Initial commit

engines/ultima/ultima4/controllers/read_choice_controller.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 "ultima/ultima4/controllers/read_choice_controller.h"
+
+namespace Ultima {
+namespace Ultima4 {
+
+
+ReadChoiceController::ReadChoiceController(const Common::String &choices) :
+		WaitableController<int>(-1) {
+	_choices = choices;
+}
+
+bool ReadChoiceController::keyPressed(int key) {
+	// Common::isUpper() accepts 1-byte characters, yet the modifier keys
+	// (ALT, SHIFT, ETC) produce values beyond 255
+	if ((key <= 0x7F) && (Common::isUpper(key)))
+		key = tolower(key);
+
+	_value = key;
+
+	if (_choices.empty() || _choices.findFirstOf(_value) < _choices.size()) {
+		// If the value is printable, display it
+		if (!Common::isSpace(key))
+			g_screen->screenMessage("%c", toupper(key));
+		doneWaiting();
+		return true;
+	}
+
+	return false;
+}
+
+void ReadChoiceController::keybinder(KeybindingAction action) {
+	if (action == KEYBIND_ESCAPE && _choices.contains('\x1B')) {
+		_value = 27;
+		doneWaiting();
+	} else {
+		WaitableController<int>::keybinder(action);
+	}
+}
+
+
+char ReadChoiceController::get(const Common::String &choices, EventHandler *eh) {
+	if (!eh)
+		eh = eventHandler;
+
+	ReadChoiceController ctrl(choices);
+	eh->pushController(&ctrl);
+	return ctrl.waitFor();
+}
+
+} // End of namespace Ultima4
+} // End of namespace Ultima