forked from osmocom/wireshark
92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/** @file
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef SYNTAX_LINE_EDIT_H
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#define SYNTAX_LINE_EDIT_H
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#include <QLineEdit>
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class QCompleter;
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class QStringListModel;
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// Autocompletion is partially implemented. Subclasses must:
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// - Provide buildCompletionList
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// - Call setCompletionTokenChars
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class SyntaxLineEdit : public QLineEdit
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{
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Q_OBJECT
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Q_PROPERTY(SyntaxState syntaxState READ syntaxState)
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Q_ENUMS(SyntaxState)
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public:
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explicit SyntaxLineEdit(QWidget *parent = 0);
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enum SyntaxState { Empty, Busy, Invalid, Deprecated, Valid };
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SyntaxState syntaxState() const { return syntax_state_; }
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void setSyntaxState(SyntaxState state = Empty);
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QString syntaxErrorMessage();
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// Error message with filter expression and location error.
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QString syntaxErrorMessageFull();
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QString styleSheet() const;
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QString deprecatedToken();
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void setCompleter(QCompleter *c);
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QCompleter *completer() const { return completer_; }
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void allowCompletion(bool enabled);
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static QString createSyntaxErrorMessageFull(const QString &filter,
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const QString &err_msg,
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qsizetype loc_start, size_t loc_length);
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public slots:
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void setStyleSheet(const QString &style_sheet);
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// Insert filter text at the current position, adding spaces where needed.
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void insertFilter(const QString &filter);
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// Built-in syntax checks. Connect textChanged to these as needed.
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bool checkDisplayFilter(QString filter);
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void checkFieldName(QString field);
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void checkCustomColumn(QString fields);
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void checkInteger(QString number);
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protected:
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QCompleter *completer_;
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QStringListModel *completion_model_;
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void setCompletionTokenChars(const QString &token_chars) { token_chars_ = token_chars; }
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bool isComplexFilter(const QString &filter);
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virtual void buildCompletionList(const QString &field_word, const QString &preamble) { Q_UNUSED(field_word); Q_UNUSED(preamble); }
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// x = Start position, y = length
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QPoint getTokenUnderCursor();
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// Returns (preamble, token)
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QStringList splitLineUnderCursor();
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virtual bool event(QEvent *event);
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void completionKeyPressEvent(QKeyEvent *event);
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void completionFocusInEvent(QFocusEvent *event);
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virtual void focusOutEvent(QFocusEvent *event);
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virtual void paintEvent(QPaintEvent *event);
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private:
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SyntaxState syntax_state_;
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QString style_sheet_;
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QString state_style_sheet_;
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QString syntax_error_message_;
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QString syntax_error_message_full_;
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QString token_chars_;
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bool completion_enabled_;
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private slots:
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void insertFieldCompletion(const QString &completion_text);
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signals:
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};
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#endif // SYNTAX_LINE_EDIT_H
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