Print Preview: Making margin selection sticky (part 2/2)

printing/page_size_margins.cc

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "printing/page_size_margins.h"
+
+#include "base/logging.h"
+#include "base/values.h"
+#include "printing/print_job_constants.h"
+
+namespace printing {
+
+void getCustomMarginsFromJobSettings(const base::DictionaryValue& settings,
+                                     PageSizeMargins* page_size_margins) {
+  DictionaryValue* custom_margins;
+  if (!settings.GetDictionary(kSettingMarginsCustom, &custom_margins) ||
+      !custom_margins->GetDouble(kSettingMarginTop,
+                                 &page_size_margins->margin_top) ||
+      !custom_margins->GetDouble(kSettingMarginBottom,
+                                 &page_size_margins->margin_bottom) ||
+      !custom_margins->GetDouble(kSettingMarginLeft,
+                                 &page_size_margins->margin_left) ||
+      !custom_margins->GetDouble(kSettingMarginRight,
+                                 &page_size_margins->margin_right)) {
+    NOTREACHED();
+  }
+}
+
+}  // namespace printing