新增sql连接，目前支持mysql、sqlite、oracle连接以及相关数据库操作

2026-06-26 10:36:47 +08:00
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+// This defines the interface to the QsciLexerCustom class.
+//
+// Copyright (c) 2023 Riverbank Computing Limited <info@riverbankcomputing.com>
+// 
+// This file is part of QScintilla.
+// 
+// This file may be used under the terms of the GNU General Public License
+// version 3.0 as published by the Free Software Foundation and appearing in
+// the file LICENSE included in the packaging of this file.  Please review the
+// following information to ensure the GNU General Public License version 3.0
+// requirements will be met: http://www.gnu.org/copyleft/gpl.html.
+// 
+// If you do not wish to use this file under the terms of the GPL version 3.0
+// then you may purchase a commercial license.  For more information contact
+// info@riverbankcomputing.com.
+// 
+// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+
+#ifndef QSCILEXERCUSTOM_H
+#define QSCILEXERCUSTOM_H
+
+#include <Qsci/qsciglobal.h>
+#include <Qsci/qscilexer.h>
+
+
+class QsciScintilla;
+class QsciStyle;
+
+
+//! \brief The QsciLexerCustom class is an abstract class used as a base for
+//! new language lexers.
+//!
+//! The advantage of implementing a new lexer this way (as opposed to adding
+//! the lexer to the underlying Scintilla code) is that it does not require the
+//! QScintilla library to be re-compiled.  It also makes it possible to
+//! integrate external lexers.
+//!
+//! All that is necessary to implement a new lexer is to define appropriate
+//! styles and to re-implement the styleText() method.
+class QSCINTILLA_EXPORT QsciLexerCustom : public QsciLexer
+{
+    Q_OBJECT
+
+public:
+    //! Construct a QsciLexerCustom with parent \a parent.  \a parent is
+    //! typically the QsciScintilla instance.
+    QsciLexerCustom(QObject *parent = 0);
+
+    //! Destroy the QSciLexerCustom.
+    virtual ~QsciLexerCustom();
+
+    //! The next \a length characters starting from the current styling
+    //! position have their style set to style number \a style.  The current
+    //! styling position is moved.  The styling position is initially set by
+    //! calling startStyling().
+    //!
+    //! \sa startStyling(), styleText()
+    void setStyling(int length, int style);
+
+    //! The next \a length characters starting from the current styling
+    //! position have their style set to style \a style.  The current styling
+    //! position is moved.  The styling position is initially set by calling
+    //! startStyling().
+    //!
+    //! \sa startStyling(), styleText()
+    void setStyling(int length, const QsciStyle &style);
+
+    //! The styling position is set to \a start.  \a styleBits is unused.
+    //!
+    //! \sa setStyling(), styleBitsNeeded(), styleText()
+    void startStyling(int pos, int styleBits = 0);
+
+    //! This is called when the section of text beginning at position \a start
+    //! and up to position \a end needs to be styled.  \a start will always be
+    //! at the start of a line.  The text is styled by calling startStyling()
+    //! followed by one or more calls to setStyling().  It must be
+    //! re-implemented by a sub-class.
+    //!
+    //! \sa setStyling(), startStyling(), QsciScintilla::bytes(),
+    //! QsciScintilla::text()
+    virtual void styleText(int start, int end) = 0;
+
+    //! \reimp
+    virtual void setEditor(QsciScintilla *editor);
+
+    //! \reimp This re-implementation returns 5 as the number of style bits
+    //! needed.
+    virtual int styleBitsNeeded() const;
+
+private slots:
+    void handleStyleNeeded(int pos);
+
+private:
+    QsciLexerCustom(const QsciLexerCustom &);
+    QsciLexerCustom &operator=(const QsciLexerCustom &);
+};
+
+#endif