GLK: QUEST: Initial subengine commit

1 files changed, 240 insertions, 0 deletions

diff --git a/engines/glk/quest/geas_glk.cpp b/engines/glk/quest/geas_glk.cpp
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index 0000000000..8f48799d9a
--- /dev/null
+++ b/engines/glk/quest/geas_glk.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 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 "glk/quest/geas_glk.h"
+#include "glk/quest/geas_runner.h"
+#include "glk/quest/quest.h"
+#include "glk/quest/streams.h"
+#include "glk/windows.h"
+
+namespace Glk {
+namespace Quest {
+
+void glk_put_cstring(const char *);
+
+
+winid_t mainglkwin;
+winid_t inputwin;
+winid_t bannerwin;
+strid_t inputwinstream;
+
+const bool use_inputwindow = false;
+
+int ignore_lines;			// count of lines to ignore in game output
+
+void draw_banner() {
+	uint32 width;
+	uint32 index;
+	if (bannerwin) {
+		g_vm->glk_window_clear(bannerwin);
+		g_vm->glk_window_move_cursor(bannerwin, 0, 0);
+		strid_t stream = g_vm->glk_window_get_stream(bannerwin);
+
+		g_vm->glk_set_style_stream(stream, style_User1);
+		g_vm->glk_window_get_size(bannerwin, &width, NULL);
+		for (index = 0; index < width; index++)
+			g_vm->glk_put_char_stream(stream, ' ');
+		g_vm->glk_window_move_cursor(bannerwin, 1, 0);
+
+		if (g_vm->banner.empty())
+			g_vm->glk_put_string_stream(stream, (char *)"Geas 0.4");
+		else
+			g_vm->glk_put_string_stream(stream, (char *)g_vm->banner.c_str());
+	}
+}
+
+void glk_put_cstring(const char *s) {
+	/* The cast to remove const is necessary because g_vm->glk_put_string
+	 * receives a "char *" despite the fact that it could equally well use
+	 * "const char *". */
+	g_vm->glk_put_string((char *)s);
+}
+
+GeasResult GeasGlkInterface::print_normal(const String &s) {
+	if (!ignore_lines)
+		glk_put_cstring(s.c_str());
+	return r_success;
+}
+
+GeasResult GeasGlkInterface::print_newline() {
+	if (!ignore_lines)
+		glk_put_cstring("\n");
+	else
+		ignore_lines--;
+	return r_success;
+}
+
+GeasResult GeasGlkInterface::set_style(const GeasFontStyle &style) {
+	// Glk styles are defined before the window opens, so at this point we can only
+	// pick the most suitable style, not define a new one.
+	uint match;
+	if (style.is_italic && style.is_bold)
+		match = style_Alert;
+	else if (style.is_italic)
+		match = style_Emphasized;
+	else if (style.is_bold)
+		match = style_Subheader;
+	else if (style.is_underlined)
+		match = style_User2;
+	else
+		match = style_Normal;
+
+	g_vm->glk_set_style_stream(g_vm->glk_window_get_stream(mainglkwin), match);
+	return r_success;
+}
+
+void GeasGlkInterface::set_foreground(String s) {
+	if (s != "") {
+	}
+}
+
+void GeasGlkInterface::set_background(String s) {
+	if (s != "") {
+	}
+}
+
+/* Code lifted from GeasWindow.  Should be common.  Maybe in
+ * GeasInterface?
+ */
+String GeasGlkInterface::get_file(const String &fname) const {
+	Common::File ifs;
+	if (ifs.open(fname)) {
+		glk_put_cstring("Couldn't open ");
+		glk_put_cstring(fname.c_str());
+		g_vm->glk_put_char(0x0a);
+		return "";
+	}
+
+	// Read entirety of the file
+	char *buf = new char[ifs.size()];
+	ifs.read(buf, ifs.size());
+	
+	String result(buf, buf + ifs.size());
+	delete[] buf;
+
+	return result;
+}
+
+String GeasGlkInterface::get_string() {
+	char buf[200];
+	g_vm->glk_request_line_event(inputwin, buf, (sizeof buf) - 1, 0);
+	while (1) {
+		event_t ev;
+
+		g_vm->glk_select(&ev);
+
+		if (ev.type == evtype_LineInput && ev.window == inputwin) {
+			return String(buf, ev.val1);
+		}
+		/* All other events, including timer, are deliberately
+		 * ignored.
+		 */
+	}
+}
+
+uint GeasGlkInterface::make_choice(String label, Common::Array<String> v) {
+	size_t n;
+
+	g_vm->glk_window_clear(inputwin);
+
+	glk_put_cstring(label.c_str());
+	g_vm->glk_put_char(0x0a);
+	n = v.size();
+	for (size_t i = 0; i < n; ++i) {
+		StringStream t;
+		String s;
+		t << i + 1;
+		t >> s;
+		glk_put_cstring(s.c_str());
+		glk_put_cstring(": ");
+		glk_put_cstring(v[i].c_str());
+		glk_put_cstring("\n");
+	}
+
+	StringStream t;
+	String s;
+	String s1;
+	t << n;
+	t >> s;
+	s1 = "Choose [1-" + s + "]> ";
+	g_vm->glk_put_string_stream(inputwinstream, (char *)(s1.c_str()));
+
+	int choice = atoi(get_string().c_str());
+	if (choice < 1) {
+		choice = 1;
+	}
+	if ((size_t)choice > n) {
+		choice = n;
+	}
+
+	StringStream u;
+	u << choice;
+	u >> s;
+	s1 = "Chosen: " +  s + "\n";
+	glk_put_cstring(s1.c_str());
+
+	return choice - 1;
+}
+
+String GeasGlkInterface::absolute_name(String rel_name, String parent) const {
+	cerr << "absolute_name ('" << rel_name << "', '" << parent << "')\n";
+	if (parent[0] != '/')
+		return rel_name;
+
+	if (rel_name[0] == '/') {
+		cerr << "  --> " << rel_name << "\n";
+		return rel_name;
+	}
+	Common::Array<String> path;
+	uint dir_start = 1, dir_end;
+	while (dir_start < parent.length()) {
+		dir_end = dir_start;
+		while (dir_end < parent.length() && parent[dir_end] != '/')
+			dir_end ++;
+		path.push_back(parent.substr(dir_start, dir_end - dir_start));
+		dir_start = dir_end + 1;
+	}
+	path.pop_back();
+	dir_start = 0;
+	String tmp;
+	while (dir_start < rel_name.length()) {
+		dir_end = dir_start;
+		while (dir_end < rel_name.length() && rel_name[dir_end] != '/')
+			dir_end ++;
+		tmp = rel_name.substr(dir_start, dir_end - dir_start);
+		dir_start = dir_end + 1;
+		if (tmp == ".")
+			continue;
+		else if (tmp == "..")
+			path.pop_back();
+		else
+			path.push_back(tmp);
+	}
+	String rv;
+	for (uint i = 0; i < path.size(); i ++)
+		rv = rv + "/" + path[i];
+	cerr << " ---> " << rv << "\n";
+	return rv;
+}
+
+} // End of namespace Quest
+} // End of namespace Glk