qgscodeeditorexpression.h

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/***************************************************************************
    qgscodeeditorexpression.h - A SQL editor based on QScintilla
     --------------------------------------
    Date                 : 06-Oct-2013
    Copyright            : (C) 2013 by Salvatore Larosa
    Email                : lrssvtml (at) gmail (dot) com
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSCODEEDITOREXPRESSION_H
#define QGSCODEEDITOREXPRESSION_H
 
#include "qgis_gui.h"
#include "qgis_sip.h"
#include "qgscodeeditor.h"
#include "qgsexpressioncontext.h"
 
#include <Qsci/qscilexersql.h>
 
SIP_IF_MODULE( HAVE_QSCI_SIP )
 

class GUI_EXPORT QgsCodeEditorExpression : public QgsCodeEditor
{
    Q_OBJECT
 
  public:
    QgsCodeEditorExpression( QWidget *parent SIP_TRANSFERTHIS = nullptr );
 
    Qgis::ScriptLanguage language() const override;
    Qgis::ScriptLanguageCapabilities languageCapabilities() const override;

    void setExpressionContext( const QgsExpressionContext &context );

    void setFields( const QgsFields &fields );
 
    void toggleComment() override;
 
  protected:
    void initializeLexer() override;
 
  private:
    void updateApis();
    QsciAPIs *mApis = nullptr;
    QsciLexerSQL *mSqlLexer = nullptr;
 
    QStringList mVariables;
    QStringList mContextFunctions;
    QStringList mFunctions;
    QStringList mFieldNames;
};
 
#ifndef SIP_RUN

class QgsLexerExpression : public QsciLexerSQL
{
    Q_OBJECT
 
  public:
    explicit QgsLexerExpression( QObject *parent = nullptr );
 
    const char *language() const override;
 
    bool caseSensitive() const override;
 
    const char *wordCharacters() const override;
};
 
class QgsSciApisExpression : public QsciAPIs
{
    Q_OBJECT
  public:
    QgsSciApisExpression( QsciLexer *lexer );
 
    QStringList callTips( const QStringList &context, int commas, QsciScintilla::CallTipsStyle style, QList<int> &shifts ) override;
};
#endif
 
#endif