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comparison Android/java/org/madbutterfly/MBView.java @ 493:1b6228092a57 Android_Skia

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Java code for MadButterfly JNI. This is Java code that access MadButterfly JNI interface.
author Thinker K.F. Li <thinker@branda.to>
date Thu, 26 Nov 2009 15:02:51 +0800
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children 2d7df44e6299
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492:e95598916dfb 493:1b6228092a57
1 package org.madbutterfly;
2
3 import android.view.SurfaceView;
4 import android.view.SurfaceHolder;
5 import android.content.Context;
6 import android.graphics.Canvas;
7 import android.graphics.Bitmap;
8 import android.graphics.Paint;
9 import android.graphics.Xfermode;
10 import android.graphics.PorterDuff;
11 import android.graphics.PorterDuffXfermode;
12
13 class MBView extends SurfaceView {
14 redraw_man rdman;
15 Canvas cr, backend;
16 Bitmap cr_bmap, backend_bmap;
17 Paint copy_pnt;
18 int w, h;
19
20 public MBView(Context context) {
21 super(context);
22 Paint paint;
23 Xfermode mode;
24
25 rdman = null;
26 cr = null;
27 backend = null;
28
29 mode = new PorterDuffXfermode(PorterDuff.Mode.SRC);
30 copy_pnt = new Paint();
31 copy_pnt.setXfermode(mode);
32 }
33
34 public redraw_man get_rdman() {
35 if(rdman != null)
36 return rdman;
37
38 w = getWidth();
39 h = getHeight();
40
41 cr_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
42 cr = new Canvas(cr_bmap);
43 backend_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
44 backend = new Canvas(backend_bmap);
45
46 rdman = new redraw_man(cr, backend, this);
47
48 return rdman;
49 }
50
51 protected void onSizeChanged(int w, int h, int oldw, int oldh) {
52 this.w = w;
53 this.h = h;
54 cr_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
55 cr.setBitmap(cr_bmap);
56 backend_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
57 backend.setBitmap(backend_bmap);
58 }
59
60 public void redraw() {
61 SurfaceHolder holder;
62 Canvas canvas;
63
64 holder = getHolder();
65 canvas = holder.lockCanvas();
66 canvas.drawBitmap(backend_bmap, 0, 0, copy_pnt);
67 }
68 }