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** Copyright (C) 2016 The Qt Company Ltd.
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** This file is part of Qt Creator.
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** GNU General Public License Usage
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** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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#pragma once

#include "core_global.h"
#include "icontext.h"

#include <utils/outputformat.h>

#include <QElapsedTimer>
#include <QPlainTextEdit>
#include <QTimer>

namespace Utils { class OutputFormatter; }

namespace Core {

namespace Internal { class OutputWindowPrivate; }

class CORE_EXPORT OutputWindow : public QPlainTextEdit
{
    Q_OBJECT

public:
    enum class FilterModeFlag {
        Default       = 0x00, // Plain text, non case sensitive, for initialization
        RegExp        = 0x01,
        CaseSensitive = 0x02,
    };
    Q_DECLARE_FLAGS(FilterModeFlags, FilterModeFlag)

    OutputWindow(Context context, const QString &settingsKey, QWidget *parent = nullptr);
    ~OutputWindow() override;

    Utils::OutputFormatter *formatter() const;
    void setFormatter(Utils::OutputFormatter *formatter);

    void appendMessage(const QString &out, Utils::OutputFormat format);
    /// appends a \p text using \p format without using formater
    void appendText(const QString &text, const QTextCharFormat &format = QTextCharFormat());

    void grayOutOldContent();
    void clear();

    void showEvent(QShowEvent *) override;

    void scrollToBottom();

    void setMaxCharCount(int count);
    int maxCharCount() const;

    void setBaseFont(const QFont &newFont);
    float fontZoom() const;
    void setFontZoom(float zoom);
    void resetZoom() { setFontZoom(0); }
    void setWheelZoomEnabled(bool enabled);

    void updateFilterProperties(const QString &filterText, Qt::CaseSensitivity caseSensitivity, bool regexp);

signals:
    void wheelZoom();

public slots:
    void setWordWrapEnabled(bool wrap);

protected:
    bool isScrollbarAtBottom() const;

    void mousePressEvent(QMouseEvent *e) override;
    void mouseReleaseEvent(QMouseEvent *e) override;
    void mouseMoveEvent(QMouseEvent *e) override;
    void resizeEvent(QResizeEvent *e) override;
    void keyPressEvent(QKeyEvent *ev) override;
    void wheelEvent(QWheelEvent *e) override;

private:
    using QPlainTextEdit::setFont; // call setBaseFont instead, which respects the zoom factor
    QTimer m_scrollTimer;
    QElapsedTimer m_lastMessage;
    void enableUndoRedo();
    QString doNewlineEnforcement(const QString &out);
    void filterNewContent();

    Internal::OutputWindowPrivate *d;
};

} // namespace Core