collapsible_section.h

/* collapsible_section.h
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#ifndef COLLAPSIBLE_SECTION_H
#define COLLAPSIBLE_SECTION_H
 
#include <QFont>
#include <QFrame>
#include <QToolButton>
#include <QVBoxLayout>
#include <QWidget>
 
class QHBoxLayout;

class CollapsibleSection : public QWidget
{
    Q_OBJECT
 
  public:
    explicit CollapsibleSection(const QString &title = QString(),
                                QWidget *parent = nullptr);

    void setContentWidget(QWidget *contentWidget);

    void setExpanded(bool expanded);

    bool isExpanded() const;

    void setTitle(const QString &title);

    int headerHeight() const;

    int titleButtonHeight() const;

    QFont titleButtonFont() const;

    void setHeaderTrailingWidget(QWidget *widget);
 
  signals:
    void toggled(bool expanded);

    void titleMetricsChanged();
 
  private slots:
    void onToggle(bool checked);

    void refreshTitleMetrics();
 
  private:
    void applyTitleMetrics();
 
    QToolButton *toggleButton;
    QFrame *headerLine;
    QHBoxLayout *headerLayout_ = nullptr;
    QWidget *headerContainer_ = nullptr;
    QWidget *contentArea;
    QVBoxLayout *mainLayout;
    QWidget *headerTrailingWidget_ = nullptr;
    int savedHeight;
    bool expanded_ = false;
    int titleH_ = 0;
};
 
#endif // COLLAPSIBLE_SECTION_H