#pragma once
#include <QWidget>
#include <QScrollArea>
#include <QHBoxLayout>
#include <QLabel>
#include <QPushButton>
#include <QGridLayout>
#include <QImage>
#include <QString>
#include <QPoint>
#include <vector>
#include <poppler-qt5.h>
#include "pdf_page_widget.h"

class FileWidget : public QWidget {
  Q_OBJECT
public:
  FileWidget(QWidget* parent = 0);
  QSize sizeHint() const;

  void addChild(QString name);
  void addChild(QImage* image);

protected:
  void dragEnterEvent(QDragEnterEvent* event);
  void dropEvent(QDropEvent* event);
  void mousePressEvent(QMouseEvent* event);
private:
  std::vector<PDFPageWidget*> child;

  QHBoxLayout* mainLayout;

  int  findClickEventChild(QPoint pos);
  int  findChildPositionInLayout(PDFPageWidget* child);
  int  getChildCount() const;
};

class PDFFileWidget : public QWidget {
  Q_OBJECT
  Q_PROPERTY(bool collapsed READ isCollapsed WRITE setCollapsed)

public:
  PDFFileWidget(QWidget* parent = 0);
  /*QSize sizeHint() const;*/

  void setAncestor(QWidget* ancestor) { this->ancestor = ancestor; }
  void setDocument(Poppler::Document* document, QString filename);

  bool isCollapsed(void) { return collapsed; }
  void setCollapsed(bool collapsed);

protected:
  

private slots:
  void collapsedButtonClick();

private:
  QGridLayout* topLayout;

  QLabel*       widgetName;
  QPushButton*  collapseButton;
  QScrollArea*  scrollArea;
  
  FileWidget*   mainChild;
  QWidget*      ancestor;
  bool          collapsed;
};