GLK: FROTZ: Merge Buffer class into Processor

1 files changed, 99 insertions, 0 deletions

diff --git a/engines/gargoyle/frotz/processor_buffer.cpp b/engines/gargoyle/frotz/processor_buffer.cpp
new file mode 100644
index 0000000000..be30bfe560
--- /dev/null
+++ b/engines/gargoyle/frotz/processor_buffer.cpp
@@ -0,0 +1,99 @@
+/* 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 "gargoyle/frotz/processor.h"
+#include "common/algorithm.h"
+#include "common/textconsole.h"
+
+namespace Gargoyle {
+namespace Frotz {
+
+// TODO: Replace these method stubs with correct calls
+void stream_char(zchar) {}
+void stream_word(const zchar *) {}
+void stream_new_line(void) {}
+
+void Processor::flush_buffer() {
+	/* Make sure we stop when flush_buffer is called from flush_buffer.
+	 * Note that this is difficult to avoid as we might print a newline
+	 * during flush_buffer, which might cause a newline interrupt, that
+	 * might execute any arbitrary opcode, which might flush the buffer.
+	 */
+	if (_locked || bufferEmpty())
+		return;
+
+	// Send the buffer to the output streams
+	_buffer[_bufPos] = '\0';
+	
+	_locked = true;
+	stream_word(_buffer);
+	_locked = false;
+
+	// Reset the buffer
+	_bufPos = 0;
+	_prevC = '\0';
+}
+
+void Processor::print_char(zchar c) {
+	static bool flag = false;
+
+	if (message || ostream_memory || enable_buffering) {
+		if (!flag) {
+			// Characters 0 and ZC_RETURN are special cases
+			if (c == ZC_RETURN) {
+				new_line();
+				return;
+			}
+			if (c == 0)
+				return;
+
+			// Flush the buffer before a whitespace or after a hyphen
+			if (c == ' ' || c == ZC_INDENT || c == ZC_GAP || (_prevC == '-' && c != '-'))
+				flush_buffer();
+
+			// Set the flag if this is part one of a style or font change
+			if (c == ZC_NEW_FONT || c == ZC_NEW_STYLE)
+				flag = true;
+
+			// Remember the current character code
+			_prevC = c;
+		} else {
+			flag = false;
+		}
+
+		// Insert the character into the buffer
+		_buffer[_bufPos++] = c;
+
+		if (_bufPos == TEXT_BUFFER_SIZE)
+			error("Text buffer overflow");
+	} else {
+		stream_char(c);
+	}
+}
+
+void Processor::new_line()  {
+	flush_buffer();
+	stream_new_line();
+}
+
+} // End of namespace Scott
+} // End of namespace Gargoyle