#  This software and supporting documentation are distributed by
#      Institut Federatif de Recherche 49
#      CEA/NeuroSpin, Batiment 145,
#      91191 Gif-sur-Yvette cedex
#      France
#
# This software is governed by the CeCILL license version 2 under
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# You can  use, modify and/or redistribute the software under the 
# terms of the CeCILL license version 2 as circulated by CEA, CNRS
# and INRIA at the following URL "http://www.cecill.info". 
#
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from brainvisa.processing.qtgui.backwardCompatibleQt import QDialog, Qt, QVBoxLayout, QHBoxLayout, QPushButton, QSizePolicy, SIGNAL, SLOT, QTextCursor, QWidget
from soma.qtgui.api import TextEditWithSearch

class ShowException( QDialog ):
  _theExceptionDialog = None 
  
  def __init__( self, messageHTML, detailHTML, parent = None, caption=None ):
    QDialog.__init__( self, parent, Qt.Dialog )
    self.setModal(False)
    layout = QVBoxLayout( self )
    self.setLayout(layout)
    layout.setContentsMargins( 10, 10, 10, 10 )
    layout.setSpacing( 5 )
    if caption is None:
      caption = _t_( 'Error' )
    self.setWindowTitle( caption )
    self.teHTML = TextEditWithSearch( self )
    self.teHTML.setReadOnly( True )
    layout.addWidget( self.teHTML )
    self.teHTML.setSizePolicy( QSizePolicy( QSizePolicy.Expanding, QSizePolicy.Expanding ) )
    self.messageHTML = [ messageHTML ] 
    self.detailHTML = [ detailHTML ]
    self.advancedMode = False
    self.updateText()
        
    hb = QHBoxLayout( )
    layout.addLayout( hb )
    self.btnOk = QPushButton( _t_( 'Ok' ), self )
    hb.addWidget( self.btnOk )
    self.btnOk.setSizePolicy( QSizePolicy( QSizePolicy.Fixed, QSizePolicy.Fixed ) )
    self.btnOk.setDefault( True )
    self.btnOk.setAutoDefault( True )
    self.connect( self.btnOk, SIGNAL( 'clicked()' ), self, SLOT( 'close()' ) )
    
    self.btnAdvanced = QPushButton( _t_( 'more info' ), self )
    hb.addWidget( self.btnAdvanced )
    self.btnAdvanced.setSizePolicy( QSizePolicy( QSizePolicy.Fixed, QSizePolicy.Fixed ) )
    self.connect( self.btnAdvanced, SIGNAL( 'clicked()' ), self.changeAdvancedMode )
    self.updateText()
    
    self.setSizePolicy( QSizePolicy( QSizePolicy.Expanding, QSizePolicy.Expanding ) )
    self.resize( 640, 400 )
    ShowException._theExceptionDialog = self

  
  def changeAdvancedMode( self ):
    if self.advancedMode:
      self.advancedMode = False
      self.btnAdvanced.setText( _t_( 'more info' ) )
    else:
      self.advancedMode = True
      self.btnAdvanced.setText( _t_( 'hide info' ) )
    self.updateText()
      
  def updateText( self ):
    if self.advancedMode:
      self.teHTML.setText( '<hr>\n'.join( [i + '<hr>\n' + j for i, j in zip( self.messageHTML, self.detailHTML) ] ) )
    else:
      self.teHTML.setText( '<hr>\n'.join( self.messageHTML ) )
    #self.teHTML.scrollToBottom()
    self.teHTML.moveCursor(QTextCursor.End)
    
  
  def appendException( self, messageHTML, detailHTML ):
    self.messageHTML.append( messageHTML )
    self.detailHTML.append( detailHTML )
    self.updateText()
    
  def closeEvent( self, event ):
    ShowException._theExceptionDialog = None
    QWidget.closeEvent(self, event)