// 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/font/cpdf_font.h" #include "core/fpdfapi/page/cpdf_docpagedata.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; } }