fixed issue of text color changing for code blocks in light mode (#1299)

gpt4all-chat/responsetext.cpp

@@ -23,6 +23,8 @@ enum Language {
     Php
 };
 
+
+static QColor defaultColor      = "#d1d5db"; // white
 static QColor keywordColor      = "#2e95d3"; // blue
 static QColor functionColor     = "#f22c3d"; // red
 static QColor functionCallColor = "#e9950c"; // orange
@@ -91,6 +93,12 @@ static QVector<HighlightingRule> pythonHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         QTextCharFormat functionCallFormat;
         functionCallFormat.setForeground(functionCallColor);
         rule.pattern = QRegularExpression("\\b(\\w+)\\s*(?=\\()");
@@ -151,6 +159,12 @@ static QVector<HighlightingRule> csharpHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         // Function call highlighting
         QTextCharFormat functionCallFormat;
         functionCallFormat.setForeground(functionCallColor);
@@ -219,6 +233,12 @@ static QVector<HighlightingRule> cppHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         QTextCharFormat functionCallFormat;
         functionCallFormat.setForeground(functionCallColor);
         rule.pattern = QRegularExpression("\\b(\\w+)\\s*(?=\\()");
@@ -297,6 +317,12 @@ static QVector<HighlightingRule> typescriptHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         QTextCharFormat functionCallFormat;
         functionCallFormat.setForeground(functionCallColor);
         rule.pattern = QRegularExpression("\\b(\\w+)\\s*(?=\\()");
@@ -381,6 +407,12 @@ static QVector<HighlightingRule> javaHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         QTextCharFormat functionCallFormat;
         functionCallFormat.setForeground(functionCallColor);
         rule.pattern = QRegularExpression("\\b(\\w+)\\s*(?=\\()");
@@ -450,6 +482,12 @@ static QVector<HighlightingRule> goHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         QTextCharFormat functionCallFormat;
         functionCallFormat.setForeground(functionCallColor);
         rule.pattern = QRegularExpression("\\b(\\w+)\\s*(?=\\()");
@@ -515,6 +553,12 @@ static QVector<HighlightingRule> bashHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         QTextCharFormat commandFormat;
         commandFormat.setForeground(commandColor);
         QStringList commandPatterns = {
@@ -582,6 +626,12 @@ static QVector<HighlightingRule> latexHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         QTextCharFormat commandFormat;
         commandFormat.setForeground(commandColor); // commandColor needs to be set to your liking
         rule.pattern = QRegularExpression("\\\\[A-Za-z]+"); // Pattern for LaTeX commands
@@ -604,6 +654,12 @@ static QVector<HighlightingRule> htmlHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         QTextCharFormat attributeNameFormat;
         attributeNameFormat.setForeground(attributeNameColor);
         rule.pattern = QRegularExpression("\\b(\\w+)\\s*=");
@@ -644,6 +700,12 @@ static QVector<HighlightingRule> phpHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         QTextCharFormat functionCallFormat;
         functionCallFormat.setForeground(functionCallColor);
         rule.pattern = QRegularExpression("\\b(\\w+)\\s*(?=\\()");
@@ -711,6 +773,12 @@ static QVector<HighlightingRule> jsonHighlightingRules()
 
         HighlightingRule rule;
 
+        QTextCharFormat defaultFormat;
+        defaultFormat.setForeground(defaultColor);
+        rule.pattern = QRegularExpression(".*");
+        rule.format = defaultFormat;
+        highlightingRules.append(rule);
+
         // Key string rule
         QTextCharFormat keyFormat;
         keyFormat.setForeground(keyColor);  // Assuming keyColor is defined