Line data    Source code

       1             : /* Copyright (C) 2022 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 "Font.h"
      20             : 
      21             : #include "graphics/FontManager.h"
      22             : #include "ps/Filesystem.h"
      23             : #include "ps/CLogger.h"
      24             : #include "renderer/Renderer.h"
      25             : 
      26             : #include <map>
      27             : #include <string>
      28             : 
      29           5 : CFont::GlyphMap::GlyphMap()
      30             : {
      31           5 :     memset(m_Data, 0, sizeof(m_Data));
      32           5 : }
      33             : 
      34          10 : CFont::GlyphMap::~GlyphMap()
      35             : {
      36        1285 :     for (size_t i = 0; i < ARRAY_SIZE(m_Data); i++)
      37        1280 :         delete[] m_Data[i];
      38           5 : }
      39             : 
      40        5905 : void CFont::GlyphMap::set(u16 i, const GlyphData& val)
      41             : {
      42        5905 :     if (!m_Data[i >> 8])
      43          57 :         m_Data[i >> 8] = new GlyphData[256]();
      44        5905 :     m_Data[i >> 8][i & 0xff] = val;
      45        5905 :     m_Data[i >> 8][i & 0xff].defined = 1;
      46        5905 : }
      47             : 
      48        1148 : int CFont::GetCharacterWidth(wchar_t c) const
      49             : {
      50        1148 :     const GlyphData* g = m_Glyphs.get(c);
      51             : 
      52        1148 :     if (!g)
      53           0 :         g = m_Glyphs.get(0xFFFD); // Use the missing glyph symbol
      54             : 
      55        1148 :     if (!g)
      56           0 :         return 0;
      57             : 
      58        1148 :     return g->xadvance;
      59             : }
      60             : 
      61        1937 : void CFont::CalculateStringSize(const wchar_t* string, int& width, int& height) const
      62             : {
      63        1937 :     width = 0;
      64        1937 :     height = m_Height;
      65             : 
      66             :     // Compute the width as the width of the longest line.
      67        1937 :     int lineWidth = 0;
      68       26091 :     for (const wchar_t* c = string; *c != '\0'; c++)
      69             :     {
      70       24154 :         const GlyphData* g = m_Glyphs.get(*c);
      71             : 
      72       24154 :         if (!g)
      73          45 :             g = m_Glyphs.get(0xFFFD); // Use the missing glyph symbol
      74             : 
      75       24154 :         if (g)
      76       24154 :             lineWidth += g->xadvance; // Add the character's advance distance
      77             : 
      78       24154 :         if (*c == L'\n')
      79             :         {
      80          45 :             height += m_LineSpacing;
      81          45 :             width = std::max(width, lineWidth);
      82          45 :             lineWidth = 0;
      83             :         }
      84             :     }
      85        1937 :     width = std::max(width, lineWidth);
      86        1940 : }