Initial commit

engines/glk/alan2/glkio.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/glk.h"
+#include "glk/alan2/alan2.h"
+#include "glk/alan2/glkio.h"
+#include "glk/alan2/main.h"
+
+namespace Glk {
+namespace Alan2 {
+
+winid_t glkMainWin;
+winid_t glkStatusWin;
+
+void glkio_printf(const char *fmt, ...) {
+	// If there's a savegame being loaded from the launcher, ignore any text out
+	if (g_vm->_saveSlot != -1)
+		return;
+
+	va_list argp;
+	va_start(argp, fmt);
+	if (glkMainWin) {
+		char buf[1024]; /* FIXME: buf size should be foolproof */
+		Common::vsprintf_s(buf, fmt, argp);
+		g_vm->glk_put_string(buf);
+	} else {
+		// assume stdio is available in this case only
+		Common::String str = Common::String::vformat(fmt, argp);
+		warning(fmt, argp);
+	}
+
+	va_end(argp);
+}
+
+/*======================================================================
+
+  readline()
+
+  Read a line from the user, with history and editing
+
+  */
+
+  /* 4f - length of user buffer should be used */
+Boolean readline(char usrbuf[], size_t maxlen) {
+	if (g_vm->_pendingLook) {
+		g_vm->_pendingLook = false;
+		glkio_printf("look\n");
+		Common::strcpy_s(usrbuf, maxlen, "look");
+	} else {
+		event_t event;
+		g_vm->glk_request_line_event(glkMainWin, usrbuf, maxlen, 0);
+
+		/* FIXME: buffer size should be infallible: all existing calls use 256 or
+		   80 character buffers, except parse which uses LISTLEN (currently 100)
+		 */
+		do {
+			g_vm->glk_select(&event);
+			if (evtype_Arrange == event.type)
+				statusline();
+			if (g_vm->shouldQuit())
+				return false;
+
+		} while (event.type != evtype_LineInput);
+
+		usrbuf[event.val1] = 0;
+	}
+
+	return TRUE;
+}
+
+
+} // End of namespace Alan2
+} // End of namespace Glk
+