1f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin/* 2f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * Copyright (C) 2010 The Android Open Source Project 3f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * 4f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * Licensed under the Apache License, Version 2.0 (the "License"); 5f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * you may not use this file except in compliance with the License. 6f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * You may obtain a copy of the License at 7f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * 8f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * http://www.apache.org/licenses/LICENSE-2.0 9f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * 10f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * Unless required by applicable law or agreed to in writing, software 11f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * distributed under the License is distributed on an "AS IS" BASIS, 12f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * See the License for the specific language governing permissions and 14f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin * limitations under the License. 15f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin */ 16f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 17f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linpackage com.android.gallery3d.ui; 18f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 19f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linimport android.graphics.Rect; 20f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linimport android.view.View.MeasureSpec; 21f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 22f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linclass MeasureHelper { 23f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 24f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private static MeasureHelper sInstance = new MeasureHelper(null); 25f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 26f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private GLView mComponent; 27f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private int mPreferredWidth; 28f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private int mPreferredHeight; 29f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 30f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private MeasureHelper(GLView component) { 31f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mComponent = component; 32f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 33f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 34f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin public static MeasureHelper getInstance(GLView component) { 35f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin sInstance.mComponent = component; 36f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin return sInstance; 37f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 38f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 39f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin public MeasureHelper setPreferredContentSize(int width, int height) { 40f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mPreferredWidth = width; 41f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mPreferredHeight = height; 42f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin return this; 43f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 44f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 45f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin public void measure(int widthSpec, int heightSpec) { 46f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin Rect p = mComponent.getPaddings(); 47f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin setMeasuredSize( 48f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin getLength(widthSpec, mPreferredWidth + p.left + p.right), 49f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin getLength(heightSpec, mPreferredHeight + p.top + p.bottom)); 50f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 51f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 52f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private static int getLength(int measureSpec, int prefered) { 53f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin int specLength = MeasureSpec.getSize(measureSpec); 54f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin switch(MeasureSpec.getMode(measureSpec)) { 55f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin case MeasureSpec.EXACTLY: return specLength; 56f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin case MeasureSpec.AT_MOST: return Math.min(prefered, specLength); 57f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin default: return prefered; 58f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 59f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 60f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 61f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin protected void setMeasuredSize(int width, int height) { 62f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mComponent.setMeasuredSize(width, height); 63f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 64f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 65f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin} 66