src/Look/Fonts.cpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2013 The XCSoar Project
   6   A detailed list of copyright holders can be found in the file "AUTHORS".
   7
   8   This program is free software; you can redistribute it and/or
   9   modify it under the terms of the GNU General Public License
  10   as published by the Free Software Foundation; either version 2
  11   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
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 }
  22 */
  23
  24 #include "Fonts.hpp"
  25 #include "StandardFonts.hpp"
  26 #include "Screen/Font.hpp"
  27 #include "Screen/Layout.hpp"
  28
  29 #ifdef ENABLE_OPENGL
  30 #include "Screen/OpenGL/Cache.hpp"
  31 #endif
  32
  33 #include <string.h>
  34
  35 /// values inside infoboxes  like numbers, etc.
  36 Font Fonts::infobox;
  37 Font Fonts::infobox_small;
  38 #ifndef GNAV
  39 Font Fonts::infobox_units;
  40 #endif
  41 /// Titles of infoboxes like Next, WP L/D etc.
  42 Font Fonts::title;
  43 /// vario display, runway informations
  44 Font Fonts::cdi;
  45 Font Fonts::monospace;
  46 /// text names on the map
  47 Font Fonts::map;
  48 /// menu buttons, waypoint selection, messages, etc.
  49 Font Fonts::map_bold;
  50 /// Flarm Traffic draweing and stats, map labels in italic
  51 Font Fonts::map_label;
  52 /// font labels for important labels (e.g. big/medium cities)
  53 Font Fonts::map_label_important;
  54
  55 // these are the non-custom parameters
  56 LOGFONT log_infobox;
  57 #ifndef GNAV
  58 LOGFONT log_infobox_units;
  59 #endif
  60 LOGFONT log_title;
  61 LOGFONT log_map;
  62 LOGFONT log_infobox_small;
  63 LOGFONT log_map_bold;
  64 LOGFONT log_cdi;
  65 LOGFONT log_map_label;
  66 LOGFONT log_map_label_important;
  67 static LOGFONT log_monospace;
  68
  69 static void
  70 InitialiseLogfont(LOGFONT* font, const TCHAR* facename, UPixelScalar height,
  71                   bool bold = false, bool italic = false,
  72                   bool variable_pitch = true)
  73 {
  74   memset((char *)font, 0, sizeof(LOGFONT));
  75
  76   _tcscpy(font->lfFaceName, facename);
  77
  78   font->lfPitchAndFamily = (variable_pitch ? VARIABLE_PITCH : FIXED_PITCH)
  79                           | FF_DONTCARE;
  80
  81   font->lfHeight = (long)height;
  82   font->lfWeight = (long)(bold ? FW_BOLD : FW_MEDIUM);
  83   font->lfItalic = italic;
  84
  85 #ifdef WIN32
  86   if (IsAltair())
  87     font->lfQuality = NONANTIALIASED_QUALITY;
  88   else
  89     font->lfQuality = ANTIALIASED_QUALITY;
  90 #endif
  91 }
  92
  93 static void
  94 LoadAltairLogFonts()
  95 {
  96   InitialiseLogfont(&log_infobox, _T("RasterGothicTwentyFourCond"), 24, true);
  97   InitialiseLogfont(&log_title, _T("RasterGothicNineCond"), 10);
  98   InitialiseLogfont(&log_cdi, _T("RasterGothicEighteenCond"), 19, true);
  99   InitialiseLogfont(&log_map_label, _T("RasterGothicTwelveCond"), 13);
 100   InitialiseLogfont(&log_map_label_important,
 101                     _T("RasterGothicTwelveCond"), 13);
 102   InitialiseLogfont(&log_map, _T("RasterGothicFourteenCond"), 15);
 103   InitialiseLogfont(&log_map_bold, _T("RasterGothicFourteenCond"), 15, true);
 104   InitialiseLogfont(&log_infobox_small, _T("RasterGothicEighteenCond"), 19, true);
 105   InitialiseLogfont(&log_monospace, GetStandardMonospaceFontFace(),
 106                     10, false, false, false);
 107 }
 108
 109 static void
 110 SizeLogFont(LOGFONT &logfont, UPixelScalar width, const TCHAR* str)
 111 {
 112   // JMW algorithm to auto-size info window font.
 113   // this is still required in case title font property doesn't exist.
 114   PixelSize tsize;
 115   do {
 116     --logfont.lfHeight;
 117
 118     Font font;
 119     if (!font.Load(logfont))
 120       break;
 121
 122     tsize = font.TextSize(str);
 123   } while ((unsigned)tsize.cx > width);
 124
 125   ++logfont.lfHeight;
 126 }
 127
 128 static void
 129 InitialiseLogFonts()
 130 {
 131   if (IsAltair()) {
 132     LoadAltairLogFonts();
 133     return;
 134   }
 135
 136 #ifndef USE_GDI
 137   UPixelScalar font_height = Layout::SmallScale(IsAndroid() ? 30 : 24);
 138 #else
 139   UPixelScalar font_height = Layout::SmallScale(35);
 140 #endif
 141
 142   // oversize first so can then scale down
 143   InitialiseLogfont(&log_infobox, GetStandardFontFace(),
 144                     (int)(font_height * 1.4), true, false, true);
 145
 146 #ifdef WIN32
 147   log_infobox.lfCharSet = ANSI_CHARSET;
 148 #endif
 149
 150   InitialiseLogfont(&log_title, GetStandardFontFace(), font_height / 3);
 151
 152   // new font for CDI Scale
 153   InitialiseLogfont(&log_cdi, GetStandardFontFace(),
 154                     UPixelScalar(font_height * 0.6), false, false, false);
 155
 156   // new font for map labels
 157   InitialiseLogfont(&log_map_label, GetStandardFontFace(),
 158                     UPixelScalar(font_height * 0.39), false, true);
 159
 160   // new font for map labels big/medium cities
 161   InitialiseLogfont(&log_map_label_important, GetStandardFontFace(),
 162                     UPixelScalar(font_height * 0.39), false, true);
 163
 164   // new font for map labels
 165   InitialiseLogfont(&log_map, GetStandardFontFace(),
 166                     UPixelScalar(font_height * 0.507));
 167
 168   // Font for map bold text
 169   InitialiseLogfont(&log_map_bold, GetStandardFontFace(),
 170                     UPixelScalar(font_height * 0.507), true);
 171
 172   InitialiseLogfont(&log_infobox_small, GetStandardFontFace(),
 173                     Layout::Scale(20));
 174
 175 #ifndef GNAV
 176   InitialiseLogfont(&log_infobox_units, GetStandardFontFace(),
 177                     (int)(font_height * 0.56));
 178 #endif
 179
 180   InitialiseLogfont(&log_monospace, GetStandardMonospaceFontFace(),
 181                     UPixelScalar(font_height * 0.39), false, false, false);
 182 }
 183
 184 bool
 185 Fonts::Initialize()
 186 {
 187   InitialiseLogFonts();
 188
 189   title.Load(log_title);
 190   cdi.Load(log_cdi);
 191   map_label.Load(log_map_label);
 192   map_label_important.Load(log_map_label_important);
 193   map.Load(log_map);
 194   map_bold.Load(log_map_bold);
 195   monospace.Load(log_monospace);
 196
 197   return title.IsDefined() && cdi.IsDefined() &&
 198     map_label.IsDefined() && map_label_important.IsDefined() &&
 199     map.IsDefined() && map_bold.IsDefined() &&
 200     monospace.IsDefined();
 201 }
 202
 203 void
 204 Fonts::SizeInfoboxFont(UPixelScalar control_width)
 205 {
 206   LOGFONT lf = log_infobox;
 207
 208   if (!IsAltair())
 209     SizeLogFont(lf, control_width, _T("1234m"));
 210   infobox.Load(lf);
 211
 212 #ifndef GNAV
 213   unsigned height = lf.lfHeight;
 214   lf = log_infobox_units;
 215   lf.lfHeight = (height * 2) / 5;
 216   infobox_units.Load(lf);
 217 #endif
 218
 219   lf = log_infobox_small;
 220   if (!IsAltair())
 221     SizeLogFont(lf, control_width, _T("12345m"));
 222   infobox_small.Load(lf);
 223
 224 #ifdef ENABLE_OPENGL
 225   TextCache::Flush();
 226 #endif
 227 }
 228
 229 void
 230 Fonts::Deinitialize()
 231 {
 232   infobox.Destroy();
 233   infobox_small.Destroy();
 234 #ifndef GNAV
 235   infobox_units.Destroy();
 236 #endif
 237   title.Destroy();
 238   map.Destroy();
 239   map_bold.Destroy();
 240   cdi.Destroy();
 241   map_label.Destroy();
 242   map_label_important.Destroy();
 243   monospace.Destroy();
 244 }