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         (*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                 int id;
 212
 213                 dbg(1,"enter %s\n",path);
 214                 if (!strncmp(path,"res/drawable/",13)) {
 215                         jstring a=(*jnienv)->NewStringUTF(jnienv, "drawable");
 216                         char *path_noext=g_strdup(path+13);
 217                         char *pos=strrchr(path_noext, '.');
 218                         if (pos)
 219                                 *pos='\0';
 220                         dbg(1,"path_noext=%s\n",path_noext);
 221                         string = (*jnienv)->NewStringUTF(jnienv, path_noext);
 222                         g_free(path_noext);
 223                         id=(*jnienv)->CallIntMethod(jnienv, gra->Resources, gra->Resources_getIdentifier, string, a, gra->packageName);
 224                         dbg(1,"id=%d\n",id);
 225                         if (id)
 226                                 ret->Bitmap=(*jnienv)->CallStaticObjectMethod(jnienv, gra->BitmapFactoryClass, gra->BitmapFactory_decodeResource, gra->Resources, id);
 227                         (*jnienv)->DeleteLocalRef(jnienv, a);
 228                 } else {
 229                         string = (*jnienv)->NewStringUTF(jnienv, path);
 230                         ret->Bitmap=(*jnienv)->CallStaticObjectMethod(jnienv, gra->BitmapFactoryClass, gra->BitmapFactory_decodeFile, string);
 231                 }
 232                 dbg(1,"result=%p\n",ret->Bitmap);
 233                 if (ret->Bitmap) {
 234                         (*jnienv)->NewGlobalRef(jnienv, ret->Bitmap);
 235                         (*jnienv)->DeleteLocalRef(jnienv, ret->Bitmap);
 236                         ret->width=(*jnienv)->CallIntMethod(jnienv, ret->Bitmap, gra->Bitmap_getWidth);
 237                         ret->height=(*jnienv)->CallIntMethod(jnienv, ret->Bitmap, gra->Bitmap_getHeight);
 238                         dbg(1,"w=%d h=%d for %s\n",ret->width,ret->height,path);
 239                         ret->hot.x=ret->width/2;
 240                         ret->hot.y=ret->height/2;
 241                 } else {
 242                         g_free(ret);
 243                         ret=NULL;
 244                         dbg(0,"Failed to open %s\n",path);
 245                 }
 246                 (*jnienv)->DeleteLocalRef(jnienv, string);
 247                 g_hash_table_insert(image_cache_hash, g_strdup( path ),  (gpointer)ret );
 248         }
 249         if (ret) {
 250                 *w=ret->width;
 251                 *h=ret->height;
 252                 if (hot)
 253                         *hot=ret->hot;
 254         }
 255
 256         return ret;
 257 }
 258
 259 static void initPaint(struct graphics_priv *gra, struct graphics_gc_priv *gc)
 260 {
 261     float wf = gc->linewidth;
 262     (*jnienv)->CallVoidMethod(jnienv, gc->gra->Paint, gra->Paint_setStrokeWidth, wf);
 263     (*jnienv)->CallVoidMethod(jnienv, gc->gra->Paint, gra->Paint_setARGB, gc->a, gc->r, gc->g, gc->b);
 264 }
 265
 266 static void
 267 draw_lines(struct graphics_priv *gra, struct graphics_gc_priv *gc, struct point *p, int count)
 268 {
 269         jint pc[count*2];
 270         int i;
 271         jintArray points;
 272         if (count <= 0)
 273                 return;
 274         points = (*jnienv)->NewIntArray(jnienv,count*2);
 275         for (i = 0 ; i < count ; i++) {
 276                 pc[i*2]=p[i].x;
 277                 pc[i*2+1]=p[i].y;
 278         }
 279         initPaint(gra, gc);
 280         (*jnienv)->SetIntArrayRegion(jnienv, points, 0, count*2, pc);
 281         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_polyline, gc->gra->Paint, points);
 282         (*jnienv)->DeleteLocalRef(jnienv, points);
 283 }
 284
 285 static void
 286 draw_polygon(struct graphics_priv *gra, struct graphics_gc_priv *gc, struct point *p, int count)
 287 {
 288         jint pc[count*2];
 289         int i;
 290         jintArray points;
 291         if (count <= 0)
 292                 return;
 293         points = (*jnienv)->NewIntArray(jnienv,count*2);
 294         for (i = 0 ; i < count ; i++) {
 295                 pc[i*2]=p[i].x;
 296                 pc[i*2+1]=p[i].y;
 297         }
 298         initPaint(gra, gc);
 299         (*jnienv)->SetIntArrayRegion(jnienv, points, 0, count*2, pc);
 300         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_polygon, gc->gra->Paint, points);
 301         (*jnienv)->DeleteLocalRef(jnienv, points);
 302 }
 303
 304 static void
 305 draw_rectangle(struct graphics_priv *gra, struct graphics_gc_priv *gc, struct point *p, int w, int h)
 306 {
 307         initPaint(gra, gc);
 308         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_rectangle, gc->gra->Paint, p->x, p->y, w, h);
 309 }
 310
 311 static void
 312 draw_circle(struct graphics_priv *gra, struct graphics_gc_priv *gc, struct point *p, int r)
 313 {
 314         initPaint(gra, gc);
 315         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_circle, gc->gra->Paint, p->x, p->y, r);
 316 }
 317
 318
 319 static void
 320 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)
 321 {
 322         dbg(1,"enter %s\n", text);
 323         initPaint(gra, fg);
 324         jstring string = (*jnienv)->NewStringUTF(jnienv, text);
 325         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_text, fg->gra->Paint, p->x, p->y, string, font->size, dx, dy);
 326         (*jnienv)->DeleteLocalRef(jnienv, string);
 327 }
 328
 329 static void
 330 draw_image(struct graphics_priv *gra, struct graphics_gc_priv *fg, struct point *p, struct graphics_image_priv *img)
 331 {
 332         dbg(1,"enter %p\n",img);
 333         initPaint(gra, fg);
 334         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_image, fg->gra->Paint, p->x, p->y, img->Bitmap);
 335
 336 }
 337
 338 static void
 339 draw_image_warp(struct graphics_priv *gr, struct graphics_gc_priv *fg, struct point *p, int count, char *data)
 340 {
 341 }
 342
 343 static void
 344 draw_restore(struct graphics_priv *gr, struct point *p, int w, int h)
 345 {
 346 }
 347
 348 static void draw_drag(struct graphics_priv *gra, struct point *p)
 349 {
 350         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_drag, p ? p->x : 0, p ? p->y : 0);
 351 }
 352
 353 static void
 354 background_gc(struct graphics_priv *gr, struct graphics_gc_priv *gc)
 355 {
 356 }
 357
 358 static void
 359 draw_mode(struct graphics_priv *gra, enum draw_mode_num mode)
 360 {
 361         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_draw_mode, (int)mode);
 362 }
 363
 364 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);
 365
 366 static void *
 367 get_data(struct graphics_priv *this, const char *type)
 368 {
 369         if (strcmp(type,"window"))
 370                 return NULL;
 371         return &this->win;
 372 }
 373
 374 static void image_free(struct graphics_priv *gr, struct graphics_image_priv *priv)
 375 {
 376 }
 377
 378 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)
 379 {
 380         int len = g_utf8_strlen(text, -1);
 381         int xMin = 0;
 382         int yMin = 0;
 383         int yMax = 13*font->size/256;
 384         int xMax = 9*font->size*len/256;
 385
 386         ret[0].x = xMin;
 387         ret[0].y = -yMin;
 388         ret[1].x = xMin;
 389         ret[1].y = -yMax;
 390         ret[2].x = xMax;
 391         ret[2].y = -yMax;
 392         ret[3].x = xMax;
 393         ret[3].y = -yMin;
 394 }
 395
 396 static void overlay_disable(struct graphics_priv *gra, int disable)
 397 {
 398         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_overlay_disable, disable);
 399 }
 400
 401 static void overlay_resize(struct graphics_priv *gra, struct point *pnt, int w, int h, int alpha, int wraparound)
 402 {
 403         (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_overlay_resize, pnt ? pnt->x:0 , pnt ? pnt->y:0, w, h, alpha, wraparound);
 404 }
 405
 406 static int
 407 set_attr(struct graphics_priv *gra, struct attr *attr)
 408 {
 409         switch (attr->type) {
 410         case attr_use_camera:
 411                 (*jnienv)->CallVoidMethod(jnienv, gra->NavitGraphics, gra->NavitGraphics_SetCamera, attr->u.num);
 412                 return 1;
 413         default:
 414                 return 0;
 415         }
 416 }
 417
 418 static struct graphics_methods graphics_methods = {
 419         graphics_destroy,
 420         draw_mode,
 421         draw_lines,
 422         draw_polygon,
 423         draw_rectangle,
 424         draw_circle,
 425         draw_text,
 426         draw_image,
 427         draw_image_warp,
 428         draw_restore,
 429         draw_drag,
 430         font_new,
 431         gc_new,
 432         background_gc,
 433         overlay_new,
 434         image_new,
 435         get_data,
 436         image_free,
 437         get_text_bbox,
 438         overlay_disable,
 439         overlay_resize,
 440         set_attr,
 441 };
 442
 443 static void
 444 resize_callback(struct graphics_priv *gra, int w, int h)
 445 {
 446         dbg(0,"w=%d h=%d ok\n",w,h);
 447          callback_list_call_attr_2(gra->cbl, attr_resize, (void *)w, (void *)h);
 448 }
 449
 450 static void
 451 motion_callback(struct graphics_priv *gra, int x, int y)
 452 {
 453         struct point p;
 454         p.x=x;
 455         p.y=y;
 456         callback_list_call_attr_1(gra->cbl, attr_motion, (void *)&p);
 457 }
 458
 459 static void
 460 keypress_callback(struct graphics_priv *gra, char *s)
 461 {
 462         dbg(0,"enter %s\n",s);
 463         callback_list_call_attr_1(gra->cbl, attr_keypress, s);
 464 }
 465
 466 static void
 467 button_callback(struct graphics_priv *gra, int pressed, int button, int x, int y)
 468 {
 469         struct point p;
 470         p.x=x;
 471         p.y=y;
 472         callback_list_call_attr_3(gra->cbl, attr_button, (void *)pressed, (void *)button, (void *)&p);
 473 }
 474
 475
 476 static int
 477 set_activity(jobject graphics)
 478 {
 479         jclass ActivityClass;
 480         jmethodID cid;
 481
 482         ActivityClass = (*jnienv)->GetObjectClass(jnienv, android_activity);
 483         dbg(0,"at 5\n");
 484         if (ActivityClass == NULL) {
 485                 dbg(0,"no activity class found\n");
 486                 return 0;
 487         }
 488         dbg(0,"at 6\n");
 489         cid = (*jnienv)->GetMethodID(jnienv, ActivityClass, "setContentView", "(Landroid/view/View;)V");
 490         if (cid == NULL) {
 491                 dbg(0,"no setContentView method found\n");
 492                 return 0;
 493         }
 494         dbg(0,"at 7\n");
 495         (*jnienv)->CallVoidMethod(jnienv, android_activity, cid, graphics);
 496         dbg(0,"at 8\n");
 497         return 1;
 498 }
 499
 500 static int
 501 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)
 502 {
 503         struct callback *cb;
 504         jmethodID cid, Context_getPackageName;
 505
 506         dbg(0,"at 2 jnienv=%p\n",jnienv);
 507         if (!find_class_global("android/graphics/Paint", &ret->PaintClass))
 508                 return 0;
 509         if (!find_method(ret->PaintClass, "<init>", "(I)V", &ret->Paint_init))
 510                 return 0;
 511         if (!find_method(ret->PaintClass, "setARGB", "(IIII)V", &ret->Paint_setARGB))
 512                 return 0;
 513         if (!find_method(ret->PaintClass, "setStrokeWidth", "(F)V", &ret->Paint_setStrokeWidth))
 514                 return 0;
 515
 516         if (!find_class_global("android/graphics/BitmapFactory", &ret->BitmapFactoryClass))
 517                 return 0;
 518         if (!find_static_method(ret->BitmapFactoryClass, "decodeFile", "(Ljava/lang/String;)Landroid/graphics/Bitmap;", &ret->BitmapFactory_decodeFile))
 519                 return 0;
 520         if (!find_static_method(ret->BitmapFactoryClass, "decodeResource", "(Landroid/content/res/Resources;I)Landroid/graphics/Bitmap;", &ret->BitmapFactory_decodeResource))
 521                 return 0;
 522
 523         if (!find_class_global("android/graphics/Bitmap", &ret->BitmapClass))
 524                 return 0;
 525         if (!find_method(ret->BitmapClass, "getHeight", "()I", &ret->Bitmap_getHeight))
 526                 return 0;
 527         if (!find_method(ret->BitmapClass, "getWidth", "()I", &ret->Bitmap_getWidth))
 528                 return 0;
 529
 530         if (!find_class_global("android/content/Context", &ret->ContextClass))
 531                 return 0;
 532         if (!find_method(ret->ContextClass, "getResources", "()Landroid/content/res/Resources;", &ret->Context_getResources))
 533                 return 0;
 534
 535
 536         ret->Resources=(*jnienv)->CallObjectMethod(jnienv, android_activity, ret->Context_getResources);
 537         if (ret->Resources)
 538                 (*jnienv)->NewGlobalRef(jnienv, ret->Resources);
 539         if (!find_class_global("android/content/res/Resources", &ret->ResourcesClass))
 540                 return 0;
 541         if (!find_method(ret->ResourcesClass, "getIdentifier", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)I", &ret->Resources_getIdentifier))
 542                 return 0;
 543
 544         if (!find_method(ret->ContextClass, "getPackageName", "()Ljava/lang/String;", &Context_getPackageName))
 545                 return 0;
 546         ret->packageName=(*jnienv)->CallObjectMethod(jnienv, android_activity, Context_getPackageName);
 547         (*jnienv)->NewGlobalRef(jnienv, ret->packageName);
 548
 549         if (!find_class_global("org/navitproject/navit/NavitGraphics", &ret->NavitGraphicsClass))
 550                 return 0;
 551         dbg(0,"at 3\n");
 552         cid = (*jnienv)->GetMethodID(jnienv, ret->NavitGraphicsClass, "<init>", "(Landroid/app/Activity;Lorg/navitproject/navit/NavitGraphics;IIIIIII)V");
 553         if (cid == NULL) {
 554                 dbg(0,"no method found\n");
 555                 return 0; /* exception thrown */
 556         }
 557         dbg(0,"at 4 android_activity=%p\n",android_activity);
 558         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);
 559         dbg(0,"result=%p\n",ret->NavitGraphics);
 560         if (ret->NavitGraphics)
 561                 (*jnienv)->NewGlobalRef(jnienv, ret->NavitGraphics);
 562
 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                 (*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
 651 static struct graphics_priv *
 652 graphics_android_new(struct navit *nav, struct graphics_methods *meth, struct attr **attrs, struct callback_list *cbl)
 653 {
 654         struct graphics_priv *ret;
 655         struct attr *attr;
 656         int use_camera=0;
 657         if (!event_request_system("android","graphics_android"))
 658                 return NULL;
 659         ret=g_new0(struct graphics_priv, 1);
 660
 661         ret->cbl=cbl;
 662         *meth=graphics_methods;
 663         ret->win.priv=ret;
 664         ret->win.fullscreen=graphics_android_fullscreen;
 665         ret->win.disable_suspend=graphics_android_disable_suspend;
 666         if ((attr=attr_search(attrs, NULL, attr_use_camera))) {
 667                 use_camera=attr->u.num;
 668         }
 669         image_cache_hash = g_hash_table_new(g_str_hash, g_str_equal);
 670         if (graphics_android_init(ret, NULL, NULL, 0, 0, 0, 0, use_camera)) {
 671                 dbg(0,"returning %p\n",ret);
 672                 return ret;
 673         } else {
 674                 g_free(ret);
 675                 return NULL;
 676         }
 677 }
 678
 679 static struct graphics_priv *
 680 overlay_new(struct graphics_priv *gr, struct graphics_methods *meth, struct point *p, int w, int h, int alpha, int wraparound)
 681 {
 682         struct graphics_priv *ret=g_new0(struct graphics_priv, 1);
 683         *meth=graphics_methods;
 684         if (graphics_android_init(ret, gr, p, w, h, alpha, wraparound, 0)) {
 685                 dbg(0,"returning %p\n",ret);
 686                 return ret;
 687         } else {
 688                 g_free(ret);
 689                 return NULL;
 690         }
 691 }
 692
 693
 694 static void
 695 event_android_main_loop_run(void)
 696 {
 697         dbg(0,"enter\n");
 698 }
 699
 700 static void event_android_main_loop_quit(void)
 701 {
 702         dbg(0,"enter\n");
 703         (*jnienv)->CallVoidMethod(jnienv, android_activity, Navit_exit);
 704 }
 705
 706
 707 static jclass NavitTimeoutClass;
 708 static jmethodID NavitTimeout_init;
 709 static jmethodID NavitTimeout_remove;
 710
 711 static jclass NavitIdleClass;
 712 static jmethodID NavitIdle_init;
 713 static jmethodID NavitIdle_remove;
 714
 715 static jclass NavitWatchClass;
 716 static jmethodID NavitWatch_init;
 717 static jmethodID NavitWatch_remove;
 718
 719
 720 static void do_poll(JNIEnv *env, int fd, int cond)
 721 {
 722         struct pollfd pfd;
 723         pfd.fd=fd;
 724         dbg(1,"%p poll called for %d %d\n", fd, cond);
 725         switch ((enum event_watch_cond)cond) {
 726         case event_watch_cond_read:
 727                 pfd.events=POLLIN;
 728                 break;
 729         case event_watch_cond_write:
 730                 pfd.events=POLLOUT;
 731                 break;
 732         case event_watch_cond_except:
 733                 pfd.events=POLLERR;
 734                 break;
 735         default:
 736                 pfd.events=0;
 737         }
 738         pfd.revents=0;
 739         poll(&pfd, 1, -1);
 740 }
 741
 742 static struct event_watch *
 743 event_android_add_watch(void *h, enum event_watch_cond cond, struct callback *cb)
 744 {
 745         jobject ret;
 746         ret=(*jnienv)->NewObject(jnienv, NavitWatchClass, NavitWatch_init, (int)do_poll, (int) h, (int) cond, (int)cb);
 747         dbg(0,"result for %p,%d,%p=%p\n",h,cond,cb,ret);
 748         if (ret)
 749                 (*jnienv)->NewGlobalRef(jnienv, ret);
 750         return (struct event_watch *)ret;
 751 }
 752
 753 static void
 754 event_android_remove_watch(struct event_watch *ev)
 755 {
 756         dbg(0,"enter %p\n",ev);
 757         if (ev) {
 758                 jobject obj=(jobject )ev;
 759                 (*jnienv)->CallVoidMethod(jnienv, obj, NavitWatch_remove);
 760                 (*jnienv)->DeleteGlobalRef(jnienv, obj);
 761         }
 762 }
 763
 764 static struct event_timeout *
 765 event_android_add_timeout(int timeout, int multi, struct callback *cb)
 766 {
 767         jobject ret;
 768         ret=(*jnienv)->NewObject(jnienv, NavitTimeoutClass, NavitTimeout_init, timeout, multi, (int)cb);
 769         dbg(1,"result for %d,%d,%p=%p\n",timeout,multi,cb,ret);
 770         if (ret)
 771                 (*jnienv)->NewGlobalRef(jnienv, ret);
 772         return (struct event_timeout *)ret;
 773 }
 774
 775 static void
 776 event_android_remove_timeout(struct event_timeout *to)
 777 {
 778         dbg(1,"enter %p\n",to);
 779         if (to) {
 780                 jobject obj=(jobject )to;
 781                 (*jnienv)->CallVoidMethod(jnienv, obj, NavitTimeout_remove);
 782                 (*jnienv)->DeleteGlobalRef(jnienv, obj);
 783         }
 784 }
 785
 786
 787 static struct event_idle *
 788 event_android_add_idle(int priority, struct callback *cb)
 789 {
 790 #if 0
 791         jobject ret;
 792         dbg(1,"enter\n");
 793         ret=(*jnienv)->NewObject(jnienv, NavitIdleClass, NavitIdle_init, (int)cb);
 794         dbg(1,"result for %p=%p\n",cb,ret);
 795         if (ret)
 796                 (*jnienv)->NewGlobalRef(jnienv, ret);
 797         return (struct event_idle *)ret;
 798 #endif
 799         return (struct event_idle *)event_android_add_timeout(1, 1, cb);
 800 }
 801
 802 static void
 803 event_android_remove_idle(struct event_idle *ev)
 804 {
 805 #if 0
 806         dbg(1,"enter %p\n",ev);
 807         if (ev) {
 808                 jobject obj=(jobject )ev;
 809                 (*jnienv)->CallVoidMethod(jnienv, obj, NavitIdle_remove);
 810                 (*jnienv)->DeleteGlobalRef(jnienv, obj);
 811         }
 812 #endif
 813         event_android_remove_timeout((struct event_timeout *)ev);
 814 }
 815
 816 static void
 817 event_android_call_callback(struct callback_list *cb)
 818 {
 819         dbg(0,"enter\n");
 820 }
 821
 822 static struct event_methods event_android_methods = {
 823         event_android_main_loop_run,
 824         event_android_main_loop_quit,
 825         event_android_add_watch,
 826         event_android_remove_watch,
 827         event_android_add_timeout,
 828         event_android_remove_timeout,
 829         event_android_add_idle,
 830         event_android_remove_idle,
 831         event_android_call_callback,
 832 };
 833
 834 static struct event_priv *
 835 event_android_new(struct event_methods *meth)
 836 {
 837         dbg(0,"enter\n");
 838         if (!find_class_global("org/navitproject/navit/NavitTimeout", &NavitTimeoutClass))
 839                 return NULL;
 840         NavitTimeout_init = (*jnienv)->GetMethodID(jnienv, NavitTimeoutClass, "<init>", "(IZI)V");
 841         if (NavitTimeout_init == NULL)
 842                 return NULL;
 843         NavitTimeout_remove = (*jnienv)->GetMethodID(jnienv, NavitTimeoutClass, "remove", "()V");
 844         if (NavitTimeout_remove == NULL)
 845                 return NULL;
 846 #if 0
 847         if (!find_class_global("org/navitproject/navit/NavitIdle", &NavitIdleClass))
 848                 return NULL;
 849         NavitIdle_init = (*jnienv)->GetMethodID(jnienv, NavitIdleClass, "<init>", "(I)V");
 850         if (NavitIdle_init == NULL)
 851                 return NULL;
 852         NavitIdle_remove = (*jnienv)->GetMethodID(jnienv, NavitIdleClass, "remove", "()V");
 853         if (NavitIdle_remove == NULL)
 854                 return NULL;
 855 #endif
 856
 857         if (!find_class_global("org/navitproject/navit/NavitWatch", &NavitWatchClass))
 858                 return NULL;
 859         NavitWatch_init = (*jnienv)->GetMethodID(jnienv, NavitWatchClass, "<init>", "(IIII)V");
 860         if (NavitWatch_init == NULL)
 861                 return NULL;
 862         NavitWatch_remove = (*jnienv)->GetMethodID(jnienv, NavitWatchClass, "remove", "()V");
 863         if (NavitWatch_remove == NULL)
 864                 return NULL;
 865
 866         if (!find_class_global("org/navitproject/navit/Navit", &NavitClass))
 867                 return NULL;
 868         Navit_disableSuspend = (*jnienv)->GetMethodID(jnienv, NavitClass, "disableSuspend", "()V");
 869         if (Navit_disableSuspend == NULL)
 870                 return NULL;
 871         Navit_exit = (*jnienv)->GetMethodID(jnienv, NavitClass, "exit", "()V");
 872         if (Navit_exit == NULL)
 873                 return NULL;
 874         dbg(0,"ok\n");
 875         *meth=event_android_methods;
 876         return NULL;
 877 }
 878
 879
 880 void
 881 plugin_init(void)
 882 {
 883         dbg(0,"enter\n");
 884         plugin_register_graphics_type("android", graphics_android_new);
 885         plugin_register_event_type("android", event_android_new);
 886 }