Split fwl/core class pt I.

xfa/fwl/core/cfwl_sysbtn.cpp

Index: xfa/fwl/core/cfwl_sysbtn.cpp
diff --git a/xfa/fwl/core/cfwl_sysbtn.cpp b/xfa/fwl/core/cfwl_sysbtn.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..4adc79f04a617a12c019e36ad8de38847a5d6cc5
--- /dev/null
+++ b/xfa/fwl/core/cfwl_sysbtn.cpp
@@ -0,0 +1,47 @@
+// Copyright 2016 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/fwl/core/cfwl_sysbtn.h"
+
+#include "xfa/fwl/core/cfwl_themepart.h"
+
+CFWL_SysBtn::CFWL_SysBtn() {
+  m_rtBtn.Set(0, 0, 0, 0);
+  m_dwState = 0;
+}
+
+bool CFWL_SysBtn::IsDisabled() const {
+  return !!(m_dwState & FWL_SYSBUTTONSTATE_Disabled);
+}
+
+void CFWL_SysBtn::SetNormal() {
+  m_dwState &= 0xFFF0;
+}
+
+void CFWL_SysBtn::SetPressed() {
+  SetNormal();
+  m_dwState |= FWL_SYSBUTTONSTATE_Pressed;
+}
+
+void CFWL_SysBtn::SetHover() {
+  SetNormal();
+  m_dwState |= FWL_SYSBUTTONSTATE_Hover;
+}
+
+void CFWL_SysBtn::SetDisabled(bool bDisabled) {
+  bDisabled ? m_dwState |= FWL_SYSBUTTONSTATE_Disabled
+            : m_dwState &= ~FWL_SYSBUTTONSTATE_Disabled;
+}
+
+uint32_t CFWL_SysBtn::GetPartState() const {
+  if (IsDisabled())
+    return CFWL_PartState_Disabled;
+  if (m_dwState & FWL_SYSBUTTONSTATE_Pressed)
+    return CFWL_PartState_Pressed;
+  if (m_dwState & FWL_SYSBUTTONSTATE_Hover)
+    return CFWL_PartState_Hovered;
+  return CFWL_PartState_Normal;
+}