| // Copyright 2016 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "core/fpdfapi/fpdf_render/cpdf_type3glyphs.h" |
| |
| #include <map> |
| |
| #include "core/fxge/include/fx_font.h" |
| |
| CPDF_Type3Glyphs::CPDF_Type3Glyphs() |
| : m_TopBlueCount(0), m_BottomBlueCount(0) {} |
| |
| CPDF_Type3Glyphs::~CPDF_Type3Glyphs() { |
| for (const auto& pair : m_GlyphMap) |
| delete pair.second; |
| } |
| |
| static int _AdjustBlue(FX_FLOAT pos, int& count, int blues[]) { |
| FX_FLOAT min_distance = 1000000.0f; |
| int closest_pos = -1; |
| for (int i = 0; i < count; i++) { |
| FX_FLOAT distance = FXSYS_fabs(pos - static_cast<FX_FLOAT>(blues[i])); |
| if (distance < 1.0f * 80.0f / 100.0f && distance < min_distance) { |
| min_distance = distance; |
| closest_pos = i; |
| } |
| } |
| if (closest_pos >= 0) |
| return blues[closest_pos]; |
| int new_pos = FXSYS_round(pos); |
| if (count == TYPE3_MAX_BLUES) |
| return new_pos; |
| blues[count++] = new_pos; |
| return new_pos; |
| } |
| |
| void CPDF_Type3Glyphs::AdjustBlue(FX_FLOAT top, |
| FX_FLOAT bottom, |
| int& top_line, |
| int& bottom_line) { |
| top_line = _AdjustBlue(top, m_TopBlueCount, m_TopBlue); |
| bottom_line = _AdjustBlue(bottom, m_BottomBlueCount, m_BottomBlue); |
| } |