/*
* 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.
*/
@Deprecated
public class AvoidXfermode extends Xfermode {
// these need to match the enum in AvoidXfermode.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 long nativeCreate(int opColor, int tolerance,
int nativeMode);
}