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.width * 0.5;
  53         ui_mouse_y = vid.height * 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.width);
  79                 ui_mouse_y = bound(0, y, vid.height);
  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.width);
  90                 ui_mouse_y = bound(0, ui_mouse_y, vid.height);
  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,
 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         strncpy(it->name, itemname, 32);
 144         it->flags = 0;
 145         if (leftkey || rightkey || enterkey || mouseclick)
 146                 it->flags |= ITEM_CLICKABLE;
 147         if (pic)
 148                 it->flags |= ITEM_DRAWABLE;
 149         it->draw_x = x;
 150         it->draw_y = y;
 151         it->click_x = x + left;
 152         it->click_y = y + top;
 153         it->click_x2 = it->click_x + width;
 154         it->click_y2 = it->click_y + height;
 155         it->leftkey = leftkey;
 156         it->rightkey = rightkey;
 157         it->enterkey = enterkey;
 158         it->mouseclick = mouseclick;
 159         if (it->mouseclick == NULL)
 160                 it->mouseclick = (void *)it->enterkey;
 161         if (it->leftkey == NULL)
 162                 it->leftkey = it->enterkey;
 163         if (it->rightkey == NULL)
 164                 it->rightkey = it->enterkey;
 165         it->nativedata1 = nativedata1;
 166         it->nativedata2 = nativedata2;
 167 }
 168
 169 void ui_item_remove(ui_t *ui, char *basename, int number)
 170 {
 171         int i;
 172         ui_item_t *it;
 173         char itemname[32];
 174         snprintf(itemname, sizeof(itemname), "%s%04d", basename, number);
 175         for (it = ui->items, i = 0;i < ui->item_count;it++, i++)
 176                 if (it->name && !strncmp(itemname, it->name, 32))
 177                         break;
 178         if (i < ui->item_count)
 179                 it->name[0] = 0;
 180 }
 181
 182 ui_item_t *ui_hititem(float x, float y)
 183 {
 184         int i, j;
 185         ui_item_t *it;
 186         ui_t *ui;
 187         for (j = 0;j < MAX_UI_COUNT;j++)
 188                 if ((ui = ui_list[j]))
 189                         for (it = ui->items, i = 0;i < ui->item_count;it++, i++)
 190                                 if (it->name[0] && (it->flags & ITEM_CLICKABLE))
 191                                         if (x >= it->click_x && y >= it->click_y && x < it->click_x2 && y < it->click_y2)
 192                                                 return it;
 193         return NULL;
 194 }
 195
 196 int ui_uiactive(ui_t *ui)
 197 {
 198         int i;
 199         for (i = 0;i < MAX_UI_COUNT;i++)
 200                 if (ui_list[i] == ui)
 201                         return true;
 202         return false;
 203 }
 204
 205 void ui_activate(ui_t *ui, int yes)
 206 {
 207         int i;
 208         if (yes)
 209         {
 210                 if (ui_uiactive(ui))
 211                         return;
 212
 213                 for (i = 0;i < MAX_UI_COUNT;i++)
 214                 {
 215                         if (ui_list[i] == NULL)
 216                         {
 217                                 ui_list[i] = ui;
 218                                 return;
 219                         }
 220                 }
 221
 222                 Con_Printf("ui_activate: ran out of active ui list items\n");
 223         }
 224         else
 225         {
 226                 for (i = 0;i < MAX_UI_COUNT;i++)
 227                 {
 228                         if (ui_list[i] == ui)
 229                         {
 230                                 ui_list[i] = NULL;
 231                                 return;
 232                         }
 233                 }
 234         }
 235 }
 236
 237 int ui_isactive(void)
 238 {
 239         int j;
 240         ui_t *ui;
 241         if (ui_alive)
 242         {
 243                 for (j = 0;j < MAX_UI_COUNT;j++)
 244                         if ((ui = ui_list[j]))
 245                                 if (ui->item_count)
 246                                         return true;
 247         }
 248         return false;
 249 }
 250
 251 #define UI_QUEUE_SIZE 256
 252 static byte ui_keyqueue[UI_QUEUE_SIZE];
 253 static int ui_keyqueuepos = 0;
 254
 255 void ui_leftkeyupdate(int pressed)
 256 {
 257         static int key = false;
 258         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 259                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_LEFT;
 260         key = pressed;
 261 }
 262
 263 void ui_rightkeyupdate(int pressed)
 264 {
 265         static int key = false;
 266         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 267                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_RIGHT;
 268         key = pressed;
 269 }
 270
 271 void ui_upkeyupdate(int pressed)
 272 {
 273         static int key = false;
 274         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 275                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_UP;
 276         key = pressed;
 277 }
 278
 279 void ui_downkeyupdate(int pressed)
 280 {
 281         static int key = false;
 282         if (pressed && !key && ui_keyqueuepos < UI_QUEUE_SIZE)
 283                 ui_keyqueue[ui_keyqueuepos++] = UIKEY_DOWN;
 284         key = pressed;
 285 }
 286
 287 void ui_mousebuttonupdate(int button, int pressed)
 288 {
 289         if (button < 0 || button >= UI_MOUSEBUTTONS)
 290                 return;
 291         if (button == 0 && ui_mousebutton[button] && !pressed)
 292                 ui_mouseclick = true;
 293         ui_mousebutton[button] = pressed;
 294 }
 295
 296 void ui_update(void)
 297 {
 298         ui_item_t *startitem, *it;
 299         if (ui_alive)
 300         {
 301                 ui_mouse_x = bound(0, ui_mouse_x, vid.width);
 302                 ui_mouse_y = bound(0, ui_mouse_y, vid.height);
 303
 304                 if ((ui_active = ui_isactive()))
 305                 {
 306                         // validate currently selected item
 307                         if(ui_list[ui_keyui] == NULL)
 308                         {
 309                                 while (ui_list[ui_keyui] == NULL)
 310                                         ui_keyui = (ui_keyui + 1) % MAX_UI_COUNT;
 311                                 ui_keyitem = 0;
 312                         }
 313                         ui_keyitem = bound(0, ui_keyitem, ui_list[ui_keyui]->item_count - 1);
 314                         startitem = ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 315                         if ((ui_keyrealitem->flags & ITEM_CLICKABLE) == 0)
 316                         {
 317                                 do
 318                                 {
 319                                         // FIXME: cycle through UIs as well as items in a UI
 320                                         ui_keyitem = (ui_keyitem - 1) % ui_list[ui_keyui]->item_count - 1;
 321                                         ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 322                                 }
 323                                 while (ui_keyrealitem != startitem && (ui_keyrealitem->flags & ITEM_CLICKABLE) == 0);
 324                         }
 325
 326                         if (ui_keyqueuepos)
 327                         {
 328                                 int i;
 329                                 for (i = 0;i < ui_keyqueuepos;i++)
 330                                 {
 331                                         startitem = ui_keyrealitem;
 332                                         switch(ui_keyqueue[i])
 333                                         {
 334                                         case UIKEY_UP:
 335                                                 do
 336                                                 {
 337                                                         ui_keyitem--;
 338                                                         if (ui_keyitem < 0)
 339                                                         {
 340                                                                 do
 341                                                                         ui_keyui = (ui_keyui - 1) % MAX_UI_COUNT;
 342                                                                 while(ui_list[ui_keyui] == NULL);
 343                                                                 ui_keyitem = ui_list[ui_keyui]->item_count - 1;
 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_DOWN:
 350                                                 do
 351                                                 {
 352                                                         ui_keyitem++;
 353                                                         if (ui_keyitem >= ui_list[ui_keyui]->item_count)
 354                                                         {
 355                                                                 do
 356                                                                         ui_keyui = (ui_keyui + 1) % MAX_UI_COUNT;
 357                                                                 while(ui_list[ui_keyui] == NULL);
 358                                                                 ui_keyitem = 0;
 359                                                         }
 360                                                         ui_keyrealitem = &ui_list[ui_keyui]->items[ui_keyitem];
 361                                                 }
 362                                                 while (ui_keyrealitem != startitem && (ui_keyrealitem->flags & ITEM_CLICKABLE) == 0);
 363                                                 break;
 364                                         case UIKEY_LEFT:
 365                                                 if (ui_keyrealitem->leftkey)
 366                                                         ui_keyrealitem->leftkey(ui_keyrealitem->nativedata1, ui_keyrealitem->nativedata2, ui_keyrealitem->data1, ui_keyrealitem->data2);
 367                                                 break;
 368                                         case UIKEY_RIGHT:
 369                                                 if (ui_keyrealitem->rightkey)
 370                                                         ui_keyrealitem->rightkey(ui_keyrealitem->nativedata1, ui_keyrealitem->nativedata2, ui_keyrealitem->data1, ui_keyrealitem->data2);
 371                                                 break;
 372                                         case UIKEY_ENTER:
 373                                                 if (ui_keyrealitem->enterkey)
 374                                                         ui_keyrealitem->enterkey(ui_keyrealitem->nativedata1, ui_keyrealitem->nativedata2, ui_keyrealitem->data1, ui_keyrealitem->data2);
 375                                                 break;
 376                                         }
 377                                 }
 378                         }
 379                         ui_keyqueuepos = 0;
 380
 381                         if (ui_mouseclick && (it = ui_hititem(ui_mouse_x, ui_mouse_y)) && it->mouseclick)
 382                                 it->mouseclick(it->nativedata1, it->nativedata2, it->data1, it->data2, ui_mouse_x - it->click_x, ui_mouse_y - it->click_y);
 383         }
 384         }
 385         ui_mouseclick = false;
 386 }
 387
 388 void ui_draw(void)
 389 {
 390         int i, j;
 391         ui_item_t *it;
 392         ui_t *ui;
 393         if (ui_alive && ui_active)
 394         {
 395                 for (j = 0;j < MAX_UI_COUNT;j++)
 396                         if ((ui = ui_list[j]))
 397                                 if (ui->item_count)
 398                                         for (i = 0, it = ui->items;i < ui->item_count;i++, it++)
 399                                                 if (it->flags & ITEM_DRAWABLE)
 400                                                         Draw_Pic(it->draw_x, it->draw_y, it->draw_pic);
 401
 402                 if ((it = ui_hititem(ui_mouse_x, ui_mouse_y)))
 403                 {
 404                         Draw_AdditivePic(it->draw_x, it->draw_y, it->draw_pic);
 405                         if (ui_showname.value)
 406                                 Draw_String(ui_mouse_x, ui_mouse_y + 16, it->name, 9999);
 407         }
 408
 409                 it = ui_keyrealitem;
 410                 Draw_AdditivePic(it->draw_x, it->draw_y, it->draw_pic);
 411
 412 //              Draw_Pic(ui_mouse_x, ui_mouse_y, ui_mousepointer);
 413                 Draw_GenericPic(ui_mousepointertexture, 1, 1, 1, 1, ui_mouse_x, ui_mouse_y, 16, 16);
 414         }
 415 }