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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.
*
* $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/trunk/engines/sci/graphics/text16.cpp $
* $Id: text16.cpp 55178 2011-01-08 23:16:44Z thebluegr $
*
*/
#include "common/util.h"
#include "common/stack.h"
#include "graphics/primitives.h"
#include "sci/sci.h"
#include "sci/engine/kernel.h"
#include "sci/engine/selector.h"
#include "sci/engine/state.h"
#include "sci/graphics/cache.h"
#include "sci/graphics/font.h"
#include "sci/graphics/screen.h"
#include "sci/graphics/text32.h"
namespace Sci {
GfxText32::GfxText32(SegManager *segMan, GfxCache *fonts, GfxScreen *screen)
: _segMan(segMan), _cache(fonts), _screen(screen) {
}
GfxText32::~GfxText32() {
purgeCache();
}
void GfxText32::purgeCache() {
for (TextCache::iterator cacheIterator = _textCache.begin(); cacheIterator != _textCache.end(); cacheIterator++) {
delete[] cacheIterator->_value->surface;
delete cacheIterator->_value;
cacheIterator->_value = 0;
}
_textCache.clear();
}
void GfxText32::createTextBitmap(reg_t textObject) {
if (_textCache.size() >= MAX_CACHED_TEXTS)
purgeCache();
uint32 textId = (textObject.segment << 16) | textObject.offset;
if (_textCache.contains(textId)) {
// Delete the old entry
TextEntry *oldEntry = _textCache[textId];
delete[] oldEntry->surface;
delete oldEntry;
_textCache.erase(textId);
}
_textCache[textId] = createTextEntry(textObject);
}
// TODO: Finish this!
void GfxText32::drawTextBitmap(reg_t textObject, uint16 textX, uint16 textY, uint16 w) {
uint32 textId = (textObject.segment << 16) | textObject.offset;
if (!_textCache.contains(textId))
createTextBitmap(textObject);
TextEntry *entry = _textCache[textId];
// This draws text the "SCI0-SCI11" way. In SCI2, text is prerendered in kCreateTextBitmap
// TODO: rewrite this the "SCI2" way (i.e. implement the text buffer to draw inside kCreateTextBitmap)
GfxFont *font = _cache->getFont(readSelectorValue(_segMan, textObject, SELECTOR(font)));
bool dimmed = readSelectorValue(_segMan,textObject, SELECTOR(dimmed));
uint16 foreColor = readSelectorValue(_segMan, textObject, SELECTOR(fore));
const char *txt = entry->text.c_str();
int16 charCount;
while (*txt) {
charCount = GetLongest(txt, w, font);
if (charCount == 0)
break;
uint16 curX = textX;
for (int i = 0; i < charCount; i++) {
unsigned char curChar = txt[i];
font->draw(curChar, textY, curX, foreColor, dimmed);
curX += font->getCharWidth(curChar);
}
textY += font->getHeight();
txt += charCount;
while (*txt == ' ')
txt++; // skip over breaking spaces
}
// TODO: The "SCI2" way of font drawing. Currently buggy
/*
for (int x = textX; x < entry->width; x++) {
for (int y = textY; y < entry->height; y++) {
byte pixel = entry->surface[y * entry->width + x];
if (pixel)
_screen->putPixel(x, y, 1, pixel, 0, 0);
}
}
*/
}
TextEntry *GfxText32::getTextEntry(reg_t textObject) {
uint32 textId = (textObject.segment << 16) | textObject.offset;
if (!_textCache.contains(textId))
createTextBitmap(textObject);
return _textCache[textId];
}
// TODO: Finish this! Currently buggy.
TextEntry *GfxText32::createTextEntry(reg_t textObject) {
reg_t stringObject = readSelector(_segMan, textObject, SELECTOR(text));
// The object in the text selector of the item can be either a raw string
// or a Str object. In the latter case, we need to access the object's data
// selector to get the raw string.
if (_segMan->isHeapObject(stringObject))
stringObject = readSelector(_segMan, stringObject, SELECTOR(data));
const char *text = _segMan->getString(stringObject).c_str();
GfxFont *font = _cache->getFont(readSelectorValue(_segMan, textObject, SELECTOR(font)));
bool dimmed = readSelectorValue(_segMan, textObject, SELECTOR(dimmed));
uint16 foreColor = readSelectorValue(_segMan, textObject, SELECTOR(fore));
uint16 x = readSelectorValue(_segMan, textObject, SELECTOR(x));
uint16 y = readSelectorValue(_segMan, textObject, SELECTOR(y));
// Now get the bounding box from the associated plane
reg_t planeObject = readSelector(_segMan, textObject, SELECTOR(plane));
Common::Rect planeRect;
if (!planeObject.isNull()) {
planeRect.top = readSelectorValue(_segMan, planeObject, SELECTOR(top));
planeRect.left = readSelectorValue(_segMan, planeObject, SELECTOR(left));
planeRect.bottom = readSelectorValue(_segMan, planeObject, SELECTOR(bottom)) + 1;
planeRect.right = readSelectorValue(_segMan, planeObject, SELECTOR(right)) + 1;
} else {
planeRect.top = 0;
planeRect.left = 0;
planeRect.bottom = _screen->getHeight();
planeRect.right = _screen->getWidth();
}
TextEntry *newEntry = new TextEntry();
newEntry->object = stringObject;
newEntry->x = x;
newEntry->y = y;
newEntry->width = planeRect.width();
newEntry->height = planeRect.height();
newEntry->surface = new byte[newEntry->width * newEntry->height];
memset(newEntry->surface, 0, newEntry->width * newEntry->height);
newEntry->text = _segMan->getString(stringObject);
int16 maxTextWidth, charCount;
uint16 curX = 0, curY = 0;
maxTextWidth = 0;
while (*text) {
charCount = GetLongest(text, planeRect.width(), font);
if (charCount == 0)
break;
for (int i = 0; i < charCount; i++) {
unsigned char curChar = text[i];
font->drawToBuffer(curChar, curY, curX, foreColor, dimmed, newEntry->surface, newEntry->width, newEntry->height);
curX += font->getCharWidth(curChar);
}
curY += font->getHeight();
text += charCount;
while (*text == ' ')
text++; // skip over breaking spaces
}
return newEntry;
}
int16 GfxText32::GetLongest(const char *text, int16 maxWidth, GfxFont *font) {
uint16 curChar = 0;
int16 maxChars = 0, curCharCount = 0;
uint16 width = 0;
while (width <= maxWidth) {
curChar = (*(const byte *)text++);
switch (curChar) {
// We need to add 0xD, 0xA and 0xD 0xA to curCharCount and then exit
// which means, we split text like
// 'Mature, experienced software analyst available.' 0xD 0xA
// 'Bug installation a proven speciality. "No version too clean."' (normal game text, this is from lsl2)
// and 0xA '-------' 0xA (which is the official sierra subtitle separator)
// Sierra did it the same way.
case 0xD:
// Check, if 0xA is following, if so include it as well
if ((*(const unsigned char *)text) == 0xA)
curCharCount++;
// it's meant to pass through here
case 0xA:
curCharCount++;
// and it's also meant to pass through here
case 0:
return curCharCount;
case ' ':
maxChars = curCharCount; // return count up to (but not including) breaking space
break;
}
if (width + font->getCharWidth(curChar) > maxWidth)
break;
width += font->getCharWidth(curChar);
curCharCount++;
}
return maxChars;
}
} // End of namespace Sci
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