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image/icocur.h

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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/>.
+ *
+ */
+
+#ifndef IMAGE_ICOCUR_H
+#define IMAGE_ICOCUR_H
+
+#include "common/array.h"
+#include "common/types.h"
+
+namespace Common {
+
+class SeekableReadStream;
+
+} // End of namespace Common
+
+namespace Graphics {
+
+class Cursor;
+struct Surface;
+
+} // End of namespace Graphics
+
+namespace Image {
+
+class IcoCurDecoder {
+public:
+	enum Type {
+		kTypeInvalid,
+
+		kTypeICO,
+		kTypeCUR,
+	};
+
+	struct Item {
+		struct IconData {
+			uint16 numPlanes;
+			uint16 bitsPerPixel;
+		};
+
+		struct CursorData {
+			uint16 hotspotX;
+			uint16 hotspotY;
+		};
+
+		union DataUnion {
+			IconData ico;
+			CursorData cur;
+		};
+
+		uint16 width;
+		uint16 height;
+		uint8 numColors;	// May be 0
+		DataUnion data;
+		uint32 dataSize;
+		uint32 dataOffset;
+	};
+
+	IcoCurDecoder();
+	~IcoCurDecoder();
+
+	bool open(Common::SeekableReadStream &stream, DisposeAfterUse::Flag = DisposeAfterUse::NO);
+	void close();
+
+	Type getType() const;
+	uint numItems() const;
+	const Item &getItem(uint itemIndex) const;
+
+	/**
+	 * Loads an item from the directory as a cursor.
+	 *
+	 * @param itemIndex The index of the item in the directory.
+	 * @return Loaded cursor.
+	 */
+	Graphics::Cursor *loadItemAsCursor(uint itemIndex) const;
+
+private:
+	bool load();
+
+	Type _type;
+	Common::Array<Item> _items;
+
+	Common::SeekableReadStream *_stream;
+	DisposeAfterUse::Flag _disposeAfterUse;
+};
+
+} // End of namespace Image
+
+#endif