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A simple code editor example provided by Qt [1] was included in the tool. It is very convenient to have a text pad to include comments on the traces displayed. The notes are saved into the session file and they are restored when a session file is opened. [1] https://doc.qt.io/qt-5/qtwidgets-widgets-codeeditor-example.html
120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef CODEEDITOR_H
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#define CODEEDITOR_H
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#include <QPlainTextEdit>
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QT_BEGIN_NAMESPACE
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class QPaintEvent;
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class QResizeEvent;
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class QSize;
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class QWidget;
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QT_END_NAMESPACE
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class LineNumberArea;
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//![codeeditordefinition]
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class CodeEditor : public QPlainTextEdit
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{
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Q_OBJECT
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public:
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CodeEditor(QWidget *parent = nullptr);
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void lineNumberAreaPaintEvent(QPaintEvent *event);
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int lineNumberAreaWidth();
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QString getText() const { return toPlainText(); }
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void loadText(const QString& text);
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protected:
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void resizeEvent(QResizeEvent *event) override;
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private slots:
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void updateLineNumberAreaWidth(int newBlockCount);
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void highlightCurrentLine();
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void updateLineNumberArea(const QRect &rect, int dy);
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private:
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QWidget *lineNumberArea;
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};
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//![codeeditordefinition]
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//![extraarea]
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class LineNumberArea : public QWidget
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{
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public:
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LineNumberArea(CodeEditor *editor) : QWidget(editor), codeEditor(editor)
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{}
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QSize sizeHint() const override
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{
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return QSize(codeEditor->lineNumberAreaWidth(), 0);
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}
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protected:
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void paintEvent(QPaintEvent *event) override
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{
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codeEditor->lineNumberAreaPaintEvent(event);
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}
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private:
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CodeEditor *codeEditor;
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};
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//![extraarea]
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#endif
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