Move xfa/fwl/core to xfa/fwl.

The core/ directory in FWL no-longer provides any context. This Cl moves all
of the core/ files up to the fwl/ folder.

As well, the CFWL_EvtFoo files are renamed CFWL_EventFoo and the CFWL_MsgFoo
files are renamed CFWL_MessageFoo. The event and message preceed the type in
order to keep the files sorted together and to make it clear that they're all
related.

Review-Url: https://codereview.chromium.org/2559173002
diff --git a/xfa/fwl/cfwl_barcode.cpp b/xfa/fwl/cfwl_barcode.cpp
new file mode 100644
index 0000000..83ab74a
--- /dev/null
+++ b/xfa/fwl/cfwl_barcode.cpp
@@ -0,0 +1,232 @@
+// 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 "xfa/fwl/cfwl_barcode.h"
+
+#include <utility>
+
+#include "third_party/base/ptr_util.h"
+#include "xfa/fgas/font/cfgas_gefont.h"
+#include "xfa/fwl/cfwl_notedriver.h"
+#include "xfa/fwl/cfwl_themepart.h"
+#include "xfa/fwl/cfx_barcode.h"
+#include "xfa/fwl/ifwl_themeprovider.h"
+
+CFWL_Barcode::CFWL_Barcode(const CFWL_App* app)
+    : CFWL_Edit(app, pdfium::MakeUnique<CFWL_WidgetProperties>(), nullptr),
+      m_dwStatus(0),
+      m_type(BC_UNKNOWN),
+      m_dwAttributeMask(FWL_BCDATTRIBUTE_NONE) {}
+
+CFWL_Barcode::~CFWL_Barcode() {}
+
+FWL_Type CFWL_Barcode::GetClassID() const {
+  return FWL_Type::Barcode;
+}
+
+void CFWL_Barcode::Update() {
+  if (IsLocked())
+    return;
+
+  CFWL_Edit::Update();
+  GenerateBarcodeImageCache();
+}
+
+void CFWL_Barcode::DrawWidget(CFX_Graphics* pGraphics,
+                              const CFX_Matrix* pMatrix) {
+  if (!pGraphics)
+    return;
+  if (!m_pProperties->m_pThemeProvider)
+    return;
+  if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0) {
+    GenerateBarcodeImageCache();
+    if (!m_pBarcodeEngine || (m_dwStatus & XFA_BCS_EncodeSuccess) == 0)
+      return;
+
+    CFX_Matrix mt;
+    mt.e = GetRTClient().left;
+    mt.f = GetRTClient().top;
+    if (pMatrix)
+      mt.Concat(*pMatrix);
+
+    int32_t errorCode = 0;
+    m_pBarcodeEngine->RenderDevice(pGraphics->GetRenderDevice(), pMatrix,
+                                   errorCode);
+    return;
+  }
+  CFWL_Edit::DrawWidget(pGraphics, pMatrix);
+}
+
+void CFWL_Barcode::SetType(BC_TYPE type) {
+  if (m_type == type)
+    return;
+
+  m_pBarcodeEngine.reset();
+  m_type = type;
+  m_dwStatus = XFA_BCS_NeedUpdate;
+}
+
+void CFWL_Barcode::SetText(const CFX_WideString& wsText) {
+  m_pBarcodeEngine.reset();
+  m_dwStatus = XFA_BCS_NeedUpdate;
+  CFWL_Edit::SetText(wsText);
+}
+
+bool CFWL_Barcode::IsProtectedType() const {
+  if (!m_pBarcodeEngine)
+    return true;
+
+  BC_TYPE tEngineType = m_pBarcodeEngine->GetType();
+  if (tEngineType == BC_QR_CODE || tEngineType == BC_PDF417 ||
+      tEngineType == BC_DATAMATRIX) {
+    return true;
+  }
+  return false;
+}
+
+void CFWL_Barcode::OnProcessEvent(CFWL_Event* pEvent) {
+  if (pEvent->GetType() == CFWL_Event::Type::TextChanged) {
+    m_pBarcodeEngine.reset();
+    m_dwStatus = XFA_BCS_NeedUpdate;
+  }
+  CFWL_Edit::OnProcessEvent(pEvent);
+}
+
+void CFWL_Barcode::SetCharEncoding(BC_CHAR_ENCODING encoding) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_CHARENCODING;
+  m_eCharEncoding = encoding;
+}
+
+void CFWL_Barcode::SetModuleHeight(int32_t height) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_MODULEHEIGHT;
+  m_nModuleHeight = height;
+}
+
+void CFWL_Barcode::SetModuleWidth(int32_t width) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_MODULEWIDTH;
+  m_nModuleWidth = width;
+}
+
+void CFWL_Barcode::SetDataLength(int32_t dataLength) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_DATALENGTH;
+  m_nDataLength = dataLength;
+  SetLimit(dataLength);
+}
+
+void CFWL_Barcode::SetCalChecksum(bool calChecksum) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_CALCHECKSUM;
+  m_bCalChecksum = calChecksum;
+}
+
+void CFWL_Barcode::SetPrintChecksum(bool printChecksum) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_PRINTCHECKSUM;
+  m_bPrintChecksum = printChecksum;
+}
+
+void CFWL_Barcode::SetTextLocation(BC_TEXT_LOC location) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_TEXTLOCATION;
+  m_eTextLocation = location;
+}
+
+void CFWL_Barcode::SetWideNarrowRatio(int32_t ratio) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_WIDENARROWRATIO;
+  m_nWideNarrowRatio = ratio;
+}
+
+void CFWL_Barcode::SetStartChar(FX_CHAR startChar) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_STARTCHAR;
+  m_cStartChar = startChar;
+}
+
+void CFWL_Barcode::SetEndChar(FX_CHAR endChar) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_ENDCHAR;
+  m_cEndChar = endChar;
+}
+
+void CFWL_Barcode::SetErrorCorrectionLevel(int32_t ecLevel) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_ECLEVEL;
+  m_nECLevel = ecLevel;
+}
+
+void CFWL_Barcode::SetTruncated(bool truncated) {
+  m_dwAttributeMask |= FWL_BCDATTRIBUTE_TRUNCATED;
+  m_bTruncated = truncated;
+}
+
+void CFWL_Barcode::GenerateBarcodeImageCache() {
+  if ((m_dwStatus & XFA_BCS_NeedUpdate) == 0)
+    return;
+
+  m_dwStatus = 0;
+  CreateBarcodeEngine();
+  if (!m_pBarcodeEngine)
+    return;
+
+  CFX_WideString wsText = GetText();
+
+  CFWL_ThemePart part;
+  part.m_pWidget = this;
+
+  IFWL_ThemeProvider* pTheme = GetAvailableTheme();
+  CFGAS_GEFont* pFont = static_cast<CFGAS_GEFont*>(
+      pTheme->GetCapacity(&part, CFWL_WidgetCapacity::Font));
+  CFX_Font* pCXFont = pFont ? pFont->GetDevFont() : nullptr;
+  if (pCXFont)
+    m_pBarcodeEngine->SetFont(pCXFont);
+
+  FX_FLOAT* pFontSize = static_cast<FX_FLOAT*>(
+      pTheme->GetCapacity(&part, CFWL_WidgetCapacity::FontSize));
+  if (pFontSize)
+    m_pBarcodeEngine->SetFontSize(*pFontSize);
+
+  FX_ARGB* pFontColor = static_cast<FX_ARGB*>(
+      pTheme->GetCapacity(&part, CFWL_WidgetCapacity::TextColor));
+  if (pFontColor)
+    m_pBarcodeEngine->SetFontColor(*pFontColor);
+
+  m_pBarcodeEngine->SetHeight(int32_t(GetRTClient().height));
+  m_pBarcodeEngine->SetWidth(int32_t(GetRTClient().width));
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_CHARENCODING)
+    m_pBarcodeEngine->SetCharEncoding(m_eCharEncoding);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_MODULEHEIGHT)
+    m_pBarcodeEngine->SetModuleHeight(m_nModuleHeight);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_MODULEWIDTH)
+    m_pBarcodeEngine->SetModuleWidth(m_nModuleWidth);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_DATALENGTH)
+    m_pBarcodeEngine->SetDataLength(m_nDataLength);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_CALCHECKSUM)
+    m_pBarcodeEngine->SetCalChecksum(m_bCalChecksum);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_PRINTCHECKSUM)
+    m_pBarcodeEngine->SetPrintChecksum(m_bPrintChecksum);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_TEXTLOCATION)
+    m_pBarcodeEngine->SetTextLocation(m_eTextLocation);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_WIDENARROWRATIO)
+    m_pBarcodeEngine->SetWideNarrowRatio(m_nWideNarrowRatio);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_STARTCHAR)
+    m_pBarcodeEngine->SetStartChar(m_cStartChar);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_ENDCHAR)
+    m_pBarcodeEngine->SetEndChar(m_cEndChar);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_VERSION)
+    m_pBarcodeEngine->SetVersion(0);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_ECLEVEL)
+    m_pBarcodeEngine->SetErrorCorrectionLevel(m_nECLevel);
+  if (m_dwAttributeMask & FWL_BCDATTRIBUTE_TRUNCATED)
+    m_pBarcodeEngine->SetTruncated(m_bTruncated);
+
+  int32_t errorCode = 0;
+  m_dwStatus = m_pBarcodeEngine->Encode(wsText.AsStringC(), true, errorCode)
+                   ? XFA_BCS_EncodeSuccess
+                   : 0;
+}
+
+void CFWL_Barcode::CreateBarcodeEngine() {
+  if (m_pBarcodeEngine || m_type == BC_UNKNOWN)
+    return;
+
+  std::unique_ptr<CFX_Barcode> pBarcode(new CFX_Barcode);
+  if (pBarcode->Create(m_type))
+    m_pBarcodeEngine = std::move(pBarcode);
+}