1*4bfbcde8SAndrew Rist /************************************************************** 2*4bfbcde8SAndrew Rist * 3*4bfbcde8SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*4bfbcde8SAndrew Rist * or more contributor license agreements. See the NOTICE file 5*4bfbcde8SAndrew Rist * distributed with this work for additional information 6*4bfbcde8SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*4bfbcde8SAndrew Rist * to you under the Apache License, Version 2.0 (the 8*4bfbcde8SAndrew Rist * "License"); you may not use this file except in compliance 9*4bfbcde8SAndrew Rist * with the License. You may obtain a copy of the License at 10*4bfbcde8SAndrew Rist * 11*4bfbcde8SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*4bfbcde8SAndrew Rist * 13*4bfbcde8SAndrew Rist * Unless required by applicable law or agreed to in writing, 14*4bfbcde8SAndrew Rist * software distributed under the License is distributed on an 15*4bfbcde8SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*4bfbcde8SAndrew Rist * KIND, either express or implied. See the License for the 17*4bfbcde8SAndrew Rist * specific language governing permissions and limitations 18*4bfbcde8SAndrew Rist * under the License. 19*4bfbcde8SAndrew Rist * 20*4bfbcde8SAndrew Rist *************************************************************/ 21cdf0e10cSrcweir 22cdf0e10cSrcweir #ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_TRANSPARENCEPRIMITIVE2D_HXX 23cdf0e10cSrcweir #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_TRANSPARENCEPRIMITIVE2D_HXX 24cdf0e10cSrcweir 25090f0eb8SEike Rathke #include <drawinglayer/drawinglayerdllapi.h> 26cdf0e10cSrcweir #include <drawinglayer/primitive2d/groupprimitive2d.hxx> 27cdf0e10cSrcweir 28cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 29cdf0e10cSrcweir 30cdf0e10cSrcweir namespace drawinglayer 31cdf0e10cSrcweir { 32cdf0e10cSrcweir namespace primitive2d 33cdf0e10cSrcweir { 34cdf0e10cSrcweir /** TransparencePrimitive2D class 35cdf0e10cSrcweir 36cdf0e10cSrcweir This is the basic primitive for applying freely defined transparence 37cdf0e10cSrcweir to freely defined content. The basic idea is to associate a content 38cdf0e10cSrcweir which is defined as a sequence of primitives and hold as child content 39cdf0e10cSrcweir in the GroupPrimitive2D with a transparence channel also defined as a sequence 40cdf0e10cSrcweir of primitives and hold in the transparence member. 41cdf0e10cSrcweir 42cdf0e10cSrcweir The basic definition is to use the transparence content as transparence-Mask by 43cdf0e10cSrcweir interpreting the transparence-content not as RGB, but as Luminance transparence mask 44cdf0e10cSrcweir using the common RGB_to_luminance definition as e.g. used by VCL. 45cdf0e10cSrcweir 46cdf0e10cSrcweir The defining geometry is the Range of the child primitive sequence, 47cdf0e10cSrcweir this means the renderers will/shall use this geometric information for 48cdf0e10cSrcweir rendering, not the transparent one. The transparent one should/will be clipped 49cdf0e10cSrcweir accordingly. 50cdf0e10cSrcweir */ 51090f0eb8SEike Rathke class DRAWINGLAYER_DLLPUBLIC TransparencePrimitive2D : public GroupPrimitive2D 52cdf0e10cSrcweir { 53cdf0e10cSrcweir private: 54cdf0e10cSrcweir /// The transparence-Mask who's RGB-Values are interpreted as Luminance 55cdf0e10cSrcweir Primitive2DSequence maTransparence; 56cdf0e10cSrcweir 57cdf0e10cSrcweir public: 58cdf0e10cSrcweir /** constructor 59cdf0e10cSrcweir 60cdf0e10cSrcweir @param rChildren 61cdf0e10cSrcweir The content which is defined to have a transparency. The 62cdf0e10cSrcweir range of this primitive is defined by this content 63cdf0e10cSrcweir 64cdf0e10cSrcweir @param rTransparence 65cdf0e10cSrcweir The definition of the Transparence-channel for this primitive. It 66cdf0e10cSrcweir will be interpreted as mask by interpreting as gray values 67cdf0e10cSrcweir using the common RGB_to_luminance definitions 68cdf0e10cSrcweir */ 69cdf0e10cSrcweir TransparencePrimitive2D( 70cdf0e10cSrcweir const Primitive2DSequence& rChildren, 71cdf0e10cSrcweir const Primitive2DSequence& rTransparence); 72cdf0e10cSrcweir 73cdf0e10cSrcweir /// data read access getTransparence() const74cdf0e10cSrcweir const Primitive2DSequence& getTransparence() const { return maTransparence; } 75cdf0e10cSrcweir 76cdf0e10cSrcweir /// compare operator 77cdf0e10cSrcweir virtual bool operator==(const BasePrimitive2D& rPrimitive) const; 78cdf0e10cSrcweir 79cdf0e10cSrcweir /// provide unique ID 80cdf0e10cSrcweir DeclPrimitrive2DIDBlock() 81cdf0e10cSrcweir }; 82cdf0e10cSrcweir } // end of namespace primitive2d 83cdf0e10cSrcweir } // end of namespace drawinglayer 84cdf0e10cSrcweir 85cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 86cdf0e10cSrcweir 87cdf0e10cSrcweir #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_TRANSPARENCEPRIMITIVE2D_HXX 88cdf0e10cSrcweir 89cdf0e10cSrcweir ////////////////////////////////////////////////////////////////////////////// 90cdf0e10cSrcweir // eof 91