qtwidgets/views/TitleBar.h

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/*
  This file is part of KDDockWidgets.
 
  SPDX-FileCopyrightText: 2019 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
  Author: Sérgio Martins <sergio.martins@kdab.com>
 
  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
 
  Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
 
#ifndef KD_TITLEBAR_QTWIDGETS_H
#define KD_TITLEBAR_QTWIDGETS_H
 
#pragma once
 
#include "View.h"
#include "kddockwidgets/core/views/TitleBarViewInterface.h"
 
#include <QToolButton>
 
QT_BEGIN_NAMESPACE
class QHBoxLayout;
class QLabel;
QT_END_NAMESPACE
 
 
class TestQtWidgets;
 
namespace KDDockWidgets::QtWidgets {
 
class DOCKS_EXPORT TitleBar : public View<QWidget>,
                              public Core::TitleBarViewInterface
{
    Q_OBJECT
public:
    explicit TitleBar(Core::TitleBar *controller, Core::View *parent = nullptr);
 
    explicit TitleBar(QWidget *parent = nullptr);
 
    ~TitleBar() override;
 
    Core::TitleBar *titleBar() const;
 
#ifdef DOCKS_DEVELOPER_MODE
    // The following are needed for the unit-tests
    bool isCloseButtonVisible() const override;
    bool isCloseButtonEnabled() const override;
    bool isFloatButtonVisible() const override;
#endif
 
Q_SIGNALS:
    void isFocusedChanged();
 
protected:
    void init() override;
    void paintEvent(QPaintEvent *) override;
    void mouseDoubleClickEvent(QMouseEvent *) override;
    QSize sizeHint() const override;
    void focusInEvent(QFocusEvent *) override;
 
    friend class KDDockWidgets::Core::TitleBar;
    int buttonAreaWidth() const;
    QRect iconRect() const;
    void updateMargins();
 
    void updateMaximizeButton(bool visible, bool enabled, TitleBarButtonType);
    void updateAutoHideButton(bool visible, bool enabled, TitleBarButtonType);
    void updateMinimizeButton(bool visible, bool enabled);
 
    virtual bool hasCustomLayout() const
    {
        return false;
    }
 
    QHBoxLayout *const m_layout;
    QAbstractButton *m_closeButton = nullptr;
    QAbstractButton *m_floatButton = nullptr;
    QAbstractButton *m_maximizeButton = nullptr;
    QAbstractButton *m_minimizeButton = nullptr;
    QAbstractButton *m_autoHideButton = nullptr;
    QLabel *m_dockWidgetIcon = nullptr;
 
private:
    friend class ::TestQtWidgets;
    // Private class just to hide KDBindings usage
    class Private;
    Private *const d;
};
 
class Button : public QToolButton
{
    Q_OBJECT
public:
    explicit Button(QWidget *parent)
        : QToolButton(parent)
    {
        setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
    }
 
    ~Button() override;
 
protected:
    friend class QtWidgets::TitleBar;
 
    bool event(QEvent *ev) override;
    QSize sizeHint() const override;
    void paintEvent(QPaintEvent *) override;
 
    bool m_inEventHandler = false;
};
 
}
 
#endif