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  1.   3bfa549e8bd242facba6762cc01e5183ff9505ef
  2.   toonz
  3.   sources
  4.   toonzqt
  5.   functionpaneltools.cpp
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#include "functionpaneltools.h"

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

// TnzLib includes
#include "toonz/tframehandle.h"

// TnzCore includes
#include "tundo.h"

// Qt includes
#include <QPainter>
#include <QMouseEvent>

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

MoveFrameDragTool::MoveFrameDragTool(FunctionPanel *panel, TFrameHandle *frameHandle)
	: m_panel(panel), m_frameHandle(frameHandle)
{
}

void MoveFrameDragTool::drag(QMouseEvent *e)
{
	double frame = m_panel->xToFrame(e->pos().x());
	m_panel->getSelection()->deselectAllKeyframes();
	m_frameHandle->setFrame(frame);
}

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

PanDragTool::PanDragTool(FunctionPanel *panel, bool xLocked, bool yLocked)
	: m_panel(panel), m_xLocked(xLocked), m_yLocked(yLocked)
{
}

void PanDragTool::click(QMouseEvent *e)
{
	m_oldPos = e->pos();
}

void PanDragTool::drag(QMouseEvent *e)
{
	QPoint delta = e->pos() - m_oldPos;
	if (m_xLocked)
		delta.setX(0);
	if (m_yLocked)
		delta.setY(0);
	m_panel->pan(delta);
	m_oldPos = e->pos();
}

//=============================================================================
/*--- Ruler部分ドラッグによるズーム ---*/
void ZoomDragTool::click(QMouseEvent *e)
{
	m_startPos = m_oldPos = m_startPos = e->pos();
}

void ZoomDragTool::drag(QMouseEvent *e)
{
	QPoint delta = e->pos() - m_oldPos;
	m_oldPos = e->pos();
	double sx = 1, sy = 1;
	//reflect horizontal drag for frame zoom
	double zoomFactor = exp(-0.0075 * ((m_zoomType == FrameZoom) ? -delta.x() : delta.y()));
	if (m_zoomType == FrameZoom)
		sx = zoomFactor;
	else
		sy = zoomFactor;
	m_panel->zoom(sx, sy, m_startPos);
}

void ZoomDragTool::release(QMouseEvent *e)
{
	if ((e->pos() - m_startPos).manhattanLength() < 2) {
		double frame = m_panel->xToFrame(e->pos().x());
		if (m_panel->getFrameHandle())
			m_panel->getFrameHandle()->setFrame(frame);
	}
}

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

void RectSelectTool::click(QMouseEvent *e)
{
	m_startPos = e->pos();
	m_rect = QRect();
}

void RectSelectTool::drag(QMouseEvent *e)
{
	m_rect = QRect(m_startPos, e->pos()).normalized();
	m_panel->getSelection()->deselectAllKeyframes();
	for (int i = 0; i < m_curve->getKeyframeCount(); i++) {
		QPointF p = m_panel->getWinPos(m_curve, m_curve->getKeyframe(i));
		if (m_rect.contains(tround(p.x()), tround(p.y())))
			m_panel->getSelection()->select(m_curve, i);
	}
	m_panel->update();
}

void RectSelectTool::release(QMouseEvent *e)
{
	m_panel->update();
}

void RectSelectTool::draw(QPainter &painter)
{
	painter.setPen(Qt::white);
	painter.setBrush(QColor(255, 255, 255, 127));
	if (!m_rect.isEmpty())
		painter.drawRect(m_rect);
}

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

MovePointDragTool::MovePointDragTool(
	FunctionPanel *panel,
	TDoubleParam *curve)
	: m_panel(panel), m_deltaFrame(0), m_speed0Length(0), m_speed0Index(-1), m_speed1Length(0), m_speed1Index(-1), m_groupEnabled(false), m_selection(0)
{
	TUndoManager::manager()->beginBlock();

	if (curve) {
		KeyframeSetter *setter = new KeyframeSetter(curve);
		m_setters.push_back(setter);
	} else {
		m_groupEnabled = true;
		FunctionTreeModel *model = panel->getModel();
		for (int i = 0; i < model->getActiveChannelCount(); i++) {
			FunctionTreeModel::Channel *channel = model->getActiveChannel(i);
			if (channel && channel->getParam()) {
				TDoubleParam *curve = channel->getParam();
				KeyframeSetter *setter = new KeyframeSetter(curve);
				m_setters.push_back(setter);
			}
		}
	}
}

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

MovePointDragTool::~MovePointDragTool()
{
	for (int i = 0; i < (int)m_setters.size(); i++)
		delete m_setters[i];
	m_setters.clear();
	TUndoManager::manager()->endBlock();
}

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

void MovePointDragTool::addKeyframe2(int kIndex)
{
	assert(m_setters.size() == 1);
	if (m_setters.size() == 1)
		m_setters[0]->selectKeyframe(kIndex);
}

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

void MovePointDragTool::createKeyframe(double frame)
{
	for (int i = 0; i < (int)m_setters.size(); i++) {
		KeyframeSetter *setter = m_setters[i];
		int kIndex = setter->createKeyframe(tround(frame));
		setter->selectKeyframe(kIndex);
	}
}

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

void MovePointDragTool::selectKeyframes(double frame)
{
	for (int i = 0; i < (int)m_setters.size(); i++) {
		KeyframeSetter *setter = m_setters[i];
		TDoubleParam *curve = setter->getCurve();
		setter->setPixelRatio(m_panel->getPixelRatio(curve));
		int kIndex = curve->getClosestKeyframe(frame);
		if (kIndex >= 0) {
			double kf = curve->keyframeIndexToFrame(kIndex);
			if (fabs(kf - frame) < 0.01)
				setter->selectKeyframe(kIndex);
		}
	}
}

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

void MovePointDragTool::setSelection(FunctionSelection *selection)
{
	if (selection) {
		assert(m_setters.size() == 1);
		if (m_setters.size() == 1) {
			TDoubleParam *curve = m_setters[0]->getCurve();
			assert(curve);
			if (curve) {
				m_selection = selection;
				for (int i = 0; i < curve->getKeyframeCount(); i++)
					if (selection->isSelected(curve, i))
						addKeyframe2(i);
			}
		}
	} else
		m_selection = selection;
}

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

void MovePointDragTool::click(QMouseEvent *e)
{
	m_startPos = m_oldPos = e->pos();
	m_deltaFrame = 0;
	double frame = m_panel->xToFrame(e->pos().x());

	for (int i = 0; i < (int)m_setters.size(); i++) {
		KeyframeSetter *setter = m_setters[i];
		TDoubleParam *curve = setter->getCurve();
		setter->setPixelRatio(m_panel->getPixelRatio(curve));
		if (!m_groupEnabled) {
			int kIndex = curve->getClosestKeyframe(frame);
			if (kIndex >= 0) {
				double kf = curve->keyframeIndexToFrame(kIndex);
				if (fabs(kf - frame) < 1)
					setter->selectKeyframe(kIndex);
			}
		}
	}
}

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

void MovePointDragTool::drag(QMouseEvent *e)
{
	// need ctrl modifier
	if (0 == (e->modifiers() & Qt::ControlModifier))
		return;

	QPoint pos = e->pos();

	// if shift is pressed then apply constraints (only horizontal or vertical moves)
	if (e->modifiers() & Qt::ShiftModifier) {
		QPoint delta = e->pos() - m_startPos;
		if (abs(delta.x()) > abs(delta.y()))
			pos.setY(m_startPos.y());
		else
			pos.setX(m_startPos.x());
	}

	if (m_groupEnabled)
		pos.setY(m_startPos.y());

	QPoint oldPos = m_oldPos;
	m_oldPos = pos;

	// compute frame increment. it must be an integer
	double totalDFrame = tround(
		m_panel->xToFrame(pos.x()) -
		m_panel->xToFrame(m_startPos.x()));
	double dFrame = totalDFrame - m_deltaFrame;
	m_deltaFrame = totalDFrame;

	for (int i = 0; i < (int)m_setters.size(); i++) {
		KeyframeSetter *setter = m_setters[i];
		TDoubleParam *curve = setter->getCurve();

		// compute value increment
		double dValue =
			m_panel->yToValue(curve, pos.y()) -
			m_panel->yToValue(curve, oldPos.y());

		setter->moveKeyframes(dFrame, dValue);
	}
	if (m_selection != 0 && m_setters.size() == 1) {
		KeyframeSetter *setter = m_setters[0];

		m_selection->deselectAllKeyframes();
		for (int i = 0; i < setter->getCurve()->getKeyframeCount(); i++)
			if (setter->isSelected(i))
				m_selection->select(setter->getCurve(), i);
	}

	m_panel->update();
}

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

void MovePointDragTool::release(QMouseEvent *e)
{
}

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

MoveHandleDragTool::MoveHandleDragTool(
	FunctionPanel *panel,
	TDoubleParam *curve,
	int kIndex,
	Handle handle)
	: m_panel(panel), m_curve(curve), m_kIndex(kIndex), m_handle(handle), m_deltaFrame(0), m_setter(curve, kIndex), m_segmentWidth(0), m_channelGroup(0)
{
}

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

void MoveHandleDragTool::click(QMouseEvent *e)
{
	m_startPos = e->pos();
	// m_startPos = m_oldPos = e->pos();
	m_deltaFrame = 0;
	m_keyframe = m_curve->getKeyframe(m_kIndex);
	m_keyframe.m_value = m_curve->getValue(m_keyframe.m_frame);
	if (m_handle == FunctionPanel::SpeedIn)
		m_keyframe.m_value = m_curve->getValue(m_keyframe.m_frame, true);

	if (m_channelGroup) {
		for (int i = 0; i < m_channelGroup->getChildCount(); i++) {
			TreeModel::Item *child = m_channelGroup->getChild(i);
			FunctionTreeModel::Channel *channel = dynamic_cast<FunctionTreeModel::Channel *>(child);
			if (channel && m_curve != channel->getParam()) {
				if (channel->getParam()->isKeyframe(m_keyframe.m_frame)) {
				}
			}
		}
	}

	if (m_handle == FunctionPanel::EaseInPercentage && m_kIndex > 0) {
		double previousFrame = m_curve->keyframeIndexToFrame(m_kIndex - 1);
		m_segmentWidth = m_keyframe.m_frame - previousFrame;
	}
	if (m_handle == FunctionPanel::EaseOutPercentage && m_kIndex + 1 < m_curve->getKeyframeCount()) {
		double nextFrame = m_curve->keyframeIndexToFrame(m_kIndex + 1);
		m_segmentWidth = nextFrame - m_keyframe.m_frame;
	}
	TPointD speed;

	if (m_keyframe.m_linkedHandles) {
		if (m_handle == FunctionPanel::SpeedIn && m_kIndex + 1 < m_curve->getKeyframeCount() && (m_keyframe.m_type != TDoubleKeyframe::SpeedInOut && (m_keyframe.m_type != TDoubleKeyframe::Expression ||
																																					  m_keyframe.m_expressionText.find("cycle") == std::string::npos)))
			speed = m_curve->getSpeedIn(m_kIndex);
		else if (m_handle == FunctionPanel::SpeedOut && m_keyframe.m_prevType != TDoubleKeyframe::SpeedInOut && m_kIndex > 0)
			speed = m_curve->getSpeedOut(m_kIndex);
	}
	if (norm2(speed) > 0.001) {
		QPointF a = m_panel->getWinPos(m_curve, speed) - m_panel->getWinPos(m_curve, TPointD());
		double aa = 1.0 / sqrt(a.x() * a.x() + a.y() * a.y());
		m_nSpeed = QPointF(-a.y() * aa, a.x() * aa);
	} else
		m_nSpeed = QPointF();
	m_setter.setPixelRatio(m_panel->getPixelRatio(m_curve));
}

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

void MoveHandleDragTool::drag(QMouseEvent *e)
{
	//need ctrl modifier
	if (0 == (e->modifiers() & Qt::ControlModifier))
		return;

	if (!m_curve)
		return;
	QPoint pos = e->pos();

	// if shift is pressed then apply constraints (only horizontal or vertical moves)
	if (e->modifiers() & Qt::ShiftModifier) {
		QPoint delta = e->pos() - m_startPos;
		if (abs(delta.x()) > abs(delta.y()))
			pos.setY(m_startPos.y());
		else
			pos.setX(m_startPos.x());
	}

	//QPoint oldPos = m_oldPos;
	//m_oldPos = pos;

	QPointF p0 = m_panel->getWinPos(m_curve, m_keyframe);
	QPointF posF(pos);

	if (m_nSpeed != QPointF(0, 0)) {
		QPointF delta = posF - p0;
		posF -= m_nSpeed * (delta.x() * m_nSpeed.x() + delta.y() * m_nSpeed.y());
		if ((m_handle == FunctionPanel::SpeedIn && posF.x() > p0.x()) || (m_handle == FunctionPanel::SpeedOut && posF.x() < p0.x()))
			posF = p0;
	} else {
		if ((m_handle == FunctionPanel::SpeedIn && posF.x() > p0.x()) || (m_handle == FunctionPanel::SpeedOut && posF.x() < p0.x()))
			posF.setX(p0.x());
	}

	double frame = m_panel->xToFrame(posF.x());
	double value = m_panel->yToValue(m_curve, posF.y());
	TPointD handlePos(frame - m_keyframe.m_frame, value - m_keyframe.m_value);
	switch (m_handle) {
	case FunctionPanel::SpeedIn:
		if (m_keyframe.m_type != TDoubleKeyframe::SpeedInOut) {
		}
		m_setter.setSpeedIn(handlePos);
		break;
	case FunctionPanel::SpeedOut:
		m_setter.setSpeedOut(handlePos);
		break;
	case FunctionPanel::EaseIn:
		m_setter.setEaseIn(handlePos.x);
		break;
	case FunctionPanel::EaseOut:
		m_setter.setEaseOut(handlePos.x);
		break;
	case FunctionPanel::EaseInPercentage:
		if (m_segmentWidth > 0)
			m_setter.setEaseIn(100.0 * handlePos.x / m_segmentWidth);
		break;
	case FunctionPanel::EaseOutPercentage:
		if (m_segmentWidth > 0)
			m_setter.setEaseOut(100.0 * handlePos.x / m_segmentWidth);
		break;
	case 100:
	case 101:
	case 102:
		break;
	default:
		assert(0);
	}
	m_panel->update();
}

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

void MoveHandleDragTool::release(QMouseEvent *e)
{
}

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

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

MoveGroupHandleDragTool::MoveGroupHandleDragTool(
	FunctionPanel *panel,
	double keyframePosition,
	Handle handle)
	: m_panel(panel), m_keyframePosition(keyframePosition), m_handle(handle)
{
	TUndoManager::manager()->beginBlock();
}

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

MoveGroupHandleDragTool::~MoveGroupHandleDragTool()
{
	for (int i = 0; i < (int)m_setters.size(); i++)
		delete m_setters[i].second;
	m_setters.clear();
	TUndoManager::manager()->endBlock();
}

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

void MoveGroupHandleDragTool::click(QMouseEvent *e)
{
	for (int i = 0; i < (int)m_setters.size(); i++)
		delete m_setters[i].second;
	m_setters.clear();

	FunctionTreeModel *model = m_panel->getModel();
	for (int i = 0; i < model->getActiveChannelCount(); i++) {
		FunctionTreeModel::Channel *channel = model->getActiveChannel(i);
		if (channel && channel->getParam()) {
			TDoubleParam *curve = channel->getParam();
			int kIndex = curve->getClosestKeyframe(m_keyframePosition);
			KeyframeSetter *setter = new KeyframeSetter(curve, kIndex);
			setter->setPixelRatio(m_panel->getPixelRatio(curve));
			TDoubleKeyframe kf = curve->getKeyframe(kIndex);
			m_setters.push_back(std::make_pair(kf, setter));
		}
	}
}

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

void MoveGroupHandleDragTool::drag(QMouseEvent *e)
{
	//  if(!m_curve) return;
	QPoint pos = e->pos();
	QPointF posF(pos);

	/*
  if(m_nSpeed != QPointF(0,0))
  {
    QPointF delta = posF-p0;
    posF -= m_nSpeed*(delta.x()*m_nSpeed.x()+delta.y()*m_nSpeed.y());
    if(  m_handle == FunctionPanel::SpeedIn && posF.x()>p0.x() 
      || m_handle == FunctionPanel::SpeedOut && posF.x()<p0.x())
      posF = p0;   
  }
  else
  {
    if(  m_handle == FunctionPanel::SpeedIn && posF.x()>p0.x() 
      || m_handle == FunctionPanel::SpeedOut && posF.x()<p0.x())
      posF.setX(p0.x());   
  }
*/

	double frame = m_panel->xToFrame(posF.x());

	for (int i = 0; i < (int)m_setters.size(); i++) {
		TDoubleKeyframe kf = m_setters[i].first;
		KeyframeSetter *setter = m_setters[i].second;

		if (m_handle == 101) // why the magic numbers... use enums!
		{
			kf.m_speedOut.x = frame - kf.m_frame;

			switch (kf.m_type) {
			case TDoubleKeyframe::SpeedInOut:
				setter->setSpeedOut(kf.m_speedOut);
				CASE TDoubleKeyframe::EaseInOut : setter->setEaseOut(kf.m_speedOut.x);
			DEFAULT:
				assert(false);
			}
		} else if (m_handle == 102) // aagghhrrr
		{
			kf.m_speedIn.x = frame - kf.m_frame;

			switch (kf.m_prevType) {
			case TDoubleKeyframe::SpeedInOut:
				setter->setSpeedIn(kf.m_speedIn);
				CASE TDoubleKeyframe::EaseInOut : setter->setEaseIn(kf.m_speedIn.x);
			DEFAULT:
				assert(false);
			}
		}
	}

	/*
  switch(m_handle)
  {


  case FunctionPanel::SpeedIn:
    if(m_keyframe.m_type != TDoubleKeyframe::SpeedInOut)
    {

    }
    m_setter.setSpeedIn(handlePos); 
    break;
  case FunctionPanel::SpeedOut:m_setter.setSpeedOut(handlePos); break;
  case FunctionPanel::EaseIn:m_setter.setEaseIn(handlePos.x); break;
  case FunctionPanel::EaseOut:m_setter.setEaseOut(handlePos.x); break;
  case FunctionPanel::EaseInPercentage:
    if(m_segmentWidth>0) 
      m_setter.setEaseIn(100.0*handlePos.x/m_segmentWidth); 
    break;
  case FunctionPanel::EaseOutPercentage:
    if(m_segmentWidth>0) 
      m_setter.setEaseOut(100.0*handlePos.x/m_segmentWidth); 
    break;
  case 100:
  case 101:
  case 102:
    break;
  default:assert(0);
  }
  */
	m_panel->update();
}

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

void MoveGroupHandleDragTool::release(QMouseEvent *e)
{
	for (int i = 0; i < (int)m_setters.size(); i++)
		delete m_setters[i].second;
	m_setters.clear();
}

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