xap_Draw_Symbol.h

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/* AbiSource Application Framework
 * Copyright (C) 1998 AbiSource, Inc.
 *
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */


#ifndef XAP_DRAW_SYMBOL_H
#define XAP_DRAW_SYMBOL_H

/* pre-emptive dismissal; ut_types.h is needed by just about everything,
 * so even if it's commented out in-file that's still a lot of work for
 * the preprocessor to do...
 */
#ifndef UT_TYPES_H
#include "ut_types.h"
#endif
#include "ut_misc.h"

#include "xap_Preview.h"

class GR_Font;

class ABI_EXPORT XAP_Draw_Symbol : public XAP_Preview
{
public:

    XAP_Draw_Symbol(GR_Graphics * gc);
    virtual ~XAP_Draw_Symbol();

    // data twiddlers
    void                        setSelectedFont(const char *font);
    void                        setFontString();
    void                        setFontStringarea();
    void                        setFontToGC(GR_Graphics *p_gc, UT_uint32 MaxWidthAllowable, UT_uint32 MaxHeightAllowable);
    void                        setFontfont(GR_Font * font);
    void                        setWindowSize(UT_uint32 width, UT_uint32 height);
    void                        setAreaSize(UT_uint32 width, UT_uint32 height);
    void                        setAreaGc(GR_Graphics *);
    void                        setRow(UT_uint32 row);

    const char*                 getSelectedFont();
    UT_uint32                   getSymbolRows ();

    // where all the Symbol-specific drawing happens

    void                        draw(const UT_Rect *clip=NULL);
    void                        drawarea(UT_UCSChar c, UT_UCSChar p);

    UT_UCSChar                  calcSymbol(UT_uint32 x, UT_uint32 y);
    UT_UCSChar                  calcSymbolFromCoords(UT_uint32 x, UT_uint32 y);
    void                        setCurrent(UT_UCSChar c);
    UT_UCSChar                  getCurrent() { return m_CurrentSymbol; }

    void                        onLeftButtonDown(UT_sint32 x, UT_sint32 y);
    void                        calculatePosition(UT_UCSChar c, UT_uint32 &x, UT_uint32 &y);
    GR_Graphics *               getGraphics(void){return m_areagc;};

protected:
    GR_Graphics *               m_areagc;
    GR_Font *                   m_pFont;    // so we can delete it

    UT_uint32                   m_drawWidth;
    UT_uint32                   m_drawHeight;
    UT_uint32                   m_drawareaWidth;
    UT_uint32                   m_drawareaHeight;
    UT_sint32                   m_start_base;
    UT_sint32           m_start_nb_char;

    UT_UCSChar                  m_CurrentSymbol;
    UT_UCSChar                  m_PreviousSymbol;

private:

    UT_NumberVector             m_vCharSet;
    UT_String               m_stFont;
};

#endif /* XAP_Draw_Symbol_H */