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 qpic_t *ui_mousepointer;
  26 static rtexture_t *ui_mousepointertexture;
  27
  28 static byte pointerimage[256] =
  29 {
  30         0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x02, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  31         0x02, 0x06, 0x07, 0x07, 0x07, 0x07, 0x06, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  32         0x02, 0x06, 0x05, 0x05, 0x05, 0x04, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  33         0x02, 0x06, 0x05, 0x05, 0x04, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  34         0x02, 0x06, 0x05, 0x04, 0x05, 0x06, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  35         0x02, 0x06, 0x04, 0x01, 0x04, 0x05, 0x06, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  36         0x02, 0x05, 0x01, 0xFF, 0x01, 0x04, 0x05, 0x06, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  37         0x02, 0x01, 0xFF, 0xFF, 0xFF, 0x01, 0x04, 0x05, 0x06, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  38         0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x04, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  39         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  40         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  41         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  42         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  43         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  44         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  45         0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  46 };
  47
  48 void ui_start(void)
  49 {
  50 //      ui_mousepointer = Draw_CachePic("ui/mousepointer.lmp");
  51         ui_mousepointertexture = R_LoadTexture("mousepointer", 16, 16, pointerimage, TEXF_ALPHA | TEXF_PRECACHE);
  52         ui_mouse_x = vid.conwidth * 0.5;
  53         ui_mouse_y = vid.conheight * 0.5;
  54         ui_alive = true;
  55 }
  56
  57 void ui_shutdown(void)
  58 {
  59 //      ui_mousepointer = NULL;
  60         ui_mousepointertexture = NULL;
  61         ui_alive = false;
  62 }
  63
  64 void ui_newmap(void)
  65 {
  66 }
  67
  68 void ui_init(void)
  69 {
  70         Cvar_RegisterVariable(&ui_showname);
  71         R_RegisterModule("UI", ui_start, ui_shutdown, ui_newmap);
  72 }
  73
  74 void ui_mouseupdate(float x, float y)
  75 {
  76         if (ui_alive)
  77         {
  78                 ui_mouse_x = bound(0, x, vid.conwidth);
  79                 ui_mouse_y = bound(0, y, vid.conheight);
  80         }
  81 }
  82
  83 void ui_mouseupdaterelative(float x, float y)
  84 {
  85         if (ui_alive)
  86         {
  87                 ui_mouse_x += x;
  88                 ui_mouse_y += y;
  89                 ui_mouse_x = bound(0, ui_mouse_x, vid.conwidth);
  90                 ui_mouse_y = bound(0, ui_mouse_y, vid.conheight);
  91         }
  92 }
  93
  94 ui_t *ui_create(void)
  95 {
  96         ui_t *ui;
  97         ui = qmalloc(sizeof(*ui));
  98         if (ui == NULL)
  99                 Sys_Error("ui_create: unable to allocate memory for new ui\n");
 100         memset(ui, 0, sizeof(*ui));
 101         return ui;
 102 }
 103
 104 void ui_free(ui_t *ui)
 105 {
 106         if (ui)
 107                 qfree(ui);
 108 }
 109
 110 void ui_clear(ui_t *ui)
 111 {
 112         ui->item_count = 0;
 113 }
 114
 115 void ui_item
 116 (
 117         ui_t *ui, char *basename, int number,
 118         float x, float y, qpic_t *pic, char *string,
 119         float left, float top, float width, float height,
 120         void(*leftkey)(void *nativedata1, void *nativedata2, float data1, float data2),
 121         void(*rightkey)(void *nativedata1, void *nativedata2, float data1, float data2),
 122         void(*enterkey)(void *nativedata1, void *nativedata2, float data1, float data2),
 123         void(*mouseclick)(void *nativedata1, void *nativedata2, float data1, float data2, float xfrac, float yfrac),
 124         void *nativedata1, void *nativedata2, float data1, float data2
 125 )
 126 {
 127         int i;
 128         ui_item_t *it;
 129         char itemname[32];
 130         snprintf(itemname, sizeof(itemname), "%s%04d", basename, number);
 131         for (it = ui->items, i = 0;i < ui->item_count;it++, i++)
 132                 if (it->name == NULL || !strncmp(itemname, it->name, 32))
 133                         break;
 134         if (i == ui->item_count)
 135         {
 136                 if (i == MAX_UI_ITEMS)
 137                 {
 138                         Con_Printf("ui_item: ran out of UI item slots\n");
 139                         return;
 140                 }
 141                 ui->item_count++;
 142         }
 143         memset(it, 0, sizeof(ui_item_t));
 144         strncpy(it->name, itemname, 32);
 145         it->flags = 0;
 146         if (pic || string)
 147         {
 148                 it->flags |= ITEM_DRAWABLE;
 149                 it->draw_pic = pic;
 150                 it->draw_string = string;
 151                 it->draw_x = x;
 152                 it->draw_y = y;
 153         }
 154         if (leftkey || rightkey || enterkey || mouseclick)
 155         {
 156                 it->flags |= ITEM_CLICKABLE;
 157                 it->click_x = x + left;
 158                 it->click_y = y + top;
 159                 it->click_x2 = it->click_x + width;
 160                 it->click_y2 = it->click_y + height;
 161                 it->leftkey = leftkey;
 162                 it->rightkey = rightkey;
 163                 it->enterkey = enterkey;
 164                 it->mouseclick = mouseclick;
 165                 if (it->mouseclick == NULL)
 166                         it->mouseclick = (void *)it->enterkey;
 167                 if (it->leftkey == NULL)
 168                         it->leftkey = it->enterkey;
 169                 if (it->rightkey == NULL)
 170                         it->rightkey = it->enterkey;
 171                 it->nativedata1 = nativedata1;
 172                 it->nativedata2 = nativedata2;
 173         }
 174 }
 175
 176 void ui_item_remove(ui_t *ui, char *basename, int number)
 177 {
 178         int i;
 179         ui_item_t *it;
 180         char itemname[32];
 181         snprintf(itemname, sizeof(itemname), "%s%04d", basename, number);
 182         for (it = ui->items, i = 0;i < ui->item_count;it++, i++)
 183                 if (it->name && !strncmp(itemname, it->name, 32))
 184                         break;
 185         if (i < ui->item_count)
 186                 it->name[0] = 0;
 187 }
 188
 189 ui_item_t *ui_hititem(float x, float y)
 190 {
 191         int i, j;
 192         ui_item_t *it;
 193         ui_t *ui;
 194         for (j = 0;j < MAX_UI_COUNT;j++)
 195                 if ((ui = ui_list[j]))
 196                         for (it = ui->items, i = 0;i < ui->item_count;it++, i++)
 197                                 if (it->name[0] && (it->flags & ITEM_CLICKABLE))
 198                                         if (x >= it->click_x && y >= it->click_y && x < it->click_x2 && y < it->click_y2)
 199                                                 return it;
 200         return NULL;
 201 }
 202
 203 int ui_uiactive(ui_t *ui)
 204 {
 205         int i;
 206         for (i = 0;i < MAX_UI_COUNT;i++)
 207                 if (ui_list[i] == ui)
 208                         return true;
 209         return false;
 210 }
 211
 212 void ui_activate(ui_t *ui, int yes)
 213 {
 214         int i;
 215         if (yes)
 216         {
 217                 if (ui_uiactive(ui))
 218                         return;
 219
 220                 for (i = 0;i < MAX_UI_COUNT;i++)
 221                 {
 222                         if (ui_list[i] == NULL)
 223                         {
 224                                 ui_list[i] = ui;
 225                                 return;
 226                         }
 227                 }
 228
 229                 Con_Printf("ui_activate: ran out of active ui list items\n");
 230         }
 231         else
 232         {
 233                 for (i = 0;i < MAX_UI_COUNT;i++)
 234                 {
 235                         if (ui_list[i] == ui)
 236                         {
 237                                 ui_list[i] = NULL;
 238                                 return;
 239                         }
 240                 }
 241         }
 242 }
 243
 244 int ui_isactive(void)
 245 {
 246         int j;
 247         ui_t *ui;
 248         if (ui_alive)
 249         {
 250                 for (j = 0;j < MAX_UI_COUNT;j++)
 251                         if ((ui = ui_list[j]))
 252                                 if (ui->item_count)
 253                                         return true;
 254         }
 255         return false;
 256 }
 257
 258 #define UI_QUEUE_SIZE 256
 259 static byte ui_keyqueue[UI_QUEUE_SIZE];
 260 static int ui_keyqueuepos = 0;
 261
 262 void ui_leftkeyupdate(int pressed)
 263 {
 264         static int key = false;
 265         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 266                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_LEFT;
 267         key = pressed;
 268 }
 269
 270 void ui_rightkeyupdate(int pressed)
 271 {
 272         static int key = false;
 273         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 274                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_RIGHT;
 275         key = pressed;
 276 }
 277
 278 void ui_upkeyupdate(int pressed)
 279 {
 280         static int key = false;
 281         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 282                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_UP;
 283         key = pressed;
 284 }
 285
 286 void ui_downkeyupdate(int pressed)
 287 {
 288         static int key = false;
 289         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 290                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_DOWN;
 291         key = pressed;
 292 }
 293
 294 void ui_mousebuttonupdate(int button, int pressed)
 295 {
 296         if (button < 0 || button >= UI_MOUSEBUTTONS)
 297                 return;
 298         if (button == 0 && ui_mousebutton[button] && !pressed)
 299                 ui_mouseclick = true;
 300         ui_mousebutton[button] = pressed;
 301 }
 302
 303 void ui_update(void)
 304 {
 305         ui_item_t *startitem, *it;
 306         if (ui_alive)
 307         {
 308                 ui_mouse_x = bound(0, ui_mouse_x, vid.conwidth);
 309                 ui_mouse_y = bound(0, ui_mouse_y, vid.conheight);
 310
 311                 if ((ui_active = ui_isactive()))
 312                 {
 313                         // validate currently selected item
 314                         if(ui_list[ui_keyui] == NULL)
 315                         {
 316                                 while (ui_list[ui_keyui] == NULL)
 317                                         ui_keyui = (ui_keyui + 1) % MAX_UI_COUNT;
 318                                 ui_keyitem = 0;
 319                         }
 320                         ui_keyitem = bound(0, ui_keyitem, ui_list[ui_keyui]->item_count - 1);
 321                         startitem = ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 322                         if ((ui_keyrealitem->flags & ITEM_CLICKABLE) == 0)
 323                         {
 324                                 do
 325                                 {
 326                                         // FIXME: cycle through UIs as well as items in a UI
 327                                         ui_keyitem = (ui_keyitem - 1) % ui_list[ui_keyui]->item_count - 1;
 328                                         ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 329                                 }
 330                                 while (ui_keyrealitem != startitem && (ui_keyrealitem->flags & ITEM_CLICKABLE) == 0);
 331                         }
 332
 333                         if (ui_keyqueuepos)
 334                         {
 335                                 int i;
 336                                 for (i = 0;i < ui_keyqueuepos;i++)
 337                                 {
 338                                         startitem = ui_keyrealitem;
 339                                         switch(ui_keyqueue[i])
 340                                         {
 341                                         case UIKEY_UP:
 342                                                 do
 343                                                 {
 344                                                         ui_keyitem--;
 345                                                         if (ui_keyitem < 0)
 346                                                         {
 347                                                                 do
 348                                                                         ui_keyui = (ui_keyui - 1) % MAX_UI_COUNT;
 349                                                                 while(ui_list[ui_keyui] == NULL);
 350                                                                 ui_keyitem = ui_list[ui_keyui]->item_count - 1;
 351                                                         }
 352                                                         ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 353                                                 }
 354                                                 while (ui_keyrealitem != startitem && (ui_keyrealitem->flags & ITEM_CLICKABLE) == 0);
 355                                                 break;
 356                                         case UIKEY_DOWN:
 357                                                 do
 358                                                 {
 359                                                         ui_keyitem++;
 360                                                         if (ui_keyitem >= ui_list[ui_keyui]->item_count)
 361                                                         {
 362                                                                 do
 363                                                                         ui_keyui = (ui_keyui + 1) % MAX_UI_COUNT;
 364                                                                 while(ui_list[ui_keyui] == NULL);
 365                                                                 ui_keyitem = 0;
 366                                                         }
 367                                                         ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 368                                                 }
 369                                                 while (ui_keyrealitem != startitem && (ui_keyrealitem->flags & ITEM_CLICKABLE) == 0);
 370                                                 break;
 371                                         case UIKEY_LEFT:
 372                                                 if (ui_keyrealitem->leftkey)
 373                                                         ui_keyrealitem->leftkey(ui_keyrealitem->nativedata1, ui_keyrealitem->nativedata2, ui_keyrealitem->data1, ui_keyrealitem->data2);
 374                                                 break;
 375                                         case UIKEY_RIGHT:
 376                                                 if (ui_keyrealitem->rightkey)
 377                                                         ui_keyrealitem->rightkey(ui_keyrealitem->nativedata1, ui_keyrealitem->nativedata2, ui_keyrealitem->data1, ui_keyrealitem->data2);
 378                                                 break;
 379                                         case UIKEY_ENTER:
 380                                                 if (ui_keyrealitem->enterkey)
 381                                                         ui_keyrealitem->enterkey(ui_keyrealitem->nativedata1, ui_keyrealitem->nativedata2, ui_keyrealitem->data1, ui_keyrealitem->data2);
 382                                                 break;
 383                                         }
 384                                 }
 385                         }
 386                         ui_keyqueuepos = 0;
 387
 388                         if (ui_mouseclick && (it = ui_hititem(ui_mouse_x, ui_mouse_y)) && it->mouseclick)
 389                                 it->mouseclick(it->nativedata1, it->nativedata2, it->data1, it->data2, ui_mouse_x - it->click_x, ui_mouse_y - it->click_y);
 390         }
 391         }
 392         ui_mouseclick = false;
 393 }
 394
 395 void ui_draw(void)
 396 {
 397         int i, j;
 398         ui_item_t *it;
 399         ui_t *ui;
 400         if (ui_alive && ui_active)
 401         {
 402                 for (j = 0;j < MAX_UI_COUNT;j++)
 403                         if ((ui = ui_list[j]))
 404                                 if (ui->item_count)
 405                                         for (i = 0, it = ui->items;i < ui->item_count;i++, it++)
 406                                                 if (it->flags & ITEM_DRAWABLE)
 407                                                 {
 408                                                         if (it->draw_pic)
 409                                                                 Draw_Pic(it->draw_x, it->draw_y, it->draw_pic);
 410                                                         if (it->draw_string)
 411                                                                 Draw_String(it->draw_x, it->draw_y, it->draw_string, 9999);
 412                                                 }
 413
 414                 if ((it = ui_hititem(ui_mouse_x, ui_mouse_y)))
 415                 {
 416                         if (it->draw_pic)
 417                                 Draw_AdditivePic(it->draw_x, it->draw_y, it->draw_pic);
 418                         if (it->draw_string)
 419                                 Draw_AdditiveString(it->draw_x, it->draw_y, it->draw_string, 9999);
 420                         if (ui_showname.value)
 421                                 Draw_String(ui_mouse_x, ui_mouse_y + 16, it->name, 9999);
 422         }
 423
 424                 it = ui_keyrealitem;
 425                 if (it->draw_pic)
 426                         Draw_AdditivePic(it->draw_x, it->draw_y, it->draw_pic);
 427                 if (it->draw_string)
 428                         Draw_AdditiveString(it->draw_x, it->draw_y, it->draw_string, 9999);
 429
 430 //              Draw_Pic(ui_mouse_x, ui_mouse_y, ui_mousepointer);
 431                 Draw_GenericPic(ui_mousepointertexture, 1, 1, 1, 1, ui_mouse_x, ui_mouse_y, 16, 16);
 432         }
 433 }