navit/navit/osd.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 <glib.h>
  21 #include "debug.h"
  22 #include "plugin.h"
  23 #include "item.h"
  24 #include "color.h"
  25 #include "point.h"
  26 #include "navit.h"
  27 #include "graphics.h"
  28 #include "command.h"
  29 #include "callback.h"
  30 #include "osd.h"
  31
  32
  33 struct osd {
  34         struct osd_methods meth;
  35         struct osd_priv *priv;
  36         struct attr** osd_attrs;
  37 };
  38
  39 struct osd *
  40 osd_new(struct attr *parent, struct attr **attrs)
  41 {
  42         struct osd *o;
  43         struct osd_priv *(*new)(struct navit *nav, struct osd_methods *meth, struct attr **attrs);
  44         struct attr *type=attr_search(attrs, NULL, attr_type);
  45
  46         if (! type)
  47                 return NULL;
  48         new=plugin_get_osd_type(type->u.str);
  49         if (! new)
  50                 return NULL;
  51         o=g_new0(struct osd, 1);
  52         o->priv=new(parent->u.navit, &o->meth, attrs);
  53
  54                 o->osd_attrs = attr_list_dup(attrs);
  55
  56         return o;
  57 }
  58
  59 int
  60 osd_get_attr(struct osd *this_, enum attr_type type, struct attr *attr, struct attr_iter *iter)
  61 {
  62         return attr_generic_get_attr(this_->osd_attrs, NULL, type, attr, NULL);
  63 }
  64
  65 int
  66 osd_set_attr(struct osd *osd, struct attr* attr)
  67 {
  68         osd->osd_attrs=attr_generic_set_attr(osd->osd_attrs,attr);
  69         if(osd && osd->meth.set_attr) {
  70                 osd->meth.set_attr(osd->priv, attr);
  71                 return 1;
  72         }
  73         return 0;
  74 }
  75
  76 void
  77 osd_wrap_point(struct point *p, struct navit *nav)
  78 {
  79         if (p->x < 0)
  80                 p->x += navit_get_width(nav);
  81         if (p->y < 0)
  82                 p->y += navit_get_height(nav);
  83
  84 }
  85
  86 static void
  87 osd_evaluate_command(struct osd_item *this, struct navit *nav)
  88 {
  89         struct attr navit;
  90         navit.type=attr_navit;
  91         navit.u.navit=nav;
  92         dbg(0, "calling command '%s'\n", this->command);
  93         command_evaluate(&navit, this->command);
  94 }
  95
  96 void
  97 osd_std_click(struct osd_item *this, struct navit *nav, int pressed, int button, struct point *p)
  98 {
  99         struct point bp = this->p;
 100         if (!this->command || !this->command[0])
 101                 return;
 102         osd_wrap_point(&bp, nav);
 103         if ((p->x < bp.x || p->y < bp.y || p->x > bp.x + this->w || p->y > bp.y + this->h || !this->configured) && !this->pressed)
 104                 return;
 105         if (button != 1)
 106                 return;
 107         if (!!pressed == !!this->pressed)
 108                 return;
 109         if (navit_ignore_button(nav))
 110                 return;
 111         this->pressed = pressed;
 112         if (pressed && this->command)
 113                 osd_evaluate_command(this, nav);
 114 }
 115
 116 void
 117 osd_std_resize(struct osd_item *item)
 118 {
 119         graphics_overlay_resize(item->gr, &item->p, item->w, item->h, 65535, 1);
 120 }
 121
 122 static void
 123 osd_std_calculate_sizes(struct osd_item *item, struct osd_priv *priv, int w, int h)
 124 {
 125         struct attr vehicle_attr;
 126
 127         if (item->rel_w) {
 128                 item->w = (item->rel_w * w) / 100;
 129         }
 130
 131         if (item->rel_h) {
 132                 item->h = (item->rel_h * h) / 100;
 133         }
 134
 135         if (item->rel_x) {
 136                 item->p.x = (item->rel_x * w) / 100;
 137         }
 138
 139         if (item->rel_y) {
 140                 item->p.y = (item->rel_y * h) / 100;
 141         }
 142
 143         osd_std_resize(item);
 144         if (item->meth.draw) {
 145                 if (navit_get_attr(item->navit, attr_vehicle, &vehicle_attr, NULL)) {
 146                         item->meth.draw(priv, item->navit, vehicle_attr.u.vehicle);
 147                 }
 148         }
 149 }
 150
 151 static void
 152 osd_std_keypress(struct osd_item *item, struct navit *nav, char *key)
 153 {
 154 #if 0
 155         int i;
 156         dbg(0,"key=%s\n",key);
 157         for (i = 0 ; i < strlen(key) ; i++) {
 158                 dbg(0,"key:0x%02x\n",key[i]);
 159         }
 160         for (i = 0 ; i < strlen(item->accesskey) ; i++) {
 161                 dbg(0,"accesskey:0x%02x\n",item->accesskey[i]);
 162         }
 163 #endif
 164         if ( ! graphics_is_disabled(item->gr) && item->accesskey && key && !strcmp(key, item->accesskey))
 165                 osd_evaluate_command(item, nav);
 166 }
 167
 168 static void
 169 osd_std_reconfigure(struct osd_item *item, struct command_saved *cs)
 170 {
 171         if (!command_saved_error(cs)) {
 172                 graphics_overlay_disable(item->gr, !command_saved_get_int(cs));
 173         } else {
 174                 dbg(0, "Error in saved command: %i\n", command_saved_error(cs));
 175         }
 176 }
 177
 178 void
 179 osd_set_std_attr(struct attr **attrs, struct osd_item *item, int flags)
 180 {
 181         struct attr *attr;
 182
 183         item->flags=flags;
 184         item->osd_configuration=-1;
 185         item->color_white.r = 0xffff;
 186         item->color_white.g = 0xffff;
 187         item->color_white.b = 0xffff;
 188         item->color_white.a = 0xffff;
 189         item->text_color.r = 0xffff;
 190         item->text_color.g = 0xffff;
 191         item->text_color.b = 0xffff;
 192         item->text_color.a = 0xffff;
 193         if (flags & 1) {
 194                 item->color_bg.r = 0x0808;
 195                 item->color_bg.g = 0x0808;
 196                 item->color_bg.b = 0xf8f8;
 197                 item->color_bg.a = 0x0000;
 198         } else {
 199                 item->color_bg.r = 0x0;
 200                 item->color_bg.g = 0x0;
 201                 item->color_bg.b = 0x0;
 202                 item->color_bg.a = 0x5fff;
 203         }
 204
 205         attr=attr_search(attrs, NULL, attr_osd_configuration);
 206         if (attr)
 207                 item->osd_configuration = attr->u.num;
 208
 209         attr=attr_search(attrs, NULL, attr_enable_expression);
 210         if (attr) {
 211                 item->enable_cs = command_saved_new(attr->u.str, item->navit, NULL);
 212         }
 213
 214         attr = attr_search(attrs, NULL, attr_w);
 215         if (attr) {
 216                 if (attr->u.num > ATTR_REL_MAXABS) {
 217                         item->rel_w = attr->u.num - ATTR_REL_RELSHIFT;
 218                 } else {
 219                         item->rel_w = 0;
 220                         item->w = attr->u.num;
 221                 }
 222         }
 223
 224         attr = attr_search(attrs, NULL, attr_h);
 225         if (attr) {
 226                 if (attr->u.num > ATTR_REL_MAXABS) {
 227                         item->rel_h = attr->u.num - ATTR_REL_RELSHIFT;
 228                 } else {
 229                         item->rel_h = 0;
 230                         item->h = attr->u.num;
 231                 }
 232         }
 233
 234         attr = attr_search(attrs, NULL, attr_x);
 235         if (attr) {
 236                 if (attr->u.num > ATTR_REL_MAXABS) {
 237                         item->rel_x = attr->u.num - ATTR_REL_RELSHIFT;
 238                 } else {
 239                         item->rel_x = 0;
 240                         item->p.x = attr->u.num;
 241                 }
 242         }
 243
 244         attr = attr_search(attrs, NULL, attr_y);
 245         if (attr) {
 246                 if (attr->u.num > ATTR_REL_MAXABS) {
 247                         item->rel_y = attr->u.num - ATTR_REL_RELSHIFT;
 248                 } else {
 249                         item->rel_y = 0;
 250                         item->p.y = attr->u.num;
 251                 }
 252         }
 253
 254         attr = attr_search(attrs, NULL, attr_font_size);
 255         if (attr)
 256                 item->font_size = attr->u.num;
 257
 258         attr=attr_search(attrs, NULL, attr_background_color);
 259         if (attr)
 260                 item->color_bg=*attr->u.color;
 261         attr = attr_search(attrs, NULL, attr_command);
 262         if (attr)
 263                 item->command = g_strdup(attr->u.str);
 264         attr=attr_search(attrs, NULL, attr_text_color);
 265         if (attr)
 266                 item->text_color=*attr->u.color;
 267         attr=attr_search(attrs, NULL, attr_flags);
 268         if (attr)
 269                 item->attr_flags=attr->u.num;
 270         attr=attr_search(attrs, NULL, attr_accesskey);
 271         if (attr)
 272                 item->accesskey = g_strdup(attr->u.str);
 273         attr=attr_search(attrs, NULL, attr_font);
 274         if (attr)
 275                 item->font_name = g_strdup(attr->u.str);
 276
 277 }
 278 void
 279 osd_std_config(struct osd_item *item, struct navit *navit)
 280 {
 281         struct attr attr;
 282         dbg(1,"enter\n");
 283         if (item->enable_cs) {
 284                 item->reconfig_cb = callback_new_1(callback_cast(osd_std_reconfigure), item);
 285                 command_saved_set_cb(item->enable_cs, item->reconfig_cb);
 286
 287                 if (!command_saved_error(item->enable_cs)) {
 288                         item->configured = !! command_saved_get_int(item->enable_cs);
 289                 } else {
 290                         dbg(0, "Error in saved command: %i.\n", command_saved_error(item->enable_cs));
 291                 }
 292         } else {
 293                 if (!navit_get_attr(navit, attr_osd_configuration, &attr, NULL))
 294                         attr.u.num=-1;
 295                 item->configured = !!(attr.u.num & item->osd_configuration);
 296         }
 297         if (item->gr && !(item->flags & 16))
 298                 graphics_overlay_disable(item->gr, !item->configured);
 299 }
 300
 301 void
 302 osd_set_std_config(struct navit *nav, struct osd_item *item)
 303 {
 304         item->cb = callback_new_attr_2(callback_cast(osd_std_config), attr_osd_configuration, item, nav);
 305         navit_add_callback(nav, item->cb);
 306         osd_std_config(item, nav);
 307 }
 308
 309 void
 310 osd_set_std_graphic(struct navit *nav, struct osd_item *item, struct osd_priv *priv)
 311 {
 312         struct graphics *navit_gr;
 313
 314         navit_gr = navit_get_graphics(nav);
 315         item->gr = graphics_overlay_new(navit_gr, &item->p, item->w, item->h, 65535, 1);
 316
 317         item->graphic_bg = graphics_gc_new(item->gr);
 318         graphics_gc_set_foreground(item->graphic_bg, &item->color_bg);
 319         graphics_background_gc(item->gr, item->graphic_bg);
 320
 321         item->graphic_fg_white = graphics_gc_new(item->gr);
 322         graphics_gc_set_foreground(item->graphic_fg_white, &item->color_white);
 323
 324         if (item->flags & 2) {
 325                 item->font = graphics_named_font_new(item->gr, item->font_name, item->font_size, 1);
 326                 item->graphic_fg_text = graphics_gc_new(item->gr);
 327                 graphics_gc_set_foreground(item->graphic_fg_text, &item->text_color);
 328         }
 329
 330         osd_set_std_config(nav, item);
 331
 332         item->resize_cb = callback_new_attr_2(callback_cast(osd_std_calculate_sizes), attr_resize, item, priv);
 333         graphics_add_callback(navit_gr, item->resize_cb);
 334         dbg(0,"accesskey %s\n",item->accesskey);
 335         if (item->accesskey) {
 336                 item->keypress_cb=callback_new_attr_2(callback_cast(osd_std_keypress), attr_keypress, item, nav);
 337                 graphics_add_callback(navit_gr, item->keypress_cb);
 338         }
 339
 340 }
 341
 342 void
 343 osd_std_draw(struct osd_item *item)
 344 {
 345         struct point p[2];
 346         int flags=item->attr_flags;
 347
 348         graphics_draw_mode(item->gr, draw_mode_begin);
 349         p[0].x=0;
 350         p[0].y=0;
 351         graphics_draw_rectangle(item->gr, item->graphic_bg, p, item->w, item->h);
 352         p[1].x=item->w-1;
 353         p[1].y=0;
 354         if (flags & 1)
 355                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 356         p[0].x=item->w-1;
 357         p[0].y=item->h-1;
 358         if (flags & 2)
 359                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 360         p[1].x=0;
 361         p[1].y=item->h-1;
 362         if (flags & 4)
 363                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 364         p[0].x=0;
 365         p[0].y=0;
 366         if (flags & 8)
 367                 graphics_draw_lines(item->gr, item->graphic_fg_text, p, 2);
 368 }