pgLab/pglab/querytool/SqlDocument.h

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#ifndef SQLDOCUMENT_H
#define SQLDOCUMENT_H
#include <QList>
#include <QObject>
#include <QString>
class QTextDocument;
class QWidget;
class SqlSyntaxHighlighter;
/** Owns the text of a SQL script together with its file state.
* Several query tools (editors) can show the same document, they all
* use the same QTextDocument.
*/
class SqlDocument : public QObject {
Q_OBJECT
public:
explicit SqlDocument(QObject *parent = nullptr);
~SqlDocument() override;
QTextDocument *textDocument() const { return m_document; }
SqlSyntaxHighlighter *highlighter() const { return m_highlighter; }
QString fileName() const { return m_fileName; }
bool isNew() const { return m_new; }
bool isModified() const;
void setModified(bool modified);
/// Empties the document and makes it a new unnamed document.
void clear();
bool load(const QString &filename);
/// Save the document under its current name, a file save dialog will be shown if this is a new document
bool save(QWidget *parent);
/// Saves the document under a new name and continue editing the document under this new name.
bool saveAs(QWidget *parent);
/// Save the document under a new name but continue editing the document under its old name.
bool saveCopyAs(QWidget *parent);
void addEditor(QWidget *editor);
void removeEditor(QWidget *editor);
const QList<QWidget*> &editors() const { return m_editors; }
signals:
void modifiedChanged(bool modified);
void fileNameChanged();
private:
QTextDocument *m_document;
SqlSyntaxHighlighter *m_highlighter;
QString m_fileName;
bool m_new = true;
QList<QWidget*> m_editors;
void setFileName(const QString &filename);
bool saveSqlTo(const QString &filename);
QString promptUserForSaveSqlFilename(QWidget *parent);
};
#endif // SQLDOCUMENT_H