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/usr/include/InterViews/font.h is in ivtools-dev 1.2.11a1-11.

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/*
 * Copyright (c) 1987, 1988, 1989, 1990, 1991 Stanford University
 * Copyright (c) 1991 Silicon Graphics, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and 
 * its documentation for any purpose is hereby granted without fee, provided
 * that (i) the above copyright notices and this permission notice appear in
 * all copies of the software and related documentation, and (ii) the names of
 * Stanford and Silicon Graphics may not be used in any advertising or
 * publicity relating to the software without the specific, prior written
 * permission of Stanford and Silicon Graphics.
 * 
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
 *
 * IN NO EVENT SHALL STANFORD OR SILICON GRAPHICS BE LIABLE FOR
 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
 * OF THIS SOFTWARE.
 */

/*
 * A font is essentially an array of similar stencils that can be
 * indexed by a code corresponding to a character in an alphabet.
 */

#ifndef iv_font_h
#define iv_font_h

#include <InterViews/coord.h>
#include <InterViews/resource.h>

#include <InterViews/_enter.h>

class Display;
class FontFamilyImpl;
class FontFamilyRep;
class FontImpl;
class FontRep;
class String;

/*
 * FontFamily - manages related fonts
 */

class FontFamily {
public:
    FontFamily(const char* familyname);
    virtual ~FontFamily();

    virtual boolean font(int size, const char*& name, float& scale) const;
    virtual boolean font(
        int size, const char* style, const char*& name, float& scale
    ) const;

    FontFamilyRep* rep(Display*) const;
private:
    FontFamilyImpl* impl_;

    FontFamilyRep* create(Display*) const;
    void destroy(FontFamilyRep*);
};

class FontBoundingBox {
public:
#ifdef _DELTA_EXTENSIONS
#pragma __static_class
#endif
    Coord left_bearing() const;
    Coord right_bearing() const;
    Coord width() const;
    Coord ascent() const;
    Coord descent() const;
    Coord font_ascent() const;
    Coord font_descent() const;
private:
    friend class Font;

    Coord left_bearing_;
    Coord right_bearing_;
    Coord width_;
    Coord ascent_;
    Coord descent_;
    Coord font_ascent_;
    Coord font_descent_;
};

inline Coord FontBoundingBox::left_bearing() const { return left_bearing_; }
inline Coord FontBoundingBox::right_bearing() const { return right_bearing_; }
inline Coord FontBoundingBox::width() const { return width_; }
inline Coord FontBoundingBox::ascent() const { return ascent_; }
inline Coord FontBoundingBox::descent() const { return descent_; }
inline Coord FontBoundingBox::font_ascent() const { return font_ascent_; }
inline Coord FontBoundingBox::font_descent() const { return font_descent_; }

//: a font object
// defines a mapping between character codes and their appearance on the screen.
// <p><a href=../refman3.1/refman.html#PAGE39>in reference manual</a>
class Font : public Resource {
public:
    Font(const String&, float scale = 1.0);
    Font(const char*, float scale = 1.0);
    virtual ~Font();

    virtual void cleanup();

    static const Font* lookup(const String&);
    static const Font* lookup(const char*);

    static boolean exists(Display*, const String&);
    static boolean exists(Display*, const char*);

    virtual const char* name() const;
    virtual const char* encoding() const;
    virtual Coord size() const;

    virtual void font_bbox(FontBoundingBox&) const;
    virtual void char_bbox(long, FontBoundingBox&) const;
    virtual void string_bbox(const char*, int, FontBoundingBox&) const;
    virtual Coord width(long) const;
    virtual Coord width(const char*, int) const;

    virtual int index(const char*, int, float offset, boolean between) const;

    FontRep* rep(Display*) const;
protected:
    Font(FontImpl*);
private:
    friend class FontImpl;

    FontImpl* impl_;

    /* anachronisms */
public:
    int Baseline() const;
    boolean FixedWidth() const;
    int Height() const;
    int Index(const char*, int offset, boolean between) const;
    int Index(const char*, int, int offset, boolean between) const;
    int Width(const char*) const;
    int Width(const char*, int) const;
};

#include <InterViews/_leave.h>

#endif