Mercurial > MadButterfly

comparison Android/java/org/madbutterfly/MBView.java @ 572:dcd7adb2c0fc

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Merge from Android_Skia
author Thinker K.F. Li <thinker@branda.to>
date Wed, 09 Jun 2010 17:30:09 +0800
parents c468e397614d
children
comparison
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463:aa2b388fba4e 572:dcd7adb2c0fc
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 public 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 w = 100;
33 h = 100;
34 }
35
36 public redraw_man get_rdman() {
37 if(rdman != null)
38 return rdman;
39
40 w = getWidth();
41 h = getHeight();
42
43 cr_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
44 cr = new Canvas(cr_bmap);
45 backend_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
46 backend = new Canvas(backend_bmap);
47
48 rdman = new redraw_man(cr, backend, this);
49
50 return rdman;
51 }
52
53 protected void onSizeChanged(int w, int h, int oldw, int oldh) {
54 this.w = w;
55 this.h = h;
56
57 if(rdman == null) {
58 get_rdman();
59 return;
60 }
61
62 cr_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
63 cr.setBitmap(cr_bmap);
64 backend_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
65 backend.setBitmap(backend_bmap);
66 }
67
68 public void redraw() {
69 SurfaceHolder holder;
70 Canvas canvas;
71
72 holder = getHolder();
73 canvas = holder.lockCanvas();
74 canvas.drawBitmap(backend_bmap, 0, 0, copy_pnt);
75 holder.unlockCanvasAndPost(canvas);
76 }
77 }