| // 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); |
| } |
| |
| float CPDF_TextState::GetFontSize() const { |
| return m_Ref.GetObject()->m_FontSize; |
| } |
| |
| void CPDF_TextState::SetFontSize(float size) { |
| m_Ref.GetPrivateCopy()->m_FontSize = size; |
| } |
| |
| const float* CPDF_TextState::GetMatrix() const { |
| return m_Ref.GetObject()->m_Matrix; |
| } |
| |
| float* CPDF_TextState::GetMutableMatrix() { |
| return m_Ref.GetPrivateCopy()->m_Matrix; |
| } |
| |
| float CPDF_TextState::GetCharSpace() const { |
| return m_Ref.GetObject()->m_CharSpace; |
| } |
| |
| void CPDF_TextState::SetCharSpace(float sp) { |
| m_Ref.GetPrivateCopy()->m_CharSpace = sp; |
| } |
| |
| float CPDF_TextState::GetWordSpace() const { |
| return m_Ref.GetObject()->m_WordSpace; |
| } |
| |
| void CPDF_TextState::SetWordSpace(float sp) { |
| m_Ref.GetPrivateCopy()->m_WordSpace = sp; |
| } |
| |
| float CPDF_TextState::GetFontSizeV() const { |
| return m_Ref.GetObject()->GetFontSizeV(); |
| } |
| |
| float CPDF_TextState::GetFontSizeH() const { |
| return m_Ref.GetObject()->GetFontSizeH(); |
| } |
| |
| float CPDF_TextState::GetBaselineAngle() const { |
| return m_Ref.GetObject()->GetBaselineAngle(); |
| } |
| |
| 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 float* CPDF_TextState::GetCTM() const { |
| return m_Ref.GetObject()->m_CTM; |
| } |
| |
| 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() { |
| ReleaseFont(); |
| } |
| |
| void CPDF_TextState::TextData::SetFont(CPDF_Font* pFont) { |
| ReleaseFont(); |
| m_pDocument = pFont ? pFont->GetDocument() : nullptr; |
| m_pFont = pFont; |
| } |
| |
| float CPDF_TextState::TextData::GetFontSizeV() const { |
| return fabs(FXSYS_sqrt2(m_Matrix[1], m_Matrix[3]) * m_FontSize); |
| } |
| |
| float CPDF_TextState::TextData::GetFontSizeH() const { |
| return fabs(FXSYS_sqrt2(m_Matrix[0], m_Matrix[2]) * m_FontSize); |
| } |
| |
| float CPDF_TextState::TextData::GetBaselineAngle() const { |
| return atan2(m_Matrix[2], m_Matrix[0]); |
| } |
| |
| float CPDF_TextState::TextData::GetShearAngle() const { |
| return GetBaselineAngle() + atan2(m_Matrix[1], m_Matrix[3]); |
| } |
| |
| void CPDF_TextState::TextData::ReleaseFont() { |
| if (!m_pDocument || !m_pFont) |
| return; |
| |
| CPDF_DocPageData* pPageData = m_pDocument->GetPageData(); |
| if (pPageData && !pPageData->IsForceClear()) |
| pPageData->ReleaseFont(m_pFont->GetFontDict()); |
| } |
| |
| 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; |
| } |
| } |