text.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 KYRA_TEXT_H
#define KYRA_TEXT_H

#include "common/scummsys.h"

#include "kyra/graphics/screen.h"

namespace Kyra {
class KyraEngine_v1;

class TextDisplayer {
public:
    TextDisplayer(KyraEngine_v1 *vm, Screen *screen);
    virtual ~TextDisplayer() {}

    int maxSubstringLen() const { return TALK_SUBSTRING_LEN; }

    void setTalkCoords(uint16 y);
    int getCenterStringX(const Common::String &str, int x1, int x2);
    int getCharLength(const char *str, int len);
    int dropCRIntoString(char *str, int offs);
    virtual char *preprocessString(const char *str);
    int buildMessageSubstrings(const char *str);
    int getWidestLineWidth(int linesCount);
    virtual void calcWidestLineBounds(int &x1, int &x2, int w, int cx);
    virtual void restoreTalkTextMessageBkgd(int srcPage, int dstPage);
    void printTalkTextMessage(const char *text, int x, int y, uint8 color, int srcPage, int dstPage);
    virtual void printText(const Common::String &str, int x, int y, uint8 c0, uint8 c1, uint8 c2);
    void printCharacterText(const char *text, int8 charNum, int charX);

    uint16 _talkMessageY;
    uint16 _talkMessageH;
    int _langExtraSpacing;
    bool printed() const { return _talkMessagePrinted; }

protected:
    Screen *_screen;
    KyraEngine_v1 *_vm;

    struct TalkCoords {
        uint16 y, x, w;
    };

    // TODO: AMIGA and LoK specific, move to a better location
    void setTextColor(uint8 color);

    enum {
        TALK_SUBSTRING_LEN = 80,
        TALK_SUBSTRING_NUM = 6
    };

    char _talkBuffer[1040];
    char _talkSubstrings[TALK_SUBSTRING_LEN * TALK_SUBSTRING_NUM];
    TalkCoords _talkCoords;
    bool _talkMessagePrinted;

    char _lineBreakChar;
};

} // End of namespace Kyra

#endif