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| * |
| * 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 |
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| * 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/unifiedtransparenceprimitive2d.hxx> |
| #include <basegfx/polygon/b2dpolygon.hxx> |
| #include <basegfx/polygon/b2dpolygontools.hxx> |
| #include <basegfx/color/bcolor.hxx> |
| #include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx> |
| #include <drawinglayer/primitive2d/transparenceprimitive2d.hxx> |
| #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx> |
| #include <drawinglayer/primitive2d/polygonprimitive2d.hxx> |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| using namespace com::sun::star; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| namespace drawinglayer |
| { |
| namespace primitive2d |
| { |
| UnifiedTransparencePrimitive2D::UnifiedTransparencePrimitive2D( |
| const Primitive2DSequence& rChildren, |
| double fTransparence) |
| : GroupPrimitive2D(rChildren), |
| mfTransparence(fTransparence) |
| { |
| } |
| |
| bool UnifiedTransparencePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const |
| { |
| if(GroupPrimitive2D::operator==(rPrimitive)) |
| { |
| const UnifiedTransparencePrimitive2D& rCompare = (UnifiedTransparencePrimitive2D&)rPrimitive; |
| |
| return (getTransparence() == rCompare.getTransparence()); |
| } |
| |
| return false; |
| } |
| |
| basegfx::B2DRange UnifiedTransparencePrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const |
| { |
| // do not use the fallback to decomposition here since for a correct BoundRect we also |
| // need invisible (1.0 == getTransparence()) geometry; these would be deleted in the decomposition |
| return getB2DRangeFromPrimitive2DSequence(getChildren(), rViewInformation); |
| } |
| |
| Primitive2DSequence UnifiedTransparencePrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const |
| { |
| if(0.0 == getTransparence()) |
| { |
| // no transparence used, so just use the content |
| return getChildren(); |
| } |
| else if(getTransparence() > 0.0 && getTransparence() < 1.0) |
| { |
| // The idea is to create a TransparencePrimitive2D with transparent content using a fill color |
| // corresponding to the transparence value. Problem is that in most systems, the right |
| // and bottom pixel array is not filled when filling polygons, thus this would not |
| // always produce a complete transparent bitmap. There are some solutions: |
| // |
| // - Grow the used polygon range by one discrete unit in X and Y. This |
| // will make the decomposition view-dependent. |
| // |
| // - For all filled polygon renderings, dra wthe polygon outline extra. This |
| // would lead to unwanted side effects when using concatenated polygons. |
| // |
| // - At this decomposition, add a filled polygon and a hairline polygon. This |
| // solution stays view-independent. |
| // |
| // I will take the last one here. The small overhead of two primitives will only be |
| // used when UnifiedTransparencePrimitive2D is not handled directly. |
| const basegfx::B2DRange aPolygonRange(getB2DRangeFromPrimitive2DSequence(getChildren(), rViewInformation)); |
| const basegfx::B2DPolygon aPolygon(basegfx::tools::createPolygonFromRect(aPolygonRange)); |
| const basegfx::BColor aGray(getTransparence(), getTransparence(), getTransparence()); |
| Primitive2DSequence aTransparenceContent(2); |
| |
| aTransparenceContent[0] = Primitive2DReference(new PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(aPolygon), aGray)); |
| aTransparenceContent[1] = Primitive2DReference(new PolygonHairlinePrimitive2D(aPolygon, aGray)); |
| |
| // create sub-transparence group with a gray-colored rectangular fill polygon |
| const Primitive2DReference xRefB(new TransparencePrimitive2D(getChildren(), aTransparenceContent)); |
| return Primitive2DSequence(&xRefB, 1L); |
| } |
| else |
| { |
| // completely transparent or invalid definition, add nothing |
| return Primitive2DSequence(); |
| } |
| } |
| |
| // provide unique ID |
| ImplPrimitrive2DIDBlock(UnifiedTransparencePrimitive2D, PRIMITIVE2D_ID_UNIFIEDTRANSPARENCEPRIMITIVE2D) |
| |
| } // end of namespace primitive2d |
| } // end of namespace drawinglayer |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // eof |
