mactext-canvas.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 GRAPHICS_MACGUI_MACTEXTCANVAS_H
#define GRAPHICS_MACGUI_MACTEXTCANVAS_H

#include "graphics/macgui/macwindowmanager.h"
#include "graphics/image-archive.h"

namespace Graphics {

class MacText;

struct MacFontRun {
    Common::U32String text;

    uint16 fontId;
    byte textSlant;
    uint16 fontSize;
    uint16 palinfo1;
    uint16 palinfo2;
    uint16 palinfo3;
    uint32 fgcolor;
    const Font *font;
    MacWindowManager *wm;
    Common::String link;  // Substitute to return when hover or click

    MacFontRun() {
        wm = nullptr;
        fontId = textSlant = fontSize = 0;
        palinfo1 = palinfo2 = palinfo3 = 0;
        fgcolor = 0;
        font = nullptr;
    }

    MacFontRun(MacWindowManager *wm_) {
        wm = wm_;
        fontId = textSlant = fontSize = 0;
        palinfo1 = palinfo2 = palinfo3 = 0;
        fgcolor = 0;
        font = nullptr;
    }

    MacFontRun(MacWindowManager *wm_, uint16 fontId_, byte textSlant_, uint16 fontSize_,
            uint16 palinfo1_, uint16 palinfo2_, uint16 palinfo3_) {
        setValues(wm_, fontId_, textSlant_, fontSize_, palinfo1_, palinfo2_, palinfo3_);
    }

    MacFontRun(MacWindowManager *wm_, const Font *font_, byte textSlant_, uint16 fontSize_,
            uint16 palinfo1_, uint16 palinfo2_, uint16 palinfo3_) {
        setValues(wm_, 0, textSlant_, fontSize_, palinfo1_, palinfo2_, palinfo3_);
        font = font_;
    }

    void setValues(MacWindowManager *wm_, uint16 fontId_, byte textSlant_, uint16 fontSize_,
            uint16 palinfo1_, uint16 palinfo2_, uint16 palinfo3_) {
        wm        = wm_;
        fontId    = fontId_;
        textSlant = textSlant_;
        fontSize  = fontSize_;
        palinfo1  = palinfo1_;
        palinfo2  = palinfo2_;
        palinfo3  = palinfo3_;
        fgcolor   = wm_->findBestColor(palinfo1_ & 0xff, palinfo2_ & 0xff, palinfo3_ & 0xff);
        font      = nullptr;
    }

    const Font *getFont();

    const Common::String toString();
    bool equals(MacFontRun &to);

    Common::CodePage getEncoding();
    bool plainByteMode();
    Common::String getEncodedText();

    bool equals(const MacFontRun *y) {
        return (fontId    == y->fontId &&
                textSlant == y->textSlant &&
                fontSize  == y->fontSize &&
                palinfo1  == y->palinfo1 &&
                palinfo2  == y->palinfo2 &&
                palinfo3  == y->palinfo3 &&
                fgcolor   == y->fgcolor);
    }

    void debugPrint();
};

struct MacTextLine;

class MacTextCanvas {
public:
    Common::Array<MacTextLine> _text;
    ManagedSurface *_surface = nullptr, *_shadowSurface = nullptr;
    int _maxWidth = 0;
    int _textMaxWidth = 0;
    int _textMaxHeight = 0;
    TextAlign _textAlignment = kTextAlignLeft;
    int _interLinear = 0;
    int _textShadow = 0;
    MacWindowManager *_wm = nullptr;
    uint32 _tfgcolor = 0;
    uint32 _tbgcolor = 0;
    bool _macFontMode = true;
    MacText *_macText;
    MacFontRun _defaultFormatting;
    ImageArchive _imageArchive;

public:
    ~MacTextCanvas();

    void recalcDims();
    void reallocSurface();
    void render(int from, int to);
    void render(int from, int to, int shadow);
    int getAlignOffset(int row);

    int getLineWidth(int line, bool enforce = false, int col = -1);
    int getLineHeight(int line);
    int getLineCharWidth(int line, bool enforce = false);

    void splitString(const Common::U32String &str, int curLine, MacFontRun &defaultFormatting);
    const Common::U32String::value_type *splitString(const Common::U32String::value_type *s, int curLine, MacFontRun &defaultFormatting);

    void chopChunk(const Common::U32String &str, int *curLinePtr, int indent, int maxWidth);
    Common::U32String getTextChunk(int startRow, int startCol, int endRow, int endCol, bool formatted = false, bool newlines = true);

    void reshuffleParagraph(int *row, int *col, MacFontRun &defaultFormatting);
    void setMaxWidth(int maxWidth, MacFontRun &defaultFormatting);

    void debugPrint(const char *prefix = nullptr);

private:
    void processTable(int line, int maxWidth);
    void parsePicExt(const Common::U32String &ext, uint16 &w, uint16 &h, int defpercent);
};

struct MacTextTableRow {
    Common::Array<MacTextCanvas> cells;
    int heght = -1;
};

struct MacTextLine {
    int width = -1;
    int height = -1;
    int minWidth = -1;
    int y = 0;
    int charwidth = -1;
    bool paragraphEnd = false;
    bool wordContinuation = false;
    int indent = 0; // in units
    int firstLineIndent = 0; // in pixels
    Common::Path picfname;
    Common::U32String picalt, pictitle, picext;
    uint16 picpercent = 50;
    Common::Array<MacTextTableRow> *table = nullptr;
    ManagedSurface *tableSurface = nullptr;

    Common::Array<MacFontRun> chunks;

    MacFontRun &firstChunk() { return chunks[0]; }
    MacFontRun &lastChunk() { return chunks[chunks.size() - 1]; }

    uint getChunkNum(int *col);
};

} // End of namespace Graphics

#endif