Change FXDIB_BLEND_FOO typedefs to an enum class.

BUG=pdfium:1085

Change-Id: Ieb43d4588e1d689e327e428dcbbf7adba45ce178
Reviewed-on: https://pdfium-review.googlesource.com/c/44545
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

1 files changed, 10 insertions, 13 deletions

diff --git a/fpdfsdk/fpdf_editpage.cpp b/fpdfsdk/fpdf_editpage.cpp
index 981baec70a..47f4caa672 100644
--- a/fpdfsdk/fpdf_editpage.cpp
+++ b/fpdfsdk/fpdf_editpage.cpp
@@ -486,8 +486,7 @@ FPDFPageObj_HasTransparency(FPDF_PAGEOBJECT pageObject) {
   if (!pPageObj)
     return false;
 
-  int blend_type = pPageObj->m_GeneralState.GetBlendType();
-  if (blend_type != FXDIB_BLEND_NORMAL)
+  if (pPageObj->m_GeneralState.GetBlendType() != BlendMode::kNormal)
     return true;
 
   const CPDF_Dictionary* pSMaskDict =
@@ -498,20 +497,18 @@ FPDFPageObj_HasTransparency(FPDF_PAGEOBJECT pageObject) {
   if (pPageObj->m_GeneralState.GetFillAlpha() != 1.0f)
     return true;
 
-  if (pPageObj->IsPath() && pPageObj->m_GeneralState.GetStrokeAlpha() != 1.0f) {
+  if (pPageObj->IsPath() && pPageObj->m_GeneralState.GetStrokeAlpha() != 1.0f)
     return true;
-  }
 
-  if (pPageObj->IsForm()) {
-    const CPDF_Form* pForm = pPageObj->AsForm()->form();
-    if (pForm) {
-      const CPDF_Transparency& trans = pForm->GetTransparency();
-      if (trans.IsGroup() || trans.IsIsolated())
-        return true;
-    }
-  }
+  if (!pPageObj->IsForm())
+    return false;
 
-  return false;
+  const CPDF_Form* pForm = pPageObj->AsForm()->form();
+  if (!pForm)
+    return false;
+
+  const CPDF_Transparency& trans = pForm->GetTransparency();
+  return trans.IsGroup() || trans.IsIsolated();
 }
 
 FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV