1 files changed, 47 insertions, 0 deletions
diff --git a/core/fpdfapi/fpdf_page/cpdf_textstate.cpp b/core/fpdfapi/fpdf_page/cpdf_textstate.cpp
new file mode 100644
index 0000000000..f56d58ed0a
--- /dev/null
+++ b/core/fpdfapi/fpdf_page/cpdf_textstate.cpp
@@ -0,0 +1,47 @@
+// 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/fpdf_page/cpdf_textstate.h"
+#include "core/fpdfapi/fpdf_page/pageint.h"
+#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
+
+void CPDF_TextState::SetFont(CPDF_Font* pFont) {
+  CPDF_TextStateData* pStateData = GetModify();
+  if (pStateData) {
+    CPDF_Document* pDoc = pStateData->m_pDocument;
+    CPDF_DocPageData* pPageData = pDoc ? pDoc->GetPageData() : NULL;
+    if (pPageData && pStateData->m_pFont && !pPageData->IsForceClear()) {
+      pPageData->ReleaseFont(pStateData->m_pFont->GetFontDict());
+    }
+    pStateData->m_pDocument = pFont ? pFont->m_pDocument : NULL;
+    pStateData->m_pFont = pFont;
+  }
+}
+
+FX_FLOAT CPDF_TextState::GetFontSizeV() const {
+  FX_FLOAT* pMatrix = GetMatrix();
+  FX_FLOAT unit = FXSYS_sqrt2(pMatrix[1], pMatrix[3]);
+  FX_FLOAT size = unit * GetFontSize();
+  return (FX_FLOAT)FXSYS_fabs(size);
+}
+
+FX_FLOAT CPDF_TextState::GetFontSizeH() const {
+  FX_FLOAT* pMatrix = GetMatrix();
+  FX_FLOAT unit = FXSYS_sqrt2(pMatrix[0], pMatrix[2]);
+  FX_FLOAT size = unit * GetFontSize();
+  return (FX_FLOAT)FXSYS_fabs(size);
+}
+
+FX_FLOAT CPDF_TextState::GetBaselineAngle() const {
+  FX_FLOAT* m_Matrix = GetMatrix();
+  return FXSYS_atan2(m_Matrix[2], m_Matrix[0]);
+}
+
+FX_FLOAT CPDF_TextState::GetShearAngle() const {
+  FX_FLOAT* m_Matrix = GetMatrix();
+  FX_FLOAT shear_angle = FXSYS_atan2(m_Matrix[1], m_Matrix[3]);
+  return GetBaselineAngle() + shear_angle;
+}