/*  This file is part of the KDE libraries and the Kate part.
 *
 *  Copyright (C) 2001-2010 Christoph Cullmann <cullmann@kde.org>
 *
 *  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.
 */

//BEGIN Includes
#include "katemodeconfigpage.h"
#include "moc_katemodeconfigpage.cpp"

#include "katedocument.h"
#include "kateconfig.h"
#include "kateview.h"
#include "kateglobal.h"
#include "kateautoindent.h"
#include "katesyntaxmanager.h"
#include "katesyntaxdocument.h"

#include "ui_filetypeconfigwidget.h"

#include <kconfig.h>
#include <kmimetype.h>
#include <kmimetypechooser.h>
#include <kdebug.h>
#include <kicon.h>
#include <knuminput.h>
#include <klocale.h>
#include <kmenu.h>

#include <QtCore/QRegExp>
#include <QtGui/QCheckBox>
#include <QtGui/QComboBox>
#include <QtGui/QGroupBox>

#include <QtGui/QLabel>
#include <QtGui/QLayout>
#include <QtGui/QPushButton>
#include <QtGui/QToolButton>
#include <kvbox.h>

#define KATE_FT_HOWMANY 1024
//END Includes

ModeConfigPage::ModeConfigPage( QWidget *parent )
  : KateConfigPage( parent )
{
  m_lastType = -1;

  // This will let us have more separation between this page and
  // the KTabWidget edge (ereslibre)
  QVBoxLayout *layout = new QVBoxLayout;
  QWidget *newWidget = new QWidget(this);

  ui = new Ui::FileTypeConfigWidget();
  ui->setupUi( newWidget );

 ui->cmbHl->addItem(i18n("<Unchanged>"), QVariant(""));
 for( int i = 0; i < KateHlManager::self()->highlights(); i++) {
    if (KateHlManager::self()->hlSection(i).length() > 0)
      ui->cmbHl->addItem(KateHlManager::self()->hlSection(i) + QString ("/")
          + KateHlManager::self()->hlNameTranslated(i), QVariant(KateHlManager::self()->hlName(i)));
    else
      ui->cmbHl->addItem(KateHlManager::self()->hlNameTranslated(i), QVariant(KateHlManager::self()->hlName(i)));
  }

  QStringList indentationModes;
  indentationModes << i18n ("Use Default");
  indentationModes << KateAutoIndent::listModes();
  ui->cmbIndenter->addItems (indentationModes);

  connect( ui->cmbFiletypes, SIGNAL(activated(int)), this, SLOT(typeChanged(int)) );
  connect( ui->btnNew, SIGNAL(clicked()), this, SLOT(newType()) );
  connect( ui->btnDelete, SIGNAL(clicked()), this, SLOT(deleteType()) );
  ui->btnMimeTypes->setIcon(KIcon("tools-wizard"));
  connect(ui->btnMimeTypes, SIGNAL(clicked()), this, SLOT(showMTDlg()));

  reload();

  connect( ui->edtName, SIGNAL(textChanged(QString)), this, SLOT(slotChanged()) );
  connect( ui->edtSection, SIGNAL(textChanged(QString)), this, SLOT(slotChanged()) );
  connect( ui->edtVariables, SIGNAL(textChanged(QString)), this, SLOT(slotChanged()) );
  connect( ui->edtFileExtensions, SIGNAL(textChanged(QString)), this, SLOT(slotChanged()) );
  connect( ui->edtMimeTypes, SIGNAL(textChanged(QString)), this, SLOT(slotChanged()) );
  connect( ui->sbPriority, SIGNAL(valueChanged(int)), this, SLOT(slotChanged()) );
  connect( ui->cmbHl, SIGNAL(activated(int)), this, SLOT(slotChanged()) );
  connect( ui->cmbIndenter, SIGNAL(activated(int)), this, SLOT(slotChanged()) );

  layout->addWidget(newWidget);
  setLayout(layout);
}

ModeConfigPage::~ModeConfigPage ()
{
  qDeleteAll (m_types);
  delete ui;
}

void ModeConfigPage::apply()
{
  if (!hasChanged())
    return;

  save ();

  KateGlobal::self()->modeManager()->save(m_types);
}

void ModeConfigPage::reload()
{
  qDeleteAll (m_types);
  m_types.clear();

  // deep copy...
  foreach (KateFileType *type, KateGlobal::self()->modeManager()->list())
  {
    KateFileType *t = new KateFileType ();
    *t = *type;
    m_types.append (t);
  }

  update ();
}

void ModeConfigPage::reset()
{
  reload ();
}

void ModeConfigPage::defaults()
{
  reload ();
}

void ModeConfigPage::update ()
{
  m_lastType = -1;

  ui->cmbFiletypes->clear ();

  foreach (KateFileType *type, m_types) {
    if (!type->sectionTranslated().isEmpty())
      ui->cmbFiletypes->addItem(type->sectionTranslated() + QString ("/") + type->nameTranslated());
    else
      ui->cmbFiletypes->addItem(type->nameTranslated());
  }

  // get current filetype from active view via the host application
  int currentIndex = 0;
  KTextEditor::MdiContainer *iface = qobject_cast<KTextEditor::MdiContainer*>(KateGlobal::self()->container());
  if (iface) {
    KateView *kv = qobject_cast<KateView*>(iface->activeView());
    if (kv) {
      const QString filetypeName = kv->doc()->fileType();
      for (int i = 0; i < m_types.size(); ++i) {
        if (filetypeName == m_types[i]->name) {
          currentIndex = i;
          break;
        }
      }
    }
  }
  ui->cmbFiletypes->setCurrentIndex (currentIndex);
  typeChanged (currentIndex);

  ui->cmbFiletypes->setEnabled (ui->cmbFiletypes->count() > 0);
}

void ModeConfigPage::deleteType ()
{
  int type = ui->cmbFiletypes->currentIndex ();

  if (type > -1 && type < m_types.count())
  {
    delete m_types[type];
    m_types.removeAt(type);
    update ();
  }
}

void ModeConfigPage::newType ()
{
  QString newN = i18n("New Filetype");

  for (int i = 0; i < m_types.count(); ++i) {
    KateFileType *type = m_types.at(i);
    if (type->name == newN)
    {
      ui->cmbFiletypes->setCurrentIndex (i);
      typeChanged (i);
      return;
    }
  }

  KateFileType *newT = new KateFileType ();
  newT->priority = 0;
  newT->name = newN;
  newT->hlGenerated = false;

  m_types.prepend (newT);

  update ();
}

void ModeConfigPage::save ()
{
  if (m_lastType != -1)
  {
    if (!m_types[m_lastType]->hlGenerated) {
      m_types[m_lastType]->name = ui->edtName->text ();
      m_types[m_lastType]->section = ui->edtSection->text ();
    }
    m_types[m_lastType]->varLine = ui->edtVariables->text ();
    m_types[m_lastType]->wildcards = ui->edtFileExtensions->text().split (';', QString::SkipEmptyParts);
    m_types[m_lastType]->mimetypes = ui->edtMimeTypes->text().split (';', QString::SkipEmptyParts);
    m_types[m_lastType]->priority = ui->sbPriority->value();
    m_types[m_lastType]->hl = ui->cmbHl->itemData(ui->cmbHl->currentIndex()).toString();
    
    if (ui->cmbIndenter->currentIndex() > 0)
      m_types[m_lastType]->indenter = KateAutoIndent::modeName (ui->cmbIndenter->currentIndex() - 1);
    else
      m_types[m_lastType]->indenter = "";
  }
}

void ModeConfigPage::typeChanged (int type)
{
  save ();
    
  ui->cmbHl->setEnabled (true);
  ui->btnDelete->setEnabled (true);
  ui->edtName->setEnabled (true);
  ui->edtSection->setEnabled (true);

  if (type > -1 && type < m_types.count())
  {
    KateFileType *t = m_types.at(type);

    ui->gbProperties->setTitle (i18n("Properties of %1",  ui->cmbFiletypes->currentText()));

    ui->gbProperties->setEnabled (true);
    ui->btnDelete->setEnabled (true);

    ui->edtName->setText(t->nameTranslated());
    ui->edtSection->setText(t->sectionTranslated());
    ui->edtVariables->setText(t->varLine);
    ui->edtFileExtensions->setText(t->wildcards.join (";"));
    ui->edtMimeTypes->setText(t->mimetypes.join (";"));
    ui->sbPriority->setValue(t->priority);
    
    ui->cmbHl->setEnabled (!t->hlGenerated);
    ui->btnDelete->setEnabled (!t->hlGenerated);
    ui->edtName->setEnabled (!t->hlGenerated);
    ui->edtSection->setEnabled (!t->hlGenerated);

    // activate current hl...
    for (int i = 0; i < ui->cmbHl->count(); ++i)
      if (ui->cmbHl->itemData (i).toString() == t->hl)
        ui->cmbHl->setCurrentIndex (i);
        
    // activate the right indenter
    int indenterIndex = 0;
    if (!t->indenter.isEmpty())
      indenterIndex = KateAutoIndent::modeNumber (t->indenter) + 1;
    ui->cmbIndenter->setCurrentIndex (indenterIndex);
  }
  else
  {
    ui->gbProperties->setTitle (i18n("Properties"));

    ui->gbProperties->setEnabled (false);
    ui->btnDelete->setEnabled (false);

    ui->edtName->clear();
    ui->edtSection->clear();
    ui->edtVariables->clear();
    ui->edtFileExtensions->clear();
    ui->edtMimeTypes->clear();
    ui->sbPriority->setValue(0);
    ui->cmbHl->setCurrentIndex (0);
    ui->cmbIndenter->setCurrentIndex (0);
  }

  m_lastType = type;
}

void ModeConfigPage::showMTDlg()
{
  QString text = i18n("Select the MimeTypes you want for this file type.\nPlease note that this will automatically edit the associated file extensions as well.");
  QStringList list = ui->edtMimeTypes->text().split( QRegExp("\\s*;\\s*"), QString::SkipEmptyParts );
  KMimeTypeChooserDialog d( i18n("Select Mime Types"), text, list, "text", this );
  if ( d.exec() == KDialog::Accepted ) {
    // do some checking, warn user if mime types or patterns are removed.
    // if the lists are empty, and the fields not, warn.
    ui->edtFileExtensions->setText( d.chooser()->patterns().join(";") );
    ui->edtMimeTypes->setText( d.chooser()->mimeTypes().join(";") );
  }
}

// kate: space-indent on; indent-width 2; replace-tabs on;