More 'cleanup' for kyra.

Moved scene object drawing into its own class (see animator.h and .cpp) (this needs some more cleanup!)
Moved text displaying into its own class (see text.h and .cpp)
Also moved timer code to timers.cpp and button code to gui.cpp.
Also changed wrong (c) information in debugger.h and debugger.cpp

svn-id: r19890

1 files changed, 240 insertions, 0 deletions

diff --git a/kyra/text.cpp b/kyra/text.cpp
new file mode 100644
index 0000000000..c9feadbb49
--- /dev/null
+++ b/kyra/text.cpp
@@ -0,0 +1,240 @@
+/* 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