spring.cpp

/* This file is part of the KDE project
   Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
   Copyright (C) 2005 Jaroslaw Staniek <js@iidea.pl>
 
   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 <tqsizepolicy.h>
#include <tqpainter.h>
#include <tqdom.h>
#include <tqvariant.h>
 
#include <kdebug.h>
 
#include "objecttree.h"
#include "container.h"
#include "form.h"
#include "formIO.h"
#include "widgetlibrary.h"
 
#include "spring.h"
 
Spring::Spring(TQWidget *parent, const char *name)
  : TQWidget(parent, name)
{
    m_edit = true;
    m_orient =TQt::Horizontal;
    setSizeType((SizeType)TQSizePolicy::Expanding);
}
 
void
Spring::setOrientation(TQt::Orientation orient)
{
    SizeType type = sizeType();
    m_orient = orient;
    setSizeType(type);
    repaint();
}
 
Spring::SizeType
Spring::sizeType() const
{
    if(m_orient ==TQt::Vertical)
        return (SizeType)sizePolicy().verData();
    else
        return (SizeType)sizePolicy().horData();
}
 
void
Spring::setSizeType(SizeType size)
{
    if(m_orient ==TQt::Vertical)
        setSizePolicy(TQSizePolicy::Minimum, (TQSizePolicy::SizeType)size);
    else
        setSizePolicy( (TQSizePolicy::SizeType)size, TQSizePolicy::Minimum);
}
 
void
Spring::paintEvent(TQPaintEvent *ev)
{
    if(!m_edit)
        return;
 
    TQPainter p(this);
    if(!ev->erased())
        p.eraseRect(0,0,width(), height());
    p.setPen(TQPen(TQt::white, 1));
    p.setRasterOp(TQt::XorROP);
    TQPointArray pa(4);
    if(m_orient ==TQt::Vertical) {
        uint part = (height()+16) / 16;
        if (part<3)
            part=3;
        uint w = width()-1;
        uint offset = 0;
        for (uint i=0; i<4; i++, offset+=(part*4)) {
            pa.putPoints(0, 4,
                w/2,offset, w,offset+part, w,offset+part, w/2,offset+part*2);
            p.drawCubicBezier(pa, 0);
            pa.putPoints(0, 4,
                w/2,offset+part*2, 0,offset+part*3, 0,offset+part*3, w/2,offset+part*4);
            p.drawCubicBezier(pa, 0);
        }
    }
    else {
        uint part = (width()+16) / 16;
        if (part<3)
            part=3;
        uint h = height()-1;
        uint offset = 0;
        for (uint i=0; i<4; i++, offset+=(part*4)) {
            pa.putPoints(0, 4,
                offset,h/2, offset+part,0, offset+part,0, offset+part*2,h/2);
            p.drawCubicBezier(pa, 0);
            pa.putPoints(0, 4,
                offset+part*2,h/2, offset+part*3,h, offset+part*3,h, offset+part*4,h/2);
            p.drawCubicBezier(pa, 0);
        }
    }
}
 
bool
Spring::isPropertyVisible(const TQCString &name)
{
    if((name == "name") || (name == "sizeType") || (name == "orientation") || (name == "geometry"))
        return true;
 
    return false;
}
 
 
void
Spring::saveSpring(KFormDesigner::ObjectTreeItem *item, TQDomElement &parentNode, TQDomDocument &domDoc, bool insideGridLayout)
{
    TQDomElement tclass = domDoc.createElement("spacer");
    parentNode.appendChild(tclass);
 
    if(insideGridLayout)
    {
        tclass.setAttribute("row", item->gridRow());
        tclass.setAttribute("column", item->gridCol());
        if(item->spanMultipleCells())
        {
            tclass.setAttribute("rowspan", item->gridRowSpan());
            tclass.setAttribute("colspan", item->gridColSpan());
        }
    }
 
    KFormDesigner::FormIO::savePropertyValue(tclass, domDoc, "name", item->widget()->property("name"), item->widget());
 
    if(parentNode.tagName() == "widget")
        KFormDesigner::FormIO::savePropertyValue(tclass, domDoc, "geometry", item->widget()->property("geometry"), item->widget());
 
    if(!item->widget()->sizeHint().isValid())
        KFormDesigner::FormIO::savePropertyValue(tclass, domDoc, "sizeHint", item->widget()->property("size"), item->widget());
    else
        KFormDesigner::FormIO::savePropertyValue(tclass, domDoc, "sizeHint", item->widget()->property("sizeHint"), item->widget());
 
    KFormDesigner::FormIO::savePropertyValue(tclass, domDoc, "orientation", item->widget()->property("orientation"), item->widget());
    KFormDesigner::FormIO::savePropertyValue(tclass, domDoc, "sizeType", item->widget()->property("sizeType"), item->widget());
}
 
 
#include "spring.moc"