#include "tools/tool.h"
#include "tundo.h"
#include "tproperty.h"
#include "tools/cursors.h"
#include "toonz/autoclose.h"
#include "ttoonzimage.h"
#include "toonz/toonzimageutils.h"
#include "tenv.h"
#include "tools/toolutils.h"
#include "toonz/txshsimplelevel.h"

#include "toonz/ttileset.h"
#include "toonz/levelproperties.h"
#include "toonz/stage2.h"

#include "tvectorimage.h"
#include "toonz/strokegenerator.h"
#include "tstroke.h"
#include "drawutil.h"
#include "tinbetween.h"

#include "toonz/txsheethandle.h"
#include "toonz/tframehandle.h"
#include "toonz/tcolumnhandle.h"
#include "toonz/tpalettehandle.h"
#include "toonz/txshlevelhandle.h"
#include "tools/toolhandle.h"

// For Qt translation support
#include <QCoreApplication>

using namespace ToolUtils;

TEnv::StringVar AutocloseVectorType("InknpaintAutocloseVectorType", "Normal");
TEnv::DoubleVar AutocloseDistance("InknpaintAutocloseDistance", 10.0);
TEnv::DoubleVar AutocloseAngle("InknpaintAutocloseAngle", 60.0);
TEnv::IntVar AutocloseRange("InknpaintAutocloseRange", 0);
TEnv::IntVar AutocloseOpacity("InknpaintAutocloseOpacity", 1);
#define NORMAL_CLOSE L"Normal"
#define RECT_CLOSE L"Rectangular"
#define FREEHAND_CLOSE L"Freehand"
#define POLYLINE_CLOSE L"Polyline"

namespace
{

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

class AutocloseParameters
{
public:
	int m_closingDistance, m_inkIndex, m_opacity;
	double m_spotAngle;

	AutocloseParameters()
		: m_closingDistance(0), m_inkIndex(0), m_spotAngle(0), m_opacity(1)
	{
	}
};

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

class RasterAutocloseUndo : public TRasterUndo
{
	AutocloseParameters m_params;
	std::vector<TAutocloser::Segment> m_segments;

public:
	RasterAutocloseUndo(
		TTileSetCM32 *tileSet,
		const AutocloseParameters &params,
		const std::vector<TAutocloser::Segment> &segments,
		TXshSimpleLevel *level, const TFrameId &frameId)
		: TRasterUndo(tileSet, level, frameId, false, false, 0), m_segments(segments), m_params(params)
	{
	}

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

	void redo() const
	{
		TToonzImageP image = getImage();
		if (!image)
			return;
		TAutocloser ac(image->getRaster(), m_params.m_closingDistance, m_params.m_spotAngle, m_params.m_inkIndex, m_params.m_opacity);

		ac.draw(m_segments);
		ToolUtils::updateSaveBox();
		/*-- Viewerを更新させるため --*/
		TTool::getApplication()->getCurrentXsheet()->notifyXsheetChanged();
		notifyImageChanged();
	}

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

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

	QString getToolName()
	{
		return QString("Autoclose Tool");
	}
	int getHistoryType()
	{
		return HistoryType::AutocloseTool;
	}
};

} // namespace

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

class RasterTapeTool : public TTool
{

	Q_DECLARE_TR_FUNCTIONS(RasterTapeTool)

	bool m_selecting;
	TRectD m_selectingRect;
	TRectD m_firstRect;
	TPointD m_firstPoint;
	bool m_firstFrameSelected;
	TXshSimpleLevelP m_level;

	//TBoolProperty  m_isRect;
	TEnumProperty m_closeType;
	TDoubleProperty m_distance;
	TDoubleProperty m_angle;
	TStyleIndexProperty m_inkIndex;
	TIntProperty m_opacity;
	TPropertyGroup m_prop;
	TBoolProperty m_multi;
	TFrameId m_firstFrameId, m_veryFirstFrameId;
	bool m_isXsheetCell;
	std::pair<int, int> m_currCell;

	//Aggiunte per disegnare il lazzo a la polyline
	StrokeGenerator m_track;
	TPointD m_firstPos;
	TPointD m_mousePosition;
	double m_thick;
	TStroke *m_stroke;
	TStroke *m_firstStroke;
	std::vector<TPointD> m_polyline;
	bool m_firstTime;

public:
	RasterTapeTool()
		: TTool("T_Tape"), m_closeType("Type:") //W_ToolOptions_CloseType
		  ,
		  m_distance("Distance:", 1, 100, 10) //W_ToolOptions_Distance
		  ,
		  m_angle("Angle:", 1, 180, 60) //W_ToolOptions_Angle
		  ,
		  m_inkIndex("Style Index:", L"current") //W_ToolOptions_InkIndex
		  ,
		  m_opacity("Opacity:", 1, 255, 255), m_multi("Frame Range", false) //W_ToolOptions_FrameRange
		  ,
		  m_selecting(false), m_selectingRect(), m_firstRect(), m_level(0), m_firstFrameSelected(false), m_isXsheetCell(false), m_currCell(-1, -1), m_firstPos(), m_mousePosition(), m_thick(0.5), m_stroke(0), m_firstStroke(0), m_firstTime(true)
	{
		bind(TTool::ToonzImage);
		m_prop.bind(m_closeType);
		m_closeType.addValue(NORMAL_CLOSE);
		m_closeType.addValue(RECT_CLOSE);
		m_closeType.addValue(FREEHAND_CLOSE);
		m_closeType.addValue(POLYLINE_CLOSE);
		m_prop.bind(m_multi);
		m_prop.bind(m_distance);
		m_prop.bind(m_angle);
		m_prop.bind(m_inkIndex);
		m_prop.bind(m_opacity);
		m_multi.setId("FrameRange");
		m_closeType.setId("Type");
	}

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

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

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

	void updateTranslation()
	{
		m_closeType.setQStringName(tr("Type:"));
		m_distance.setQStringName(tr("Distance:"));
		m_inkIndex.setQStringName(tr("Style Index:"));
		m_opacity.setQStringName(tr("Opacity:"));
		m_multi.setQStringName(tr("Frame Range"));
		m_angle.setQStringName(tr("Angle:"));
	}

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

	void leftButtonDrag(const TPointD &pos, const TMouseEvent &e)
	{
		if (m_closeType.getValue() == RECT_CLOSE) {
			if (!m_selecting)
				return;
			m_selectingRect.x1 = pos.x;
			m_selectingRect.y1 = pos.y;
			invalidate();
		} else if (m_closeType.getValue() == FREEHAND_CLOSE) {
			freehandDrag(pos);
		}
	}

	//------------------------------------------------------------
	/*--  AutoCloseが実行されたらtrue,実行されなければfalseを返す --*/
	bool applyAutoclose(const TToonzImageP &ti,
						const TRectD &selRect = TRectD(),
						TStroke *stroke = 0)
	{
		if (!ti)
			return false;
		//inizializzo gli AutocloseParameters
		AutocloseParameters params;
		params.m_closingDistance = (int)(m_distance.getValue());
		params.m_spotAngle = (int)(m_angle.getValue());
		params.m_opacity = m_opacity.getValue();
		std::string inkString = ::to_string(m_inkIndex.getValue());
		int inkIndex = TTool::getApplication()->getCurrentLevelStyleIndex(); //TApp::instance()->getCurrentPalette()->getStyleIndex();
		if (isInt(inkString))
			inkIndex = std::stoi(inkString);
		params.m_inkIndex = inkIndex;

		TPoint delta;
		TRasterCM32P ras, raux = ti->getRaster();
		if (m_closeType.getValue() == RECT_CLOSE && raux && !selRect.isEmpty()) {
			TRectD selArea = selRect;
			if (selRect.x0 > selRect.x1) {
				selArea.x1 = selRect.x0;
				selArea.x0 = selRect.x1;
			}
			if (selRect.y0 > selRect.y1) {
				selArea.y1 = selRect.y0;
				selArea.y0 = selRect.y1;
			}
			TRect myRect(ToonzImageUtils::convertWorldToRaster(selArea, ti));
			ras = raux->extract(myRect);
			delta = myRect.getP00();
		} else if ((m_closeType.getValue() == FREEHAND_CLOSE || m_closeType.getValue() == POLYLINE_CLOSE) &&
				   stroke) {
			TRectD selArea = stroke->getBBox();
			TRect myRect(ToonzImageUtils::convertWorldToRaster(selArea, ti));
			ras = raux->extract(myRect);
			delta = myRect.getP00();
		} else
			ras = raux;
		if (!ras)
			return false;

		TAutocloser ac(ras, params.m_closingDistance, params.m_spotAngle, params.m_inkIndex, params.m_opacity);

		std::vector<TAutocloser::Segment> segments;
		ac.compute(segments);

		if ((m_closeType.getValue() == FREEHAND_CLOSE || m_closeType.getValue() == POLYLINE_CLOSE) &&
			stroke)
			checkSegments(segments, stroke, raux, delta);

		std::vector<TAutocloser::Segment> segments2(segments);

		/*-- segmentが取得できなければfalseを返す --*/
		if (segments2.empty())
			return false;

		int i;
		if (delta != TPoint(0, 0))
			for (i = 0; i < (int)segments2.size(); i++) {
				segments2[i].first += delta;
				segments2[i].second += delta;
			}

		TTileSetCM32 *tileSet = new TTileSetCM32(raux->getSize());
		for (i = 0; i < (int)segments2.size(); i++) {
			TRect bbox(segments2[i].first, segments2[i].second);
			bbox = bbox.enlarge(2);
			tileSet->add(raux, bbox);
		}

		TXshSimpleLevel *sl = TTool::getApplication()->getCurrentLevel()->getSimpleLevel();
		TFrameId id = getCurrentFid();
		TUndoManager::manager()->add(new RasterAutocloseUndo(tileSet, params, segments2, sl, id));
		ac.draw(segments);
		ToolUtils::updateSaveBox();
		return true;
	}

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

	inline TRectD interpolateRect(const TRectD &r1, const TRectD &r2, double t)
	{
		return TRectD(r1.x0 + (r2.x0 - r1.x0) * t, r1.y0 + (r2.y0 - r1.y0) * t,
					  r1.x1 + (r2.x1 - r1.x1) * t, r1.y1 + (r2.y1 - r1.y1) * t);
	}

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

	void multiApplyAutoclose(TFrameId firstFid, TFrameId lastFid,
							 TRectD firstRect, TRectD lastRect,
							 TStroke *firstStroke = 0, TStroke *lastStroke = 0)
	{
		bool backward = false;
		if (firstFid > lastFid) {
			tswap(firstFid, lastFid);
			backward = true;
		}
		assert(firstFid <= lastFid);
		std::vector<TFrameId> allFids;
		m_level->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);

		TVectorImageP firstImage;
		TVectorImageP lastImage;
		if ((m_closeType.getValue() == FREEHAND_CLOSE || m_closeType.getValue() == POLYLINE_CLOSE) &&
			firstStroke && lastStroke) {
			TStroke *first = new TStroke(*firstStroke);
			TStroke *last = new TStroke(*lastStroke);
			firstImage = new TVectorImage();
			lastImage = new TVectorImage();
			firstImage->addStroke(first);
			lastImage->addStroke(last);
		}

		TUndoManager::manager()->beginBlock();
		for (int i = 0; i < m; ++i) {
			TFrameId fid = fids[i];
			TToonzImageP img = (TToonzImageP)m_level->getFrame(fid, true);
			if (!img)
				continue;
			double t = m > 1 ? (double)i / (double)(m - 1) : 0.5;
			if (m_closeType.getValue() == RECT_CLOSE)
				applyAutoclose(img, interpolateRect(firstRect, lastRect, t));
			else if ((m_closeType.getValue() == FREEHAND_CLOSE || m_closeType.getValue() == POLYLINE_CLOSE) &&
					 firstStroke && lastStroke)
				doClose(t, img, firstImage, lastImage);
			m_level->getProperties()->setDirtyFlag(true);
		}
		TUndoManager::manager()->endBlock();

		TTool::getApplication()->getCurrentXsheet()->notifyXsheetChanged();

		//		TNotifier::instance()->notify(TLevelChange());
		//		TNotifier::instance()->notify(TStageChange());
	}

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

	void multiApplyAutoclose(TFrameId firstFrameId, TFrameId lastFrameId)
	{
		int r0 = firstFrameId.getNumber();
		int r1 = lastFrameId.getNumber();

		if (r0 > r1) {
			tswap(r0, r1);
			tswap(firstFrameId, lastFrameId);
		}
		if ((r1 - r0) < 2)
			return;

		TUndoManager::manager()->beginBlock();
		for (int i = r0; i <= r1; ++i) {
			TFrameId fid(i);
			TImageP img = m_level->getFrame(fid, true);
			applyAutoclose(img);
		}
		TUndoManager::manager()->endBlock();

		TTool::getApplication()->getCurrentXsheet()->notifyXsheetChanged();

		//		TNotifier::instance()->notify(TLevelChange());
		//		TNotifier::instance()->notify(TStageChange());
	}

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

	void leftButtonUp(const TPointD &pos, const TMouseEvent &e)
	{
		TToonzImageP ti = TToonzImageP(getImage(true));
		if (!ti)
			return;

		/*-- Rectの座標の向きを揃える --*/
		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);

		TTool::Application *app = TTool::getApplication();

		m_selecting = false;
		TRasterCM32P ras;
		if (m_closeType.getValue() == RECT_CLOSE) {
			if (m_multi.getValue()) {
				if (m_firstFrameSelected) {
					multiApplyAutoclose(m_firstFrameId, getFrameId(), m_firstRect, m_selectingRect);
					invalidate(m_selectingRect.enlarge(2));
					if (e.isShiftPressed()) {
						m_firstRect = m_selectingRect;
						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();
					}
				} else {
					m_isXsheetCell = app->getCurrentFrame()->isEditingScene();
					//if (m_isXsheetCell)
					m_currCell = std::pair<int, int>(getColumnIndex(), this->getFrame());
				}
				return;
			}

			/*-- AutoCloseが実行されたか判定する --*/
			if (!applyAutoclose(ti, m_selectingRect)) {
				if (m_stroke) {
					delete m_stroke;
					m_stroke = 0;
				}
				invalidate();
				return;
			}

			invalidate();
			notifyImageChanged();
		} else if (m_closeType.getValue() == FREEHAND_CLOSE) {
			closeFreehand(pos);
			if (m_multi.getValue())
				multiAutocloseRegion(m_stroke, e);
			else
				applyAutoclose(ti, TRectD(), m_stroke);
			invalidate();
		}
		if (m_stroke) {
			delete m_stroke;
			m_stroke = 0;
		}
	}

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

	void draw()
	{
		double pixelSize2 = getPixelSize() * getPixelSize();
		m_thick = sqrt(pixelSize2) / 2.0;
		if (m_closeType.getValue() == RECT_CLOSE) {
			TPixel color = ToonzCheck::instance()->getChecks() & ToonzCheck::eBlackBg ? TPixel32::White : TPixel32::Black;
			if (m_multi.getValue() && m_firstFrameSelected)
				drawRect(m_firstRect, color, 0x3F33, true);

			if (m_selecting || (m_multi.getValue() && !m_firstFrameSelected))
				drawRect(m_selectingRect, color, 0x3F33, true);
		}
		if ((m_closeType.getValue() == FREEHAND_CLOSE || m_closeType.getValue() == POLYLINE_CLOSE) && m_multi.getValue() && m_firstStroke) {
			TPixel color = ToonzCheck::instance()->getChecks() & ToonzCheck::eBlackBg ? TPixel32::White : TPixel32::Black;
			tglColor(color);
			drawStrokeCenterline(*m_firstStroke, 1);
		}
		if (m_closeType.getValue() == POLYLINE_CLOSE && !m_polyline.empty()) {
			TPixel color = ToonzCheck::instance()->getChecks() & ToonzCheck::eBlackBg ? TPixel32::White : TPixel32::Black;
			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_mousePosition);
			glEnd();
		} else if (m_multi.getValue() && m_firstFrameSelected)
			drawCross(m_firstPoint, 5);
	}

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

	bool onPropertyChanged(std::string propertyName)
	{
		if (propertyName == m_closeType.getName()) {
			AutocloseVectorType = ::to_string(m_closeType.getValue());
			resetMulti();
		}

		else if (propertyName == m_distance.getName())
			AutocloseDistance = m_distance.getValue();

		else if (propertyName == m_angle.getName())
			AutocloseAngle = m_angle.getValue();

		else if (propertyName == m_inkIndex.getName()) {
		}

		else if (propertyName == m_opacity.getName())
			AutocloseOpacity = m_opacity.getValue();

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

		if (ToonzCheck::instance()->getChecks() & ToonzCheck::eAutoclose)
			notifyImageChanged();

		return true;
	}

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

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

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

	void 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_closeType.getValue() == RECT_CLOSE && m_selectingRect.isEmpty()) ||
			((m_closeType.getValue() == FREEHAND_CLOSE || m_closeType.getValue() == POLYLINE_CLOSE) && !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_closeType.getValue() == RECT_CLOSE) {
				assert(!m_selectingRect.isEmpty());
				m_firstRect = m_selectingRect;
			}
		}
	}

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

	void leftButtonDown(const TPointD &pos, const TMouseEvent &)
	{
		TToonzImageP ti = TToonzImageP(getImage(true));
		if (!ti)
			return;

		if (m_closeType.getValue() == RECT_CLOSE) {
			m_selecting = true;
			m_selectingRect.x0 = pos.x;
			m_selectingRect.y0 = pos.y;
			m_selectingRect.x1 = pos.x + 1;
			m_selectingRect.y1 = pos.y + 1;
			return;
		} else if (m_closeType.getValue() == FREEHAND_CLOSE) {
			startFreehand(pos);
			return;
		} else if (m_closeType.getValue() == POLYLINE_CLOSE) {
			addPointPolyline(pos);
			return;
		} else if (m_closeType.getValue() == NORMAL_CLOSE) {
			if (m_multi.getValue()) {
				TTool::Application *app = TTool::getApplication();
				if (m_firstFrameSelected) {
					multiApplyAutoclose(m_firstFrameId, getFrameId());
					invalidate();
					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();
					//if (m_isXsheetCell)
					m_currCell = std::pair<int, int>(getColumnIndex(), getFrame());
					m_firstFrameSelected = true;
					m_firstPoint = pos;
				}
				invalidate();
				return;
			}

			m_selecting = false;
			applyAutoclose(ti);
			invalidate();
			notifyImageChanged();
		}
	}

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

	void leftButtonDoubleClick(const TPointD &pos, const TMouseEvent &e)
	{
		TToonzImageP ti = TToonzImageP(getImage(true));
		if (m_closeType.getValue() == POLYLINE_CLOSE && ti) {
			closePolyline(pos);

			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();
			m_stroke = new TStroke(strokePoints);
			assert(m_stroke->getPoint(0) == m_stroke->getPoint(1));
			if (m_multi.getValue())
				multiAutocloseRegion(m_stroke, e);
			else
				applyAutoclose(ti, TRectD(), m_stroke);
			invalidate();
		}
		if (m_stroke) {
			delete m_stroke;
			m_stroke = 0;
		}
	}

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

	void mouseMove(const TPointD &pos, const TMouseEvent &e)
	{
		if (m_closeType.getValue() == POLYLINE_CLOSE) {
			m_mousePosition = pos;
			invalidate();
		}
	}

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

	void onEnter()
	{
		//      getApplication()->editImage();
	}

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

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

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

	void onActivate()
	{
		if (m_firstTime) {
			m_closeType.setValue(::to_wstring(AutocloseVectorType.getValue()));
			m_distance.setValue(AutocloseDistance);
			m_angle.setValue(AutocloseAngle);
			m_opacity.setValue(AutocloseOpacity);
			m_multi.setValue(AutocloseRange ? 1 : 0);
			m_firstTime = false;
		}
		//			getApplication()->editImage();
		resetMulti();
	}

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

	void onDeactivate()
	{
	}

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

	int getCursorId() const
	{
		if (ToonzCheck::instance()->getChecks() & ToonzCheck::eBlackBg)
			return ToolCursor::TapeCursorWhite;
		else
			return ToolCursor::TapeCursor;
	}

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

	//!Viene aggiunto \b pos a \b m_track e disegnato il primo pezzetto del lazzo. Viene inizializzato \b m_firstPos
	void startFreehand(const TPointD &pos)
	{
		m_track.clear();
		m_firstPos = pos;
		double pixelSize2 = getPixelSize() * getPixelSize();
		m_track.add(TThickPoint(pos, m_thick), pixelSize2);
		TPointD dpiScale = m_viewer->getDpiScale();
#if defined(MACOSX)
//getViewer()->prepareForegroundDrawing();
#endif
		//			getViewer()->makeCurrent();
		TPixel color = ToonzCheck::instance()->getChecks() & ToonzCheck::eBlackBg ? TPixel32::White : TPixel32::Black;
		tglColor(color);
		m_viewer->startForegroundDrawing();
		glPushMatrix();
		glScaled(dpiScale.x, dpiScale.y, 1);
		m_track.drawLastFragments();
		glPopMatrix();
		getViewer()->endForegroundDrawing();
	}

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

	//!Viene aggiunto \b pos a \b m_track e disegnato un altro pezzetto del lazzo.
	void freehandDrag(const TPointD &pos)
	{
#if defined(MACOSX)
//getViewer()->enableRedraw(false);
#endif

		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);
		double pixelSize2 = getPixelSize() * getPixelSize();
		m_track.add(TThickPoint(pos, m_thick), pixelSize2);
		m_track.drawLastFragments();
		glPopMatrix();
		getViewer()->endForegroundDrawing();
	}

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

	//!Viene chiuso il lazzo (si aggiunge l'ultimo punto ad m_track) e viene creato lo stroke rappresentante il lazzo.
	void closeFreehand(const TPointD &pos)
	{
#if defined(MACOSX)
//getViewer()->enableRedraw(true);
#endif
		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);
		m_stroke = m_track.makeStroke(error);
		m_stroke->setStyle(1);
	}

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

	//!Viene aggiunto un punto al vettore m_polyline.
	void addPointPolyline(const TPointD &pos)
	{
		m_firstPos = pos;
		//m_mousePosition = pos;

		TPointD dpiScale = m_viewer->getDpiScale();

#if defined(MACOSX)
//getViewer()->prepareForegroundDrawing();
#endif
		//				getViewer()->makeCurrent();
		TPixel color = ToonzCheck::instance()->getChecks() & ToonzCheck::eBlackBg ? TPixel32::White : TPixel32::Black;
		tglColor(color);
		getViewer()->startForegroundDrawing();

#if defined(MACOSX)
//getViewer()->enableRedraw(m_closeType.getValue() == POLYLINE_CLOSE);
#endif

		glPushMatrix();
		glScaled(dpiScale.x, dpiScale.y, 1);
		m_polyline.push_back(pos);
		glPopMatrix();
		getViewer()->endForegroundDrawing();
	}

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

	//!Agginge l'ultimo pos a \b m_polyline e chiude la spezzata (aggiunge \b m_polyline.front() alla fine del vettore)
	void closePolyline(const TPointD &pos)
	{
		if (m_polyline.size() <= 1)
			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());
		invalidate();
	}

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

	//! Elimina i segmenti che non sono contenuti all'interno dello stroke!!!
	void checkSegments(std::vector<TAutocloser::Segment> &segments, TStroke *stroke,
					   const TRasterCM32P &ras, const TPoint &delta)
	{
		TVectorImage vi;
		TStroke *app = new TStroke();
		*app = *stroke;
		app->transform(TTranslation(convert(ras->getCenter())));
		vi.addStroke(app);
		vi.findRegions();
		std::vector<TAutocloser::Segment>::iterator it = segments.begin();
		for (; it < segments.end(); it++) {
			if (it == segments.end())
				break;

			int i;
			bool isContained = false;
			for (i = 0; i < (int)vi.getRegionCount(); i++) {
				TRegion *reg = vi.getRegion(i);
				if (reg->contains(convert(it->first + delta)) && reg->contains(convert(it->second + delta))) {
					isContained = true;
					break;
				}
			}
			if (!isContained) {
				it = segments.erase(it);
				if (it != segments.end() && it != segments.begin())
					it--;
				else if (it == segments.end())
					break;
			}
		}
	}

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

	void multiAutocloseRegion(TStroke *stroke, const TMouseEvent &e)
	{
		TTool::Application *app = TTool::getApplication();
		if (m_firstStroke) {
			multiApplyAutoclose(m_firstFrameId, getFrameId(),
								TRectD(), TRectD(), m_firstStroke, stroke);
			invalidate();
			if (e.isShiftPressed()) {
				delete m_firstStroke;
				m_firstStroke = new TStroke(*stroke);
				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();
			}
		} else {
			m_isXsheetCell = app->getCurrentFrame()->isEditingScene();
			//if (m_isXsheetCell)
			m_currCell = std::pair<int, int>(getColumnIndex(), getFrame());
			m_firstStroke = new TStroke(*stroke);
		}
		return;
	}

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

	void doClose(double t, const TImageP &img,
				 const TVectorImageP &firstImage,
				 const TVectorImageP &lastImage)
	{
		if (t == 0)
			applyAutoclose(img, TRectD(), firstImage->getStroke(0));
		else if (t == 1)
			applyAutoclose(img, TRectD(), lastImage->getStroke(0));
		else {
			assert(firstImage->getStrokeCount() == 1);
			assert(lastImage->getStrokeCount() == 1);
			TVectorImageP vi = TInbetween(firstImage, lastImage).tween(t);
			assert(vi->getStrokeCount() == 1);
			applyAutoclose(img, TRectD(), vi->getStroke(0));
		}
	}

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

} rasterTapeTool;