core/fpdfapi/fpdf_font/cpdf_type3char.cpp

// 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_font/cpdf_type3char.h"

#include "core/fpdfapi/fpdf_page/include/cpdf_form.h"
#include "core/fpdfapi/fpdf_page/include/cpdf_image.h"
#include "core/fpdfapi/fpdf_page/include/cpdf_imageobject.h"
#include "core/fpdfapi/fpdf_page/include/cpdf_pageobject.h"
#include "core/fxge/include/fx_dib.h"

CPDF_Type3Char::CPDF_Type3Char(CPDF_Form* pForm)
    : m_pForm(pForm), m_pBitmap(nullptr), m_bColored(FALSE) {}

CPDF_Type3Char::~CPDF_Type3Char() {
  delete m_pForm;
  delete m_pBitmap;
}

FX_BOOL CPDF_Type3Char::LoadBitmap(CPDF_RenderContext* pContext) {
  if (m_pBitmap || !m_pForm) {
    return TRUE;
  }
  if (m_pForm->GetPageObjectList()->size() == 1 && !m_bColored) {
    auto& pPageObj = m_pForm->GetPageObjectList()->front();
    if (pPageObj->IsImage()) {
      m_ImageMatrix = pPageObj->AsImage()->m_Matrix;
      const CFX_DIBSource* pSource =
          pPageObj->AsImage()->m_pImage->LoadDIBSource();
      if (pSource) {
        m_pBitmap = pSource->Clone();
        delete pSource;
      }
      delete m_pForm;
      m_pForm = NULL;
      return TRUE;
    }
  }
  return FALSE;
}