1*b1cdbd2cSJim Jagielski/************************************************************** 2*b1cdbd2cSJim Jagielski * 3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one 4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file 5*b1cdbd2cSJim Jagielski * distributed with this work for additional information 6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file 7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the 8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance 9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at 10*b1cdbd2cSJim Jagielski * 11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0 12*b1cdbd2cSJim Jagielski * 13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing, 14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an 15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the 17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations 18*b1cdbd2cSJim Jagielski * under the License. 19*b1cdbd2cSJim Jagielski * 20*b1cdbd2cSJim Jagielski *************************************************************/ 21*b1cdbd2cSJim Jagielski 22*b1cdbd2cSJim Jagielski 23*b1cdbd2cSJim Jagielski#ifndef __com_sun_star_rendering_CompositeOperation_idl__ 24*b1cdbd2cSJim Jagielski#define __com_sun_star_rendering_CompositeOperation_idl__ 25*b1cdbd2cSJim Jagielski 26*b1cdbd2cSJim Jagielskimodule com { module sun { module star { module rendering { 27*b1cdbd2cSJim Jagielski 28*b1cdbd2cSJim Jagielski/** These constants determine how the primitive color is combined with 29*b1cdbd2cSJim Jagielski the background.<p> 30*b1cdbd2cSJim Jagielski 31*b1cdbd2cSJim Jagielski When performing this calculations, it is assumed that all color 32*b1cdbd2cSJim Jagielski values are premultiplied with the corresponding alpha values (if 33*b1cdbd2cSJim Jagielski no alpha is specified, 1.0 is assumed). Then, the following 34*b1cdbd2cSJim Jagielski general compositing operation is performed: 35*b1cdbd2cSJim Jagielski <p> 36*b1cdbd2cSJim Jagielski C = Ca * Fa + Cb * Fb 37*b1cdbd2cSJim Jagielski <p> 38*b1cdbd2cSJim Jagielski where C is the result color, Ca and Cb are the input colors, 39*b1cdbd2cSJim Jagielski premultiplied with alpha, and Fa and Fb are described for the 40*b1cdbd2cSJim Jagielski different composite modes (wherein Aa and Ab denote source and 41*b1cdbd2cSJim Jagielski destination alpha, respectively).<p> 42*b1cdbd2cSJim Jagielski 43*b1cdbd2cSJim Jagielski @since OpenOffice 2.0 44*b1cdbd2cSJim Jagielski */ 45*b1cdbd2cSJim Jagielskiconstants CompositeOperation 46*b1cdbd2cSJim Jagielski{ 47*b1cdbd2cSJim Jagielski /** Clear the destination.<p> 48*b1cdbd2cSJim Jagielski 49*b1cdbd2cSJim Jagielski Clear the destination area. The function values are: Fa = Fb = 50*b1cdbd2cSJim Jagielski 0.<p> 51*b1cdbd2cSJim Jagielski */ 52*b1cdbd2cSJim Jagielski const byte CLEAR = 0; 53*b1cdbd2cSJim Jagielski 54*b1cdbd2cSJim Jagielski /** Copy source as-is to the destination.<p> 55*b1cdbd2cSJim Jagielski 56*b1cdbd2cSJim Jagielski Copy source as-is to the destination. The function values are: 57*b1cdbd2cSJim Jagielski Fa = 1, Fb = 0.<p> 58*b1cdbd2cSJim Jagielski */ 59*b1cdbd2cSJim Jagielski const byte SOURCE = 1; 60*b1cdbd2cSJim Jagielski 61*b1cdbd2cSJim Jagielski /** Leave the destination as-is.<p> 62*b1cdbd2cSJim Jagielski 63*b1cdbd2cSJim Jagielski Leave the destination as-is. The function values are: Fa = 0, 64*b1cdbd2cSJim Jagielski Fb = 1.<p> 65*b1cdbd2cSJim Jagielski */ 66*b1cdbd2cSJim Jagielski const byte DESTINATION = 2; 67*b1cdbd2cSJim Jagielski 68*b1cdbd2cSJim Jagielski /** Copy the source over the destination.<p> 69*b1cdbd2cSJim Jagielski 70*b1cdbd2cSJim Jagielski Copy the source over the destination. The function values are: 71*b1cdbd2cSJim Jagielski Fa = 1, Fb = 1-Aa.<p> 72*b1cdbd2cSJim Jagielski */ 73*b1cdbd2cSJim Jagielski const byte OVER = 3; 74*b1cdbd2cSJim Jagielski 75*b1cdbd2cSJim Jagielski /** Copy the source under the destination.<p> 76*b1cdbd2cSJim Jagielski 77*b1cdbd2cSJim Jagielski Copy the source under the destination. The function values 78*b1cdbd2cSJim Jagielski are: Fa = 1-Ab, Fb = 1.<p> 79*b1cdbd2cSJim Jagielski */ 80*b1cdbd2cSJim Jagielski const byte UNDER = 4; 81*b1cdbd2cSJim Jagielski 82*b1cdbd2cSJim Jagielski /** Copy the source to the destination.<p> 83*b1cdbd2cSJim Jagielski 84*b1cdbd2cSJim Jagielski Copy the source to the destination, but limited to where the 85*b1cdbd2cSJim Jagielski destination is. The function values are: Fa = Ab, Fb = 0.<p> 86*b1cdbd2cSJim Jagielski */ 87*b1cdbd2cSJim Jagielski const byte INSIDE = 5; 88*b1cdbd2cSJim Jagielski 89*b1cdbd2cSJim Jagielski /** Leave the destination as is.<p> 90*b1cdbd2cSJim Jagielski 91*b1cdbd2cSJim Jagielski Leave the destination as is, but only where the source 92*b1cdbd2cSJim Jagielski was. The function values are: Fa = 0, Fb = Aa.<p> 93*b1cdbd2cSJim Jagielski */ 94*b1cdbd2cSJim Jagielski const byte INSIDE_REVERSE = 6; 95*b1cdbd2cSJim Jagielski 96*b1cdbd2cSJim Jagielski /** Copy the source to the destination<p> 97*b1cdbd2cSJim Jagielski 98*b1cdbd2cSJim Jagielski Copy the source to the destination, but limited to where the 99*b1cdbd2cSJim Jagielski destination is not. The function values are: Fa = 1-Ab, Fb = 100*b1cdbd2cSJim Jagielski 0.<p> 101*b1cdbd2cSJim Jagielski */ 102*b1cdbd2cSJim Jagielski const byte OUTSIDE = 7; 103*b1cdbd2cSJim Jagielski 104*b1cdbd2cSJim Jagielski /** Leave the destination as is.<p> 105*b1cdbd2cSJim Jagielski 106*b1cdbd2cSJim Jagielski Leave the destination as is, but only where the source has not 107*b1cdbd2cSJim Jagielski been. The function values are: Fa = 0, Fb = 1-Aa.<p> 108*b1cdbd2cSJim Jagielski */ 109*b1cdbd2cSJim Jagielski const byte OUTSIDE_REVERSE = 8; 110*b1cdbd2cSJim Jagielski 111*b1cdbd2cSJim Jagielski /** Copy the source over the destination<p> 112*b1cdbd2cSJim Jagielski 113*b1cdbd2cSJim Jagielski Copy the source over the destination, but only where the 114*b1cdbd2cSJim Jagielski destination is. Keep the destination. The function values are: 115*b1cdbd2cSJim Jagielski Fa = Ab, Fb = 1-Aa.<p> 116*b1cdbd2cSJim Jagielski */ 117*b1cdbd2cSJim Jagielski const byte ATOP = 9; 118*b1cdbd2cSJim Jagielski 119*b1cdbd2cSJim Jagielski /** Copy the destination over the source.<p> 120*b1cdbd2cSJim Jagielski 121*b1cdbd2cSJim Jagielski Copy the destination over the source, but only where the 122*b1cdbd2cSJim Jagielski source is. Keep the source. The function values are: Fa = 123*b1cdbd2cSJim Jagielski 1-Ab, Fb = Aa.<p> 124*b1cdbd2cSJim Jagielski */ 125*b1cdbd2cSJim Jagielski const byte ATOP_REVERSE = 10; 126*b1cdbd2cSJim Jagielski 127*b1cdbd2cSJim Jagielski /** Combine source and destination by exclusive or.<p> 128*b1cdbd2cSJim Jagielski 129*b1cdbd2cSJim Jagielski Take only the parts where either source or destination, but 130*b1cdbd2cSJim Jagielski not both visible. The function values are: Fa = 1-Ab, Fb = 131*b1cdbd2cSJim Jagielski 1-Aa.<p> 132*b1cdbd2cSJim Jagielski */ 133*b1cdbd2cSJim Jagielski const byte XOR = 11; 134*b1cdbd2cSJim Jagielski 135*b1cdbd2cSJim Jagielski /** Add source and destination values.<p> 136*b1cdbd2cSJim Jagielski 137*b1cdbd2cSJim Jagielski Simply add contributions of both source and destination. The 138*b1cdbd2cSJim Jagielski resulting color values are limited to the permissible color 139*b1cdbd2cSJim Jagielski range, and clipped to the maximal value, if exceeded. The 140*b1cdbd2cSJim Jagielski function values are: Fa = 1, Fb = 1.<p> 141*b1cdbd2cSJim Jagielski */ 142*b1cdbd2cSJim Jagielski const byte ADD = 12; 143*b1cdbd2cSJim Jagielski 144*b1cdbd2cSJim Jagielski /** Saturate source and destination.<p> 145*b1cdbd2cSJim Jagielski 146*b1cdbd2cSJim Jagielski Saturate destination with source values. The function values 147*b1cdbd2cSJim Jagielski are: Fa = min(1,(1-Ab)/Aa), Fb = 1<p> 148*b1cdbd2cSJim Jagielski */ 149*b1cdbd2cSJim Jagielski const byte SATURATE = 13; 150*b1cdbd2cSJim Jagielski}; 151*b1cdbd2cSJim Jagielski 152*b1cdbd2cSJim Jagielski}; }; }; }; 153*b1cdbd2cSJim Jagielski 154*b1cdbd2cSJim Jagielski#endif 155