Eberhard Graether
efe3316ae3
* updated spacings and colors in QtCodeView and QtCodeFile * using Source Code Pro Regular (had to remove light cut from the Fonts folder because it got always used) * updated syntax highlighted colors to fit design * changed colors of highlights * indent all QtCodeSnippets by maximum line number in QtCodeFile * fixed syntax highlighting to work with sole multiline comment end fortune cookie message = Your present plans are going to succeed.
120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
#include "qt/utility/QtHighlighter.h"
|
|
|
|
#include <QTextCursor>
|
|
#include <QTextDocument>
|
|
|
|
QtHighlighter::QtHighlighter(QTextDocument *parent)
|
|
: QSyntaxHighlighter(parent)
|
|
{
|
|
QStringList keywordPatterns;
|
|
keywordPatterns
|
|
<< "break" << "case" << "const" << "continue" << "default"
|
|
<< "delete" << "do" << "else" << "explicit" << "false" << "for"
|
|
<< "friend" << "if" << "inline" << "new" << "NULL" << "nullptr" << "operator"
|
|
<< "private" << "protected" << "public" << "return" << "signals"
|
|
<< "slots" << "static" << "switch" << "template" << "true" << "typedef"
|
|
<< "typename" << "virtual" << "volatile" << "while";
|
|
|
|
QStringList typePatterns;
|
|
typePatterns
|
|
<< "bool" << "char" << "class" << "double"
|
|
<< "enum" << "float" << "int" << "long"
|
|
<< "namespace" << "short" << "signed" << "size_t"
|
|
<< "struct" << "union" << "unsigned" << "void";
|
|
|
|
QRegExp directiveRegExp = QRegExp("#[a-z]+\\b");
|
|
QRegExp commentRegExp = QRegExp("//[^\n]*");
|
|
QRegExp quotationRegExp = QRegExp("\".*\"");
|
|
QRegExp quotation2RegExp = QRegExp("<.*>");
|
|
QRegExp numberRegExp = QRegExp("\\b[0-9]+\\b");
|
|
QRegExp functionRegExp = QRegExp("\\b[A-Za-z0-9_]+(?=\\()");
|
|
|
|
QColor directiveColor = QColor(27,136,86);
|
|
QColor keywordColor = QColor(27,136,86);
|
|
QColor typeColor = QColor(208,93,24);
|
|
QColor commentColor = Qt::gray;
|
|
QColor numberColor = QColor(153,22,165);
|
|
QColor quotationColor = QColor(63,169,245);
|
|
QColor functionColor = QColor(172,150,0);
|
|
|
|
foreach (const QString &pattern, keywordPatterns)
|
|
{
|
|
addHighlightingRule(keywordColor, QRegExp("\\b" + pattern + "\\b"));
|
|
}
|
|
|
|
foreach (const QString &pattern, typePatterns)
|
|
{
|
|
addHighlightingRule(typeColor, QRegExp("\\b" + pattern + "\\b"));
|
|
}
|
|
|
|
addHighlightingRule(directiveColor, directiveRegExp);
|
|
addHighlightingRule(commentColor, commentRegExp);
|
|
addHighlightingRule(quotationColor, quotationRegExp);
|
|
addHighlightingRule(quotationColor, quotation2RegExp);
|
|
addHighlightingRule(numberColor, numberRegExp);
|
|
addHighlightingRule(functionColor, functionRegExp);
|
|
}
|
|
|
|
void QtHighlighter::highlightBlock(const QString &text)
|
|
{
|
|
foreach (const HighlightingRule &rule, highlightingRules)
|
|
{
|
|
QRegExp expression(rule.pattern);
|
|
int index = expression.indexIn(text);
|
|
while (index >= 0)
|
|
{
|
|
int length = expression.matchedLength();
|
|
setFormat(index, length, rule.format);
|
|
index = expression.indexIn(text, index + length);
|
|
}
|
|
}
|
|
setCurrentBlockState(0);
|
|
|
|
QRegExp commentStartExpression = QRegExp("/\\*");
|
|
QRegExp commentEndExpression = QRegExp("\\*/");
|
|
|
|
QTextCursor cursorStart = document()->find(commentStartExpression);
|
|
QTextCursor cursorEnd = document()->find(commentEndExpression);
|
|
|
|
int startIndex = 0;
|
|
if (!cursorEnd.isNull() && (cursorStart.isNull() || cursorEnd < cursorStart)
|
|
&& currentBlock().blockNumber() <= cursorEnd.blockNumber())
|
|
{
|
|
startIndex = 0;
|
|
}
|
|
else if (previousBlockState() != 1)
|
|
{
|
|
startIndex = commentStartExpression.indexIn(text);
|
|
}
|
|
|
|
QTextCharFormat multiLineCommentFormat;
|
|
multiLineCommentFormat.setForeground(Qt::gray);
|
|
|
|
while (startIndex >= 0)
|
|
{
|
|
int endIndex = commentEndExpression.indexIn(text, startIndex);
|
|
int commentLength;
|
|
|
|
if (endIndex == -1)
|
|
{
|
|
setCurrentBlockState(1);
|
|
commentLength = text.length() - startIndex;
|
|
}
|
|
else
|
|
{
|
|
commentLength = endIndex - startIndex + commentEndExpression.matchedLength();
|
|
}
|
|
|
|
setFormat(startIndex, commentLength, multiLineCommentFormat);
|
|
startIndex = commentStartExpression.indexIn(text, startIndex + commentLength);
|
|
}
|
|
}
|
|
|
|
void QtHighlighter::addHighlightingRule(const QColor& color, const QRegExp& regExp)
|
|
{
|
|
HighlightingRule rule;
|
|
rule.format.setForeground(color);
|
|
rule.pattern = regExp;
|
|
highlightingRules.append(rule);
|
|
}
|