navit/navit/graphics/android/graphics_android.c

   1 /**
   2  * Navit, a modular navigation system.
   3  * Copyright (C) 2005-2008 Navit Team
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * version 2 as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include <unistd.h>
  21 #include <glib.h>
  22 #include <poll.h>
  23 #include "config.h"
  24 #include "window.h"
  25 #include "point.h"
  26 #include "graphics.h"
  27 #include "color.h"
  28 #include "plugin.h"
  29 #include "event.h"
  30 #include "debug.h"
  31 #include "callback.h"
  32 #include "android.h"
  33
  34 int dummy;
  35
  36 struct graphics_priv {
  37         jclass NavitGraphicsClass;
  38         jmethodID NavitGraphics_draw_polyline, NavitGraphics_draw_polygon, NavitGraphics_draw_rectangle, NavitGraphics_draw_circle, NavitGraphics_draw_text, NavitGraphics_draw_image, NavitGraphics_draw_mode, NavitGraphics_draw_drag, NavitGraphics_overlay_disable, NavitGraphics_overlay_resize, NavitGraphics_SetCamera;
  39
  40         jclass PaintClass;
  41         jmethodID Paint_init,Paint_setStrokeWidth,Paint_setARGB;
  42
  43         jobject NavitGraphics;
  44         jobject Paint;
  45
  46         jclass BitmapFactoryClass;
  47         jmethodID BitmapFactory_decodeFile, BitmapFactory_decodeResource;
  48
  49         jclass BitmapClass;
  50         jmethodID Bitmap_getHeight, Bitmap_getWidth;
  51
  52         jclass ContextClass;
  53         jmethodID Context_getResources;
  54
  55         jclass ResourcesClass;
  56         jobject Resources;
  57         jmethodID Resources_getIdentifier;
  58
  59         jobject packageName;
  60
  61         struct callback_list *cbl;
  62         struct window win;
  63 };
  64
  65 struct graphics_font_priv {
  66         int size;
  67 };
  68
  69 struct graphics_gc_priv {
  70         struct graphics_priv *gra;
  71         int linewidth;
  72         enum draw_mode_num mode;
  73         int a,r,g,b;
  74 };
  75
  76 struct graphics_image_priv {
  77         jobject Bitmap;
  78         int width;
  79         int height;
  80         struct point hot;
  81 };
  82
  83 static GHashTable *image_cache_hash = NULL;
  84
  85 static int
  86 find_class_global(char *name, jclass *ret)
  87 {
  88         *ret=(*jnienv)->FindClass(jnienv, name);
  89         if (! *ret) {
  90                 dbg(0,"Failed to get Class %s\n",name);
  91                 return 0;
  92         }
  93         *ret = (*jnienv)->NewGlobalRef(jnienv, *ret);
  94         return 1;
  95 }
  96
  97 static int
  98 find_method(jclass class, char *name, char *args, jmethodID *ret)
  99 {
 100         *ret = (*jnienv)->GetMethodID(jnienv, class, name, args);
 101         if (*ret == NULL) {
 102                 dbg(0,"Failed to get Method %s with signature %s\n",name,args);
 103                 return 0;
 104         }
 105         return 1;
 106 }
 107
 108 static int
 109 find_static_method(jclass class, char *name, char *args, jmethodID *ret)
 110 {
 111         *ret = (*jnienv)->GetStaticMethodID(jnienv, class, name, args);
 112         if (*ret == NULL) {
 113                 dbg(0,"Failed to get static Method %s with signature %s\n",name,args);
 114                 return 0;
 115         }
 116         return 1;
 117 }
 118
 119 static void
 120 graphics_destroy(struct graphics_priv *gr)
 121 {
 122 }
 123
 124 static void font_destroy(struct graphics_font_priv *font)
 125 {
 126         g_free(font);
 127 }
 128
 129 static struct graphics_font_methods font_methods = {
 130         font_destroy
 131 };
 132
 133 static struct graphics_font_priv *font_new(struct graphics_priv *gr, struct graphics_font_methods *meth, char *font,  int size, int flags)
 134 {
 135         struct graphics_font_priv *ret=g_new0(struct graphics_font_priv, 1);
 136         *meth=font_methods;
 137
 138         ret->size=size;
 139         return ret;
 140 }
 141
 142 static void
 143 gc_destroy(struct graphics_gc_priv *gc)
 144 {
 145         g_free(gc);
 146 }
 147
 148 static void
 149 gc_set_linewidth(struct graphics_gc_priv *gc, int w)
 150 {
 151     gc->linewidth = w;
 152 }
 153
 154 static void
 155 gc_set_dashes(struct graphics_gc_priv *gc, int w, int offset, unsigned char *dash_list, int n)
 156 {
 157 }
 158
 159 static void
 160 gc_set_foreground(struct graphics_gc_priv *gc, struct color *c)
 161 {
 162     gc->r = c->r >> 8;
 163     gc->g = c->g >> 8;
 164     gc->b = c->b >> 8;
 165     gc->a = c->a >> 8;
 166 }
 167
 168 static void
 169 gc_set_background(struct graphics_gc_priv *gc, struct color *c)
 170 {
 171 }
 172
 173 static struct graphics_gc_methods gc_methods = {
 174         gc_destroy,
 175         gc_set_linewidth,
 176         gc_set_dashes,
 177         gc_set_foreground,
 178         gc_set_background
 179 };
 180
 181 static struct graphics_gc_priv *gc_new(struct graphics_priv *gr, struct graphics_gc_methods *meth)
 182 {
 183         struct graphics_gc_priv *ret=g_new0(struct graphics_gc_priv, 1);
 184         *meth=gc_methods;
 185
 186         ret->gra = gr;
 187         ret->a = ret->r = ret->g = ret->b = 255;
 188         ret->linewidth=1;
 189         return ret;
 190 }
 191
 192 static void image_destroy(struct graphics_image_priv *img)
 193 {
 194     // unused?
 195 }
 196
 197 static struct graphics_image_methods image_methods = {
 198         image_destroy
 199 };
 200
 201
 202 static struct graphics_image_priv *
 203 image_new(struct graphics_priv *gra, struct graphics_image_methods *meth, char *path, int *w, int *h, struct point *hot, int rotation)
 204 {
 205         struct graphics_image_priv* ret = NULL;
 206
 207         if ( !g_hash_table_lookup_extended( image_cache_hash, path, NULL, (gpointer)&ret) )
 208         {
 209                 ret=g_new0(struct graphics_image_priv, 1);
 210                 jstring string;
 211                 jclass localBitmap = NULL;
 212                 int id;
 213
 214                 dbg(1,"enter %s\n",path);
 215                 if (!strncmp(path,"res/drawable/",13)) {
 216                         jstring a=(*jnienv)->NewStringUTF(jnienv, "drawable");
 217                         char *path_noext=g_strdup(path+13);
 218                         char *pos=strrchr(path_noext, '.');
 219                         if (pos)
 220                                 *pos='\0';
 221                         dbg(1,"path_noext=%s\n",path_noext);
 222                         string = (*jnienv)->NewStringUTF(jnienv, path_noext);
 223                         g_free(path_noext);
 224                         id=(*jnienv)->CallIntMethod(jnienv, gra->Resources, gra->Resources_getIdentifier, string, a, gra->packageName);
 225                         dbg(1,"id=%d\n",id);
 226                         if (id)
 227                                 localBitmap=(*jnienv)->CallStaticObjectMethod(jnienv, gra->BitmapFactoryClass, gra->BitmapFactory_decodeResource, gra->Resources, id);
 228                         (*jnienv)->DeleteLocalRef(jnienv, a);
 229                 } else {
 230                         string = (*jnienv)->NewStringUTF(jnienv, path);
 231                         localBitmap=(*jnienv)->CallStaticObjectMethod(jnienv, gra->BitmapFactoryClass, gra->BitmapFactory_decodeFile, string);
 232                 }
 233                 dbg(1,"result=%p\n",localBitmap);
 234                 if (localBitmap) {
 235                         ret->Bitmap = (*jnienv)->NewGlobalRef(jnienv, localBitmap);
 236                         (*jnienv)->DeleteLocalRef(jnienv, localBitmap);
 237                         ret->width=(*jnienv)->CallIntMethod(jnienv, ret->Bitmap, gra->Bitmap_getWidth);
 238                         ret->height=(*jnienv)->CallIntMethod(jnienv, ret->Bitmap, gra->Bitmap_getHeight);
 239                         dbg(1,"w=%d h=%d for %s\n",ret->width,ret->height,path);
 240                         ret->hot.x=ret->width/2;
 241                         ret->hot.y=ret->height/2;
 242                 } else {
 243                         g_free(ret);
 244                         ret=NULL;
 245                         dbg(1,"Failed to open %s\n",path);
 246                 }
 247                 (*jnienv)->DeleteLocalRef(jnienv, string);
 248                 g_hash_table_insert(image_cache_hash, g_strdup( path ),  (gpointer)ret );
 249         }
 250         if (ret) {
 251                 *w=ret->width;
 252                 *h=ret->height;
 253                 if (hot)
 254                         *hot=ret->hot;
 255         }
 256
 257         return ret;
 258 }
 259
 260 static void initPaint(struct graphics_priv *gra, struct graphics_gc_priv *gc)
 261 {
 262     float wf = gc->linewidth;
 263     (*jnienv)->CallVoidMethod(jnienv, gc->gra->Paint, gra->Paint_setStrokeWidth, wf);
 264     (*jnienv)->CallVoidMethod(jnienv, gc->gra->Paint, gra->Paint_setARGB, gc->a, gc->r, gc->g, gc->b);
 265 }
 266
 267 static void
 268 draw_lines(struct graphics_priv *gra, struct graphics_gc_priv *gc, struct point *p, int count)
 269 {
 270         jint pc[count*2];
 271         int i;
 272         jintArray points;
 273         if (count <= 0)
 274                 return;
 275         points = (*jnienv)->NewIntArray(jnienv,count*2);
 276         for (i = 0 ; i < count ; i++) {
 277                 pc[i*2]=p[i].x;
 278                 pc[i*2+1]=p[i].y;
 279         }
 280         initPaint(gra, gc);
 281         (*jnienv)->SetIntArrayRegion(jnienv, points, 0, count*2, pc);
 282         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_polyline, gc->gra->Paint, points);
 283         (*jnienv)->DeleteLocalRef(jnienv, points);
 284 }
 285
 286 static void
 287 draw_polygon(struct graphics_priv *gra, struct graphics_gc_priv *gc, struct point *p, int count)
 288 {
 289         jint pc[count*2];
 290         int i;
 291         jintArray points;
 292         if (count <= 0)
 293                 return;
 294         points = (*jnienv)->NewIntArray(jnienv,count*2);
 295         for (i = 0 ; i < count ; i++) {
 296                 pc[i*2]=p[i].x;
 297                 pc[i*2+1]=p[i].y;
 298         }
 299         initPaint(gra, gc);
 300         (*jnienv)->SetIntArrayRegion(jnienv, points, 0, count*2, pc);
 301         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_polygon, gc->gra->Paint, points);
 302         (*jnienv)->DeleteLocalRef(jnienv, points);
 303 }
 304
 305 static void
 306 draw_rectangle(struct graphics_priv *gra, struct graphics_gc_priv *gc, struct point *p, int w, int h)
 307 {
 308         initPaint(gra, gc);
 309         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_rectangle, gc->gra->Paint, p->x, p->y, w, h);
 310 }
 311
 312 static void
 313 draw_circle(struct graphics_priv *gra, struct graphics_gc_priv *gc, struct point *p, int r)
 314 {
 315         initPaint(gra, gc);
 316         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_circle, gc->gra->Paint, p->x, p->y, r);
 317 }
 318
 319
 320 static void
 321 draw_text(struct graphics_priv *gra, struct graphics_gc_priv *fg, struct graphics_gc_priv *bg, struct graphics_font_priv *font, char *text, struct point *p, int dx, int dy)
 322 {
 323         dbg(1,"enter %s\n", text);
 324         initPaint(gra, fg);
 325         jstring string = (*jnienv)->NewStringUTF(jnienv, text);
 326         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_text, fg->gra->Paint, p->x, p->y, string, font->size, dx, dy);
 327         (*jnienv)->DeleteLocalRef(jnienv, string);
 328 }
 329
 330 static void
 331 draw_image(struct graphics_priv *gra, struct graphics_gc_priv *fg, struct point *p, struct graphics_image_priv *img)
 332 {
 333         dbg(1,"enter %p\n",img);
 334         initPaint(gra, fg);
 335         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_image, fg->gra->Paint, p->x, p->y, img->Bitmap);
 336
 337 }
 338
 339 static void
 340 draw_image_warp(struct graphics_priv *gr, struct graphics_gc_priv *fg, struct point *p, int count, char *data)
 341 {
 342 }
 343
 344 static void
 345 draw_restore(struct graphics_priv *gr, struct point *p, int w, int h)
 346 {
 347 }
 348
 349 static void draw_drag(struct graphics_priv *gra, struct point *p)
 350 {
 351         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_drag, p ? p->x : 0, p ? p->y : 0);
 352 }
 353
 354 static void
 355 background_gc(struct graphics_priv *gr, struct graphics_gc_priv *gc)
 356 {
 357 }
 358
 359 static void
 360 draw_mode(struct graphics_priv *gra, enum draw_mode_num mode)
 361 {
 362         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_mode, (int)mode);
 363 }
 364
 365 static struct graphics_priv * overlay_new(struct graphics_priv *gr, struct graphics_methods *meth, struct point *p, int w, int h, int alpha, int wraparound);
 366
 367 static void *
 368 get_data(struct graphics_priv *this, const char *type)
 369 {
 370         if (strcmp(type,"window"))
 371                 return NULL;
 372         return &this->win;
 373 }
 374
 375 static void image_free(struct graphics_priv *gr, struct graphics_image_priv *priv)
 376 {
 377 }
 378
 379 static void get_text_bbox(struct graphics_priv *gr, struct graphics_font_priv *font, char *text, int dx, int dy, struct point *ret, int estimate)
 380 {
 381         int len = g_utf8_strlen(text, -1);
 382         int xMin = 0;
 383         int yMin = 0;
 384         int yMax = 13*font->size/256;
 385         int xMax = 9*font->size*len/256;
 386
 387         ret[0].x = xMin;
 388         ret[0].y = -yMin;
 389         ret[1].x = xMin;
 390         ret[1].y = -yMax;
 391         ret[2].x = xMax;
 392         ret[2].y = -yMax;
 393         ret[3].x = xMax;
 394         ret[3].y = -yMin;
 395 }
 396
 397 static void overlay_disable(struct graphics_priv *gra, int disable)
 398 {
 399         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_overlay_disable, disable);
 400 }
 401
 402 static void overlay_resize(struct graphics_priv *gra, struct point *pnt, int w, int h, int alpha, int wraparound)
 403 {
 404         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_overlay_resize, pnt ? pnt->x:0 , pnt ? pnt->y:0, w, h, alpha, wraparound);
 405 }
 406
 407 static int
 408 set_attr(struct graphics_priv *gra, struct attr *attr)
 409 {
 410         switch (attr->type) {
 411         case attr_use_camera:
 412                 (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_SetCamera, attr->u.num);
 413                 return 1;
 414         default:
 415                 return 0;
 416         }
 417 }
 418
 419 static struct graphics_methods graphics_methods = {
 420         graphics_destroy,
 421         draw_mode,
 422         draw_lines,
 423         draw_polygon,
 424         draw_rectangle,
 425         draw_circle,
 426         draw_text,
 427         draw_image,
 428         draw_image_warp,
 429         draw_restore,
 430         draw_drag,
 431         font_new,
 432         gc_new,
 433         background_gc,
 434         overlay_new,
 435         image_new,
 436         get_data,
 437         image_free,
 438         get_text_bbox,
 439         overlay_disable,
 440         overlay_resize,
 441         set_attr,
 442 };
 443
 444 static void
 445 resize_callback(struct graphics_priv *gra, int w, int h)
 446 {
 447         dbg(0,"w=%d h=%d ok\n",w,h);
 448          callback_list_call_attr_2(gra->cbl, attr_resize, (void *)w, (void *)h);
 449 }
 450
 451 static void
 452 motion_callback(struct graphics_priv *gra, int x, int y)
 453 {
 454         struct point p;
 455         p.x=x;
 456         p.y=y;
 457         callback_list_call_attr_1(gra->cbl, attr_motion, (void *)&p);
 458 }
 459
 460 static void
 461 keypress_callback(struct graphics_priv *gra, char *s)
 462 {
 463         dbg(0,"enter %s\n",s);
 464         callback_list_call_attr_1(gra->cbl, attr_keypress, s);
 465 }
 466
 467 static void
 468 button_callback(struct graphics_priv *gra, int pressed, int button, int x, int y)
 469 {
 470         struct point p;
 471         p.x=x;
 472         p.y=y;
 473         callback_list_call_attr_3(gra->cbl, attr_button, (void *)pressed, (void *)button, (void *)&p);
 474 }
 475
 476
 477 static int
 478 set_activity(jobject graphics)
 479 {
 480         jclass ActivityClass;
 481         jmethodID cid;
 482
 483         ActivityClass = (*jnienv)->GetObjectClass(jnienv, android_activity);
 484         dbg(0,"at 5\n");
 485         if (ActivityClass == NULL) {
 486                 dbg(0,"no activity class found\n");
 487                 return 0;
 488         }
 489         dbg(0,"at 6\n");
 490         cid = (*jnienv)->GetMethodID(jnienv, ActivityClass, "setContentView", "(Landroid/view/View;)V");
 491         if (cid == NULL) {
 492                 dbg(0,"no setContentView method found\n");
 493                 return 0;
 494         }
 495         dbg(0,"at 7\n");
 496         (*jnienv)->CallVoidMethod(jnienv, android_activity, cid, graphics);
 497         dbg(0,"at 8\n");
 498         return 1;
 499 }
 500
 501 static int
 502 graphics_android_init(struct graphics_priv *ret, struct graphics_priv *parent, struct point *pnt, int w, int h, int alpha, int wraparound, int use_camera)
 503 {
 504         struct callback *cb;
 505         jmethodID cid, Context_getPackageName;
 506
 507         dbg(0,"at 2 jnienv=%p\n",jnienv);
 508         if (!find_class_global("android/graphics/Paint", &ret->PaintClass))
 509                 return 0;
 510         if (!find_method(ret->PaintClass, "<init>", "(I)V", &ret->Paint_init))
 511                 return 0;
 512         if (!find_method(ret->PaintClass, "setARGB", "(IIII)V", &ret->Paint_setARGB))
 513                 return 0;
 514         if (!find_method(ret->PaintClass, "setStrokeWidth", "(F)V", &ret->Paint_setStrokeWidth))
 515                 return 0;
 516
 517         if (!find_class_global("android/graphics/BitmapFactory", &ret->BitmapFactoryClass))
 518                 return 0;
 519         if (!find_static_method(ret->BitmapFactoryClass, "decodeFile", "(Ljava/lang/String;)Landroid/graphics/Bitmap;", &ret->BitmapFactory_decodeFile))
 520                 return 0;
 521         if (!find_static_method(ret->BitmapFactoryClass, "decodeResource", "(Landroid/content/res/Resources;I)Landroid/graphics/Bitmap;", &ret->BitmapFactory_decodeResource))
 522                 return 0;
 523
 524         if (!find_class_global("android/graphics/Bitmap", &ret->BitmapClass))
 525                 return 0;
 526         if (!find_method(ret->BitmapClass, "getHeight", "()I", &ret->Bitmap_getHeight))
 527                 return 0;
 528         if (!find_method(ret->BitmapClass, "getWidth", "()I", &ret->Bitmap_getWidth))
 529                 return 0;
 530
 531         if (!find_class_global("android/content/Context", &ret->ContextClass))
 532                 return 0;
 533         if (!find_method(ret->ContextClass, "getResources", "()Landroid/content/res/Resources;", &ret->Context_getResources))
 534                 return 0;
 535
 536
 537         ret->Resources=(*jnienv)->CallObjectMethod(jnienv, android_activity, ret->Context_getResources);
 538         if (ret->Resources)
 539                 ret->Resources = (*jnienv)->NewGlobalRef(jnienv, ret->Resources);
 540         if (!find_class_global("android/content/res/Resources", &ret->ResourcesClass))
 541                 return 0;
 542         if (!find_method(ret->ResourcesClass, "getIdentifier", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)I", &ret->Resources_getIdentifier))
 543                 return 0;
 544
 545         if (!find_method(ret->ContextClass, "getPackageName", "()Ljava/lang/String;", &Context_getPackageName))
 546                 return 0;
 547         ret->packageName=(*jnienv)->CallObjectMethod(jnienv, android_activity, Context_getPackageName);
 548         ret->packageName=(*jnienv)->NewGlobalRef(jnienv, ret->packageName);
 549
 550         if (!find_class_global("org/navitproject/navit/NavitGraphics", &ret->NavitGraphicsClass))
 551                 return 0;
 552         dbg(0,"at 3\n");
 553         cid = (*jnienv)->GetMethodID(jnienv, ret->NavitGraphicsClass, "<init>", "(Landroid/app/Activity;Lorg/navitproject/navit/NavitGraphics;IIIIIII)V");
 554         if (cid == NULL) {
 555                 dbg(0,"no method found\n");
 556                 return 0; /* exception thrown */
 557         }
 558         dbg(0,"at 4 android_activity=%p\n",android_activity);
 559         ret->NavitGraphics=(*jnienv)->NewObject(jnienv, ret->NavitGraphicsClass, cid, android_activity, parent ? parent->NavitGraphics : NULL, pnt ? pnt->x:0 , pnt ? pnt->y:0, w, h, alpha, wraparound, use_camera);
 560         dbg(0,"result=%p\n",ret->NavitGraphics);
 561         if (ret->NavitGraphics)
 562                 ret->NavitGraphics = (*jnienv)->NewGlobalRef(jnienv, ret->NavitGraphics);
 563
 564         /* Create a single global Paint, otherwise android will quickly run out
 565          * of global refs.*/
 566         /* 0x101 = text kerning (default), antialiasing */
 567         ret->Paint=(*jnienv)->NewObject(jnienv, ret->PaintClass, ret->Paint_init, 0x101);
 568
 569         dbg(0,"result=%p\n",ret->Paint);
 570         if (ret->Paint)
 571                 ret->Paint = (*jnienv)->NewGlobalRef(jnienv, ret->Paint);
 572
 573         cid = (*jnienv)->GetMethodID(jnienv, ret->NavitGraphicsClass, "setSizeChangedCallback", "(I)V");
 574         if (cid == NULL) {
 575                 dbg(0,"no SetResizeCallback method found\n");
 576                 return 0; /* exception thrown */
 577         }
 578         cb=callback_new_1(callback_cast(resize_callback), ret);
 579         (*jnienv)->CallVoidMethod(jnienv, ret->NavitGraphics, cid, (int)cb);
 580
 581         cid = (*jnienv)->GetMethodID(jnienv, ret->NavitGraphicsClass, "setButtonCallback", "(I)V");
 582         if (cid == NULL) {
 583                 dbg(0,"no SetButtonCallback method found\n");
 584                 return 0; /* exception thrown */
 585         }
 586         cb=callback_new_1(callback_cast(button_callback), ret);
 587         (*jnienv)->CallVoidMethod(jnienv, ret->NavitGraphics, cid, (int)cb);
 588
 589         cid = (*jnienv)->GetMethodID(jnienv, ret->NavitGraphicsClass, "setMotionCallback", "(I)V");
 590         if (cid == NULL) {
 591                 dbg(0,"no SetMotionCallback method found\n");
 592                 return 0; /* exception thrown */
 593         }
 594         cb=callback_new_1(callback_cast(motion_callback), ret);
 595         (*jnienv)->CallVoidMethod(jnienv, ret->NavitGraphics, cid, (int)cb);
 596
 597         cid = (*jnienv)->GetMethodID(jnienv, ret->NavitGraphicsClass, "setKeypressCallback", "(I)V");
 598         if (cid == NULL) {
 599                 dbg(0,"no SetKeypressCallback method found\n");
 600                 return 0; /* exception thrown */
 601         }
 602         cb=callback_new_1(callback_cast(keypress_callback), ret);
 603         (*jnienv)->CallVoidMethod(jnienv, ret->NavitGraphics, cid, (int)cb);
 604
 605         if (!find_method(ret->NavitGraphicsClass, "draw_polyline", "(Landroid/graphics/Paint;[I)V", &ret->NavitGraphics_draw_polyline))
 606                 return 0;
 607         if (!find_method(ret->NavitGraphicsClass, "draw_polygon", "(Landroid/graphics/Paint;[I)V", &ret->NavitGraphics_draw_polygon))
 608                 return 0;
 609         if (!find_method(ret->NavitGraphicsClass, "draw_rectangle", "(Landroid/graphics/Paint;IIII)V", &ret->NavitGraphics_draw_rectangle))
 610                 return 0;
 611         if (!find_method(ret->NavitGraphicsClass, "draw_circle", "(Landroid/graphics/Paint;III)V", &ret->NavitGraphics_draw_circle))
 612                 return 0;
 613         if (!find_method(ret->NavitGraphicsClass, "draw_text", "(Landroid/graphics/Paint;IILjava/lang/String;III)V", &ret->NavitGraphics_draw_text))
 614                 return 0;
 615         if (!find_method(ret->NavitGraphicsClass, "draw_image", "(Landroid/graphics/Paint;IILandroid/graphics/Bitmap;)V", &ret->NavitGraphics_draw_image))
 616                 return 0;
 617         if (!find_method(ret->NavitGraphicsClass, "draw_mode", "(I)V", &ret->NavitGraphics_draw_mode))
 618                 return 0;
 619         if (!find_method(ret->NavitGraphicsClass, "draw_drag", "(II)V", &ret->NavitGraphics_draw_drag))
 620                 return 0;
 621         if (!find_method(ret->NavitGraphicsClass, "overlay_disable", "(I)V", &ret->NavitGraphics_overlay_disable))
 622                 return 0;
 623         if (!find_method(ret->NavitGraphicsClass, "overlay_resize", "(IIIIII)V", &ret->NavitGraphics_overlay_resize))
 624                 return 0;
 625         if (!find_method(ret->NavitGraphicsClass, "SetCamera", "(I)V", &ret->NavitGraphics_SetCamera))
 626                 return 0;
 627 #if 0
 628         set_activity(ret->NavitGraphics);
 629 #endif
 630         return 1;
 631 }
 632
 633 static int
 634 graphics_android_fullscreen(struct window *win, int on)
 635 {
 636         return 1;
 637 }
 638
 639 static jclass NavitClass;
 640 static jmethodID Navit_disableSuspend, Navit_exit;
 641
 642 static void
 643 graphics_android_disable_suspend(struct window *win)
 644 {
 645         dbg(1,"enter\n");
 646         (*jnienv)->CallVoidMethod(jnienv, android_activity, Navit_disableSuspend);
 647 }
 648
 649
 650 static struct graphics_priv *
 651 graphics_android_new(struct navit *nav, struct graphics_methods *meth, struct attr **attrs, struct callback_list *cbl)
 652 {
 653         struct graphics_priv *ret;
 654         struct attr *attr;
 655         int use_camera=0;
 656         if (!event_request_system("android","graphics_android"))
 657                 return NULL;
 658         ret=g_new0(struct graphics_priv, 1);
 659
 660         ret->cbl=cbl;
 661         *meth=graphics_methods;
 662         ret->win.priv=ret;
 663         ret->win.fullscreen=graphics_android_fullscreen;
 664         ret->win.disable_suspend=graphics_android_disable_suspend;
 665         if ((attr=attr_search(attrs, NULL, attr_use_camera))) {
 666                 use_camera=attr->u.num;
 667         }
 668         image_cache_hash = g_hash_table_new(g_str_hash, g_str_equal);
 669         if (graphics_android_init(ret, NULL, NULL, 0, 0, 0, 0, use_camera)) {
 670                 dbg(0,"returning %p\n",ret);
 671                 return ret;
 672         } else {
 673                 g_free(ret);
 674                 return NULL;
 675         }
 676 }
 677
 678 static struct graphics_priv *
 679 overlay_new(struct graphics_priv *gr, struct graphics_methods *meth, struct point *p, int w, int h, int alpha, int wraparound)
 680 {
 681         struct graphics_priv *ret=g_new0(struct graphics_priv, 1);
 682         *meth=graphics_methods;
 683         if (graphics_android_init(ret, gr, p, w, h, alpha, wraparound, 0)) {
 684                 dbg(0,"returning %p\n",ret);
 685                 return ret;
 686         } else {
 687                 g_free(ret);
 688                 return NULL;
 689         }
 690 }
 691
 692
 693 static void
 694 event_android_main_loop_run(void)
 695 {
 696         dbg(0,"enter\n");
 697 }
 698
 699 static void event_android_main_loop_quit(void)
 700 {
 701         dbg(0,"enter\n");
 702         (*jnienv)->CallVoidMethod(jnienv, android_activity, Navit_exit);
 703 }
 704
 705
 706 static jclass NavitTimeoutClass;
 707 static jmethodID NavitTimeout_init;
 708 static jmethodID NavitTimeout_remove;
 709
 710 static jclass NavitIdleClass;
 711 static jmethodID NavitIdle_init;
 712 static jmethodID NavitIdle_remove;
 713
 714 static jclass NavitWatchClass;
 715 static jmethodID NavitWatch_init;
 716 static jmethodID NavitWatch_remove;
 717
 718
 719 static void do_poll(JNIEnv *env, int fd, int cond)
 720 {
 721         struct pollfd pfd;
 722         pfd.fd=fd;
 723         dbg(1,"%p poll called for %d %d\n", fd, cond);
 724         switch ((enum event_watch_cond)cond) {
 725         case event_watch_cond_read:
 726                 pfd.events=POLLIN;
 727                 break;
 728         case event_watch_cond_write:
 729                 pfd.events=POLLOUT;
 730                 break;
 731         case event_watch_cond_except:
 732                 pfd.events=POLLERR;
 733                 break;
 734         default:
 735                 pfd.events=0;
 736         }
 737         pfd.revents=0;
 738         poll(&pfd, 1, -1);
 739 }
 740
 741 static struct event_watch *
 742 event_android_add_watch(void *h, enum event_watch_cond cond, struct callback *cb)
 743 {
 744         jobject ret;
 745         ret=(*jnienv)->NewObject(jnienv, NavitWatchClass, NavitWatch_init, (int)do_poll, (int) h, (int) cond, (int)cb);
 746         dbg(0,"result for %p,%d,%p=%p\n",h,cond,cb,ret);
 747         if (ret)
 748                 ret = (*jnienv)->NewGlobalRef(jnienv, ret);
 749         return (struct event_watch *)ret;
 750 }
 751
 752 static void
 753 event_android_remove_watch(struct event_watch *ev)
 754 {
 755         dbg(0,"enter %p\n",ev);
 756         if (ev) {
 757                 jobject obj=(jobject )ev;
 758                 (*jnienv)->CallVoidMethod(jnienv, obj, NavitWatch_remove);
 759                 (*jnienv)->DeleteGlobalRef(jnienv, obj);
 760         }
 761 }
 762
 763 struct event_timeout
 764 {
 765         void (*handle_timeout)(struct event_timeout *priv);
 766         jobject jni_timeout;
 767         int multi;
 768         struct callback *cb;
 769 };
 770
 771 static void
 772 event_android_remove_timeout(struct event_timeout *priv)
 773 {
 774         if (priv && priv->jni_timeout) {
 775                 (*jnienv)->CallVoidMethod(jnienv, priv->jni_timeout, NavitTimeout_remove);
 776                 (*jnienv)->DeleteGlobalRef(jnienv, priv->jni_timeout);
 777                 priv->jni_timeout = NULL;
 778         }
 779 }
 780
 781 static void event_android_handle_timeout(struct event_timeout *priv)
 782 {
 783         callback_call_0(priv->cb);
 784         if (!priv->multi)
 785                 event_android_remove_timeout(priv);
 786 }
 787
 788 static struct event_timeout *
 789 event_android_add_timeout(int timeout, int multi, struct callback *cb)
 790 {
 791         struct event_timeout *ret = g_new0(struct event_timeout, 1);
 792         ret->cb = cb;
 793         ret->multi = multi;
 794         ret->handle_timeout = event_android_handle_timeout;
 795         ret->jni_timeout = (*jnienv)->NewObject(jnienv, NavitTimeoutClass, NavitTimeout_init, timeout, multi, (int)ret);
 796         if (ret->jni_timeout)
 797                 ret->jni_timeout = (*jnienv)->NewGlobalRef(jnienv, ret->jni_timeout);
 798         return ret;
 799 }
 800
 801
 802 static struct event_idle *
 803 event_android_add_idle(int priority, struct callback *cb)
 804 {
 805 #if 0
 806         jobject ret;
 807         dbg(1,"enter\n");
 808         ret=(*jnienv)->NewObject(jnienv, NavitIdleClass, NavitIdle_init, (int)cb);
 809         dbg(1,"result for %p=%p\n",cb,ret);
 810         if (ret)
 811                 ret = (*jnienv)->NewGlobalRef(jnienv, ret);
 812         return (struct event_idle *)ret;
 813 #endif
 814         return (struct event_idle *)event_android_add_timeout(1, 1, cb);
 815 }
 816
 817 static void
 818 event_android_remove_idle(struct event_idle *ev)
 819 {
 820 #if 0
 821         dbg(1,"enter %p\n",ev);
 822         if (ev) {
 823                 jobject obj=(jobject )ev;
 824                 (*jnienv)->CallVoidMethod(jnienv, obj, NavitIdle_remove);
 825                 (*jnienv)->DeleteGlobalRef(jnienv, obj);
 826         }
 827 #endif
 828         event_android_remove_timeout((struct event_timeout *)ev);
 829 }
 830
 831 static void
 832 event_android_call_callback(struct callback_list *cb)
 833 {
 834         dbg(0,"enter\n");
 835 }
 836
 837 static struct event_methods event_android_methods = {
 838         event_android_main_loop_run,
 839         event_android_main_loop_quit,
 840         event_android_add_watch,
 841         event_android_remove_watch,
 842         event_android_add_timeout,
 843         event_android_remove_timeout,
 844         event_android_add_idle,
 845         event_android_remove_idle,
 846         event_android_call_callback,
 847 };
 848
 849 static struct event_priv *
 850 event_android_new(struct event_methods *meth)
 851 {
 852         dbg(0,"enter\n");
 853         if (!find_class_global("org/navitproject/navit/NavitTimeout", &NavitTimeoutClass))
 854                 return NULL;
 855         NavitTimeout_init = (*jnienv)->GetMethodID(jnienv, NavitTimeoutClass, "<init>", "(IZI)V");
 856         if (NavitTimeout_init == NULL)
 857                 return NULL;
 858         NavitTimeout_remove = (*jnienv)->GetMethodID(jnienv, NavitTimeoutClass, "remove", "()V");
 859         if (NavitTimeout_remove == NULL)
 860                 return NULL;
 861 #if 0
 862         if (!find_class_global("org/navitproject/navit/NavitIdle", &NavitIdleClass))
 863                 return NULL;
 864         NavitIdle_init = (*jnienv)->GetMethodID(jnienv, NavitIdleClass, "<init>", "(I)V");
 865         if (NavitIdle_init == NULL)
 866                 return NULL;
 867         NavitIdle_remove = (*jnienv)->GetMethodID(jnienv, NavitIdleClass, "remove", "()V");
 868         if (NavitIdle_remove == NULL)
 869                 return NULL;
 870 #endif
 871
 872         if (!find_class_global("org/navitproject/navit/NavitWatch", &NavitWatchClass))
 873                 return NULL;
 874         NavitWatch_init = (*jnienv)->GetMethodID(jnienv, NavitWatchClass, "<init>", "(IIII)V");
 875         if (NavitWatch_init == NULL)
 876                 return NULL;
 877         NavitWatch_remove = (*jnienv)->GetMethodID(jnienv, NavitWatchClass, "remove", "()V");
 878         if (NavitWatch_remove == NULL)
 879                 return NULL;
 880
 881         if (!find_class_global("org/navitproject/navit/Navit", &NavitClass))
 882                 return NULL;
 883         Navit_disableSuspend = (*jnienv)->GetMethodID(jnienv, NavitClass, "disableSuspend", "()V");
 884         if (Navit_disableSuspend == NULL)
 885                 return NULL;
 886         Navit_exit = (*jnienv)->GetMethodID(jnienv, NavitClass, "exit", "()V");
 887         if (Navit_exit == NULL)
 888                 return NULL;
 889         dbg(0,"ok\n");
 890         *meth=event_android_methods;
 891         return NULL;
 892 }
 893
 894
 895 void
 896 plugin_init(void)
 897 {
 898         dbg(0,"enter\n");
 899         plugin_register_graphics_type("android", graphics_android_new);
 900         plugin_register_event_type("android", event_android_new);
 901 }