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engines/cryomni3d/fonts/cryoextfont.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 CRYOMNI3D_FONTS_CRYOEXTFONT_H
+#define CRYOMNI3D_FONTS_CRYOEXTFONT_H
+
+#include "common/array.h"
+#include "common/hashmap.h"
+#include "common/str.h"
+#include "graphics/font.h"
+
+namespace Common {
+class SeekableReadStream;
+}
+
+namespace CryOmni3D {
+
+class CryoExtFont : public Graphics::Font {
+public:
+	CryoExtFont() : _height(0), _maxAdvance(0), _crf(nullptr), _codepage(Common::kCodePageInvalid) { }
+	virtual ~CryoExtFont();
+
+	void load(const Common::Path &fontFile, Common::CodePage encoding);
+
+	virtual int getFontHeight() const { return _height; }
+	virtual int getMaxCharWidth() const { return _maxAdvance; }
+
+	virtual int getCharWidth(uint32 chr) const;
+
+	virtual Common::Rect getBoundingBox(uint32 chr) const;
+
+	virtual void drawChar(Graphics::Surface *dst, uint32 chr, int x, int y, uint32 color) const;
+
+private:
+	void loadOffsets(const Common::Path &offsetsFile);
+	void assureCached(uint32 chr) const;
+	uint32 mapGlyph(uint32 chr) const;
+
+	struct Glyph {
+		uint16 h;
+		uint16 w;
+		int16 offX;
+		int16 offY;
+		uint16 advance;
+
+		byte *bitmap;
+
+		Glyph();
+		~Glyph();
+
+		uint setup(uint16 width, uint16 height);
+	};
+
+	uint16 _height;
+	uint16 _maxAdvance;
+	byte _comment[32];
+
+	Common::CodePage _codepage;
+
+	mutable Common::SeekableReadStream *_crf;
+	Common::Array<uint32> _offsets;
+
+	typedef Common::HashMap<uint32, Glyph> GlyphCache;
+	mutable GlyphCache _cache;
+};
+
+} // End of namespace CryOmni3D
+
+#endif