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/* 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.
*
* $Header$
*
*/
// Text / dialogue display management module
#include "saga/saga.h"
#include "saga/gfx.h"
#include "saga/font.h"
#include "saga/text.h"
namespace Saga {
int SagaEngine::textDraw(int font_id, 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 < TEXT_CENTERLIMIT) {
text_x = TEXT_CENTERLIMIT;
}
if (text_x > ds->w - TEXT_CENTERLIMIT) {
text_x = ds->w - TEXT_CENTERLIMIT;
}
if (text_x < (TEXT_MARGIN * 2)) {
// Text can't be centered if it's too close to the margin
return FAILURE;
}
string_w = _font->getStringWidth(font_id, string, string_len, flags);
if (text_x < (ds->w / 2)) {
// Fit to right side
fit_w = (text_x - TEXT_MARGIN) * 2;
} else {
// Fit to left side
fit_w = ((ds->w - 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 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 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 + 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 SUCCESS;
}
search_p = measure_p + 1;
}
}
} 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 SUCCESS;
}
TEXTLIST *SagaEngine::textCreateList() {
TEXTLIST *new_textlist;
new_textlist = new TEXTLIST;
if (new_textlist == NULL) {
return NULL;
}
return new_textlist;
}
void SagaEngine::textClearList(TEXTLIST *tlist) {
if (tlist != NULL) {
tlist->clear();
}
return;
}
void SagaEngine::textDestroyList(TEXTLIST *tlist) {
if (tlist != NULL) {
delete tlist;
}
return;
}
int SagaEngine::textDrawList(TEXTLIST *textlist, SURFACE *ds) {
TEXTLIST_ENTRY *entry_p;
assert((textlist != NULL) && (ds != NULL));
for (TEXTLIST::iterator texti = textlist->begin(); texti != textlist->end(); ++texti) {
entry_p = (TEXTLIST_ENTRY *)texti.operator->();
if (entry_p->display != 0) {
textDraw(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 SUCCESS;
}
int SagaEngine::textProcessList(TEXTLIST *textlist, long ms) {
TEXTLIST_ENTRY *entry_p;
for (TEXTLIST::iterator texti = textlist->begin(); texti != textlist->end(); ++texti) {
entry_p = (TEXTLIST_ENTRY *)texti.operator->();
if (entry_p->flags & TEXT_TIMEOUT) {
entry_p->time -= ms;
if (entry_p->time <= 0) {
texti=textlist->eraseAndPrev(texti);
}
}
}
return SUCCESS;
}
TEXTLIST_ENTRY *SagaEngine::textAddEntry(TEXTLIST *textlist, TEXTLIST_ENTRY *entry) {
if (entry != NULL) {
return textlist->pushBack(*entry).operator->();
}
return NULL;
}
int SagaEngine::textSetDisplay(TEXTLIST_ENTRY *entry, int val) {
if (entry != NULL) {
entry->display = !!val;
return SUCCESS;
}
return FAILURE;
}
int SagaEngine::textDeleteEntry(TEXTLIST *textlist, TEXTLIST_ENTRY *entry) {
if (entry == NULL) {
return FAILURE;
}
textlist->remove(entry);
return SUCCESS;
}
} // End of namespace Saga
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