font.h

/* 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 TITANIC_FONT_H
#define TITANIC_FONT_H

#include "common/scummsys.h"
#include "common/array.h"
#include "titanic/support/rect.h"
#include "titanic/support/string.h"
#include "titanic/support/text_cursor.h"

namespace Titanic {

enum TextCommand { TEXTCMD_NPC = 26, TEXTCMD_SET_COLOR = 27 };

enum WriteCharacterResult {
    WC_IN_BOUNDS = 0, WC_OUTSIDE_TOP = -1, WC_OUTSIDE_BOTTOM = -2,
    WC_OUTSIDE_LEFT = -3, WC_OUTSIDE_RIGHT = -4
};

class CVideoSurface;

class STFont {
    struct CharEntry {
        uint _width;
        uint _offset;
    };
private:
    void copyRect(CVideoSurface *surface, const Common::Point &destPos,
        Rect &srcRect);

    WriteCharacterResult writeChar(CVideoSurface *surface, unsigned char c,
        const Common::Point &pt, const Rect &destRect, const Rect *srcRect);

    void extendBounds(Point &textSize, byte c, int maxWidth) const;

    void checkLineWrap(Point &textSize, int maxWidth, const char *&str) const;
public:
    byte *_dataPtr;
    size_t _dataSize;
    int _fontHeight;
    uint _dataWidth;
    CharEntry _chars[256];
    byte _fontR, _fontG, _fontB;
public:
    STFont();
    ~STFont();

    void load(int fontNumber);

    int stringWidth(const CString &text) const;

    int writeString(CVideoSurface *surface, const Rect &rect1, const Rect &destRect,
        int yOffset, const CString &str, CTextCursor *textCursor);

    void writeString(CVideoSurface *surface, const Point &destPos, Rect &clipRect,
        const CString &str, int lineWidth = 0);

    int getTextBounds(const CString &str, int maxWidth, Point *sizeOut) const;

    void setColor(byte r, byte g, byte b);

    uint16 getColor() const;
};

} // End of namespace Titanic

#endif /* TITANIC_FONT_H */