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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.
+*
+*/
+
+#ifndef BACKENDS_NETWORKING_CURL_CLOUDICON_H
+#define BACKENDS_NETWORKING_CURL_CLOUDICON_H
+
+#include "graphics/transparent_surface.h"
+
+namespace Networking {
+
+class CloudIcon {
+ static const float ALPHA_STEP, ALPHA_MAX, ALPHA_MIN;
+
+ bool _wasVisible, _iconsInited, _showingDisabled;
+ Graphics::TransparentSurface _icon, _disabledIcon, _alphaIcon;
+ float _currentAlpha;
+ bool _alphaRising;
+ int _disabledFrames;
+
+ void initIcons();
+ void loadIcon(Graphics::TransparentSurface &icon, byte *data, uint32 size);
+ void makeAlphaIcon(Graphics::TransparentSurface &icon, float alpha);
+
+public:
+ CloudIcon();
+ ~CloudIcon();
+
+ /**
+ * This method is called from ConnectionManager every time
+ * its own timer calls the handle() method. The primary
+ * responsibility of this draw() method is to draw cloud icon
+ * on ScummVM's OSD when current cloud Storage is working.
+ *
+ * As we don't want ConnectionManager to work when no
+ * Requests are running, we'd like to stop the timer. But then
+ * this icon wouldn't have time to disappear smoothly. So,
+ * in order to do that, ConnectionManager stop its timer
+ * only when this draw() method returns true, indicating that
+ * the CloudIcon has disappeared and the timer could be stopped.
+ *
+ * @return true if ConnMan's timer could be stopped.
+ */
+ bool draw();
+
+ /** Draw a "cloud disabled" icon instead of "cloud syncing" one. */
+ void showDisabled();
+};
+
+} // End of namespace Networking
+
+#endif