    if( m_optionsWidget->type() == VEllipse::full || m_state == normal )
        VShapeTool::mouseButtonRelease();
 
    if( m_state == startangle )
        m_state = endangle;
    else if( m_state == endangle )
    {
        VShapeTool::mouseDragRelease();
        m_startAngle = m_endAngle = 0;
        m_state = normal;
    }
}
 
void
VEllipseTool::cancel()
{
    if( isDragging() )
        VShapeTool::cancel();
    else
        draw();
 
    m_startAngle = m_endAngle = 0;
    m_state = normal;
}
 
bool
VEllipseTool::showDialog() const
{
    return m_optionsWidget->exec() == TQDialog::Accepted;
}
 
void
VEllipseTool::setup( TDEActionCollection *collection )
{
    m_action = static_cast<TDERadioAction *>(collection -> action( name() ) );
 
    if( m_action == 0 )
    {
        m_action = new TDERadioAction( i18n( "Ellipse Tool" ), "14_ellipse", TQt::SHIFT+TQt::Key_H, this, TQ_SLOT( activate() ), collection, name() );
        m_action->setToolTip( i18n( "Ellipse" ) );
        m_action->setExclusiveGroup( "shapes" );
        //m_ownAction = true;
    }
}
 
#include "vellipsetool.moc"