blob: ff9a579abd7f18d495170ebc0b33f199e09a0c9d [file] [log] [blame]
// Copyright 2016 The PDFium Authors
// 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/font/cpdf_type3char.h"
#include <utility>
#include "core/fxcrt/fx_system.h"
#include "core/fxge/dib/cfx_dibitmap.h"
#include "core/fxge/dib/fx_dib.h"
namespace {
constexpr float kTextUnitInGlyphUnit = 1000.0f;
} // namespace
CPDF_Type3Char::CPDF_Type3Char() = default;
CPDF_Type3Char::~CPDF_Type3Char() = default;
// static
float CPDF_Type3Char::TextUnitToGlyphUnit(float fTextUnit) {
return fTextUnit * kTextUnitInGlyphUnit;
}
// static
void CPDF_Type3Char::TextUnitRectToGlyphUnitRect(CFX_FloatRect* pRect) {
pRect->Scale(kTextUnitInGlyphUnit);
}
bool CPDF_Type3Char::LoadBitmapFromSoleImageOfForm() {
if (m_pBitmap || !m_pForm)
return true;
if (m_bColored)
return false;
auto result = m_pForm->GetBitmapAndMatrixFromSoleImageOfForm();
if (!result.has_value())
return false;
std::tie(m_pBitmap, m_ImageMatrix) = result.value();
m_pForm.reset();
return true;
}
void CPDF_Type3Char::InitializeFromStreamData(bool bColored,
pdfium::span<const float> pData) {
m_bColored = bColored;
m_Width = FXSYS_roundf(TextUnitToGlyphUnit(pData[0]));
m_BBox.left = FXSYS_roundf(TextUnitToGlyphUnit(pData[2]));
m_BBox.bottom = FXSYS_roundf(TextUnitToGlyphUnit(pData[3]));
m_BBox.right = FXSYS_roundf(TextUnitToGlyphUnit(pData[4]));
m_BBox.top = FXSYS_roundf(TextUnitToGlyphUnit(pData[5]));
}
void CPDF_Type3Char::WillBeDestroyed() {
// Break cycles.
m_pForm.reset();
}
void CPDF_Type3Char::Transform(CPDF_Font::FormIface* pForm,
const CFX_Matrix& matrix) {
m_Width = m_Width * matrix.GetXUnit() + 0.5f;
CFX_FloatRect char_rect;
if (m_BBox.right <= m_BBox.left || m_BBox.bottom >= m_BBox.top) {
char_rect = pForm->CalcBoundingBox();
TextUnitRectToGlyphUnitRect(&char_rect);
} else {
char_rect = CFX_FloatRect(m_BBox);
}
m_BBox = matrix.TransformRect(char_rect).ToRoundedFxRect();
}
void CPDF_Type3Char::SetForm(std::unique_ptr<CPDF_Font::FormIface> pForm) {
m_pForm = std::move(pForm);
}
RetainPtr<CFX_DIBitmap> CPDF_Type3Char::GetBitmap() {
return m_pBitmap;
}