/* ScummVM - Scumm Interpreter * Copyright (C) 2004 The ScummVM project * * The ReInherit Engine is (C)2000-2003 by Daniel Balsom. * * 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. * * $Header$ * */ /* Description: Text / dialogue display management module Notes: */ #include "reinherit.h" #include "yslib.h" /* * Uses the following modules: \*--------------------------------------------------------------------------*/ #include "font_mod.h" /* * Begin module \*--------------------------------------------------------------------------*/ #include "text_mod.h" #include "text.h" namespace Saga { int TEXT_Draw(int font_id, R_SURFACE * ds, const char *string, int text_x, int text_y, int color, int effect_color, int flags) { int string_w; int string_len; int fit_w; const char *start_p; const char *search_p; const char *measure_p; const char *found_p; int len; int w; const char *end_p; int h; int wc; int w_total; int len_total; string_len = strlen(string); if (flags & FONT_CENTERED) { /* Text is centered... format output */ /* Enforce minimum and maximum center points for centered text */ if (text_x < R_TEXT_CENTERLIMIT) { text_x = R_TEXT_CENTERLIMIT; } if (text_x > ds->buf_w - R_TEXT_CENTERLIMIT) { text_x = ds->buf_w - R_TEXT_CENTERLIMIT; } if (text_x < (R_TEXT_MARGIN * 2)) { /* Text can't be centered if it's too close to the margin */ return R_FAILURE; } string_w = FONT_GetStringWidth(font_id, string, string_len, flags); if (text_x < (ds->buf_w / 2)) { /* Fit to right side */ fit_w = (text_x - R_TEXT_MARGIN) * 2; } else { /* Fit to left side */ fit_w = ((ds->buf_w - R_TEXT_MARGIN) - text_x) * 2; } if (fit_w >= string_w) { /* Entire string fits, draw it */ text_x = text_x - (string_w / 2); FONT_Draw(font_id, ds, string, string_len, text_x, text_y, color, effect_color, flags); return R_SUCCESS; } /* String won't fit on one line ... */ h = FONT_GetHeight(font_id); w_total = 0; len_total = 0; wc = 0; start_p = string; measure_p = string; search_p = string; end_p = string + string_len; for (;;) { found_p = strchr(search_p, ' '); if (found_p == NULL) { /* Ran to the end of the buffer */ len = end_p - measure_p; } else { len = found_p - measure_p; } w = FONT_GetStringWidth(font_id, measure_p, len, flags); measure_p = found_p; if ((w_total + w) > fit_w) { /* This word won't fit */ if (wc == 0) { /* The first word in the line didn't fit. abort */ return R_SUCCESS; } /* Wrap what we've got and restart */ FONT_Draw(font_id, ds, start_p, len_total, text_x - (w_total / 2), text_y, color, effect_color, flags); text_y += h + R_TEXT_LINESPACING; w_total = 0; len_total = 0; wc = 0; measure_p = search_p; start_p = search_p; } else { /* Word will fit ok */ w_total += w; len_total += len; wc++; if (found_p == NULL) { /* Since word hit NULL but fit, we are done */ FONT_Draw(font_id, ds, start_p, len_total, text_x - (w_total / 2), text_y, color, effect_color, flags); return R_SUCCESS; } search_p = measure_p + 1; } } /* End for (;;) */ } else { /* Text is not centered; No formatting required */ FONT_Draw(font_id, ds, string, string_len, text_x, text_y, color, effect_color, flags); } return R_SUCCESS; } R_TEXTLIST *TEXT_CreateList(void) { R_TEXTLIST *new_textlist; new_textlist = (R_TEXTLIST *)malloc(sizeof *new_textlist); if (new_textlist == NULL) { return NULL; } new_textlist->list = ys_dll_create(); if (new_textlist->list == NULL) { free(new_textlist); return NULL; } return new_textlist; } void TEXT_ClearList(R_TEXTLIST * tlist) { if (tlist != NULL) { ys_dll_delete_all(tlist->list); } return; } void TEXT_DestroyList(R_TEXTLIST * tlist) { if (tlist != NULL) { ys_dll_destroy(tlist->list); } free(tlist); return; } int TEXT_DrawList(R_TEXTLIST * textlist, R_SURFACE * ds) { R_TEXTLIST_ENTRY *entry_p; YS_DL_NODE *walk_p; assert((textlist != NULL) && (ds != NULL)); for (walk_p = ys_dll_head(textlist->list); walk_p != NULL; walk_p = ys_dll_next(walk_p)) { entry_p = (R_TEXTLIST_ENTRY *)ys_dll_get_data(walk_p); if (entry_p->display != 0) { TEXT_Draw(entry_p->font_id, ds, entry_p->string, entry_p->text_x, entry_p->text_y, entry_p->color, entry_p->effect_color, entry_p->flags); } } return R_SUCCESS; } int TEXT_ProcessList(R_TEXTLIST * textlist, long ms) { R_TEXTLIST_ENTRY *entry_p; YS_DL_NODE *walk_p; YS_DL_NODE *temp_p; for (walk_p = ys_dll_head(textlist->list); walk_p != NULL; walk_p = temp_p) { temp_p = ys_dll_next(walk_p); entry_p = (R_TEXTLIST_ENTRY *)ys_dll_get_data(walk_p); if (entry_p->flags & TEXT_TIMEOUT) { entry_p->time -= ms; if (entry_p->time <= 0) { ys_dll_delete(walk_p); } } } return R_SUCCESS; } R_TEXTLIST_ENTRY *TEXT_AddEntry(R_TEXTLIST * textlist, R_TEXTLIST_ENTRY * entry) { YS_DL_NODE *new_node = NULL; if (entry != NULL) { new_node = ys_dll_add_tail(textlist->list, entry, sizeof *entry); } return (new_node != NULL) ? (R_TEXTLIST_ENTRY *)new_node->data : NULL; } int TEXT_SetDisplay(R_TEXTLIST_ENTRY * entry, int val) { if (entry != NULL) { entry->display = !!val; return R_SUCCESS; } return R_FAILURE; } int TEXT_DeleteEntry(R_TEXTLIST * textlist, R_TEXTLIST_ENTRY * entry) { YS_DL_NODE *walk_p; if (entry == NULL) { return R_FAILURE; } for (walk_p = ys_dll_head(textlist->list); walk_p != NULL; walk_p = ys_dll_next(walk_p)) { if (entry == ys_dll_get_data(walk_p)) { ys_dll_delete(walk_p); break; } } return R_SUCCESS; } } // End of namespace Saga