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engines/access/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 ACCESS_FONT_H
+#define ACCESS_FONT_H
+
+#include "common/scummsys.h"
+#include "common/array.h"
+#include "common/rect.h"
+#include "access/asurface.h"
+#include "access/data.h"
+
+namespace Access {
+
+struct FontVal {
+public:
+	int _lo, _hi;
+
+	FontVal() { _lo = _hi = 0; }
+};
+
+class Font {
+protected:
+	byte _firstCharIndex;
+	int _bitWidth;
+	int _height;
+	Common::Array<Graphics::Surface> _chars;
+protected:
+	/**
+	 * Constructor
+	 */
+	Font(byte firstCharIndex);
+public:
+	static byte _fontColors[4];
+public:
+	/**
+	 * Destructor
+	 */
+	virtual ~Font();
+
+	/**
+	 * Get the width of a given character
+	 */
+	int charWidth(char c) const;
+
+	/**
+	 * Get the width of a given string
+	 */
+	int stringWidth(const Common::String &msg) const;
+
+	/**
+	 * Type of line wrapping - Martian wraps based on chars, Amazon based on px.
+	 *
+	 * Since the fonts are variable width we need to support both types to
+	 * exactly wrap like the originals.
+	 */
+	enum LINE_WIDTH_TYPE {
+		kWidthInPixels,
+		kWidthInChars
+	};
+
+	/**
+	 * Get a partial string that will fit in a given width
+	 * @param s			Source string. Modified to remove line
+	 * @param maxWidth	Maximum width allowed in px or chars (see widthType)
+	 * @param line		Output line
+	 * @param width		Actual width of returned line in selected units
+	 * @param widthType Select the type of width constraint - px or chars
+	 * @returns			True if last line
+	 */
+	bool getLine(Common::String &s, int maxWidth, Common::String &line, int &width,
+				 LINE_WIDTH_TYPE widthType = kWidthInPixels) const;
+
+	/**
+	 * Draw a string on a given surface
+	 */
+	void drawString(BaseSurface *s, const Common::String &msg, const Common::Point &pt) const;
+
+	/**
+	 * Draw a character on a given surface
+	 */
+	int drawChar(BaseSurface *s, char c, Common::Point &pt) const;
+
+};
+
+class AmazonFont : public Font {
+private:
+	/**
+	 * Load the given font data
+	 */
+	void load(const int *fontIndex, const byte *fontData);
+public:
+	/**
+	 * Constructor
+	 */
+	AmazonFont(const int *fontIndex, const byte *fontData) : Font(32) {
+		load(fontIndex, fontData);
+	}
+
+};
+
+class MartianFont : public Font {
+private:
+	/**
+	 * Load the given font data
+	 */
+	void loadFromStream(Common::SeekableReadStream &s);
+	void loadFromData(size_t count, const byte *widths, const int *offsets, const byte *data);
+public:
+	/**
+	* Constructor
+	*/
+	MartianFont(int height, Common::SeekableReadStream &s);
+	MartianFont(int height, size_t count, const byte *widths, const int *offsets, const byte *data);
+};
+
+class MartianBitFont : public Font {
+public:
+	/**
+	* Constructor
+	*/
+	MartianBitFont(size_t count, const byte *data);
+};
+
+
+class FontManager {
+public:
+	FontVal _charSet;
+	FontVal _charFor;
+	int _printMaxX;
+	Font *_font1;
+	Font *_font2;
+	Font *_bitFont;
+public:
+	/**
+	 * Constructor
+	 */
+	FontManager();
+
+	/**
+	 * Set the fonts
+	 */
+	void load(Font *font1, Font *font2, Font *bitFont);
+};
+
+} // End of namespace Access
+
+#endif /* ACCESS_FONT_H */