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#include <QtGui>

#include "highlighter.h"

 Highlighter::Highlighter(QTextDocument *parent)
     : QSyntaxHighlighter(parent){
 }

 Highlighter::Highlighter(QString FileName, QTextDocument *parent)
     : QSyntaxHighlighter(parent){
   //    setEditStyle();
       loadHighlightPatterns(FileName);
 }

void Highlighter::highlightSearch(const QString &find){
  HighlightingRule rule;
  rule.format.setBackground(Qt::yellow);
  rule.format.setFontWeight(QFont::Black);//
  findRule.clear();
  QString f=find;
  f.replace(".*",".+");
  if ((f=="^")||(f=="$"))return;
  if (!f.isEmpty()){
  rule.pattern = QRegExp(f,Qt::CaseInsensitive);

  findRule.append( rule);
  }
//  printf("suchSuch\n");
  rehighlight();
}

void Highlighter::highlightError(const QStringList fnd){
  findRule.clear();
  HighlightingRule rule;
  rule.format.setFontWeight(QFont::Black);
  rule.format.setForeground(Qt::yellow);
  rule.format.setFontUnderline(true);
  rule.format.setUnderlineStyle(QTextCharFormat::WaveUnderline);
  rule.format.setUnderlineColor(Qt::red);
  rule.format.setBackground(QColor(Qt::red).lighter(100));
  QString f="";
  for (int i=0;i<fnd.size();i++){
      f=fnd.at(i);
      if (!f.isEmpty()){
	rule.pattern = QRegExp(f,Qt::CaseInsensitive,QRegExp::FixedString);

	findRule.append( rule);
      }
  }
//  printf("suchSuch\n");
  rehighlight();
}

void Highlighter::highlightDupl(const CEnvironment &dupls){
    findRule.clear();
    if (dupls.size()==0){rehighlight();return;}
  HighlightingRule rule;
  rule.format.setBackground(QColor("orange"));
  rule.format.setForeground(Qt::blue);
  rule.format.setFontWeight(QFont::Black);//
  findRule.clear();
  QString f="";
  for (int i=0;i<dupls.size();i++){
      f=dupls.at(i).orginalLine;
  if (!f.isEmpty()){
  rule.pattern = QRegExp(f,Qt::CaseInsensitive);

  findRule.append( rule);
  }
  }
//  printf("suchSuch\n");
  rehighlight();
}

void Highlighter::highlightBlock(const QString &text) {
  foreach (HighlightingRule rule, highlightingRules) {
    if (rule.Comment) continue;
    QRegExp expression(rule.pattern);
    int index = text.indexOf(expression);
    while (index >= 0) {
      int length = expression.matchedLength();
      setFormat(index, length, rule.format);
      index = text.indexOf(expression, index + length);
    }
  }
  foreach (HighlightingRule rule, highlightingRules) {
    if (!rule.Comment) continue;
    QRegExp expression(rule.pattern);
    int index = text.indexOf(expression);
    while (index >= 0) {
      int length = expression.matchedLength();
      setFormat(index, length, rule.format);
      index = text.indexOf(expression, index + length);
     // printf("in editor height = %d\n",QFontMetrics(rule.format.font()).height());
    }
  }
  setCurrentBlockState(0);

  if (!outputstyle) {
  int startIndex = 0;
  if (previousBlockState() != 1)
    startIndex = text.indexOf(commentStartExpression);

  QTextCharFormat fmt = format(startIndex);
  if (fmt.foreground()==Qt::blue) startIndex=-1;
  while (startIndex >= 0) {
    int endIndex = text.indexOf(commentEndExpression, startIndex);
    int commentLength;
    if (endIndex == -1) {
      setCurrentBlockState(1);
      commentLength = text.length() - startIndex;
    } else {
      commentLength = endIndex - startIndex
                             + commentEndExpression.matchedLength();
    }
    setFormat(startIndex, commentLength, multiLineCommentFormat);
    startIndex = text.indexOf(commentStartExpression,
			      startIndex + commentLength);
    fmt = format(startIndex);
    if (fmt.foreground()==Qt::blue) startIndex=-1;
    if (fmt.underlineStyle()) startIndex=-1;
  }
  foreach (HighlightingRule rule, highlightingRules) {
    if (!rule.Comment) continue;
    QRegExp expression(rule.pattern);
    int index = text.indexOf(expression);
    while (index >= 0) {
      int length = expression.matchedLength();
      setFormat(index, length, rule.format);
      index = text.indexOf(expression, index + length);
     // printf("in editor height = %d\n",QFontMetrics(rule.format.font()).height());
    }
  }
  }
/*
  rule.pattern =  QRegExp("\\b[0-9]{2,}\\.[0-9]+\\b");
  rule.format = numberFormat;

  expression = QRegExp(rule.pattern);
  index = text.indexOf(expression);
  while (index >= 0) {
    int length = expression.matchedLength();
    setFormat(index, length, rule.format);
    index = text.indexOf(expression, index + length);
  } */
  foreach (HighlightingRule rule, findRule) {
    QRegExp expression(rule.pattern);
    int index = text.indexOf(expression);
    while (index >= 0) {
      int length = expression.matchedLength();
      setFormat(index, length, rule.format);
      index = text.indexOf(expression, index + length);
    }
  }
//  printf("hi blo\n");
}

void Highlighter::loadHighlightPatterns(QString FileName){
  //int group=1;  
  highlightingRules.clear();
  outputstyle=true;
  //  fprintf(stderr,"loadHighlightPatterns %s\n",FileName.toStdString().c_str());
  QSettings *pat = new QSettings(FileName,QSettings::IniFormat);
  /*foreach(HighlightingRule rule, highlightingRules){  
    pat->beginGroup(QString("%1").arg(group));
    pat->setValue("Pattern"     ,rule.pattern.pattern());
    pat->setValue("Color"           ,rule.format.foreground().color().name());
    pat->setValue("Background"      ,rule.format.background().color().name());
    pat->setValue("Weight"          ,rule.format.fontWeight());
    pat->setValue("Underlined"      ,rule.format.fontUnderline());
    pat->setValue("UnderlineStyle"  ,rule.format.underlineStyle());
    pat->setValue("UnderlineColor"  ,rule.format.underlineColor().name());
    pat->setValue("Overlined"       ,rule.format.fontOverline());
    pat->setValue("CaseSensitive"   ,rule.pattern.caseSensitivity()); 
    pat->endGroup();
    group++;
    }*/
  HighlightingRule rule;
  QStringList groups = pat->childGroups();
  foreach (QString grp,groups){
    if (!grp.contains(QRegExp("\\D+"))){
      pat->beginGroup(grp);
      rule.pattern.setPattern(pat->value("Pattern","").toString());
      rule.format.setForeground(QColor(pat->value("Color"           ,"#000000").toString()));
      rule.format.setBackground(QColor(pat->value("Background"      ,"#ffffff").toString()));
      rule.format.setFontWeight(pat->value("Weight"          ,50).toInt());
      rule.format.setFontUnderline(pat->value("Underlined"      ,"false").toBool());
      rule.format.setUnderlineStyle((QTextCharFormat::UnderlineStyle) pat->value("UnderlineStyle"  ,"1").toInt());
      rule.format.setUnderlineColor(QColor(pat->value("UnderlineColor"  ,rule.format.foreground().color().name()).toString()));
      rule.format.setFontOverline(pat->value("Overlined"       ,"false").toBool());
      rule.Comment=pat->value("Comment","false").toBool();
      rule.pattern.setCaseSensitivity((Qt::CaseSensitivity)pat->value("CaseSensitive"   ,0).toInt());
      pat->endGroup();
      highlightingRules.append(rule);
    }else{
      pat->beginGroup(grp);
      multiLineCommentFormat.setForeground(QColor(pat->value("MultilineColor" ,"#000000").toString()));
      multiLineCommentFormat.setBackground(QColor(pat->value("MultilineBackground" ,"#eefffe").toString()));
      multiLineCommentFormat.setFontUnderline(pat->value("MultilineUnderlined"      ,"false").toBool());
      commentStartExpression.setPattern(pat->value("MultilineStart","=\\s*$").toString());
      commentEndExpression.setPattern(pat->value("MultilineiEnd","^ [^=]*$").toString());
      outputstyle=false;
    }
  }
  //fprintf(stderr,"finished loadHighlightPatterns %s outputstyle=%s\n",FileName.toStdString().c_str(),(outputstyle)?"true":"false");
}