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// 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/page/cpdf_textstate.h"
#include "core/fpdfapi/page/cpdf_docpagedata.h"
#include "core/fpdfapi/font/cpdf_font.h"
#include "core/fpdfapi/parser/cpdf_document.h"
CPDF_TextState::CPDF_TextState() {}
CPDF_TextState::~CPDF_TextState() {}
void CPDF_TextState::Emplace() {
m_Ref.Emplace();
}
CPDF_Font* CPDF_TextState::GetFont() const {
return m_Ref.GetObject()->m_pFont;
}
void CPDF_TextState::SetFont(CPDF_Font* pFont) {
m_Ref.GetPrivateCopy()->SetFont(pFont);
}
FX_FLOAT CPDF_TextState::GetFontSize() const {
return m_Ref.GetObject()->m_FontSize;
}
void CPDF_TextState::SetFontSize(FX_FLOAT size) {
m_Ref.GetPrivateCopy()->m_FontSize = size;
}
const FX_FLOAT* CPDF_TextState::GetMatrix() const {
return m_Ref.GetObject()->m_Matrix;
}
FX_FLOAT* CPDF_TextState::GetMutableMatrix() {
return m_Ref.GetPrivateCopy()->m_Matrix;
}
FX_FLOAT CPDF_TextState::GetCharSpace() const {
return m_Ref.GetObject()->m_CharSpace;
}
void CPDF_TextState::SetCharSpace(FX_FLOAT sp) {
m_Ref.GetPrivateCopy()->m_CharSpace = sp;
}
FX_FLOAT CPDF_TextState::GetWordSpace() const {
return m_Ref.GetObject()->m_WordSpace;
}
void CPDF_TextState::SetWordSpace(FX_FLOAT sp) {
m_Ref.GetPrivateCopy()->m_WordSpace = sp;
}
FX_FLOAT CPDF_TextState::GetFontSizeV() const {
return m_Ref.GetObject()->GetFontSizeV();
}
FX_FLOAT CPDF_TextState::GetFontSizeH() const {
return m_Ref.GetObject()->GetFontSizeH();
}
FX_FLOAT CPDF_TextState::GetBaselineAngle() const {
return m_Ref.GetObject()->GetBaselineAngle();
}
FX_FLOAT CPDF_TextState::GetShearAngle() const {
return m_Ref.GetObject()->GetShearAngle();
}
TextRenderingMode CPDF_TextState::GetTextMode() const {
return m_Ref.GetObject()->m_TextMode;
}
void CPDF_TextState::SetTextMode(TextRenderingMode mode) {
m_Ref.GetPrivateCopy()->m_TextMode = mode;
}
const FX_FLOAT* CPDF_TextState::GetCTM() const {
return m_Ref.GetObject()->m_CTM;
}
FX_FLOAT* CPDF_TextState::GetMutableCTM() {
return m_Ref.GetPrivateCopy()->m_CTM;
}
CPDF_TextState::TextData::TextData()
: m_pFont(nullptr),
m_pDocument(nullptr),
m_FontSize(1.0f),
m_CharSpace(0),
m_WordSpace(0),
m_TextMode(TextRenderingMode::MODE_FILL) {
m_Matrix[0] = m_Matrix[3] = 1.0f;
m_Matrix[1] = m_Matrix[2] = 0;
m_CTM[0] = m_CTM[3] = 1.0f;
m_CTM[1] = m_CTM[2] = 0;
}
CPDF_TextState::TextData::TextData(const TextData& that)
: m_pFont(that.m_pFont),
m_pDocument(that.m_pDocument),
m_FontSize(that.m_FontSize),
m_CharSpace(that.m_CharSpace),
m_WordSpace(that.m_WordSpace),
m_TextMode(that.m_TextMode) {
for (int i = 0; i < 4; ++i)
m_Matrix[i] = that.m_Matrix[i];
for (int i = 0; i < 4; ++i)
m_CTM[i] = that.m_CTM[i];
if (m_pDocument && m_pFont) {
m_pFont = m_pDocument->GetPageData()->GetFont(m_pFont->GetFontDict());
}
}
CPDF_TextState::TextData::~TextData() {
if (m_pDocument && m_pFont) {
CPDF_DocPageData* pPageData = m_pDocument->GetPageData();
if (pPageData && !pPageData->IsForceClear())
pPageData->ReleaseFont(m_pFont->GetFontDict());
}
}
void CPDF_TextState::TextData::SetFont(CPDF_Font* pFont) {
CPDF_Document* pDoc = m_pDocument;
CPDF_DocPageData* pPageData = pDoc ? pDoc->GetPageData() : nullptr;
if (pPageData && m_pFont && !pPageData->IsForceClear())
pPageData->ReleaseFont(m_pFont->GetFontDict());
m_pDocument = pFont ? pFont->m_pDocument : nullptr;
m_pFont = pFont;
}
FX_FLOAT CPDF_TextState::TextData::GetFontSizeV() const {
return FXSYS_fabs(FXSYS_sqrt2(m_Matrix[1], m_Matrix[3]) * m_FontSize);
}
FX_FLOAT CPDF_TextState::TextData::GetFontSizeH() const {
return FXSYS_fabs(FXSYS_sqrt2(m_Matrix[0], m_Matrix[2]) * m_FontSize);
}
FX_FLOAT CPDF_TextState::TextData::GetBaselineAngle() const {
return FXSYS_atan2(m_Matrix[2], m_Matrix[0]);
}
FX_FLOAT CPDF_TextState::TextData::GetShearAngle() const {
return GetBaselineAngle() + FXSYS_atan2(m_Matrix[1], m_Matrix[3]);
}
bool SetTextRenderingModeFromInt(int iMode, TextRenderingMode* mode) {
if (iMode < 0 || iMode > 7)
return false;
*mode = static_cast<TextRenderingMode>(iMode);
return true;
}
bool TextRenderingModeIsClipMode(const TextRenderingMode& mode) {
switch (mode) {
case TextRenderingMode::MODE_FILL_CLIP:
case TextRenderingMode::MODE_STROKE_CLIP:
case TextRenderingMode::MODE_FILL_STROKE_CLIP:
case TextRenderingMode::MODE_CLIP:
return true;
default:
return false;
}
}
bool TextRenderingModeIsStrokeMode(const TextRenderingMode& mode) {
switch (mode) {
case TextRenderingMode::MODE_STROKE:
case TextRenderingMode::MODE_FILL_STROKE:
case TextRenderingMode::MODE_STROKE_CLIP:
case TextRenderingMode::MODE_FILL_STROKE_CLIP:
return true;
default:
return false;
}
}
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