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// TnzTools includes
#include "tools/toolutils.h"
#include "tools/cursors.h"
#include "tools/tool.h"
#include "tools/toolutils.h"
#include "tools/toolhandle.h"

#include "bluredbrush.h"

// TnzQt includes
#include "toonzqt/icongenerator.h"

// TnzLib includes
#include "toonz/strokegenerator.h"
#include "toonz/ttilesaver.h"
#include "toonz/txshsimplelevel.h"
#include "toonz/observer.h"
#include "toonz/toonzimageutils.h"
#include "toonz/levelproperties.h"
#include "toonz/stage2.h"
#include "toonz/ttileset.h"
#include "toonz/rasterstrokegenerator.h"
#include "toonz/txsheethandle.h"
#include "toonz/tframehandle.h"
#include "toonz/txshlevelhandle.h"
#include "toonz/tpalettehandle.h"
#include "toonz/tobjecthandle.h"
#include "toonz/tcolumnhandle.h"

// TnzBase includes
#include "tenv.h"

// TnzCore includes
#include "tstroke.h"
#include "tmathutil.h"
#include "drawutil.h"
#include "tcolorstyles.h"
#include "tundo.h"
#include "tvectorimage.h"
#include "ttoonzimage.h"
#include "tproperty.h"
#include "tgl.h"
#include "trop.h"
#include "tinbetween.h"
#include "ttile.h"
#include "tropcm.h"
#include "timage_io.h"

// Qt includes
#include <QCoreApplication> // For Qt translation support
#include <QPainter>

using namespace ToolUtils;

#define LINES L"Lines"
#define AREAS L"Areas"
#define ALL L"Lines & Areas"

#define NORMALERASE L"Normal"
#define RECTERASE L"Rectangular"
#define FREEHANDERASE L"Freehand"
#define POLYLINEERASE L"Polyline"

TEnv::DoubleVar EraseSize("InknpaintEraseSize", 10);
TEnv::StringVar EraseType("InknpaintEraseType", "Normal");
TEnv::IntVar EraseSelective("InknpaintEraseSelective", 0);
TEnv::IntVar EraseInvert("InknpaintEraseInvert", 0);
TEnv::IntVar EraseRange("InknpaintEraseRange", 0);
TEnv::StringVar EraseColorType("InknpaintEraseColorType", "Lines");
TEnv::DoubleVar EraseHardness("EraseHardness", 100);
TEnv::IntVar ErasePencil("InknpaintErasePencil", 0);

namespace
{

//==============================================================================
//   Undo dei Tools
//==============================================================================

/*!
	Viene realizzata la funzione di "UNDO" per il cancellino nell'opzione RECTERASE
*/

class RectRasterUndo : public TRasterUndo
{
	TRectD m_modifyArea;
	TStroke *m_stroke;
	int m_styleId;
	std::wstring m_colorType;
	std::wstring m_eraseType;
	bool m_selective;
	bool m_invert;

public:
	RectRasterUndo(TTileSetCM32 *tileSet, const TRectD &modifyArea, TStroke stroke,
				   int styleId, std::wstring eraseType, std::wstring colorType,
				   TXshSimpleLevel *level, bool selective, bool invert,
				   const TFrameId &frameId)
		: TRasterUndo(tileSet, level, frameId, false, false, 0), m_modifyArea(modifyArea), m_styleId(styleId), m_eraseType(eraseType), m_colorType(colorType), m_selective(selective), m_invert(invert)
	{
		m_stroke = new TStroke(stroke);
	}

	void redo() const
	{
		TToonzImageP ti = getImage();
		if (!ti)
			return;
		bool eraseInk = m_colorType == LINES || m_colorType == ALL;
		bool erasePaint = m_colorType == AREAS || m_colorType == ALL;
		if (m_eraseType == RECTERASE) {
			TRect rect = ToonzImageUtils::eraseRect(ti, m_modifyArea, m_styleId, eraseInk, erasePaint);
			if (!rect.isEmpty())
				ToolUtils::updateSaveBox(m_level, m_frameId);

		} else if (m_eraseType == FREEHANDERASE || m_eraseType == POLYLINEERASE) {
			if (m_level) {
				TPoint pos;
				TRaster32P ras = convertStrokeToImage(m_stroke, ti->getRaster()->getBounds(), pos);
				if (!ras)
					return;
				ToonzImageUtils::eraseImage(ti, ras, pos, m_invert, eraseInk, erasePaint, m_selective, m_styleId);
				ToolUtils::updateSaveBox(m_level, m_frameId);
			}
		}
		TTool::getApplication()->getCurrentXsheet()->notifyXsheetChanged();
		notifyImageChanged();
	}

	int getSize() const
	{
		return TRasterUndo::getSize() +
			   sizeof(this) +
			   m_stroke->getControlPointCount() * sizeof(TThickPoint) +
			   100;
	}

	~RectRasterUndo()
	{
		if (m_stroke)
			delete m_stroke;
	}

	QString getToolName()
	{
		return QString("Eraser Tool (Rect)");
	}
	int getHistoryType()
	{
		return HistoryType::EraserTool;
	}
};

//=====================================================================
/*!
	Viene realizzata la funzione di "UNDO" per il cancellino nell'opzione NORMALERAS
*/
class RasterEraserUndo : public TRasterUndo
{
	std::vector<TThickPoint> m_points;
	int m_styleId;
	bool m_selective;
	bool m_isPencil;
	ColorType m_colorType;
	int m_colorSelected;

public:
	RasterEraserUndo(TTileSetCM32 *tileSet, const std::vector<TThickPoint> &points,
					 ColorType colorType, int styleId, bool selective,
					 int colorSelected, TXshSimpleLevel *level,
					 const TFrameId &frameId, bool isPencil)
		: TRasterUndo(tileSet, level, frameId, false, false, 0), m_points(points), m_styleId(styleId), m_selective(selective), m_colorType(colorType), m_colorSelected(colorSelected), m_isPencil(isPencil)
	{
	}

	void redo() const
	{
		TToonzImageP image = m_level->getFrame(m_frameId, true);
		TRasterCM32P ras = image->getRaster();
		RasterStrokeGenerator m_rasterTrack(ras, ERASE, m_colorType, 0, m_points[0], m_selective, m_colorSelected, !m_isPencil);
		m_rasterTrack.setPointsSequence(m_points);
		m_rasterTrack.generateStroke(m_isPencil);
		image->setSavebox(image->getSavebox() + m_rasterTrack.getBBox(m_rasterTrack.getPointsSequence()));
		ToolUtils::updateSaveBox();
		TTool::getApplication()->getCurrentXsheet()->notifyXsheetChanged();
		notifyImageChanged();
	}

	int getSize() const
	{
		return sizeof(*this) + TRasterUndo::getSize();
	}

	QString getToolName()
	{
		return QString("Eraser Tool");
	}
	int getHistoryType()
	{
		return HistoryType::EraserTool;
	}
};

//=====================================================================

class RasterBluredEraserUndo : public TRasterUndo
{
	std::vector<TThickPoint> m_points;
	int m_styleId;
	bool m_selective;
	int m_size;
	double m_hardness;
	std::wstring m_mode;

public:
	RasterBluredEraserUndo(TTileSetCM32 *tileSet,
						   const std::vector<TThickPoint> &points,
						   int styleId, bool selective,
						   TXshSimpleLevel *level, const TFrameId &frameId,
						   int size, double hardness, const std::wstring &mode)
		: TRasterUndo(tileSet, level, frameId, false, false, 0), m_points(points), m_styleId(styleId), m_selective(selective), m_size(size), m_hardness(hardness), m_mode(mode)
	{
	}

	void redo() const
	{
		if (m_points.size() == 0)
			return;
		TToonzImageP image = getImage();
		TRasterCM32P ras = image->getRaster();
		TRasterCM32P backupRas = ras->clone();
		TRaster32P workRaster(ras->getSize());
		QRadialGradient brushPad = ToolUtils::getBrushPad(m_size, m_hardness);
		workRaster->clear();
		BluredBrush brush(workRaster, m_size, brushPad, false);
		std::vector<TThickPoint> points;
		points.push_back(m_points[0]);
		TRect bbox = brush.getBoundFromPoints(points);
		brush.addPoint(m_points[0], 1);
		brush.eraseDrawing(ras, ras, bbox, m_selective, m_styleId, m_mode);
		if (m_points.size() > 1) {
			points.clear();
			points.push_back(m_points[0]);
			points.push_back(m_points[1]);
			bbox = brush.getBoundFromPoints(points);
			brush.addArc(m_points[0], (m_points[0] + m_points[1]) * 0.5, m_points[1], 1, 1);
			brush.eraseDrawing(ras, backupRas, bbox, m_selective, m_styleId, m_mode);
			int i;
			for (i = 1; i + 2 < (int)m_points.size(); i = i + 2) {
				points.clear();
				points.push_back(m_points[i]);
				points.push_back(m_points[i + 1]);
				points.push_back(m_points[i + 2]);
				bbox = brush.getBoundFromPoints(points);
				brush.addArc(m_points[i], m_points[i + 1], m_points[i + 2], 1, 1);
				brush.eraseDrawing(ras, backupRas, bbox, m_selective, m_styleId, m_mode);
			}
		}
		ToolUtils::updateSaveBox();
		TTool::getApplication()->getCurrentXsheet()->notifyXsheetChanged();
		notifyImageChanged();
	}

	int getSize() const
	{
		return sizeof(*this) + TRasterUndo::getSize();
	}

	QString getToolName()
	{
		return QString("Eraser Tool");
	}
	int getHistoryType()
	{
		return HistoryType::EraserTool;
	}
};

void eraseStroke(const TToonzImageP &ti, TStroke *stroke, std::wstring eraseType,
				 std::wstring colorType, bool invert, bool selective,
				 int styleId, const TXshSimpleLevelP &level, const TFrameId &frameId)
{
	assert(stroke);
	TPoint pos;
	TRasterCM32P ras = ti->getRaster();
	TRaster32P image = convertStrokeToImage(stroke, ras->getBounds(), pos);
	if (!image)
		return;

	TRect rasterErasedArea = image->getBounds() + pos;
	TRect area;
	if (!invert)
		area = rasterErasedArea.enlarge(2);
	else
		area = ras->getBounds();
	TTileSetCM32 *tileSet = new TTileSetCM32(ras->getSize());
	tileSet->add(ras, area);
	TUndoManager::manager()->add(new RectRasterUndo(tileSet, convert(area), *stroke,
													selective ? styleId : -1, eraseType, colorType, level.getPointer(),
													selective, invert, frameId));
	bool eraseInk = colorType == LINES || colorType == ALL;
	bool erasePaint = colorType == AREAS || colorType == ALL;
	ToonzImageUtils::eraseImage(ti, image, pos, invert, eraseInk, erasePaint, selective, styleId);
}

//-----------------------------------------------------------------------------

void drawLine(const TPointD &point, const TPointD &centre, bool horizontal, bool isDecimal)
{
	if (!isDecimal) {
		if (horizontal) {
			tglDrawSegment(TPointD(point.x - 1.5, point.y + 0.5) + centre, TPointD(point.x - 0.5, point.y + 0.5) + centre);
			tglDrawSegment(TPointD(point.y - 0.5, -point.x + 1.5) + centre, TPointD(point.y - 0.5, -point.x + 0.5) + centre);
			tglDrawSegment(TPointD(-point.x + 0.5, -point.y + 0.5) + centre, TPointD(-point.x - 0.5, -point.y + 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 0.5, point.x - 0.5) + centre, TPointD(-point.y - 0.5, point.x + 0.5) + centre);

			tglDrawSegment(TPointD(point.y - 0.5, point.x + 0.5) + centre, TPointD(point.y - 0.5, point.x - 0.5) + centre);
			tglDrawSegment(TPointD(point.x - 0.5, -point.y + 0.5) + centre, TPointD(point.x - 1.5, -point.y + 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 0.5, -point.x + 0.5) + centre, TPointD(-point.y - 0.5, -point.x + 1.5) + centre);
			tglDrawSegment(TPointD(-point.x - 0.5, point.y + 0.5) + centre, TPointD(-point.x + 0.5, point.y + 0.5) + centre);
		} else {
			tglDrawSegment(TPointD(point.x - 1.5, point.y + 1.5) + centre, TPointD(point.x - 1.5, point.y + 0.5) + centre);
			tglDrawSegment(TPointD(point.x - 1.5, point.y + 0.5) + centre, TPointD(point.x - 0.5, point.y + 0.5) + centre);
			tglDrawSegment(TPointD(point.y + 0.5, -point.x + 1.5) + centre, TPointD(point.y - 0.5, -point.x + 1.5) + centre);
			tglDrawSegment(TPointD(point.y - 0.5, -point.x + 1.5) + centre, TPointD(point.y - 0.5, -point.x + 0.5) + centre);
			tglDrawSegment(TPointD(-point.x + 0.5, -point.y - 0.5) + centre, TPointD(-point.x + 0.5, -point.y + 0.5) + centre);
			tglDrawSegment(TPointD(-point.x + 0.5, -point.y + 0.5) + centre, TPointD(-point.x - 0.5, -point.y + 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 1.5, point.x - 0.5) + centre, TPointD(-point.y - 0.5, point.x - 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 0.5, point.x - 0.5) + centre, TPointD(-point.y - 0.5, point.x + 0.5) + centre);

			tglDrawSegment(TPointD(point.y + 0.5, point.x - 0.5) + centre, TPointD(point.y - 0.5, point.x - 0.5) + centre);
			tglDrawSegment(TPointD(point.y - 0.5, point.x - 0.5) + centre, TPointD(point.y - 0.5, point.x + 0.5) + centre);
			tglDrawSegment(TPointD(point.x - 1.5, -point.y - 0.5) + centre, TPointD(point.x - 1.5, -point.y + 0.5) + centre);
			tglDrawSegment(TPointD(point.x - 1.5, -point.y + 0.5) + centre, TPointD(point.x - 0.5, -point.y + 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 1.5, -point.x + 1.5) + centre, TPointD(-point.y - 0.5, -point.x + 1.5) + centre);
			tglDrawSegment(TPointD(-point.y - 0.5, -point.x + 1.5) + centre, TPointD(-point.y - 0.5, -point.x + 0.5) + centre);
			tglDrawSegment(TPointD(-point.x + 0.5, point.y + 1.5) + centre, TPointD(-point.x + 0.5, point.y + 0.5) + centre);
			tglDrawSegment(TPointD(-point.x + 0.5, point.y + 0.5) + centre, TPointD(-point.x - 0.5, point.y + 0.5) + centre);
		}
	} else {
		if (horizontal) {
			tglDrawSegment(TPointD(point.x - 0.5, point.y + 0.5) + centre, TPointD(point.x + 0.5, point.y + 0.5) + centre);
			tglDrawSegment(TPointD(point.y + 0.5, point.x - 0.5) + centre, TPointD(point.y + 0.5, point.x + 0.5) + centre);
			tglDrawSegment(TPointD(point.y + 0.5, -point.x + 0.5) + centre, TPointD(point.y + 0.5, -point.x - 0.5) + centre);
			tglDrawSegment(TPointD(point.x + 0.5, -point.y - 0.5) + centre, TPointD(point.x - 0.5, -point.y - 0.5) + centre);
			tglDrawSegment(TPointD(-point.x - 0.5, -point.y - 0.5) + centre, TPointD(-point.x + 0.5, -point.y - 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 0.5, -point.x + 0.5) + centre, TPointD(-point.y - 0.5, -point.x - 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 0.5, point.x - 0.5) + centre, TPointD(-point.y - 0.5, point.x + 0.5) + centre);
			tglDrawSegment(TPointD(-point.x + 0.5, point.y + 0.5) + centre, TPointD(-point.x - 0.5, point.y + 0.5) + centre);
		} else {
			tglDrawSegment(TPointD(point.x - 0.5, point.y + 1.5) + centre, TPointD(point.x - 0.5, point.y + 0.5) + centre);
			tglDrawSegment(TPointD(point.x - 0.5, point.y + 0.5) + centre, TPointD(point.x + 0.5, point.y + 0.5) + centre);
			tglDrawSegment(TPointD(point.y + 1.5, point.x - 0.5) + centre, TPointD(point.y + 0.5, point.x - 0.5) + centre);
			tglDrawSegment(TPointD(point.y + 0.5, point.x - 0.5) + centre, TPointD(point.y + 0.5, point.x + 0.5) + centre);
			tglDrawSegment(TPointD(point.y + 1.5, -point.x + 0.5) + centre, TPointD(point.y + 0.5, -point.x + 0.5) + centre);
			tglDrawSegment(TPointD(point.y + 0.5, -point.x + 0.5) + centre, TPointD(point.y + 0.5, -point.x - 0.5) + centre);
			tglDrawSegment(TPointD(point.x - 0.5, -point.y - 1.5) + centre, TPointD(point.x - 0.5, -point.y - 0.5) + centre);
			tglDrawSegment(TPointD(point.x - 0.5, -point.y - 0.5) + centre, TPointD(point.x + 0.5, -point.y - 0.5) + centre);

			tglDrawSegment(TPointD(-point.x + 0.5, -point.y - 1.5) + centre, TPointD(-point.x + 0.5, -point.y - 0.5) + centre);
			tglDrawSegment(TPointD(-point.x + 0.5, -point.y - 0.5) + centre, TPointD(-point.x - 0.5, -point.y - 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 1.5, -point.x + 0.5) + centre, TPointD(-point.y - 0.5, -point.x + 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 0.5, -point.x + 0.5) + centre, TPointD(-point.y - 0.5, -point.x - 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 1.5, point.x - 0.5) + centre, TPointD(-point.y - 0.5, point.x - 0.5) + centre);
			tglDrawSegment(TPointD(-point.y - 0.5, point.x - 0.5) + centre, TPointD(-point.y - 0.5, point.x + 0.5) + centre);
			tglDrawSegment(TPointD(-point.x + 0.5, point.y + 1.5) + centre, TPointD(-point.x + 0.5, point.y + 0.5) + centre);
			tglDrawSegment(TPointD(-point.x + 0.5, point.y + 0.5) + centre, TPointD(-point.x - 0.5, point.y + 0.5) + centre);
		}
	}
}

//-------------------------------------------------------------------------------------------------------

void drawEmptyCircle(int thick, const TPointD &mousePos, bool isPencil, bool isLxEven, bool isLyEven)
{
	TPointD pos = mousePos;
	if (isLxEven)
		pos.x += 0.5;
	if (isLyEven)
		pos.y += 0.5;
	if (!isPencil)
		tglDrawCircle(pos, (thick)*0.5);
	else {
		int x = 0, y = tround((thick * 0.5) - 0.5);
		int d = 3 - 2 * (int)(thick * 0.5);
		bool horizontal = true, isDecimal = thick % 2 != 0;
		drawLine(TPointD(x, y), pos, horizontal, isDecimal);
		while (y > x) {
			if (d < 0) {
				d = d + 4 * x + 6;
				horizontal = true;
			} else {
				d = d + 4 * (x - y) + 10;
				horizontal = false;
				y--;
			}
			x++;
			drawLine(TPointD(x, y), pos, horizontal, isDecimal);
		}
	}
}

//==================================================================================================
//
//  InkPaintTool class declaration
//
//------------------------------------------------------------------------

class EraserTool : public TTool
{
	Q_DECLARE_TR_FUNCTIONS(EraserTool)

public:
	EraserTool(std::string name);
	~EraserTool()
	{
		if (m_firstStroke)
			delete m_firstStroke;
	}

	ToolType getToolType() const { return TTool::LevelWriteTool; }

	void updateTranslation();

	void draw();

	void update(const TToonzImageP &ti, const TPointD &pos);
	void saveUndo();
	void update(const TToonzImageP &ti, TRectD selArea, const TXshSimpleLevelP &level, bool multi = false,
				const TFrameId &frameId = -1);

	void leftButtonDown(const TPointD &pos, const TMouseEvent &e);
	void leftButtonDrag(const TPointD &pos, const TMouseEvent &e);
	void leftButtonUp(const TPointD &pos, const TMouseEvent &);
	void leftButtonDoubleClick(const TPointD &pos, const TMouseEvent &e);

	void multiAreaEraser(const TXshSimpleLevelP &sl, TFrameId &firstFid, TFrameId &lastFid,
						 TStroke *firstStroke, TStroke *lastStroke);
	void doMultiEraser(const TImageP &img, double t,
					   const TXshSimpleLevelP &sl, const TFrameId &fid,
					   const TVectorImageP &firstImage, const TVectorImageP &lastImage);

	void mouseMove(const TPointD &pos, const TMouseEvent &e);
	void onEnter();
	void onLeave();
	void onActivate();
	bool onPropertyChanged(std::string propertyName);
	void onImageChanged();

	void multiUpdate(const TXshSimpleLevelP &level, TFrameId firstFrameId, TFrameId lastFrameId, TRectD firstRect, TRectD lastRect);

	TPropertyGroup *getProperties(int targetType) { return &m_prop; }

	int getCursorId() const;
	void resetMulti();

	/*-- ドラッグ中にツールが切り替わった場合、処理を終了させる--*/
	void onDeactivate();
	/*-- Brush、PaintBrush、EraserToolがPencilModeのときにTrueを返す --*/
	bool isPencilModeActive();

private:
	/*-- 終了処理 --*/
	void storeUndoAndRefresh();

	enum Type {
		NONE = 0,
		BRUSH,
		INKCHANGE,
		ERASER
	};

private:
	TPropertyGroup m_prop;

	TEnumProperty m_eraseType;
	TIntProperty m_toolSize;
	TDoubleProperty m_hardness;
	TBoolProperty m_invertOption;
	TBoolProperty m_currentStyle;
	TBoolProperty m_multi;
	TBoolProperty m_pencil;
	TEnumProperty m_colorType;

	Type m_type;

	TXshSimpleLevelP m_level;
	std::pair<int, int> m_currCell;

	TFrameId m_firstFrameId,
		m_veryFirstFrameId;

	StrokeGenerator m_track;

	TStroke *m_firstStroke;

	TTileSaverCM32 *m_tileSaver;
	TTileSetCM32 *m_tileSet;

	RasterStrokeGenerator *m_normalEraser;

	TRectD m_selectingRect,
		m_firstRect;

	ColorType m_colorTypeEraser;

	TPointD m_mousePos,
		m_brushPos,
		m_firstPos;

	std::vector<TPointD> m_polyline;

	//gestione cancellino blurato
	TRasterCM32P m_backupRas;
	TRaster32P m_workRas;
	QRadialGradient m_brushPad;
	std::vector<TThickPoint> m_points;
	BluredBrush *m_bluredBrush;

	double m_pointSize,
		m_distance2,
		m_cleanerSize,
		m_thick;

	bool m_isXsheetCell,
		m_active,
		m_enabled,
		m_selecting,
		m_firstFrameSelected,
		m_firstTime;

	/*---  消しゴム開始時のFrameIdを保存し、マウスリリース時(Undoの登録時)に
		別のフレームに移動していた場合に備える
	---*/
	TFrameId m_workingFrameId;
	/*--- マウスボタンDown→プロパティ変更→マウスボタンUpのように、
		ボタンDownからUpまでストレートに来なかった場合は処理を行わないようにする。
	---*/
	bool m_isLeftButtonPressed;
};

EraserTool inkPaintEraserTool("T_Eraser");

//==================================================================================================
//
//  InkPaintTool implemention
//
//------------------------------------------------------------------------

EraserTool::EraserTool(std::string name)
	: TTool(name), m_toolSize("Size:", 1, 100, 10, false) //W_ToolOptions_EraserToolSize
	  ,
	  m_hardness("Hardness:", 0, 100, 100), m_eraseType("Type:") //W_ToolOptions_Erasetype
	  ,
	  m_colorType("Mode:") //W_ToolOptions_InkOrPaint
	  ,
	  m_currentStyle("Selective", false) //W_ToolOptions_Selective
	  ,
	  m_invertOption("Invert", false) //W_ToolOptions_Invert
	  ,
	  m_multi("Frame Range", false) //W_ToolOptions_FrameRange
	  ,
	  m_pencil("Pencil Mode", false), m_currCell(-1, -1), m_tileSaver(0), m_bluredBrush(0), m_pointSize(-1), m_thick(0.5), m_firstFrameSelected(false), m_selecting(false), m_active(false), m_enabled(false), m_isXsheetCell(false), m_firstTime(true), m_workingFrameId(TFrameId()), m_isLeftButtonPressed(false)
{
	bind(TTool::ToonzImage);

	m_prop.bind(m_toolSize);
	m_prop.bind(m_hardness);
	m_prop.bind(m_eraseType);
	m_eraseType.addValue(NORMALERASE);
	m_eraseType.addValue(RECTERASE);
	m_eraseType.addValue(FREEHANDERASE);
	m_eraseType.addValue(POLYLINEERASE);

	m_colorType.addValue(LINES);
	m_colorType.addValue(AREAS);
	m_colorType.addValue(ALL);
	m_prop.bind(m_colorType);

	m_prop.bind(m_currentStyle);
	m_prop.bind(m_invertOption);
	m_prop.bind(m_multi);
	m_prop.bind(m_pencil);

	m_currentStyle.setId("Selective");
	m_invertOption.setId("Invert");
	m_multi.setId("FrameRange");
	m_pencil.setId("PencilMode");
	m_colorType.setId("Mode");
	m_eraseType.setId("Type");
}

//------------------------------------------------------------------------

void EraserTool::updateTranslation()
{
	m_toolSize.setQStringName(tr("Size:"));
	m_hardness.setQStringName(tr("Hardness:"));
	m_eraseType.setQStringName(tr("Type:"));
	m_colorType.setQStringName(tr("Mode:"));
	m_currentStyle.setQStringName(tr("Selective"));
	m_invertOption.setQStringName(tr("Invert"));
	m_multi.setQStringName(tr("Frame Range"));
	m_pencil.setQStringName(tr("Pencil Mode"));
}

//------------------------------------------------------------------------

void EraserTool::draw()
{
	/*-- MouseLeave時に赤点が描かれるのを防ぐ --*/
	if (m_pointSize == -1 && m_cleanerSize == 0)
		return;

	double pixelSize2 = getPixelSize() * getPixelSize();
	m_thick = sqrt(pixelSize2) / 2.0;

	TImageP img = getImage(false);
	if (!img)
		return;

	if (m_eraseType.getValue() == RECTERASE) {
		TPixel color = TPixel32::Red;
		if (m_multi.getValue() && m_firstFrameSelected)
			drawRect(m_firstRect, color, 0x3F33, true);

		if (m_selecting || (m_multi.getValue() && !m_firstFrameSelected))
			drawRect(m_selectingRect, color, 0xFFFF, true);
	}
	if (m_eraseType.getValue() == NORMALERASE) {
		TToonzImageP image(img);
		TRasterP ras = image->getRaster();
		int lx = ras->getLx();
		int ly = ras->getLy();

		/*-- InkCheck, PaintCheck, Ink#1CheckがONのときは、BrushTipの描画色を変える --*/
		if ((ToonzCheck::instance()->getChecks() & ToonzCheck::eInk) || (ToonzCheck::instance()->getChecks() & ToonzCheck::ePaint) || (ToonzCheck::instance()->getChecks() & ToonzCheck::eInk1))
			glColor3d(0.5, 0.8, 0.8);
		else
			glColor3d(1.0, 0.0, 0.0);
		drawEmptyCircle(tround(m_cleanerSize), m_brushPos,
						(m_pencil.getValue() || m_colorType.getValue() == AREAS),
						lx % 2 == 0, ly % 2 == 0);
	}
	if ((m_eraseType.getValue() == FREEHANDERASE || m_eraseType.getValue() == POLYLINEERASE) && m_multi.getValue()) {
		TPixel color = TPixel32::Red;
		tglColor(color);
		if (m_firstStroke)
			drawStrokeCenterline(*m_firstStroke, 1);
	}
	if (m_eraseType.getValue() == POLYLINEERASE && !m_polyline.empty()) {
		TPixel color = TPixel32::Red;
		tglColor(color);
		tglDrawCircle(m_polyline[0], 2);
		glBegin(GL_LINE_STRIP);
		for (UINT i = 0; i < m_polyline.size(); i++)
			tglVertex(m_polyline[i]);
		tglVertex(m_mousePos);
		glEnd();
	}
}

//----------------------------------------------------------------------

int EraserTool::getCursorId() const
{
	if (m_eraseType.getValue() == NORMALERASE)
		return ToolCursor::NormalEraserCursor;
	else if (ToonzCheck::instance()->getChecks() & ToonzCheck::eBlackBg)
		return ToolCursor::RectEraserCursorWhite;
	else
		return ToolCursor::RectEraserCursor;
}

//----------------------------------------------------------------------

void EraserTool::resetMulti()
{
	m_isXsheetCell = false;
	m_firstFrameSelected = false;
	m_firstRect.empty();
	m_selectingRect.empty();
	TTool::Application *app = TTool::getApplication();
	m_level = app->getCurrentLevel()->getLevel()
				  ? app->getCurrentLevel()->getSimpleLevel()
				  : 0;
	m_firstFrameId = m_veryFirstFrameId = getFrameId();
	if (m_firstStroke) {
		delete m_firstStroke;
		m_firstStroke = 0;
	}
}

//----------------------------------------------------------------------

void EraserTool::multiUpdate(const TXshSimpleLevelP &level, TFrameId firstFid, TFrameId lastFid, TRectD firstRect, TRectD lastRect)
{
	bool backward = false;
	if (firstFid > lastFid) {
		tswap(firstFid, lastFid);
		backward = true;
	}
	assert(firstFid <= lastFid);
	std::vector<TFrameId> allFids;
	level->getFids(allFids);

	/*-- フレーム範囲に対応するFIdを取得 --*/
	std::vector<TFrameId>::iterator i0 = allFids.begin();
	while (i0 != allFids.end() && *i0 < firstFid)
		i0++;
	if (i0 == allFids.end())
		return;
	std::vector<TFrameId>::iterator i1 = i0;
	while (i1 != allFids.end() && *i1 <= lastFid)
		i1++;
	assert(i0 < i1);
	std::vector<TFrameId> fids(i0, i1);
	int m = fids.size();
	assert(m > 0);

	std::wstring levelName = level->getName();

	/*-- FrameRangeの各フレームについて --*/
	TUndoManager::manager()->beginBlock();
	for (int i = 0; i < m; ++i) {
		TFrameId fid = fids[i];
		assert(firstFid <= fid && fid <= lastFid);
		TToonzImageP ti = level->getFrame(fid, true);
		if (!ti)
			continue;
		/*--補間の係数を取得 --*/
		double t = m > 1 ? (double)i / (double)(m - 1) : 0.5;
		/*--invertがONのとき、外側領域を4つのRectに分けてupdate--*/
		if (m_invertOption.getValue()) {
			TRect rect = convert(interpolateRect(firstRect, lastRect, backward ? 1 - t : t));
			TRectD rect01 = TRectD(TPointD(-100000., -100000.), TPointD((double)rect.x0, 100000.));
			update(ti, rect01, level, true, fid);
			TRectD rect02 = TRectD(convert(rect.getP01()), TPointD((double)rect.x1, 100000.));
			update(ti, rect02, level, true, fid);
			TRectD rect03 = TRectD(TPointD((double)rect.x0, -100000.), convert(rect.getP10()));
			update(ti, rect03, level, true, fid);
			TRectD rect04 = TRectD(TPointD((double)rect.x1, -100000.), TPointD(100000., 100000.));
			update(ti, rect04, level, true, fid);
		} else
			update(ti, interpolateRect(firstRect, lastRect, backward ? 1 - t : t), level, true, fid);

		TRect savebox;
		TRop::computeBBox(ti->getRaster(), savebox);
		ti->setSavebox(savebox);

		level->getProperties()->setDirtyFlag(true);
		notifyImageChanged(fid);
	}
	TUndoManager::manager()->endBlock();
}

//----------------------------------------------------------------------

void EraserTool::update(const TToonzImageP &ti, TRectD selArea, const TXshSimpleLevelP &level,
						bool multi, const TFrameId &frameId)
{
	if (m_selectingRect.x0 > m_selectingRect.x1) {
		selArea.x1 = m_selectingRect.x0;
		selArea.x0 = m_selectingRect.x1;
	}
	if (m_selectingRect.y0 > m_selectingRect.y1) {
		selArea.y1 = m_selectingRect.y0;
		selArea.y0 = m_selectingRect.y1;
	}
	if (selArea.getLx() < 1 || selArea.getLy() < 1)
		return;
	bool selective = m_currentStyle.getValue();
	int styleId = TTool::getApplication()->getCurrentLevelStyleIndex();

	TRasterCM32P raster = ti->getRaster();
	TTileSetCM32 *tileSet = new TTileSetCM32(raster->getSize());
	tileSet->add(raster, ToonzImageUtils::convertWorldToRaster(selArea, ti));
	TUndo *undo;

	std::wstring inkPaint = m_colorType.getValue();
	undo = new RectRasterUndo(tileSet, selArea, TStroke(), selective ? styleId : -1, m_eraseType.getValue(), inkPaint,
							  level.getPointer(), selective, m_invertOption.getValue(), frameId);

	ToonzImageUtils::eraseRect(ti, selArea, selective ? styleId : -1,
							   inkPaint == LINES || inkPaint == ALL,
							   inkPaint == AREAS || inkPaint == ALL);

	TUndoManager::manager()->add(undo);
}

//----------------------------------------------------------------------

void EraserTool::leftButtonDown(const TPointD &pos, const TMouseEvent &e)
{
	m_selecting = true;
	TImageP image(getImage(true));

	TRectD invalidateRect;
	if (TToonzImageP ti = image) {
		if (m_eraseType.getValue() == RECTERASE) {
			if (m_multi.getValue() && m_firstRect.isEmpty()) {
				invalidateRect = m_selectingRect;
				m_selectingRect.empty();
				invalidate(invalidateRect.enlarge(2));
			}
			m_selectingRect.x0 = pos.x;
			m_selectingRect.y0 = pos.y;
			m_selectingRect.x1 = pos.x + 1;
			m_selectingRect.y1 = pos.y + 1;
			invalidateRect = m_selectingRect.enlarge(2);
		}
		if (m_eraseType.getValue() == NORMALERASE) {
			TRasterCM32P raster = ti->getRaster();
			TThickPoint intPos;
			/*--Areasタイプの時は常にPencilと同じ消し方にする--*/
			if (m_pencil.getValue() || m_colorType.getValue() == AREAS)
				intPos = TThickPoint(pos + convert(raster->getCenter()), m_toolSize.getValue());
			else
				intPos = TThickPoint(pos + convert(raster->getCenter()), m_toolSize.getValue() - 1);
			int currentStyle = 0;
			if (m_currentStyle.getValue())
				currentStyle = TTool::getApplication()->getCurrentLevelStyleIndex();
			m_tileSet = new TTileSetCM32(raster->getSize());
			m_tileSaver = new TTileSaverCM32(raster, m_tileSet);
			TPointD halfThick(m_toolSize.getValue() * 0.5, m_toolSize.getValue() * 0.5);
			invalidateRect = TRectD(pos - halfThick, pos + halfThick);
			if (m_hardness.getValue() == 100 || m_pencil.getValue() || m_colorType.getValue() == AREAS) {
				if (m_colorType.getValue() == LINES) {
					m_colorTypeEraser = INK;
				}
				if (m_colorType.getValue() == AREAS)
					m_colorTypeEraser = PAINT;
				if (m_colorType.getValue() == ALL)
					m_colorTypeEraser = INKNPAINT;
				m_normalEraser = new RasterStrokeGenerator(raster, ERASE, m_colorTypeEraser, 0, intPos,
														   m_currentStyle.getValue(), currentStyle,
														   !(m_pencil.getValue() || m_colorType.getValue() == AREAS));
				m_tileSaver->save(m_normalEraser->getLastRect());
				m_normalEraser->generateLastPieceOfStroke(m_pencil.getValue() || m_colorType.getValue() == AREAS);
			} else {
				m_points.clear();
				m_backupRas = raster->clone();
				m_workRas = TRaster32P(raster->getSize());
				m_workRas->clear();
				TPointD center = raster->getCenterD();
				TThickPoint point(pos + center, m_toolSize.getValue());
				m_points.push_back(point);
				m_bluredBrush = new BluredBrush(m_workRas, m_toolSize.getValue(), m_brushPad, false);

				TRect bbox = m_bluredBrush->getBoundFromPoints(m_points);
				m_tileSaver->save(bbox);
				m_bluredBrush->addPoint(point, 1);
				m_bluredBrush->eraseDrawing(raster, m_backupRas, bbox, m_currentStyle.getValue(),
											currentStyle, m_colorType.getValue());
			}
			/*--- 現在のFidを記憶する ---*/
			m_workingFrameId = getFrameId();
		}
		if (m_eraseType.getValue() == FREEHANDERASE || m_eraseType.getValue() == POLYLINEERASE) {
			int col = getColumnIndex();
			m_enabled = col >= 0;

			if (!m_enabled)
				return;

			if (m_multi.getValue() && m_firstStroke && !m_firstFrameSelected) {
				invalidateRect = m_firstStroke->getBBox();
				delete m_firstStroke;
				m_firstStroke = 0;
				invalidate(invalidateRect.enlarge(2));
			}

			m_active = true;
			m_track.clear();
			m_firstPos = pos;
			double pixelSize2 = getPixelSize() * getPixelSize();
			m_track.add(TThickPoint(pos, m_thick), pixelSize2);
			TPointD dpiScale = m_viewer->getDpiScale();

			TPixel color = ToonzCheck::instance()->getChecks() & ToonzCheck::eBlackBg ? TPixel32::White : TPixel32::Black;
			tglColor(color);

			getViewer()->startForegroundDrawing();

			glPushMatrix();
			glScaled(dpiScale.x, dpiScale.y, 1);
			if (m_eraseType.getValue() == POLYLINEERASE) {
				if (m_polyline.empty() || m_polyline.back() != pos)
					m_polyline.push_back(pos);
			} else
				m_track.drawLastFragments();
			glPopMatrix();
			getViewer()->endForegroundDrawing();
			int maxThick = 2 * m_thick;
			TPointD halfThick(maxThick * 0.5, maxThick * 0.5);
			invalidateRect = TRectD(pos - halfThick, pos + halfThick);
		}
	}
	invalidate(invalidateRect.enlarge(2));
	m_isLeftButtonPressed = true;
}

//----------------------------------------------------------------------

void EraserTool::leftButtonDrag(const TPointD &pos, const TMouseEvent &e)
{
	/*-- 先にLeftButtonDownに入っていなければreturn --*/
	if (!m_isLeftButtonPressed)
		return;

	double pixelSize2 = getPixelSize() * getPixelSize();

	m_brushPos = m_mousePos = pos;
	if (!m_selecting)
		return;

	TImageP image(getImage(true));

	if (TToonzImageP ti = image) {
		TRectD invalidateRect;
		TPointD rasCenter = ti->getRaster()->getCenterD();
		if (m_eraseType.getValue() == RECTERASE) {
			TRectD oldRect = m_selectingRect;
			if (oldRect.x0 > oldRect.x1)
				tswap(oldRect.x1, oldRect.x0);
			if (oldRect.y0 > oldRect.y1)
				tswap(oldRect.y1, oldRect.y0);
			m_selectingRect.x1 = pos.x;
			m_selectingRect.y1 = pos.y;
			invalidateRect = m_selectingRect;
			if (invalidateRect.x0 > invalidateRect.x1)
				tswap(invalidateRect.x1, invalidateRect.x0);
			if (invalidateRect.y0 > invalidateRect.y1)
				tswap(invalidateRect.y1, invalidateRect.y0);
			invalidateRect += oldRect;
			invalidate(invalidateRect.enlarge(2));
		}
		if (m_eraseType.getValue() == NORMALERASE) {
			if (m_normalEraser && (m_hardness.getValue() == 100 || m_pencil.getValue() || m_colorType.getValue() == AREAS)) {
				TPointD pp(pos.x, pos.y);
				TThickPoint intPos;
				if (m_pencil.getValue() || m_colorType.getValue() == AREAS)
					intPos = TThickPoint(pp + convert(ti->getRaster()->getCenter()), m_toolSize.getValue());
				else
					intPos = TThickPoint(pp + convert(ti->getRaster()->getCenter()), m_toolSize.getValue() - 1);

				bool isAdded = m_normalEraser->add(intPos);
				if (ti && isAdded) {
					m_tileSaver->save(m_normalEraser->getLastRect());
					m_normalEraser->generateLastPieceOfStroke(m_pencil.getValue() || m_colorType.getValue() == AREAS);
					std::vector<TThickPoint> brushPoints = m_normalEraser->getPointsSequence();
					int m = (int)brushPoints.size();
					std::vector<TThickPoint> points;
					if (m == 3) {
						points.push_back(brushPoints[0]);
						points.push_back(brushPoints[1]);
					} else {
						points.push_back(brushPoints[m - 4]);
						points.push_back(brushPoints[m - 3]);
						points.push_back(brushPoints[m - 2]);
					}
					invalidateRect = ToolUtils::getBounds(points, m_toolSize.getValue());
				}
			} else {
				assert(m_workRas.getPointer() && m_backupRas.getPointer());

				TThickPoint old = m_points.back();
				if (norm2(pos - old) < 4)
					return;

				int thickness = m_toolSize.getValue();
				TThickPoint point(pos + rasCenter, thickness);
				TThickPoint mid((old + point) * 0.5, (point.thick + old.thick) * 0.5);
				m_points.push_back(mid);
				m_points.push_back(point);

				int currentStyle = 0;
				if (m_currentStyle.getValue())
					currentStyle = TTool::getApplication()->getCurrentLevelStyleIndex();

				TRect bbox;
				int m = (int)m_points.size();
				if (m == 3) {
					// ho appena cominciato. devo disegnare un segmento
					TThickPoint pa = m_points.front();
					std::vector<TThickPoint> points;
					points.push_back(pa);
					points.push_back(mid);
					invalidateRect = ToolUtils::getBounds(points, thickness);
					bbox = m_bluredBrush->getBoundFromPoints(points);
					m_bluredBrush->addArc(pa, (mid + pa) * 0.5, mid, 1, 1);
				} else {
					std::vector<TThickPoint> points;
					points.push_back(m_points[m - 4]);
					points.push_back(old);
					points.push_back(mid);
					invalidateRect = ToolUtils::getBounds(points, thickness);
					bbox = m_bluredBrush->getBoundFromPoints(points);
					m_bluredBrush->addArc(m_points[m - 4], old, mid, 1, 1);
				}
				m_tileSaver->save(bbox);
				m_bluredBrush->eraseDrawing(ti->getRaster(), m_backupRas, bbox, m_currentStyle.getValue(),
											currentStyle, m_colorType.getValue());
			}
			invalidate(invalidateRect.enlarge(2) - rasCenter);
		}
		if (m_eraseType.getValue() == FREEHANDERASE) {
			if (!m_enabled || !m_active)
				return;

			getViewer()->startForegroundDrawing();
			TPixel color = ToonzCheck::instance()->getChecks() & ToonzCheck::eBlackBg ? TPixel32::White : TPixel32::Black;
			tglColor(color);
			glPushMatrix();
			tglMultMatrix(getMatrix());
			TPointD dpiScale = m_viewer->getDpiScale();
			glScaled(dpiScale.x, dpiScale.y, 1);
			m_track.add(TThickPoint(pos, m_thick), pixelSize2);
			m_track.drawLastFragments();
			glPopMatrix();
			getViewer()->endForegroundDrawing();
		}
	}
}

//----------------------------------------------------------------------

void EraserTool::onImageChanged()
{
	if (!m_multi.getValue())
		return;
	TTool::Application *app = TTool::getApplication();
	TXshSimpleLevel *xshl = 0;
	if (app->getCurrentLevel()->getLevel())
		xshl = app->getCurrentLevel()->getSimpleLevel();

	if (!xshl || m_level.getPointer() != xshl || (m_selectingRect.isEmpty() && !m_firstStroke))
		resetMulti();
	else if (m_firstFrameId == getFrameId())
		m_firstFrameSelected = false; //nel caso sono passato allo stato 1 e torno all'immagine iniziale, torno allo stato iniziale
	else {							  //cambio stato.
		m_firstFrameSelected = true;
		if (m_eraseType.getValue() != FREEHANDERASE && m_eraseType.getValue() != POLYLINEERASE) {
			assert(!m_selectingRect.isEmpty());
			m_firstRect = m_selectingRect;
		}
	}
}

//----------------------------------------------------------------------

void EraserTool::leftButtonUp(const TPointD &pos, const TMouseEvent &e)
{
	/*--先にLeftButtonDownに入っていなければ処理をしない--*/
	if (!m_isLeftButtonPressed)
		return;
	m_isLeftButtonPressed = false;

	if (!m_selecting)
		return;
	TImageP image(getImage(true));
	if (TToonzImageP ti = image) {
		if (m_eraseType.getValue() == RECTERASE) {
			if (m_selectingRect.x0 > m_selectingRect.x1)
				tswap(m_selectingRect.x1, m_selectingRect.x0);
			if (m_selectingRect.y0 > m_selectingRect.y1)
				tswap(m_selectingRect.y1, m_selectingRect.y0);

			if (m_multi.getValue()) {
				TTool::Application *app = TTool::getApplication();
				if (m_firstFrameSelected) {
					multiUpdate(m_level, m_firstFrameId, getFrameId(), m_firstRect, m_selectingRect);
					if (e.isShiftPressed()) {
						m_firstRect = m_selectingRect;
						m_firstFrameId = getFrameId();
						invalidate();
					} else {
						if (m_isXsheetCell) {
							app->getCurrentColumn()->setColumnIndex(m_currCell.first);
							app->getCurrentFrame()->setFrame(m_currCell.second);
						} else
							app->getCurrentFrame()->setFid(m_veryFirstFrameId);
						resetMulti();
					}
				} else {
					m_isXsheetCell = app->getCurrentFrame()->isEditingScene();
					m_currCell = std::pair<int, int>(getColumnIndex(), getFrame());
				}
			} else {
				TTool::Application *app = TTool::getApplication();
				TXshLevel *level = app->getCurrentLevel()->getLevel();
				TXshSimpleLevelP simLevel = level->getSimpleLevel();
				TFrameId frameId = getFrameId();
				if (m_invertOption.getValue()) {
					TUndoManager::manager()->beginBlock();
					TRectD rect = m_selectingRect;
					TRectD worldBBox = ToonzImageUtils::convertRasterToWorld(ti->getRaster()->getBounds(), ti);
					rect *= ToonzImageUtils::convertRasterToWorld(ti->getSavebox(), ti);

					TRectD rect01 = TRectD(worldBBox.getP00(), TPointD(rect.x0, worldBBox.y1));
					if (rect01.getLx() > 0 && rect01.getLy() > 0)
						update(ti, rect01, simLevel, false, frameId);

					TRectD rect02 = TRectD(rect.getP01(), TPointD(rect.x1, worldBBox.y1));
					if (rect02.getLx() > 0 && rect02.getLy() > 0)
						update(ti, rect02, simLevel, false, frameId);

					TRectD rect03 = TRectD(TPointD(rect.x0, worldBBox.y0), rect.getP10());
					if (rect03.getLx() > 0 && rect03.getLy() > 0)
						update(ti, rect03, simLevel, false, frameId);

					TRectD rect04 = TRectD(TPointD(rect.x1, worldBBox.y0), TPointD(worldBBox.x1, worldBBox.y1));
					if (rect04.getLx() > 0 && rect04.getLy() > 0)
						update(ti, rect04, simLevel, false, frameId);
					TUndoManager::manager()->endBlock();
					invalidate();
				} else {
					update(ti, m_selectingRect, simLevel, false, frameId);
					invalidate(m_selectingRect.enlarge(2));
				}
				m_selectingRect.empty();

				TTool::getApplication()->getCurrentXsheet()->notifyXsheetChanged();
				notifyImageChanged();
			}
		}
		if (m_eraseType.getValue() == NORMALERASE) {
			TTool::Application *app = TTool::getApplication();
			int currentStyle = app->getCurrentLevelStyleIndex();
			TXshLevel *level = app->getCurrentLevel()->getLevel();
			TXshSimpleLevelP simLevel = level->getSimpleLevel();

			/*--Erase中にフレームが動いても、クリック時のFidに対してUndoを記録する--*/
			TFrameId frameId = m_workingFrameId.isEmptyFrame() ? getCurrentFid() : m_workingFrameId;

			if (m_normalEraser && (m_hardness.getValue() == 100 || m_pencil.getValue() || m_colorType.getValue() == AREAS)) {
				TUndoManager::manager()->add(new RasterEraserUndo(m_tileSet, m_normalEraser->getPointsSequence(),
																  m_colorTypeEraser, 0, m_normalEraser->isSelective(), currentStyle,
																  simLevel.getPointer(), frameId,
																  (m_pencil.getValue() || m_colorType.getValue() == AREAS)));
				app->getCurrentTool()->getTool()->notifyImageChanged(frameId);
				app->getCurrentXsheet()->notifyXsheetChanged();
				delete m_normalEraser;
				m_normalEraser = 0;
			} else {
				if (m_points.size() != 1) {
					TPointD rasCenter = ti->getRaster()->getCenterD();
					TThickPoint point(pos + rasCenter, m_toolSize.getValue());
					m_points.push_back(point);
					int m = m_points.size();
					std::vector<TThickPoint> points;
					points.push_back(m_points[m - 3]);
					points.push_back(m_points[m - 2]);
					points.push_back(m_points[m - 1]);
					TRect bbox = m_bluredBrush->getBoundFromPoints(points);
					m_tileSaver->save(bbox);
					m_bluredBrush->addArc(points[0], points[1], points[2], 1, 1);
					m_bluredBrush->eraseDrawing(ti->getRaster(), m_backupRas, bbox, m_currentStyle.getValue(),
												currentStyle, m_colorType.getValue());
					TRectD invalidateRect = ToolUtils::getBounds(points, m_toolSize.getValue());
					invalidate(invalidateRect.enlarge(2) - rasCenter);
				}

				m_backupRas = TRasterCM32P();
				m_workRas = TRaster32P();
				delete m_bluredBrush;
				m_bluredBrush = 0;
				TUndoManager::manager()->add(new RasterBluredEraserUndo(m_tileSet, m_points,
																		currentStyle, m_currentStyle.getValue(), simLevel.getPointer(),
																		frameId, m_toolSize.getValue(), m_hardness.getValue() * 0.01, m_colorType.getValue()));
			}
			delete m_tileSaver;
			m_tileSaver = 0;
			/*-- 作業したフレームをシグナルで知らせる --*/
			notifyImageChanged(frameId);
			/*-- 作業フレームをリセット --*/
			m_workingFrameId = TFrameId();
		}
		if (m_eraseType.getValue() == FREEHANDERASE) {
			bool isValid = m_enabled && m_active;
			m_enabled = m_active = false;
			if (!isValid)
				return;
			if (m_track.isEmpty())
				return;
			double pixelSize2 = getPixelSize() * getPixelSize();
			m_track.add(TThickPoint(m_firstPos, m_thick), pixelSize2);
			m_track.filterPoints();
			double error = (30.0 / 11) * sqrt(pixelSize2);
			TStroke *stroke = m_track.makeStroke(error);

			stroke->setStyle(1);
			m_track.clear();

			TTool::Application *app = TTool::getApplication();
			int styleId = app->getCurrentLevelStyleIndex();
			if (m_multi.getValue()) //stroke multi
			{
				if (m_firstFrameSelected) {
					TFrameId tmp = getFrameId();
					if (m_firstStroke && stroke)
						multiAreaEraser(m_level, m_firstFrameId, tmp, m_firstStroke, stroke);
					notifyImageChanged();
					if (e.isShiftPressed()) {
						TRectD invalidateRect = m_firstStroke->getBBox();
						delete m_firstStroke;
						m_firstStroke = 0;
						invalidate(invalidateRect.enlarge(2));
						m_firstStroke = stroke;
						invalidateRect = m_firstStroke->getBBox();
						invalidate(invalidateRect.enlarge(2));
						m_firstFrameId = getFrameId();
					} else {
						if (m_isXsheetCell) {
							app->getCurrentColumn()->setColumnIndex(m_currCell.first);
							app->getCurrentFrame()->setFrame(m_currCell.second);
						} else
							app->getCurrentFrame()->setFid(m_veryFirstFrameId);
						resetMulti();
						delete stroke;
					}
				} else //primo frame
				{
					m_firstStroke = stroke;
					m_isXsheetCell = app->getCurrentFrame()->isEditingScene();
					m_currCell = std::pair<int, int>(getColumnIndex(), getFrame());
					invalidate(m_firstStroke->getBBox().enlarge(2));
				}
			} else //stroke non multi
			{
				if (!getImage(true))
					return;
				TXshLevel *level = app->getCurrentLevel()->getLevel();
				TXshSimpleLevelP simLevel = level->getSimpleLevel();
				TFrameId frameId = getFrameId();
				eraseStroke(image, stroke, m_eraseType.getValue(), m_colorType.getValue(),
							m_invertOption.getValue(), m_currentStyle.getValue(), styleId, simLevel,
							frameId);
				notifyImageChanged();
				if (m_invertOption.getValue())
					invalidate();
				else
					invalidate(stroke->getBBox().enlarge(2));
			}
		}

		ToolUtils::updateSaveBox();
	}

	m_selecting = false;
}

//----------------------------------------------------------------------

void EraserTool::leftButtonDoubleClick(const TPointD &pos, const TMouseEvent &e)
{
	TStroke *stroke;
	TTool::Application *app = TTool::getApplication();
	if (m_polyline.size() <= 1) {
		resetMulti();
		return;
	}
	if (m_polyline.back() != pos)
		m_polyline.push_back(pos);
	if (m_polyline.back() != m_polyline.front())
		m_polyline.push_back(m_polyline.front());
	std::vector<TThickPoint> strokePoints;
	for (UINT i = 0; i < m_polyline.size() - 1; i++) {
		strokePoints.push_back(TThickPoint(m_polyline[i], 1));
		strokePoints.push_back(TThickPoint(0.5 * (m_polyline[i] + m_polyline[i + 1]), 1));
	}
	strokePoints.push_back(TThickPoint(m_polyline.back(), 1));
	m_polyline.clear();
	stroke = new TStroke(strokePoints);
	assert(stroke->getPoint(0) == stroke->getPoint(1));

	int styleId = app->getCurrentLevelStyleIndex();
	if (m_multi.getValue()) //stroke multi
	{
		if (m_firstFrameSelected) {
			TFrameId tmp = getFrameId();
			if (m_firstStroke && stroke)
				multiAreaEraser(m_level, m_firstFrameId, tmp, m_firstStroke, stroke);
			if (e.isShiftPressed()) {
				TRectD invalidateRect = m_firstStroke->getBBox();
				delete m_firstStroke;
				m_firstStroke = 0;
				invalidate(invalidateRect.enlarge(2));
				m_firstStroke = stroke;
				invalidateRect = m_firstStroke->getBBox();
				invalidate(invalidateRect.enlarge(2));
				m_firstFrameId = getFrameId();
			} else {
				if (m_isXsheetCell) {
					app->getCurrentColumn()->setColumnIndex(m_currCell.first);
					app->getCurrentFrame()->setFrame(m_currCell.second);
				} else
					app->getCurrentFrame()->setFid(m_veryFirstFrameId);
				resetMulti();
				delete stroke;
			}
		} else //primo frame
		{
			m_firstStroke = stroke;
			m_isXsheetCell = app->getCurrentFrame()->isEditingScene();
			m_currCell = std::pair<int, int>(getColumnIndex(), getFrame());
			invalidate(m_firstStroke->getBBox().enlarge(2));
		}
	} else {
		if (!getImage(true))
			return;
		TXshLevel *level = app->getCurrentLevel()->getLevel();
		TXshSimpleLevelP simLevel = level->getSimpleLevel();
		TFrameId frameId = getFrameId();
		TToonzImageP ti = (TToonzImageP)getImage(true);
		eraseStroke(ti, stroke, m_eraseType.getValue(), m_colorType.getValue(),
					m_invertOption.getValue(), m_currentStyle.getValue(), styleId, simLevel, frameId);
		notifyImageChanged();
		if (m_invertOption.getValue())
			invalidate();
		else
			invalidate(stroke->getBBox().enlarge(2));
	}
}

//----------------------------------------------------------------------

bool EraserTool::onPropertyChanged(std::string propertyName)
{
	/*--- 変更されたPropertyに合わせて処理を分ける ---*/
	if (propertyName == m_eraseType.getName()) {
		/*--- polylineにした時、前回のpolyline選択をクリアする ---*/
		if (m_eraseType.getValue() == POLYLINEERASE && !m_polyline.empty())
			m_polyline.clear();
		EraseType = toString(m_eraseType.getValue());
	}

	else if (propertyName == m_toolSize.getName()) {
		EraseSize = m_toolSize.getValue();
		m_cleanerSize = m_toolSize.getValue();

		m_brushPad = ToolUtils::getBrushPad(m_toolSize.getValue(), m_hardness.getValue() * 0.01);
	}

	else if (propertyName == m_invertOption.getName())
		EraseInvert = m_invertOption.getValue();

	else if (propertyName == m_currentStyle.getName())
		EraseSelective = m_currentStyle.getValue();

	else if (propertyName == m_multi.getName()) {
		if (m_multi.getValue())
			resetMulti();
		EraseRange = m_multi.getValue();
	}

	else if (propertyName == m_pencil.getName()) {
		ErasePencil = m_pencil.getValue();
	}

	else if (propertyName == m_colorType.getName()) {
		EraseColorType = toString(m_colorType.getValue());
		/*-- ColorModelのCursor更新のためにSIGNALを出す --*/
		TTool::getApplication()->getCurrentTool()->notifyToolChanged();
	}

	else if (propertyName == m_hardness.getName()) {
		EraseHardness = m_hardness.getValue();
		m_brushPad = ToolUtils::getBrushPad(m_toolSize.getValue(), m_hardness.getValue() * 0.01);
	}

	if (propertyName == m_hardness.getName() || propertyName == m_toolSize.getName()) {
		m_brushPad = ToolUtils::getBrushPad(m_toolSize.getValue(), m_hardness.getValue() * 0.01);
		TRectD rect(m_brushPos - TPointD(EraseSize + 2, EraseSize + 2),
					m_brushPos + TPointD(EraseSize + 2, EraseSize + 2));
		invalidate(rect);
	}

	/*--- Erase動作中にプロパティが変わったら、終了処理を行う ---*/
	if (m_isLeftButtonPressed) {
		storeUndoAndRefresh();
	}

	return true;
}

//----------------------------------------------------------------------

void EraserTool::mouseMove(const TPointD &pos, const TMouseEvent &e)
{
	qApp->processEvents(QEventLoop::ExcludeUserInputEvents);

	struct Locals {
		EraserTool *m_this;

		void setValue(TIntProperty &prop, int value)
		{
			prop.setValue(value);

			m_this->onPropertyChanged(prop.getName());
			TTool::getApplication()->getCurrentTool()->notifyToolChanged();
		}

		void addValue(TIntProperty &prop, double add)
		{
			const TIntProperty::Range &range = prop.getRange();
			setValue(prop, tcrop<double>(prop.getValue() + add, range.first, range.second));
		}

	} locals = {this};

	switch (e.getModifiersMask()) {
	case TMouseEvent::ALT_KEY: {
		// User wants to alter the maximum brush size
		const TPointD &diff = pos - m_mousePos;
		double add = (fabs(diff.x) > fabs(diff.y)) ? diff.x : diff.y;

		locals.addValue(m_toolSize, add);
	}

	DEFAULT:
		m_brushPos = pos;
	}

	m_mousePos = pos;
	invalidate();
}

//----------------------------------------------------------------------

void EraserTool::onEnter()
{
	TToonzImageP ti(getImage(false));
	if (!ti)
		return;
	if (m_firstTime) {
		m_toolSize.setValue(EraseSize);
		m_eraseType.setValue(toWideString(EraseType.getValue()));
		m_currentStyle.setValue(EraseSelective ? 1 : 0);
		m_invertOption.setValue(EraseInvert ? 1 : 0);
		m_colorType.setValue(toWideString(EraseColorType.getValue()));
		m_multi.setValue(EraseRange ? 1 : 0);
		m_hardness.setValue(EraseHardness);
		m_pencil.setValue(ErasePencil);
		m_firstTime = false;
	}
	double x = m_toolSize.getValue();

	double minRange = 1;
	double maxRange = 100;

	double minSize = 0.1;
	double maxSize = 100;

	m_pointSize = (x - minRange) / (maxRange - minRange) * (maxSize - minSize) + minSize;

	//  getApplication()->editImage();
	m_cleanerSize = m_toolSize.getValue();
	TTool::Application *app = TTool::getApplication();
	m_level = app->getCurrentLevel()->getLevel()
				  ? app->getCurrentLevel()->getSimpleLevel()
				  : 0;
}

//----------------------------------------------------------------------

void EraserTool::onLeave()
{
	m_pointSize = -1;
	m_cleanerSize = 0;
}

//----------------------------------------------------------------------

void EraserTool::onActivate()
{
	if (m_multi.getValue())
		resetMulti();

	/*-- 他のツールからpolylineに入った時、前回のpolyline選択をクリアする --*/
	if (m_eraseType.getValue() == POLYLINEERASE && !m_polyline.empty())
		m_polyline.clear();

	onEnter();
	m_brushPad = ToolUtils::getBrushPad(m_toolSize.getValue(), m_hardness.getValue() * 0.01);
}

//------------------------------------------------------------------------------------------------------------

void EraserTool::multiAreaEraser(const TXshSimpleLevelP &sl, TFrameId &firstFid, TFrameId &lastFid,
								 TStroke *firstStroke, TStroke *lastStroke)
{
	TStroke *first = new TStroke();
	TStroke *last = new TStroke();
	*first = *firstStroke;
	*last = *lastStroke;
	TVectorImageP firstImage = new TVectorImage();
	TVectorImageP lastImage = new TVectorImage();
	firstImage->addStroke(first);
	lastImage->addStroke(last);

	bool backward = false;
	if (firstFid > lastFid) {
		tswap(firstFid, lastFid);
		backward = true;
	}
	assert(firstFid <= lastFid);
	std::vector<TFrameId> allFids;
	sl->getFids(allFids);

	std::vector<TFrameId>::iterator i0 = allFids.begin();
	while (i0 != allFids.end() && *i0 < firstFid)
		i0++;
	if (i0 == allFids.end())
		return;
	std::vector<TFrameId>::iterator i1 = i0;
	while (i1 != allFids.end() && *i1 <= lastFid)
		i1++;
	assert(i0 < i1);
	std::vector<TFrameId> fids(i0, i1);
	int m = fids.size();
	assert(m > 0);
	TUndoManager::manager()->beginBlock();
	for (int i = 0; i < m; ++i) {
		TFrameId fid = fids[i];
		assert(firstFid <= fid && fid <= lastFid);
		TImageP img = sl->getFrame(fid, true);
		double t = m > 1 ? (double)i / (double)(m - 1) : 0.5;
		doMultiEraser(img, backward ? 1 - t : t, sl, fid, firstImage, lastImage);
		sl->getProperties()->setDirtyFlag(true);
		notifyImageChanged(fid);
	}
	TUndoManager::manager()->endBlock();
}

//-------------------------------------------------------------------------------------------------

void EraserTool::doMultiEraser(const TImageP &img, double t,
							   const TXshSimpleLevelP &sl, const TFrameId &fid,
							   const TVectorImageP &firstImage, const TVectorImageP &lastImage)
{
	//  ColorController::instance()->switchToLevelPalette();
	int styleId = TTool::getApplication()->getCurrentLevelStyleIndex();
	if (t == 0)
		eraseStroke(img, firstImage->getStroke(0), m_eraseType.getValue(), m_colorType.getValue(),
					m_invertOption.getValue(), m_currentStyle.getValue(), styleId, sl, fid);
	else if (t == 1)
		eraseStroke(img, lastImage->getStroke(0), m_eraseType.getValue(), m_colorType.getValue(),
					m_invertOption.getValue(), m_currentStyle.getValue(), styleId, sl, fid);
	else {
		assert(firstImage->getStrokeCount() == 1);
		assert(lastImage->getStrokeCount() == 1);
		TVectorImageP vi = TInbetween(firstImage, lastImage).tween(t);
		assert(vi->getStrokeCount() == 1);
		eraseStroke(img, vi->getStroke(0), m_eraseType.getValue(), m_colorType.getValue(),
					m_invertOption.getValue(), m_currentStyle.getValue(), styleId, sl, fid);
	}
}

//--------------------------------------------------------------------------------------------------
/*!ドラッグ中にツールが切り替わった時、終了処理を行う
*/

void EraserTool::onDeactivate()
{
	if (!m_isLeftButtonPressed || !m_selecting)
		return;

	storeUndoAndRefresh();
}

//--------------------------------------------------------------------------------------------------
/*-- Erase終了処理 --*/
void EraserTool::storeUndoAndRefresh()
{
	m_isLeftButtonPressed = false;

	/*-- 各データのリフレッシュ --*/
	if (m_firstStroke) {
		delete m_firstStroke;
		m_firstStroke = 0;
	}
	if (m_normalEraser) {
		TUndoManager::manager()->add(new RasterEraserUndo(m_tileSet,
														  m_normalEraser->getPointsSequence(),
														  m_colorTypeEraser,
														  0,
														  m_normalEraser->isSelective(),
														  TTool::getApplication()->getCurrentLevelStyleIndex(),
														  TTool::getApplication()->getCurrentLevel()->getLevel()->getSimpleLevel(),
														  m_workingFrameId.isEmptyFrame() ? getCurrentFid() : m_workingFrameId,
														  (m_pencil.getValue() || m_colorType.getValue() == AREAS)));
		delete m_normalEraser;
		m_normalEraser = 0;
	}
	if (m_bluredBrush) {
		m_backupRas = TRasterCM32P();
		m_workRas = TRaster32P();
		delete m_bluredBrush;
		m_bluredBrush = 0;
		TUndoManager::manager()->add(new RasterBluredEraserUndo(m_tileSet, m_points,
																TTool::getApplication()->getCurrentLevelStyleIndex(),
																m_currentStyle.getValue(),
																TTool::getApplication()->getCurrentLevel()->getLevel()->getSimpleLevel(),
																m_workingFrameId.isEmptyFrame() ? getCurrentFid() : m_workingFrameId,
																m_toolSize.getValue(),
																m_hardness.getValue() * 0.01,
																m_colorType.getValue()));
	}
	if (m_tileSaver) {
		delete m_tileSaver;
		m_tileSaver = 0;
	}

	TRectD invalidateRect;
	if (m_firstRect != TRectD()) {
		invalidateRect += m_firstRect;
		m_firstRect.empty();
	}
	if (m_selectingRect != TRectD()) {
		invalidateRect += m_selectingRect;
		m_selectingRect.empty();
	}
	if (!m_track.isEmpty())
		m_track.clear();

	if (!invalidateRect.isEmpty())
		invalidate(invalidateRect.enlarge(2));
}

//--------------------------------------------------------------------------------------------------
/*! Brush、PaintBrush、EraserToolがPencilModeのときにTrueを返す
*/
bool EraserTool::isPencilModeActive()
{
	return m_eraseType.getValue() == NORMALERASE && m_pencil.getValue();
}

} //namespace