ImageFilterBorder.java revision a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1
1a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard/* 2a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * Copyright (C) 2012 The Android Open Source Project 3a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * 4a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * Licensed under the Apache License, Version 2.0 (the "License"); 5a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * you may not use this file except in compliance with the License. 6a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * You may obtain a copy of the License at 7a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * 8a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * http://www.apache.org/licenses/LICENSE-2.0 9a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * 10a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * Unless required by applicable law or agreed to in writing, software 11a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * distributed under the License is distributed on an "AS IS" BASIS, 12a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * See the License for the specific language governing permissions and 14a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * limitations under the License. 15a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard */ 160d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard 170d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroardpackage com.android.gallery3d.filtershow.filters; 180d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard 190d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroardimport android.graphics.Bitmap; 200d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroardimport android.graphics.Canvas; 210d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroardimport android.graphics.Rect; 220d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroardimport android.graphics.drawable.Drawable; 230d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard 240d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroardpublic class ImageFilterBorder extends ImageFilter { 250d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard Drawable mNinePatch = null; 260d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard 27bf93da72576b28f4e9dfb27f8f3fef702c8ae82dnicolasroard @Override 28bf93da72576b28f4e9dfb27f8f3fef702c8ae82dnicolasroard public ImageFilter clone() throws CloneNotSupportedException { 29bf93da72576b28f4e9dfb27f8f3fef702c8ae82dnicolasroard ImageFilterBorder filter = (ImageFilterBorder) super.clone(); 30bf93da72576b28f4e9dfb27f8f3fef702c8ae82dnicolasroard filter.setDrawable(mNinePatch); 31bf93da72576b28f4e9dfb27f8f3fef702c8ae82dnicolasroard return filter; 320d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard } 330d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard 34bf93da72576b28f4e9dfb27f8f3fef702c8ae82dnicolasroard public ImageFilterBorder(Drawable ninePatch) { 35a19830b4fd9050b48386cd904d99cfd2566cc515John Hoford setFilterType(TYPE_BORDER); 36bf93da72576b28f4e9dfb27f8f3fef702c8ae82dnicolasroard mName = "Border"; 37bf93da72576b28f4e9dfb27f8f3fef702c8ae82dnicolasroard mNinePatch = ninePatch; 380d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard } 390d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard 4081eb9976f967d9b3faa1749a8ab29d1743cf347dnicolasroard @Override 4155550694a3f40fbf5dfc95c35a8e253aedab931enicolasroard public boolean isNil() { 4255550694a3f40fbf5dfc95c35a8e253aedab931enicolasroard if (mNinePatch == null) { 4355550694a3f40fbf5dfc95c35a8e253aedab931enicolasroard return true; 4455550694a3f40fbf5dfc95c35a8e253aedab931enicolasroard } 4555550694a3f40fbf5dfc95c35a8e253aedab931enicolasroard return false; 4655550694a3f40fbf5dfc95c35a8e253aedab931enicolasroard } 4755550694a3f40fbf5dfc95c35a8e253aedab931enicolasroard 4855550694a3f40fbf5dfc95c35a8e253aedab931enicolasroard @Override 490d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard public boolean same(ImageFilter filter) { 500d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard boolean isBorderFilter = super.same(filter); 510d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard if (!isBorderFilter) { 520d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard return false; 530d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard } 540d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard ImageFilterBorder borderFilter = (ImageFilterBorder) filter; 550d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard if (mNinePatch != borderFilter.mNinePatch) { 560d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard return false; 570d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard } 580d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard return true; 590d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard } 600d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard 610d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard public void setDrawable(Drawable ninePatch) { 620d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard // TODO: for now we only use nine patch 630d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard mNinePatch = ninePatch; 640d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard } 650d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard 6681eb9976f967d9b3faa1749a8ab29d1743cf347dnicolasroard @Override 6781eb9976f967d9b3faa1749a8ab29d1743cf347dnicolasroard public Bitmap apply(Bitmap bitmap, float scaleFactor, boolean highQuality) { 680d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard if (mNinePatch == null) { 6981eb9976f967d9b3faa1749a8ab29d1743cf347dnicolasroard return bitmap; 700d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard } 710d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard 720d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard int w = bitmap.getWidth(); 730d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard int h = bitmap.getHeight(); 740d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard 7508458dc637d92ee5f12e34d49c34cc10f4e19c7dnicolasroard float scale = scaleFactor * 2.0f; 7608458dc637d92ee5f12e34d49c34cc10f4e19c7dnicolasroard Rect bounds = new Rect(0, 0, (int) (w / scale), (int) (h / scale)); 770d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard Canvas canvas = new Canvas(bitmap); 7808458dc637d92ee5f12e34d49c34cc10f4e19c7dnicolasroard canvas.scale(scale, scale); 790d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard mNinePatch.setBounds(bounds); 800d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard mNinePatch.draw(canvas); 8181eb9976f967d9b3faa1749a8ab29d1743cf347dnicolasroard return bitmap; 820d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard } 830d7cdf8e763fb65c32bfad65245b3753deb75737nicolasroard} 84