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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