| /* |
| * Copyright (C) 2012 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 com.android.gallery3d.filtershow.filters; |
| |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Paint; |
| import android.graphics.Path; |
| import android.graphics.RectF; |
| |
| public class ImageFilterParametricBorder extends ImageFilter { |
| private FilterColorBorderRepresentation mParameters = null; |
| |
| public ImageFilterParametricBorder() { |
| mName = "Border"; |
| } |
| |
| public void useRepresentation(FilterRepresentation representation) { |
| FilterColorBorderRepresentation parameters = (FilterColorBorderRepresentation) representation; |
| mParameters = parameters; |
| } |
| |
| public FilterColorBorderRepresentation getParameters() { |
| return mParameters; |
| } |
| |
| private void applyHelper(Canvas canvas, int w, int h) { |
| if (getParameters() == null) { |
| return; |
| } |
| Path border = new Path(); |
| border.moveTo(0, 0); |
| float bs = getParameters().getBorderSize() / 100.0f * w; |
| float r = getParameters().getBorderRadius() / 100.0f * w; |
| border.lineTo(0, h); |
| border.lineTo(w, h); |
| border.lineTo(w, 0); |
| border.lineTo(0, 0); |
| border.addRoundRect(new RectF(bs, bs, w - bs, h - bs), |
| r, r, Path.Direction.CW); |
| |
| Paint paint = new Paint(); |
| paint.setAntiAlias(true); |
| paint.setColor(getParameters().getColor()); |
| canvas.drawPath(border, paint); |
| } |
| |
| @Override |
| public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) { |
| Canvas canvas = new Canvas(bitmap); |
| applyHelper(canvas, bitmap.getWidth(), bitmap.getHeight()); |
| return bitmap; |
| } |
| |
| } |