xref: /trunk/main/svx/source/svdraw/sdrhittesthelper.cxx (revision cdf0e10c)

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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svx.hxx"

#include <svx/sdrhittesthelper.hxx>
#include <svx/obj3d.hxx>
#include <svx/helperhittest3d.hxx>
#include <svx/sdrpagewindow.hxx>
#include <svx/sdr/contact/viewobjectcontact.hxx>
#include <svx/sdr/contact/displayinfo.hxx>
#include <svx/sdr/contact/objectcontact.hxx>
#include <drawinglayer/processor2d/hittestprocessor2d.hxx>
#include <svx/svdpagv.hxx>
#include <svx/sdr/contact/viewcontact.hxx>

////////////////////////////////////////////////////////////////////////////////////////////////////
// #i101872# new Object HitTest as View-tooling

SdrObject* SdrObjectPrimitiveHit(
	const SdrObject& rObject,
	const Point& rPnt,
	sal_uInt16 nTol,
	const SdrPageView& rSdrPageView,
	const SetOfByte* pVisiLayer,
    bool bTextOnly)
{
	SdrObject* pResult = 0;

    if(rObject.GetSubList() && rObject.GetSubList()->GetObjCount())
    {
        // group or scene with content. Single 3D objects also have a
        // true == rObject.GetSubList(), but no content
        pResult = SdrObjListPrimitiveHit(*rObject.GetSubList(), rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly);
    }
	else
	{
		if( rObject.IsVisible() && (!pVisiLayer || pVisiLayer->IsSet(rObject.GetLayer())))
		{
			// single object, 3d object, empty scene or empty group. Check if
            // it's a single 3D object
			const E3dCompoundObject* pE3dCompoundObject = dynamic_cast< const E3dCompoundObject* >(&rObject);

			if(pE3dCompoundObject)
			{
				const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y());

				if(checkHitSingle3DObject(aHitPosition, *pE3dCompoundObject))
				{
    				pResult = const_cast< E3dCompoundObject* >(pE3dCompoundObject);
				}
			}
			else
			{
				// not a single 3D object; Check in first PageWindow using prmitives (only SC
				// with split views uses multiple PageWindows nowadays)
				if(rSdrPageView.PageWindowCount())
				{
					const double fLogicTolerance(nTol);
					const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y());
					const sdr::contact::ViewObjectContact& rVOC = rObject.GetViewContact().GetViewObjectContact(
						rSdrPageView.GetPageWindow(0)->GetObjectContact());

					if(ViewObjectContactPrimitiveHit(rVOC, aHitPosition, fLogicTolerance, bTextOnly))
					{
      					pResult = const_cast< SdrObject* >(&rObject);
					}
				}
			}
		}
	}

	return pResult;
}

/////////////////////////////////////////////////////////////////////

SdrObject* SdrObjListPrimitiveHit(
	const SdrObjList& rList,
	const Point& rPnt,
	sal_uInt16 nTol,
	const SdrPageView& rSdrPageView,
	const SetOfByte* pVisiLayer,
    bool bTextOnly)
{
	sal_uInt32 nObjNum(rList.GetObjCount());
    SdrObject* pRetval = 0;

	while(!pRetval && nObjNum > 0)
	{
		nObjNum--;
		SdrObject* pObj = rList.GetObj(nObjNum);

        pRetval = SdrObjectPrimitiveHit(*pObj, rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly);
	}

    return pRetval;
}

/////////////////////////////////////////////////////////////////////

bool ViewObjectContactPrimitiveHit(
    const sdr::contact::ViewObjectContact& rVOC,
	const basegfx::B2DPoint& rHitPosition,
    double fLogicHitTolerance,
    bool bTextOnly)
{
    basegfx::B2DRange aObjectRange(rVOC.getObjectRange());

	if(!aObjectRange.isEmpty())
	{
		// first do a rough B2DRange based HitTest; do not forget to
		// include the HitTolerance if given
		if(basegfx::fTools::more(fLogicHitTolerance, 0.0))
		{
			aObjectRange.grow(fLogicHitTolerance);
		}

		if(aObjectRange.isInside(rHitPosition))
		{
			// get primitive sequence
			sdr::contact::DisplayInfo aDisplayInfo;
			const drawinglayer::primitive2d::Primitive2DSequence& rSequence(rVOC.getPrimitive2DSequence(aDisplayInfo));

			if(rSequence.hasElements())
			{
				// create a HitTest processor
				const drawinglayer::geometry::ViewInformation2D& rViewInformation2D = rVOC.GetObjectContact().getViewInformation2D();
				drawinglayer::processor2d::HitTestProcessor2D aHitTestProcessor2D(
					rViewInformation2D,
					rHitPosition,
					fLogicHitTolerance,
                    bTextOnly);

				// feed it with the primitives
				aHitTestProcessor2D.process(rSequence);

				// deliver result
				return aHitTestProcessor2D.getHit();
			}
		}
	}

	return false;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
// eof