"""
     CCP4ProgramLog.py: CCP4 GUI Project
     Copyright (C) 2011 University of York

     This library is free software: you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public License
     version 3, modified in accordance with the provisions of the 
     license to address the requirements of UK law.
 
     You should have received a copy of the modified GNU Lesser General 
     Public License along with this library.  If not, copies may be 
     downloaded from http://www.ccp4.ac.uk/ccp4license.php
 
     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 Lesser General Public License for more details.
"""

"""
   Liz Potterton Aug 2011 - Separate ProgramLog from ErrorHandling
"""

from CCP4Config import QT
if QT():
  from CCP4QtObject import CObject
else:
  from CCP4Object import CObject
from CCP4ErrorHandling import *


class CProgramLog(CErrorReport,CObject):
  insts = None
  def __init__(self,parent=None):
    CErrorReport.__init__(self)
    CObject.__init__(self,parent=None)
      
  def append(self,cls=None,code=0,details=None,name=None):
    CErrorReport.append(self,cls=cls,code=code,details=details,name=name,recordTime=True)
    self.emitDataChanged()
    
  def extend(self,other=None,label=None):
    CErrorReport.extend(self,other=other,label=label,recordTime=True)
    self.emitDataChanged()

  def getTimeRange(self):
    t = []
    if len(self._reports)>0:
      t.append(self._reports[0]['time'])
      t.append(self._reports[-1]['time'])
    else:
      import time
      t.append( time.localtime())
      t.append( time.localtime())
    return t


def showTrace(messageBox=False,title="Crash report"):
  import sys,traceback
  exc_type, exc_value,exc_tb = sys.exc_info()[:3]
  sys.stderr.write(str(exc_type)+'\n')
  sys.stderr.write(str(exc_value)+'\n')
  err = ''
  for s in traceback.extract_stack()[:-1]:
     err = err + '  ' + str(s[0]) + ',  line ' + str(s[1]) + '\n'
     err = err + '    ' + str(s[3]) + '\n'
  print err

  if messageBox and GRAPHICAL():
    from PyQt4 import QtGui
    QtGui.QMessageBox.critical(self,title,title+":\n"+str(exc_type) + '\n' + str(exc_value) + '\n' + err)