Add an enum to represent text rendering modes.

Review-Url: https://codereview.chromium.org/1999553002

1 files changed, 32 insertions, 1 deletions

diff --git a/core/fpdfapi/fpdf_page/cpdf_textstatedata.cpp b/core/fpdfapi/fpdf_page/cpdf_textstatedata.cpp
index 5cd6061542..e60af0076e 100644
--- a/core/fpdfapi/fpdf_page/cpdf_textstatedata.cpp
+++ b/core/fpdfapi/fpdf_page/cpdf_textstatedata.cpp
@@ -10,13 +10,44 @@
 #include "core/fpdfapi/fpdf_page/pageint.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
 
+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;
+  }
+}
+
 CPDF_TextStateData::CPDF_TextStateData()
     : m_pFont(nullptr),
       m_pDocument(nullptr),
       m_FontSize(1.0f),
       m_CharSpace(0),
       m_WordSpace(0),
-      m_TextMode(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;