ref: 719809774da7e540e540f164e572a38fe2932661
dir: /src/hu_lib.c/
// Emacs style mode select -*- C++ -*- //----------------------------------------------------------------------------- // // $Id: hu_lib.c 396 2006-02-27 17:57:55Z fraggle $ // // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 2005 Simon Howard // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 2 // of the License, or (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA // 02111-1307, USA. // // $Log$ // Revision 1.2 2005/07/23 16:44:55 fraggle // Update copyright to GNU GPL // // Revision 1.1.1.1 2005/07/23 16:19:55 fraggle // Initial import // // // DESCRIPTION: heads-up text and input code // //----------------------------------------------------------------------------- static const char rcsid[] = "$Id: hu_lib.c 396 2006-02-27 17:57:55Z fraggle $"; #include <ctype.h> #include "doomdef.h" #include "v_video.h" #include "m_swap.h" #include "hu_lib.h" #include "r_local.h" #include "r_draw.h" // boolean : whether the screen is always erased #define noterased viewwindowx extern boolean automapactive; // in AM_map.c void HUlib_init(void) { } void HUlib_clearTextLine(hu_textline_t* t) { t->len = 0; t->l[0] = 0; t->needsupdate = true; } void HUlib_initTextLine ( hu_textline_t* t, int x, int y, patch_t** f, int sc ) { t->x = x; t->y = y; t->f = f; t->sc = sc; HUlib_clearTextLine(t); } boolean HUlib_addCharToTextLine ( hu_textline_t* t, char ch ) { if (t->len == HU_MAXLINELENGTH) return false; else { t->l[t->len++] = ch; t->l[t->len] = 0; t->needsupdate = 4; return true; } } boolean HUlib_delCharFromTextLine(hu_textline_t* t) { if (!t->len) return false; else { t->l[--t->len] = 0; t->needsupdate = 4; return true; } } void HUlib_drawTextLine ( hu_textline_t* l, boolean drawcursor ) { int i; int w; int x; unsigned char c; // draw the new stuff x = l->x; for (i=0;i<l->len;i++) { c = toupper(l->l[i]); if (c != ' ' && c >= l->sc && c <= '_') { w = SHORT(l->f[c - l->sc]->width); if (x+w > SCREENWIDTH) break; V_DrawPatchDirect(x, l->y, FG, l->f[c - l->sc]); x += w; } else { x += 4; if (x >= SCREENWIDTH) break; } } // draw the cursor if requested if (drawcursor && x + SHORT(l->f['_' - l->sc]->width) <= SCREENWIDTH) { V_DrawPatchDirect(x, l->y, FG, l->f['_' - l->sc]); } } // sorta called by HU_Erase and just better darn get things straight void HUlib_eraseTextLine(hu_textline_t* l) { int lh; int y; int yoffset; static boolean lastautomapactive = true; // Only erases when NOT in automap and the screen is reduced, // and the text must either need updating or refreshing // (because of a recent change back from the automap) if (!automapactive && viewwindowx && l->needsupdate) { lh = SHORT(l->f[0]->height) + 1; for (y=l->y,yoffset=y*SCREENWIDTH ; y<l->y+lh ; y++,yoffset+=SCREENWIDTH) { if (y < viewwindowy || y >= viewwindowy + viewheight) R_VideoErase(yoffset, SCREENWIDTH); // erase entire line else { R_VideoErase(yoffset, viewwindowx); // erase left border R_VideoErase(yoffset + viewwindowx + viewwidth, viewwindowx); // erase right border } } } lastautomapactive = automapactive; if (l->needsupdate) l->needsupdate--; } void HUlib_initSText ( hu_stext_t* s, int x, int y, int h, patch_t** font, int startchar, boolean* on ) { int i; s->h = h; s->on = on; s->laston = true; s->cl = 0; for (i=0;i<h;i++) HUlib_initTextLine(&s->l[i], x, y - i*(SHORT(font[0]->height)+1), font, startchar); } void HUlib_addLineToSText(hu_stext_t* s) { int i; // add a clear line if (++s->cl == s->h) s->cl = 0; HUlib_clearTextLine(&s->l[s->cl]); // everything needs updating for (i=0 ; i<s->h ; i++) s->l[i].needsupdate = 4; } void HUlib_addMessageToSText ( hu_stext_t* s, char* prefix, char* msg ) { HUlib_addLineToSText(s); if (prefix) while (*prefix) HUlib_addCharToTextLine(&s->l[s->cl], *(prefix++)); while (*msg) HUlib_addCharToTextLine(&s->l[s->cl], *(msg++)); } void HUlib_drawSText(hu_stext_t* s) { int i, idx; hu_textline_t *l; if (!*s->on) return; // if not on, don't draw // draw everything for (i=0 ; i<s->h ; i++) { idx = s->cl - i; if (idx < 0) idx += s->h; // handle queue of lines l = &s->l[idx]; // need a decision made here on whether to skip the draw HUlib_drawTextLine(l, false); // no cursor, please } } void HUlib_eraseSText(hu_stext_t* s) { int i; for (i=0 ; i<s->h ; i++) { if (s->laston && !*s->on) s->l[i].needsupdate = 4; HUlib_eraseTextLine(&s->l[i]); } s->laston = *s->on; } void HUlib_initIText ( hu_itext_t* it, int x, int y, patch_t** font, int startchar, boolean* on ) { it->lm = 0; // default left margin is start of text it->on = on; it->laston = true; HUlib_initTextLine(&it->l, x, y, font, startchar); } // The following deletion routines adhere to the left margin restriction void HUlib_delCharFromIText(hu_itext_t* it) { if (it->l.len != it->lm) HUlib_delCharFromTextLine(&it->l); } void HUlib_eraseLineFromIText(hu_itext_t* it) { while (it->lm != it->l.len) HUlib_delCharFromTextLine(&it->l); } // Resets left margin as well void HUlib_resetIText(hu_itext_t* it) { it->lm = 0; HUlib_clearTextLine(&it->l); } void HUlib_addPrefixToIText ( hu_itext_t* it, char* str ) { while (*str) HUlib_addCharToTextLine(&it->l, *(str++)); it->lm = it->l.len; } // wrapper function for handling general keyed input. // returns true if it ate the key boolean HUlib_keyInIText ( hu_itext_t* it, unsigned char ch ) { ch = toupper(ch); if (ch >= ' ' && ch <= '_') HUlib_addCharToTextLine(&it->l, (char) ch); else if (ch == KEY_BACKSPACE) HUlib_delCharFromIText(it); else if (ch != KEY_ENTER) return false; // did not eat key return true; // ate the key } void HUlib_drawIText(hu_itext_t* it) { hu_textline_t *l = &it->l; if (!*it->on) return; HUlib_drawTextLine(l, true); // draw the line w/ cursor } void HUlib_eraseIText(hu_itext_t* it) { if (it->laston && !*it->on) it->l.needsupdate = 4; HUlib_eraseTextLine(&it->l); it->laston = *it->on; }