1/*
2 * Copyright (C) 2011 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
17package com.android.testapp;
18
19import java.io.Writer;
20import java.util.ArrayList;
21import java.util.concurrent.Semaphore;
22
23import android.renderscript.RSSurfaceView;
24import android.renderscript.RenderScript;
25import android.renderscript.RenderScriptGL;
26
27import android.content.Context;
28import android.content.res.Resources;
29import android.graphics.Bitmap;
30import android.graphics.drawable.BitmapDrawable;
31import android.graphics.drawable.Drawable;
32import android.os.Handler;
33import android.os.Message;
34import android.util.AttributeSet;
35import android.util.Log;
36import android.view.Surface;
37import android.view.SurfaceHolder;
38import android.view.SurfaceView;
39import android.view.KeyEvent;
40import android.view.MotionEvent;
41import android.view.ScaleGestureDetector;
42
43public class TestAppView extends RSSurfaceView {
44
45    public TestAppView(Context context) {
46        super(context);
47        mScaleDetector = new ScaleGestureDetector(context, new ScaleListener());
48    }
49
50    private RenderScriptGL mRS;
51    TestAppRS mRender;
52
53    private ScaleGestureDetector mScaleDetector;
54    private static final int INVALID_POINTER_ID = -1;
55    private int mActivePointerId = INVALID_POINTER_ID;
56
57    public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
58        super.surfaceChanged(holder, format, w, h);
59        if (mRS == null) {
60            RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig();
61            sc.setDepth(16, 24);
62            sc.setSamples(1, 2, 1);
63            mRS = createRenderScriptGL(sc);
64            mRS.setSurface(holder, w, h);
65            mRender = new TestAppRS();
66            mRender.init(mRS, getResources(), w, h);
67        }
68    }
69
70    @Override
71    protected void onDetachedFromWindow() {
72        if (mRS != null) {
73            mRender = null;
74            mRS = null;
75            destroyRenderScriptGL();
76        }
77    }
78
79    @Override
80    public boolean onKeyDown(int keyCode, KeyEvent event)
81    {
82        // break point at here
83        // this method doesn't work when 'extends View' include 'extends ScrollView'.
84        return super.onKeyDown(keyCode, event);
85    }
86
87
88    @Override
89    public boolean onTouchEvent(MotionEvent ev) {
90        mScaleDetector.onTouchEvent(ev);
91
92        boolean ret = false;
93        float x = ev.getX();
94        float y = ev.getY();
95
96        final int action = ev.getAction();
97
98        switch (action & MotionEvent.ACTION_MASK) {
99        case MotionEvent.ACTION_DOWN: {
100            mRender.onActionDown(x, y);
101            mActivePointerId = ev.getPointerId(0);
102            ret = true;
103            break;
104        }
105        case MotionEvent.ACTION_MOVE: {
106            if (!mScaleDetector.isInProgress()) {
107                mRender.onActionMove(x, y);
108            }
109            mRender.onActionDown(x, y);
110            ret = true;
111            break;
112        }
113
114        case MotionEvent.ACTION_UP: {
115            mActivePointerId = INVALID_POINTER_ID;
116            break;
117        }
118
119        case MotionEvent.ACTION_CANCEL: {
120            mActivePointerId = INVALID_POINTER_ID;
121            break;
122        }
123
124        case MotionEvent.ACTION_POINTER_UP: {
125            final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK)
126                    >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
127            final int pointerId = ev.getPointerId(pointerIndex);
128            if (pointerId == mActivePointerId) {
129                // This was our active pointer going up. Choose a new
130                // active pointer and adjust accordingly.
131                final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
132                x = ev.getX(newPointerIndex);
133                y = ev.getY(newPointerIndex);
134                mRender.onActionDown(x, y);
135                mActivePointerId = ev.getPointerId(newPointerIndex);
136            }
137            break;
138        }
139        }
140
141        return ret;
142    }
143
144    private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener {
145        @Override
146        public boolean onScale(ScaleGestureDetector detector) {
147            mRender.onActionScale(detector.getScaleFactor());
148            return true;
149        }
150    }
151}
152
153
154