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 ZVISION_TEXT_H
#define ZVISION_TEXT_H

#include "zvision/text/truetype_font.h"
#include "zvision/zvision.h"

namespace ZVision {

class ZVision;

enum TextJustification {
    TEXT_JUSTIFY_CENTER = 0,
    TEXT_JUSTIFY_LEFT = 1,
    TEXT_JUSTIFY_RIGHT = 2
};

enum TextChange {
    TEXT_CHANGE_NONE = 0x0,
    TEXT_CHANGE_FONT_TYPE = 0x1,
    TEXT_CHANGE_FONT_STYLE = 0x2,
    TEXT_CHANGE_NEWLINE = 0x4,
    TEXT_CHANGE_HAS_STATE_BOX = 0x8
};

class TextStyleState {
public:
    TextStyleState();
    TextChange parseStyle(const Common::String &str, int16 len);
    void readAllStyles(const Common::String &txt);
    void updateFontWithTextState(StyledTTFont &font);

    uint32 getTextColor(ZVision *engine) {
        return engine->_resourcePixelFormat.RGBToColor(_red, _green, _blue);
    }

public:
    Common::String _fontname;
    TextJustification _justification;
    int16 _size;
    uint8 _red;     // 0-255
    uint8 _green;   // 0-255
    uint8 _blue;    // 0-255
    bool _italic;
    bool _bold;
    bool _underline;
    bool _strikeout;
    int32 _statebox;
    bool _sharp;
};

class TextRenderer {
public:
    TextRenderer(ZVision *engine): _engine(engine) {};

    void drawTextWithJustification(const Common::String &text, StyledTTFont &font, uint32 color, Graphics::Surface &dest, int lineY, TextJustification jusification);
    int32 drawText(const Common::String &text, TextStyleState &state, Graphics::Surface &dest);
    void drawTextWithWordWrapping(const Common::String &text, Graphics::Surface &dest);

private:
    ZVision *_engine;
};

Common::String readWideLine(Common::SeekableReadStream &stream);
int8 getUtf8CharSize(char chr);
uint16 readUtf8Char(const char *chr);

} // End of namespace ZVision

#endif