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engines/qdengine/system/graphics/gr_font.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 QDENGINE_SYSTEM_GRAPHICS_GR_FONT_H
+#define QDENGINE_SYSTEM_GRAPHICS_GR_FONT_H
+
+#include "common/path.h"
+#include "qdengine/system/graphics/gr_screen_region.h"
+
+namespace Common {
+class SeekableReadStream;
+}
+
+namespace QDEngine {
+
+class grFont {
+public:
+	grFont();
+	~grFont();
+
+	bool load(const Common::Path &fname);
+
+	bool load_index(Common::SeekableReadStream *fh);
+	bool load_alpha(Common::SeekableReadStream *fh);
+
+	int size_x() const {
+		return _size_x;
+	}
+	int size_y() const {
+		return _size_y;
+	}
+
+	int alpha_buffer_size_x() const {
+		return _alpha_buffer_sx;
+	}
+	int alpha_buffer_size_y() const {
+		return _alpha_buffer_sy;
+	}
+
+	const byte *alpha_buffer() const {
+		return _alpha_buffer;
+	}
+
+	const grScreenRegion find_char(int code) const {
+		grFontCharVector::const_iterator it = Common::find(_chars.begin(), _chars.end(), code);
+		if (it != _chars.end()) return it->_region;
+
+		return grScreenRegion_EMPTY;
+	}
+
+	int char_width(int code) const {
+		return code == ' ' ? size_x() / 2 : find_char(code).size_x();
+	}
+
+private:
+
+	int _size_x;
+	int _size_y;
+
+	int _alpha_buffer_sx;
+	int _alpha_buffer_sy;
+	byte *_alpha_buffer;
+
+	struct grFontChar {
+		grFontChar() : _code(-1) { }
+
+		int _code;
+		grScreenRegion _region;
+
+		bool operator == (int code) const {
+			return (_code == code);
+		}
+	};
+
+	typedef Std::vector<grFontChar> grFontCharVector;
+	grFontCharVector _chars;
+};
+
+} // namespace QDEngine
+
+#endif // QDENGINE_SYSTEM_GRAPHICS_GR_FONT_H