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@@ -1,6 +1,6 @@
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#include "fb2code.hpp"
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-#ifdef USE_SCINTILLA
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+#ifdef FB2_USE_SCINTILLA
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/////////////////////////////////////////////////////////////////////////////
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//
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@@ -86,22 +86,363 @@ void Fb2CodeEdit::load(const QByteArray &array, const QList<int> &folds)
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}
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}
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-#else // USE_SCINTILLA
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+void Fb2CodeEdit::zoomReset()
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+{
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+ if (codeEdit) codeEdit->zoomTo(1);
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+}
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+
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+#endif // FB2_USE_SCINTILLA
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+
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+#ifdef FB2_USE_PLAINTEXT
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#include <QtGui>
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+static const QColor DEFAULT_SYNTAX_CHAR = Qt::blue;
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+static const QColor DEFAULT_ELEMENT_NAME = Qt::darkRed;
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+static const QColor DEFAULT_COMMENT = Qt::darkGreen;
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+static const QColor DEFAULT_ATTRIBUTE_NAME = Qt::red;
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+static const QColor DEFAULT_ATTRIBUTE_VALUE = Qt::darkGreen;
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+static const QColor DEFAULT_ERROR = Qt::darkMagenta;
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+static const QColor DEFAULT_OTHER = Qt::black;
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+
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+// Regular expressions for parsing XML borrowed from:
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+// http://www.cs.sfu.ca/~cameron/REX.html
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+static const QString EXPR_COMMENT = "<!--[^-]*-([^-][^-]*-)*->";
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+static const QString EXPR_COMMENT_BEGIN = "<!--";
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+static const QString EXPR_COMMENT_END = "[^-]*-([^-][^-]*-)*->";
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+static const QString EXPR_ATTRIBUTE_VALUE = "\"[^<\"]*\"|'[^<']*'";
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+static const QString EXPR_NAME = "([A-Za-z_:]|[^\\x00-\\x7F])([A-Za-z0-9_:.-]|[^\\x00-\\x7F])*";
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+
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+Fb2Highlighter::Fb2Highlighter(QObject* parent)
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+: QSyntaxHighlighter(parent)
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+{
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+ init();
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+}
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+
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+Fb2Highlighter::Fb2Highlighter(QTextDocument* parent)
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+: QSyntaxHighlighter(parent)
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+{
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+ init();
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+}
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+
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+Fb2Highlighter::Fb2Highlighter(QTextEdit* parent)
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+: QSyntaxHighlighter(parent)
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+{
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+ init();
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+}
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+
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+Fb2Highlighter::~Fb2Highlighter()
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+{
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+}
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+
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+void Fb2Highlighter::init()
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+{
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+ fmtSyntaxChar.setForeground(DEFAULT_SYNTAX_CHAR);
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+ fmtElementName.setForeground(DEFAULT_ELEMENT_NAME);
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+ fmtComment.setForeground(DEFAULT_COMMENT);
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+ fmtAttributeName.setForeground(DEFAULT_ATTRIBUTE_NAME);
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+ fmtAttributeValue.setForeground(DEFAULT_ATTRIBUTE_VALUE);
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+ fmtError.setForeground(DEFAULT_ERROR);
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+ fmtOther.setForeground(DEFAULT_OTHER);
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+}
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+
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+void Fb2Highlighter::setHighlightColor(HighlightType type, QColor color, bool foreground)
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+{
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+ QTextCharFormat format;
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+ if (foreground)
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+ format.setForeground(color);
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+ else
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+ format.setBackground(color);
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+ setHighlightFormat(type, format);
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+}
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+
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+void Fb2Highlighter::setHighlightFormat(HighlightType type, QTextCharFormat format)
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+{
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+ switch (type)
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+ {
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+ case SyntaxChar:
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+ fmtSyntaxChar = format;
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+ break;
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+ case ElementName:
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+ fmtElementName = format;
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+ break;
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+ case Comment:
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+ fmtComment = format;
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+ break;
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+ case AttributeName:
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+ fmtAttributeName = format;
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+ break;
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+ case AttributeValue:
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+ fmtAttributeValue = format;
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+ break;
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+ case Error:
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+ fmtError = format;
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+ break;
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+ case Other:
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+ fmtOther = format;
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+ break;
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+ }
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+ rehighlight();
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+}
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+
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+void Fb2Highlighter::highlightBlock(const QString& text)
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+{
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+ int i = 0;
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+ int pos = 0;
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+ int brackets = 0;
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+
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+ state = (previousBlockState() == InElement ? ExpectAttributeOrEndOfElement : NoState);
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+
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+ if (previousBlockState() == InComment)
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+ {
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+ // search for the end of the comment
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+ QRegExp expression(EXPR_COMMENT_END);
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+ pos = expression.indexIn(text, i);
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+
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+ if (pos >= 0)
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+ {
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+ // end comment found
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+ const int iLength = expression.matchedLength();
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+ setFormat(0, iLength - 3, fmtComment);
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+ setFormat(iLength - 3, 3, fmtSyntaxChar);
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+ i += iLength; // skip comment
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+ }
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+ else
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+ {
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+ // in comment
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+ setFormat(0, text.length(), fmtComment);
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+ setCurrentBlockState(InComment);
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+ return;
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+ }
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+ }
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+
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+ for (; i < text.length(); i++)
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+ {
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+ switch (text.at(i).toAscii())
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+ {
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+ case '<':
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+ brackets++;
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+ if (brackets == 1)
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+ {
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+ setFormat(i, 1, fmtSyntaxChar);
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+ state = ExpectElementNameOrSlash;
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+ }
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+ else
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+ {
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+ // wrong bracket nesting
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+ setFormat(i, 1, fmtError);
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+ }
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+ break;
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+
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+ case '>':
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+ brackets--;
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+ if (brackets == 0)
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+ {
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+ setFormat(i, 1, fmtSyntaxChar);
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+ }
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+ else
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+ {
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+ // wrong bracket nesting
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+ setFormat( i, 1, fmtError);
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+ }
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+ state = NoState;
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+ break;
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+
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+ case '/':
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+ if (state == ExpectElementNameOrSlash)
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+ {
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+ state = ExpectElementName;
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+ setFormat(i, 1, fmtSyntaxChar);
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+ }
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+ else
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+ {
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+ if (state == ExpectAttributeOrEndOfElement)
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+ {
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+ setFormat(i, 1, fmtSyntaxChar);
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+ }
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+ else
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+ {
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+ processDefaultText(i, text);
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+ }
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+ }
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+ break;
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+
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+ case '=':
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+ if (state == ExpectEqual)
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+ {
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+ state = ExpectAttributeValue;
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+ setFormat(i, 1, fmtOther);
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+ }
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+ else
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+ {
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+ processDefaultText(i, text);
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+ }
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+ break;
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+
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+ case '\'':
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+ case '\"':
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+ if (state == ExpectAttributeValue)
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+ {
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+ // search attribute value
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+ QRegExp expression(EXPR_ATTRIBUTE_VALUE);
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+ pos = expression.indexIn(text, i);
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+
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+ if (pos == i) // attribute value found ?
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+ {
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+ const int iLength = expression.matchedLength();
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+
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+ setFormat(i, 1, fmtOther);
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+ setFormat(i + 1, iLength - 2, fmtAttributeValue);
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+ setFormat(i + iLength - 1, 1, fmtOther);
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+
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+ i += iLength - 1; // skip attribute value
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+ state = ExpectAttributeOrEndOfElement;
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+ }
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+ else
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+ {
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+ processDefaultText(i, text);
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+ }
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+ }
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+ else
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+ {
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+ processDefaultText(i, text);
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+ }
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+ break;
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+
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+ case '!':
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+ if (state == ExpectElementNameOrSlash)
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+ {
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+ // search comment
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+ QRegExp expression(EXPR_COMMENT);
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+ pos = expression.indexIn(text, i - 1);
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+
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+ if (pos == i - 1) // comment found ?
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+ {
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+ const int iLength = expression.matchedLength();
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+
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+ setFormat(pos, 4, fmtSyntaxChar);
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+ setFormat(pos + 4, iLength - 7, fmtComment);
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+ setFormat(iLength - 3, 3, fmtSyntaxChar);
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+ i += iLength - 2; // skip comment
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+ state = NoState;
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+ brackets--;
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+ }
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+ else
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+ {
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+ // Try find multiline comment
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+ QRegExp expression(EXPR_COMMENT_BEGIN); // search comment start
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+ pos = expression.indexIn(text, i - 1);
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+
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+ //if (pos == i - 1) // comment found ?
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+ if (pos >= i - 1)
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+ {
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+ setFormat(i, 3, fmtSyntaxChar);
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+ setFormat(i + 3, text.length() - i - 3, fmtComment);
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+ setCurrentBlockState(InComment);
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+ return;
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+ }
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+ else
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+ {
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+ processDefaultText(i, text);
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+ }
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+ }
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+ }
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+ else
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+ {
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+ processDefaultText(i, text);
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+ }
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+
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+ break;
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+
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+ default:
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+ const int iLength = processDefaultText(i, text);
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+ if (iLength > 0)
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+ i += iLength - 1;
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+ break;
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+ }
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+ }
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+
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+ if (state == ExpectAttributeOrEndOfElement)
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+ {
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+ setCurrentBlockState(InElement);
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+ }
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+}
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+
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+int Fb2Highlighter::processDefaultText(int i, const QString& text)
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+{
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+ // length of matched text
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+ int iLength = 0;
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+
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+ switch(state)
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+ {
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+ case ExpectElementNameOrSlash:
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+ case ExpectElementName:
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+ {
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+ // search element name
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+ QRegExp expression(EXPR_NAME);
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+ const int pos = expression.indexIn(text, i);
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+
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+ if (pos == i) // found ?
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+ {
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+ iLength = expression.matchedLength();
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+
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+ setFormat(pos, iLength, fmtElementName);
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+ state = ExpectAttributeOrEndOfElement;
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+ }
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+ else
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+ {
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+ setFormat(i, 1, fmtOther);
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+ }
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+ }
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+ break;
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+
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+ case ExpectAttributeOrEndOfElement:
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+ {
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+ // search attribute name
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+ QRegExp expression(EXPR_NAME);
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+ const int pos = expression.indexIn(text, i);
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+
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+ if (pos == i) // found ?
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+ {
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+ iLength = expression.matchedLength();
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+
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+ setFormat(pos, iLength, fmtAttributeName);
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+ state = ExpectEqual;
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+ }
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+ else
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+ {
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+ setFormat(i, 1, fmtOther);
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+ }
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+ }
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+ break;
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+
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+ default:
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+ setFormat(i, 1, fmtOther);
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+ break;
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+ }
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+ return iLength;
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+}
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+
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+qreal Fb2CodeEdit::baseFontSize = 10;
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+qreal Fb2CodeEdit::zoomRatioMin = 0.2;
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+qreal Fb2CodeEdit::zoomRatioMax = 5.0;
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+
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Fb2CodeEdit::Fb2CodeEdit(QWidget *parent) : QPlainTextEdit(parent)
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{
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lineNumberArea = new LineNumberArea(this);
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+ highlighter = new Fb2Highlighter(this);
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+ highlighter->setDocument( document() );
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connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
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connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int)));
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connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine()));
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+ zoomRatio = 1;
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+
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#ifdef Q_WS_WIN
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- setFont(QFont("Courier New", 8));
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+ setFont(QFont("Courier New", baseFontSize));
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#else
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- setFont(QFont("Monospace", 8));
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+ setFont(QFont("Monospace", baseFontSize));
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#endif
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updateLineNumberAreaWidth(0);
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@@ -190,4 +531,34 @@ void Fb2CodeEdit::lineNumberAreaPaintEvent(QPaintEvent *event)
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}
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}
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-#endif // USE_SCINTILLA
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+void Fb2CodeEdit::zoomIn()
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+{
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+ qreal ratio = zoomRatio * 1.1;
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+ ratio = qMin(ratio, zoomRatioMax);
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+ setZoomRatio(ratio);
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+}
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+
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+void Fb2CodeEdit::zoomOut()
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+{
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+ qreal ratio = zoomRatio / 1.1;
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+ ratio = qMax(ratio, zoomRatioMin);
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+ setZoomRatio(ratio);
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+}
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+
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+void Fb2CodeEdit::zoomReset()
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+{
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+ setZoomRatio(1.0);
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+}
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+
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+void Fb2CodeEdit::setZoomRatio(qreal ratio)
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+{
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+ if (!qFuzzyCompare(1 + zoomRatio, 1 + ratio)) {
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+ zoomRatio = ratio;
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+ QFont f = font();
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+ f.setPointSizeF(baseFontSize * zoomRatio);
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+ setFont(f);
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+ }
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+}
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+
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+
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+#endif // FB2_USE_PLAINTEXT
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Kandrashin Denis