diff options
Diffstat (limited to 'src/com/android/gallery3d/filtershow/imageshow/ImageGrad.java')
| -rw-r--r-- | src/com/android/gallery3d/filtershow/imageshow/ImageGrad.java | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/filtershow/imageshow/ImageGrad.java b/src/com/android/gallery3d/filtershow/imageshow/ImageGrad.java new file mode 100644 index 000000000..b55cc2bc4 --- /dev/null +++ b/src/com/android/gallery3d/filtershow/imageshow/ImageGrad.java @@ -0,0 +1,215 @@ +package com.android.gallery3d.filtershow.imageshow; +/* + * Copyright (C) 2013 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +import android.content.Context; +import android.content.res.Resources; +import android.graphics.Canvas; +import android.graphics.Matrix; +import android.util.AttributeSet; +import android.view.MotionEvent; + +import com.android.gallery3d.R; +import com.android.gallery3d.filtershow.editors.EditorGrad; +import com.android.gallery3d.filtershow.filters.FilterGradRepresentation; + +public class ImageGrad extends ImageShow { + private static final String LOGTAG = "ImageGrad"; + private FilterGradRepresentation mGradRep; + private EditorGrad mEditorGrad; + private float mMinTouchDist; + private int mActiveHandle = -1; + private GradControl mEllipse; + + Matrix mToScr = new Matrix(); + float[] mPointsX = new float[FilterGradRepresentation.MAX_POINTS]; + float[] mPointsY = new float[FilterGradRepresentation.MAX_POINTS]; + + public ImageGrad(Context context) { + super(context); + Resources res = context.getResources(); + mMinTouchDist = res.getDimensionPixelSize(R.dimen.gradcontrol_min_touch_dist); + mEllipse = new GradControl(context); + mEllipse.setShowReshapeHandles(false); + } + + public ImageGrad(Context context, AttributeSet attrs) { + super(context, attrs); + Resources res = context.getResources(); + mMinTouchDist = res.getDimensionPixelSize(R.dimen.gradcontrol_min_touch_dist); + mEllipse = new GradControl(context); + mEllipse.setShowReshapeHandles(false); + } + + @Override + public boolean onTouchEvent(MotionEvent event) { + int mask = event.getActionMasked(); + + if (mActiveHandle == -1) { + if (MotionEvent.ACTION_DOWN != mask) { + return super.onTouchEvent(event); + } + if (event.getPointerCount() == 1) { + mActiveHandle = mEllipse.getCloseHandle(event.getX(), event.getY()); + if (mActiveHandle == -1) { + float x = event.getX(); + float y = event.getY(); + float min_d = Float.MAX_VALUE; + int pos = -1; + for (int i = 0; i < mPointsX.length; i++) { + if (mPointsX[i] == -1) { + continue; + } + float d = (float) Math.hypot(x - mPointsX[i], y - mPointsY[i]); + if ( min_d > d) { + min_d = d; + pos = i; + } + } + if (min_d > mMinTouchDist){ + pos = -1; + } + + if (pos != -1) { + mGradRep.setSelectedPoint(pos); + resetImageCaches(this); + mEditorGrad.updateSeekBar(mGradRep); + mEditorGrad.commitLocalRepresentation(); + invalidate(); + } + } + } + if (mActiveHandle == -1) { + return super.onTouchEvent(event); + } + } else { + switch (mask) { + case MotionEvent.ACTION_UP: { + + mActiveHandle = -1; + break; + } + case MotionEvent.ACTION_DOWN: { + break; + } + } + } + float x = event.getX(); + float y = event.getY(); + + mEllipse.setScrImageInfo(getScreenToImageMatrix(true), + MasterImage.getImage().getOriginalBounds()); + + switch (mask) { + case (MotionEvent.ACTION_DOWN): { + mEllipse.actionDown(x, y, mGradRep); + break; + } + case (MotionEvent.ACTION_UP): + case (MotionEvent.ACTION_MOVE): { + mEllipse.actionMove(mActiveHandle, x, y, mGradRep); + setRepresentation(mGradRep); + break; + } + } + invalidate(); + mEditorGrad.commitLocalRepresentation(); + return true; + } + + public void setRepresentation(FilterGradRepresentation pointRep) { + mGradRep = pointRep; + Matrix toImg = getScreenToImageMatrix(false); + + toImg.invert(mToScr); + + float[] c1 = new float[] { mGradRep.getPoint1X(), mGradRep.getPoint1Y() }; + float[] c2 = new float[] { mGradRep.getPoint2X(), mGradRep.getPoint2Y() }; + + if (c1[0] == -1) { + float cx = MasterImage.getImage().getOriginalBounds().width() / 2; + float cy = MasterImage.getImage().getOriginalBounds().height() / 2; + float rx = Math.min(cx, cy) * .4f; + + mGradRep.setPoint1(cx, cy-rx); + mGradRep.setPoint2(cx, cy+rx); + c1[0] = cx; + c1[1] = cy-rx; + mToScr.mapPoints(c1); + if (getWidth() != 0) { + mEllipse.setPoint1(c1[0], c1[1]); + c2[0] = cx; + c2[1] = cy+rx; + mToScr.mapPoints(c2); + mEllipse.setPoint2(c2[0], c2[1]); + } + mEditorGrad.commitLocalRepresentation(); + } else { + mToScr.mapPoints(c1); + mToScr.mapPoints(c2); + mEllipse.setPoint1(c1[0], c1[1]); + mEllipse.setPoint2(c2[0], c2[1]); + } + } + + public void drawOtherPoints(Canvas canvas) { + computCenterLocations(); + for (int i = 0; i < mPointsX.length; i++) { + if (mPointsX[i] != -1) { + mEllipse.paintGrayPoint(canvas, mPointsX[i], mPointsY[i]); + } + } + } + + public void computCenterLocations() { + int x1[] = mGradRep.getXPos1(); + int y1[] = mGradRep.getYPos1(); + int x2[] = mGradRep.getXPos2(); + int y2[] = mGradRep.getYPos2(); + int selected = mGradRep.getSelectedPoint(); + boolean m[] = mGradRep.getMask(); + float[] c = new float[2]; + for (int i = 0; i < m.length; i++) { + if (selected == i || !m[i]) { + mPointsX[i] = -1; + continue; + } + + c[0] = (x1[i]+x2[i])/2; + c[1] = (y1[i]+y2[i])/2; + mToScr.mapPoints(c); + + mPointsX[i] = c[0]; + mPointsY[i] = c[1]; + } + } + + public void setEditor(EditorGrad editorGrad) { + mEditorGrad = editorGrad; + } + + @Override + public void onDraw(Canvas canvas) { + super.onDraw(canvas); + if (mGradRep == null) { + return; + } + setRepresentation(mGradRep); + mEllipse.draw(canvas); + drawOtherPoints(canvas); + } + +} |