formIO.h

/* This file is part of the KDE project
   Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
   Copyright (C) 2005-2007 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.
*/
 
#ifndef FORMIO_H
#define FORMIO_H
 
#include <tqobject.h>
#include <tqdict.h>
#include <tqstring.h>
#include <tqwidget.h>
#include <tqmap.h>
 
class TQString;
class TQDomElement;
class TQDomNode;
class TQDomDocument;
class TQDomText;
class TQVariant;
class TQLabel;

class KFORMEDITOR_EXPORT CustomWidget : public TQWidget
{
    TQ_OBJECT
  
 
    public:
        CustomWidget(const TQCString &className, TQWidget *parent, const char *name);
        virtual ~CustomWidget();
 
        virtual void paintEvent(TQPaintEvent *ev);
 
    private:
        TQCString m_className;
};
 
namespace KFormDesigner {
 
class WidgetPropertySet;
class Form;
class ObjectTreeItem;
class Container;
class WidgetLibrary;

#define KFORMDESIGNER_VERSION 2

KFORMEDITOR_EXPORT uint version();

class KFORMEDITOR_EXPORT FormIO : public TQObject
{
    TQ_OBJECT
  
 
    public:
        FormIO();
        ~FormIO();

        static bool saveFormToDom(Form *form, TQDomDocument &domDoc);

        static bool saveFormToFile(Form *form, const TQString &filename=TQString());

        static bool saveFormToString(Form *form, TQString &dest, int indent = 0);

        static bool saveFormToByteArray(Form *form, TQByteArray &dest);

        static bool loadFormFromDom(Form *form, TQWidget *container, TQDomDocument &domDoc);

        static bool loadFormFromByteArray(Form *form, TQWidget *container, TQByteArray &src,
            bool preview=false);
 
        static bool loadFormFromString(Form *form, TQWidget *container, TQString &src, bool preview=false);

        static bool loadFormFromFile(Form *form, TQWidget *container, const TQString &filename=TQString());

        static void saveWidget(ObjectTreeItem *item, TQDomElement &parent, TQDomDocument &domDoc,
            bool insideGridLayout=false);

        static void cleanClipboard(TQDomElement &uiElement);

        static void loadWidget(Container *container,
            const TQDomElement &el, TQWidget *parent=0);

        static void savePropertyElement(TQDomElement &parentNode, TQDomDocument &domDoc, const TQString &tagName,
            const TQString &property, const TQVariant &value);

        static TQVariant readPropertyValue(TQDomNode node, TQObject *obj, const TQString &name);

        static void savePropertyValue(TQDomElement &parentNode, TQDomDocument &parent, const char *name,
            const TQVariant &value, TQWidget *w, WidgetLibrary *lib=0);
 
    protected:
        static void writeVariant(TQDomDocument &parent, TQDomElement &parentNode, TQVariant value);

        static void createToplevelWidget(Form *form, TQWidget *container, TQDomElement &element);

        static TQString saveImage(TQDomDocument &domDoc, const TQPixmap &pixmap);

        static TQPixmap loadImage(TQDomDocument domDoc, const TQString& name);

        static void readChildNodes(ObjectTreeItem *tree, Container *container, 
            const TQDomElement &el, TQWidget *w);

        static void addIncludeFileName(const TQString &include, TQDomDocument &domDoc);
 
    private:
        // This dict stores buddies associations until the Form is completely loaded.
        static TQDict<TQLabel>  *m_buddies;

        //static TQWidgdet  *m_currentWidget;
        static ObjectTreeItem   *m_currentItem;
        static Form *m_currentForm;
        static bool m_savePixmapsInline;
};
 
}
 
#endif