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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/scummsys.h"
#include "zvision/scripting/effects/ttytext_effect.h"
#include "zvision/zvision.h"
#include "zvision/scripting/script_manager.h"
#include "zvision/graphics/render_manager.h"
#include "zvision/text/text.h"
#include "common/stream.h"
#include "common/file.h"
namespace ZVision {
ttyTextNode::ttyTextNode(ZVision *engine, uint32 key, const Common::String &file, const Common::Rect &r, int32 delay) :
ScriptingEffect(engine, key, SCRIPTING_EFFECT_TTYTXT),
_fnt(engine) {
_delay = delay;
_r = r;
_txtpos = 0;
_nexttime = 0;
_dx = 0;
_dy = 0;
Common::File *infile = _engine->getSearchManager()->openFile(file);
if (infile) {
while (!infile->eos()) {
Common::String asciiLine = readWideLine(*infile);
if (asciiLine.empty()) {
continue;
}
_txtbuf += asciiLine;
}
delete infile;
}
_img.create(_r.width(), _r.height(), _engine->_resourcePixelFormat);
_state._sharp = true;
_state.readAllStyles(_txtbuf);
_state.updateFontWithTextState(_fnt);
_engine->getScriptManager()->setStateValue(_key, 1);
}
ttyTextNode::~ttyTextNode() {
_engine->getScriptManager()->setStateValue(_key, 2);
_img.free();
}
bool ttyTextNode::process(uint32 deltaTimeInMillis) {
_nexttime -= deltaTimeInMillis;
if (_nexttime < 0) {
if (_txtpos < _txtbuf.size()) {
if (_txtbuf[_txtpos] == '<') {
int32 start = _txtpos;
int32 end = 0;
int16 ret = 0;
while (_txtbuf[_txtpos] != '>' && _txtpos < _txtbuf.size())
_txtpos++;
end = _txtpos;
if (start != -1) {
if ((end - start - 1) > 0) {
ret = _state.parseStyle(_txtbuf.c_str() + start + 1, end - start - 1);
}
}
if (ret & (TEXT_CHANGE_FONT_TYPE | TEXT_CHANGE_FONT_STYLE)) {
_state.updateFontWithTextState(_fnt);
} else if (ret & TEXT_CHANGE_NEWLINE) {
newline();
}
if (ret & TEXT_CHANGE_HAS_STATE_BOX) {
Common::String buf;
buf = Common::String::format("%d", _engine->getScriptManager()->getStateValue(_state._statebox));
for (uint8 j = 0; j < buf.size(); j++)
outchar(buf[j]);
}
_txtpos++;
} else {
int8 charsz = getUtf8CharSize(_txtbuf[_txtpos]);
uint16 chr = readUtf8Char(_txtbuf.c_str() + _txtpos);
if (chr == ' ') {
uint32 i = _txtpos + charsz;
uint16 width = _fnt.getCharWidth(chr);
while (i < _txtbuf.size() && _txtbuf[i] != ' ' && _txtbuf[i] != '<') {
int8 chsz = getUtf8CharSize(_txtbuf[i]);
uint16 uchr = readUtf8Char(_txtbuf.c_str() + _txtpos);
width += _fnt.getCharWidth(uchr);
i += chsz;
}
if (_dx + width > _r.width())
newline();
else
outchar(chr);
} else
outchar(chr);
_txtpos += charsz;
}
_nexttime = _delay;
_engine->getRenderManager()->blitSurfaceToBkg(_img, _r.left, _r.top);
} else
return stop();
}
return false;
}
void ttyTextNode::scroll() {
int32 scrl = 0;
while (_dy - scrl > _r.height() - _fnt.getFontHeight())
scrl += _fnt.getFontHeight();
int8 *pixels = (int8 *)_img.getPixels();
for (uint16 h = scrl; h < _img.h; h++)
memcpy(pixels + _img.pitch * (h - scrl), pixels + _img.pitch * h, _img.pitch);
_img.fillRect(Common::Rect(0, _img.h - scrl, _img.w, _img.h), 0);
_dy -= scrl;
}
void ttyTextNode::newline() {
_dy += _fnt.getFontHeight();
_dx = 0;
}
void ttyTextNode::outchar(uint16 chr) {
uint32 clr = _engine->_resourcePixelFormat.RGBToColor(_state._red, _state._green, _state._blue);
if (_dx + _fnt.getCharWidth(chr) > _r.width())
newline();
if (_dy + _fnt.getFontHeight() >= _r.height())
scroll();
_fnt.drawChar(&_img, chr, _dx, _dy, clr);
_dx += _fnt.getCharWidth(chr);
}
} // End of namespace ZVision
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