include/gui_templates.h

   1 /*
   2  * gui_templates.h - GUI-specific templates
   3  *
   4  * Copyright (c) 2005-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
   5  *
   6  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public
  19  * License along with this program (see COPYING); if not, write to the
  20  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21  * Boston, MA 02110-1301 USA.
  22  *
  23  */
  24
  25
  26 #ifndef _GUI_TEMPLATES_H
  27 #define _GUI_TEMPLATES_H
  28
  29 #include "lmmsconfig.h"
  30
  31 #include <QtGui/QApplication>
  32 #include <QtGui/QFont>
  33 #include <QtGui/QDesktopWidget>
  34
  35
  36
  37 // return DPI-independent font-size - font with returned font-size has always
  38 // the same size in pixels
  39 template<int SIZE>
  40 inline QFont pointSize( QFont _f )
  41 {
  42         static const float DPI = 96;
  43 #ifdef LMMS_BUILD_WIN32
  44         _f.setPointSizeF( ((float) SIZE+0.5f) * DPI /
  45                         QApplication::desktop()->logicalDpiY() );
  46 #else
  47         _f.setPointSizeF( (float) SIZE * DPI /
  48                         QApplication::desktop()->logicalDpiY() );
  49 #endif
  50         return( _f );
  51 }
  52
  53
  54 inline QFont pointSizeF( QFont _f, float SIZE )
  55 {
  56         static const float DPI = 96;
  57 #ifdef LMMS_BUILD_WIN32
  58         _f.setPointSizeF( (SIZE+0.5f) * DPI /
  59                         QApplication::desktop()->logicalDpiY() );
  60 #else
  61         _f.setPointSizeF( SIZE * DPI /
  62                         QApplication::desktop()->logicalDpiY() );
  63 #endif
  64         return( _f );
  65 }
  66
  67
  68 #endif