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annotate Android/java/org/madbutterfly/MBView.java @ 881:a17c4e231e54 abs_n_rel_center

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Transform positions of radient paints. cx, cy of radial and x1, y1, x2, y2 of linear gradient paints must be transformed with aggregated matrix of painted shapes. Pattern to user space transformation maybe used to get more precise color.
author Thinker K.F. Li <thinker@codemud.net>
date Sat, 25 Sep 2010 20:12:45 +0800
parents c468e397614d
children
rev   line source
493
1b6228092a57 Java code for MadButterfly JNI.
Thinker K.F. Li <thinker@branda.to>
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1 package org.madbutterfly;
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2
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3 import android.view.SurfaceView;
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4 import android.view.SurfaceHolder;
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5 import android.content.Context;
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6 import android.graphics.Canvas;
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7 import android.graphics.Bitmap;
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8 import android.graphics.Paint;
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9 import android.graphics.Xfermode;
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10 import android.graphics.PorterDuff;
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11 import android.graphics.PorterDuffXfermode;
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12
499
2d7df44e6299 Make classes public
Thinker K.F. Li <thinker@branda.to>
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13 public class MBView extends SurfaceView {
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14 redraw_man rdman;
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15 Canvas cr, backend;
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16 Bitmap cr_bmap, backend_bmap;
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17 Paint copy_pnt;
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18 int w, h;
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19
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20 public MBView(Context context) {
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21 super(context);
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22 Paint paint;
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23 Xfermode mode;
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24
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25 rdman = null;
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26 cr = null;
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27 backend = null;
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28
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29 mode = new PorterDuffXfermode(PorterDuff.Mode.SRC);
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30 copy_pnt = new Paint();
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31 copy_pnt.setXfermode(mode);
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c468e397614d Fix issue of initialize rdman and add shape::stroke_width().
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32 w = 100;
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33 h = 100;
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34 }
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35
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36 public redraw_man get_rdman() {
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37 if(rdman != null)
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38 return rdman;
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39
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40 w = getWidth();
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41 h = getHeight();
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42
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43 cr_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
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44 cr = new Canvas(cr_bmap);
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45 backend_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
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46 backend = new Canvas(backend_bmap);
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47
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48 rdman = new redraw_man(cr, backend, this);
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49
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50 return rdman;
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51 }
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52
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53 protected void onSizeChanged(int w, int h, int oldw, int oldh) {
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54 this.w = w;
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55 this.h = h;
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c468e397614d Fix issue of initialize rdman and add shape::stroke_width().
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56
c468e397614d Fix issue of initialize rdman and add shape::stroke_width().
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57 if(rdman == null) {
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58 get_rdman();
c468e397614d Fix issue of initialize rdman and add shape::stroke_width().
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59 return;
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60 }
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61
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62 cr_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
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63 cr.setBitmap(cr_bmap);
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64 backend_bmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
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65 backend.setBitmap(backend_bmap);
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66 }
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67
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68 public void redraw() {
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69 SurfaceHolder holder;
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70 Canvas canvas;
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71
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72 holder = getHolder();
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73 canvas = holder.lockCanvas();
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74 canvas.drawBitmap(backend_bmap, 0, 0, copy_pnt);
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75 holder.unlockCanvasAndPost(canvas);
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76 }
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77 }