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+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2005 The ScummVM project
+ *
+ * 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.
+ *
+ * $Header$
+ *
+ */
+
+#include "common/stdafx.h"
+
+#include "kyra/screen.h"
+#include "kyra/text.h"
+
+namespace Kyra {
+TextDisplayer::TextDisplayer(Screen *screen) {
+ _screen = screen;
+
+ _talkCoords.y = 0x88;
+ _talkCoords.x = 0;
+ _talkCoords.w = 0;
+ _talkMessageY = 0xC;
+ _talkMessageH = 0;
+ _talkMessagePrinted = false;
+}
+
+void TextDisplayer::setTalkCoords(uint16 y) {
+ debug(9, "TextDisplayer::setTalkCoords(%d)", y);
+ _talkCoords.y = y;
+}
+
+int TextDisplayer::getCenterStringX(const char *str, int x1, int x2) {
+ debug(9, "TextDisplayer::getCenterStringX('%s', %d, %d)", str, x1, x2);
+ _screen->_charWidth = -2;
+ Screen::FontId curFont = _screen->setFont(Screen::FID_8_FNT);
+ int strWidth = _screen->getTextWidth(str);
+ _screen->setFont(curFont);
+ _screen->_charWidth = 0;
+ int w = x2 - x1 + 1;
+ return x1 + (w - strWidth) / 2;
+}
+
+int TextDisplayer::getCharLength(const char *str, int len) {
+ debug(9, "TextDisplayer::getCharLength('%s', %d)", str, len);
+ int charsCount = 0;
+ if (*str) {
+ _screen->_charWidth = -2;
+ Screen::FontId curFont = _screen->setFont(Screen::FID_8_FNT);
+ int i = 0;
+ while (i <= len && *str) {
+ i += _screen->getCharWidth(*str++);
+ ++charsCount;
+ }
+ _screen->setFont(curFont);
+ _screen->_charWidth = 0;
+ }
+ return charsCount;
+}
+
+int TextDisplayer::dropCRIntoString(char *str, int offs) {
+ debug(9, "TextDisplayer::dropCRIntoString('%s', %d)", str, offs);
+ int pos = 0;
+ str += offs;
+ while (*str) {
+ if (*str == ' ') {
+ *str = '\r';
+ return pos;
+ }
+ ++str;
+ ++pos;
+ }
+ return 0;
+}
+
+char *TextDisplayer::preprocessString(const char *str) {
+ debug(9, "TextDisplayer::preprocessString('%s')", str);
+ assert(strlen(str) < sizeof(_talkBuffer) - 1);
+ strcpy(_talkBuffer, str);
+ char *p = _talkBuffer;
+ while (*p) {
+ if (*p == '\r') {
+ return _talkBuffer;
+ }
+ ++p;
+ }
+ p = _talkBuffer;
+ Screen::FontId curFont = _screen->setFont(Screen::FID_8_FNT);
+ _screen->_charWidth = -2;
+ int textWidth = _screen->getTextWidth(p);
+ _screen->_charWidth = 0;
+ if (textWidth > 176) {
+ if (textWidth > 352) {
+ int count = getCharLength(p, textWidth / 3);
+ int offs = dropCRIntoString(p, count);
+ p += count + offs;
+ _screen->_charWidth = -2;
+ textWidth = _screen->getTextWidth(p);
+ _screen->_charWidth = 0;
+ count = getCharLength(p, textWidth / 2);
+ dropCRIntoString(p, count);
+ } else {
+ int count = getCharLength(p, textWidth / 2);
+ dropCRIntoString(p, count);
+ }
+ }
+ _screen->setFont(curFont);
+ return _talkBuffer;
+}
+
+int TextDisplayer::buildMessageSubstrings(const char *str) {
+ debug(9, "TextDisplayer::buildMessageSubstrings('%s')", str);
+ int currentLine = 0;
+ int pos = 0;
+ while (*str) {
+ if (*str == '\r') {
+ assert(currentLine < TALK_SUBSTRING_NUM);
+ _talkSubstrings[currentLine * TALK_SUBSTRING_LEN + pos] = '\0';
+ ++currentLine;
+ pos = 0;
+ } else {
+ _talkSubstrings[currentLine * TALK_SUBSTRING_LEN + pos] = *str;
+ ++pos;
+ if (pos > TALK_SUBSTRING_LEN - 2) {
+ pos = TALK_SUBSTRING_LEN - 2;
+ }
+ }
+ ++str;
+ }
+ _talkSubstrings[currentLine * TALK_SUBSTRING_LEN + pos] = '\0';
+ return currentLine + 1;
+}
+
+int TextDisplayer::getWidestLineWidth(int linesCount) {
+ debug(9, "TextDisplayer::getWidestLineWidth(%d)", linesCount);
+ int maxWidth = 0;
+ Screen::FontId curFont = _screen->setFont(Screen::FID_8_FNT);
+ _screen->_charWidth = -2;
+ for (int l = 0; l < linesCount; ++l) {
+ int w = _screen->getTextWidth(&_talkSubstrings[l * TALK_SUBSTRING_LEN]);
+ if (maxWidth < w) {
+ maxWidth = w;
+ }
+ }
+ _screen->setFont(curFont);
+ _screen->_charWidth = 0;
+ return maxWidth;
+}
+
+void TextDisplayer::calcWidestLineBounds(int &x1, int &x2, int w, int cx) {
+ debug(9, "TextDisplayer::calcWidestLineBounds(%d, %d)", w, cx);
+ x1 = cx - w / 2;
+ if (x1 + w >= Screen::SCREEN_W - 12) {
+ x1 = Screen::SCREEN_W - 12 - w - 1;
+ } else if (x1 < 12) {
+ x1 = 12;
+ }
+ x2 = x1 + w + 1;
+}
+
+void TextDisplayer::restoreTalkTextMessageBkgd(int srcPage, int dstPage) {
+ debug(9, "TextDisplayer::restoreTalkTextMessageBkgd(%d, %d)", srcPage, dstPage);
+ if (_talkMessagePrinted) {
+ _talkMessagePrinted = false;
+ _screen->copyRegion(_talkCoords.x, _talkCoords.y, _talkCoords.x, _talkMessageY, _talkCoords.w, _talkMessageH, srcPage, dstPage);
+ }
+}
+
+void TextDisplayer::printTalkTextMessage(const char *text, int x, int y, uint8 color, int srcPage, int dstPage) {
+ debug(9, "TextDisplayer::printTalkTextMessage('%s', %d, %d, %d, %d, %d)", text, x, y, color, srcPage, dstPage);
+ char *str = preprocessString(text);
+ int lineCount = buildMessageSubstrings(str);
+ int top = y - lineCount * 10;
+ if (top < 0) {
+ top = 0;
+ }
+ _talkMessageY = top;
+ _talkMessageH = lineCount * 10;
+ int w = getWidestLineWidth(lineCount);
+ int x1, x2;
+ calcWidestLineBounds(x1, x2, w, x);
+ _talkCoords.x = x1;
+ _talkCoords.w = w + 2;
+ _screen->copyRegion(_talkCoords.x, _talkMessageY, _talkCoords.x, _talkCoords.y, _talkCoords.w, _talkMessageH, srcPage, dstPage);
+ int curPage = _screen->_curPage;
+ _screen->_curPage = srcPage;
+ for (int i = 0; i < lineCount; ++i) {
+ top = i * 10 + _talkMessageY;
+ char *msg = &_talkSubstrings[i * TALK_SUBSTRING_LEN];
+ int left = getCenterStringX(msg, x1, x2);
+ printText(msg, left, top, color, 0xC, 0);
+ }
+ _screen->_curPage = curPage;
+ _talkMessagePrinted = true;
+}
+
+void TextDisplayer::printText(const char *str, int x, int y, uint8 c0, uint8 c1, uint8 c2) {
+ debug(9, "TextDisplayer::printText('%s', %d, %d, %d, %d, %d)", str, x, y, c0, c1, c2);
+ uint8 colorMap[] = { 0, 15, 12, 12 };
+ colorMap[3] = c1;
+ _screen->setTextColor(colorMap, 0, 3);
+ Screen::FontId curFont = _screen->setFont(Screen::FID_8_FNT);
+ _screen->_charWidth = -2;
+ _screen->printText(str, x, y, c0, c2);
+ _screen->_charWidth = 0;
+ _screen->setFont(curFont);
+}
+
+void TextDisplayer::printCharacterText(char *text, int8 charNum, int charX) {
+ debug(9, "TextDisplayer::printCharacterText('%s', %d, %d)", text, charNum, charX);
+ uint8 colorTable[] = {0x0F, 0x9, 0x0C9, 0x80, 0x5, 0x81, 0x0E, 0xD8, 0x55, 0x3A, 0x3a};
+ int top, left, x1, x2, w, x;
+ char *msg;
+
+ uint8 color = colorTable[charNum];
+ text = preprocessString(text);
+ int lineCount = buildMessageSubstrings(text);
+ w = getWidestLineWidth(lineCount);
+ x = charX;
+ calcWidestLineBounds(x1, x2, w, x);
+
+ for (int i = 0; i < lineCount; ++i) {
+ top = i * 10 + _talkMessageY;
+ msg = &_talkSubstrings[i * TALK_SUBSTRING_LEN];
+ left = getCenterStringX(msg, x1, x2);
+ printText(msg, left, top, color, 0xC, 0);
+ }
+}
+} // end of namespace Kyra
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