Cleanup CXFA_FontData

This CL makes the various methods const and removes out params from
CXFA_FontData.

Change-Id: I85268906a2454c23b73d5724c2556758246791cb
Reviewed-on: https://pdfium-review.googlesource.com/18970
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>

4 files changed, 30 insertions, 29 deletions

diff --git a/xfa/fxfa/cxfa_textparser.cpp b/xfa/fxfa/cxfa_textparser.cpp
index b74df3d14e..8981799d83 100644
--- a/xfa/fxfa/cxfa_textparser.cpp
+++ b/xfa/fxfa/cxfa_textparser.cpp
@@ -327,7 +327,7 @@ RetainPtr<CFGAS_GEFont> CXFA_TextParser::GetFont(
   uint32_t dwStyle = 0;
   CXFA_FontData fontData = pTextProvider->GetFontData();
   if (fontData.HasValidNode()) {
-    fontData.GetTypeface(wsFamily);
+    wsFamily = fontData.GetTypeface();
     if (fontData.IsBold())
       dwStyle |= FXFONT_BOLD;
     if (fontData.IsItalic())
diff --git a/xfa/fxfa/cxfa_widgetacc.cpp b/xfa/fxfa/cxfa_widgetacc.cpp
index 1f804e6ed2..5bff539366 100644
--- a/xfa/fxfa/cxfa_widgetacc.cpp
+++ b/xfa/fxfa/cxfa_widgetacc.cpp
@@ -1493,7 +1493,8 @@ RetainPtr<CFGAS_GEFont> CXFA_WidgetAcc::GetFDEFont() {
       dwFontStyle |= FXFONT_BOLD;
     if (fontData.IsItalic())
       dwFontStyle |= FXFONT_ITALIC;
-    fontData.GetTypeface(wsFontName);
+
+    wsFontName = fontData.GetTypeface();
   }
 
   auto* pDoc = GetDoc();
diff --git a/xfa/fxfa/parser/cxfa_fontdata.cpp b/xfa/fxfa/parser/cxfa_fontdata.cpp
index 17bd6b8f3f..20fe68face 100644
--- a/xfa/fxfa/parser/cxfa_fontdata.cpp
+++ b/xfa/fxfa/parser/cxfa_fontdata.cpp
@@ -13,27 +13,27 @@
 
 CXFA_FontData::CXFA_FontData(CXFA_Node* pNode) : CXFA_DataData(pNode) {}
 
-float CXFA_FontData::GetBaselineShift() {
+float CXFA_FontData::GetBaselineShift() const {
   return m_pNode->JSNode()
       ->GetMeasure(XFA_Attribute::BaselineShift)
       .ToUnit(XFA_Unit::Pt);
 }
 
-float CXFA_FontData::GetHorizontalScale() {
+float CXFA_FontData::GetHorizontalScale() const {
   WideString wsValue =
       m_pNode->JSNode()->GetCData(XFA_Attribute::FontHorizontalScale);
   int32_t iScale = FXSYS_wtoi(wsValue.c_str());
   return iScale > 0 ? (float)iScale : 100.0f;
 }
 
-float CXFA_FontData::GetVerticalScale() {
+float CXFA_FontData::GetVerticalScale() const {
   WideString wsValue =
       m_pNode->JSNode()->GetCData(XFA_Attribute::FontVerticalScale);
   int32_t iScale = FXSYS_wtoi(wsValue.c_str());
   return iScale > 0 ? (float)iScale : 100.0f;
 }
 
-float CXFA_FontData::GetLetterSpacing() {
+float CXFA_FontData::GetLetterSpacing() const {
   WideString wsValue =
       m_pNode->JSNode()->GetCData(XFA_Attribute::LetterSpacing);
   CXFA_Measurement ms(wsValue.AsStringView());
@@ -42,36 +42,36 @@ float CXFA_FontData::GetLetterSpacing() {
   return ms.ToUnit(XFA_Unit::Pt);
 }
 
-int32_t CXFA_FontData::GetLineThrough() {
+int32_t CXFA_FontData::GetLineThrough() const {
   return m_pNode->JSNode()->GetInteger(XFA_Attribute::LineThrough);
 }
 
-int32_t CXFA_FontData::GetUnderline() {
+int32_t CXFA_FontData::GetUnderline() const {
   return m_pNode->JSNode()->GetInteger(XFA_Attribute::Underline);
 }
 
-int32_t CXFA_FontData::GetUnderlinePeriod() {
+int32_t CXFA_FontData::GetUnderlinePeriod() const {
   return m_pNode->JSNode()
       ->TryEnum(XFA_Attribute::UnderlinePeriod, true)
       .value_or(XFA_ATTRIBUTEENUM_All);
 }
 
-float CXFA_FontData::GetFontSize() {
+float CXFA_FontData::GetFontSize() const {
   return m_pNode->JSNode()
       ->GetMeasure(XFA_Attribute::Size)
       .ToUnit(XFA_Unit::Pt);
 }
 
-void CXFA_FontData::GetTypeface(WideString& wsTypeFace) {
-  wsTypeFace = m_pNode->JSNode()->GetCData(XFA_Attribute::Typeface);
+WideString CXFA_FontData::GetTypeface() const {
+  return m_pNode->JSNode()->GetCData(XFA_Attribute::Typeface);
 }
 
-bool CXFA_FontData::IsBold() {
+bool CXFA_FontData::IsBold() const {
   return m_pNode->JSNode()->GetEnum(XFA_Attribute::Weight) ==
          XFA_ATTRIBUTEENUM_Bold;
 }
 
-bool CXFA_FontData::IsItalic() {
+bool CXFA_FontData::IsItalic() const {
   return m_pNode->JSNode()->GetEnum(XFA_Attribute::Posture) ==
          XFA_ATTRIBUTEENUM_Italic;
 }
@@ -81,7 +81,7 @@ void CXFA_FontData::SetColor(FX_ARGB color) {
       .SetColor(color);
 }
 
-FX_ARGB CXFA_FontData::GetColor() {
+FX_ARGB CXFA_FontData::GetColor() const {
   CXFA_FillData fillData(m_pNode->GetChild(0, XFA_Element::Fill, false));
   return fillData.HasValidNode() ? fillData.GetColor(true) : 0xFF000000;
 }
diff --git a/xfa/fxfa/parser/cxfa_fontdata.h b/xfa/fxfa/parser/cxfa_fontdata.h
index ae5e4ac961..906337a88b 100644
--- a/xfa/fxfa/parser/cxfa_fontdata.h
+++ b/xfa/fxfa/parser/cxfa_fontdata.h
@@ -16,20 +16,20 @@ class CXFA_FontData : public CXFA_DataData {
  public:
   explicit CXFA_FontData(CXFA_Node* pNode);
 
-  float GetBaselineShift();
-  float GetHorizontalScale();
-  float GetVerticalScale();
-  float GetLetterSpacing();
-  int32_t GetLineThrough();
-  int32_t GetUnderline();
-  int32_t GetUnderlinePeriod();
-  float GetFontSize();
-  void GetTypeface(WideString& wsTypeFace);
-
-  bool IsBold();
-  bool IsItalic();
-
-  FX_ARGB GetColor();
+  float GetBaselineShift() const;
+  float GetHorizontalScale() const;
+  float GetVerticalScale() const;
+  float GetLetterSpacing() const;
+  int32_t GetLineThrough() const;
+  int32_t GetUnderline() const;
+  int32_t GetUnderlinePeriod() const;
+  float GetFontSize() const;
+  WideString GetTypeface() const;
+
+  bool IsBold() const;
+  bool IsItalic() const;
+
+  FX_ARGB GetColor() const;
   void SetColor(FX_ARGB color);
 };