/*
 * 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.
 */

/*
 * Label - ASCII text glyph with font
 */

#ifndef iv_label_h
#define iv_label_h

#include <InterViews/glyph.h>

#include <InterViews/_enter.h>

class Color;
class Font;
class String;

class Label : public Glyph {
public:
    Label(const String&, const Font*, const Color*);
    Label(const char*, const Font*, const Color*);
    Label(const char*, int len, const Font*, const Color*);
    virtual ~Label();

    virtual void request(Requisition&) const;
    virtual void allocate(Canvas*, const Allocation&, Extension&);
    virtual void draw(Canvas*, const Allocation&) const;
    virtual void pick(Canvas*, const Allocation&, int depth, Hit&);

    // access functions
    const String* string () const  { return text_; }
    const Font* font () const      { return font_; }
    const Color* color () const    { return color_; }
    Coord ascent () const   { return ascent_; }
    Coord descent () const  { return descent_; }
    const Coord* charWidths () const  { return char_widths_; }

private:
    String* text_;
    const Font* font_;
    const Color* color_;
    Coord left_;
    Coord right_;
    Coord ascent_;
    Coord descent_;
    Coord width_;
    Coord* char_widths_;

    void compute_metrics();
};

#include <InterViews/_leave.h>

#endif
