/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            widgetbuilder.cc
 *
 *  Wed Jun 18 08:03:04 CEST 2008
 *  Copyright 2008 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro 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.
 *
 *  Pracro 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 Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "widgetbuilder.h"
#include <QLayout>
#include "widgets.h"

QVector< Widget* > widgetBuilder(QDomNode xml_node, QWidget *parent, 
                                 MacroWindow *macrowindow, bool watchChanges)
{
  QVector< Widget* > widgets;

  QDomElement xml_elem = xml_node.toElement();

  if(xml_elem.hasAttribute("prefilled") &&
     xml_elem.attribute("prefilled") != "pracro") {
    macrowindow->macroChanged();
  }

  QWidget *widget = NULL;
  if(xml_elem.tagName() == "spacer") {
    if(parent && parent->layout()) { 
      ((QBoxLayout*)parent->layout())->addStretch();
    }
  } else if(xml_elem.tagName() == "frame") {
    if(xml_elem.hasAttribute("caption")) {
      GroupBox *frame = new GroupBox(xml_elem, macrowindow);
      widgets.push_back(frame);
      widget = frame;
    } else {
      Frame *frame = new Frame(xml_elem, macrowindow);
      widgets.push_back(frame);
      widget = frame;
    }

  } else if(xml_elem.tagName() == "label") {
    Label *label = new Label(xml_elem, macrowindow);
    widget = label;

  } else if(xml_elem.tagName() == "lineedit") {
    LineEdit *lineedit = new LineEdit(xml_elem, macrowindow);
    widgets.push_back(lineedit);
    widget = lineedit;
    if(watchChanges)
      lineedit->connectFrom(SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));

  } else if(xml_elem.tagName() == "datetime") {
    DateTime *datetime = new DateTime(xml_elem, macrowindow);
    widgets.push_back(datetime);
    widget = datetime;
    if(watchChanges)
      datetime->connectFrom(SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));

  } else if(xml_elem.tagName() == "button") {
    Button *button = new Button(xml_elem, macrowindow);
    //macrowindow->connect(pushbutton, SIGNAL(act_continue()), main, SLOT(get_macro()));
    QObject::connect(button, SIGNAL(act_commit()), macrowindow, SLOT(commit()));
    QObject::connect(button, SIGNAL(act_reset()), macrowindow, SLOT(reset()));
    QObject::connect(button, SIGNAL(act_cancel()), macrowindow, SLOT(cancel()));
    QObject::connect(button, SIGNAL(act_continue(QString)), macrowindow, SLOT(cont(QString)));
    QObject::connect(button, SIGNAL(act_continue_nocommit(QString)),
                     macrowindow, SLOT(cont_nocommit(QString)));
    QObject::connect(macrowindow, SIGNAL(macroHasChanged()), button, SLOT(do_enable()));
    widget = button;

  } else if(xml_elem.tagName() == "textedit") {
    TextEdit *textedit = new TextEdit(xml_elem, macrowindow);
    widgets.push_back(textedit);
    widget = textedit;
    if(watchChanges)
      QObject::connect(textedit, SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));

  } else if(xml_elem.tagName() == "checkbox") {
    CheckBox *checkbox = new CheckBox(xml_elem, macrowindow);
    widgets.push_back(checkbox);
    widget = checkbox;
    if(watchChanges)
      QObject::connect(checkbox, SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));

  } else if(xml_elem.tagName() == "radiobuttons") {
    RadioButtons *radiobuttons = new RadioButtons(xml_elem, macrowindow);
    widgets.push_back(radiobuttons);
    widget = radiobuttons;
    if(watchChanges)
      QObject::connect(radiobuttons, SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));
    //return; // Don't iterate children

  } else if(xml_elem.tagName() == "combobox") {
    ComboBox *combobox = new ComboBox(xml_elem, macrowindow);
    widgets.push_back(combobox);
    widget = combobox;
    if(watchChanges)
      QObject::connect(combobox, SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));
    //return; // Don't iterate children

  } else if(xml_elem.tagName() == "dbwidget") {
    DBWidget *dbwidget = new DBWidget(xml_elem, macrowindow);
    widgets.push_back(dbwidget);
    widget = dbwidget;
    if(watchChanges)
      QObject::connect(dbwidget, SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));

  } else if(xml_elem.tagName() == "listbox") {
    ListBox *listbox = new ListBox(xml_elem, macrowindow);
    widgets.push_back(listbox);
    widget = listbox;
    if(watchChanges)
      QObject::connect(listbox, SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));
    //return; // Don't iterate children

  } else if(xml_elem.tagName() == "multilist") {
    MultiList *multilist = new MultiList(xml_elem, macrowindow);
    widgets.push_back(multilist);
    widget = multilist;
    if(watchChanges)
      QObject::connect(multilist, SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));

    if(parent && widget && parent->layout()) parent->layout()->addWidget(widget);
    if(widget) widget->show();
    
    return widgets; // Don't iterate children

  } else if(xml_elem.tagName() == "altcombobox") {
    AltComboBox *altcombobox = new AltComboBox(xml_elem, macrowindow);
    widgets.push_back(altcombobox);
    widget = altcombobox;
    if(watchChanges)
      QObject::connect(altcombobox, SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));

    if(parent && widget && parent->layout()) parent->layout()->addWidget(widget);
    if(widget) widget->show();
    
    return widgets; // Don't iterate children
  } else if(xml_elem.tagName() == "metawidget") {
    MetaWidget *metawidget = new MetaWidget(xml_elem, macrowindow);
    widgets.push_back(metawidget);
    widget = metawidget;
    if(watchChanges)
      QObject::connect(metawidget, SIGNAL(wasChanged()), macrowindow, SLOT(macroChanged()));

    if(parent && widget && parent->layout()) parent->layout()->addWidget(widget);
    if(widget) widget->show();
    
    return widgets; // Don't iterate children
  }

  QDomNodeList children = xml_node.childNodes();

  for (int i=0; i<children.count();i++) {
    QDomNode child = children.at(i);
    widgets += widgetBuilder(child, widget, macrowindow, watchChanges);
  }

  if(parent && widget && parent->layout()) parent->layout()->addWidget(widget);
  if(widget) widget->show();

  return widgets;
}

void setValues(QDomNode xml_node, MacroWindow *macrowindow)
{
  QDomElement xml_elem = xml_node.toElement();

  if(xml_elem.tagName() == "item" ||
     xml_elem.tagName() == "radiobutton") return;

  if(xml_elem.hasAttribute("name") && xml_elem.hasAttribute("value")) {
    Widget *widget = macrowindow->getWidget(xml_elem.attribute("name"));
    if(widget && widget->hasInitialValue() == false) // Don't set the value if it is already set indirectly (altcombobox)
      widget->setValue(xml_elem.attribute("value"), xml_elem.attribute("prefilled", ""));
  }

  QDomNodeList children = xml_node.childNodes();

  for (int i=0; i<children.count();i++) {
    QDomNode child = children.at(i);
    setValues(child, macrowindow);
  }
}