? 一、zint開源庫的介紹

zint 是一個開源的條碼編碼庫，它支持超過50種條碼，包括 Code-128, Data Matrix, EAN-128, UPC/EAN, ITF, QR Code, Code 16k, PDF417, MicroPDF417, LOGMARS, Maxicode, GS1 DataBar, Aztec, Composite Symbols 等等，基本上你見過的條碼都能用它來進(jìn)行編碼，它支持直接輸出 PNG 格式的圖像文件和位圖的字節(jié)數(shù)組。

它的開源項目介紹頁面，Zint Barcode Generator download | SourceForge.net 可自行閱讀。

二、zint源碼在linux平臺下的編譯和安裝

編譯平臺介紹：

系統(tǒng)版本 ：Red Hat Enterprise Linux6

Linux內(nèi)核版本：Linux localhost.localdomain 2.6.32-71.el6.i686 #1 SMP Wed Sep 1 01:26:34 EDT 2010 i686 i686 i386 GNU/Linux

gcc版本 ：4.4.4 20100726 (Red Hat 4.4.4-13) (GCC)

zint版本：zint-2.4.3

編譯步驟：

1) 下載源碼

在開源頁面中下載到對應(yīng)版本的zint源碼；

Zint Barcode Generator - Browse /zint/2.4.3 at SourceForge.net

筆者下載的版本是zint-2.4.3，對應(yīng)的壓縮包文件為 zint-2.4.3.tar.gz

將下載的源碼放于一個新的linux的目錄下，比如/zint_src

2) 解壓源碼

cd /zint_src

tar –xvf zint-2.4.3.tar.gz 解壓到當(dāng)前目錄

解壓完了之后，用ls看一下當(dāng)前路徑，如果有zint-2.4.3文件夾生成，且里面有文件，解壓過程沒有報錯，則表示解壓成功了。

3) 閱讀編譯指南

cd zint-2.4.3

vi readme-cmake

里面的內(nèi)容如下：

how to :

mkdir build

cd build

cmake ..

make [-j nr_proc+1]

make install

4) 開始正式編譯

mkdir build

cd build

cmake ..

執(zhí)行后這句后，成功的話就會提示 Build files have been written to: /zint_src/zint-2.4.3/build

這個時候ls一下當(dāng)前目錄就會發(fā)現(xiàn)有makefile了，我們就可以使用make直接來安裝了

make install

輸入完后，會看到百分比提示了：

【筆者第一次make install報錯了，是因為windows主機(jī)和linux虛擬機(jī)之間使用了共享文件，剛好做so文件軟鏈接的時候就報錯了，如下：】

[root@localhost build]# make install

Scanning dependencies of target zint

[ 1%] Building C object backend/CMakeFiles/zint.dir/common.c.o

[ 3%] Building C object backend/CMakeFiles/zint.dir/library.c.o

[ 5%] Building C object backend/CMakeFiles/zint.dir/render.c.o

.....[中間省略]

[ 55%] Building C object backend/CMakeFiles/zint.dir/code1.c.o

[ 57%] Building C object backend/CMakeFiles/zint.dir/gridmtx.c.o

Linking C shared library libzint.so

CMake Error: cmake_symlink_library: System Error: Operation not supported

CMake Error: cmake_symlink_library: System Error: Operation not supported

make[2]: *** [backend/libzint.so.2.4.1] 錯誤 1

make[1]: *** [backend/CMakeFiles/zint.dir/all] 錯誤 2

make: *** [all] 錯誤 2

[root@localhost build]#

如果按照一開始將源碼放于/zint_src （非主機(jī)與虛擬機(jī)的共享目錄），則可以很順利的編譯和安裝，如下：

root@localhost build]# make install

Scanning dependencies of target zint

[ 1%] Building C object backend/CMakeFiles/zint.dir/common.c.o

[ 3%] Building C object backend/CMakeFiles/zint.dir/library.c.o

[ 5%] Building C object backend/CMakeFiles/zint.dir/render.c.o

[ 7%] Building C object backend/CMakeFiles/zint.dir/ps.c.o

[ 9%] Building C object backend/CMakeFiles/zint.dir/large.c.o

[ 11%] Building C object backend/CMakeFiles/zint.dir/reedsol.c.o

.....[中間省略]

[ 53%] Building C object backend/CMakeFiles/zint.dir/code49.c.o

[ 55%] Building C object backend/CMakeFiles/zint.dir/code1.c.o

[ 57%] Building C object backend/CMakeFiles/zint.dir/gridmtx.c.o

Linking C shared library libzint.so

[ 57%] Built target zint

Scanning dependencies of target zint_frontend

[ 59%] Building C object frontend/CMakeFiles/zint_frontend.dir/main.c.o

Linking C executable zint

[ 59%] Built target zint_frontend

Scanning dependencies of target QZint

[ 61%] Building CXX object backend_qt4/CMakeFiles/QZint.dir/qzint.cpp.o

Linking CXX shared library libQZint.so

[ 61%] Built target QZint

[ 63%] Generating qrc_resources.cxx

[ 65%] Generating moc_mainwindow.cxx

[ 67%] Generating moc_datawindow.cxx

[ 69%] Generating moc_sequencewindow.cxx

[ 71%] Generating moc_exportwindow.cxx

[ 73%] Generating ui_mainWindow.h

[ 75%] Generating ui_extData.h

[ 76%] Generating ui_extSequence.h

[ 78%] Generating ui_extExport.h

Scanning dependencies of target zint-qt

[ 80%] Building CXX object

frontend_qt4/CMakeFiles/zint-qt.dir/barcodeitem.cpp.o

[ 82%] Building CXX object frontend_qt4/CMakeFiles/zint-qt.dir/main.cpp.o

[ 84%] Building CXX object

frontend_qt4/CMakeFiles/zint-qt.dir/mainwindow.cpp.o

[ 86%] Building CXX object

frontend_qt4/CMakeFiles/zint-qt.dir/datawindow.cpp.o

[ 88%] Building CXX object

frontend_qt4/CMakeFiles/zint-qt.dir/sequencewindow.cpp.o

[ 90%] Building CXX object

frontend_qt4/CMakeFiles/zint-qt.dir/exportwindow.cpp.o

[ 92%] Building CXX object

frontend_qt4/CMakeFiles/zint-qt.dir/moc_mainwindow.cxx.o

[ 94%] Building CXX object

frontend_qt4/CMakeFiles/zint-qt.dir/moc_datawindow.cxx.o

[ 96%] Building CXX object

frontend_qt4/CMakeFiles/zint-qt.dir/moc_sequencewindow.cxx.o

[ 98%] Building CXX object

frontend_qt4/CMakeFiles/zint-qt.dir/moc_exportwindow.cxx.o

[100%] Building CXX object

frontend_qt4/CMakeFiles/zint-qt.dir/qrc_resources.cxx.o

Linking CXX executable zint-qt

[100%] Built target zint-qt

Install the project...

-- Install configuration: "RelWithDebInfo"

-- Installing: /usr/share/cmake/Modules/FindZint.cmake

-- Installing: /usr/local/lib/libzint.so.2.4.1

-- Installing: /usr/local/lib/libzint.so.2.4

-- Installing: /usr/local/lib/libzint.so

-- Installing: /usr/local/include/zint.h

-- Installing: /usr/local/bin/zint

-- Installing: /usr/local/lib/libQZint.so.2.4.1

-- Installing: /usr/local/lib/libQZint.so.2.4

-- Installing: /usr/local/lib/libQZint.so

-- Installing: /usr/local/include/qzint.h

-- Installing: /usr/local/bin/zint-qt

到這里zint庫就已經(jīng)安裝好了。

5) 測試zint和libzint

通過第4步后已經(jīng)完成了安裝，這個步驟我們來試一下zint和libzint如下：

先看下libzint是否安裝成功，

[root@localhost build]# ls -al /usr/local/lib/libzint.so

lrwxrwxrwx. 1 root root 14 10月 16 17:20 /usr/local/lib/libzint.so ->

libzint.so.2.4

則正是zint動態(tài)庫已經(jīng)鏈接完成。

測試zint 如下：

在終端輸入 zint –h

[liluchang@localhost src]$ zint -h

Zint version 2.4.1

Encode input data in a barcode and save as a PNG, EPS or SVG file.

-h, --help Display this message.

-t, --types Display table of barcode types

-i, --input=FILE Read data from FILE.

-o, --output=FILE Write image to FILE. (default is out.png)

-d, --data=DATA Barcode content.

-b, --barcode=NUMBER Number of barcode type (default is 20 (=Code128)).

--height=NUMBER Height of symbol in multiples of x-dimension.

-w, --whitesp=NUMBER Width of whitespace in multiples of x-dimension.

--border=NUMBER Width of border in multiples of x-dimension.

--box Add a box.

--bind Add boundary bars.

-r, --reverse Reverse colours (white on black).

--fg=COLOUR Specify a foreground colour.

--bg=COLOUR Specify a background colour.

--scale=NUMBER Adjust size of output image.

--directpng Send PNG output to stdout

--directeps Send EPS output to stdout

--directsvg Send SVG output to stdout

--dump Dump binary data to stdout

--rotate=NUMBER Rotate symbol (PNG output only).

--cols=NUMBER (PDF417) Number of columns.

--vers=NUMBER (QR Code) Version

--secure=NUMBER (PDF417 and QR Code) Error correction level.

--primary=STRING (Maxicode and Composite) Structured primary message.

--mode=NUMBER (Maxicode and Composite) Set encoding mode.

--gs1 Treat input as GS1 data

--binary Treat input as Binary data

--notext Remove human readable text

--square Force Data Matrix symbols to be square

--init Create reader initialisation symbol (Code 128)

--smalltext Use half-size text in PNG images

--batch Treat each line of input as a separate data set

error: No data received, no symbol generated

[liluchang@localhost src]$

能看到版本信息，證明zint這個bin文件已經(jīng)安裝好了。

至此zint和libzint的安裝已全部結(jié)束，筆者在安裝的過程中，幾乎使用的默認(rèn)路徑，感興趣的童鞋可以試著修改一些自定義的安裝路徑，可以定制化自己的zint和libzint。

本章介紹到此結(jié)束，下一篇將介紹如何使用libzint生成二維碼，敬請關(guān)注。