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/* syntax_line_edit.h
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef SYNTAX_LINE_EDIT_H
#define SYNTAX_LINE_EDIT_H
#include <QLineEdit>
class QCompleter;
class QStringListModel;
// Autocompletion is partially implemented. Subclasses must:
// - Provide buildCompletionList
// - Call setCompletionTokenChars
class SyntaxLineEdit : public QLineEdit
{
Q_OBJECT
Q_PROPERTY(SyntaxState syntaxState READ syntaxState)
Q_ENUMS(SyntaxState)
public:
explicit SyntaxLineEdit(QWidget *parent = 0);
enum SyntaxState { Empty, Busy, Invalid, Deprecated, Valid };
SyntaxState syntaxState() const { return syntax_state_; }
void setSyntaxState(SyntaxState state = Empty);
QString syntaxErrorMessage();
QString styleSheet() const;
QString deprecatedToken();
void setCompleter(QCompleter *c);
QCompleter *completer() const { return completer_; }
public slots:
void setStyleSheet(const QString &style_sheet);
// Insert filter text at the current position, adding spaces where needed.
void insertFilter(const QString &filter);
// Built-in syntax checks. Connect textChanged to these as needed.
void checkDisplayFilter(QString filter);
void checkFieldName(QString field);
void checkCustomColumn(QString fields);
void checkInteger(QString number);
protected:
QCompleter *completer_;
QStringListModel *completion_model_;
void setCompletionTokenChars(const QString &token_chars) { token_chars_ = token_chars; }
bool isComplexFilter(const QString &filter);
virtual void buildCompletionList(const QString&) { }
// x = Start position, y = length
QPoint getTokenUnderCursor();
virtual bool event(QEvent *event);
void completionKeyPressEvent(QKeyEvent *event);
void completionFocusInEvent(QFocusEvent *event);
virtual void focusOutEvent(QFocusEvent *event);
private:
SyntaxState syntax_state_;
QString style_sheet_;
QString state_style_sheet_;
QString syntax_error_message_;
QString token_chars_;
QColor busy_fg_;
private slots:
void insertFieldCompletion(const QString &completion_text);
signals:
};
#endif // SYNTAX_LINE_EDIT_H
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