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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
// Font.hh for Blackbox - an X11 Window manager
// Copyright (c) 2001 - 2005 Sean 'Shaleh' Perry <shaleh@debian.org>
// Copyright (c) 1997 - 2000, 2002 - 2005
// Bradley T Hughes <bhughes at trolltech.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#ifndef __Font_hh
#define __Font_hh
#include "Unicode.hh"
#include "Util.hh"
namespace bt {
// forward declarations
class Display;
class Font;
class Pen;
class Rect;
class Resource;
enum Alignment {
AlignLeft,
AlignCenter,
AlignRight
};
unsigned int textHeight(unsigned int screen, const Font &font);
/*
Returns the text indent (pad). Note that textRect() and
drawText() use this function (so you do not have to).
*/
unsigned int textIndent(unsigned int screen, const Font &font);
Rect textRect(unsigned int screen, const Font &font,
const bt::ustring &text);
void drawText(const Font &font, const Pen &pen,
Drawable drawable, const Rect &rect,
Alignment alignment, const ustring &text);
/*
* Take a string and make it 'count' chars long by removing the
* middle and replacing it with the string in 'ellide'.
*/
ustring ellideText(const ustring &text, size_t count,
const ustring &ellide);
/*
* Take a string and make no more than 'max_width' pixels wide by
* removing the middle and replacing it with the string in 'ellide'.
* The on-screen size of the string font is determined using the
* specified font on the specified screen.
*/
ustring ellideText(const ustring &text,
unsigned int max_width,
const ustring &ellide,
unsigned int screen,
const bt::Font &font);
Alignment alignResource(const Resource &resource,
const char* name, const char* classname,
Alignment default_align = AlignLeft);
class Font {
public:
static void clearCache(void);
explicit inline Font(const std::string &name = std::string())
: _fontname(name), _fontset(0), _xftfont(0), _screen(~0u)
{ }
inline ~Font(void)
{ unload(); }
inline const std::string& fontName(void) const
{ return _fontname; }
inline void setFontName(const std::string &new_fontname)
{ unload(); _fontname = new_fontname; }
XFontSet fontSet(void) const;
XftFont *xftFont(unsigned int screen) const;
inline Font& operator=(const Font &f)
{ setFontName(f.fontName()); return *this; }
inline bool operator==(const Font &f) const
{ return _fontname == f._fontname; }
inline bool operator!=(const Font &f) const
{ return (!operator==(f)); }
private:
void unload(void);
std::string _fontname;
mutable XFontSet _fontset;
mutable XftFont *_xftfont;
mutable unsigned int _screen; // only used for Xft
};
} // namespace bt
#endif // __Font_hh
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