1 files changed, 224 insertions, 0 deletions
diff --git a/engines/dreamweb/print.cpp b/engines/dreamweb/print.cpp
new file mode 100644
index 0000000000..26084c35d1
--- /dev/null
+++ b/engines/dreamweb/print.cpp
@@ -0,0 +1,224 @@
+/* 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 "dreamweb/dreamweb.h"
+#include "engines/util.h"
+#include "graphics/surface.h"
+
+namespace DreamGen {
+
+void DreamGenContext::printboth(const Frame *charSet, uint16 *x, uint16 y, uint8 c, uint8 nextChar) {
+	uint16 newX = *x;
+	uint8 width, height;
+	printchar(charSet, &newX, y, c, nextChar, &width, &height);
+	multidump(*x, y, width, height);
+	*x = newX;
+}
+
+uint8 DreamGenContext::getnextword(const Frame *charSet, const uint8 *string, uint8 *totalWidth, uint8 *charCount) {
+	*totalWidth = 0;
+	*charCount = 0;
+	while(true) {
+		uint8 firstChar = *string;
+		++string;
+		++*charCount;
+		if ((firstChar == ':') || (firstChar == 0)) { //endall
+			*totalWidth += 6;
+			return 1;
+		}
+		if (firstChar == 32) { //endword
+			*totalWidth += 6;
+			return 0;
+		}
+		firstChar = engine->modifyChar(firstChar);
+		if (firstChar != 255) {
+			uint8 secondChar = *string;
+			uint8 width = charSet[firstChar - 32 + data.word(kCharshift)].width;
+			width = kernchars(firstChar, secondChar, width);
+			*totalWidth += width;
+		}
+	}
+}
+
+void DreamGenContext::printchar() {
+	uint16 x = di;
+	uint8 width, height;
+	printchar((const Frame *)ds.ptr(0, 0), &x, bx, al, ah, &width, &height);
+	di = x;
+	cl = width;
+	ch = height;
+}
+
+void DreamGenContext::printchar(const Frame *charSet, uint16* x, uint16 y, uint8 c, uint8 nextChar, uint8 *width, uint8 *height) {
+	if (c == 255)
+		return;
+	push(si);
+	push(di);
+	if (data.byte(kForeignrelease) != 0)
+		y -= 3;
+	uint16 tmp = c - 32 + data.word(kCharshift);
+	showframe(charSet, *x, y, tmp & 0x1ff, (tmp >> 8) & 0xfe, width, height);
+	di = pop();
+	si = pop();
+	_cmp(data.byte(kKerning), 0);
+	if (flags.z())
+		*width = kernchars(c, nextChar, *width);
+	(*x) += *width;
+}
+
+void DreamGenContext::printslow() {
+	al = printslow(es.ptr(si, 0), di, bx, dl, (bool)(dl & 1));
+}
+
+uint8 DreamGenContext::printslow(const uint8 *string, uint16 x, uint16 y, uint8 maxWidth, bool centered) {
+	data.byte(kPointerframe) = 1;
+	data.byte(kPointermode) = 3;
+	const Frame* charSet = (const Frame *)segRef(data.word(kCharset1)).ptr(0, 0);
+	do {
+		uint16 offset = x;
+		uint16 charCount = getnumber(charSet, string, maxWidth, centered, &offset);
+		do {
+			uint8 c0 = string[0];
+			uint8 c1 = string[1];
+			uint8 c2 = string[2];
+			c0 = engine->modifyChar(c0);
+			printboth(charSet, &offset, y, c0, c1);
+			if ((c1 == 0) || (c1 == ':')) {
+				return 0;
+			}
+			if (charCount != 1) {
+				c1 = engine->modifyChar(c1);
+				data.word(kCharshift) = 91;
+				uint16 offset2 = offset;
+				printboth(charSet, &offset2, y, c1, c2);
+				data.word(kCharshift) = 0;
+				for (int i=0; i<2; ++i) {
+					waitframes();
+					if (ax == 0)
+						continue;
+					if (ax != data.word(kOldbutton)) {
+						return 1;
+					}
+				}
+			}
+
+			++string;
+			--charCount;
+		} while (charCount);
+		y += 10;
+	} while (true);
+}
+
+void DreamGenContext::printdirect() {
+	uint16 y = bx;
+	uint16 initialSi = si;
+	const uint8 *initialString = es.ptr(si, 0);
+	const uint8 *string = initialString;
+	printdirect(&string, di, &y, dl, (bool)(dl & 1));
+	si = initialSi + (string - initialString);
+	bx = y;
+}
+
+void DreamGenContext::printdirect(const uint8** string, uint16 x, uint16 *y, uint8 maxWidth, bool centered) {
+	data.word(kLastxpos) = x;
+	const Frame *charSet = (const Frame *)segRef(data.word(kCurrentset)).ptr(0, 0);
+	while (true) {
+		uint16 offset = x;
+		uint8 charCount = getnumber(charSet, *string, maxWidth, centered, &offset);
+		uint16 i = offset;
+		do {
+			uint8 c = (*string)[0];
+			uint8 nextChar = (*string)[1];
+			++(*string);
+			if ((c == 0) || (c == ':')) {
+				return;
+			}
+			c = engine->modifyChar(c);
+			uint8 width, height;
+			printchar(charSet, &i, *y, c, nextChar, &width, &height);
+			data.word(kLastxpos) = i;
+			--charCount;
+		} while(charCount);
+		*y += data.word(kLinespacing);
+	}
+}
+
+void DreamGenContext::getnumber() {
+	uint16 offset = di;
+	cl = getnumber((Frame *)ds.ptr(0, 0), es.ptr(si, 0), dl, (bool)(dl & 1), &offset);
+	di = offset;
+}
+
+uint8 DreamGenContext::getnumber(const Frame *charSet, const uint8 *string, uint16 maxWidth, bool centered, uint16* offset) {
+	uint8 totalWidth = 0;
+	uint8 charCount = 0;
+	while (true) {
+		uint8 wordTotalWidth, wordCharCount;
+		uint8 done = getnextword(charSet, string, &wordTotalWidth, &wordCharCount);
+		string += wordCharCount;
+
+		if (done == 1) { //endoftext
+			ax = totalWidth + wordTotalWidth - 10;
+			if (ax < maxWidth) {
+				totalWidth += wordTotalWidth;
+				charCount += wordCharCount;
+			}
+
+			if (centered) {
+				ax = (maxWidth & 0xfe) + 2 + 20 - totalWidth;
+				ax /= 2;
+			} else {
+				ax = 0;
+			}
+			*offset += ax;
+			return charCount;
+		}
+		ax = totalWidth + wordTotalWidth - 10;
+		if (ax >= maxWidth) { //gotoverend
+			if (centered) {
+				ax = (maxWidth & 0xfe) - totalWidth + 20;
+				ax /= 2;
+			} else {
+				ax = 0;
+			}
+			*offset += ax;
+			return charCount;
+		}
+		totalWidth += wordTotalWidth;
+		charCount += wordCharCount;
+	}
+}
+
+uint8 DreamGenContext::kernchars(uint8 firstChar, uint8 secondChar, uint8 width) {
+	if ((firstChar == 'a') || (al == 'u')) {
+		if ((secondChar == 'n') || (secondChar == 't') || (secondChar == 'r') || (secondChar == 'i') || (secondChar == 'l'))
+			return width-1;
+	}
+	return width;
+}
+
+void DreamGenContext::kernchars() {
+	cl = kernchars(al, ah, cl);
+}
+
+} /*namespace dreamgen */
+