// Copyright 2016 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
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#include "core/fpdfapi/fpdf_page/cpdf_textstate.h"
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#include "core/fpdfapi/fpdf_page/pageint.h"
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#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
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void CPDF_TextState::SetFont(CPDF_Font* pFont) {
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CPDF_TextStateData* pStateData = GetModify();
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if (pStateData) {
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CPDF_Document* pDoc = pStateData->m_pDocument;
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CPDF_DocPageData* pPageData = pDoc ? pDoc->GetPageData() : nullptr;
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if (pPageData && pStateData->m_pFont && !pPageData->IsForceClear()) {
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pPageData->ReleaseFont(pStateData->m_pFont->GetFontDict());
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}
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pStateData->m_pDocument = pFont ? pFont->m_pDocument : nullptr;
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pStateData->m_pFont = pFont;
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}
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}
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FX_FLOAT CPDF_TextState::GetFontSizeV() const {
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FX_FLOAT* pMatrix = GetMatrix();
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FX_FLOAT unit = FXSYS_sqrt2(pMatrix[1], pMatrix[3]);
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FX_FLOAT size = unit * GetFontSize();
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return (FX_FLOAT)FXSYS_fabs(size);
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}
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FX_FLOAT CPDF_TextState::GetFontSizeH() const {
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FX_FLOAT* pMatrix = GetMatrix();
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FX_FLOAT unit = FXSYS_sqrt2(pMatrix[0], pMatrix[2]);
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FX_FLOAT size = unit * GetFontSize();
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return (FX_FLOAT)FXSYS_fabs(size);
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}
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FX_FLOAT CPDF_TextState::GetBaselineAngle() const {
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FX_FLOAT* m_Matrix = GetMatrix();
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return FXSYS_atan2(m_Matrix[2], m_Matrix[0]);
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}
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FX_FLOAT CPDF_TextState::GetShearAngle() const {
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FX_FLOAT* m_Matrix = GetMatrix();
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FX_FLOAT shear_angle = FXSYS_atan2(m_Matrix[1], m_Matrix[3]);
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return GetBaselineAngle() + shear_angle;
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}
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