Qt-Advanced-Docking-System/AdvancedDockingSystem/include/ads/FloatingWidget.h

#ifndef FLOATINGWIDGET_H
#define FLOATINGWIDGET_H

#include <QWidget>
class QBoxLayout;

#include "ads/API.h"
#include "ads/SectionContent.h"

ADS_NAMESPACE_BEGIN
class MainContainerWidget;
class SectionTitleWidget;
class SectionContentWidget;
class InternalContentData;
class SectionWidget;

// FloatingWidget holds and displays SectionContent as a floating window.
// It can be resized, moved and dropped back into a SectionWidget.
class FloatingWidget : public QWidget
{
	Q_OBJECT

	friend class MainContainerWidget;

public:
	FloatingWidget(MainContainerWidget* container, SectionContent::RefPtr sc, SectionTitleWidget* titleWidget, SectionContentWidget* contentWidget, QWidget* parent = NULL);
    FloatingWidget(SectionWidget* sectionWidget);
    virtual ~FloatingWidget();

	SectionContent::RefPtr content() const { return _content; }

	/**
	 * Returns true, if this floating widget is dragged right now.
	 * That means, left mouse button is down in the title widget
	 */
	bool isDraggingActive() const;

	/**
	 * Returns the current zOrderIndex
	 */
	unsigned int zOrderIndex() const;

public://private:
	bool takeContent(InternalContentData& data);

protected:
	virtual void changeEvent(QEvent *event) override;

private slots:
	void onCloseButtonClicked();

private:
	MainContainerWidget* _container;
	SectionContent::RefPtr _content;
	SectionTitleWidget* _titleWidget;
	SectionContentWidget* _contentWidget;

	QBoxLayout* _titleLayout;
	unsigned int m_zOrderIndex = 0;
	static unsigned int zOrderCounter;
};

ADS_NAMESPACE_END
#endif