Remove dead code from CPDF_InterForm.

core/fpdfdoc/doc_formcontrol.cpp

 // Copyright 2014 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 <algorithm>
 
 #include "core/fpdfapi/fpdf_page/include/cpdf_form.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h"
 #include "core/fpdfapi/fpdf_render/include/cpdf_rendercontext.h"
 #include "core/fpdfdoc/include/fpdf_doc.h"
 
+namespace {
+
+const FX_CHAR* const g_sHighlightingMode[] = {
+    // Must match order of HighlightingMode enum.
+    "N", "I", "O", "P", "T"};
+
+}  // namespace
+
 CPDF_FormControl::CPDF_FormControl(CPDF_FormField* pField,
-                                   CPDF_Dictionary* pWidgetDict) {
-  m_pField = pField;
-  m_pWidgetDict = pWidgetDict;
-  m_pForm = m_pField->m_pForm;
-}
+                                   CPDF_Dictionary* pWidgetDict)
+    : m_pField(pField),
+      m_pWidgetDict(pWidgetDict),
+      m_pForm(m_pField->m_pForm) {}
+
 CFX_FloatRect CPDF_FormControl::GetRect() const {
   return m_pWidgetDict->GetRectBy("Rect");
 }
+
 CFX_ByteString CPDF_FormControl::GetOnStateName() const {
   ASSERT(GetType() == CPDF_FormField::CheckBox ||
          GetType() == CPDF_FormField::RadioButton);
   CFX_ByteString csOn;
   CPDF_Dictionary* pAP = m_pWidgetDict->GetDictBy("AP");
-  if (!pAP) {
+  if (!pAP)
     return csOn;
-  }
+
   CPDF_Dictionary* pN = pAP->GetDictBy("N");
-  if (!pN) {
+  if (!pN)
     return csOn;
-  }
+
   for (const auto& it : *pN) {
-    if (it.first != "Off") {
+    if (it.first != "Off")
       return it.first;
-    }
   }
   return CFX_ByteString();
 }
+
 void CPDF_FormControl::SetOnStateName(const CFX_ByteString& csOn) {
   ASSERT(GetType() == CPDF_FormField::CheckBox ||
          GetType() == CPDF_FormField::RadioButton);
   CFX_ByteString csValue = csOn;
   if (csValue.IsEmpty()) {
     csValue = "Yes";
   }
   if (csValue == "Off") {
     csValue = "Yes";
   }
@@ skipping 38 matching lines @@
       GetType() == CPDF_FormField::CheckBox) {
     if (ToArray(FPDF_GetFieldAttr(m_pField->m_pDict, "Opt"))) {
       int iIndex = m_pField->GetControlIndex(this);
       csOn.Format("%d", iIndex);
     }
   }
   if (csOn.IsEmpty())
     csOn = "Yes";
   return csOn;
 }
-CFX_WideString CPDF_FormControl::GetExportValue() {
+
+CFX_WideString CPDF_FormControl::GetExportValue() const {
   ASSERT(GetType() == CPDF_FormField::CheckBox ||
          GetType() == CPDF_FormField::RadioButton);
   CFX_ByteString csOn = GetOnStateName();
   if (GetType() == CPDF_FormField::RadioButton ||
       GetType() == CPDF_FormField::CheckBox) {
     if (CPDF_Array* pArray =
             ToArray(FPDF_GetFieldAttr(m_pField->m_pDict, "Opt"))) {
       int iIndex = m_pField->GetControlIndex(this);
       csOn = pArray->GetStringAt(iIndex);
     }
   }
-  if (csOn.IsEmpty()) {
+  if (csOn.IsEmpty())
     csOn = "Yes";
-  }
-  CFX_WideString csWOn = PDF_DecodeText(csOn);
-  return csWOn;
+  return PDF_DecodeText(csOn);
 }
 
 bool CPDF_FormControl::IsChecked() const {
   ASSERT(GetType() == CPDF_FormField::CheckBox ||
          GetType() == CPDF_FormField::RadioButton);
   CFX_ByteString csOn = GetOnStateName();
   CFX_ByteString csAS = m_pWidgetDict->GetStringBy("AS");
   return csAS == csOn;
 }
 
 bool CPDF_FormControl::IsDefaultChecked() const {
   ASSERT(GetType() == CPDF_FormField::CheckBox ||
          GetType() == CPDF_FormField::RadioButton);
   CPDF_Object* pDV = FPDF_GetFieldAttr(m_pField->m_pDict, "DV");
   if (!pDV) {
     return FALSE;
   }
   CFX_ByteString csDV = pDV->GetString();
   CFX_ByteString csOn = GetOnStateName();
   return (csDV == csOn);
 }
 
 void CPDF_FormControl::CheckControl(FX_BOOL bChecked) {
   ASSERT(GetType() == CPDF_FormField::CheckBox ||
          GetType() == CPDF_FormField::RadioButton);
   CFX_ByteString csOn = GetOnStateName();
   CFX_ByteString csOldAS = m_pWidgetDict->GetStringBy("AS", "Off");
   CFX_ByteString csAS = "Off";
-  if (bChecked) {
+  if (bChecked)
     csAS = csOn;
-  }
-  if (csOldAS == csAS) {
+  if (csOldAS == csAS)
     return;
-  }
   m_pWidgetDict->SetAtName("AS", csAS);
-  m_pForm->m_bUpdated = TRUE;
 }
-CPDF_Stream* FPDFDOC_GetAnnotAP(CPDF_Dictionary* pAnnotDict,
-                                CPDF_Annot::AppearanceMode mode);
+
 void CPDF_FormControl::DrawControl(CFX_RenderDevice* pDevice,
                                    CFX_Matrix* pMatrix,
                                    CPDF_Page* pPage,
                                    CPDF_Annot::AppearanceMode mode,
                                    const CPDF_RenderOptions* pOptions) {
-  if (m_pWidgetDict->GetIntegerBy("F") & ANNOTFLAG_HIDDEN) {
+  if (m_pWidgetDict->GetIntegerBy("F") & ANNOTFLAG_HIDDEN)
     return;
-  }
+
   CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pWidgetDict, mode);
-  if (!pStream) {
+  if (!pStream)
     return;
-  }
+
   CFX_FloatRect form_bbox = pStream->GetDict()->GetRectBy("BBox");
   CFX_Matrix form_matrix = pStream->GetDict()->GetMatrixBy("Matrix");
   form_matrix.TransformRect(form_bbox);
   CFX_FloatRect arect = m_pWidgetDict->GetRectBy("Rect");
   CFX_Matrix matrix;
   matrix.MatchRect(arect, form_bbox);
   matrix.Concat(*pMatrix);
   CPDF_Form form(m_pField->m_pForm->m_pDocument,
                  m_pField->m_pForm->m_pFormDict->GetDictBy("DR"), pStream);
   form.ParseContent(nullptr, nullptr, nullptr);
   CPDF_RenderContext context(pPage);
   context.AppendLayer(&form, &matrix);
   context.Render(pDevice, pOptions, nullptr);
 }
-static const FX_CHAR* const g_sHighlightingMode[] = {
-    // Must match order of HiglightingMode enum.
-    "N", "I", "O", "P", "T", nullptr};
+
 CPDF_FormControl::HighlightingMode CPDF_FormControl::GetHighlightingMode() {
-  if (!m_pWidgetDict) {
+  if (!m_pWidgetDict)
     return Invert;
-  }
+
   CFX_ByteString csH = m_pWidgetDict->GetStringBy("H", "I");
-  for (int i = 0; g_sHighlightingMode[i]; ++i) {
+  for (size_t i = 0; i < FX_ArraySize(g_sHighlightingMode); ++i) {
     if (csH == g_sHighlightingMode[i])
       return static_cast<HighlightingMode>(i);
   }
   return Invert;
 }
 
 CPDF_ApSettings CPDF_FormControl::GetMK() const {
   return CPDF_ApSettings(m_pWidgetDict ? m_pWidgetDict->GetDictBy("MK")
                                        : nullptr);
 }
@@ skipping 31 matching lines @@
 
 CPDF_IconFit CPDF_FormControl::GetIconFit() {
   return GetMK().GetIconFit();
 }
 
 int CPDF_FormControl::GetTextPosition() {
   return GetMK().GetTextPosition();
 }
 
 CPDF_Action CPDF_FormControl::GetAction() {
-  if (!m_pWidgetDict) {
+  if (!m_pWidgetDict)
     return CPDF_Action();
-  }
-  if (m_pWidgetDict->KeyExist("A")) {
+
+  if (m_pWidgetDict->KeyExist("A"))
     return CPDF_Action(m_pWidgetDict->GetDictBy("A"));
-  }
+
   CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->m_pDict, "A");
-  if (!pObj) {
+  if (!pObj)
     return CPDF_Action();
-  }
+
   return CPDF_Action(pObj->GetDict());
 }
 
 CPDF_AAction CPDF_FormControl::GetAdditionalAction() {
   if (!m_pWidgetDict)
     return CPDF_AAction();
 
   if (m_pWidgetDict->KeyExist("AA"))
     return CPDF_AAction(m_pWidgetDict->GetDictBy("AA"));
   return m_pField->GetAdditionalAction();
@@ skipping 164 matching lines @@
 }
 
 CPDF_IconFit CPDF_ApSettings::GetIconFit() const {
   return CPDF_IconFit(m_pDict ? m_pDict->GetDictBy("IF") : nullptr);
 }
 
 int CPDF_ApSettings::GetTextPosition() const {
   return m_pDict ? m_pDict->GetIntegerBy("TP", TEXTPOS_CAPTION)
                  : TEXTPOS_CAPTION;
 }