acdbequitrianglejig.cpp

这是树上的代码

// AcDbEquiTriangleJig.cpp: implementation of the AcDbEquiTriangleJig class.
//
//////////////////////////////////////////////////////////////////////

#include "AcDbEquiTriangleJig.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

AcDbEquiTriangleJig::AcDbEquiTriangleJig()
{
	m_pEquiTriangle = new AcDbEquiTriangle;
	m_leftPoint.set(0, 0, 0);
	m_rightPoint.set(0, 0, 0);
	m_nInputFlag = -1;
	bDeleteIt = Adesk::kTrue;
}

AcDbEquiTriangleJig::~AcDbEquiTriangleJig()
{
	if(bDeleteIt)
		delete m_pEquiTriangle;
}

int 
AcDbEquiTriangleJig::setFlag(int nFlag)
{
	m_nInputFlag = nFlag;
	return m_nInputFlag;
}

AcEdJig::DragStatus
AcDbEquiTriangleJig::sampler()
{
	static AcGePoint3d leftPoint(0, 0, 0);
	static AcGePoint3d rightPoint(0, 0, 0);

	AcEdJig::DragStatus ds;
	setUserInputControls((UserInputControls)
		(AcEdJig::kNullResponseAccepted 
		| AcEdJig::kAccept3dCoordinates));
	switch(m_nInputFlag)
	{
	case 0:	// 获取正三边形的左下角点
		ds = acquirePoint(m_leftPoint);
		if(m_leftPoint != leftPoint)
			leftPoint = m_leftPoint;	// 保存	
		if(AcEdJig::kNormal == ds)
			ds = AcEdJig::kNoChange;
		break;
	case 1:	// 获取正三边形的右下角点
		ds = acquirePoint(m_rightPoint, m_leftPoint);
		if(m_rightPoint != rightPoint)
			rightPoint = m_rightPoint;	// 保存
		else if(AcEdJig::kNormal == ds)
			ds = AcEdJig::kNoChange;
		break;
	}

	return ds;
}

Adesk::Boolean
AcDbEquiTriangleJig::update()
{
	switch(m_nInputFlag)
	{
	case 0:
		break;
	case 1:
		m_pEquiTriangle->set(m_leftPoint, m_rightPoint);
		break;
	}
	return Adesk::kTrue;
}

AcDbEntity* 
AcDbEquiTriangleJig::entity() const
{
	return m_pEquiTriangle;
}

AcDbObjectId
AcDbEquiTriangleJig::append()
{
	bDeleteIt = Adesk::kFalse;
	return AcEdJig::append();
}