1 // Copyright 2016 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #include "core/fpdfapi/render/cpdf_type3glyphs.h" 8 9 #include <map> 10 11 #include "core/fxge/fx_font.h" 12 13 CPDF_Type3Glyphs::CPDF_Type3Glyphs() 14 : m_TopBlueCount(0), m_BottomBlueCount(0) {} 15 16 CPDF_Type3Glyphs::~CPDF_Type3Glyphs() {} 17 18 static int _AdjustBlue(float pos, int& count, int blues[]) { 19 float min_distance = 1000000.0f; 20 int closest_pos = -1; 21 for (int i = 0; i < count; i++) { 22 float distance = fabs(pos - static_cast<float>(blues[i])); 23 if (distance < 1.0f * 80.0f / 100.0f && distance < min_distance) { 24 min_distance = distance; 25 closest_pos = i; 26 } 27 } 28 if (closest_pos >= 0) 29 return blues[closest_pos]; 30 int new_pos = FXSYS_round(pos); 31 if (count == TYPE3_MAX_BLUES) 32 return new_pos; 33 blues[count++] = new_pos; 34 return new_pos; 35 } 36 37 void CPDF_Type3Glyphs::AdjustBlue(float top, 38 float bottom, 39 int& top_line, 40 int& bottom_line) { 41 top_line = _AdjustBlue(top, m_TopBlueCount, m_TopBlue); 42 bottom_line = _AdjustBlue(bottom, m_BottomBlueCount, m_BottomBlue); 43 } 44
