kivio_shape.cpp

/*
 * Kivio - Visual Modelling and Flowcharting
 * Copyright (C) 2000-2001 theKompany.com & Dave Marotti
 *
 * 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.
 *
 * This program 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
#include <stdio.h>
#include <kdebug.h>
#include "kivio_common.h"
#include "kivio_fill_style.h"
#include "kivio_line_style.h"
#include "kivio_point.h"
#include "kivio_shape.h"
#include "kivio_text_style.h"

KivioShape::KivioShape()
{
}
 

KivioShape::KivioShape( const KivioShape &source )
{
    source.m_shapeData.copyInto( &m_shapeData );
}
 

KivioShape::~KivioShape()
{
}
 

void KivioShape::copyInto( KivioShape *pTarget ) const
{
    if( !pTarget )
        return;
 
    m_shapeData.copyInto( &(pTarget->m_shapeData) );
}
 

bool KivioShape::loadXML( const TQDomElement &e )
{
    TQDomElement ele;
    TQDomNode node = e.firstChild();
 
    TQString name = XmlReadString( e, "name", "" );
    m_shapeData.setName( name );
    m_shapeData.setShapeType( (KivioShapeData::KivioShapeType)XmlReadInt( e, "shapeType", -1 ));
 
    if( m_shapeData.name().isEmpty() ||
        m_shapeData.shapeType() == -1 )
    {
       kdWarning(43000) << "-LOAD KivioShape::loadXML() - Unknown shape or bad name read. Shape load aborted." << endl;
       return false;
    }
 
    while( !node.isNull() )
    {
        TQString nodeName = node.nodeName();
        ele = node.toElement();
 
        if( nodeName == "KivioShapeData" )
        {
            m_shapeData.loadXML( ele );
        }
 
        node = node.nextSibling();
    }
    return true;
}
 

TQDomElement KivioShape::saveXML( TQDomDocument &doc )
{
    TQDomElement e = doc.createElement("KivioShape");
 
    XmlWriteString( e, "name", m_shapeData.m_name );
    XmlWriteInt( e, "shapeType", m_shapeData.m_shapeType );
 
    e.appendChild( m_shapeData.saveXML( doc ) );
 
    return e;
}
 

KivioShape *KivioShape::loadShapeArc( const TQDomElement & )
{
    return NULL;
}
 

KivioShape *KivioShape::loadShapeClosedPath( const TQDomElement &e )
{
    KivioShape *pShape = NULL;
    KivioPoint *pPoint = NULL;
    TQDomNode node;
    TQString nodeName;
    
 
    // Create the new shape to load into
    pShape = new KivioShape();
    
    // Load the type, name, and lineWidth properties
    pShape->m_shapeData.m_shapeType = KivioShapeData::kstClosedPath;
    pShape->m_shapeData.m_name = XmlReadString( e, "name", "" );
 
    // Iterate through the nodes loading the various items
    node = e.firstChild();
    while( !node.isNull() )
    {
        nodeName = node.nodeName();
        
        // The line array  is made up of pairs of points
        if( nodeName == "KivioPoint" )
        {
            // Allocate a new point, load it, and store it in the list
            pPoint = new KivioPoint(0.0f, 0.0f, KivioPoint::kptBezier);
            pPoint->loadXML( node.toElement() );
            pShape->m_shapeData.m_pOriginalPointList->append( pPoint );
            pPoint = NULL;
        }
        else if( nodeName == "KivioFillStyle" )
        {
            pShape->m_shapeData.m_pFillStyle->loadXML( node.toElement() );
        }
        else if( nodeName == "KivioLineStyle" )
        {
            pShape->m_shapeData.m_pLineStyle->loadXML( node.toElement() );
        }
    
        node = node.nextSibling();
    }
        
    return pShape;
}
 

KivioShape *KivioShape::loadShapeBezier( const TQDomElement &e )
{
    KivioShape *pShape = NULL;
    KivioPoint *pPoint = NULL;
    TQDomNode node;
    TQString nodeName;
    
 
    // Create the new shape to load into
    pShape = new KivioShape();
    
    // Load the type, name, and lineWidth properties
    pShape->m_shapeData.m_shapeType = KivioShapeData::kstBezier;
    pShape->m_shapeData.m_name = XmlReadString( e, "name", "" );
 
    // Iterate through the nodes loading the various items
    node = e.firstChild();
    while( !node.isNull() )
    {
        nodeName = node.nodeName();
        
        // The line array  is made up of pairs of points
        if( nodeName == "KivioPoint" )
        {
            // Allocate a new point, load it, and store it in the list
            pPoint = new KivioPoint(0.0f, 0.0f, KivioPoint::kptBezier);
            pPoint->loadXML( node.toElement() );
            if( pPoint->pointType() != KivioPoint::kptBezier )
            {
           kdDebug(43000) << "KivioShape::loadShapeBezier() - Non-bezier point found.  Aborting shape." << endl;
                delete pPoint;
                delete pShape;
                return NULL;
            }
            pShape->m_shapeData.m_pOriginalPointList->append( pPoint );
            pPoint = NULL;
        }
        else if( nodeName == "KivioLineStyle" )
        {
            pShape->m_shapeData.m_pLineStyle->loadXML( node.toElement() );
        }
 
        node = node.nextSibling();
    }
    
    if( pShape->m_shapeData.m_pOriginalPointList->count() != 4 )
    {
       kdDebug(43000) << "KivioShape::loadShapeBezier() - Wrong number of points loaded, should be 4, shape aborted" << endl;
        delete pShape;
        return NULL;
    }
    
    return pShape;
}
 

KivioShape *KivioShape::loadShapeEllipse( const TQDomElement &e )
{
    KivioShape *pShape = NULL;
    TQDomNode node;
    TQString nodeName;
    
 
    // Create the new shape to load into
    pShape = new KivioShape();
    
    // Load the type, name, and lineWidth properties
    pShape->m_shapeData.m_shapeType = KivioShapeData::kstEllipse;
    pShape->m_shapeData.m_name = XmlReadString( e, "name", "" );
 
    pShape->m_shapeData.m_position.set( XmlReadFloat( e, "x", 0.0f ), XmlReadFloat( e, "y", 0.0f ) );
    pShape->m_shapeData.m_dimensions.set( XmlReadFloat( e, "w", 0.0f ), XmlReadFloat( e, "h", 0.0f ) );
        
    // Iterate through the nodes loading the various items
    node = e.firstChild();
    while( !node.isNull() )
    {
        nodeName = node.nodeName();
        
        if( nodeName == "KivioFillStyle" )
        {
            pShape->m_shapeData.m_pFillStyle->loadXML( node.toElement() );
        }
        else if( nodeName == "KivioLineStyle" )
        {
            pShape->m_shapeData.m_pLineStyle->loadXML( node.toElement() );
        }
 
        node = node.nextSibling();
    }
    
    return pShape;
}
 

KivioShape *KivioShape::loadShapeLineArray( const TQDomElement &e )
{
    KivioShape *pShape = NULL;
    KivioPoint *pPoint = NULL;
    TQDomNode node;
    TQString nodeName;
    TQDomElement lineElement;
    
 
    // Create the new shape to load into
    pShape = new KivioShape();
    
    // Load the type, name, and lineWidth properties
    pShape->m_shapeData.m_shapeType = KivioShapeData::kstLineArray;
    pShape->m_shapeData.m_name = XmlReadString( e, "name", "" );
 
    // Iterate through the nodes loading the various items
    node = e.firstChild();
    while( !node.isNull() )
    {
        nodeName = node.nodeName();
        
        // The line array  is made up of pairs of points
        if( nodeName == "Line" )
        {
            lineElement = node.toElement();
 
            // Allocate a new point, load it, and store it in the list
            pPoint = new KivioPoint( XmlReadFloat( lineElement, "x1", 0.0f ), XmlReadFloat( lineElement, "y1", 0.0f ) );
            pShape->m_shapeData.m_pOriginalPointList->append( pPoint );
            pPoint = new KivioPoint( XmlReadFloat( lineElement, "x2", 0.0f ), XmlReadFloat( lineElement, "y2", 0.0f ) );
            pShape->m_shapeData.m_pOriginalPointList->append( pPoint );
            pPoint = NULL;
        }
        else if( nodeName == "KivioLineStyle" )
        {
            pShape->m_shapeData.m_pLineStyle->loadXML( node.toElement() );
        }
 
        node = node.nextSibling();
    }
 
    return pShape;
}
 

KivioShape *KivioShape::loadShapeOpenPath( const TQDomElement &e )
{
    KivioShape *pShape = NULL;
    KivioPoint *pPoint = NULL;
    TQDomNode node;
    TQString nodeName;
    
 
    // Create the new shape to load into
    pShape = new KivioShape();
    
    // Load the type, name, and lineWidth properties
    pShape->m_shapeData.m_shapeType = KivioShapeData::kstOpenPath;
    pShape->m_shapeData.m_name = XmlReadString( e, "name", "" );
 
    // Iterate through the nodes loading the various items
    node = e.firstChild();
    while( !node.isNull() )
    {
        nodeName = node.nodeName();
        
        // The line array  is made up of pairs of points
        if( nodeName == "KivioPoint" )
        {
            // Allocate a new point, load it, and store it in the list
            pPoint = new KivioPoint(0.0f, 0.0f, KivioPoint::kptBezier);
            pPoint->loadXML( node.toElement() );
            pShape->m_shapeData.m_pOriginalPointList->append( pPoint );
            pPoint = NULL;
        }
        else if( nodeName == "KivioLineStyle" )
        {
            pShape->m_shapeData.m_pLineStyle->loadXML( node.toElement() );
        }
 
        node = node.nextSibling();
    }
        
    return pShape;
}
 

KivioShape *KivioShape::loadShapePie( const TQDomElement & )
{
    return NULL;
}
 

KivioShape *KivioShape::loadShapePolygon( const TQDomElement &e )
{
    KivioShape *pShape = NULL;
    KivioPoint *pPoint = NULL;
    TQDomNode node;
    TQString nodeName;
    
 
    // Create the new shape to load into
    pShape = new KivioShape();
    
    // Load the type, name, and lineWidth properties
    pShape->m_shapeData.m_shapeType = KivioShapeData::kstPolygon;
    pShape->m_shapeData.m_name = XmlReadString( e, "name", "" );
 
    // Iterate through the nodes loading the various items
    node = e.firstChild();
    while( !node.isNull() )
    {
        nodeName = node.nodeName();
        
        // The polygon is made up of a series of points
        if( nodeName == "KivioPoint" )
        {
            // Allocate a new point, load it, and store it in the list
            pPoint = new KivioPoint();
            pPoint->loadXML( node.toElement() );
            pShape->m_shapeData.m_pOriginalPointList->append( pPoint );
            pPoint = NULL;
        }
        else if( nodeName == "KivioFillStyle" )
        {
            pShape->m_shapeData.m_pFillStyle->loadXML( node.toElement() );
        }
        else if( nodeName == "KivioLineStyle" )
        {
            pShape->m_shapeData.m_pLineStyle->loadXML( node.toElement() );
        }
 
        node = node.nextSibling();
    }
    
    return pShape;
}
 

KivioShape *KivioShape::loadShapePolyline( const TQDomElement &e )
{
    KivioShape *pShape = NULL;
    KivioPoint *pPoint = NULL;
    TQDomNode node;
    TQString nodeName;
    
 
    // Create the new shape to load into
    pShape = new KivioShape();
    
    // Load the type, name, and lineWidth properties
    pShape->m_shapeData.m_shapeType = KivioShapeData::kstPolyline;
    pShape->m_shapeData.m_name = XmlReadString( e, "name", "" );
 
    // Iterate through the nodes loading the various items
    node = e.firstChild();
    while( !node.isNull() )
    {
        nodeName = node.nodeName();
        
        // The polygon is made up of a series of points
        if( nodeName == "KivioPoint" )
        {
            // Allocate a new point, load it, and store it in the list
            pPoint = new KivioPoint();
            pPoint->loadXML( node.toElement() );
            pShape->m_shapeData.m_pOriginalPointList->append( pPoint );
            pPoint = NULL;
        }
        else if( nodeName == "KivioLineStyle" )
        {
            pShape->m_shapeData.m_pLineStyle->loadXML( node.toElement() );
        }
 
        node = node.nextSibling();
    }
    
    return pShape;
}
 

KivioShape *KivioShape::loadShapeRectangle( const TQDomElement &e )
{
    KivioShape *pShape = NULL;
    TQDomNode node;
    TQString nodeName;
    
 
    // Create the new shape to load into
    pShape = new KivioShape();
    
    // Load the type, name, and lineWidth properties
    pShape->m_shapeData.m_shapeType = KivioShapeData::kstRectangle;
    pShape->m_shapeData.m_name = XmlReadString( e, "name", "" );
 
    pShape->m_shapeData.m_position.set( XmlReadFloat( e, "x", 0.0f ), XmlReadFloat( e, "y", 0.0f ) );
    pShape->m_shapeData.m_dimensions.set( XmlReadFloat( e, "w", 72.0f ), XmlReadFloat( e, "h", 72.0f ) );
    
    // Iterate through the nodes loading the various items
    node = e.firstChild();
    while( !node.isNull() )
    {
        nodeName = node.nodeName();
        
        // Read the fill style
        if( nodeName == "KivioFillStyle" )
        {
            pShape->m_shapeData.m_pFillStyle->loadXML( node.toElement() );
        }
        else if( nodeName == "KivioLineStyle" )
        {
            pShape->m_shapeData.m_pLineStyle->loadXML( node.toElement() );
        }
 
        node = node.nextSibling();
    }
    
    return pShape;
}
 
 

KivioShape *KivioShape::loadShapeRoundRectangle( const TQDomElement &e )
{
    KivioShape *pShape = NULL;
    KivioPoint *pPoint = NULL;
    TQDomNode node;
    TQString nodeName;
    
 
    // Create the new shape to load into
    pShape = new KivioShape();
    
    // Load the type, name, and lineWidth properties
    pShape->m_shapeData.m_shapeType = KivioShapeData::kstRoundRectangle;
    pShape->m_shapeData.m_name = XmlReadString( e, "name", "" );
 
    pShape->m_shapeData.m_position.set( XmlReadFloat( e, "x", 0.0f ), XmlReadFloat( e, "y", 0.0f ) );
    pShape->m_shapeData.m_dimensions.set( XmlReadFloat( e, "w", 72.0f ), XmlReadFloat( e, "h", 72.0f ) );
    
    // Read and store the radii of the curves
    pPoint = new KivioPoint(0.0f, 0.0f);
    pPoint->set( XmlReadFloat( e, "r1", 1.0f ), XmlReadFloat( e, "r2", 1.0f ) );
    pShape->m_shapeData.m_pOriginalPointList->append( pPoint );
    
    // Iterate through the nodes loading the various items
    node = e.firstChild();
    while( !node.isNull() )
    {
        nodeName = node.nodeName();
        
        // Read the fill style
        if( nodeName == "KivioFillStyle" )
        {
            pShape->m_shapeData.m_pFillStyle->loadXML( node.toElement() );
        }
        else if( nodeName == "KivioLineStyle" )
        {
            pShape->m_shapeData.m_pLineStyle->loadXML( node.toElement() );
        }
 
        node = node.nextSibling();
    }
    
    return pShape;
}
 

KivioShape *KivioShape::loadShapeTextBox( const TQDomElement &e )
{
    KivioShape *pShape = NULL;
    TQDomNode node;
    TQString nodeName;
    KivioTextStyle ts;
    TQString name;
 
 
    // Create the new shape to load into
    pShape = new KivioShape();
 
    // Load the type and name
    pShape->m_shapeData.setShapeType(KivioShapeData::kstTextBox);
    pShape->m_shapeData.setName( XmlReadString( e, "name", "" ) );
    pShape->m_shapeData.setTextColor(XmlReadColor(e,"color",TQColor(0,0,0)));
 
    pShape->m_shapeData.m_position.set( 
       XmlReadFloat( e, "x", 0.0f ), XmlReadFloat( e, "y", 0.0f ) );
    pShape->m_shapeData.m_dimensions.set( 
       XmlReadFloat( e, "w", 72.0f ), XmlReadFloat( e, "h", 72.0f ) );
 
    // Now look for the KivioTextStyle
    node = e.firstChild();
    while( !node.isNull() )
    {
       nodeName = node.nodeName();
       if( nodeName == "KivioTextStyle" )
       {
      ts.loadXML( node.toElement() );
      pShape->m_shapeData.setTextStyle( &ts );
       }
 
       node = node.nextSibling();
    }
//    TQString text = XmlReadString( e, "text", "" );
//    pShape->m_shapeData.setText( text );
 
 
    return pShape;
}