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.content.Context; 20f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 212b3ee0ea07246b859a5b75d8a6102a7cce7ec838Owen Linimport com.android.gallery3d.R; 222b3ee0ea07246b859a5b75d8a6102a7cce7ec838Owen Lin 23f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Linpublic class ProgressSpinner { 24f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private static float ROTATE_SPEED_OUTER = 1080f / 3500f; 25f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private static float ROTATE_SPEED_INNER = -720f / 3500f; 26f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private final ResourceTexture mOuter; 27f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private final ResourceTexture mInner; 28f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private final int mWidth; 29f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private final int mHeight; 30f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 31f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private float mInnerDegree = 0f; 32f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private float mOuterDegree = 0f; 33f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin private long mAnimationTimestamp = -1; 34f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 35f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin public ProgressSpinner(Context context) { 36f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mOuter = new ResourceTexture(context, R.drawable.spinner_76_outer_holo); 37f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mInner = new ResourceTexture(context, R.drawable.spinner_76_inner_holo); 38f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 39f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mWidth = Math.max(mOuter.getWidth(), mInner.getWidth()); 40f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mHeight = Math.max(mOuter.getHeight(), mInner.getHeight()); 41f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 42f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 43f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin public int getWidth() { 44f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin return mWidth; 45f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 46f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 47f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin public int getHeight() { 48f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin return mHeight; 49f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 50f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 51f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin public void startAnimation() { 52f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mAnimationTimestamp = -1; 53f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mOuterDegree = 0; 54f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mInnerDegree = 0; 55f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 56f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 57f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin public void draw(GLCanvas canvas, int x, int y) { 587d19f7f4281f232b9dceee4a5df390c03e2bd16bChih-Chung Chang long now = AnimationTime.get(); 59f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin if (mAnimationTimestamp == -1) mAnimationTimestamp = now; 60f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mOuterDegree += (now - mAnimationTimestamp) * ROTATE_SPEED_OUTER; 61f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mInnerDegree += (now - mAnimationTimestamp) * ROTATE_SPEED_INNER; 62f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 63f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mAnimationTimestamp = now; 64f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 65f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin // just preventing overflow 66f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin if (mOuterDegree > 360) mOuterDegree -= 360f; 67f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin if (mInnerDegree < 0) mInnerDegree += 360f; 68f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 69f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin canvas.save(GLCanvas.SAVE_FLAG_MATRIX); 70f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin 71174cac8f92029fc2829c94f274e70793ae948931Chih-Chung Chang canvas.translate(x + mWidth / 2, y + mHeight / 2); 72f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin canvas.rotate(mInnerDegree, 0, 0, 1); 73f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mOuter.draw(canvas, -mOuter.getWidth() / 2, -mOuter.getHeight() / 2); 74f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin canvas.rotate(mOuterDegree - mInnerDegree, 0, 0, 1); 75f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin mInner.draw(canvas, -mInner.getWidth() / 2, -mInner.getHeight() / 2); 76f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin canvas.restore(); 77f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin } 78f9a0a4306d589b4a4e20554fed512a603426bfa1Owen Lin} 79