1 // Copyright 2016 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 /*
7 * Copyright 2011 ZXing authors
8 *
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 */
21
22 #include "xfa/fxbarcode/cbc_ean8.h"
23
24 #include "xfa/fxbarcode/oned/BC_OnedEAN8Writer.h"
25
CBC_EAN8()26 CBC_EAN8::CBC_EAN8() : CBC_OneCode(new CBC_OnedEAN8Writer) {}
27
~CBC_EAN8()28 CBC_EAN8::~CBC_EAN8() {}
29
Preprocess(const CFX_WideStringC & contents)30 CFX_WideString CBC_EAN8::Preprocess(const CFX_WideStringC& contents) {
31 CFX_WideString encodeContents =
32 static_cast<CBC_OnedEAN8Writer*>(m_pBCWriter.get())
33 ->FilterContents(contents);
34 int32_t length = encodeContents.GetLength();
35 if (length <= 7) {
36 for (int32_t i = 0; i < 7 - length; i++)
37 encodeContents = FX_WCHAR('0') + encodeContents;
38
39 CFX_ByteString byteString = encodeContents.UTF8Encode();
40 int32_t checksum = static_cast<CBC_OnedEAN8Writer*>(m_pBCWriter.get())
41 ->CalcChecksum(byteString);
42 encodeContents += FX_WCHAR(checksum - 0 + '0');
43 }
44 if (length > 8)
45 encodeContents = encodeContents.Mid(0, 8);
46
47 return encodeContents;
48 }
49
Encode(const CFX_WideStringC & contents,FX_BOOL isDevice,int32_t & e)50 FX_BOOL CBC_EAN8::Encode(const CFX_WideStringC& contents,
51 FX_BOOL isDevice,
52 int32_t& e) {
53 if (contents.IsEmpty()) {
54 e = BCExceptionNoContents;
55 return FALSE;
56 }
57 BCFORMAT format = BCFORMAT_EAN_8;
58 int32_t outWidth = 0;
59 int32_t outHeight = 0;
60 CFX_WideString encodeContents = Preprocess(contents);
61 CFX_ByteString byteString = encodeContents.UTF8Encode();
62 m_renderContents = encodeContents;
63 uint8_t* data = static_cast<CBC_OnedEAN8Writer*>(m_pBCWriter.get())
64 ->Encode(byteString, format, outWidth, outHeight, e);
65 BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
66 static_cast<CBC_OneDimWriter*>(m_pBCWriter.get())
67 ->RenderResult(encodeContents.AsStringC(), data, outWidth, isDevice, e);
68 FX_Free(data);
69 BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
70 return TRUE;
71 }
72
RenderDevice(CFX_RenderDevice * device,const CFX_Matrix * matrix,int32_t & e)73 FX_BOOL CBC_EAN8::RenderDevice(CFX_RenderDevice* device,
74 const CFX_Matrix* matrix,
75 int32_t& e) {
76 static_cast<CBC_OneDimWriter*>(m_pBCWriter.get())
77 ->RenderDeviceResult(device, matrix, m_renderContents.AsStringC(), e);
78 BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
79 return TRUE;
80 }
81
RenderBitmap(CFX_DIBitmap * & pOutBitmap,int32_t & e)82 FX_BOOL CBC_EAN8::RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) {
83 static_cast<CBC_OneDimWriter*>(m_pBCWriter.get())
84 ->RenderBitmapResult(pOutBitmap, m_renderContents.AsStringC(), e);
85 BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
86 return TRUE;
87 }
88
GetType()89 BC_TYPE CBC_EAN8::GetType() {
90 return BC_EAN8;
91 }
92