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Android example source code file (AvoidXfermode.java)
The AvoidXfermode.java Android example source code/* * Copyright (C) 2008 The Android Open Source Project * * Licensed 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. */ package android.graphics; /** * AvoidXfermode xfermode will draw the src everywhere except on top of the * opColor or, depending on the Mode, draw only on top of the opColor. */ public class AvoidXfermode extends Xfermode { // these need to match the enum in SkAvoidXfermode.h on the native side public enum Mode { AVOID (0), //!< draw everywhere except on the opColor TARGET (1); //!< draw only on top of the opColor Mode(int nativeInt) { this.nativeInt = nativeInt; } final int nativeInt; } /** This xfermode draws, or doesn't draw, based on the destination's * distance from an op-color. * * There are two modes, and each mode interprets a tolerance value. * * Avoid: In this mode, drawing is allowed only on destination pixels that * are different from the op-color. * Tolerance near 0: avoid any colors even remotely similar to the op-color * Tolerance near 255: avoid only colors nearly identical to the op-color * Target: In this mode, drawing only occurs on destination pixels that * are similar to the op-color * Tolerance near 0: draw only on colors that are nearly identical to the op-color * Tolerance near 255: draw on any colors even remotely similar to the op-color */ public AvoidXfermode(int opColor, int tolerance, Mode mode) { if (tolerance < 0 || tolerance > 255) { throw new IllegalArgumentException("tolerance must be 0..255"); } native_instance = nativeCreate(opColor, tolerance, mode.nativeInt); } private static native int nativeCreate(int opColor, int tolerance, int nativeMode); } Other Android examples (source code examples)Here is a short list of links related to this Android AvoidXfermode.java source code file: |
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