#ifndef FUNCTIONSHEET_H

#define FUNCTIONSHEET_H

#include "tcommon.h"

#include "functiontreeviewer.h"

#include "spreadsheetviewer.h"

#include "functionselection.h"

#include "toonzqt/lineedit.h"

#include <qwidget></qwidget>

#include <set></set>

#undef DVAPI

#undef DVVAR

#ifdef TOONZQT_EXPORTS

#define DVAPI DV_EXPORT_API

#define DVVAR DV_EXPORT_VAR

#else

#define DVAPI DV_IMPORT_API

#define DVVAR DV_IMPORT_VAR

#endif

class FunctionSheet;

class TDoubleParam;

class TFrameHandle;

class FunctionSelection;

class FunctionSheetRowViewer : public Spreadsheet::RowPanel

{

	FunctionSheet *m_sheet;

public:

	FunctionSheetRowViewer(FunctionSheet *parent);

protected:

	void paintEvent(QPaintEvent *);

	void mousePressEvent(QMouseEvent *);

	void mouseReleaseEvent(QMouseEvent *);

	void mouseMoveEvent(QMouseEvent *);

	void contextMenuEvent(QContextMenuEvent *);

};

class FunctionSheetColumnHeadViewer : public Spreadsheet::ColumnPanel

{

	FunctionSheet *m_sheet;

	//enable drag and drop the expression arguments

	QPoint m_dragStartPosition;

	FunctionTreeModel::Channel *m_draggingChannel;

public:

	FunctionSheetColumnHeadViewer(FunctionSheet *parent);

protected:

	void paintEvent(QPaintEvent *);

	void mousePressEvent(QMouseEvent *);

	//update the tooltip

	void mouseMoveEvent(QMouseEvent *);

	void contextMenuEvent(QContextMenuEvent *);

};

class FunctionSheetCellViewer : public Spreadsheet::CellPanel

{

	Q_OBJECT

	FunctionSheet *m_sheet;

	DVGui::LineEdit *m_lineEdit;

	int m_editRow, m_editCol;

public:

	FunctionSheetCellViewer(FunctionSheet *parent);

	Spreadsheet::DragTool *createDragTool(QMouseEvent *);

protected:

	void drawCells(QPainter &p, int r0, int c0, int r1, int c1);

	void mouseDoubleClickEvent(QMouseEvent *);

	void mousePressEvent(QMouseEvent *);

	void mouseReleaseEvent(QMouseEvent *);

	void mouseMoveEvent(QMouseEvent *);

	void openContextMenu(QMouseEvent *);

private slots:

	void onCellEditorEditingFinished();

};

class FunctionSheet : public SpreadsheetViewer

{

	Q_OBJECT

public:

	FunctionSheet(QWidget *parent = 0);

	~FunctionSheet();

	void setModel(FunctionTreeModel *model);

	FunctionTreeModel *getModel() const { return m_functionTreeModel; }

	void setViewer(FunctionViewer *viewer);

	FunctionViewer *getViewer() const { return m_functionViewer; }

	void setCurrentFrame(int frame);

	int getCurrentFrame() const;

	int getChannelCount();

	TDoubleParam *getCurve(int column);

	FunctionTreeModel::Channel *getChannel(int column);

	QRect getSelectedCells() const;

	void selectCells(const QRect &selectedCells);

	FunctionSelection *getSelection() const { return m_selection; }

	void setSelection(FunctionSelection *selection); // does NOT get ownership

	QString getSelectedParamName();

	int getColumnIndexByCurve(TDoubleParam *param) const;

	bool anyWidgetHasFocus();

protected:

	void showEvent(QShowEvent *e);

	void hideEvent(QHideEvent *e);

private:

	FunctionSheetRowViewer *m_rowViewer;

	FunctionSheetColumnHeadViewer *m_columnHeadViewer;

	FunctionSheetCellViewer *m_cellViewer;

	FunctionSelection *m_selection;

	FunctionTreeModel *m_functionTreeModel;

	FunctionViewer *m_functionViewer;

	QRect m_selectedCells;

public slots:

	void updateAll();

	void onFrameSwitched();

	/*--- カレントChannelが切り替わったら、NumericalColumnsがそのChannelを表示できるようにスクロールする。---*/

	void onCurrentChannelChanged(FunctionTreeModel::Channel *);

};

#endif