// *************************************************************************
//
// Copyleft 2004-2007 Bruno PAGES  .
//
// This file is part of the BOUML Uml Toolkit.
//
// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// e-mail : bouml@free.fr
// home   : http://bouml.free.fr
//
// *************************************************************************

#ifdef WIN32
#pragma warning (disable: 4150)
#endif

#include <qpopupmenu.h> 
#include <qpainter.h>
#include <qcursor.h>

#include "BrowserStateAction.h"
#include "BrowserTransition.h"
#include "StateActionData.h"
#include "TransitionData.h"
#include "ReferenceDialog.h"
#include "UmlDrag.h"
#include "UmlPixmap.h"
#include "StateActionDialog.h"
#include "myio.h"
#include "ToolCom.h"
#include "Tool.h"
#include "MenuTitle.h"
#include "strutil.h"
#include "DialogUtil.h"
#include "mu.h"

IdDict<BrowserStateAction> BrowserStateAction::all(257, __FILE__);
QStringList BrowserStateAction::its_default_stereotypes;	// unicode

BrowserStateAction::BrowserStateAction(BrowserNode * p,
				       StateActionData * d, int id)
    : BrowserNode("", p), Labeled<BrowserStateAction>(all, id), def(d) {
  def->set_browser_node(this);
}

BrowserStateAction::BrowserStateAction(int id)
    : BrowserNode(), Labeled<BrowserStateAction>(all, id),
      def(new StateActionData) {
  // not yet read
  def->set_browser_node(this);
}

BrowserStateAction::BrowserStateAction(const BrowserStateAction * model, BrowserNode * p)
    : BrowserNode("", p), Labeled<BrowserStateAction>(all, 0) {
  def = new StateActionData(model->def, this);
  comment = model->comment;
}

BrowserNode * BrowserStateAction::duplicate(BrowserNode * p, QString name) {
  BrowserNode * result = new BrowserStateAction(this, p);
  
  result->set_name((name.isEmpty()) ? get_name() : (const char *) name);
  result->update_stereotype();
  
  return result;
}

BrowserStateAction::~BrowserStateAction() {
  all.remove(get_ident());
  delete def;
}

void BrowserStateAction::clear(bool old)
{
  all.clear(old);
}

void BrowserStateAction::update_idmax_for_root()
{
  all.update_idmax_for_root();
}
    
void BrowserStateAction::referenced_by(QList<BrowserNode> & l) {
  BrowserNode::referenced_by(l);
  BrowserTransition::compute_referenced_by(l, this);
}

void BrowserStateAction::renumber(int phase) {
  if (phase != -1)
    new_ident(phase, all);
}

const QPixmap* BrowserStateAction::pixmap(int) const {
  const char * st = def->get_stereotype();
  
  if (!strcmp(st, "receive-signal")) {
    if (deletedp())
      return DeletedSignalInIcon;
    else if (is_marked)
      return SignalInMarkedIcon;
    else
      return SignalInIcon;
  }
  else if (!strcmp(st, "send-signal")) {
    if (deletedp())
      return DeletedSignalOutIcon;
    else if (is_marked)
      return SignalOutMarkedIcon;
    else
      return SignalOutIcon;
  }
  else if (deletedp())
    return DeletedActionIcon;
  else if (is_marked)
    return ActionMarkedIcon;
  else
    return ActionIcon;
}

BrowserTransition * BrowserStateAction::add_transition(BrowserNode * end) {
  BrowserTransition * result = new BrowserTransition(this, end);
  
  modified();
  return result;
}

BasicData * BrowserStateAction::add_relation(UmlCode, BrowserNode * end) {
  return add_transition(end)->get_data();
}

BrowserStateAction *
BrowserStateAction::add_stateaction(BrowserNode * future_parent)
{
  StateActionData * d = new StateActionData();
  BrowserStateAction * r =
    new BrowserStateAction(future_parent, d);
  
  future_parent->setOpen(TRUE);
  future_parent->package_modified();
  
  return r;
}

void BrowserStateAction::menu() {
  QString s;
  const char * st = def->get_stereotype();
  
  if (!strcmp(st, "receive-signal"))
    s = "receive-signal action";
  else if (!strcmp(st, "send-signal"))
    s = "send-signal action";
  else
    s = "action";
  
  QPopupMenu m(0, "action");
  QPopupMenu toolm(0);
  
  m.insertItem(new MenuTitle(s, m.font()), -1);
  m.insertSeparator();
  if (!deletedp()) {
    m.setWhatsThis(m.insertItem("Edit", 1),
		   "to edit the <em>" + s + "</em>, \
a double click with the left mouse button does the same thing");
    if (!is_read_only) {
      m.setWhatsThis(m.insertItem("Duplicate", 2),
		     "to copy the <em>" + s + "</em> in a new one");
      m.insertSeparator();
      if (edition_number == 0)
	m.setWhatsThis(m.insertItem("Delete", 3),
		       "to delete the <em>" + s + "</em>. \
Note that you can undelete it after");
    }
    m.setWhatsThis(m.insertItem("Referenced by", 5),
		   "to know who reference the <i>" + s + "</i> \
through a transition");
    mark_menu(m, s, 90);
    if ((edition_number == 0) &&
	Tool::menu_insert(&toolm, get_type(), 100)) {
      m.insertSeparator();
      m.insertItem("Tool", &toolm);
    }
  }
  else if (!is_read_only && (edition_number == 0)) {
    m.setWhatsThis(m.insertItem("Undelete", 4),
		   "to undelete the <em>" + s + "</em>");
  }
  
  exec_menu_choice(m.exec(QCursor::pos()));
}

void BrowserStateAction::exec_menu_choice(int rank) {
  switch (rank) {
  case 1:
    open(TRUE);
    return;
  case 2:
    duplicate((BrowserNode *) parent())->select_in_browser();
    break;
  case 3:
    delete_it();
    break;
  case 4:
    BrowserNode::undelete(FALSE);
    break;
  case 5:
    ReferenceDialog::show(this);
    return;
  default:
    if (rank >= 100)
      ToolCom::run(Tool::command(rank - 100), this);
    else
      mark_management(rank - 90);
    return;
  }
  ((BrowserNode *) parent())->modified();
  package_modified();
}

void BrowserStateAction::apply_shortcut(QString s) {
  int choice = -1;

  if (!deletedp()) {
    if (s == "Edit")
      choice = 1;
    if (!is_read_only) {
      if (s == "Duplicate")
	choice = 2;
      if (edition_number == 0)
	if (s == "Delete")
	  choice = 3;
    }
    if (s == "Referenced by")
      choice = 5;
    mark_shortcut(s, choice, 90);
    if (edition_number == 0)
      Tool::shortcut(s, choice, get_type(), 100);
  }
  else if (!is_read_only && (edition_number == 0)) {
    if (s == "Undelete")
      choice = 4;
  }
  
  exec_menu_choice(choice);
}

void BrowserStateAction::open(bool) {
  if (!is_edited) {
    (new StateActionDialog(def))->show();
  }
}

void BrowserStateAction::modified() {
  repaint();
  ((BrowserNode *) parent())->modified();
  // to update drawing
  def->modified();
}

UmlCode BrowserStateAction::get_type() const {
  return UmlStateAction;
}

int BrowserStateAction::get_identifier() const {
  return get_ident();
}

BasicData * BrowserStateAction::get_data() const {
  return def;
}

bool BrowserStateAction::allow_empty() const {
  return TRUE;
}

QString BrowserStateAction::full_name(bool rev, bool) const {
  QString p = ((BrowserNode *) parent())->full_name(FALSE, FALSE);
  QString s = name;

  if (s.isEmpty()) {
    s = def->get_stereotype();

    if (s.isEmpty())
      s = "<anonymous state action>";
    else
      s = "<anonymous " + s + ">";
  }

  return (rev) ? s + "   [" + p + "]"
	       : p + "::" + s;
}

void BrowserStateAction::init()
{
  its_default_stereotypes.clear();
  its_default_stereotypes.append("send-signal");
  its_default_stereotypes.append("receive-signal");
}

// unicode
const QStringList & BrowserStateAction::default_stereotypes()
{
  return its_default_stereotypes;
}

bool BrowserStateAction::tool_cmd(ToolCom * com, const char * args) {
  switch ((unsigned char) args[-1]) {
  case createCmd: 
    {
      bool ok = TRUE;
      
      if (is_read_only && !root_permission())
	ok = FALSE;
      else {
	UmlCode k = com->get_kind(args);
	
	switch (k) {
	case UmlTransition:
	  {
	    BrowserNode * end = (BrowserNode *) com->get_id(args);
	    k = end->get_type();
	    
	    if ((k == UmlState) ||
		(k == UmlStateAction) ||
		IsaPseudoState(k))
	      (add_transition(end))->write_id(com);
	    else
	      ok = FALSE;
	  }
	  break;
	default:
	  ok = FALSE;
	}
      }
      
      if (! ok)
	com->write_id(0);
      else
	package_modified();
      
      return TRUE;
    }
  default:
    return (def->tool_cmd(com, args, this, comment) ||
	    BrowserNode::tool_cmd(com, args));
  }
}

void BrowserStateAction::DragMoveEvent(QDragMoveEvent * e) {
  if (UmlDrag::canDecode(e, BrowserTransition::drag_key(this)))
    e->accept();
  else
    ((BrowserNode *) parent())->DragMoveInsideEvent(e);
}

void BrowserStateAction::DropEvent(QDropEvent * e) {
  DropAfterEvent(e, 0);
}

void BrowserStateAction::DragMoveInsideEvent(QDragMoveEvent * e) {
  if (UmlDrag::canDecode(e, BrowserTransition::drag_key(this)))
    e->accept();
  else
    e->ignore();
}

void BrowserStateAction::DropAfterEvent(QDropEvent * e, BrowserNode * after) {
  BrowserNode * bn;
  
  if ((((bn = UmlDrag::decode(e, BrowserTransition::drag_key(this))) != 0)) &&
      (bn != after) && (bn != this)) {
    if (may_contains(bn, FALSE)) 
      move(bn, after);
    else {
      msg_critical("Error", "Forbiden");
      e->ignore();
    }
  }
  else if ((bn == 0) && (after == 0))
    ((BrowserNode *) parent())->DropAfterEvent(e, this);
  else
    e->ignore();
}

QString BrowserStateAction::drag_key() const {
  return QString::number(UmlStateAction)
    + "#" + QString::number((unsigned long) parent());
}

QString BrowserStateAction::drag_postfix() const {
  return "#" + QString::number((unsigned long) parent());
}

QString BrowserStateAction::drag_key(BrowserNode * p)
{
  return QString::number(UmlStateAction)
    + "#" + QString::number((unsigned long) p);
}

void BrowserStateAction::save_stereotypes(QTextStream & st)
{
  nl_indent(st);
  st << "stateaction_stereotypes ";
  save_unicode_string_list(its_default_stereotypes, st);
}

void BrowserStateAction::read_stereotypes(char * & st, char * & k)
{
  if (!strcmp(k, "stateaction_stereotypes")) {
    read_unicode_string_list(its_default_stereotypes, st);
    k = read_keyword(st);
  }
  else
    init();
}

void BrowserStateAction::save(QTextStream & st, bool ref, QString & warning) {
  if (ref)
    st << "stateaction_ref " << get_ident();
  else {
    nl_indent(st);
    st << "stateaction " << get_ident();
    indent(+1);
    def->save(st, warning);
    BrowserNode::save(st);
    
    // saves the sub elts
      
    QListViewItem * child = firstChild();
    
    if (child != 0) {
      for (;;) {
	if (! ((BrowserNode *) child)->deletedp()) {
	  ((BrowserNode *) child)->save(st, FALSE, warning);
	  
	  child = child->nextSibling();
	  if (child != 0)
	    st << '\n';
	  else
	    break;
	}
	else if ((child = child->nextSibling()) == 0)
	  break;
      }
    }
    
    indent(-1);
    nl_indent(st);
    st << "end";
    
    // for saveAs
    if (! is_api_base())
      is_read_only = FALSE;
  }
}

BrowserStateAction * BrowserStateAction::read_ref(char * & st)
{
  read_keyword(st, "stateaction_ref");
  
  int id = read_id(st);
  BrowserStateAction * result = all[id];
  
  return (result == 0)
    ? new BrowserStateAction(id)
    : result;
}

BrowserStateAction * BrowserStateAction::read(char * & st, char * k,
					BrowserNode * parent)
{
  BrowserStateAction * result;
  int id;
  
  if (!strcmp(k, "stateaction_ref")) {
    id = read_id(st);
    result = all[id];
    
    return (result == 0)
      ? new BrowserStateAction(id)
      : result;
  }
  else if (!strcmp(k, "stateaction")) {
    id = read_id(st);
    result = all[id];

    BrowserStateAction * already_exist = 0;
    
    if (result == 0)
      result = new BrowserStateAction(parent, new StateActionData, id);
    else if (result->is_defined) {
      already_exist = result;
      result = new BrowserStateAction(parent, new StateActionData, id);
    }
    else
      result->set_parent(parent);
    
    k = read_keyword(st);
    result->def->read(st, k);
    
    if (already_exist != 0) {
      already_exist->must_change_id(all);
      already_exist->unconsistent_fixed("state action", result);
    }

    result->is_defined = TRUE;
    result->BrowserNode::read(st, k);
    
    result->is_read_only = !in_import() && read_only_file() || 
      (user_id() != 0) && result->is_api_base();
    
    if (strcmp(k, "end")) {
      while (BrowserTransition::read(st, k, result))
	k = read_keyword(st);
      if (strcmp(k, "end"))
	wrong_keyword(k, "end");
    }
    
    return result;
  }
  else
    return 0;
}

BrowserNode * BrowserStateAction::get_it(const char * k, int id)
{
  // transition managed in state
  return (!strcmp(k, "stateaction_ref")) ? all[id] : 0;
}