Initial commit

engines/glk/advsys/glk_interface.cpp

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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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "glk/advsys/glk_interface.h"
+
+namespace Glk {
+namespace AdvSys {
+
+bool GlkInterface::initialize() {
+	_window = glk_window_open(nullptr, 0, 0, wintype_TextBuffer, 1);
+	return _window != nullptr;
+}
+
+void GlkInterface::print(const Common::String &msg) {
+	// Don't print out text if loading a savegame directly from the launcher, since we don't
+	// want any of the intro text displayed by the startup code to show
+	if (_saveSlot == -1)
+		glk_put_string_stream(glk_window_get_stream(_window), msg.c_str());
+}
+
+void GlkInterface::print(const Common::U32String &msg) {
+	// Don't print out text if loading a savegame directly from the launcher, since we don't
+	// want any of the intro text displayed by the startup code to show
+	if (_saveSlot == -1)
+		glk_put_string_stream_uni(glk_window_get_stream(_window), msg.u32_str());
+}
+
+void GlkInterface::print(int number) {
+	Common::String s = Common::String::format("%d", number);
+	print(s);
+}
+
+Common::String GlkInterface::readLine() {
+	event_t ev;
+	char line[200];
+
+	print(": ");
+
+	if (!_pendingLine.empty()) {
+		// The next input line has been manually provided, so return it
+		print(_pendingLine);
+		print("\n");
+
+		Common::String l = _pendingLine;
+		_pendingLine = "";
+		return l;
+	}
+
+	glk_request_line_event(_window, line, 199, 0);
+
+	do {
+		glk_select(&ev);
+		if (ev.type == evtype_Quit)
+			return "";
+		else if (ev.type == evtype_LineInput) {
+			line[ev.val1] = '\0';
+			return Common::String(line);
+		}
+	} while (!shouldQuit() && ev.type != evtype_Quit);
+
+	return "";
+}
+
+} // End of namespace AdvSys
+} // End of namespace Glk