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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 "graphics/macgui/mactext.h"
#include "graphics/font.h"
namespace Graphics {
MacText::MacText(Common::String s, const Graphics::Font *font, int fgcolor, int bgcolor, int maxWidth, TextAlign textAlignment) {
_str = s;
_font = font;
_fgcolor = fgcolor;
_bgcolor = bgcolor;
_maxWidth = maxWidth;
_textMaxWidth = 0;
_surface = nullptr;
_textAlignment = textAlignment;
_interLinear = 0; // 0 pixels between the lines by default
splitString(_str);
_fullRefresh = true;
}
void MacText::splitString(Common::String &str) {
const char *s = str.c_str();
Common::String tmp;
bool prevCR = false;
while (*s) {
if (*s == '\n' && prevCR) { // trean \r\n as one
prevCR = false;
s++;
continue;
}
if (*s == '\r')
prevCR = true;
if (*s == '\r' || *s == '\n') {
_textMaxWidth = MAX(_font->wordWrapText(tmp, _maxWidth, _text), _textMaxWidth);
tmp.clear();
s++;
continue;
}
tmp += *s;
s++;
}
if (tmp.size())
_textMaxWidth = MAX(_font->wordWrapText(tmp, _maxWidth, _text), _textMaxWidth);
}
void MacText::reallocSurface() {
int lineH = _font->getFontHeight() + _interLinear;
// round to closest 10
//TODO: work out why this rounding doesn't correctly fill the entire width
//int requiredH = (_text.size() + (_text.size() * 10 + 9) / 10) * lineH
int requiredH = _text.size() * lineH;
int surfW = _textMaxWidth;
if (!_surface) {
_surface = new ManagedSurface(surfW, requiredH);
return;
}
if (_surface->h < requiredH) {
// realloc surface and copy old content
ManagedSurface *n = new ManagedSurface(surfW, requiredH);
n->blitFrom(*_surface, Common::Point(0, 0));
delete _surface;
_surface = n;
}
}
void MacText::render() {
if (_fullRefresh) {
render(0, _text.size());
_fullRefresh = false;
}
}
void MacText::render(int from, int to) {
reallocSurface();
from = MAX<int>(0, from);
to = MIN<int>(to, _text.size());
int lineH = _font->getFontHeight() + _interLinear;
int y = from * lineH;
// Clear the screen
_surface->fillRect(Common::Rect(0, y, _surface->w, to * lineH), _bgcolor);
for (int i = from; i < to; i++) {
int xOffset = 0;
if (_textAlignment == kTextAlignRight)
xOffset = _textMaxWidth - _font->getStringWidth(_text[i]);
else if (_textAlignment == kTextAlignCenter)
xOffset = (_textMaxWidth / 2) - (_font->getStringWidth(_text[i]) / 2);
//TODO: _textMaxWidth, when -1, was not rendering ANY text.
_font->drawString(_surface, _text[i], xOffset, y, _maxWidth, _fgcolor);
y += _font->getFontHeight() + _interLinear;
}
}
void MacText::draw(ManagedSurface *g, int x, int y, int w, int h, int xoff, int yoff) {
render();
if (x + w < _surface->w || y + h < _surface->h) {
g->fillRect(Common::Rect(x, y, x + w, y + w), _bgcolor);
}
g->blitFrom(*_surface, Common::Rect(MIN<int>(_surface->w, x), MIN<int>(_surface->h, y),
MIN<int>(_surface->w, x + w), MIN<int>(_surface->w, y + w)),
Common::Point(xoff, yoff));
}
void MacText::appendText(Common::String str) {
int oldLen = _text.size();
splitString(str);
render(oldLen + 1, _text.size());
}
void MacText::replaceLastLine(Common::String str) {
int oldLen = MAX<int>(0, _text.size() - 1);
if (_text.size())
_text.pop_back();
splitString(str);
render(oldLen, _text.size());
}
} // End of namespace Graphics
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