• 2024年11月5日星期二
• 分类于 windows程序
• 需要 4 分钟阅读时间

OverRule相关demo

参考ADNblogdemo

Locking an Entity in AutoCAD using ObjectARX

CGripOverrule.h

#pragma once
#include "dbentityoverrule.h"
class CGripOverrule : public AcDbGripOverrule
{
public:
    static CGripOverrule *_pTheOverrule;

    ACRX_DECLARE_MEMBERS(CGripOverrule);

    bool isApplicable(const AcRxObject *pOverruledSubject) const
    {

        return true;
    }

    // Add the overrule.

    // Take care about calling "CGripOverrule::rxInit();"

    // in "On_kInitAppMsg" of the arx that uses this overrule.

    static void CGripOverrule::AddOverrule()
    {
        if (_pTheOverrule != NULL)

            return;
        _pTheOverrule = new CGripOverrule();
        AcRxOverrule::addOverrule(AcDbCircle::desc(), _pTheOverrule, true);
        CGripOverrule::setIsOverruling(true);
    }

    static void CGripOverrule::RemoveOverrule()
    {
        if (_pTheOverrule == NULL)
            return;

        CGripOverrule::setIsOverruling(false);
        AcRxOverrule::removeOverrule(AcDbCircle::desc(), _pTheOverrule);
        delete _pTheOverrule;
        _pTheOverrule = NULL;
    }

    Acad::ErrorStatus CGripOverrule::getGripPoints(const AcDbEntity *pSubject,
                                                   AcGePoint3dArray &gripPoints,
                                                   AcDbIntArray &osnapModes,
                                                   AcDbIntArray &geomIds)
    {
        AcDbCircle *pCircle = AcDbCircle::cast(pSubject);
        if (pCircle != NULL)
        { // Remove the grip points, for a circle

            gripPoints.removeAll();
            return Acad::eNotApplicable;
        }

        return AcDbGripOverrule::getGripPoints(pSubject, gripPoints, osnapModes, geomIds);
    }

    Acad::ErrorStatus CGripOverrule::getGripPoints(
        const AcDbEntity *pSubject,
        AcDbGripDataPtrArray &grips,
        const double curViewUnitSize,
        const int gripSize,
        const AcGeVector3d &curViewDir,
        const int bitflags)
    {
        AcDbCircle *pCircle = AcDbCircle::cast(pSubject);
        if (pCircle != NULL)
        { // Remove the grip points, for a circle
            grips.removeAll();
            return Acad::eNotApplicable;
        }

        return AcDbGripOverrule::getGripPoints(
            pSubject,
            grips,
            curViewUnitSize,
            gripSize,
            curViewDir,
            bitflags);
    }
};

CGripOverrule *CGripOverrule::_pTheOverrule = NULL;
ACRX_NO_CONS_DEFINE_MEMBERS(CGripOverrule, AcDbGripOverrule);

CTransformOverrule.h

#pragma once
#include "dbentityoverrule.h"
class CTransformOverrule :
    public AcDbTransformOverrule
{
public:
    static CTransformOverrule* _pTheOverrule;
    ACRX_DECLARE_MEMBERS(CTransformOverrule);
    bool isApplicable(const AcRxObject* pOverruledSubject) const
    {
        return true;
    }
    Acad::ErrorStatus transformBy(
        AcDbEntity* pSubject,
        const AcGeMatrix3d& xform)
    {
        if (pSubject->isA() != AcDbCircle::desc())
            return Acad::eOk;
        AcDbCircle* pCircle = AcDbCircle::cast(pSubject);
        if (pCircle != NULL)
            return Acad::eNotApplicable;
        return AcDbTransformOverrule::transformBy(pSubject, xform);
    }
    // Take care about calling "CTransformOverrule::rxInit();"
    // in "On_kInitAppMsg" of the arx that uses this overrule.
    static void CTransformOverrule::AddOverrule()
    {
        if (_pTheOverrule != NULL)
            return;
        _pTheOverrule = new CTransformOverrule();
        AcRxOverrule::addOverrule(
            AcDbCircle::desc(),
            _pTheOverrule,
            true
        );
        CTransformOverrule::setIsOverruling(true);
    }
    static void CTransformOverrule::RemoveOverrule()
    {
        if (_pTheOverrule == NULL)
            return;
        CTransformOverrule::setIsOverruling(false);
        AcRxOverrule::removeOverrule(
            AcDbCircle::desc(),
            _pTheOverrule);
        delete _pTheOverrule;
        _pTheOverrule = NULL;
    }
};
CTransformOverrule* CTransformOverrule::_pTheOverrule = NULL;
ACRX_NO_CONS_DEFINE_MEMBERS(CTransformOverrule, AcDbTransformOverrule);

On_kInitAppMsg

virtual AcRx::AppRetCode On_kInitAppMsg (void *pkt)
{
    AcRx::AppRetCode retCode = AcRxArxApp::On_kInitAppMsg (pkt) ;
    CGripOverrule::rxInit();
    CTransformOverrule::rxInit();
    acrxBuildClassHierarchy();
    return (retCode) ;
}

AddCommand

// Command to enable overruling
static void asdkOverrule_Start(void)
{
    CTransformOverrule::AddOverrule();
    CGripOverrule::AddOverrule();
}
// Command to disable overruling
static void asdkOverrule_Stop(void)
{
    CTransformOverrule::RemoveOverrule();
    CGripOverrule::RemoveOverrule();
}

增加CDrawCircleOverRule

CDrawCircleOverRule.h

class CDrawCircleOverRule: public AcGiDrawableOverrule
{
public:
    CDrawCircleOverRule();
    ~CDrawCircleOverRule();
    //ACRX_DECLARE_MEMBERS(CDrawCircleOverRule);
    virtual bool isApplicable(const AcRxObject* pOverruledSubject)  const;
    virtual Adesk::Boolean  worldDraw(AcGiDrawable* pSubject, AcGiWorldDraw * wd);
};

CDrawCircleOverRule.cpp

#include "stdafx.h"
#include "CDrawCircleOverRule.h"
CDrawCircleOverRule::CDrawCircleOverRule()
{
}

CDrawCircleOverRule::~CDrawCircleOverRule()
{
}

bool CDrawCircleOverRule::isApplicable(const AcRxObject* pOverruledSubject)  const
{
    return true;
}

Adesk::Boolean CDrawCircleOverRule::worldDraw(AcGiDrawable* pSubject, AcGiWorldDraw * wd)
{
    AcDbCircle* pCircle = AcDbCircle::cast(pSubject);
    if (pCircle != nullptr)
    {
        AcGePoint3d cenPt = pCircle->center();
        double dRadius = pCircle->radius();

        AcDbLine pline;
        AcGePoint3d startPt, endPt;
        acutPolar(asDblArray(cenPt), PI, 1.5*dRadius, asDblArray(startPt));
        acutPolar(asDblArray(cenPt), 0, 1.5*dRadius, asDblArray(endPt));

        wd->geometry().circle(cenPt, dRadius, AcGeVector3d::kZAxis);
        wd->subEntityTraits().setColor(1);
        pline.setStartPoint(startPt);
        pline.setEndPoint(endPt);
        pline.worldDraw(wd);

        acutPolar(asDblArray(cenPt), PI/2, 1.5*dRadius, asDblArray(startPt));
        acutPolar(asDblArray(cenPt), 3*PI/2, 1.5*dRadius, asDblArray(endPt));
        pline.setStartPoint(startPt);
        pline.setEndPoint(endPt);
        pline.worldDraw(wd);

    }

    return Adesk::kTrue;
}

AddCommand

CDrawCircleOverRule*  theOverrule = nullptr;

static void MyGroupStart() {
    // Put your command code here
    CTransformOverrule::AddOverrule();
    CGripOverrule::AddOverrule();
    if (theOverrule == nullptr)
    {
        theOverrule = new CDrawCircleOverRule();
        AcRxOverrule::addOverrule(AcDbCircle::desc(), theOverrule, true);
    }
    CDrawCircleOverRule::setIsOverruling(true);
}
static void MyGroupStop() {
    // Put your command code here
    CTransformOverrule::RemoveOverrule();
    CGripOverrule::RemoveOverrule();
    if (theOverrule != nullptr)
    {
        AcRxOverrule::removeOverrule(AcDbCircle::desc(), theOverrule);
        theOverrule = nullptr;
    }
}