Split CFDE_CSSPrimitiveValue apart

This CL splits the CFDE_CSSPrimitiveValue class into individual classes per
value type. This moves the numeric itypes out of the FDE_CSSPrimitiveType
list and creates a new CFDE_CSSNumberType list.

Change-Id: I6f55e9e3509de7ff1e82dcf018a1f1c472565e54
Reviewed-on: https://pdfium-review.googlesource.com/2250
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/xfa/fde/css/cfde_cssnumbervalue.cpp b/xfa/fde/css/cfde_cssnumbervalue.cpp
new file mode 100644
index 0000000000..71566ca5a3
--- /dev/null
+++ b/xfa/fde/css/cfde_cssnumbervalue.cpp
@@ -0,0 +1,39 @@
+// Copyright 2017 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 "xfa/fde/css/cfde_cssnumbervalue.h"
+
+CFDE_CSSNumberValue::CFDE_CSSNumberValue(FDE_CSSNumberType type, FX_FLOAT value)
+    : CFDE_CSSValue(FDE_CSSPrimitiveType::Number), type_(type), value_(value) {
+  if (type_ == FDE_CSSNumberType::Number && FXSYS_fabs(value_) < 0.001f)
+    value_ = 0.0f;
+}
+
+CFDE_CSSNumberValue::~CFDE_CSSNumberValue() {}
+
+FX_FLOAT CFDE_CSSNumberValue::Apply(FX_FLOAT percentBase) const {
+  switch (type_) {
+    case FDE_CSSNumberType::Pixels:
+    case FDE_CSSNumberType::Number:
+      return value_ * 72 / 96;
+    case FDE_CSSNumberType::EMS:
+    case FDE_CSSNumberType::EXS:
+      return value_ * percentBase;
+    case FDE_CSSNumberType::Percent:
+      return value_ * percentBase / 100.0f;
+    case FDE_CSSNumberType::CentiMeters:
+      return value_ * 28.3464f;
+    case FDE_CSSNumberType::MilliMeters:
+      return value_ * 2.8346f;
+    case FDE_CSSNumberType::Inches:
+      return value_ * 72.0f;
+    case FDE_CSSNumberType::Picas:
+      return value_ / 12.0f;
+    case FDE_CSSNumberType::Points:
+      return value_;
+  }
+  return value_;
+}