18872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb/* 28872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * Copyright (C) 2010 The Android Open Source Project 38872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * 48872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * Licensed under the Apache License, Version 2.0 (the "License"); 58872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * you may not use this file except in compliance with the License. 68872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * You may obtain a copy of the License at 78872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * 88872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * http://www.apache.org/licenses/LICENSE-2.0 98872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * 108872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * Unless required by applicable law or agreed to in writing, software 118872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * distributed under the License is distributed on an "AS IS" BASIS, 128872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * See the License for the specific language governing permissions and 148872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * limitations under the License. 158872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb */ 168872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 178872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbpackage com.android.camera.ui; 188872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 198872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbimport android.content.Context; 208872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbimport android.graphics.Matrix; 218872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbimport android.util.AttributeSet; 228872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbimport android.view.View; 238872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbimport android.view.ViewGroup; 248872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 258872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb// A RotateLayout is designed to display a single item and provides the 268872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb// capabilities to rotate the item. 278872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbpublic class RotateLayout extends ViewGroup implements Rotatable { 288872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb @SuppressWarnings("unused") 298872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb private static final String TAG = "RotateLayout"; 308872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb private int mOrientation; 318872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb private Matrix mMatrix = new Matrix(); 328872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb protected View mChild; 338872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 348872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb public RotateLayout(Context context, AttributeSet attrs) { 358872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb super(context, attrs); 368872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb // The transparent background here is a workaround of the render issue 378872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb // happened when the view is rotated as the device's orientation 388872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb // changed. The view looks fine in landscape. After rotation, the view 398872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb // is invisible. 408872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb setBackgroundResource(android.R.color.transparent); 418872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 428872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 438872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb @Override 448872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb protected void onFinishInflate() { 458872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb mChild = getChildAt(0); 46638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setPivotX(0); 47638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setPivotY(0); 488872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 498872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 508872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb @Override 518872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb protected void onLayout( 528872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb boolean change, int left, int top, int right, int bottom) { 538872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb int width = right - left; 548872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb int height = bottom - top; 558872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb switch (mOrientation) { 568872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb case 0: 578872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb case 180: 588872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb mChild.layout(0, 0, width, height); 598872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb break; 608872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb case 90: 618872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb case 270: 628872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb mChild.layout(0, 0, height, width); 638872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb break; 648872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 658872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 668872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 678872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb @Override 688872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb protected void onMeasure(int widthSpec, int heightSpec) { 698872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb int w = 0, h = 0; 708872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb switch(mOrientation) { 718872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb case 0: 728872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb case 180: 738872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb measureChild(mChild, widthSpec, heightSpec); 748872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb w = mChild.getMeasuredWidth(); 758872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb h = mChild.getMeasuredHeight(); 768872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb break; 778872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb case 90: 788872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb case 270: 798872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb measureChild(mChild, heightSpec, widthSpec); 808872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb w = mChild.getMeasuredHeight(); 818872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb h = mChild.getMeasuredWidth(); 828872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb break; 838872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 848872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb setMeasuredDimension(w, h); 858872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 86638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling switch (mOrientation) { 87638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling case 0: 88638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setTranslationX(0); 89638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setTranslationY(0); 90638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling break; 91638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling case 90: 92638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setTranslationX(0); 93638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setTranslationY(h); 94638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling break; 95638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling case 180: 96638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setTranslationX(w); 97638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setTranslationY(h); 98638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling break; 99638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling case 270: 100638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setTranslationX(w); 101638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setTranslationY(0); 102638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling break; 1038872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 104638e6f06c877d90b907f66ea9c22b3c6b73c7384Sascha Haeberling mChild.setRotation(-mOrientation); 1058872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 1068872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 1078872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb @Override 1088872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb public boolean shouldDelayChildPressedState() { 1098872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb return false; 1108872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 1118872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 1128872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb // Rotate the view counter-clockwise 1138872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb @Override 1148872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb public void setOrientation(int orientation, boolean animation) { 1158872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb orientation = orientation % 360; 1168872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb if (mOrientation == orientation) return; 1178872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb mOrientation = orientation; 1188872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb requestLayout(); 1198872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 1208872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 1218872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb public int getOrientation() { 1228872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb return mOrientation; 1238872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 1248872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb} 125