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-rw-r--r--src/hu_lib.c357
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+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// $Id: hu_lib.c 4 2005-07-23 16:19:41Z fraggle $
+//
+// Copyright (C) 1993-1996 by id Software, Inc.
+//
+// This source is available for distribution and/or modification
+// only under the terms of the DOOM Source Code License as
+// published by id Software. All rights reserved.
+//
+// The source is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
+// for more details.
+//
+// $Log$
+// Revision 1.1 2005/07/23 16:19:55 fraggle
+// Initial revision
+//
+//
+// DESCRIPTION: heads-up text and input code
+//
+//-----------------------------------------------------------------------------
+
+static const char
+rcsid[] = "$Id: hu_lib.c 4 2005-07-23 16:19:41Z 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 )
+{
+
+ 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;
+}
+
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