1ddde725dSArmin Le Grand /************************************************************** 2*a6c67450Smseidel * 3ddde725dSArmin Le Grand * Licensed to the Apache Software Foundation (ASF) under one 4ddde725dSArmin Le Grand * or more contributor license agreements. See the NOTICE file 5ddde725dSArmin Le Grand * distributed with this work for additional information 6ddde725dSArmin Le Grand * regarding copyright ownership. The ASF licenses this file 7ddde725dSArmin Le Grand * to you under the Apache License, Version 2.0 (the 8ddde725dSArmin Le Grand * "License"); you may not use this file except in compliance 9ddde725dSArmin Le Grand * with the License. You may obtain a copy of the License at 10*a6c67450Smseidel * 11ddde725dSArmin Le Grand * http://www.apache.org/licenses/LICENSE-2.0 12*a6c67450Smseidel * 13ddde725dSArmin Le Grand * Unless required by applicable law or agreed to in writing, 14ddde725dSArmin Le Grand * software distributed under the License is distributed on an 15ddde725dSArmin Le Grand * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16ddde725dSArmin Le Grand * KIND, either express or implied. See the License for the 17ddde725dSArmin Le Grand * specific language governing permissions and limitations 18ddde725dSArmin Le Grand * under the License. 19*a6c67450Smseidel * 20ddde725dSArmin Le Grand *************************************************************/ 21ddde725dSArmin Le Grand 22*a6c67450Smseidel 23*a6c67450Smseidel 24ddde725dSArmin Le Grand // MARKER(update_precomp.py): autogen include statement, do not remove 25ddde725dSArmin Le Grand #include "precompiled_drawinglayer.hxx" 26ddde725dSArmin Le Grand 27ddde725dSArmin Le Grand #include <drawinglayer/primitive2d/cropprimitive2d.hxx> 28ddde725dSArmin Le Grand #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx> 29ddde725dSArmin Le Grand #include <basegfx/matrix/b2dhommatrix.hxx> 30ddde725dSArmin Le Grand #include <basegfx/matrix/b2dhommatrixtools.hxx> 31ddde725dSArmin Le Grand #include <drawinglayer/primitive2d/transformprimitive2d.hxx> 32ddde725dSArmin Le Grand #include <basegfx/polygon/b2dpolygon.hxx> 33ddde725dSArmin Le Grand #include <basegfx/polygon/b2dpolygontools.hxx> 34ddde725dSArmin Le Grand #include <drawinglayer/primitive2d/maskprimitive2d.hxx> 35ddde725dSArmin Le Grand 36ddde725dSArmin Le Grand ////////////////////////////////////////////////////////////////////////////// 37ddde725dSArmin Le Grand 38ddde725dSArmin Le Grand using namespace com::sun::star; 39ddde725dSArmin Le Grand 40ddde725dSArmin Le Grand ////////////////////////////////////////////////////////////////////////////// 41ddde725dSArmin Le Grand 42ddde725dSArmin Le Grand namespace drawinglayer 43ddde725dSArmin Le Grand { 44ddde725dSArmin Le Grand namespace primitive2d 45ddde725dSArmin Le Grand { CropPrimitive2D(const Primitive2DSequence & rChildren,const basegfx::B2DHomMatrix & rTransformation,double fCropLeft,double fCropTop,double fCropRight,double fCropBottom)46ddde725dSArmin Le Grand CropPrimitive2D::CropPrimitive2D( 47ddde725dSArmin Le Grand const Primitive2DSequence& rChildren, 48*a6c67450Smseidel const basegfx::B2DHomMatrix& rTransformation, 49ddde725dSArmin Le Grand double fCropLeft, 50ddde725dSArmin Le Grand double fCropTop, 51ddde725dSArmin Le Grand double fCropRight, 52ddde725dSArmin Le Grand double fCropBottom) 53ddde725dSArmin Le Grand : GroupPrimitive2D(rChildren), 54ddde725dSArmin Le Grand maTransformation(rTransformation), 55ddde725dSArmin Le Grand mfCropLeft(fCropLeft), 56ddde725dSArmin Le Grand mfCropTop(fCropTop), 57ddde725dSArmin Le Grand mfCropRight(fCropRight), 58ddde725dSArmin Le Grand mfCropBottom(fCropBottom) 59ddde725dSArmin Le Grand { 60ddde725dSArmin Le Grand } 61ddde725dSArmin Le Grand operator ==(const BasePrimitive2D & rPrimitive) const62ddde725dSArmin Le Grand bool CropPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const 63ddde725dSArmin Le Grand { 64ddde725dSArmin Le Grand if(GroupPrimitive2D::operator==(rPrimitive)) 65ddde725dSArmin Le Grand { 66ddde725dSArmin Le Grand const CropPrimitive2D& rCompare = static_cast< const CropPrimitive2D& >(rPrimitive); 67ddde725dSArmin Le Grand 68ddde725dSArmin Le Grand return (getTransformation() == rCompare.getTransformation() 69ddde725dSArmin Le Grand && getCropLeft() == rCompare.getCropLeft() 70ddde725dSArmin Le Grand && getCropTop() == rCompare.getCropTop() 71ddde725dSArmin Le Grand && getCropRight() == rCompare.getCropRight() 72ddde725dSArmin Le Grand && getCropBottom() == rCompare.getCropBottom()); 73ddde725dSArmin Le Grand } 74ddde725dSArmin Le Grand 75ddde725dSArmin Le Grand return false; 76ddde725dSArmin Le Grand } 77ddde725dSArmin Le Grand get2DDecomposition(const geometry::ViewInformation2D &) const78ddde725dSArmin Le Grand Primitive2DSequence CropPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const 79ddde725dSArmin Le Grand { 80ddde725dSArmin Le Grand Primitive2DSequence xRetval; 81ddde725dSArmin Le Grand 82ddde725dSArmin Le Grand if(getChildren().hasElements()) 83ddde725dSArmin Le Grand { 84c0d661f1SArmin Le Grand // get original object scale in unit coordinates (no mirroring) 85c0d661f1SArmin Le Grand const basegfx::B2DVector aObjectScale(basegfx::absolute(getTransformation() * basegfx::B2DVector(1.0, 1.0))); 86ddde725dSArmin Le Grand 87c0d661f1SArmin Le Grand // we handle cropping, so when no width or no height, content will be empty, 88c0d661f1SArmin Le Grand // so only do something when we have a width and a height 89c0d661f1SArmin Le Grand if(!aObjectScale.equalZero()) 90ddde725dSArmin Le Grand { 91c0d661f1SArmin Le Grand // calculate crop distances in unit coordinates. They are already combined with CropScaleFactor, thus 92c0d661f1SArmin Le Grand // are relative only to object scale 93c0d661f1SArmin Le Grand const double fBackScaleX(basegfx::fTools::equalZero(aObjectScale.getX()) ? 1.0 : 1.0 / fabs(aObjectScale.getX())); 94c0d661f1SArmin Le Grand const double fBackScaleY(basegfx::fTools::equalZero(aObjectScale.getY()) ? 1.0 : 1.0 / fabs(aObjectScale.getY())); 95c0d661f1SArmin Le Grand const double fLeft(getCropLeft() * fBackScaleX); 96c0d661f1SArmin Le Grand const double fTop(getCropTop() * fBackScaleY); 97c0d661f1SArmin Le Grand const double fRight(getCropRight() * fBackScaleX); 98c0d661f1SArmin Le Grand const double fBottom(getCropBottom() * fBackScaleY); 99c0d661f1SArmin Le Grand 100*a6c67450Smseidel // calculate new unit range for comparisons; the original range is the unit range 101c0d661f1SArmin Le Grand const basegfx::B2DRange aUnitRange(0.0, 0.0, 1.0, 1.0); 102c0d661f1SArmin Le Grand const basegfx::B2DRange aNewRange( 103c0d661f1SArmin Le Grand -fLeft, 104c0d661f1SArmin Le Grand -fTop, 105c0d661f1SArmin Le Grand 1.0 + fRight, 106c0d661f1SArmin Le Grand 1.0 + fBottom); 107c0d661f1SArmin Le Grand 108c0d661f1SArmin Le Grand // if we have no overlap the crop has removed everything, so we do only 109c0d661f1SArmin Le Grand // have to create content if this is not the case 110c0d661f1SArmin Le Grand if(aNewRange.overlaps(aUnitRange)) 111ddde725dSArmin Le Grand { 112c0d661f1SArmin Le Grand // create new transform; first take out old transform to get 113c0d661f1SArmin Le Grand // to unit coordinates by inverting. Inverting should be flawless 114*a6c67450Smseidel // since we already checked that object size is not zero in X or Y 115c0d661f1SArmin Le Grand basegfx::B2DHomMatrix aNewTransform(getTransformation()); 116c0d661f1SArmin Le Grand 117c0d661f1SArmin Le Grand aNewTransform.invert(); 118c0d661f1SArmin Le Grand 119c0d661f1SArmin Le Grand // apply crop enlargement in unit coordinates 120c0d661f1SArmin Le Grand aNewTransform = basegfx::tools::createScaleTranslateB2DHomMatrix( 121c0d661f1SArmin Le Grand aNewRange.getRange(), 122c0d661f1SArmin Le Grand aNewRange.getMinimum()) * aNewTransform; 123c0d661f1SArmin Le Grand 124c0d661f1SArmin Le Grand // apply original transformation. Since we have manipulated the crop 125c0d661f1SArmin Le Grand // in unit coordinates we do not need to care about mirroring or 126c0d661f1SArmin Le Grand // a corrected point for eventual shear or rotation, this all comes for 127c0d661f1SArmin Le Grand // free 128c0d661f1SArmin Le Grand aNewTransform = getTransformation() * aNewTransform; 129c0d661f1SArmin Le Grand 130c0d661f1SArmin Le Grand // prepare TransformPrimitive2D with xPrimitive 131c0d661f1SArmin Le Grand const Primitive2DReference xTransformPrimitive( 132c0d661f1SArmin Le Grand new TransformPrimitive2D( 133*a6c67450Smseidel aNewTransform, 134c0d661f1SArmin Le Grand getChildren())); 135c0d661f1SArmin Le Grand 136c0d661f1SArmin Le Grand if(aUnitRange.isInside(aNewRange)) 137c0d661f1SArmin Le Grand { 138c0d661f1SArmin Le Grand // the new range is completely inside the old range (unit range), 139c0d661f1SArmin Le Grand // so no masking is needed 140c0d661f1SArmin Le Grand xRetval = Primitive2DSequence(&xTransformPrimitive, 1); 141c0d661f1SArmin Le Grand } 142c0d661f1SArmin Le Grand else 143c0d661f1SArmin Le Grand { 144c0d661f1SArmin Le Grand // mask with original object's bounds 145c0d661f1SArmin Le Grand basegfx::B2DPolyPolygon aMaskPolyPolygon(basegfx::tools::createUnitPolygon()); 146c0d661f1SArmin Le Grand aMaskPolyPolygon.transform(getTransformation()); 147c0d661f1SArmin Le Grand 148c0d661f1SArmin Le Grand // create maskPrimitive with aMaskPolyPolygon and aMaskContentVector 149c0d661f1SArmin Le Grand const Primitive2DReference xMask( 150c0d661f1SArmin Le Grand new MaskPrimitive2D( 151*a6c67450Smseidel aMaskPolyPolygon, 152c0d661f1SArmin Le Grand Primitive2DSequence(&xTransformPrimitive, 1))); 153c0d661f1SArmin Le Grand 154c0d661f1SArmin Le Grand xRetval = Primitive2DSequence(&xMask, 1); 155c0d661f1SArmin Le Grand } 156ddde725dSArmin Le Grand } 157ddde725dSArmin Le Grand } 158ddde725dSArmin Le Grand } 159ddde725dSArmin Le Grand 160ddde725dSArmin Le Grand return xRetval; 161ddde725dSArmin Le Grand } 162ddde725dSArmin Le Grand 163ddde725dSArmin Le Grand // provide unique ID 164ddde725dSArmin Le Grand ImplPrimitrive2DIDBlock(CropPrimitive2D, PRIMITIVE2D_ID_CROPPRIMITIVE2D) 165ddde725dSArmin Le Grand 166ddde725dSArmin Le Grand } // end of namespace primitive2d 167ddde725dSArmin Le Grand } // end of namespace drawinglayer 168ddde725dSArmin Le Grand 169*a6c67450Smseidel /* vim: set noet sw=4 ts=4: */ 170