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engines/crab/LoadingScreen.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/>.
+ *
+ */
+
+/*
+ * This code is based on the CRAB engine
+ *
+ * Copyright (c) Arvind Raja Yadav
+ *
+ * Licensed under MIT
+ *
+ */
+
+#include "graphics/screen.h"
+#include "crab/crab.h"
+#include "crab/LoadingScreen.h"
+#include "crab/XMLDoc.h"
+
+namespace Crab {
+
+void LoadingScreen::load() {
+	Common::Path filename("res/layout/loading.xml");
+	XMLDoc doc(filename);
+	if (doc.ready()) {
+		rapidxml::xml_node<char> *node = doc.doc()->first_node("loading");
+		if (nodeValid(node)) {
+			if (nodeValid("screens", node)) {
+				rapidxml::xml_node<char> *scrnode = node->first_node("screens");
+				for (auto n = scrnode->first_node("screen"); n != nullptr; n = n->next_sibling("screen"))
+					_screen.push_back(n);
+			}
+
+			if (nodeValid("text", node))
+				_text.load(node->first_node("text"), "img");
+		}
+	}
+}
+
+void LoadingScreen::draw() {
+	// Change to a random screen
+	change();
+
+	// Draw the current screen
+	if (_cur < _screen.size())
+		_screen[_cur].draw();
+
+	// Draw the loading text
+	_text.draw((g_engine->_screenSettings->_cur.w - _text.w()) / 2, (g_engine->_screenSettings->_cur.h - _text.h()) / 2);
+
+	// Update the screen
+	g_engine->_screen->update();
+}
+
+void LoadingScreen::dim() {
+	warning("STUB: LoadingScreen::dim()");
+
+#if 0
+	// This is used when starting or loading a game from the main menu in order to dim the screen
+	// until an actual loading screen is drawn
+	SDL_SetRenderDrawBlendMode(gRenderer, SDL_BLENDMODE_BLEND);
+	SDL_SetRenderDrawColor(gRenderer, 0, 0, 0, 200);
+	SDL_RenderFillRect(gRenderer, NULL);
+
+	// Update the screen
+	SDL_RenderPresent(gRenderer);
+#endif
+}
+
+void LoadingScreen::quit() {
+	_text.deleteImage();
+
+	for (auto &i : _screen)
+		i.clear();
+}
+
+} // End of namespace Crab