source/graphics/FontMetrics.cpp

   1 /* Copyright (C) 2013 Wildfire Games.
   2  * This file is part of 0 A.D.
   3  *
   4  * 0 A.D. is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * 0 A.D. is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include "precompiled.h"
  19 #include "FontMetrics.h"
  20
  21 #include "graphics/Font.h"
  22 #include "graphics/FontManager.h"
  23 #include "ps/Filesystem.h"
  24 #include "ps/CLogger.h"
  25 #include "renderer/Renderer.h"
  26
  27 CFontMetrics::CFontMetrics(CStrIntern font)
  28 {
  29         m_Font = g_Renderer.GetFontManager().LoadFont(font);
  30 }
  31
  32 int CFontMetrics::GetLineSpacing() const
  33 {
  34         // Return some arbitrary default if the font failed to load, so that the
  35         // user of CFontMetrics doesn't have to care about failures
  36         if (!m_Font)
  37                 return 12;
  38         return m_Font->GetLineSpacing();
  39 }
  40
  41 int CFontMetrics::GetHeight() const
  42 {
  43         if (!m_Font)
  44                 return 6;
  45         return m_Font->GetHeight();
  46 }
  47
  48 int CFontMetrics::GetCharacterWidth(wchar_t c) const
  49 {
  50         if (!m_Font)
  51                 return 6;
  52         return m_Font->GetCharacterWidth(c);
  53 }
  54
  55 void CFontMetrics::CalculateStringSize(const wchar_t* string, int& w, int& h) const
  56 {
  57         if (!m_Font)
  58                 w = h = 0;
  59         else
  60                 m_Font->CalculateStringSize(string, w, h);
  61 }