1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.gallery3d.filtershow.imageshow; 18 19 import android.content.Context; 20 import android.graphics.Canvas; 21 import android.graphics.Matrix; 22 import android.util.AttributeSet; 23 import android.view.MotionEvent; 24 25 import com.android.gallery3d.filtershow.editors.EditorVignette; 26 import com.android.gallery3d.filtershow.filters.FilterVignetteRepresentation; 27 28 public class ImageVignette extends ImageShow { 29 private static final String LOGTAG = "ImageVignette"; 30 31 private FilterVignetteRepresentation mVignetteRep; 32 private EditorVignette mEditorVignette; 33 private OvalSpaceAdapter mScreenOval = new OvalSpaceAdapter(); 34 private int mActiveHandle = -1; 35 36 EclipseControl mElipse; 37 38 public ImageVignette(Context context) { 39 super(context); 40 mElipse = new EclipseControl(context); 41 } 42 43 public ImageVignette(Context context, AttributeSet attrs) { 44 super(context, attrs); 45 mElipse = new EclipseControl(context); 46 } 47 48 static class OvalSpaceAdapter implements Oval { 49 private Oval mOval; 50 Matrix mToScr; 51 Matrix mToImage; 52 int mImgWidth; 53 int mImgHeight; 54 float[] mTmp = new float[2]; 55 float mTmpRadiusX; 56 float mTmpRadiusY; 57 58 public void setImageOval(Oval oval) { 59 mOval = oval; 60 } 61 62 public void setTransform(Matrix toScr, Matrix toImage, int imgWidth, int imgHeight) { 63 mToScr = toScr; 64 mToImage = toImage; 65 mImgWidth = imgWidth; 66 mImgHeight = imgHeight; 67 mTmpRadiusX = getRadiusX(); 68 mTmpRadiusY = getRadiusY(); 69 } 70 71 @Override 72 public void setCenter(float x, float y) { 73 mTmp[0] = x; 74 mTmp[1] = y; 75 mToImage.mapPoints(mTmp); 76 mOval.setCenter(mTmp[0] / mImgWidth, mTmp[1] / mImgHeight); 77 } 78 79 @Override 80 public void setRadius(float w, float h) { 81 mTmp[0] = mTmpRadiusX = w; 82 mTmp[1] = mTmpRadiusY = h; 83 mToImage.mapVectors(mTmp); 84 mOval.setRadius(mTmp[0] / mImgWidth, mTmp[1] / mImgHeight); 85 } 86 87 @Override 88 public float getCenterX() { 89 mTmp[0] = mOval.getCenterX() * mImgWidth; 90 mTmp[1] = mOval.getCenterY() * mImgHeight; 91 mToScr.mapPoints(mTmp); 92 93 return mTmp[0]; 94 } 95 96 @Override 97 public float getCenterY() { 98 mTmp[0] = mOval.getCenterX() * mImgWidth; 99 mTmp[1] = mOval.getCenterY() * mImgHeight; 100 mToScr.mapPoints(mTmp); 101 return mTmp[1]; 102 } 103 104 @Override 105 public float getRadiusX() { 106 mTmp[0] = mOval.getRadiusX() * mImgWidth; 107 mTmp[1] = mOval.getRadiusY() * mImgHeight; 108 mToScr.mapVectors(mTmp); 109 return Math.abs(mTmp[0]); 110 } 111 112 @Override 113 public float getRadiusY() { 114 mTmp[0] = mOval.getRadiusX() * mImgWidth; 115 mTmp[1] = mOval.getRadiusY() * mImgHeight; 116 mToScr.mapVectors(mTmp); 117 return Math.abs(mTmp[1]); 118 } 119 120 @Override 121 public void setRadiusY(float y) { 122 mTmp[0] = mTmpRadiusX; 123 mTmp[1] = mTmpRadiusY = y; 124 mToImage.mapVectors(mTmp); 125 mOval.setRadiusX(mTmp[0] / mImgWidth); 126 mOval.setRadiusY(mTmp[1] / mImgHeight); 127 } 128 129 @Override 130 public void setRadiusX(float x) { 131 mTmp[0] = mTmpRadiusX = x; 132 mTmp[1] = mTmpRadiusY; 133 mToImage.mapVectors(mTmp); 134 mOval.setRadiusX(mTmp[0] / mImgWidth); 135 mOval.setRadiusY(mTmp[1] / mImgHeight); 136 } 137 } 138 139 @Override 140 public boolean onTouchEvent(MotionEvent event) { 141 int w = MasterImage.getImage().getOriginalBounds().width(); 142 int h = MasterImage.getImage().getOriginalBounds().height(); 143 int mask = event.getActionMasked(); 144 if (mActiveHandle == -1) { 145 if (MotionEvent.ACTION_DOWN != mask) { 146 return super.onTouchEvent(event); 147 } 148 if (event.getPointerCount() == 1) { 149 mActiveHandle = mElipse.getCloseHandle(event.getX(), event.getY()); 150 } 151 if (mActiveHandle == -1) { 152 return super.onTouchEvent(event); 153 } 154 } else { 155 switch (mask) { 156 case MotionEvent.ACTION_UP: 157 mActiveHandle = -1; 158 break; 159 case MotionEvent.ACTION_DOWN: 160 break; 161 } 162 } 163 float x = event.getX(); 164 float y = event.getY(); 165 166 mElipse.setScrImageInfo(new Matrix(), 167 MasterImage.getImage().getOriginalBounds()); 168 169 boolean didComputeEllipses = false; 170 switch (mask) { 171 case (MotionEvent.ACTION_DOWN): 172 mElipse.actionDown(x, y, mScreenOval); 173 break; 174 case (MotionEvent.ACTION_UP): 175 case (MotionEvent.ACTION_MOVE): 176 177 mElipse.actionMove(mActiveHandle, x, y, mScreenOval); 178 setRepresentation(mVignetteRep); 179 didComputeEllipses = true; 180 break; 181 } 182 if (!didComputeEllipses) { 183 computeEllipses(); 184 } 185 invalidate(); 186 return true; 187 } 188 189 public void setRepresentation(FilterVignetteRepresentation vignetteRep) { 190 mVignetteRep = vignetteRep; 191 mScreenOval.setImageOval(mVignetteRep); 192 computeEllipses(); 193 } 194 195 public void computeEllipses() { 196 if (mVignetteRep == null) { 197 return; 198 } 199 float w = MasterImage.getImage().getOriginalBounds().width(); 200 float h = MasterImage.getImage().getOriginalBounds().height(); 201 Matrix toImg = getScreenToImageMatrix(false); 202 Matrix toScr = new Matrix(); 203 toImg.invert(toScr); 204 mScreenOval.setTransform(toScr, toImg, (int) w, (int) h); 205 206 mElipse.setCenter(mScreenOval.getCenterX(), mScreenOval.getCenterY()); 207 mElipse.setRadius(mScreenOval.getRadiusX(), mScreenOval.getRadiusY()); 208 209 mEditorVignette.commitLocalRepresentation(); 210 } 211 212 public void setEditor(EditorVignette editorVignette) { 213 mEditorVignette = editorVignette; 214 } 215 216 @Override 217 public void onSizeChanged(int w, int h, int oldw, int oldh) { 218 super.onSizeChanged(w, h, oldw, oldh); 219 computeEllipses(); 220 } 221 222 @Override 223 public void onDraw(Canvas canvas) { 224 super.onDraw(canvas); 225 if (mVignetteRep == null) { 226 return; 227 } 228 float w = MasterImage.getImage().getOriginalBounds().width(); 229 float h = MasterImage.getImage().getOriginalBounds().height(); 230 Matrix toImg = getScreenToImageMatrix(false); 231 Matrix toScr = new Matrix(); 232 toImg.invert(toScr); 233 mScreenOval.setTransform(toScr, toImg, (int) w, (int) h); 234 mElipse.setCenter(mScreenOval.getCenterX(), mScreenOval.getCenterY()); 235 mElipse.setRadius(mScreenOval.getRadiusX(), mScreenOval.getRadiusY()); 236 237 mElipse.draw(canvas); 238 } 239 240 } 241
