code_editor_minimap.h

Go to the documentation of this file.

// MIT License
// 
// Copyright (c) 2019 Ruhr University Bochum, Chair for Embedded Security. All Rights reserved.
// Copyright (c) 2019 Marc Fyrbiak, Sebastian Wallat, Max Hoffmann ("ORIGINAL AUTHORS"). All rights reserved.
// Copyright (c) 2021 Max Planck Institute for Security and Privacy. All Rights reserved.
// Copyright (c) 2021 Jörn Langheinrich, Julian Speith, Nils Albartus, René Walendy, Simon Klix ("ORIGINAL AUTHORS"). All Rights reserved.
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
 
#pragma once
 
#include <QWidget>
 
class QTextDocument;
 
namespace hal
{
 
    class CodeEditor;
    class MinimapScrollbar;
 
    class CodeEditorMinimap : public QWidget
    {
        Q_OBJECT
 
    public:
        explicit CodeEditorMinimap(CodeEditor* editor);
 
        MinimapScrollbar* scrollbar();
 
        QTextDocument* document();
 
        void adjustSliderHeight(int viewport_height);
 
        void adjustSliderHeight(qreal ratio);
 
        void adjustSliderHeight(int first_visible_block, int last_visible_block);
 
        void repolish();
 
    public Q_SLOTS:
        void handleDocumentSizeChanged(const QSizeF& new_size);
 
        void handleContentsChange(int position, int chars_removed, int chars_added);
 
    protected:
        void paintEvent(QPaintEvent* event) override;
 
        void resizeEvent(QResizeEvent* event) override;
 
        void mousePressEvent(QMouseEvent* event) override;
 
        void wheelEvent(QWheelEvent* event) override;
 
    private:
        void resizeScrollbar();
 
        CodeEditor* mEditor;
        QTextDocument* mDocument;
        MinimapScrollbar* mScrollbar;
 
        int mDocumentHeight;
        qreal mOffset;
    };
}