Cross Reference: /packages/apps/VideoEditor/src/com/android/videoeditor/widgets/ZoomControl.java

Lines Matching refs:alpha
148                     final double alpha = Math.atan((double)y / (double)x);
150                     if (!checkHit(x, y, alpha)) {
156                         mThumbX = (int)((mRadius * Math.cos(alpha)) + (getWidth() / 2));
157                         mThumbY = (int)((getHeight() / 2) - (mRadius * Math.sin(alpha)));
158                         progress = (int)((mMaxProgress / 2) - (alpha / mInterval));
160                         mThumbX = (int)((mRadius * Math.cos(alpha)) + (getWidth() / 2));
161                         mThumbY = (int)((getHeight() / 2) - (mRadius * Math.sin(alpha)));
162                         progress = (int)((mMaxProgress / 2) - (alpha / mInterval));
164                         mThumbX = (int)((getWidth() / 2) - (mRadius * Math.cos(alpha)));
165                         mThumbY = (int)((getHeight() / 2) + (mRadius * Math.sin(alpha)));
166                         progress = -(int)(((alpha + MAX_ANGLE) / mInterval));
168                         mThumbX = (int)((getWidth() / 2) - (mRadius * Math.cos(alpha)));
169                         mThumbY = (int)((getHeight() / 2) + (mRadius * Math.sin(alpha)));
170                         progress = (int)(mMaxProgress - ((alpha - MAX_ANGLE) / mInterval));
203      * @param alpha The angle
206     private boolean checkHit(float x, float y, double alpha) {
215             if ((alpha >= -(Math.PI / 2)) && (alpha <= -MAX_ANGLE)) {
219             if ((alpha >= MAX_ANGLE) && (alpha <= (Math.PI / 2))) {
242         final double alpha;
244             alpha = beta;
245             mThumbX = (int)((mRadius * Math.cos(alpha)) + (getWidth() / 2));
246             mThumbY = (int)((getHeight() / 2) - (mRadius * Math.sin(alpha)));
248             alpha = beta - Math.PI;
249             mThumbX = (int)((getWidth() / 2) - (mRadius * Math.cos(alpha)));
250             mThumbY = (int)((getHeight() / 2) + (mRadius * Math.sin(alpha)));
252             alpha = beta - (2 * Math.PI);
253             mThumbX = (int)((mRadius * Math.cos(alpha)) + (getWidth() / 2));
254             mThumbY = (int)((getHeight() / 2) - (mRadius * Math.sin(alpha)));
256             alpha = beta - Math.PI;
257             mThumbX = (int)((getWidth() / 2) - (mRadius * Math.cos(alpha)));
258             mThumbY = (int)((getHeight() / 2) + (mRadius * Math.sin(alpha)));