ui.c

   1
   2 #include "quakedef.h"
   3
   4 cvar_t ui_showname = {0, "ui_showname", "0"};
   5
   6 #define ITEM_CLICKABLE 1
   7 #define ITEM_DRAWABLE 2
   8
   9 #define UIKEY_LEFT 1
  10 #define UIKEY_RIGHT 2
  11 #define UIKEY_UP 3
  12 #define UIKEY_DOWN 4
  13 #define UIKEY_ENTER 5
  14
  15 #define UI_MOUSEBUTTONS 3
  16
  17 static int ui_alive, ui_active;
  18 static float ui_mouse_x, ui_mouse_y;
  19 static int ui_mousebutton[UI_MOUSEBUTTONS], ui_mouseclick;
  20 static int ui_keyui, ui_keyitem;
  21 static ui_item_t *ui_keyrealitem;
  22
  23 static ui_t *ui_list[MAX_UI_COUNT];
  24
  25 static void ui_start(void)
  26 {
  27         ui_mouse_x = vid.conwidth * 0.5;
  28         ui_mouse_y = vid.conheight * 0.5;
  29         ui_alive = true;
  30 }
  31
  32 static void ui_shutdown(void)
  33 {
  34         ui_alive = false;
  35 }
  36
  37 static void ui_newmap(void)
  38 {
  39 }
  40
  41 static mempool_t *uimempool;
  42
  43 void ui_init(void)
  44 {
  45         uimempool = Mem_AllocPool("UI");
  46
  47         Cvar_RegisterVariable(&ui_showname);
  48
  49         R_RegisterModule("UI", ui_start, ui_shutdown, ui_newmap);
  50 }
  51
  52 void ui_mouseupdate(float x, float y)
  53 {
  54         if (ui_alive)
  55         {
  56                 ui_mouse_x = bound(0, x, vid.conwidth);
  57                 ui_mouse_y = bound(0, y, vid.conheight);
  58         }
  59 }
  60
  61 void ui_mouseupdaterelative(float x, float y)
  62 {
  63         if (ui_alive)
  64         {
  65                 ui_mouse_x += x;
  66                 ui_mouse_y += y;
  67                 ui_mouse_x = bound(0, ui_mouse_x, vid.conwidth);
  68                 ui_mouse_y = bound(0, ui_mouse_y, vid.conheight);
  69         }
  70 }
  71
  72 ui_t *ui_create(void)
  73 {
  74         ui_t *ui;
  75         ui = Mem_Alloc(uimempool, sizeof(*ui));
  76         if (ui == NULL)
  77                 Sys_Error("ui_create: unable to allocate memory for new ui\n");
  78         memset(ui, 0, sizeof(*ui));
  79         return ui;
  80 }
  81
  82 void ui_free(ui_t *ui)
  83 {
  84         if (ui)
  85                 Mem_Free(ui);
  86 }
  87
  88 void ui_clear(ui_t *ui)
  89 {
  90         ui->item_count = 0;
  91 }
  92
  93 void ui_item
  94 (
  95         ui_t *ui, char *basename, int number,
  96         float x, float y, char *picname, char *string,
  97         float left, float top, float width, float height,
  98         void(*leftkey)(void *nativedata1, void *nativedata2, float data1, float data2),
  99         void(*rightkey)(void *nativedata1, void *nativedata2, float data1, float data2),
 100         void(*enterkey)(void *nativedata1, void *nativedata2, float data1, float data2),
 101         void(*mouseclick)(void *nativedata1, void *nativedata2, float data1, float data2, float xfrac, float yfrac),
 102         void *nativedata1, void *nativedata2, float data1, float data2
 103 )
 104 {
 105         int i;
 106         ui_item_t *it;
 107         char itemname[32];
 108         snprintf(itemname, sizeof(itemname), "%s%04d", basename, number);
 109         for (it = ui->items, i = 0;i < ui->item_count;it++, i++)
 110                 if (it->name == NULL || !strncmp(itemname, it->name, 32))
 111                         break;
 112         if (i == ui->item_count)
 113         {
 114                 if (i == MAX_UI_ITEMS)
 115                 {
 116                         Con_Printf("ui_item: ran out of UI item slots\n");
 117                         return;
 118                 }
 119                 ui->item_count++;
 120         }
 121         memset(it, 0, sizeof(ui_item_t));
 122         strlcpy (it->name, itemname, sizeof (it->name));
 123         it->flags = 0;
 124         if (picname || string)
 125         {
 126                 it->flags |= ITEM_DRAWABLE;
 127                 it->draw_picname = picname;
 128                 it->draw_string = string;
 129                 it->draw_x = x;
 130                 it->draw_y = y;
 131         }
 132         if (leftkey || rightkey || enterkey || mouseclick)
 133         {
 134                 it->flags |= ITEM_CLICKABLE;
 135                 it->click_x = x + left;
 136                 it->click_y = y + top;
 137                 it->click_x2 = it->click_x + width;
 138                 it->click_y2 = it->click_y + height;
 139                 it->leftkey = leftkey;
 140                 it->rightkey = rightkey;
 141                 it->enterkey = enterkey;
 142                 it->mouseclick = mouseclick;
 143                 if (it->mouseclick == NULL)
 144                         it->mouseclick = (void *)it->enterkey;
 145                 if (it->leftkey == NULL)
 146                         it->leftkey = it->enterkey;
 147                 if (it->rightkey == NULL)
 148                         it->rightkey = it->enterkey;
 149                 it->nativedata1 = nativedata1;
 150                 it->nativedata2 = nativedata2;
 151         }
 152 }
 153
 154 void ui_item_remove(ui_t *ui, char *basename, int number)
 155 {
 156         int i;
 157         ui_item_t *it;
 158         char itemname[32];
 159         snprintf(itemname, sizeof(itemname), "%s%04d", basename, number);
 160         for (it = ui->items, i = 0;i < ui->item_count;it++, i++)
 161                 if (it->name && !strncmp(itemname, it->name, 32))
 162                         break;
 163         if (i < ui->item_count)
 164                 it->name[0] = 0;
 165 }
 166
 167 ui_item_t *ui_hititem(float x, float y)
 168 {
 169         int i, j;
 170         ui_item_t *it;
 171         ui_t *ui;
 172         for (j = 0;j < MAX_UI_COUNT;j++)
 173                 if ((ui = ui_list[j]))
 174                         for (it = ui->items, i = 0;i < ui->item_count;it++, i++)
 175                                 if (it->name[0] && (it->flags & ITEM_CLICKABLE))
 176                                         if (x >= it->click_x && y >= it->click_y && x < it->click_x2 && y < it->click_y2)
 177                                                 return it;
 178         return NULL;
 179 }
 180
 181 int ui_uiactive(ui_t *ui)
 182 {
 183         int i;
 184         for (i = 0;i < MAX_UI_COUNT;i++)
 185                 if (ui_list[i] == ui)
 186                         return true;
 187         return false;
 188 }
 189
 190 void ui_activate(ui_t *ui, int yes)
 191 {
 192         int i;
 193         if (yes)
 194         {
 195                 if (ui_uiactive(ui))
 196                         return;
 197
 198                 for (i = 0;i < MAX_UI_COUNT;i++)
 199                 {
 200                         if (ui_list[i] == NULL)
 201                         {
 202                                 ui_list[i] = ui;
 203                                 return;
 204                         }
 205                 }
 206
 207                 Con_Printf("ui_activate: ran out of active ui list items\n");
 208         }
 209         else
 210         {
 211                 for (i = 0;i < MAX_UI_COUNT;i++)
 212                 {
 213                         if (ui_list[i] == ui)
 214                         {
 215                                 ui_list[i] = NULL;
 216                                 return;
 217                         }
 218                 }
 219         }
 220 }
 221
 222 int ui_isactive(void)
 223 {
 224         int j;
 225         ui_t *ui;
 226         if (ui_alive)
 227         {
 228                 for (j = 0;j < MAX_UI_COUNT;j++)
 229                         if ((ui = ui_list[j]))
 230                                 if (ui->item_count)
 231                                         return true;
 232         }
 233         return false;
 234 }
 235
 236 #define UI_QUEUE_SIZE 256
 237 static qbyte ui_keyqueue[UI_QUEUE_SIZE];
 238 static int ui_keyqueuepos = 0;
 239
 240 void ui_leftkeyupdate(int pressed)
 241 {
 242         static int key = false;
 243         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 244                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_LEFT;
 245         key = pressed;
 246 }
 247
 248 void ui_rightkeyupdate(int pressed)
 249 {
 250         static int key = false;
 251         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 252                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_RIGHT;
 253         key = pressed;
 254 }
 255
 256 void ui_upkeyupdate(int pressed)
 257 {
 258         static int key = false;
 259         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 260                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_UP;
 261         key = pressed;
 262 }
 263
 264 void ui_downkeyupdate(int pressed)
 265 {
 266         static int key = false;
 267         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 268                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_DOWN;
 269         key = pressed;
 270 }
 271
 272 void ui_mousebuttonupdate(int button, int pressed)
 273 {
 274         if (button < 0 || button >= UI_MOUSEBUTTONS)
 275                 return;
 276         if (button == 0 && ui_mousebutton[button] && !pressed)
 277                 ui_mouseclick = true;
 278         ui_mousebutton[button] = pressed;
 279 }
 280
 281 void ui_update(void)
 282 {
 283         ui_item_t *startitem, *it;
 284         if (ui_alive)
 285         {
 286                 ui_mouse_x = bound(0, ui_mouse_x, vid.conwidth);
 287                 ui_mouse_y = bound(0, ui_mouse_y, vid.conheight);
 288
 289                 if ((ui_active = ui_isactive()))
 290                 {
 291                         // validate currently selected item
 292                         if(ui_list[ui_keyui] == NULL)
 293                         {
 294                                 while (ui_list[ui_keyui] == NULL)
 295                                         ui_keyui = (ui_keyui + 1) % MAX_UI_COUNT;
 296                                 ui_keyitem = 0;
 297                         }
 298                         ui_keyitem = bound(0, ui_keyitem, ui_list[ui_keyui]->item_count - 1);
 299                         startitem = ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 300                         if ((ui_keyrealitem->flags & ITEM_CLICKABLE) == 0)
 301                         {
 302                                 do
 303                                 {
 304                                         // FIXME: cycle through UIs as well as items in a UI
 305                                         ui_keyitem = (ui_keyitem - 1) % ui_list[ui_keyui]->item_count - 1;
 306                                         ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 307                                 }
 308                                 while (ui_keyrealitem != startitem && (ui_keyrealitem->flags & ITEM_CLICKABLE) == 0);
 309                         }
 310
 311                         if (ui_keyqueuepos)
 312                         {
 313                                 int i;
 314                                 for (i = 0;i < ui_keyqueuepos;i++)
 315                                 {
 316                                         startitem = ui_keyrealitem;
 317                                         switch(ui_keyqueue[i])
 318                                         {
 319                                         case UIKEY_UP:
 320                                                 do
 321                                                 {
 322                                                         ui_keyitem--;
 323                                                         if (ui_keyitem < 0)
 324                                                         {
 325                                                                 do
 326                                                                         ui_keyui = (ui_keyui - 1) % MAX_UI_COUNT;
 327                                                                 while(ui_list[ui_keyui] == NULL);
 328                                                                 ui_keyitem = ui_list[ui_keyui]->item_count - 1;
 329                                                         }
 330                                                         ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 331                                                 }
 332                                                 while (ui_keyrealitem != startitem && (ui_keyrealitem->flags & ITEM_CLICKABLE) == 0);
 333                                                 break;
 334                                         case UIKEY_DOWN:
 335                                                 do
 336                                                 {
 337                                                         ui_keyitem++;
 338                                                         if (ui_keyitem >= ui_list[ui_keyui]->item_count)
 339                                                         {
 340                                                                 do
 341                                                                         ui_keyui = (ui_keyui + 1) % MAX_UI_COUNT;
 342                                                                 while(ui_list[ui_keyui] == NULL);
 343                                                                 ui_keyitem = 0;
 344                                                         }
 345                                                         ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 346                                                 }
 347                                                 while (ui_keyrealitem != startitem && (ui_keyrealitem->flags & ITEM_CLICKABLE) == 0);
 348                                                 break;
 349                                         case UIKEY_LEFT:
 350                                                 if (ui_keyrealitem->leftkey)
 351                                                         ui_keyrealitem->leftkey(ui_keyrealitem->nativedata1, ui_keyrealitem->nativedata2, ui_keyrealitem->data1, ui_keyrealitem->data2);
 352                                                 break;
 353                                         case UIKEY_RIGHT:
 354                                                 if (ui_keyrealitem->rightkey)
 355                                                         ui_keyrealitem->rightkey(ui_keyrealitem->nativedata1, ui_keyrealitem->nativedata2, ui_keyrealitem->data1, ui_keyrealitem->data2);
 356                                                 break;
 357                                         case UIKEY_ENTER:
 358                                                 if (ui_keyrealitem->enterkey)
 359                                                         ui_keyrealitem->enterkey(ui_keyrealitem->nativedata1, ui_keyrealitem->nativedata2, ui_keyrealitem->data1, ui_keyrealitem->data2);
 360                                                 break;
 361                                         }
 362                                 }
 363                         }
 364                         ui_keyqueuepos = 0;
 365
 366                         if (ui_mouseclick && (it = ui_hititem(ui_mouse_x, ui_mouse_y)) && it->mouseclick)
 367                                 it->mouseclick(it->nativedata1, it->nativedata2, it->data1, it->data2, ui_mouse_x - it->click_x, ui_mouse_y - it->click_y);
 368         }
 369         }
 370         ui_mouseclick = false;
 371 }
 372
 373 void ui_draw(void)
 374 {
 375         int i, j;
 376         ui_item_t *it;
 377         ui_t *ui;
 378         if (ui_alive && ui_active)
 379         {
 380                 for (j = 0;j < MAX_UI_COUNT;j++)
 381                         if ((ui = ui_list[j]))
 382                                 if (ui->item_count)
 383                                         for (i = 0, it = ui->items;i < ui->item_count;i++, it++)
 384                                                 if (it->flags & ITEM_DRAWABLE)
 385                                                 {
 386                                                         if (it->draw_picname)
 387                                                                 DrawQ_Pic(it->draw_x, it->draw_y, it->draw_picname, 0, 0, 1, 1, 1, 1, 0);
 388                                                         if (it->draw_string)
 389                                                                 DrawQ_String(it->draw_x, it->draw_y, it->draw_string, 0, 8, 8, 1, 1, 1, 1, 0);
 390                                                 }
 391
 392                 if ((it = ui_hititem(ui_mouse_x, ui_mouse_y)))
 393                 {
 394                         if (it->draw_picname)
 395                                 DrawQ_Pic(it->draw_x, it->draw_y, it->draw_picname, 0, 0, 1, 1, 1, 1, DRAWFLAG_ADDITIVE);
 396                         if (it->draw_string)
 397                                 DrawQ_String(it->draw_x, it->draw_y, it->draw_string, 0, 8, 8, 1, 1, 1, 1, DRAWFLAG_ADDITIVE);
 398                         if (ui_showname.integer)
 399                                 DrawQ_String(ui_mouse_x, ui_mouse_y + 16, it->name, 0, 8, 8, 1, 1, 1, 1, 0);
 400         }
 401
 402                 it = ui_keyrealitem;
 403                 if (it->draw_picname)
 404                         DrawQ_Pic(it->draw_x, it->draw_y, it->draw_picname, 0, 0, 1, 1, 1, 1, DRAWFLAG_ADDITIVE);
 405                 if (it->draw_string)
 406                         DrawQ_String(it->draw_x, it->draw_y, it->draw_string, 0, 8, 8, 1, 1, 1, 1, DRAWFLAG_ADDITIVE);
 407
 408                 DrawQ_Pic(ui_mouse_x, ui_mouse_y, "ui/mousepointer.tga", 0, 0, 1, 1, 1, 1, 0);
 409         }
 410 }
 411