gambas-source-code/gb.qt4/share/gb.form.font.h

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/***************************************************************************
gb.form.font.h
(c) 2000-2011 Benoît Minisini <gambas@users.sourceforge.net>
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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
***************************************************************************/
#ifndef __GB_FORM_FONT_H
#define __GB_FORM_FONT_H
#define FONT_STEP 20
#define GRADE_TO_SIZE(_grade, _desktop) ((int)(powf(_desktop, 1.0 + ((_grade) / (double)FONT_STEP)) + 0.5))
#define SIZE_TO_GRADE(_size, _desktop) ((int)(FONT_STEP * (logf(_size) / logf(_desktop)) + 0.5) - FONT_STEP)
#define GET_DESKTOP_SCALE(_font_size, _dpi) (1 + ((_font_size) * (_dpi) * 2 / 3 / 96))
#endif