/*  This file is part of the KDE libraries and the Kate part.
 *
 *  Copyright (C) 2008 Dmitry Suzdalev <dimsuz@gmail.com>
 *  Copyright (C) 2008 Erlend Hamberg <ehamberg@gmail.com>
 *
 *  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 "katevimodebar.h"
#include "kateviinputmodemanager.h"
#include "katevinormalmode.h"
#include "katevivisualmode.h"
#include "kateviinsertmode.h"

#include <QtGui/QLabel>
#include <QtGui/QHBoxLayout>
#include <QTimer>
#include <QTextDocument>

#include "klocale.h"

KateViModeBar::KateViModeBar(QWidget* parent)
: KateViewBarWidget(false, parent),
  m_labelStatus(new QLabel(this)),
  m_labelMessage(new QLabel(this)),
  m_labelCommand(new QLabel(this)),
  m_timer(0)
{
  QHBoxLayout *lay = qobject_cast<QHBoxLayout*>(layout());
  lay->addWidget(m_labelStatus);
  lay->addSpacing(30);
  lay->addWidget(m_labelMessage);
  lay->addStretch(1);
  lay->addWidget(m_labelCommand);
  lay->addSpacing(30);

  // otherwise the command will look 'jumpy' as new symbols are added to it
  // 50 pix should be enough i think
  m_labelCommand->setFixedWidth(50);

  m_labelStatus->setTextFormat(Qt::PlainText);
  m_labelCommand->setTextFormat(Qt::PlainText);
}

KateViModeBar::~KateViModeBar()
{
  delete m_timer;
}

void KateViModeBar::updateViMode(ViMode mode)
{
  m_labelStatus->setText(modeToString(mode));
}

void KateViModeBar::updatePartialCommand(const QString &cmd)
{
  m_labelCommand->setText(cmd);
}

void KateViModeBar::setForegroundColor(KColorScheme::ForegroundRole role)
{
  QPalette p = m_labelMessage->palette();
  KColorScheme::adjustForeground(p, role, QPalette::WindowText, KColorScheme::Window);
  m_labelMessage->setPalette(p);
}

void KateViModeBar::showMessage(const QString &msg)
{
  if ( m_timer ) {
    m_timer->stop();
  }
  setForegroundColor(KColorScheme::NormalText);
  m_labelMessage->setText(msg);
}

void KateViModeBar::showErrorMessage(const QString &msg)
{
  if ( m_timer ) {
    m_timer->stop();
  }
  setForegroundColor(KColorScheme::NegativeText);
  m_labelMessage->setText(Qt::escape(msg));
}

void KateViModeBar::clearMessage()
{
  // don't clear the message right away, wait two seconds so the user will see the message even if
  // she presses a key right after getting the error message
  if ( !m_labelMessage->text().isEmpty() ) {
    if (!m_timer) {
      m_timer = new QTimer(this);
      connect(m_timer, SIGNAL(timeout()), this, SLOT(_clearMessage()));
      m_timer->setSingleShot(true);
      m_timer->setInterval(2000);
    }

    m_timer->start();
  }
}

void KateViModeBar::_clearMessage()
{
  setForegroundColor(KColorScheme::NormalText);
  m_labelMessage->clear();
}

QString KateViModeBar::modeToString(ViMode mode) const
{
  QString modeStr;
  switch (mode) {
    case InsertMode:
      modeStr = i18n("VI: INSERT MODE");
      break;
    case NormalMode:
      modeStr = i18n("VI: NORMAL MODE");
      break;
    case VisualMode:
      modeStr = i18n("VI: VISUAL");
      break;
    case VisualBlockMode:
      modeStr = i18n("VI: VISUAL BLOCK");
      break;
    case VisualLineMode:
      modeStr = i18n("VI: VISUAL LINE");
      break;
    case ReplaceMode:
      modeStr = i18n("VI: REPLACE");
      break;
  }

  return modeStr;
}
