| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_drawinglayer.hxx" |
| |
| #include <drawinglayer/primitive2d/cropprimitive2d.hxx> |
| #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx> |
| #include <basegfx/matrix/b2dhommatrix.hxx> |
| #include <basegfx/matrix/b2dhommatrixtools.hxx> |
| #include <drawinglayer/primitive2d/transformprimitive2d.hxx> |
| #include <basegfx/polygon/b2dpolygon.hxx> |
| #include <basegfx/polygon/b2dpolygontools.hxx> |
| #include <drawinglayer/primitive2d/maskprimitive2d.hxx> |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| using namespace com::sun::star; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| namespace drawinglayer |
| { |
| namespace primitive2d |
| { |
| CropPrimitive2D::CropPrimitive2D( |
| const Primitive2DSequence& rChildren, |
| const basegfx::B2DHomMatrix& rTransformation, |
| double fCropLeft, |
| double fCropTop, |
| double fCropRight, |
| double fCropBottom) |
| : GroupPrimitive2D(rChildren), |
| maTransformation(rTransformation), |
| mfCropLeft(fCropLeft), |
| mfCropTop(fCropTop), |
| mfCropRight(fCropRight), |
| mfCropBottom(fCropBottom) |
| { |
| } |
| |
| bool CropPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const |
| { |
| if(GroupPrimitive2D::operator==(rPrimitive)) |
| { |
| const CropPrimitive2D& rCompare = static_cast< const CropPrimitive2D& >(rPrimitive); |
| |
| return (getTransformation() == rCompare.getTransformation() |
| && getCropLeft() == rCompare.getCropLeft() |
| && getCropTop() == rCompare.getCropTop() |
| && getCropRight() == rCompare.getCropRight() |
| && getCropBottom() == rCompare.getCropBottom()); |
| } |
| |
| return false; |
| } |
| |
| Primitive2DSequence CropPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const |
| { |
| Primitive2DSequence xRetval; |
| |
| if(getChildren().hasElements()) |
| { |
| // get original object scale in unit coordinates (no mirroring) |
| const basegfx::B2DVector aObjectScale(basegfx::absolute(getTransformation() * basegfx::B2DVector(1.0, 1.0))); |
| |
| // we handle cropping, so when no width or no height, content will be empty, |
| // so only do something when we have a width and a height |
| if(!aObjectScale.equalZero()) |
| { |
| // calculate crop distances in unit coordinates. They are already combined with CropScaleFactor, thus |
| // are relative only to object scale |
| const double fBackScaleX(basegfx::fTools::equalZero(aObjectScale.getX()) ? 1.0 : 1.0 / fabs(aObjectScale.getX())); |
| const double fBackScaleY(basegfx::fTools::equalZero(aObjectScale.getY()) ? 1.0 : 1.0 / fabs(aObjectScale.getY())); |
| const double fLeft(getCropLeft() * fBackScaleX); |
| const double fTop(getCropTop() * fBackScaleY); |
| const double fRight(getCropRight() * fBackScaleX); |
| const double fBottom(getCropBottom() * fBackScaleY); |
| |
| // calc new unit range for comparisons; the original range is the unit range |
| const basegfx::B2DRange aUnitRange(0.0, 0.0, 1.0, 1.0); |
| const basegfx::B2DRange aNewRange( |
| -fLeft, |
| -fTop, |
| 1.0 + fRight, |
| 1.0 + fBottom); |
| |
| // if we have no overlap the crop has removed everything, so we do only |
| // have to create content if this is not the case |
| if(aNewRange.overlaps(aUnitRange)) |
| { |
| // create new transform; first take out old transform to get |
| // to unit coordinates by inverting. Inverting should be flawless |
| // since we already cheched that object size is not zero in X or Y |
| basegfx::B2DHomMatrix aNewTransform(getTransformation()); |
| |
| aNewTransform.invert(); |
| |
| // apply crop enlargement in unit coordinates |
| aNewTransform = basegfx::tools::createScaleTranslateB2DHomMatrix( |
| aNewRange.getRange(), |
| aNewRange.getMinimum()) * aNewTransform; |
| |
| // apply original transformation. Since we have manipulated the crop |
| // in unit coordinates we do not need to care about mirroring or |
| // a corrected point for eventual shear or rotation, this all comes for |
| // free |
| aNewTransform = getTransformation() * aNewTransform; |
| |
| // prepare TransformPrimitive2D with xPrimitive |
| const Primitive2DReference xTransformPrimitive( |
| new TransformPrimitive2D( |
| aNewTransform, |
| getChildren())); |
| |
| if(aUnitRange.isInside(aNewRange)) |
| { |
| // the new range is completely inside the old range (unit range), |
| // so no masking is needed |
| xRetval = Primitive2DSequence(&xTransformPrimitive, 1); |
| } |
| else |
| { |
| // mask with original object's bounds |
| basegfx::B2DPolyPolygon aMaskPolyPolygon(basegfx::tools::createUnitPolygon()); |
| aMaskPolyPolygon.transform(getTransformation()); |
| |
| // create maskPrimitive with aMaskPolyPolygon and aMaskContentVector |
| const Primitive2DReference xMask( |
| new MaskPrimitive2D( |
| aMaskPolyPolygon, |
| Primitive2DSequence(&xTransformPrimitive, 1))); |
| |
| xRetval = Primitive2DSequence(&xMask, 1); |
| } |
| } |
| } |
| } |
| |
| return xRetval; |
| } |
| |
| // provide unique ID |
| ImplPrimitrive2DIDBlock(CropPrimitive2D, PRIMITIVE2D_ID_CROPPRIMITIVE2D) |
| |
| } // end of namespace primitive2d |
| } // end of namespace drawinglayer |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // eof |
