////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2016-2022 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave 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 3 of the License, or
// (at your option) any later version.
//
// Octave 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 Octave; see the file COPYING.  If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////

#if defined (HAVE_CONFIG_H)
#  include "config.h"
#endif

#if defined (HAVE_QSCINTILLA)

#include "marker.h"

OCTAVE_BEGIN_NAMESPACE(octave)

marker::marker (QsciScintilla *area, int original_linenr,
                editor_markers type, int editor_linenr,
                const QString& condition)
: QObject ()
{
  construct (area, original_linenr, type, editor_linenr, condition);
}

marker::marker (QsciScintilla *area, int original_linenr,
                editor_markers type, const QString& condition)
  : QObject ()
{
  construct (area, original_linenr, type, original_linenr - 1, condition);
}

void marker::construct (QsciScintilla *area, int original_linenr,
                        editor_markers type, int editor_linenr,
                        const QString& condition)
{
  m_edit_area = area;
  m_original_linenr = original_linenr;
  m_marker_type = type;
  m_mhandle = m_edit_area->markerAdd (editor_linenr, m_marker_type);
  m_condition = condition;
}

void marker::handle_remove_via_original_linenr (int linenr)
{
  if (m_original_linenr == linenr)
    {
      m_edit_area->markerDeleteHandle (m_mhandle);
      delete this;
    }
}

void marker::handle_request_remove_via_editor_linenr (int linenr)
{
  // Get line number from the edit area and if it matches
  // the requested line number, remove.
  if (m_edit_area->markerLine (m_mhandle) == linenr)
    {
      // Rather than delete editor marker directly, issue command
      // to Octave core.  Octave core should signal back to remove
      // this breakpoint via debugger line number.
      emit request_remove (m_original_linenr);
    }
}

void marker::handle_remove (void)
{
  m_edit_area->markerDeleteHandle (m_mhandle);
  delete this;
}

void marker::handle_find_translation (int linenr, int& translation_linenr,
                                      marker *&bp)
{
  if (m_original_linenr == linenr)
    {
      translation_linenr = m_edit_area->markerLine (m_mhandle);
      bp = this;
    }
}

void marker::handle_find_just_before (int linenr, int& original_linenr,
                                      int& editor_linenr)
{
  if (m_original_linenr < linenr && m_original_linenr >= original_linenr)
    {
      original_linenr = m_original_linenr;
      editor_linenr = m_edit_area->markerLine (m_mhandle);
    }
}

void marker::handle_find_just_after (int linenr, int& original_linenr,
                                     int& editor_linenr)
{
  if (m_original_linenr > linenr && m_original_linenr <= original_linenr)
    {
      original_linenr = m_original_linenr;
      editor_linenr = m_edit_area->markerLine (m_mhandle);
    }
}

void marker::handle_report_editor_linenr (QIntList& lines,
                                          QStringList& conditions)
{
  lines << m_edit_area->markerLine (m_mhandle);
  conditions << m_condition;
}

void marker::handle_marker_line_deleted (int mhandle)
{
  // FUTURE SUPPORT: There really should be a signal in QsciScintilla
  // called markerLineDeleted (int mhandle) because there is no way
  // of knowing this.  QsciScintilla will place the marker at a
  // different line rather than remove it from the margin.  I (DJS) will
  // lobby for such a signal.
  if (m_mhandle == mhandle)
    {
      if (m_marker_type == breakpoint || m_marker_type == debugger_position)
        {
          int editor_linenr = m_edit_area->markerLine (m_mhandle);
          m_edit_area->markerDeleteHandle (m_mhandle);
          m_marker_type = (m_marker_type == breakpoint
                           ? unsure_breakpoint : unsure_debugger_position);
          m_mhandle = m_edit_area->markerAdd (editor_linenr, m_marker_type);
        }
    }
}

void marker::handle_marker_line_undeleted (int mhandle)
{
  // FUTURE SUPPORT: There really should be a signal in QsciScintilla
  // called markerLineUndeleted (int mhandle) because there is no way
  // of knowing this.  QsciScintilla will place the marker at a
  // different line rather than remove it from the margin.  I (DJS) will
  // lobby for such a signal.
  if (m_mhandle == mhandle)
    {
      if (m_marker_type == unsure_breakpoint
          || m_marker_type == unsure_debugger_position)
        {
          int editor_linenr = m_edit_area->markerLine (m_mhandle);
          m_edit_area->markerDeleteHandle (m_mhandle);
          m_marker_type = (m_marker_type == unsure_breakpoint
                           ? breakpoint : debugger_position);
          m_mhandle = m_edit_area->markerAdd (editor_linenr, m_marker_type);
        }
    }
}

OCTAVE_END_NAMESPACE(octave)
#endif