Line data    Source code

       1             : /* Copyright (C) 2021 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             : #ifndef INCLUDED_FONTMETRICS
      19             : #define INCLUDED_FONTMETRICS
      20             : 
      21             : class CFont;
      22             : class CStrIntern;
      23             : 
      24             : /**
      25             :  * Helper class for measuring sizes of text.
      26             :  * This will load the font when necessary, and will return plausible values
      27             :  * if loading fails (since misrendering is better than crashing).
      28             :  */
      29        3083 : class CFontMetrics
      30             : {
      31             : public:
      32             :     CFontMetrics(CStrIntern font);
      33             : 
      34             :     int GetLineSpacing() const;
      35             :     int GetHeight() const;
      36             :     int GetCharacterWidth(wchar_t c) const;
      37             :     void CalculateStringSize(const wchar_t* string, int& w, int& h) const;
      38             : 
      39             : private:
      40             :     std::shared_ptr<CFont> m_Font;
      41             : };
      42             : 
      43             : #endif // INCLUDED_FONTMETRICS