xref: /trunk/main/drawinglayer/source/primitive2d/texteffectprimitive2d.cxx (revision 464702f4)

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

#include <drawinglayer/primitive2d/texteffectprimitive2d.hxx>
#include <drawinglayer/geometry/viewinformation2d.hxx>
#include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx>
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>

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

namespace drawinglayer
{
	namespace primitive2d
	{
		static double fDiscreteSize(1.1);

		Primitive2DSequence TextEffectPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
		{
			Primitive2DSequence aRetval;

			// get the distance of one discrete units from target display. Use between 1.0 and sqrt(2) to
			// have good results on rotated objects, too
			const basegfx::B2DVector aDistance(rViewInformation.getInverseObjectToViewTransformation() *
                basegfx::B2DVector(fDiscreteSize, fDiscreteSize));
			const basegfx::B2DVector aDiagonalDistance(aDistance * (1.0 / 1.44));

			switch(getTextEffectStyle2D())
			{
				case TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED:
				case TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED:
				case TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT:
				case TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED_DEFAULT:
				{
					// prepare transform of sub-group back to (0,0) and align to X-Axis
                    basegfx::B2DHomMatrix aBackTransform(basegfx::tools::createTranslateB2DHomMatrix(
                        -getRotationCenter().getX(), -getRotationCenter().getY()));
					aBackTransform.rotate(-getDirection());

					// prepare transform of sub-group back to it's position and rotation
                    basegfx::B2DHomMatrix aForwardTransform(basegfx::tools::createRotateB2DHomMatrix(getDirection()));
					aForwardTransform.translate(getRotationCenter().getX(), getRotationCenter().getY());

					// create transformation for one discrete unit
					const bool bEmbossed(
						TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED  == getTextEffectStyle2D()
						|| TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT == getTextEffectStyle2D());
					const bool bDefaultTextColor(
						TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT == getTextEffectStyle2D()
						|| TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED_DEFAULT == getTextEffectStyle2D());
					basegfx::B2DHomMatrix aTransform(aBackTransform);
					aRetval.realloc(2);

					if(bEmbossed)
					{
						// to bottom-right
						aTransform.translate(aDiagonalDistance.getX(), aDiagonalDistance.getY());
					}
					else
					{
						// to top-left
						aTransform.translate(-aDiagonalDistance.getX(), -aDiagonalDistance.getY());
					}

					aTransform *= aForwardTransform;

					if(bDefaultTextColor)
					{
						// emboss/engrave in black, original forced to white
						const basegfx::BColorModifier aBColorModifierToGray(basegfx::BColor(0.0));
						const Primitive2DReference xModifiedColor(new ModifiedColorPrimitive2D(getTextContent(), aBColorModifierToGray));
						aRetval[0] = Primitive2DReference(new TransformPrimitive2D(aTransform, Primitive2DSequence(&xModifiedColor, 1)));

						// add original, too
						const basegfx::BColorModifier aBColorModifierToWhite(basegfx::BColor(1.0));
						aRetval[1] = Primitive2DReference(new ModifiedColorPrimitive2D(getTextContent(), aBColorModifierToWhite));
					}
					else
					{
						// emboss/engrave in gray, keep original's color
						const basegfx::BColorModifier aBColorModifierToGray(basegfx::BColor(0.75)); // 192
						const Primitive2DReference xModifiedColor(new ModifiedColorPrimitive2D(getTextContent(), aBColorModifierToGray));
						aRetval[0] = Primitive2DReference(new TransformPrimitive2D(aTransform, Primitive2DSequence(&xModifiedColor, 1)));

						// add original, too
						aRetval[1] = Primitive2DReference(new GroupPrimitive2D(getTextContent()));
					}

					break;
				}
				case TEXTEFFECTSTYLE2D_OUTLINE:
				{
					// create transform primitives in all directions
					basegfx::B2DHomMatrix aTransform;
					aRetval.realloc(9);

					aTransform.set(0, 2, aDistance.getX());
					aTransform.set(1, 2, 0.0);
					aRetval[0] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));

					aTransform.set(0, 2, aDiagonalDistance.getX());
					aTransform.set(1, 2, aDiagonalDistance.getY());
					aRetval[1] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));

					aTransform.set(0, 2, 0.0);
					aTransform.set(1, 2, aDistance.getY());
					aRetval[2] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));

					aTransform.set(0, 2, -aDiagonalDistance.getX());
					aTransform.set(1, 2, aDiagonalDistance.getY());
					aRetval[3] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));

					aTransform.set(0, 2, -aDistance.getX());
					aTransform.set(1, 2, 0.0);
					aRetval[4] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));

					aTransform.set(0, 2, -aDiagonalDistance.getX());
					aTransform.set(1, 2, -aDiagonalDistance.getY());
					aRetval[5] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));

					aTransform.set(0, 2, 0.0);
					aTransform.set(1, 2, -aDistance.getY());
					aRetval[6] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));

					aTransform.set(0, 2, aDiagonalDistance.getX());
					aTransform.set(1, 2, -aDiagonalDistance.getY());
					aRetval[7] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));

					// at last, place original over it, but force to white
					const basegfx::BColorModifier aBColorModifierToWhite(basegfx::BColor(1.0, 1.0, 1.0));
					aRetval[8] = Primitive2DReference(new ModifiedColorPrimitive2D(getTextContent(), aBColorModifierToWhite));

					break;
				}
			}

            return aRetval;
		}

		TextEffectPrimitive2D::TextEffectPrimitive2D(
            const Primitive2DSequence& rTextContent,
			const basegfx::B2DPoint& rRotationCenter,
			double fDirection,
            TextEffectStyle2D eTextEffectStyle2D)
		:	BufferedDecompositionPrimitive2D(),
            maTextContent(rTextContent),
			maRotationCenter(rRotationCenter),
			mfDirection(fDirection),
            meTextEffectStyle2D(eTextEffectStyle2D)
		{
		}

		bool TextEffectPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
		{
			if(BasePrimitive2D::operator==(rPrimitive))
			{
				const TextEffectPrimitive2D& rCompare = (TextEffectPrimitive2D&)rPrimitive;

				return (getTextContent() == rCompare.getTextContent()
                    && getRotationCenter() == rCompare.getRotationCenter()
					&& getDirection() == rCompare.getDirection()
					&& getTextEffectStyle2D() == rCompare.getTextEffectStyle2D());
			}

			return false;
		}

		basegfx::B2DRange TextEffectPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
		{
			// get range of content and grow by used fDiscreteSize. That way it is not necessary to ask
			// the whole decomposition for it's ranges (which may be expensive with outline mode which
			// then will ask 9 times at nearly the same content. This may even be refined here using the
			// TextEffectStyle information, e.g. for TEXTEFFECTSTYLE2D_RELIEF the grow needs only to
			// be in two directions
			basegfx::B2DRange aRetval(getB2DRangeFromPrimitive2DSequence(getTextContent(), rViewInformation));
			aRetval.grow(fDiscreteSize);

			return aRetval;
		}

		Primitive2DSequence TextEffectPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
		{
			::osl::MutexGuard aGuard( m_aMutex );

			if(getBuffered2DDecomposition().hasElements())
			{
				if(maLastObjectToViewTransformation != rViewInformation.getObjectToViewTransformation())
				{
					// conditions of last local decomposition have changed, delete
					const_cast< TextEffectPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence());
				}
			}

			if(!getBuffered2DDecomposition().hasElements())
			{
				// remember ViewRange and ViewTransformation
				const_cast< TextEffectPrimitive2D* >(this)->maLastObjectToViewTransformation = rViewInformation.getObjectToViewTransformation();
			}

			// use parent implementation
			return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation);
		}

		// provide unique ID
		ImplPrimitrive2DIDBlock(TextEffectPrimitive2D, PRIMITIVE2D_ID_TEXTEFFECTPRIMITIVE2D)

	} // end of namespace primitive2d
} // end of namespace drawinglayer

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