factory.cpp

/* This file is part of the KDE project
   Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
   Copyright (C) 2004  Alexander Dymo <cloudtemple@mskat.net>
 
   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 "factory.h"
#include "property.h"
#include "customproperty.h"
 
#include "booledit.h"
#include "combobox.h"
#include "coloredit.h"
#include "cursoredit.h"
#include "dateedit.h"
#include "datetimeedit.h"
#include "dummywidget.h"
#include "fontedit.h"
#include "linestyleedit.h"
#include "pixmapedit.h"
#include "pointedit.h"
#include "rectedit.h"
#include "sizeedit.h"
#include "sizepolicyedit.h"
#include "spinbox.h"
#include "stringlistedit.h"
#include "stringedit.h"
#include "symbolcombo.h"
#include "timeedit.h"
#include "urledit.h"
 
#include <tqvaluelist.h>
#include <tqintdict.h>
 
#include <kdebug.h>
 
static KStaticDeleter<KoProperty::FactoryManager> m_managerDeleter;
static KoProperty::FactoryManager* m_manager = 0;
 
namespace KoProperty {
 
CustomPropertyFactory::CustomPropertyFactory(TQObject *parent)
 : TQObject(parent)
{
}
 
CustomPropertyFactory::~CustomPropertyFactory()
{
}
 
 
class FactoryManagerPrivate
{
    public:
        FactoryManagerPrivate() {}
        ~FactoryManagerPrivate() {}
 
        //registered widgets for property types
        TQIntDict<CustomPropertyFactory> registeredWidgets;
        TQIntDict<CustomPropertyFactory> registeredCustomProperties;
};
}
 
using namespace KoProperty;
 
FactoryManager::FactoryManager()
: TQObject(0, "KoProperty::FactoryManager")
{
    d = new FactoryManagerPrivate();
}
 
FactoryManager::~FactoryManager()
{
    delete d;
}
 
FactoryManager*
FactoryManager::self()
{
    if(!m_manager)
        m_managerDeleter.setObject( m_manager, new FactoryManager() );
    return m_manager;
}
 
 
void
FactoryManager::registerFactoryForEditor(int editorType, CustomPropertyFactory *widgetFactory)
{
    if(!widgetFactory)
        return;
    if(d->registeredWidgets.find(editorType))
        kopropertywarn << "FactoryManager::registerFactoryForEditor(): "
        "Overriding already registered custom widget type \"" << editorType << "\"" << endl;
    d->registeredWidgets.replace(editorType, widgetFactory);
}
 
void
FactoryManager::registerFactoryForEditors(const TQValueList<int> &editorTypes, CustomPropertyFactory *factory)
{
    TQValueList<int>::ConstIterator endIt = editorTypes.constEnd();
    for(TQValueList<int>::ConstIterator it = editorTypes.constBegin(); it != endIt; ++it)
        registerFactoryForEditor(*it, factory);
}
 
CustomPropertyFactory *
FactoryManager::factoryForEditorType(int type)
{
    return d->registeredWidgets.find(type);
}
 
Widget*
FactoryManager::createWidgetForProperty(Property *property)
{
    if(!property)
        return 0;
 
    const int type = property->type();
 
    CustomPropertyFactory *factory = d->registeredWidgets.find(type);
    if (factory)
        return factory->createCustomWidget(property);
 
    //handle combobox-based widgets:
    if (type==Cursor)
        return new CursorEdit(property);
 
    if (property->listData()) {
        return new ComboBox(property);
    }
 
    //handle other widget types:
    switch(type)
    {
        // Default TQVariant types
        case String:
        case CString:
            return new StringEdit(property);
        case Rect_X:
        case Rect_Y:
        case Rect_Width:
        case Rect_Height:
        case Point_X:
        case Point_Y:
        case Size_Width:
        case Size_Height:
        case SizePolicy_HorStretch:
        case SizePolicy_VerStretch:
        case Integer:
            return new IntEdit(property);
        case Double:
            return new DoubleEdit(property);
        case Boolean: {
            //boolean editors can optionally accept 3rd state:
            TQVariant thirdState = property ? property->option("3rdState") : TQVariant();
            if (thirdState.toString().isEmpty())
                return new BoolEdit(property);
            else
                return new ThreeStateBoolEdit(property);
        }
        case Date:
            return new DateEdit(property);
        case Time:
            return new TimeEdit(property);
        case DateTime:
            return new DateTimeEdit(property);
        case StringList:
            return new StringListEdit(property);
        case Color:
            return new ColorButton(property);
        case Font:
            return new FontEdit(property);
        case Pixmap:
            return new PixmapEdit(property);
 
        // Other default types
        case Symbol:
            return new SymbolCombo(property);
        //case FontName:
        //  return new FontCombo(property);
        case FileURL:
        case DirectoryURL:
            return new URLEdit(property);
        case LineStyle:
            return new LineStyleEdit(property);
 
        // Composed types
        case Size:
            return new SizeEdit(property);
        case Point:
            return new PointEdit(property);
        case Rect:
            return new RectEdit(property);
        case SizePolicy:
            return new SizePolicyEdit(property);
 
        case List:
        case Map:
        default:
            kopropertywarn << "No editor for property " << property->name() << " of type " << property->type() << endl;
            return new DummyWidget(property);
    }
}
 
 
void
FactoryManager::registerFactoryForProperty(int propertyType, CustomPropertyFactory *factory)
{
    if(!factory)
        return;
    if(d->registeredCustomProperties.find(propertyType))
        kopropertywarn << "FactoryManager::registerFactoryForProperty(): "
        "Overriding already registered custom property type \"" << propertyType << "\"" << endl;
 
    d->registeredCustomProperties.replace(propertyType, factory);
}
 
void
FactoryManager::registerFactoryForProperties(const TQValueList<int> &propertyTypes, 
    CustomPropertyFactory *factory)
{
    TQValueList<int>::ConstIterator endIt = propertyTypes.constEnd();
    for(TQValueList<int>::ConstIterator it = propertyTypes.constBegin(); it != endIt; ++it)
        registerFactoryForProperty(*it, factory);
}
 
CustomProperty*
FactoryManager::createCustomProperty(Property *parent)
{
    const int type = parent->type();
    CustomPropertyFactory *factory = d->registeredWidgets.find(type);
    if (factory)
        return factory->createCustomProperty(parent);
 
    switch(type) {
        case Size: case Size_Width: case Size_Height:
            return new SizeCustomProperty(parent);
        case Point: case Point_X: case Point_Y:
            return new PointCustomProperty(parent);
        case Rect: case Rect_X: case Rect_Y: case Rect_Width: case Rect_Height:
            return new RectCustomProperty(parent);
        case SizePolicy: case SizePolicy_HorStretch: case SizePolicy_VerStretch:
        case SizePolicy_HorData: case SizePolicy_VerData:
            return new SizePolicyCustomProperty(parent);
        default:
            return 0;
    }
}