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authorDan Sinclair <dsinclair@chromium.org>2017-03-29 15:18:41 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-03-29 21:01:07 +0000
commite778668fe92b8c60e0537ee48f79d5af6c1a2f1e (patch)
treece7ce115b6f7306a6363f4a3d26d0de2c5646aea /fxbarcode/datamatrix/BC_EdifactEncoder.cpp
parentb929ab0886a2b0ceb701989ef126e5b0cabf6997 (diff)
downloadpdfium-e778668fe92b8c60e0537ee48f79d5af6c1a2f1e.tar.xz
Move xfa/fxbarcode fxbarcode/
Nothing in fxbarcode/ depends on XFA code. This CL moves xfa/fxbarcode to be fxbarcode/ and creates a static_library for fxbarcode which is depend on by the xfa library. Change-Id: I0b708737b07efb94b769a5238d92af92bc62880d Reviewed-on: https://pdfium-review.googlesource.com/3291 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
Diffstat (limited to 'fxbarcode/datamatrix/BC_EdifactEncoder.cpp')
-rw-r--r--fxbarcode/datamatrix/BC_EdifactEncoder.cpp152
1 files changed, 152 insertions, 0 deletions
diff --git a/fxbarcode/datamatrix/BC_EdifactEncoder.cpp b/fxbarcode/datamatrix/BC_EdifactEncoder.cpp
new file mode 100644
index 0000000000..61eea93d33
--- /dev/null
+++ b/fxbarcode/datamatrix/BC_EdifactEncoder.cpp
@@ -0,0 +1,152 @@
+// 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
+// Original code is licensed as follows:
+/*
+ * Copyright 2006-2007 Jeremias Maerki.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "fxbarcode/BC_Dimension.h"
+#include "fxbarcode/common/BC_CommonBitMatrix.h"
+#include "fxbarcode/datamatrix/BC_EdifactEncoder.h"
+#include "fxbarcode/datamatrix/BC_Encoder.h"
+#include "fxbarcode/datamatrix/BC_EncoderContext.h"
+#include "fxbarcode/datamatrix/BC_HighLevelEncoder.h"
+#include "fxbarcode/datamatrix/BC_SymbolInfo.h"
+#include "fxbarcode/datamatrix/BC_SymbolShapeHint.h"
+
+CBC_EdifactEncoder::CBC_EdifactEncoder() {}
+CBC_EdifactEncoder::~CBC_EdifactEncoder() {}
+int32_t CBC_EdifactEncoder::getEncodingMode() {
+ return EDIFACT_ENCODATION;
+}
+void CBC_EdifactEncoder::Encode(CBC_EncoderContext& context, int32_t& e) {
+ CFX_WideString buffer;
+ while (context.hasMoreCharacters()) {
+ wchar_t c = context.getCurrentChar();
+ encodeChar(c, buffer, e);
+ if (e != BCExceptionNO) {
+ return;
+ }
+ context.m_pos++;
+ int32_t count = buffer.GetLength();
+ if (count >= 4) {
+ context.writeCodewords(encodeToCodewords(buffer, 0, e));
+ if (e != BCExceptionNO) {
+ return;
+ }
+ buffer.Delete(0, 4);
+ int32_t newMode = CBC_HighLevelEncoder::lookAheadTest(
+ context.m_msg, context.m_pos, getEncodingMode());
+ if (newMode != getEncodingMode()) {
+ context.signalEncoderChange(ASCII_ENCODATION);
+ break;
+ }
+ }
+ }
+ buffer += (wchar_t)31;
+ handleEOD(context, buffer, e);
+}
+void CBC_EdifactEncoder::handleEOD(CBC_EncoderContext& context,
+ CFX_WideString buffer,
+ int32_t& e) {
+ int32_t count = buffer.GetLength();
+ if (count == 0) {
+ return;
+ }
+ if (count == 1) {
+ context.updateSymbolInfo(e);
+ if (e != BCExceptionNO) {
+ return;
+ }
+ int32_t available =
+ context.m_symbolInfo->m_dataCapacity - context.getCodewordCount();
+ int32_t remaining = context.getRemainingCharacters();
+ if (remaining == 0 && available <= 2) {
+ return;
+ }
+ }
+ if (count > 4) {
+ e = BCExceptionIllegalStateCountMustNotExceed4;
+ return;
+ }
+ int32_t restChars = count - 1;
+ CFX_WideString encoded = encodeToCodewords(buffer, 0, e);
+ if (e != BCExceptionNO) {
+ return;
+ }
+ bool endOfSymbolReached = !context.hasMoreCharacters();
+ bool restInAscii = endOfSymbolReached && restChars <= 2;
+ if (restChars <= 2) {
+ context.updateSymbolInfo(context.getCodewordCount() + restChars, e);
+ if (e != BCExceptionNO) {
+ return;
+ }
+ int32_t available =
+ context.m_symbolInfo->m_dataCapacity - context.getCodewordCount();
+ if (available >= 3) {
+ restInAscii = false;
+ context.updateSymbolInfo(context.getCodewordCount() + encoded.GetLength(),
+ e);
+ if (e != BCExceptionNO) {
+ return;
+ }
+ }
+ }
+ if (restInAscii) {
+ context.resetSymbolInfo();
+ context.m_pos -= restChars;
+ } else {
+ context.writeCodewords(encoded);
+ }
+ context.signalEncoderChange(ASCII_ENCODATION);
+}
+void CBC_EdifactEncoder::encodeChar(wchar_t c, CFX_WideString& sb, int32_t& e) {
+ if (c >= ' ' && c <= '?') {
+ sb += c;
+ } else if (c >= '@' && c <= '^') {
+ sb += (wchar_t)(c - 64);
+ } else {
+ CBC_HighLevelEncoder::illegalCharacter(c, e);
+ }
+}
+CFX_WideString CBC_EdifactEncoder::encodeToCodewords(CFX_WideString sb,
+ int32_t startPos,
+ int32_t& e) {
+ int32_t len = sb.GetLength() - startPos;
+ if (len == 0) {
+ e = BCExceptionNoContents;
+ return CFX_WideString();
+ }
+ wchar_t c1 = sb.GetAt(startPos);
+ wchar_t c2 = len >= 2 ? sb.GetAt(startPos + 1) : 0;
+ wchar_t c3 = len >= 3 ? sb.GetAt(startPos + 2) : 0;
+ wchar_t c4 = len >= 4 ? sb.GetAt(startPos + 3) : 0;
+ int32_t v = (c1 << 18) + (c2 << 12) + (c3 << 6) + c4;
+ wchar_t cw1 = (wchar_t)((v >> 16) & 255);
+ wchar_t cw2 = (wchar_t)((v >> 8) & 255);
+ wchar_t cw3 = (wchar_t)(v & 255);
+ CFX_WideString res;
+ res += cw1;
+ if (len >= 2) {
+ res += cw2;
+ }
+ if (len >= 3) {
+ res += cw3;
+ }
+ return res;
+}